diff options
Diffstat (limited to 'drivers/gpu/drm/tests')
27 files changed, 9745 insertions, 2522 deletions
diff --git a/drivers/gpu/drm/tests/.kunitconfig b/drivers/gpu/drm/tests/.kunitconfig index 6ec04b4c979d..5be8e71f45d5 100644 --- a/drivers/gpu/drm/tests/.kunitconfig +++ b/drivers/gpu/drm/tests/.kunitconfig @@ -1,3 +1,5 @@ CONFIG_KUNIT=y CONFIG_DRM=y +CONFIG_DRM_VKMS=y +CONFIG_DRM_FBDEV_EMULATION=y CONFIG_DRM_KUNIT_TEST=y diff --git a/drivers/gpu/drm/tests/Makefile b/drivers/gpu/drm/tests/Makefile index bca726a8f483..87d5d5f9332a 100644 --- a/drivers/gpu/drm/tests/Makefile +++ b/drivers/gpu/drm/tests/Makefile @@ -4,19 +4,27 @@ obj-$(CONFIG_DRM_KUNIT_TEST_HELPERS) += \ drm_kunit_helpers.o obj-$(CONFIG_DRM_KUNIT_TEST) += \ + drm_atomic_test.o \ + drm_atomic_state_test.o \ + drm_bridge_test.o \ drm_buddy_test.o \ drm_cmdline_parser_test.o \ drm_connector_test.o \ drm_damage_helper_test.o \ drm_dp_mst_helper_test.o \ + drm_exec_test.o \ drm_format_helper_test.o \ drm_format_test.o \ drm_framebuffer_test.o \ + drm_gem_shmem_test.o \ + drm_hdmi_state_helper_test.o \ drm_managed_test.o \ drm_mm_test.o \ drm_modes_test.o \ drm_plane_helper_test.o \ drm_probe_helper_test.o \ - drm_rect_test.o + drm_rect_test.o \ + drm_sysfb_modeset_test.o \ + drm_fixp_test.o CFLAGS_drm_mm_test.o := $(DISABLE_STRUCTLEAK_PLUGIN) diff --git a/drivers/gpu/drm/tests/drm_atomic_state_test.c b/drivers/gpu/drm/tests/drm_atomic_state_test.c new file mode 100644 index 000000000000..2f6ac7a09f44 --- /dev/null +++ b/drivers/gpu/drm/tests/drm_atomic_state_test.c @@ -0,0 +1,379 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Test cases for the drm_atomic_state helpers + * + * Copyright (c) 2024 Qualcomm Innovation Center, Inc. All rights reserved. + */ + +#include <drm/drm_atomic.h> +#include <drm/drm_atomic_helper.h> +#include <drm/drm_atomic_uapi.h> +#include <drm/drm_kunit_helpers.h> +#include <drm/drm_probe_helper.h> + +#define DRM_TEST_ENC_0 BIT(0) +#define DRM_TEST_ENC_1 BIT(1) +#define DRM_TEST_ENC_2 BIT(2) + +#define DRM_TEST_CONN_0 BIT(0) + +struct drm_clone_mode_test { + const char *name; + u32 encoder_mask; + int expected_result; +}; + +static const struct drm_display_mode drm_atomic_test_mode = { + DRM_MODE("1024x768", 0, 65000, 1024, 1048, + 1184, 1344, 0, 768, 771, 777, 806, 0, + DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) +}; + +struct drm_atomic_test_priv { + struct drm_device drm; + struct drm_plane *plane; + struct drm_crtc *crtc; + struct drm_encoder encoders[3]; + struct drm_connector connectors[2]; +}; + +static int modeset_counter; + +static void drm_test_encoder_mode_set(struct drm_encoder *encoder, + struct drm_crtc_state *crtc_state, + struct drm_connector_state *conn_state) +{ + modeset_counter++; +} + +static const struct drm_encoder_helper_funcs drm_atomic_test_encoder_funcs = { + .atomic_mode_set = drm_test_encoder_mode_set, +}; + +static const struct drm_connector_funcs dummy_connector_funcs = { + .atomic_destroy_state = drm_atomic_helper_connector_destroy_state, + .atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state, + .reset = drm_atomic_helper_connector_reset, +}; + +static int drm_atomic_test_dummy_get_modes(struct drm_connector *connector) +{ + return drm_connector_helper_get_modes_fixed(connector, + &drm_atomic_test_mode); +} + +static const struct drm_connector_helper_funcs dummy_connector_helper_funcs = { + .get_modes = drm_atomic_test_dummy_get_modes, +}; + +static struct drm_atomic_test_priv * +drm_atomic_test_init_drm_components(struct kunit *test, bool has_connectors) +{ + struct drm_atomic_test_priv *priv; + struct drm_encoder *enc; + struct drm_connector *conn; + struct drm_device *drm; + struct device *dev; + int ret; + + dev = drm_kunit_helper_alloc_device(test); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, dev); + + priv = drm_kunit_helper_alloc_drm_device(test, dev, + struct drm_atomic_test_priv, + drm, + DRIVER_MODESET | DRIVER_ATOMIC); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, priv); + test->priv = priv; + + drm = &priv->drm; + priv->plane = drm_kunit_helper_create_primary_plane(test, drm, + NULL, + NULL, + NULL, 0, + NULL); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, priv->plane); + + priv->crtc = drm_kunit_helper_create_crtc(test, drm, + priv->plane, NULL, + NULL, + NULL); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, priv->crtc); + + for (int i = 0; i < ARRAY_SIZE(priv->encoders); i++) { + enc = &priv->encoders[i]; + + ret = drmm_encoder_init(drm, enc, NULL, + DRM_MODE_ENCODER_DSI, NULL); + KUNIT_ASSERT_EQ(test, ret, 0); + + enc->possible_crtcs = drm_crtc_mask(priv->crtc); + } + + priv->encoders[0].possible_clones = DRM_TEST_ENC_0 | DRM_TEST_ENC_1; + priv->encoders[1].possible_clones = DRM_TEST_ENC_0 | DRM_TEST_ENC_1; + priv->encoders[2].possible_clones = DRM_TEST_ENC_2; + + if (!has_connectors) + goto done; + + BUILD_BUG_ON(ARRAY_SIZE(priv->connectors) > ARRAY_SIZE(priv->encoders)); + + for (int i = 0; i < ARRAY_SIZE(priv->connectors); i++) { + conn = &priv->connectors[i]; + + ret = drmm_connector_init(drm, conn, &dummy_connector_funcs, + DRM_MODE_CONNECTOR_DSI, NULL); + KUNIT_ASSERT_EQ(test, ret, 0); + + drm_connector_helper_add(conn, &dummy_connector_helper_funcs); + drm_encoder_helper_add(&priv->encoders[i], + &drm_atomic_test_encoder_funcs); + + drm_connector_attach_encoder(conn, &priv->encoders[i]); + } + +done: + drm_mode_config_reset(drm); + + return priv; +} + +static int set_up_atomic_state(struct kunit *test, + struct drm_atomic_test_priv *priv, + struct drm_connector *connector, + struct drm_modeset_acquire_ctx *ctx) +{ + struct drm_device *drm = &priv->drm; + struct drm_crtc *crtc = priv->crtc; + struct drm_atomic_state *state; + struct drm_connector_state *conn_state; + struct drm_crtc_state *crtc_state; + int ret; + + state = drm_kunit_helper_atomic_state_alloc(test, drm, ctx); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, state); + + if (connector) { + conn_state = drm_atomic_get_connector_state(state, connector); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, conn_state); + + ret = drm_atomic_set_crtc_for_connector(conn_state, crtc); + KUNIT_EXPECT_EQ(test, ret, 0); + } + + crtc_state = drm_atomic_get_crtc_state(state, crtc); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, crtc_state); + + ret = drm_atomic_set_mode_for_crtc(crtc_state, &drm_atomic_test_mode); + KUNIT_EXPECT_EQ(test, ret, 0); + + crtc_state->enable = true; + crtc_state->active = true; + + if (connector) { + ret = drm_atomic_commit(state); + KUNIT_ASSERT_EQ(test, ret, 0); + } else { + // dummy connector mask + crtc_state->connector_mask = DRM_TEST_CONN_0; + } + + return 0; +} + +/* + * Test that the DRM encoder mode_set() is called when the atomic state + * connectors are changed but the CRTC mode is not. + */ +static void drm_test_check_connector_changed_modeset(struct kunit *test) +{ + struct drm_atomic_test_priv *priv; + struct drm_modeset_acquire_ctx ctx; + struct drm_connector *old_conn, *new_conn; + struct drm_atomic_state *state; + struct drm_device *drm; + struct drm_connector_state *new_conn_state, *old_conn_state; + int ret, initial_modeset_count; + + priv = drm_atomic_test_init_drm_components(test, true); + KUNIT_ASSERT_NOT_NULL(test, priv); + + drm = &priv->drm; + old_conn = &priv->connectors[0]; + new_conn = &priv->connectors[1]; + + drm_modeset_acquire_init(&ctx, 0); + + // first modeset to enable + ret = set_up_atomic_state(test, priv, old_conn, &ctx); + KUNIT_ASSERT_EQ(test, ret, 0); + + state = drm_kunit_helper_atomic_state_alloc(test, drm, &ctx); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, state); + + new_conn_state = drm_atomic_get_connector_state(state, new_conn); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, new_conn_state); + + old_conn_state = drm_atomic_get_connector_state(state, old_conn); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, old_conn_state); + + ret = drm_atomic_set_crtc_for_connector(old_conn_state, NULL); + KUNIT_EXPECT_EQ(test, ret, 0); + + ret = drm_atomic_set_crtc_for_connector(new_conn_state, priv->crtc); + KUNIT_EXPECT_EQ(test, ret, 0); + + initial_modeset_count = modeset_counter; + + // modeset_disables is called as part of the atomic commit tail + ret = drm_atomic_commit(state); + KUNIT_ASSERT_EQ(test, ret, 0); + KUNIT_ASSERT_EQ(test, modeset_counter, initial_modeset_count + 1); + + drm_modeset_drop_locks(&ctx); + drm_modeset_acquire_fini(&ctx); +} + +/* + * Test that the drm_crtc_in_clone_mode() helper can detect if a given CRTC + * state is in clone mode + */ +static void drm_test_check_in_clone_mode(struct kunit *test) +{ + bool ret; + const struct drm_clone_mode_test *param = test->param_value; + struct drm_crtc_state *crtc_state; + + crtc_state = kunit_kzalloc(test, sizeof(*crtc_state), GFP_KERNEL); + KUNIT_ASSERT_NOT_NULL(test, crtc_state); + + crtc_state->encoder_mask = param->encoder_mask; + + ret = drm_crtc_in_clone_mode(crtc_state); + + KUNIT_ASSERT_EQ(test, ret, param->expected_result); +} + +/* + * Test that the atomic commit path will succeed for valid clones (or non-cloned + * states) and fail for states where the cloned encoders are not possible_clones + * of each other. + */ +static void drm_test_check_valid_clones(struct kunit *test) +{ + int ret; + const struct drm_clone_mode_test *param = test->param_value; + struct drm_atomic_test_priv *priv; + struct drm_modeset_acquire_ctx ctx; + struct drm_device *drm; + struct drm_atomic_state *state; + struct drm_crtc_state *crtc_state; + + priv = drm_atomic_test_init_drm_components(test, false); + KUNIT_ASSERT_NOT_NULL(test, priv); + + drm = &priv->drm; + + drm_modeset_acquire_init(&ctx, 0); + + ret = set_up_atomic_state(test, priv, NULL, &ctx); + KUNIT_ASSERT_EQ(test, ret, 0); + + state = drm_kunit_helper_atomic_state_alloc(test, drm, &ctx); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, state); + + crtc_state = drm_atomic_get_crtc_state(state, priv->crtc); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, crtc_state); + + crtc_state->encoder_mask = param->encoder_mask; + + // force modeset + crtc_state->mode_changed = true; + + ret = drm_atomic_helper_check_modeset(drm, state); + KUNIT_ASSERT_EQ(test, ret, param->expected_result); + + drm_modeset_drop_locks(&ctx); + drm_modeset_acquire_fini(&ctx); +} + +static void drm_check_in_clone_mode_desc(const struct drm_clone_mode_test *t, + char *desc) +{ + sprintf(desc, "%s", t->name); +} + +static void drm_check_valid_clones_desc(const struct drm_clone_mode_test *t, + char *desc) +{ + sprintf(desc, "%s", t->name); +} + +static const struct drm_clone_mode_test drm_clone_mode_tests[] = { + { + .name = "in_clone_mode", + .encoder_mask = DRM_TEST_ENC_0 | DRM_TEST_ENC_1, + .expected_result = true, + }, + { + .name = "not_in_clone_mode", + .encoder_mask = DRM_TEST_ENC_0, + .expected_result = false, + }, +}; + +static const struct drm_clone_mode_test drm_valid_clone_mode_tests[] = { + { + .name = "not_in_clone_mode", + .encoder_mask = DRM_TEST_ENC_0, + .expected_result = 0, + }, + + { + .name = "valid_clone", + .encoder_mask = DRM_TEST_ENC_0 | DRM_TEST_ENC_1, + .expected_result = 0, + }, + { + .name = "invalid_clone", + .encoder_mask = DRM_TEST_ENC_0 | DRM_TEST_ENC_2, + .expected_result = -EINVAL, + }, +}; + +KUNIT_ARRAY_PARAM(drm_check_in_clone_mode, drm_clone_mode_tests, + drm_check_in_clone_mode_desc); + +KUNIT_ARRAY_PARAM(drm_check_valid_clones, drm_valid_clone_mode_tests, + drm_check_valid_clones_desc); + +static struct kunit_case drm_test_check_modeset_test[] = { + KUNIT_CASE(drm_test_check_connector_changed_modeset), + {} +}; + +static struct kunit_case drm_in_clone_mode_check_test[] = { + KUNIT_CASE_PARAM(drm_test_check_in_clone_mode, + drm_check_in_clone_mode_gen_params), + KUNIT_CASE_PARAM(drm_test_check_valid_clones, + drm_check_valid_clones_gen_params), + {} +}; + +static struct kunit_suite drm_test_check_modeset_test_suite = { + .name = "drm_validate_modeset", + .test_cases = drm_test_check_modeset_test, +}; + +static struct kunit_suite drm_in_clone_mode_check_test_suite = { + .name = "drm_validate_clone_mode", + .test_cases = drm_in_clone_mode_check_test, +}; + +kunit_test_suites(&drm_in_clone_mode_check_test_suite, + &drm_test_check_modeset_test_suite); + +MODULE_AUTHOR("Jessica Zhang <quic_jesszhan@quicinc.com"); +MODULE_DESCRIPTION("Test cases for the drm_atomic_helper functions"); +MODULE_LICENSE("GPL"); diff --git a/drivers/gpu/drm/tests/drm_atomic_test.c b/drivers/gpu/drm/tests/drm_atomic_test.c new file mode 100644 index 000000000000..ea91bec6569e --- /dev/null +++ b/drivers/gpu/drm/tests/drm_atomic_test.c @@ -0,0 +1,153 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Kunit test for drm_atomic functions + */ +#include <drm/drm_atomic.h> +#include <drm/drm_atomic_state_helper.h> +#include <drm/drm_atomic_uapi.h> +#include <drm/drm_encoder.h> +#include <drm/drm_kunit_helpers.h> +#include <drm/drm_modeset_helper_vtables.h> + +#include <kunit/test.h> + +struct drm_atomic_test_priv { + struct drm_device drm; + struct drm_plane *plane; + struct drm_crtc *crtc; + struct drm_encoder encoder; + struct drm_connector connector; +}; + +static const struct drm_connector_helper_funcs drm_atomic_init_connector_helper_funcs = { +}; + +static const struct drm_connector_funcs drm_atomic_init_connector_funcs = { + .atomic_destroy_state = drm_atomic_helper_connector_destroy_state, + .atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state, + .reset = drm_atomic_helper_connector_reset, +}; + +static struct drm_atomic_test_priv *create_device(struct kunit *test) +{ + struct drm_atomic_test_priv *priv; + struct drm_connector *connector; + struct drm_encoder *enc; + struct drm_device *drm; + struct drm_plane *plane; + struct drm_crtc *crtc; + struct device *dev; + int ret; + + dev = drm_kunit_helper_alloc_device(test); + if (IS_ERR(dev)) + return ERR_CAST(dev); + + priv = drm_kunit_helper_alloc_drm_device(test, dev, + struct drm_atomic_test_priv, drm, + DRIVER_MODESET | DRIVER_ATOMIC); + if (IS_ERR(priv)) + return ERR_CAST(priv); + + drm = &priv->drm; + plane = drm_kunit_helper_create_primary_plane(test, drm, + NULL, + NULL, + NULL, 0, + NULL); + if (IS_ERR(plane)) + return ERR_CAST(plane); + priv->plane = plane; + + crtc = drm_kunit_helper_create_crtc(test, drm, + plane, NULL, + NULL, + NULL); + if (IS_ERR(crtc)) + return ERR_CAST(crtc); + priv->crtc = crtc; + + enc = &priv->encoder; + ret = drmm_encoder_init(drm, enc, NULL, DRM_MODE_ENCODER_TMDS, NULL); + if (ret) + return ERR_PTR(ret); + + enc->possible_crtcs = drm_crtc_mask(crtc); + + connector = &priv->connector; + ret = drmm_connector_init(drm, connector, + &drm_atomic_init_connector_funcs, + DRM_MODE_CONNECTOR_VIRTUAL, + NULL); + if (ret) + return ERR_PTR(ret); + + drm_connector_helper_add(connector, &drm_atomic_init_connector_helper_funcs); + + drm_connector_attach_encoder(connector, enc); + + drm_mode_config_reset(drm); + + return priv; +} + +static void drm_test_drm_atomic_get_connector_for_encoder(struct kunit *test) +{ + struct drm_modeset_acquire_ctx ctx; + struct drm_atomic_test_priv *priv; + struct drm_display_mode *mode; + struct drm_connector *curr_connector; + int ret; + + priv = create_device(test); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, priv); + + mode = drm_kunit_display_mode_from_cea_vic(test, &priv->drm, 16); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, mode); + + drm_modeset_acquire_init(&ctx, 0); + +retry_enable: + ret = drm_kunit_helper_enable_crtc_connector(test, &priv->drm, + priv->crtc, &priv->connector, + mode, &ctx); + if (ret == -EDEADLK) { + drm_modeset_backoff(&ctx); + goto retry_enable; + } + KUNIT_ASSERT_EQ(test, ret, 0); + + drm_modeset_drop_locks(&ctx); + drm_modeset_acquire_fini(&ctx); + + drm_modeset_acquire_init(&ctx, 0); + +retry_conn: + curr_connector = drm_atomic_get_connector_for_encoder(&priv->encoder, + &ctx); + if (PTR_ERR(curr_connector) == -EDEADLK) { + drm_modeset_backoff(&ctx); + goto retry_conn; + } + KUNIT_EXPECT_PTR_EQ(test, curr_connector, &priv->connector); + + drm_modeset_drop_locks(&ctx); + drm_modeset_acquire_fini(&ctx); +} + +static struct kunit_case drm_atomic_get_connector_for_encoder_tests[] = { + KUNIT_CASE(drm_test_drm_atomic_get_connector_for_encoder), + { } +}; + + +static struct kunit_suite drm_atomic_get_connector_for_encoder_test_suite = { + .name = "drm_test_atomic_get_connector_for_encoder", + .test_cases = drm_atomic_get_connector_for_encoder_tests, +}; + +kunit_test_suite(drm_atomic_get_connector_for_encoder_test_suite); + +MODULE_AUTHOR("Maxime Ripard <mripard@kernel.org>"); +MODULE_DESCRIPTION("Kunit test for drm_atomic functions"); +MODULE_LICENSE("GPL"); diff --git a/drivers/gpu/drm/tests/drm_bridge_test.c b/drivers/gpu/drm/tests/drm_bridge_test.c new file mode 100644 index 000000000000..887020141c7f --- /dev/null +++ b/drivers/gpu/drm/tests/drm_bridge_test.c @@ -0,0 +1,521 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Kunit test for drm_bridge functions + */ +#include <drm/drm_atomic_state_helper.h> +#include <drm/drm_bridge.h> +#include <drm/drm_bridge_connector.h> +#include <drm/drm_bridge_helper.h> +#include <drm/drm_kunit_helpers.h> + +#include <kunit/device.h> +#include <kunit/test.h> + +/* + * Mimick the typical "private" struct defined by a bridge driver, which + * embeds a bridge plus other fields. + * + * Having at least one member before @bridge ensures we test non-zero + * @bridge offset. + */ +struct drm_bridge_priv { + unsigned int enable_count; + unsigned int disable_count; + struct drm_bridge bridge; + void *data; +}; + +struct drm_bridge_init_priv { + struct drm_device drm; + /** @dev: device, only for tests not needing a whole drm_device */ + struct device *dev; + struct drm_plane *plane; + struct drm_crtc *crtc; + struct drm_encoder encoder; + struct drm_bridge_priv *test_bridge; + struct drm_connector *connector; + bool destroyed; +}; + +static struct drm_bridge_priv *bridge_to_priv(struct drm_bridge *bridge) +{ + return container_of(bridge, struct drm_bridge_priv, bridge); +} + +static void drm_test_bridge_priv_destroy(struct drm_bridge *bridge) +{ + struct drm_bridge_priv *bridge_priv = bridge_to_priv(bridge); + struct drm_bridge_init_priv *priv = (struct drm_bridge_init_priv *)bridge_priv->data; + + priv->destroyed = true; +} + +static void drm_test_bridge_enable(struct drm_bridge *bridge) +{ + struct drm_bridge_priv *priv = bridge_to_priv(bridge); + + priv->enable_count++; +} + +static void drm_test_bridge_disable(struct drm_bridge *bridge) +{ + struct drm_bridge_priv *priv = bridge_to_priv(bridge); + + priv->disable_count++; +} + +static const struct drm_bridge_funcs drm_test_bridge_legacy_funcs = { + .destroy = drm_test_bridge_priv_destroy, + .enable = drm_test_bridge_enable, + .disable = drm_test_bridge_disable, +}; + +static void drm_test_bridge_atomic_enable(struct drm_bridge *bridge, + struct drm_atomic_state *state) +{ + struct drm_bridge_priv *priv = bridge_to_priv(bridge); + + priv->enable_count++; +} + +static void drm_test_bridge_atomic_disable(struct drm_bridge *bridge, + struct drm_atomic_state *state) +{ + struct drm_bridge_priv *priv = bridge_to_priv(bridge); + + priv->disable_count++; +} + +static const struct drm_bridge_funcs drm_test_bridge_atomic_funcs = { + .destroy = drm_test_bridge_priv_destroy, + .atomic_enable = drm_test_bridge_atomic_enable, + .atomic_disable = drm_test_bridge_atomic_disable, + .atomic_destroy_state = drm_atomic_helper_bridge_destroy_state, + .atomic_duplicate_state = drm_atomic_helper_bridge_duplicate_state, + .atomic_reset = drm_atomic_helper_bridge_reset, +}; + +KUNIT_DEFINE_ACTION_WRAPPER(drm_bridge_remove_wrapper, + drm_bridge_remove, + struct drm_bridge *); + +static int drm_kunit_bridge_add(struct kunit *test, + struct drm_bridge *bridge) +{ + drm_bridge_add(bridge); + + return kunit_add_action_or_reset(test, + drm_bridge_remove_wrapper, + bridge); +} + +static struct drm_bridge_init_priv * +drm_test_bridge_init(struct kunit *test, const struct drm_bridge_funcs *funcs) +{ + struct drm_bridge_init_priv *priv; + struct drm_encoder *enc; + struct drm_bridge *bridge; + struct drm_device *drm; + struct device *dev; + int ret; + + dev = drm_kunit_helper_alloc_device(test); + if (IS_ERR(dev)) + return ERR_CAST(dev); + + priv = drm_kunit_helper_alloc_drm_device(test, dev, + struct drm_bridge_init_priv, drm, + DRIVER_MODESET | DRIVER_ATOMIC); + if (IS_ERR(priv)) + return ERR_CAST(priv); + + priv->test_bridge = devm_drm_bridge_alloc(dev, struct drm_bridge_priv, bridge, funcs); + if (IS_ERR(priv->test_bridge)) + return ERR_CAST(priv->test_bridge); + + priv->test_bridge->data = priv; + + drm = &priv->drm; + priv->plane = drm_kunit_helper_create_primary_plane(test, drm, + NULL, + NULL, + NULL, 0, + NULL); + if (IS_ERR(priv->plane)) + return ERR_CAST(priv->plane); + + priv->crtc = drm_kunit_helper_create_crtc(test, drm, + priv->plane, NULL, + NULL, + NULL); + if (IS_ERR(priv->crtc)) + return ERR_CAST(priv->crtc); + + enc = &priv->encoder; + ret = drmm_encoder_init(drm, enc, NULL, DRM_MODE_ENCODER_TMDS, NULL); + if (ret) + return ERR_PTR(ret); + + enc->possible_crtcs = drm_crtc_mask(priv->crtc); + + bridge = &priv->test_bridge->bridge; + bridge->type = DRM_MODE_CONNECTOR_VIRTUAL; + + ret = drm_kunit_bridge_add(test, bridge); + if (ret) + return ERR_PTR(ret); + + ret = drm_bridge_attach(enc, bridge, NULL, 0); + if (ret) + return ERR_PTR(ret); + + priv->connector = drm_bridge_connector_init(drm, enc); + if (IS_ERR(priv->connector)) + return ERR_CAST(priv->connector); + + drm_connector_attach_encoder(priv->connector, enc); + + drm_mode_config_reset(drm); + + return priv; +} + +/* + * Test that drm_bridge_get_current_state() returns the last committed + * state for an atomic bridge. + */ +static void drm_test_drm_bridge_get_current_state_atomic(struct kunit *test) +{ + struct drm_modeset_acquire_ctx ctx; + struct drm_bridge_init_priv *priv; + struct drm_bridge_state *curr_bridge_state; + struct drm_bridge_state *bridge_state; + struct drm_atomic_state *state; + struct drm_bridge *bridge; + struct drm_device *drm; + int ret; + + priv = drm_test_bridge_init(test, &drm_test_bridge_atomic_funcs); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, priv); + + drm_modeset_acquire_init(&ctx, 0); + + drm = &priv->drm; + state = drm_kunit_helper_atomic_state_alloc(test, drm, &ctx); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, state); + +retry_commit: + bridge = &priv->test_bridge->bridge; + bridge_state = drm_atomic_get_bridge_state(state, bridge); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, bridge_state); + + ret = drm_atomic_commit(state); + if (ret == -EDEADLK) { + drm_atomic_state_clear(state); + drm_modeset_backoff(&ctx); + goto retry_commit; + } + KUNIT_ASSERT_EQ(test, ret, 0); + + drm_modeset_drop_locks(&ctx); + drm_modeset_acquire_fini(&ctx); + + drm_modeset_acquire_init(&ctx, 0); + +retry_state: + ret = drm_modeset_lock(&bridge->base.lock, &ctx); + if (ret == -EDEADLK) { + drm_modeset_backoff(&ctx); + goto retry_state; + } + + curr_bridge_state = drm_bridge_get_current_state(bridge); + KUNIT_EXPECT_PTR_EQ(test, curr_bridge_state, bridge_state); + + drm_modeset_unlock(&bridge->base.lock); + + drm_modeset_drop_locks(&ctx); + drm_modeset_acquire_fini(&ctx); +} + +/* + * Test that drm_bridge_get_current_state() returns NULL for a + * non-atomic bridge. + */ +static void drm_test_drm_bridge_get_current_state_legacy(struct kunit *test) +{ + struct drm_bridge_init_priv *priv; + struct drm_bridge *bridge; + + priv = drm_test_bridge_init(test, &drm_test_bridge_legacy_funcs); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, priv); + + /* + * NOTE: Strictly speaking, we should take the bridge->base.lock + * before calling that function. However, bridge->base is only + * initialized if the bridge is atomic, while we explicitly + * initialize one that isn't there. + * + * In order to avoid unnecessary warnings, let's skip the + * locking. The function would return NULL in all cases anyway, + * so we don't really have any concurrency to worry about. + */ + bridge = &priv->test_bridge->bridge; + KUNIT_EXPECT_NULL(test, drm_bridge_get_current_state(bridge)); +} + +static struct kunit_case drm_bridge_get_current_state_tests[] = { + KUNIT_CASE(drm_test_drm_bridge_get_current_state_atomic), + KUNIT_CASE(drm_test_drm_bridge_get_current_state_legacy), + { } +}; + + +static struct kunit_suite drm_bridge_get_current_state_test_suite = { + .name = "drm_test_bridge_get_current_state", + .test_cases = drm_bridge_get_current_state_tests, +}; + +/* + * Test that an atomic bridge is properly power-cycled when calling + * drm_bridge_helper_reset_crtc(). + */ +static void drm_test_drm_bridge_helper_reset_crtc_atomic(struct kunit *test) +{ + struct drm_modeset_acquire_ctx ctx; + struct drm_bridge_init_priv *priv; + struct drm_display_mode *mode; + struct drm_bridge_priv *bridge_priv; + int ret; + + priv = drm_test_bridge_init(test, &drm_test_bridge_atomic_funcs); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, priv); + + mode = drm_kunit_display_mode_from_cea_vic(test, &priv->drm, 16); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, mode); + + drm_modeset_acquire_init(&ctx, 0); + +retry_commit: + ret = drm_kunit_helper_enable_crtc_connector(test, + &priv->drm, priv->crtc, + priv->connector, + mode, + &ctx); + if (ret == -EDEADLK) { + drm_modeset_backoff(&ctx); + goto retry_commit; + } + KUNIT_ASSERT_EQ(test, ret, 0); + + drm_modeset_drop_locks(&ctx); + drm_modeset_acquire_fini(&ctx); + + bridge_priv = priv->test_bridge; + KUNIT_ASSERT_EQ(test, bridge_priv->enable_count, 1); + KUNIT_ASSERT_EQ(test, bridge_priv->disable_count, 0); + + drm_modeset_acquire_init(&ctx, 0); + +retry_reset: + ret = drm_bridge_helper_reset_crtc(&bridge_priv->bridge, &ctx); + if (ret == -EDEADLK) { + drm_modeset_backoff(&ctx); + goto retry_reset; + } + KUNIT_ASSERT_EQ(test, ret, 0); + + drm_modeset_drop_locks(&ctx); + drm_modeset_acquire_fini(&ctx); + + KUNIT_EXPECT_EQ(test, bridge_priv->enable_count, 2); + KUNIT_EXPECT_EQ(test, bridge_priv->disable_count, 1); +} + +/* + * Test that calling drm_bridge_helper_reset_crtc() on a disabled atomic + * bridge will fail and not call the enable / disable callbacks + */ +static void drm_test_drm_bridge_helper_reset_crtc_atomic_disabled(struct kunit *test) +{ + struct drm_modeset_acquire_ctx ctx; + struct drm_bridge_init_priv *priv; + struct drm_display_mode *mode; + struct drm_bridge_priv *bridge_priv; + int ret; + + priv = drm_test_bridge_init(test, &drm_test_bridge_atomic_funcs); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, priv); + + mode = drm_kunit_display_mode_from_cea_vic(test, &priv->drm, 16); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, mode); + + bridge_priv = priv->test_bridge; + KUNIT_ASSERT_EQ(test, bridge_priv->enable_count, 0); + KUNIT_ASSERT_EQ(test, bridge_priv->disable_count, 0); + + drm_modeset_acquire_init(&ctx, 0); + +retry_reset: + ret = drm_bridge_helper_reset_crtc(&bridge_priv->bridge, &ctx); + if (ret == -EDEADLK) { + drm_modeset_backoff(&ctx); + goto retry_reset; + } + KUNIT_EXPECT_LT(test, ret, 0); + + drm_modeset_drop_locks(&ctx); + drm_modeset_acquire_fini(&ctx); + + KUNIT_EXPECT_EQ(test, bridge_priv->enable_count, 0); + KUNIT_EXPECT_EQ(test, bridge_priv->disable_count, 0); +} + +/* + * Test that a non-atomic bridge is properly power-cycled when calling + * drm_bridge_helper_reset_crtc(). + */ +static void drm_test_drm_bridge_helper_reset_crtc_legacy(struct kunit *test) +{ + struct drm_modeset_acquire_ctx ctx; + struct drm_bridge_init_priv *priv; + struct drm_display_mode *mode; + struct drm_bridge_priv *bridge_priv; + int ret; + + priv = drm_test_bridge_init(test, &drm_test_bridge_legacy_funcs); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, priv); + + mode = drm_kunit_display_mode_from_cea_vic(test, &priv->drm, 16); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, mode); + + drm_modeset_acquire_init(&ctx, 0); + +retry_commit: + ret = drm_kunit_helper_enable_crtc_connector(test, + &priv->drm, priv->crtc, + priv->connector, + mode, + &ctx); + if (ret == -EDEADLK) { + drm_modeset_backoff(&ctx); + goto retry_commit; + } + KUNIT_ASSERT_EQ(test, ret, 0); + + drm_modeset_drop_locks(&ctx); + drm_modeset_acquire_fini(&ctx); + + bridge_priv = priv->test_bridge; + KUNIT_ASSERT_EQ(test, bridge_priv->enable_count, 1); + KUNIT_ASSERT_EQ(test, bridge_priv->disable_count, 0); + + drm_modeset_acquire_init(&ctx, 0); + +retry_reset: + ret = drm_bridge_helper_reset_crtc(&bridge_priv->bridge, &ctx); + if (ret == -EDEADLK) { + drm_modeset_backoff(&ctx); + goto retry_reset; + } + KUNIT_ASSERT_EQ(test, ret, 0); + + drm_modeset_drop_locks(&ctx); + drm_modeset_acquire_fini(&ctx); + + KUNIT_EXPECT_EQ(test, bridge_priv->enable_count, 2); + KUNIT_EXPECT_EQ(test, bridge_priv->disable_count, 1); +} + +static struct kunit_case drm_bridge_helper_reset_crtc_tests[] = { + KUNIT_CASE(drm_test_drm_bridge_helper_reset_crtc_atomic), + KUNIT_CASE(drm_test_drm_bridge_helper_reset_crtc_atomic_disabled), + KUNIT_CASE(drm_test_drm_bridge_helper_reset_crtc_legacy), + { } +}; + +static struct kunit_suite drm_bridge_helper_reset_crtc_test_suite = { + .name = "drm_test_bridge_helper_reset_crtc", + .test_cases = drm_bridge_helper_reset_crtc_tests, +}; + +static int drm_test_bridge_alloc_init(struct kunit *test) +{ + struct drm_bridge_init_priv *priv; + + priv = kunit_kzalloc(test, sizeof(*priv), GFP_KERNEL); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, priv); + + priv->dev = kunit_device_register(test, "drm-bridge-dev"); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, priv->dev); + + test->priv = priv; + + priv->test_bridge = devm_drm_bridge_alloc(priv->dev, struct drm_bridge_priv, bridge, + &drm_test_bridge_atomic_funcs); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, priv->test_bridge); + + priv->test_bridge->data = priv; + + KUNIT_ASSERT_FALSE(test, priv->destroyed); + + return 0; +} + +/* + * Test that a bridge is freed when the device is destroyed in lack of + * other drm_bridge_get/put() operations. + */ +static void drm_test_drm_bridge_alloc_basic(struct kunit *test) +{ + struct drm_bridge_init_priv *priv = test->priv; + + KUNIT_ASSERT_FALSE(test, priv->destroyed); + + kunit_device_unregister(test, priv->dev); + KUNIT_EXPECT_TRUE(test, priv->destroyed); +} + +/* + * Test that a bridge is not freed when the device is destroyed when there + * is still a reference to it, and freed when that reference is put. + */ +static void drm_test_drm_bridge_alloc_get_put(struct kunit *test) +{ + struct drm_bridge_init_priv *priv = test->priv; + + KUNIT_ASSERT_FALSE(test, priv->destroyed); + + drm_bridge_get(&priv->test_bridge->bridge); + KUNIT_EXPECT_FALSE(test, priv->destroyed); + + kunit_device_unregister(test, priv->dev); + KUNIT_EXPECT_FALSE(test, priv->destroyed); + + drm_bridge_put(&priv->test_bridge->bridge); + KUNIT_EXPECT_TRUE(test, priv->destroyed); +} + +static struct kunit_case drm_bridge_alloc_tests[] = { + KUNIT_CASE(drm_test_drm_bridge_alloc_basic), + KUNIT_CASE(drm_test_drm_bridge_alloc_get_put), + { } +}; + +static struct kunit_suite drm_bridge_alloc_test_suite = { + .name = "drm_bridge_alloc", + .init = drm_test_bridge_alloc_init, + .test_cases = drm_bridge_alloc_tests, +}; + +kunit_test_suites( + &drm_bridge_get_current_state_test_suite, + &drm_bridge_helper_reset_crtc_test_suite, + &drm_bridge_alloc_test_suite, +); + +MODULE_AUTHOR("Maxime Ripard <mripard@kernel.org>"); +MODULE_AUTHOR("Luca Ceresoli <luca.ceresoli@bootlin.com>"); + +MODULE_DESCRIPTION("Kunit test for drm_bridge functions"); +MODULE_LICENSE("GPL"); diff --git a/drivers/gpu/drm/tests/drm_buddy_test.c b/drivers/gpu/drm/tests/drm_buddy_test.c index f8ee714df396..5f40b5343bd8 100644 --- a/drivers/gpu/drm/tests/drm_buddy_test.c +++ b/drivers/gpu/drm/tests/drm_buddy_test.c @@ -8,14 +8,12 @@ #include <linux/prime_numbers.h> #include <linux/sched/signal.h> +#include <linux/sizes.h> #include <drm/drm_buddy.h> #include "../lib/drm_random.h" -#define TIMEOUT(name__) \ - unsigned long name__ = jiffies + MAX_SCHEDULE_TIMEOUT - static unsigned int random_seed; static inline u64 get_size(int order, u64 chunk_size) @@ -23,302 +21,583 @@ static inline u64 get_size(int order, u64 chunk_size) return (1 << order) * chunk_size; } -__printf(2, 3) -static bool __timeout(unsigned long timeout, const char *fmt, ...) +static void drm_test_buddy_fragmentation_performance(struct kunit *test) { - va_list va; + struct drm_buddy_block *block, *tmp; + int num_blocks, i, ret, count = 0; + LIST_HEAD(allocated_blocks); + unsigned long elapsed_ms; + LIST_HEAD(reverse_list); + LIST_HEAD(test_blocks); + LIST_HEAD(clear_list); + LIST_HEAD(dirty_list); + LIST_HEAD(free_list); + struct drm_buddy mm; + u64 mm_size = SZ_4G; + ktime_t start, end; - if (!signal_pending(current)) { - cond_resched(); - if (time_before(jiffies, timeout)) - return false; - } + /* + * Allocation under severe fragmentation + * + * Create severe fragmentation by allocating the entire 4 GiB address space + * as tiny 8 KiB blocks but forcing a 64 KiB alignment. The resulting pattern + * leaves many scattered holes. Split the allocations into two groups and + * return them with different flags to block coalescing, then repeatedly + * allocate and free 64 KiB blocks while timing the loop. This stresses how + * quickly the allocator can satisfy larger, aligned requests from a pool of + * highly fragmented space. + */ + KUNIT_ASSERT_FALSE_MSG(test, drm_buddy_init(&mm, mm_size, SZ_4K), + "buddy_init failed\n"); - if (fmt) { - va_start(va, fmt); - vprintk(fmt, va); - va_end(va); + num_blocks = mm_size / SZ_64K; + + start = ktime_get(); + /* Allocate with maximum fragmentation - 8K blocks with 64K alignment */ + for (i = 0; i < num_blocks; i++) + KUNIT_ASSERT_FALSE_MSG(test, drm_buddy_alloc_blocks(&mm, 0, mm_size, SZ_8K, SZ_64K, + &allocated_blocks, 0), + "buddy_alloc hit an error size=%u\n", SZ_8K); + + list_for_each_entry_safe(block, tmp, &allocated_blocks, link) { + if (count % 4 == 0 || count % 4 == 3) + list_move_tail(&block->link, &clear_list); + else + list_move_tail(&block->link, &dirty_list); + count++; } - return true; -} + /* Free with different flags to ensure no coalescing */ + drm_buddy_free_list(&mm, &clear_list, DRM_BUDDY_CLEARED); + drm_buddy_free_list(&mm, &dirty_list, 0); -static void __dump_block(struct kunit *test, struct drm_buddy *mm, - struct drm_buddy_block *block, bool buddy) -{ - kunit_err(test, "block info: header=%llx, state=%u, order=%d, offset=%llx size=%llx root=%d buddy=%d\n", - block->header, drm_buddy_block_state(block), - drm_buddy_block_order(block), drm_buddy_block_offset(block), - drm_buddy_block_size(mm, block), !block->parent, buddy); -} + for (i = 0; i < num_blocks; i++) + KUNIT_ASSERT_FALSE_MSG(test, drm_buddy_alloc_blocks(&mm, 0, mm_size, SZ_64K, SZ_64K, + &test_blocks, 0), + "buddy_alloc hit an error size=%u\n", SZ_64K); + drm_buddy_free_list(&mm, &test_blocks, 0); -static void dump_block(struct kunit *test, struct drm_buddy *mm, - struct drm_buddy_block *block) -{ - struct drm_buddy_block *buddy; + end = ktime_get(); + elapsed_ms = ktime_to_ms(ktime_sub(end, start)); - __dump_block(test, mm, block, false); + kunit_info(test, "Fragmented allocation took %lu ms\n", elapsed_ms); - buddy = drm_get_buddy(block); - if (buddy) - __dump_block(test, mm, buddy, true); -} + drm_buddy_fini(&mm); -static int check_block(struct kunit *test, struct drm_buddy *mm, - struct drm_buddy_block *block) -{ - struct drm_buddy_block *buddy; - unsigned int block_state; - u64 block_size; - u64 offset; - int err = 0; - - block_state = drm_buddy_block_state(block); - - if (block_state != DRM_BUDDY_ALLOCATED && - block_state != DRM_BUDDY_FREE && block_state != DRM_BUDDY_SPLIT) { - kunit_err(test, "block state mismatch\n"); - err = -EINVAL; + /* + * Reverse free order under fragmentation + * + * Construct a fragmented 4 GiB space by allocating every 8 KiB block with + * 64 KiB alignment, creating a dense scatter of small regions. Half of the + * blocks are selectively freed to form sparse gaps, while the remaining + * allocations are preserved, reordered in reverse, and released back with + * the cleared flag. This models a pathological reverse-ordered free pattern + * and measures how quickly the allocator can merge and reclaim space when + * deallocation occurs in the opposite order of allocation, exposing the + * cost difference between a linear freelist scan and an ordered tree lookup. + */ + ret = drm_buddy_init(&mm, mm_size, SZ_4K); + KUNIT_ASSERT_EQ(test, ret, 0); + + start = ktime_get(); + /* Allocate maximum fragmentation */ + for (i = 0; i < num_blocks; i++) + KUNIT_ASSERT_FALSE_MSG(test, drm_buddy_alloc_blocks(&mm, 0, mm_size, SZ_8K, SZ_64K, + &allocated_blocks, 0), + "buddy_alloc hit an error size=%u\n", SZ_8K); + + list_for_each_entry_safe(block, tmp, &allocated_blocks, link) { + if (count % 2 == 0) + list_move_tail(&block->link, &free_list); + count++; } + drm_buddy_free_list(&mm, &free_list, DRM_BUDDY_CLEARED); - block_size = drm_buddy_block_size(mm, block); - offset = drm_buddy_block_offset(block); + list_for_each_entry_safe_reverse(block, tmp, &allocated_blocks, link) + list_move(&block->link, &reverse_list); + drm_buddy_free_list(&mm, &reverse_list, DRM_BUDDY_CLEARED); - if (block_size < mm->chunk_size) { - kunit_err(test, "block size smaller than min size\n"); - err = -EINVAL; - } + end = ktime_get(); + elapsed_ms = ktime_to_ms(ktime_sub(end, start)); - if (!is_power_of_2(block_size)) { - kunit_err(test, "block size not power of two\n"); - err = -EINVAL; - } + kunit_info(test, "Reverse-ordered free took %lu ms\n", elapsed_ms); - if (!IS_ALIGNED(block_size, mm->chunk_size)) { - kunit_err(test, "block size not aligned to min size\n"); - err = -EINVAL; - } + drm_buddy_fini(&mm); +} - if (!IS_ALIGNED(offset, mm->chunk_size)) { - kunit_err(test, "block offset not aligned to min size\n"); - err = -EINVAL; - } +static void drm_test_buddy_alloc_range_bias(struct kunit *test) +{ + u32 mm_size, size, ps, bias_size, bias_start, bias_end, bias_rem; + DRM_RND_STATE(prng, random_seed); + unsigned int i, count, *order; + struct drm_buddy_block *block; + unsigned long flags; + struct drm_buddy mm; + LIST_HEAD(allocated); - if (!IS_ALIGNED(offset, block_size)) { - kunit_err(test, "block offset not aligned to block size\n"); - err = -EINVAL; - } + bias_size = SZ_1M; + ps = roundup_pow_of_two(prandom_u32_state(&prng) % bias_size); + ps = max(SZ_4K, ps); + mm_size = (SZ_8M-1) & ~(ps-1); /* Multiple roots */ - buddy = drm_get_buddy(block); + kunit_info(test, "mm_size=%u, ps=%u\n", mm_size, ps); - if (!buddy && block->parent) { - kunit_err(test, "buddy has gone fishing\n"); - err = -EINVAL; - } + KUNIT_ASSERT_FALSE_MSG(test, drm_buddy_init(&mm, mm_size, ps), + "buddy_init failed\n"); - if (buddy) { - if (drm_buddy_block_offset(buddy) != (offset ^ block_size)) { - kunit_err(test, "buddy has wrong offset\n"); - err = -EINVAL; - } + count = mm_size / bias_size; + order = drm_random_order(count, &prng); + KUNIT_EXPECT_TRUE(test, order); - if (drm_buddy_block_size(mm, buddy) != block_size) { - kunit_err(test, "buddy size mismatch\n"); - err = -EINVAL; - } + /* + * Idea is to split the address space into uniform bias ranges, and then + * in some random order allocate within each bias, using various + * patterns within. This should detect if allocations leak out from a + * given bias, for example. + */ - if (drm_buddy_block_state(buddy) == block_state && - block_state == DRM_BUDDY_FREE) { - kunit_err(test, "block and its buddy are free\n"); - err = -EINVAL; + for (i = 0; i < count; i++) { + LIST_HEAD(tmp); + u32 size; + + bias_start = order[i] * bias_size; + bias_end = bias_start + bias_size; + bias_rem = bias_size; + + /* internal round_up too big */ + KUNIT_ASSERT_TRUE_MSG(test, + drm_buddy_alloc_blocks(&mm, bias_start, + bias_end, bias_size + ps, bias_size, + &allocated, + DRM_BUDDY_RANGE_ALLOCATION), + "buddy_alloc failed with bias(%x-%x), size=%u, ps=%u\n", + bias_start, bias_end, bias_size, bias_size); + + /* size too big */ + KUNIT_ASSERT_TRUE_MSG(test, + drm_buddy_alloc_blocks(&mm, bias_start, + bias_end, bias_size + ps, ps, + &allocated, + DRM_BUDDY_RANGE_ALLOCATION), + "buddy_alloc didn't fail with bias(%x-%x), size=%u, ps=%u\n", + bias_start, bias_end, bias_size + ps, ps); + + /* bias range too small for size */ + KUNIT_ASSERT_TRUE_MSG(test, + drm_buddy_alloc_blocks(&mm, bias_start + ps, + bias_end, bias_size, ps, + &allocated, + DRM_BUDDY_RANGE_ALLOCATION), + "buddy_alloc didn't fail with bias(%x-%x), size=%u, ps=%u\n", + bias_start + ps, bias_end, bias_size, ps); + + /* bias misaligned */ + KUNIT_ASSERT_TRUE_MSG(test, + drm_buddy_alloc_blocks(&mm, bias_start + ps, + bias_end - ps, + bias_size >> 1, bias_size >> 1, + &allocated, + DRM_BUDDY_RANGE_ALLOCATION), + "buddy_alloc h didn't fail with bias(%x-%x), size=%u, ps=%u\n", + bias_start + ps, bias_end - ps, bias_size >> 1, bias_size >> 1); + + /* single big page */ + KUNIT_ASSERT_FALSE_MSG(test, + drm_buddy_alloc_blocks(&mm, bias_start, + bias_end, bias_size, bias_size, + &tmp, + DRM_BUDDY_RANGE_ALLOCATION), + "buddy_alloc i failed with bias(%x-%x), size=%u, ps=%u\n", + bias_start, bias_end, bias_size, bias_size); + drm_buddy_free_list(&mm, &tmp, 0); + + /* single page with internal round_up */ + KUNIT_ASSERT_FALSE_MSG(test, + drm_buddy_alloc_blocks(&mm, bias_start, + bias_end, ps, bias_size, + &tmp, + DRM_BUDDY_RANGE_ALLOCATION), + "buddy_alloc failed with bias(%x-%x), size=%u, ps=%u\n", + bias_start, bias_end, ps, bias_size); + drm_buddy_free_list(&mm, &tmp, 0); + + /* random size within */ + size = max(round_up(prandom_u32_state(&prng) % bias_rem, ps), ps); + if (size) + KUNIT_ASSERT_FALSE_MSG(test, + drm_buddy_alloc_blocks(&mm, bias_start, + bias_end, size, ps, + &tmp, + DRM_BUDDY_RANGE_ALLOCATION), + "buddy_alloc failed with bias(%x-%x), size=%u, ps=%u\n", + bias_start, bias_end, size, ps); + + bias_rem -= size; + /* too big for current avail */ + KUNIT_ASSERT_TRUE_MSG(test, + drm_buddy_alloc_blocks(&mm, bias_start, + bias_end, bias_rem + ps, ps, + &allocated, + DRM_BUDDY_RANGE_ALLOCATION), + "buddy_alloc didn't fail with bias(%x-%x), size=%u, ps=%u\n", + bias_start, bias_end, bias_rem + ps, ps); + + if (bias_rem) { + /* random fill of the remainder */ + size = max(round_up(prandom_u32_state(&prng) % bias_rem, ps), ps); + size = max(size, ps); + + KUNIT_ASSERT_FALSE_MSG(test, + drm_buddy_alloc_blocks(&mm, bias_start, + bias_end, size, ps, + &allocated, + DRM_BUDDY_RANGE_ALLOCATION), + "buddy_alloc failed with bias(%x-%x), size=%u, ps=%u\n", + bias_start, bias_end, size, ps); + /* + * Intentionally allow some space to be left + * unallocated, and ideally not always on the bias + * boundaries. + */ + drm_buddy_free_list(&mm, &tmp, 0); + } else { + list_splice_tail(&tmp, &allocated); } } - return err; -} - -static int check_blocks(struct kunit *test, struct drm_buddy *mm, - struct list_head *blocks, u64 expected_size, bool is_contiguous) -{ - struct drm_buddy_block *block; - struct drm_buddy_block *prev; - u64 total; - int err = 0; - - block = NULL; - prev = NULL; - total = 0; - - list_for_each_entry(block, blocks, link) { - err = check_block(test, mm, block); + kfree(order); + drm_buddy_free_list(&mm, &allocated, 0); + drm_buddy_fini(&mm); - if (!drm_buddy_block_is_allocated(block)) { - kunit_err(test, "block not allocated\n"); - err = -EINVAL; - } + /* + * Something more free-form. Idea is to pick a random starting bias + * range within the address space and then start filling it up. Also + * randomly grow the bias range in both directions as we go along. This + * should give us bias start/end which is not always uniform like above, + * and in some cases will require the allocator to jump over already + * allocated nodes in the middle of the address space. + */ - if (is_contiguous && prev) { - u64 prev_block_size; - u64 prev_offset; - u64 offset; + KUNIT_ASSERT_FALSE_MSG(test, drm_buddy_init(&mm, mm_size, ps), + "buddy_init failed\n"); - prev_offset = drm_buddy_block_offset(prev); - prev_block_size = drm_buddy_block_size(mm, prev); - offset = drm_buddy_block_offset(block); + bias_start = round_up(prandom_u32_state(&prng) % (mm_size - ps), ps); + bias_end = round_up(bias_start + prandom_u32_state(&prng) % (mm_size - bias_start), ps); + bias_end = max(bias_end, bias_start + ps); + bias_rem = bias_end - bias_start; + + do { + u32 size = max(round_up(prandom_u32_state(&prng) % bias_rem, ps), ps); + + KUNIT_ASSERT_FALSE_MSG(test, + drm_buddy_alloc_blocks(&mm, bias_start, + bias_end, size, ps, + &allocated, + DRM_BUDDY_RANGE_ALLOCATION), + "buddy_alloc failed with bias(%x-%x), size=%u, ps=%u\n", + bias_start, bias_end, size, ps); + bias_rem -= size; + + /* + * Try to randomly grow the bias range in both directions, or + * only one, or perhaps don't grow at all. + */ + do { + u32 old_bias_start = bias_start; + u32 old_bias_end = bias_end; + + if (bias_start) + bias_start -= round_up(prandom_u32_state(&prng) % bias_start, ps); + if (bias_end != mm_size) + bias_end += round_up(prandom_u32_state(&prng) % (mm_size - bias_end), ps); + + bias_rem += old_bias_start - bias_start; + bias_rem += bias_end - old_bias_end; + } while (!bias_rem && (bias_start || bias_end != mm_size)); + } while (bias_rem); + + KUNIT_ASSERT_EQ(test, bias_start, 0); + KUNIT_ASSERT_EQ(test, bias_end, mm_size); + KUNIT_ASSERT_TRUE_MSG(test, + drm_buddy_alloc_blocks(&mm, bias_start, bias_end, + ps, ps, + &allocated, + DRM_BUDDY_RANGE_ALLOCATION), + "buddy_alloc passed with bias(%x-%x), size=%u\n", + bias_start, bias_end, ps); + + drm_buddy_free_list(&mm, &allocated, 0); + drm_buddy_fini(&mm); - if (offset != (prev_offset + prev_block_size)) { - kunit_err(test, "block offset mismatch\n"); - err = -EINVAL; - } - } + /* + * Allocate cleared blocks in the bias range when the DRM buddy's clear avail is + * zero. This will validate the bias range allocation in scenarios like system boot + * when no cleared blocks are available and exercise the fallback path too. The resulting + * blocks should always be dirty. + */ - if (err) - break; + KUNIT_ASSERT_FALSE_MSG(test, drm_buddy_init(&mm, mm_size, ps), + "buddy_init failed\n"); - total += drm_buddy_block_size(mm, block); - prev = block; - } + bias_start = round_up(prandom_u32_state(&prng) % (mm_size - ps), ps); + bias_end = round_up(bias_start + prandom_u32_state(&prng) % (mm_size - bias_start), ps); + bias_end = max(bias_end, bias_start + ps); + bias_rem = bias_end - bias_start; - if (!err) { - if (total != expected_size) { - kunit_err(test, "size mismatch, expected=%llx, found=%llx\n", - expected_size, total); - err = -EINVAL; - } - return err; - } + flags = DRM_BUDDY_CLEAR_ALLOCATION | DRM_BUDDY_RANGE_ALLOCATION; + size = max(round_up(prandom_u32_state(&prng) % bias_rem, ps), ps); - if (prev) { - kunit_err(test, "prev block, dump:\n"); - dump_block(test, mm, prev); - } + KUNIT_ASSERT_FALSE_MSG(test, + drm_buddy_alloc_blocks(&mm, bias_start, + bias_end, size, ps, + &allocated, + flags), + "buddy_alloc failed with bias(%x-%x), size=%u, ps=%u\n", + bias_start, bias_end, size, ps); - kunit_err(test, "bad block, dump:\n"); - dump_block(test, mm, block); + list_for_each_entry(block, &allocated, link) + KUNIT_EXPECT_EQ(test, drm_buddy_block_is_clear(block), false); - return err; + drm_buddy_free_list(&mm, &allocated, 0); + drm_buddy_fini(&mm); } -static int check_mm(struct kunit *test, struct drm_buddy *mm) +static void drm_test_buddy_alloc_clear(struct kunit *test) { - struct drm_buddy_block *root; - struct drm_buddy_block *prev; - unsigned int i; - u64 total; - int err = 0; - - if (!mm->n_roots) { - kunit_err(test, "n_roots is zero\n"); - return -EINVAL; - } - - if (mm->n_roots != hweight64(mm->size)) { - kunit_err(test, "n_roots mismatch, n_roots=%u, expected=%lu\n", - mm->n_roots, hweight64(mm->size)); - return -EINVAL; - } + unsigned long n_pages, total, i = 0; + const unsigned long ps = SZ_4K; + struct drm_buddy_block *block; + const int max_order = 12; + LIST_HEAD(allocated); + struct drm_buddy mm; + unsigned int order; + u32 mm_size, size; + LIST_HEAD(dirty); + LIST_HEAD(clean); - root = NULL; - prev = NULL; - total = 0; + mm_size = SZ_4K << max_order; + KUNIT_EXPECT_FALSE(test, drm_buddy_init(&mm, mm_size, ps)); - for (i = 0; i < mm->n_roots; ++i) { - struct drm_buddy_block *block; - unsigned int order; + KUNIT_EXPECT_EQ(test, mm.max_order, max_order); - root = mm->roots[i]; - if (!root) { - kunit_err(test, "root(%u) is NULL\n", i); - err = -EINVAL; - break; + /* + * Idea is to allocate and free some random portion of the address space, + * returning those pages as non-dirty and randomly alternate between + * requesting dirty and non-dirty pages (not going over the limit + * we freed as non-dirty), putting that into two separate lists. + * Loop over both lists at the end checking that the dirty list + * is indeed all dirty pages and vice versa. Free it all again, + * keeping the dirty/clear status. + */ + KUNIT_ASSERT_FALSE_MSG(test, drm_buddy_alloc_blocks(&mm, 0, mm_size, + 5 * ps, ps, &allocated, + DRM_BUDDY_TOPDOWN_ALLOCATION), + "buddy_alloc hit an error size=%lu\n", 5 * ps); + drm_buddy_free_list(&mm, &allocated, DRM_BUDDY_CLEARED); + + n_pages = 10; + do { + unsigned long flags; + struct list_head *list; + int slot = i % 2; + + if (slot == 0) { + list = &dirty; + flags = 0; + } else { + list = &clean; + flags = DRM_BUDDY_CLEAR_ALLOCATION; } - err = check_block(test, mm, root); + KUNIT_ASSERT_FALSE_MSG(test, drm_buddy_alloc_blocks(&mm, 0, mm_size, + ps, ps, list, + flags), + "buddy_alloc hit an error size=%lu\n", ps); + } while (++i < n_pages); - if (!drm_buddy_block_is_free(root)) { - kunit_err(test, "root not free\n"); - err = -EINVAL; - } + list_for_each_entry(block, &clean, link) + KUNIT_EXPECT_EQ(test, drm_buddy_block_is_clear(block), true); - order = drm_buddy_block_order(root); + list_for_each_entry(block, &dirty, link) + KUNIT_EXPECT_EQ(test, drm_buddy_block_is_clear(block), false); - if (!i) { - if (order != mm->max_order) { - kunit_err(test, "max order root missing\n"); - err = -EINVAL; - } - } + drm_buddy_free_list(&mm, &clean, DRM_BUDDY_CLEARED); - if (prev) { - u64 prev_block_size; - u64 prev_offset; - u64 offset; + /* + * Trying to go over the clear limit for some allocation. + * The allocation should never fail with reasonable page-size. + */ + KUNIT_ASSERT_FALSE_MSG(test, drm_buddy_alloc_blocks(&mm, 0, mm_size, + 10 * ps, ps, &clean, + DRM_BUDDY_CLEAR_ALLOCATION), + "buddy_alloc hit an error size=%lu\n", 10 * ps); - prev_offset = drm_buddy_block_offset(prev); - prev_block_size = drm_buddy_block_size(mm, prev); - offset = drm_buddy_block_offset(root); + drm_buddy_free_list(&mm, &clean, DRM_BUDDY_CLEARED); + drm_buddy_free_list(&mm, &dirty, 0); + drm_buddy_fini(&mm); - if (offset != (prev_offset + prev_block_size)) { - kunit_err(test, "root offset mismatch\n"); - err = -EINVAL; - } - } + KUNIT_EXPECT_FALSE(test, drm_buddy_init(&mm, mm_size, ps)); - block = list_first_entry_or_null(&mm->free_list[order], - struct drm_buddy_block, link); - if (block != root) { - kunit_err(test, "root mismatch at order=%u\n", order); - err = -EINVAL; - } + /* + * Create a new mm. Intentionally fragment the address space by creating + * two alternating lists. Free both lists, one as dirty the other as clean. + * Try to allocate double the previous size with matching min_page_size. The + * allocation should never fail as it calls the force_merge. Also check that + * the page is always dirty after force_merge. Free the page as dirty, then + * repeat the whole thing, increment the order until we hit the max_order. + */ - if (err) - break; + i = 0; + n_pages = mm_size / ps; + do { + struct list_head *list; + int slot = i % 2; - prev = root; - total += drm_buddy_block_size(mm, root); - } + if (slot == 0) + list = &dirty; + else + list = &clean; + + KUNIT_ASSERT_FALSE_MSG(test, drm_buddy_alloc_blocks(&mm, 0, mm_size, + ps, ps, list, 0), + "buddy_alloc hit an error size=%lu\n", ps); + } while (++i < n_pages); - if (!err) { - if (total != mm->size) { - kunit_err(test, "expected mm size=%llx, found=%llx\n", - mm->size, total); - err = -EINVAL; + drm_buddy_free_list(&mm, &clean, DRM_BUDDY_CLEARED); + drm_buddy_free_list(&mm, &dirty, 0); + + order = 1; + do { + size = SZ_4K << order; + + KUNIT_ASSERT_FALSE_MSG(test, drm_buddy_alloc_blocks(&mm, 0, mm_size, + size, size, &allocated, + DRM_BUDDY_CLEAR_ALLOCATION), + "buddy_alloc hit an error size=%u\n", size); + total = 0; + list_for_each_entry(block, &allocated, link) { + if (size != mm_size) + KUNIT_EXPECT_EQ(test, drm_buddy_block_is_clear(block), false); + total += drm_buddy_block_size(&mm, block); } - return err; - } + KUNIT_EXPECT_EQ(test, total, size); - if (prev) { - kunit_err(test, "prev root(%u), dump:\n", i - 1); - dump_block(test, mm, prev); - } + drm_buddy_free_list(&mm, &allocated, 0); + } while (++order <= max_order); - if (root) { - kunit_err(test, "bad root(%u), dump:\n", i); - dump_block(test, mm, root); - } + drm_buddy_fini(&mm); - return err; + /* + * Create a new mm with a non power-of-two size. Allocate a random size from each + * root, free as cleared and then call fini. This will ensure the multi-root + * force merge during fini. + */ + mm_size = (SZ_4K << max_order) + (SZ_4K << (max_order - 2)); + + KUNIT_EXPECT_FALSE(test, drm_buddy_init(&mm, mm_size, ps)); + KUNIT_EXPECT_EQ(test, mm.max_order, max_order); + KUNIT_ASSERT_FALSE_MSG(test, drm_buddy_alloc_blocks(&mm, 0, SZ_4K << max_order, + 4 * ps, ps, &allocated, + DRM_BUDDY_RANGE_ALLOCATION), + "buddy_alloc hit an error size=%lu\n", 4 * ps); + drm_buddy_free_list(&mm, &allocated, DRM_BUDDY_CLEARED); + KUNIT_ASSERT_FALSE_MSG(test, drm_buddy_alloc_blocks(&mm, 0, SZ_4K << max_order, + 2 * ps, ps, &allocated, + DRM_BUDDY_CLEAR_ALLOCATION), + "buddy_alloc hit an error size=%lu\n", 2 * ps); + drm_buddy_free_list(&mm, &allocated, DRM_BUDDY_CLEARED); + KUNIT_ASSERT_FALSE_MSG(test, drm_buddy_alloc_blocks(&mm, SZ_4K << max_order, mm_size, + ps, ps, &allocated, + DRM_BUDDY_RANGE_ALLOCATION), + "buddy_alloc hit an error size=%lu\n", ps); + drm_buddy_free_list(&mm, &allocated, DRM_BUDDY_CLEARED); + drm_buddy_fini(&mm); } -static void mm_config(u64 *size, u64 *chunk_size) +static void drm_test_buddy_alloc_contiguous(struct kunit *test) { - DRM_RND_STATE(prng, random_seed); - u32 s, ms; + const unsigned long ps = SZ_4K, mm_size = 16 * 3 * SZ_4K; + unsigned long i, n_pages, total; + struct drm_buddy_block *block; + struct drm_buddy mm; + LIST_HEAD(left); + LIST_HEAD(middle); + LIST_HEAD(right); + LIST_HEAD(allocated); + + KUNIT_EXPECT_FALSE(test, drm_buddy_init(&mm, mm_size, ps)); + + /* + * Idea is to fragment the address space by alternating block + * allocations between three different lists; one for left, middle and + * right. We can then free a list to simulate fragmentation. In + * particular we want to exercise the DRM_BUDDY_CONTIGUOUS_ALLOCATION, + * including the try_harder path. + */ - /* Nothing fancy, just try to get an interesting bit pattern */ + i = 0; + n_pages = mm_size / ps; + do { + struct list_head *list; + int slot = i % 3; + + if (slot == 0) + list = &left; + else if (slot == 1) + list = &middle; + else + list = &right; + KUNIT_ASSERT_FALSE_MSG(test, + drm_buddy_alloc_blocks(&mm, 0, mm_size, + ps, ps, list, 0), + "buddy_alloc hit an error size=%lu\n", + ps); + } while (++i < n_pages); + + KUNIT_ASSERT_TRUE_MSG(test, drm_buddy_alloc_blocks(&mm, 0, mm_size, + 3 * ps, ps, &allocated, + DRM_BUDDY_CONTIGUOUS_ALLOCATION), + "buddy_alloc didn't error size=%lu\n", 3 * ps); + + drm_buddy_free_list(&mm, &middle, 0); + KUNIT_ASSERT_TRUE_MSG(test, drm_buddy_alloc_blocks(&mm, 0, mm_size, + 3 * ps, ps, &allocated, + DRM_BUDDY_CONTIGUOUS_ALLOCATION), + "buddy_alloc didn't error size=%lu\n", 3 * ps); + KUNIT_ASSERT_TRUE_MSG(test, drm_buddy_alloc_blocks(&mm, 0, mm_size, + 2 * ps, ps, &allocated, + DRM_BUDDY_CONTIGUOUS_ALLOCATION), + "buddy_alloc didn't error size=%lu\n", 2 * ps); + + drm_buddy_free_list(&mm, &right, 0); + KUNIT_ASSERT_TRUE_MSG(test, drm_buddy_alloc_blocks(&mm, 0, mm_size, + 3 * ps, ps, &allocated, + DRM_BUDDY_CONTIGUOUS_ALLOCATION), + "buddy_alloc didn't error size=%lu\n", 3 * ps); + /* + * At this point we should have enough contiguous space for 2 blocks, + * however they are never buddies (since we freed middle and right) so + * will require the try_harder logic to find them. + */ + KUNIT_ASSERT_FALSE_MSG(test, drm_buddy_alloc_blocks(&mm, 0, mm_size, + 2 * ps, ps, &allocated, + DRM_BUDDY_CONTIGUOUS_ALLOCATION), + "buddy_alloc hit an error size=%lu\n", 2 * ps); - prandom_seed_state(&prng, random_seed); + drm_buddy_free_list(&mm, &left, 0); + KUNIT_ASSERT_FALSE_MSG(test, drm_buddy_alloc_blocks(&mm, 0, mm_size, + 3 * ps, ps, &allocated, + DRM_BUDDY_CONTIGUOUS_ALLOCATION), + "buddy_alloc hit an error size=%lu\n", 3 * ps); + + total = 0; + list_for_each_entry(block, &allocated, link) + total += drm_buddy_block_size(&mm, block); - /* Let size be a random number of pages up to 8 GB (2M pages) */ - s = 1 + drm_prandom_u32_max_state((BIT(33 - 12)) - 1, &prng); - /* Let the chunk size be a random power of 2 less than size */ - ms = BIT(drm_prandom_u32_max_state(ilog2(s), &prng)); - /* Round size down to the chunk size */ - s &= -ms; + KUNIT_ASSERT_EQ(test, total, ps * 2 + ps * 3); - /* Convert from pages to bytes */ - *chunk_size = (u64)ms << 12; - *size = (u64)s << 12; + drm_buddy_free_list(&mm, &allocated, 0); + drm_buddy_fini(&mm); } static void drm_test_buddy_alloc_pathological(struct kunit *test) @@ -340,8 +619,8 @@ static void drm_test_buddy_alloc_pathological(struct kunit *test) * Eventually we will have a fully 50% fragmented mm. */ - mm_size = PAGE_SIZE << max_order; - KUNIT_ASSERT_FALSE_MSG(test, drm_buddy_init(&mm, mm_size, PAGE_SIZE), + mm_size = SZ_4K << max_order; + KUNIT_ASSERT_FALSE_MSG(test, drm_buddy_init(&mm, mm_size, SZ_4K), "buddy_init failed\n"); KUNIT_EXPECT_EQ(test, mm.max_order, max_order); @@ -355,7 +634,7 @@ static void drm_test_buddy_alloc_pathological(struct kunit *test) } for (order = top; order--;) { - size = get_size(order, PAGE_SIZE); + size = get_size(order, mm.chunk_size); KUNIT_ASSERT_FALSE_MSG(test, drm_buddy_alloc_blocks(&mm, start, mm_size, size, size, &tmp, flags), @@ -369,7 +648,7 @@ static void drm_test_buddy_alloc_pathological(struct kunit *test) } /* There should be one final page for this sub-allocation */ - size = get_size(0, PAGE_SIZE); + size = get_size(0, mm.chunk_size); KUNIT_ASSERT_FALSE_MSG(test, drm_buddy_alloc_blocks(&mm, start, mm_size, size, size, &tmp, flags), "buddy_alloc hit -ENOMEM for hole\n"); @@ -379,18 +658,18 @@ static void drm_test_buddy_alloc_pathological(struct kunit *test) list_move_tail(&block->link, &holes); - size = get_size(top, PAGE_SIZE); + size = get_size(top, mm.chunk_size); KUNIT_ASSERT_TRUE_MSG(test, drm_buddy_alloc_blocks(&mm, start, mm_size, size, size, &tmp, flags), "buddy_alloc unexpectedly succeeded at top-order %d/%d, it should be full!", top, max_order); } - drm_buddy_free_list(&mm, &holes); + drm_buddy_free_list(&mm, &holes, 0); /* Nothing larger than blocks of chunk_size now available */ for (order = 1; order <= max_order; order++) { - size = get_size(order, PAGE_SIZE); + size = get_size(order, mm.chunk_size); KUNIT_ASSERT_TRUE_MSG(test, drm_buddy_alloc_blocks(&mm, start, mm_size, size, size, &tmp, flags), "buddy_alloc unexpectedly succeeded at order %d, it should be full!", @@ -398,97 +677,7 @@ static void drm_test_buddy_alloc_pathological(struct kunit *test) } list_splice_tail(&holes, &blocks); - drm_buddy_free_list(&mm, &blocks); - drm_buddy_fini(&mm); -} - -static void drm_test_buddy_alloc_smoke(struct kunit *test) -{ - u64 mm_size, chunk_size, start = 0; - unsigned long flags = 0; - struct drm_buddy mm; - int *order; - int i; - - DRM_RND_STATE(prng, random_seed); - TIMEOUT(end_time); - - mm_config(&mm_size, &chunk_size); - - KUNIT_ASSERT_FALSE_MSG(test, drm_buddy_init(&mm, mm_size, chunk_size), - "buddy_init failed\n"); - - order = drm_random_order(mm.max_order + 1, &prng); - KUNIT_ASSERT_TRUE(test, order); - - for (i = 0; i <= mm.max_order; ++i) { - struct drm_buddy_block *block; - int max_order = order[i]; - bool timeout = false; - LIST_HEAD(blocks); - u64 total, size; - LIST_HEAD(tmp); - int order, err; - - KUNIT_ASSERT_FALSE_MSG(test, check_mm(test, &mm), - "pre-mm check failed, abort\n"); - - order = max_order; - total = 0; - - do { -retry: - size = get_size(order, chunk_size); - err = drm_buddy_alloc_blocks(&mm, start, mm_size, size, size, &tmp, flags); - if (err) { - if (err == -ENOMEM) { - KUNIT_FAIL(test, "buddy_alloc hit -ENOMEM with order=%d\n", - order); - } else { - if (order--) { - err = 0; - goto retry; - } - - KUNIT_FAIL(test, "buddy_alloc with order=%d failed\n", - order); - } - - break; - } - - block = list_first_entry_or_null(&tmp, struct drm_buddy_block, link); - KUNIT_ASSERT_TRUE_MSG(test, block, "alloc_blocks has no blocks\n"); - - list_move_tail(&block->link, &blocks); - KUNIT_EXPECT_EQ_MSG(test, drm_buddy_block_order(block), order, - "buddy_alloc order mismatch\n"); - - total += drm_buddy_block_size(&mm, block); - - if (__timeout(end_time, NULL)) { - timeout = true; - break; - } - } while (total < mm.size); - - if (!err) - err = check_blocks(test, &mm, &blocks, total, false); - - drm_buddy_free_list(&mm, &blocks); - - if (!err) { - KUNIT_EXPECT_FALSE_MSG(test, check_mm(test, &mm), - "post-mm check failed\n"); - } - - if (err || timeout) - break; - - cond_resched(); - } - - kfree(order); + drm_buddy_free_list(&mm, &blocks, 0); drm_buddy_fini(&mm); } @@ -509,14 +698,14 @@ static void drm_test_buddy_alloc_pessimistic(struct kunit *test) * page left. */ - mm_size = PAGE_SIZE << max_order; - KUNIT_ASSERT_FALSE_MSG(test, drm_buddy_init(&mm, mm_size, PAGE_SIZE), + mm_size = SZ_4K << max_order; + KUNIT_ASSERT_FALSE_MSG(test, drm_buddy_init(&mm, mm_size, SZ_4K), "buddy_init failed\n"); KUNIT_EXPECT_EQ(test, mm.max_order, max_order); for (order = 0; order < max_order; order++) { - size = get_size(order, PAGE_SIZE); + size = get_size(order, mm.chunk_size); KUNIT_ASSERT_FALSE_MSG(test, drm_buddy_alloc_blocks(&mm, start, mm_size, size, size, &tmp, flags), "buddy_alloc hit -ENOMEM with order=%d\n", @@ -529,7 +718,7 @@ static void drm_test_buddy_alloc_pessimistic(struct kunit *test) } /* And now the last remaining block available */ - size = get_size(0, PAGE_SIZE); + size = get_size(0, mm.chunk_size); KUNIT_ASSERT_FALSE_MSG(test, drm_buddy_alloc_blocks(&mm, start, mm_size, size, size, &tmp, flags), "buddy_alloc hit -ENOMEM on final alloc\n"); @@ -541,7 +730,7 @@ static void drm_test_buddy_alloc_pessimistic(struct kunit *test) /* Should be completely full! */ for (order = max_order; order--;) { - size = get_size(order, PAGE_SIZE); + size = get_size(order, mm.chunk_size); KUNIT_ASSERT_TRUE_MSG(test, drm_buddy_alloc_blocks(&mm, start, mm_size, size, size, &tmp, flags), "buddy_alloc unexpectedly succeeded, it should be full!"); @@ -557,7 +746,7 @@ static void drm_test_buddy_alloc_pessimistic(struct kunit *test) list_del(&block->link); drm_buddy_free_block(&mm, block); - size = get_size(order, PAGE_SIZE); + size = get_size(order, mm.chunk_size); KUNIT_ASSERT_FALSE_MSG(test, drm_buddy_alloc_blocks(&mm, start, mm_size, size, size, &tmp, flags), "buddy_alloc hit -ENOMEM with order=%d\n", @@ -572,7 +761,7 @@ static void drm_test_buddy_alloc_pessimistic(struct kunit *test) } /* To confirm, now the whole mm should be available */ - size = get_size(max_order, PAGE_SIZE); + size = get_size(max_order, mm.chunk_size); KUNIT_ASSERT_FALSE_MSG(test, drm_buddy_alloc_blocks(&mm, start, mm_size, size, size, &tmp, flags), "buddy_alloc (realloc) hit -ENOMEM with order=%d\n", @@ -583,7 +772,7 @@ static void drm_test_buddy_alloc_pessimistic(struct kunit *test) list_del(&block->link); drm_buddy_free_block(&mm, block); - drm_buddy_free_list(&mm, &blocks); + drm_buddy_free_list(&mm, &blocks, 0); drm_buddy_fini(&mm); } @@ -603,15 +792,15 @@ static void drm_test_buddy_alloc_optimistic(struct kunit *test) * try to allocate them all. */ - mm_size = PAGE_SIZE * ((1 << (max_order + 1)) - 1); + mm_size = SZ_4K * ((1 << (max_order + 1)) - 1); - KUNIT_ASSERT_FALSE_MSG(test, drm_buddy_init(&mm, mm_size, PAGE_SIZE), + KUNIT_ASSERT_FALSE_MSG(test, drm_buddy_init(&mm, mm_size, SZ_4K), "buddy_init failed\n"); KUNIT_EXPECT_EQ(test, mm.max_order, max_order); for (order = 0; order <= max_order; order++) { - size = get_size(order, PAGE_SIZE); + size = get_size(order, mm.chunk_size); KUNIT_ASSERT_FALSE_MSG(test, drm_buddy_alloc_blocks(&mm, start, mm_size, size, size, &tmp, flags), "buddy_alloc hit -ENOMEM with order=%d\n", @@ -624,70 +813,12 @@ static void drm_test_buddy_alloc_optimistic(struct kunit *test) } /* Should be completely full! */ - size = get_size(0, PAGE_SIZE); + size = get_size(0, mm.chunk_size); KUNIT_ASSERT_TRUE_MSG(test, drm_buddy_alloc_blocks(&mm, start, mm_size, size, size, &tmp, flags), "buddy_alloc unexpectedly succeeded, it should be full!"); - drm_buddy_free_list(&mm, &blocks); - drm_buddy_fini(&mm); -} - -static void drm_test_buddy_alloc_range(struct kunit *test) -{ - unsigned long flags = DRM_BUDDY_RANGE_ALLOCATION; - u64 offset, size, rem, chunk_size, end; - unsigned long page_num; - struct drm_buddy mm; - LIST_HEAD(blocks); - - mm_config(&size, &chunk_size); - - KUNIT_ASSERT_FALSE_MSG(test, drm_buddy_init(&mm, size, chunk_size), - "buddy_init failed"); - - KUNIT_ASSERT_FALSE_MSG(test, check_mm(test, &mm), - "pre-mm check failed, abort!"); - - rem = mm.size; - offset = 0; - - for_each_prime_number_from(page_num, 1, ULONG_MAX - 1) { - struct drm_buddy_block *block; - LIST_HEAD(tmp); - - size = min(page_num * mm.chunk_size, rem); - end = offset + size; - - KUNIT_ASSERT_FALSE_MSG(test, drm_buddy_alloc_blocks(&mm, offset, end, - size, mm.chunk_size, - &tmp, flags), - "alloc_range with offset=%llx, size=%llx failed\n", offset, size); - - block = list_first_entry_or_null(&tmp, struct drm_buddy_block, link); - KUNIT_ASSERT_TRUE_MSG(test, block, "alloc_range has no blocks\n"); - - KUNIT_ASSERT_EQ_MSG(test, drm_buddy_block_offset(block), offset, - "alloc_range start offset mismatch, found=%llx, expected=%llx\n", - drm_buddy_block_offset(block), offset); - - KUNIT_ASSERT_FALSE(test, check_blocks(test, &mm, &tmp, size, true)); - - list_splice_tail(&tmp, &blocks); - - offset += size; - - rem -= size; - if (!rem) - break; - - cond_resched(); - } - - drm_buddy_free_list(&mm, &blocks); - - KUNIT_EXPECT_FALSE_MSG(test, check_mm(test, &mm), "post-mm check failed\n"); - + drm_buddy_free_list(&mm, &blocks, 0); drm_buddy_fini(&mm); } @@ -699,7 +830,7 @@ static void drm_test_buddy_alloc_limit(struct kunit *test) LIST_HEAD(allocated); struct drm_buddy mm; - KUNIT_EXPECT_FALSE(test, drm_buddy_init(&mm, size, PAGE_SIZE)); + KUNIT_EXPECT_FALSE(test, drm_buddy_init(&mm, size, SZ_4K)); KUNIT_EXPECT_EQ_MSG(test, mm.max_order, DRM_BUDDY_MAX_ORDER, "mm.max_order(%d) != %d\n", mm.max_order, @@ -707,7 +838,7 @@ static void drm_test_buddy_alloc_limit(struct kunit *test) size = mm.chunk_size << mm.max_order; KUNIT_EXPECT_FALSE(test, drm_buddy_alloc_blocks(&mm, start, size, size, - PAGE_SIZE, &allocated, flags)); + mm.chunk_size, &allocated, flags)); block = list_first_entry_or_null(&allocated, struct drm_buddy_block, link); KUNIT_EXPECT_TRUE(test, block); @@ -717,12 +848,12 @@ static void drm_test_buddy_alloc_limit(struct kunit *test) drm_buddy_block_order(block), mm.max_order); KUNIT_EXPECT_EQ_MSG(test, drm_buddy_block_size(&mm, block), - BIT_ULL(mm.max_order) * PAGE_SIZE, + BIT_ULL(mm.max_order) * mm.chunk_size, "block size(%llu) != %llu\n", drm_buddy_block_size(&mm, block), - BIT_ULL(mm.max_order) * PAGE_SIZE); + BIT_ULL(mm.max_order) * mm.chunk_size); - drm_buddy_free_list(&mm, &allocated); + drm_buddy_free_list(&mm, &allocated, 0); drm_buddy_fini(&mm); } @@ -731,18 +862,21 @@ static int drm_buddy_suite_init(struct kunit_suite *suite) while (!random_seed) random_seed = get_random_u32(); - kunit_info(suite, "Testing DRM buddy manager, with random_seed=0x%x\n", random_seed); + kunit_info(suite, "Testing DRM buddy manager, with random_seed=0x%x\n", + random_seed); return 0; } static struct kunit_case drm_buddy_tests[] = { KUNIT_CASE(drm_test_buddy_alloc_limit), - KUNIT_CASE(drm_test_buddy_alloc_range), KUNIT_CASE(drm_test_buddy_alloc_optimistic), KUNIT_CASE(drm_test_buddy_alloc_pessimistic), - KUNIT_CASE(drm_test_buddy_alloc_smoke), KUNIT_CASE(drm_test_buddy_alloc_pathological), + KUNIT_CASE(drm_test_buddy_alloc_contiguous), + KUNIT_CASE(drm_test_buddy_alloc_clear), + KUNIT_CASE(drm_test_buddy_alloc_range_bias), + KUNIT_CASE(drm_test_buddy_fragmentation_performance), {} }; @@ -755,4 +889,5 @@ static struct kunit_suite drm_buddy_test_suite = { kunit_test_suite(drm_buddy_test_suite); MODULE_AUTHOR("Intel Corporation"); +MODULE_DESCRIPTION("Kunit test for drm_buddy functions"); MODULE_LICENSE("GPL"); diff --git a/drivers/gpu/drm/tests/drm_client_modeset_test.c b/drivers/gpu/drm/tests/drm_client_modeset_test.c index 416a279b6dae..3f44fe5e92e4 100644 --- a/drivers/gpu/drm/tests/drm_client_modeset_test.c +++ b/drivers/gpu/drm/tests/drm_client_modeset_test.c @@ -82,26 +82,23 @@ static int drm_client_modeset_test_init(struct kunit *test) return 0; } -static void drm_client_modeset_test_exit(struct kunit *test) -{ - struct drm_client_modeset_test_priv *priv = test->priv; - - drm_kunit_helper_free_device(test, priv->dev); -} - static void drm_test_pick_cmdline_res_1920_1080_60(struct kunit *test) { struct drm_client_modeset_test_priv *priv = test->priv; struct drm_device *drm = priv->drm; struct drm_connector *connector = &priv->connector; struct drm_cmdline_mode *cmdline_mode = &connector->cmdline_mode; - struct drm_display_mode *expected_mode, *mode; + struct drm_display_mode *expected_mode; + const struct drm_display_mode *mode; const char *cmdline = "1920x1080@60"; int ret; expected_mode = drm_mode_find_dmt(priv->drm, 1920, 1080, 60, false); KUNIT_ASSERT_NOT_NULL(test, expected_mode); + ret = drm_kunit_add_mode_destroy_action(test, expected_mode); + KUNIT_ASSERT_EQ(test, ret, 0); + KUNIT_ASSERT_TRUE(test, drm_mode_parse_command_line_for_connector(cmdline, connector, @@ -136,7 +133,8 @@ static void drm_test_pick_cmdline_named(struct kunit *test) struct drm_device *drm = priv->drm; struct drm_connector *connector = &priv->connector; struct drm_cmdline_mode *cmdline_mode = &connector->cmdline_mode; - const struct drm_display_mode *expected_mode, *mode; + const struct drm_display_mode *mode; + struct drm_display_mode *expected_mode; const char *cmdline = params->cmdline; int ret; @@ -156,6 +154,9 @@ static void drm_test_pick_cmdline_named(struct kunit *test) expected_mode = params->func(drm); KUNIT_ASSERT_NOT_NULL(test, expected_mode); + ret = drm_kunit_add_mode_destroy_action(test, expected_mode); + KUNIT_ASSERT_EQ(test, ret, 0); + KUNIT_EXPECT_TRUE(test, drm_mode_equal(expected_mode, mode)); } @@ -188,7 +189,6 @@ static struct kunit_case drm_test_pick_cmdline_tests[] = { static struct kunit_suite drm_test_pick_cmdline_test_suite = { .name = "drm_test_pick_cmdline", .init = drm_client_modeset_test_init, - .exit = drm_client_modeset_test_exit, .test_cases = drm_test_pick_cmdline_tests }; diff --git a/drivers/gpu/drm/tests/drm_cmdline_parser_test.c b/drivers/gpu/drm/tests/drm_cmdline_parser_test.c index 88f7f518ffb3..1cfcb597b088 100644 --- a/drivers/gpu/drm/tests/drm_cmdline_parser_test.c +++ b/drivers/gpu/drm/tests/drm_cmdline_parser_test.c @@ -7,6 +7,7 @@ #include <kunit/test.h> #include <drm/drm_connector.h> +#include <drm/drm_kunit_helpers.h> #include <drm/drm_modes.h> static const struct drm_connector no_connector = {}; @@ -955,8 +956,15 @@ struct drm_cmdline_tv_option_test { static void drm_test_cmdline_tv_options(struct kunit *test) { const struct drm_cmdline_tv_option_test *params = test->param_value; - const struct drm_display_mode *expected_mode = params->mode_fn(NULL); + struct drm_display_mode *expected_mode; struct drm_cmdline_mode mode = { }; + int ret; + + expected_mode = params->mode_fn(NULL); + KUNIT_ASSERT_NOT_NULL(test, expected_mode); + + ret = drm_kunit_add_mode_destroy_action(test, expected_mode); + KUNIT_ASSERT_EQ(test, ret, 0); KUNIT_EXPECT_TRUE(test, drm_mode_parse_command_line_for_connector(params->cmdline, &no_connector, &mode)); @@ -992,6 +1000,17 @@ static const struct drm_cmdline_tv_option_test drm_cmdline_tv_option_tests[] = { TV_OPT_TEST(PAL_M, "720x480i,tv_mode=PAL-M", drm_mode_analog_ntsc_480i), TV_OPT_TEST(PAL_N, "720x576i,tv_mode=PAL-N", drm_mode_analog_pal_576i), TV_OPT_TEST(SECAM, "720x576i,tv_mode=SECAM", drm_mode_analog_pal_576i), + { + .name = "MONO_525", + .cmdline = "720x480i,tv_mode=Mono", + .mode_fn = drm_mode_analog_ntsc_480i, + .tv_mode = DRM_MODE_TV_MODE_MONOCHROME, + }, { + .name = "MONO_625", + .cmdline = "720x576i,tv_mode=Mono", + .mode_fn = drm_mode_analog_pal_576i, + .tv_mode = DRM_MODE_TV_MODE_MONOCHROME, + }, }; static void drm_cmdline_tv_option_desc(const struct drm_cmdline_tv_option_test *t, @@ -1056,4 +1075,5 @@ static struct kunit_suite drm_cmdline_parser_test_suite = { kunit_test_suite(drm_cmdline_parser_test_suite); MODULE_AUTHOR("Maxime Ripard <maxime.ripard@bootlin.com>"); +MODULE_DESCRIPTION("Kunit test for drm_cmdline_parser functions"); MODULE_LICENSE("GPL"); diff --git a/drivers/gpu/drm/tests/drm_connector_test.c b/drivers/gpu/drm/tests/drm_connector_test.c index c66aa2dc8d9d..22e2d959eb31 100644 --- a/drivers/gpu/drm/tests/drm_connector_test.c +++ b/drivers/gpu/drm/tests/drm_connector_test.c @@ -3,10 +3,1271 @@ * Kunit test for drm_modes functions */ +#include <linux/i2c.h> + +#include <drm/drm_atomic_state_helper.h> #include <drm/drm_connector.h> +#include <drm/drm_drv.h> +#include <drm/drm_edid.h> +#include <drm/drm_file.h> +#include <drm/drm_kunit_helpers.h> +#include <drm/drm_modes.h> + +#include <drm/display/drm_hdmi_helper.h> #include <kunit/test.h> +#include "../drm_crtc_internal.h" + +struct drm_connector_init_priv { + struct drm_device drm; + struct drm_connector connector; + struct i2c_adapter ddc; +}; + +static const struct drm_connector_hdmi_funcs dummy_hdmi_funcs = { +}; + +static const struct drm_connector_funcs dummy_funcs = { + .atomic_destroy_state = drm_atomic_helper_connector_destroy_state, + .atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state, + .reset = drm_atomic_helper_connector_reset, +}; + +static int dummy_ddc_xfer(struct i2c_adapter *adapter, + struct i2c_msg *msgs, int num) +{ + return num; +} + +static u32 dummy_ddc_func(struct i2c_adapter *adapter) +{ + return I2C_FUNC_I2C | I2C_FUNC_SMBUS_EMUL; +} + +static const struct i2c_algorithm dummy_ddc_algorithm = { + .master_xfer = dummy_ddc_xfer, + .functionality = dummy_ddc_func, +}; + +static void i2c_del_adapter_wrapper(void *ptr) +{ + struct i2c_adapter *adap = ptr; + + i2c_del_adapter(adap); +} + +static int drm_test_connector_init(struct kunit *test) +{ + struct drm_connector_init_priv *priv; + struct device *dev; + int ret; + + dev = drm_kunit_helper_alloc_device(test); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, dev); + + priv = drm_kunit_helper_alloc_drm_device(test, dev, + struct drm_connector_init_priv, drm, + DRIVER_MODESET | DRIVER_ATOMIC); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, priv); + + strscpy(priv->ddc.name, "dummy-connector-ddc", sizeof(priv->ddc.name)); + priv->ddc.owner = THIS_MODULE; + priv->ddc.algo = &dummy_ddc_algorithm; + priv->ddc.dev.parent = dev; + + ret = i2c_add_adapter(&priv->ddc); + KUNIT_ASSERT_EQ(test, ret, 0); + + ret = kunit_add_action_or_reset(test, i2c_del_adapter_wrapper, &priv->ddc); + KUNIT_ASSERT_EQ(test, ret, 0); + + test->priv = priv; + return 0; +} + +/* + * Test that the registration of a bog standard connector works as + * expected and doesn't report any error. + */ +static void drm_test_drmm_connector_init(struct kunit *test) +{ + struct drm_connector_init_priv *priv = test->priv; + int ret; + + ret = drmm_connector_init(&priv->drm, &priv->connector, + &dummy_funcs, + DRM_MODE_CONNECTOR_HDMIA, + &priv->ddc); + KUNIT_EXPECT_EQ(test, ret, 0); +} + +/* + * Test that the registration of a connector without a DDC adapter + * doesn't report any error. + */ +static void drm_test_drmm_connector_init_null_ddc(struct kunit *test) +{ + struct drm_connector_init_priv *priv = test->priv; + int ret; + + ret = drmm_connector_init(&priv->drm, &priv->connector, + &dummy_funcs, + DRM_MODE_CONNECTOR_HDMIA, + NULL); + KUNIT_EXPECT_EQ(test, ret, 0); +} + +/* + * Test that the registration of a connector succeeds for all possible + * connector types. + */ +static void drm_test_drmm_connector_init_type_valid(struct kunit *test) +{ + struct drm_connector_init_priv *priv = test->priv; + unsigned int connector_type = *(unsigned int *)test->param_value; + int ret; + + ret = drmm_connector_init(&priv->drm, &priv->connector, + &dummy_funcs, + connector_type, + &priv->ddc); + KUNIT_EXPECT_EQ(test, ret, 0); +} + +static const unsigned int drm_connector_init_type_valid_tests[] = { + DRM_MODE_CONNECTOR_Unknown, + DRM_MODE_CONNECTOR_VGA, + DRM_MODE_CONNECTOR_DVII, + DRM_MODE_CONNECTOR_DVID, + DRM_MODE_CONNECTOR_DVIA, + DRM_MODE_CONNECTOR_Composite, + DRM_MODE_CONNECTOR_SVIDEO, + DRM_MODE_CONNECTOR_LVDS, + DRM_MODE_CONNECTOR_Component, + DRM_MODE_CONNECTOR_9PinDIN, + DRM_MODE_CONNECTOR_DisplayPort, + DRM_MODE_CONNECTOR_HDMIA, + DRM_MODE_CONNECTOR_HDMIB, + DRM_MODE_CONNECTOR_TV, + DRM_MODE_CONNECTOR_eDP, + DRM_MODE_CONNECTOR_VIRTUAL, + DRM_MODE_CONNECTOR_DSI, + DRM_MODE_CONNECTOR_DPI, + DRM_MODE_CONNECTOR_WRITEBACK, + DRM_MODE_CONNECTOR_SPI, + DRM_MODE_CONNECTOR_USB, +}; + +static void drm_connector_init_type_desc(const unsigned int *type, char *desc) +{ + sprintf(desc, "%s", drm_get_connector_type_name(*type)); +} + +KUNIT_ARRAY_PARAM(drm_connector_init_type_valid, + drm_connector_init_type_valid_tests, + drm_connector_init_type_desc); + +static struct kunit_case drmm_connector_init_tests[] = { + KUNIT_CASE(drm_test_drmm_connector_init), + KUNIT_CASE(drm_test_drmm_connector_init_null_ddc), + KUNIT_CASE_PARAM(drm_test_drmm_connector_init_type_valid, + drm_connector_init_type_valid_gen_params), + { } +}; + +static struct kunit_suite drmm_connector_init_test_suite = { + .name = "drmm_connector_init", + .init = drm_test_connector_init, + .test_cases = drmm_connector_init_tests, +}; + +static const struct drm_connector_funcs dummy_dynamic_init_funcs = { + .atomic_destroy_state = drm_atomic_helper_connector_destroy_state, + .atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state, + .reset = drm_atomic_helper_connector_reset, + .destroy = drm_connector_cleanup, +}; + +/* + * Test that the initialization of a bog standard dynamic connector works + * as expected and doesn't report any error. + */ +static void drm_test_drm_connector_dynamic_init(struct kunit *test) +{ + struct drm_connector_init_priv *priv = test->priv; + struct drm_connector *connector = &priv->connector; + int ret; + + ret = drm_connector_dynamic_init(&priv->drm, connector, + &dummy_dynamic_init_funcs, + DRM_MODE_CONNECTOR_DisplayPort, + &priv->ddc); + KUNIT_ASSERT_EQ(test, ret, 0); +} + +static void drm_test_connector_dynamic_init_cleanup(struct kunit *test) +{ + struct drm_connector_init_priv *priv = test->priv; + struct drm_connector *connector = &priv->connector; + + drm_connector_cleanup(connector); +} + +/* + * Test that the initialization of a dynamic connector without a DDC adapter + * doesn't report any error. + */ +static void drm_test_drm_connector_dynamic_init_null_ddc(struct kunit *test) +{ + struct drm_connector_init_priv *priv = test->priv; + struct drm_connector *connector = &priv->connector; + int ret; + + ret = drm_connector_dynamic_init(&priv->drm, connector, + &dummy_dynamic_init_funcs, + DRM_MODE_CONNECTOR_DisplayPort, + NULL); + KUNIT_ASSERT_EQ(test, ret, 0); +} + +/* + * Test that the initialization of a dynamic connector doesn't add the + * connector to the connector list. + */ +static void drm_test_drm_connector_dynamic_init_not_added(struct kunit *test) +{ + struct drm_connector_init_priv *priv = test->priv; + struct drm_connector *connector = &priv->connector; + int ret; + + ret = drm_connector_dynamic_init(&priv->drm, connector, + &dummy_dynamic_init_funcs, + DRM_MODE_CONNECTOR_DisplayPort, + &priv->ddc); + KUNIT_ASSERT_EQ(test, ret, 0); + KUNIT_ASSERT_PTR_EQ(test, connector->head.next, &connector->head); +} + +static void test_connector_property(struct kunit *test, + struct drm_connector *connector, + const struct drm_property *expected_prop) +{ + struct drm_property *prop; + uint64_t val; + int ret; + + KUNIT_ASSERT_NOT_NULL(test, expected_prop); + prop = drm_mode_obj_find_prop_id(&connector->base, expected_prop->base.id); + KUNIT_ASSERT_PTR_EQ_MSG(test, prop, expected_prop, + "Can't find property %s", expected_prop->name); + + ret = drm_object_property_get_default_value(&connector->base, prop, &val); + KUNIT_EXPECT_EQ(test, ret, 0); + KUNIT_EXPECT_EQ(test, val, 0); + + /* TODO: Check property value in the connector state. */ +} + +/* + * Test that the initialization of a dynamic connector adds all the expected + * properties to it. + */ +static void drm_test_drm_connector_dynamic_init_properties(struct kunit *test) +{ + struct drm_connector_init_priv *priv = test->priv; + struct drm_connector *connector = &priv->connector; + struct drm_mode_config *config = &priv->drm.mode_config; + const struct drm_property *props[] = { + config->edid_property, + config->dpms_property, + config->link_status_property, + config->non_desktop_property, + config->tile_property, + config->prop_crtc_id, + }; + int ret; + int i; + + ret = drm_connector_dynamic_init(&priv->drm, connector, + &dummy_dynamic_init_funcs, + DRM_MODE_CONNECTOR_DisplayPort, + &priv->ddc); + KUNIT_ASSERT_EQ(test, ret, 0); + + for (i = 0; i < ARRAY_SIZE(props); i++) + test_connector_property(test, connector, props[i]); +} + +/* + * Test that the initialization of a dynamic connector succeeds for all + * possible connector types. + */ +static void drm_test_drm_connector_dynamic_init_type_valid(struct kunit *test) +{ + struct drm_connector_init_priv *priv = test->priv; + struct drm_connector *connector = &priv->connector; + unsigned int connector_type = *(unsigned int *)test->param_value; + int ret; + + ret = drm_connector_dynamic_init(&priv->drm, connector, + &dummy_dynamic_init_funcs, + connector_type, + &priv->ddc); + KUNIT_ASSERT_EQ(test, ret, 0); +} + +/* + * Test that the initialization of a dynamic connector sets the expected name + * for it for all possible connector types. + */ +static void drm_test_drm_connector_dynamic_init_name(struct kunit *test) +{ + struct drm_connector_init_priv *priv = test->priv; + struct drm_connector *connector = &priv->connector; + unsigned int connector_type = *(unsigned int *)test->param_value; + char expected_name[128]; + int ret; + + ret = drm_connector_dynamic_init(&priv->drm, connector, + &dummy_dynamic_init_funcs, + connector_type, + &priv->ddc); + KUNIT_ASSERT_EQ(test, ret, 0); + + snprintf(expected_name, sizeof(expected_name), "%s-%d", + drm_get_connector_type_name(connector_type), connector->connector_type_id); + KUNIT_ASSERT_STREQ(test, connector->name, expected_name); +} + +static struct kunit_case drm_connector_dynamic_init_tests[] = { + KUNIT_CASE(drm_test_drm_connector_dynamic_init), + KUNIT_CASE(drm_test_drm_connector_dynamic_init_null_ddc), + KUNIT_CASE(drm_test_drm_connector_dynamic_init_not_added), + KUNIT_CASE(drm_test_drm_connector_dynamic_init_properties), + KUNIT_CASE_PARAM(drm_test_drm_connector_dynamic_init_type_valid, + drm_connector_init_type_valid_gen_params), + KUNIT_CASE_PARAM(drm_test_drm_connector_dynamic_init_name, + drm_connector_init_type_valid_gen_params), + {} +}; + +static struct kunit_suite drm_connector_dynamic_init_test_suite = { + .name = "drm_connector_dynamic_init", + .init = drm_test_connector_init, + .exit = drm_test_connector_dynamic_init_cleanup, + .test_cases = drm_connector_dynamic_init_tests, +}; + +static int drm_test_connector_dynamic_register_early_init(struct kunit *test) +{ + struct drm_connector_init_priv *priv; + int ret; + + ret = drm_test_connector_init(test); + KUNIT_ASSERT_EQ(test, ret, 0); + + priv = test->priv; + + ret = drm_connector_dynamic_init(&priv->drm, &priv->connector, + &dummy_dynamic_init_funcs, + DRM_MODE_CONNECTOR_DisplayPort, + &priv->ddc); + KUNIT_ASSERT_EQ(test, ret, 0); + + return 0; +} + +static void drm_test_connector_dynamic_register_early_cleanup(struct kunit *test) +{ + struct drm_connector_init_priv *priv = test->priv; + struct drm_connector *connector = &priv->connector; + + drm_connector_unregister(connector); + drm_connector_put(connector); +} + +/* + * Test that registration of a dynamic connector adds it to the connector list. + */ +static void drm_test_drm_connector_dynamic_register_early_on_list(struct kunit *test) +{ + struct drm_connector_init_priv *priv = test->priv; + struct drm_connector *connector = &priv->connector; + int ret; + + KUNIT_ASSERT_TRUE(test, list_empty(&connector->head)); + + ret = drm_connector_dynamic_register(connector); + KUNIT_ASSERT_EQ(test, ret, 0); + + KUNIT_ASSERT_PTR_EQ(test, connector->head.next, &priv->drm.mode_config.connector_list); +} + +/* + * Test that the registration of a dynamic connector before the drm device is + * registered results in deferring the connector's user interface registration. + */ +static void drm_test_drm_connector_dynamic_register_early_defer(struct kunit *test) +{ + struct drm_connector_init_priv *priv = test->priv; + struct drm_connector *connector = &priv->connector; + int ret; + + ret = drm_connector_dynamic_register(connector); + KUNIT_ASSERT_EQ(test, ret, 0); + + KUNIT_ASSERT_EQ(test, connector->registration_state, DRM_CONNECTOR_INITIALIZING); +} + +/* + * Test that the registration of a dynamic connector fails, if this is done before + * the connector is initialized. + */ +static void drm_test_drm_connector_dynamic_register_early_no_init(struct kunit *test) +{ + struct drm_connector *connector; + int ret; + + connector = kunit_kzalloc(test, sizeof(*connector), GFP_KERNEL); /* auto freed */ + KUNIT_ASSERT_NOT_NULL(test, connector); + + ret = drm_connector_dynamic_register(connector); + KUNIT_ASSERT_EQ(test, ret, -EINVAL); +} + +/* + * Test that the registration of a dynamic connector before the drm device is + * registered results in deferring adding a mode object for the connector. + */ +static void drm_test_drm_connector_dynamic_register_early_no_mode_object(struct kunit *test) +{ + struct drm_connector_init_priv *priv = test->priv; + struct drm_connector *connector = &priv->connector; + struct drm_connector *tmp_connector; + int ret; + + ret = drm_connector_dynamic_register(&priv->connector); + KUNIT_ASSERT_EQ(test, ret, 0); + + tmp_connector = drm_connector_lookup(connector->dev, NULL, connector->base.id); + KUNIT_ASSERT_NULL(test, tmp_connector); +} + +static struct kunit_case drm_connector_dynamic_register_early_tests[] = { + KUNIT_CASE(drm_test_drm_connector_dynamic_register_early_on_list), + KUNIT_CASE(drm_test_drm_connector_dynamic_register_early_defer), + KUNIT_CASE(drm_test_drm_connector_dynamic_register_early_no_init), + KUNIT_CASE(drm_test_drm_connector_dynamic_register_early_no_mode_object), + { } +}; + +static struct kunit_suite drm_connector_dynamic_register_early_test_suite = { + .name = "drm_connector_dynamic_register_early", + .init = drm_test_connector_dynamic_register_early_init, + .exit = drm_test_connector_dynamic_register_early_cleanup, + .test_cases = drm_connector_dynamic_register_early_tests, +}; + +static int drm_test_connector_dynamic_register_init(struct kunit *test) +{ + struct drm_connector_init_priv *priv; + int ret; + + ret = drm_test_connector_dynamic_register_early_init(test); + KUNIT_ASSERT_EQ(test, ret, 0); + + priv = test->priv; + + ret = drm_dev_register(priv->connector.dev, 0); + KUNIT_ASSERT_EQ(test, ret, 0); + + return 0; +} + +static void drm_test_connector_dynamic_register_cleanup(struct kunit *test) +{ + struct drm_connector_init_priv *priv = test->priv; + struct drm_device *dev = priv->connector.dev; + + drm_connector_unregister(&priv->connector); + drm_connector_put(&priv->connector); + + drm_dev_unregister(dev); + + drm_test_connector_dynamic_register_early_cleanup(test); +} + +static void drm_test_drm_connector_dynamic_register_on_list(struct kunit *test) +{ + struct drm_connector_init_priv *priv = test->priv; + int ret; + + KUNIT_ASSERT_TRUE(test, list_empty(&priv->connector.head)); + + ret = drm_connector_dynamic_register(&priv->connector); + KUNIT_ASSERT_EQ(test, ret, 0); + + KUNIT_ASSERT_PTR_EQ(test, priv->connector.head.next, &priv->drm.mode_config.connector_list); +} + +/* + * Test that the registration of a dynamic connector doesn't get deferred if + * this is done after the drm device is registered. + */ +static void drm_test_drm_connector_dynamic_register_no_defer(struct kunit *test) +{ + struct drm_connector_init_priv *priv = test->priv; + int ret; + + KUNIT_ASSERT_EQ(test, priv->connector.registration_state, DRM_CONNECTOR_INITIALIZING); + + ret = drm_connector_dynamic_register(&priv->connector); + KUNIT_ASSERT_EQ(test, ret, 0); + + KUNIT_ASSERT_EQ(test, priv->connector.registration_state, DRM_CONNECTOR_REGISTERED); +} + +/* + * Test that the registration of a dynamic connector fails if this is done after the + * drm device is registered, but before the connector is initialized. + */ +static void drm_test_drm_connector_dynamic_register_no_init(struct kunit *test) +{ + struct drm_connector *connector; + int ret; + + connector = kunit_kzalloc(test, sizeof(*connector), GFP_KERNEL); /* auto freed */ + KUNIT_ASSERT_NOT_NULL(test, connector); + + ret = drm_connector_dynamic_register(connector); + KUNIT_ASSERT_EQ(test, ret, -EINVAL); +} + +/* + * Test that the registration of a dynamic connector after the drm device is + * registered adds the mode object for the connector. + */ +static void drm_test_drm_connector_dynamic_register_mode_object(struct kunit *test) +{ + struct drm_connector_init_priv *priv = test->priv; + struct drm_connector *connector = &priv->connector; + struct drm_connector *tmp_connector; + int ret; + + tmp_connector = drm_connector_lookup(connector->dev, NULL, connector->base.id); + KUNIT_ASSERT_NULL(test, tmp_connector); + + ret = drm_connector_dynamic_register(&priv->connector); + KUNIT_ASSERT_EQ(test, ret, 0); + + tmp_connector = drm_connector_lookup(connector->dev, NULL, connector->base.id); + KUNIT_ASSERT_PTR_EQ(test, tmp_connector, connector); +} + +/* + * Test that the registration of a dynamic connector after the drm device is + * registered adds the connector to sysfs. + */ +static void drm_test_drm_connector_dynamic_register_sysfs(struct kunit *test) +{ + struct drm_connector_init_priv *priv = test->priv; + struct drm_connector *connector = &priv->connector; + int ret; + + KUNIT_ASSERT_NULL(test, connector->kdev); + + ret = drm_connector_dynamic_register(connector); + KUNIT_ASSERT_EQ(test, ret, 0); + + KUNIT_ASSERT_NOT_NULL(test, connector->kdev); +} + +/* + * Test that the registration of a dynamic connector after the drm device is + * registered sets the connector's sysfs name as expected. + */ +static void drm_test_drm_connector_dynamic_register_sysfs_name(struct kunit *test) +{ + struct drm_connector_init_priv *priv = test->priv; + struct drm_connector *connector = &priv->connector; + char expected_name[128]; + int ret; + + ret = drm_connector_dynamic_register(connector); + KUNIT_ASSERT_EQ(test, ret, 0); + + snprintf(expected_name, sizeof(expected_name), "card%d-%s", + connector->dev->primary->index, connector->name); + + KUNIT_ASSERT_STREQ(test, dev_name(connector->kdev), expected_name); +} + +/* + * Test that the registration of a dynamic connector after the drm device is + * registered adds the connector to debugfs. + */ +static void drm_test_drm_connector_dynamic_register_debugfs(struct kunit *test) +{ + struct drm_connector_init_priv *priv = test->priv; + int ret; + + KUNIT_ASSERT_NULL(test, priv->connector.debugfs_entry); + + ret = drm_connector_dynamic_register(&priv->connector); + KUNIT_ASSERT_EQ(test, ret, 0); + + if (IS_ENABLED(CONFIG_DEBUG_FS)) + KUNIT_ASSERT_NOT_NULL(test, priv->connector.debugfs_entry); + else + KUNIT_ASSERT_NULL(test, priv->connector.debugfs_entry); +} + +static struct kunit_case drm_connector_dynamic_register_tests[] = { + KUNIT_CASE(drm_test_drm_connector_dynamic_register_on_list), + KUNIT_CASE(drm_test_drm_connector_dynamic_register_no_defer), + KUNIT_CASE(drm_test_drm_connector_dynamic_register_no_init), + KUNIT_CASE(drm_test_drm_connector_dynamic_register_mode_object), + KUNIT_CASE(drm_test_drm_connector_dynamic_register_sysfs), + KUNIT_CASE(drm_test_drm_connector_dynamic_register_sysfs_name), + KUNIT_CASE(drm_test_drm_connector_dynamic_register_debugfs), + { } +}; + +static struct kunit_suite drm_connector_dynamic_register_test_suite = { + .name = "drm_connector_dynamic_register", + .init = drm_test_connector_dynamic_register_init, + .exit = drm_test_connector_dynamic_register_cleanup, + .test_cases = drm_connector_dynamic_register_tests, +}; + +/* + * Test that the registration of a bog standard connector works as + * expected and doesn't report any error. + */ +static void drm_test_connector_hdmi_init_valid(struct kunit *test) +{ + struct drm_connector_init_priv *priv = test->priv; + int ret; + + ret = drmm_connector_hdmi_init(&priv->drm, &priv->connector, + "Vendor", "Product", + &dummy_funcs, + &dummy_hdmi_funcs, + DRM_MODE_CONNECTOR_HDMIA, + &priv->ddc, + BIT(HDMI_COLORSPACE_RGB), + 8); + KUNIT_EXPECT_EQ(test, ret, 0); +} + +/* + * Test that the registration of a connector without a DDC adapter + * doesn't report any error. + */ +static void drm_test_connector_hdmi_init_null_ddc(struct kunit *test) +{ + struct drm_connector_init_priv *priv = test->priv; + int ret; + + ret = drmm_connector_hdmi_init(&priv->drm, &priv->connector, + "Vendor", "Product", + &dummy_funcs, + &dummy_hdmi_funcs, + DRM_MODE_CONNECTOR_HDMIA, + NULL, + BIT(HDMI_COLORSPACE_RGB), + 8); + KUNIT_EXPECT_EQ(test, ret, 0); +} + +/* + * Test that the registration of an HDMI connector with a NULL vendor + * fails. + */ +static void drm_test_connector_hdmi_init_null_vendor(struct kunit *test) +{ + struct drm_connector_init_priv *priv = test->priv; + int ret; + + ret = drmm_connector_hdmi_init(&priv->drm, &priv->connector, + NULL, "Product", + &dummy_funcs, + &dummy_hdmi_funcs, + DRM_MODE_CONNECTOR_HDMIA, + &priv->ddc, + BIT(HDMI_COLORSPACE_RGB), + 8); + KUNIT_EXPECT_LT(test, ret, 0); +} + +/* + * Test that the registration of an HDMI connector with a NULL product + * fails. + */ +static void drm_test_connector_hdmi_init_null_product(struct kunit *test) +{ + struct drm_connector_init_priv *priv = test->priv; + int ret; + + ret = drmm_connector_hdmi_init(&priv->drm, &priv->connector, + "Vendor", NULL, + &dummy_funcs, + &dummy_hdmi_funcs, + DRM_MODE_CONNECTOR_HDMIA, + &priv->ddc, + BIT(HDMI_COLORSPACE_RGB), + 8); + KUNIT_EXPECT_LT(test, ret, 0); +} + +/* + * Test that the registration of a connector with a valid, shorter than + * the max length, product name succeeds, and is stored padded with 0. + */ +static void drm_test_connector_hdmi_init_product_valid(struct kunit *test) +{ + struct drm_connector_init_priv *priv = test->priv; + const unsigned char expected_product[DRM_CONNECTOR_HDMI_PRODUCT_LEN] = { + 'P', 'r', 'o', 'd', + }; + const char *product_name = "Prod"; + int ret; + + KUNIT_ASSERT_LT(test, strlen(product_name), DRM_CONNECTOR_HDMI_PRODUCT_LEN); + + ret = drmm_connector_hdmi_init(&priv->drm, &priv->connector, + "Vendor", product_name, + &dummy_funcs, + &dummy_hdmi_funcs, + DRM_MODE_CONNECTOR_HDMIA, + &priv->ddc, + BIT(HDMI_COLORSPACE_RGB), + 8); + KUNIT_EXPECT_EQ(test, ret, 0); + KUNIT_EXPECT_MEMEQ(test, + priv->connector.hdmi.product, + expected_product, + sizeof(priv->connector.hdmi.product)); +} + +/* + * Test that the registration of a connector with a valid, at max + * length, product name succeeds, and is stored padded without any + * trailing \0. + */ +static void drm_test_connector_hdmi_init_product_length_exact(struct kunit *test) +{ + struct drm_connector_init_priv *priv = test->priv; + const unsigned char expected_product[DRM_CONNECTOR_HDMI_PRODUCT_LEN] = { + 'P', 'r', 'o', 'd', 'u', 'c', 't', + 'P', 'r', 'o', 'd', 'u', 'c', 't', + 'P', 'r', + }; + const char *product_name = "ProductProductPr"; + int ret; + + KUNIT_ASSERT_EQ(test, strlen(product_name), DRM_CONNECTOR_HDMI_PRODUCT_LEN); + + ret = drmm_connector_hdmi_init(&priv->drm, &priv->connector, + "Vendor", product_name, + &dummy_funcs, + &dummy_hdmi_funcs, + DRM_MODE_CONNECTOR_HDMIA, + &priv->ddc, + BIT(HDMI_COLORSPACE_RGB), + 8); + KUNIT_EXPECT_EQ(test, ret, 0); + KUNIT_EXPECT_MEMEQ(test, + priv->connector.hdmi.product, + expected_product, + sizeof(priv->connector.hdmi.product)); +} + +/* + * Test that the registration of a connector with a product name larger + * than the maximum length fails. + */ +static void drm_test_connector_hdmi_init_product_length_too_long(struct kunit *test) +{ + struct drm_connector_init_priv *priv = test->priv; + const char *product_name = "ProductProductProduct"; + int ret; + + KUNIT_ASSERT_GT(test, strlen(product_name), DRM_CONNECTOR_HDMI_PRODUCT_LEN); + + ret = drmm_connector_hdmi_init(&priv->drm, &priv->connector, + "Vendor", product_name, + &dummy_funcs, + &dummy_hdmi_funcs, + DRM_MODE_CONNECTOR_HDMIA, + &priv->ddc, + BIT(HDMI_COLORSPACE_RGB), + 8); + KUNIT_EXPECT_LT(test, ret, 0); +} + +/* + * Test that the registration of a connector with a vendor name smaller + * than the maximum length succeeds, and is stored padded with zeros. + */ +static void drm_test_connector_hdmi_init_vendor_valid(struct kunit *test) +{ + struct drm_connector_init_priv *priv = test->priv; + const char expected_vendor[DRM_CONNECTOR_HDMI_VENDOR_LEN] = { + 'V', 'e', 'n', 'd', + }; + const char *vendor_name = "Vend"; + int ret; + + KUNIT_ASSERT_LT(test, strlen(vendor_name), DRM_CONNECTOR_HDMI_VENDOR_LEN); + + ret = drmm_connector_hdmi_init(&priv->drm, &priv->connector, + vendor_name, "Product", + &dummy_funcs, + &dummy_hdmi_funcs, + DRM_MODE_CONNECTOR_HDMIA, + &priv->ddc, + BIT(HDMI_COLORSPACE_RGB), + 8); + KUNIT_EXPECT_EQ(test, ret, 0); + KUNIT_EXPECT_MEMEQ(test, + priv->connector.hdmi.vendor, + expected_vendor, + sizeof(priv->connector.hdmi.vendor)); +} + +/* + * Test that the registration of a connector with a vendor name at the + * maximum length succeeds, and is stored padded without the trailing + * zero. + */ +static void drm_test_connector_hdmi_init_vendor_length_exact(struct kunit *test) +{ + struct drm_connector_init_priv *priv = test->priv; + const char expected_vendor[DRM_CONNECTOR_HDMI_VENDOR_LEN] = { + 'V', 'e', 'n', 'd', 'o', 'r', + 'V', 'e', + }; + const char *vendor_name = "VendorVe"; + int ret; + + KUNIT_ASSERT_EQ(test, strlen(vendor_name), DRM_CONNECTOR_HDMI_VENDOR_LEN); + + ret = drmm_connector_hdmi_init(&priv->drm, &priv->connector, + vendor_name, "Product", + &dummy_funcs, + &dummy_hdmi_funcs, + DRM_MODE_CONNECTOR_HDMIA, + &priv->ddc, + BIT(HDMI_COLORSPACE_RGB), + 8); + KUNIT_EXPECT_EQ(test, ret, 0); + KUNIT_EXPECT_MEMEQ(test, + priv->connector.hdmi.vendor, + expected_vendor, + sizeof(priv->connector.hdmi.vendor)); +} + +/* + * Test that the registration of a connector with a vendor name larger + * than the maximum length fails. + */ +static void drm_test_connector_hdmi_init_vendor_length_too_long(struct kunit *test) +{ + struct drm_connector_init_priv *priv = test->priv; + const char *vendor_name = "VendorVendor"; + int ret; + + KUNIT_ASSERT_GT(test, strlen(vendor_name), DRM_CONNECTOR_HDMI_VENDOR_LEN); + + ret = drmm_connector_hdmi_init(&priv->drm, &priv->connector, + vendor_name, "Product", + &dummy_funcs, + &dummy_hdmi_funcs, + DRM_MODE_CONNECTOR_HDMIA, + &priv->ddc, + BIT(HDMI_COLORSPACE_RGB), + 8); + KUNIT_EXPECT_LT(test, ret, 0); +} + +/* + * Test that the registration of a connector with an invalid maximum bpc + * count fails. + */ +static void drm_test_connector_hdmi_init_bpc_invalid(struct kunit *test) +{ + struct drm_connector_init_priv *priv = test->priv; + int ret; + + ret = drmm_connector_hdmi_init(&priv->drm, &priv->connector, + "Vendor", "Product", + &dummy_funcs, + &dummy_hdmi_funcs, + DRM_MODE_CONNECTOR_HDMIA, + &priv->ddc, + BIT(HDMI_COLORSPACE_RGB), + 9); + KUNIT_EXPECT_LT(test, ret, 0); +} + +/* + * Test that the registration of a connector with a null maximum bpc + * count fails. + */ +static void drm_test_connector_hdmi_init_bpc_null(struct kunit *test) +{ + struct drm_connector_init_priv *priv = test->priv; + int ret; + + ret = drmm_connector_hdmi_init(&priv->drm, &priv->connector, + "Vendor", "Product", + &dummy_funcs, + &dummy_hdmi_funcs, + DRM_MODE_CONNECTOR_HDMIA, + &priv->ddc, + BIT(HDMI_COLORSPACE_RGB), + 0); + KUNIT_EXPECT_LT(test, ret, 0); +} + +/* + * Test that the registration of a connector with a maximum bpc count of + * 8 succeeds, registers the max bpc property, but doesn't register the + * HDR output metadata one. + */ +static void drm_test_connector_hdmi_init_bpc_8(struct kunit *test) +{ + struct drm_connector_init_priv *priv = test->priv; + struct drm_connector_state *state; + struct drm_connector *connector = &priv->connector; + struct drm_property *prop; + uint64_t val; + int ret; + + ret = drmm_connector_hdmi_init(&priv->drm, connector, + "Vendor", "Product", + &dummy_funcs, + &dummy_hdmi_funcs, + DRM_MODE_CONNECTOR_HDMIA, + &priv->ddc, + BIT(HDMI_COLORSPACE_RGB), + 8); + KUNIT_EXPECT_EQ(test, ret, 0); + + prop = connector->max_bpc_property; + KUNIT_ASSERT_NOT_NULL(test, prop); + KUNIT_EXPECT_NOT_NULL(test, drm_mode_obj_find_prop_id(&connector->base, prop->base.id)); + + ret = drm_object_property_get_default_value(&connector->base, prop, &val); + KUNIT_EXPECT_EQ(test, ret, 0); + KUNIT_EXPECT_EQ(test, val, 8); + + state = connector->state; + KUNIT_EXPECT_EQ(test, state->max_bpc, 8); + KUNIT_EXPECT_EQ(test, state->max_requested_bpc, 8); + + prop = priv->drm.mode_config.hdr_output_metadata_property; + KUNIT_ASSERT_NOT_NULL(test, prop); + KUNIT_EXPECT_NULL(test, drm_mode_obj_find_prop_id(&connector->base, prop->base.id)); +} + +/* + * Test that the registration of a connector with a maximum bpc count of + * 10 succeeds and registers the max bpc and HDR output metadata + * properties. + */ +static void drm_test_connector_hdmi_init_bpc_10(struct kunit *test) +{ + struct drm_connector_init_priv *priv = test->priv; + struct drm_connector_state *state; + struct drm_connector *connector = &priv->connector; + struct drm_property *prop; + uint64_t val; + int ret; + + ret = drmm_connector_hdmi_init(&priv->drm, connector, + "Vendor", "Product", + &dummy_funcs, + &dummy_hdmi_funcs, + DRM_MODE_CONNECTOR_HDMIA, + &priv->ddc, + BIT(HDMI_COLORSPACE_RGB), + 10); + KUNIT_EXPECT_EQ(test, ret, 0); + + prop = connector->max_bpc_property; + KUNIT_ASSERT_NOT_NULL(test, prop); + KUNIT_EXPECT_NOT_NULL(test, drm_mode_obj_find_prop_id(&connector->base, prop->base.id)); + + ret = drm_object_property_get_default_value(&connector->base, prop, &val); + KUNIT_EXPECT_EQ(test, ret, 0); + KUNIT_EXPECT_EQ(test, val, 10); + + state = connector->state; + KUNIT_EXPECT_EQ(test, state->max_bpc, 10); + KUNIT_EXPECT_EQ(test, state->max_requested_bpc, 10); + + prop = priv->drm.mode_config.hdr_output_metadata_property; + KUNIT_ASSERT_NOT_NULL(test, prop); + KUNIT_EXPECT_NOT_NULL(test, drm_mode_obj_find_prop_id(&connector->base, prop->base.id)); +} + +/* + * Test that the registration of a connector with a maximum bpc count of + * 12 succeeds and registers the max bpc and HDR output metadata + * properties. + */ +static void drm_test_connector_hdmi_init_bpc_12(struct kunit *test) +{ + struct drm_connector_init_priv *priv = test->priv; + struct drm_connector_state *state; + struct drm_connector *connector = &priv->connector; + struct drm_property *prop; + uint64_t val; + int ret; + + ret = drmm_connector_hdmi_init(&priv->drm, connector, + "Vendor", "Product", + &dummy_funcs, + &dummy_hdmi_funcs, + DRM_MODE_CONNECTOR_HDMIA, + &priv->ddc, + BIT(HDMI_COLORSPACE_RGB), + 12); + KUNIT_EXPECT_EQ(test, ret, 0); + + prop = connector->max_bpc_property; + KUNIT_ASSERT_NOT_NULL(test, prop); + KUNIT_EXPECT_NOT_NULL(test, drm_mode_obj_find_prop_id(&connector->base, prop->base.id)); + + ret = drm_object_property_get_default_value(&connector->base, prop, &val); + KUNIT_EXPECT_EQ(test, ret, 0); + KUNIT_EXPECT_EQ(test, val, 12); + + state = connector->state; + KUNIT_EXPECT_EQ(test, state->max_bpc, 12); + KUNIT_EXPECT_EQ(test, state->max_requested_bpc, 12); + + prop = priv->drm.mode_config.hdr_output_metadata_property; + KUNIT_ASSERT_NOT_NULL(test, prop); + KUNIT_EXPECT_NOT_NULL(test, drm_mode_obj_find_prop_id(&connector->base, prop->base.id)); +} + +/* + * Test that the registration of an HDMI connector with no supported + * format fails. + */ +static void drm_test_connector_hdmi_init_formats_empty(struct kunit *test) +{ + struct drm_connector_init_priv *priv = test->priv; + int ret; + + ret = drmm_connector_hdmi_init(&priv->drm, &priv->connector, + "Vendor", "Product", + &dummy_funcs, + &dummy_hdmi_funcs, + DRM_MODE_CONNECTOR_HDMIA, + &priv->ddc, + 0, + 8); + KUNIT_EXPECT_LT(test, ret, 0); +} + +/* + * Test that the registration of an HDMI connector not listing RGB as a + * supported format fails. + */ +static void drm_test_connector_hdmi_init_formats_no_rgb(struct kunit *test) +{ + struct drm_connector_init_priv *priv = test->priv; + int ret; + + ret = drmm_connector_hdmi_init(&priv->drm, &priv->connector, + "Vendor", "Product", + &dummy_funcs, + &dummy_hdmi_funcs, + DRM_MODE_CONNECTOR_HDMIA, + &priv->ddc, + BIT(HDMI_COLORSPACE_YUV422), + 8); + KUNIT_EXPECT_LT(test, ret, 0); +} + +struct drm_connector_hdmi_init_formats_yuv420_allowed_test { + unsigned long supported_formats; + bool yuv420_allowed; + int expected_result; +}; + +#define YUV420_ALLOWED_TEST(_formats, _allowed, _result) \ + { \ + .supported_formats = BIT(HDMI_COLORSPACE_RGB) | (_formats), \ + .yuv420_allowed = _allowed, \ + .expected_result = _result, \ + } + +static const struct drm_connector_hdmi_init_formats_yuv420_allowed_test +drm_connector_hdmi_init_formats_yuv420_allowed_tests[] = { + YUV420_ALLOWED_TEST(BIT(HDMI_COLORSPACE_YUV420), true, 0), + YUV420_ALLOWED_TEST(BIT(HDMI_COLORSPACE_YUV420), false, -EINVAL), + YUV420_ALLOWED_TEST(BIT(HDMI_COLORSPACE_YUV422), true, -EINVAL), + YUV420_ALLOWED_TEST(BIT(HDMI_COLORSPACE_YUV422), false, 0), +}; + +static void +drm_connector_hdmi_init_formats_yuv420_allowed_desc(const struct drm_connector_hdmi_init_formats_yuv420_allowed_test *t, + char *desc) +{ + sprintf(desc, "supported_formats=0x%lx yuv420_allowed=%d", + t->supported_formats, t->yuv420_allowed); +} + +KUNIT_ARRAY_PARAM(drm_connector_hdmi_init_formats_yuv420_allowed, + drm_connector_hdmi_init_formats_yuv420_allowed_tests, + drm_connector_hdmi_init_formats_yuv420_allowed_desc); + +/* + * Test that the registration of an HDMI connector succeeds only when + * the presence of YUV420 in the supported formats matches the value + * of the ycbcr_420_allowed flag. + */ +static void drm_test_connector_hdmi_init_formats_yuv420_allowed(struct kunit *test) +{ + const struct drm_connector_hdmi_init_formats_yuv420_allowed_test *params; + struct drm_connector_init_priv *priv = test->priv; + int ret; + + params = test->param_value; + priv->connector.ycbcr_420_allowed = params->yuv420_allowed; + + ret = drmm_connector_hdmi_init(&priv->drm, &priv->connector, + "Vendor", "Product", + &dummy_funcs, + &dummy_hdmi_funcs, + DRM_MODE_CONNECTOR_HDMIA, + &priv->ddc, + params->supported_formats, + 8); + KUNIT_EXPECT_EQ(test, ret, params->expected_result); +} + +/* + * Test that the registration of an HDMI connector with an HDMI + * connector type succeeds. + */ +static void drm_test_connector_hdmi_init_type_valid(struct kunit *test) +{ + struct drm_connector_init_priv *priv = test->priv; + unsigned int connector_type = *(unsigned int *)test->param_value; + int ret; + + ret = drmm_connector_hdmi_init(&priv->drm, &priv->connector, + "Vendor", "Product", + &dummy_funcs, + &dummy_hdmi_funcs, + connector_type, + &priv->ddc, + BIT(HDMI_COLORSPACE_RGB), + 8); + KUNIT_EXPECT_EQ(test, ret, 0); +} + +static const unsigned int drm_connector_hdmi_init_type_valid_tests[] = { + DRM_MODE_CONNECTOR_HDMIA, + DRM_MODE_CONNECTOR_HDMIB, +}; + +static void drm_connector_hdmi_init_type_desc(const unsigned int *type, char *desc) +{ + sprintf(desc, "%s", drm_get_connector_type_name(*type)); +} + +KUNIT_ARRAY_PARAM(drm_connector_hdmi_init_type_valid, + drm_connector_hdmi_init_type_valid_tests, + drm_connector_hdmi_init_type_desc); + +/* + * Test that the registration of an HDMI connector with an !HDMI + * connector type fails. + */ +static void drm_test_connector_hdmi_init_type_invalid(struct kunit *test) +{ + struct drm_connector_init_priv *priv = test->priv; + unsigned int connector_type = *(unsigned int *)test->param_value; + int ret; + + ret = drmm_connector_hdmi_init(&priv->drm, &priv->connector, + "Vendor", "Product", + &dummy_funcs, + &dummy_hdmi_funcs, + connector_type, + &priv->ddc, + BIT(HDMI_COLORSPACE_RGB), + 8); + KUNIT_EXPECT_LT(test, ret, 0); +} + +static const unsigned int drm_connector_hdmi_init_type_invalid_tests[] = { + DRM_MODE_CONNECTOR_Unknown, + DRM_MODE_CONNECTOR_VGA, + DRM_MODE_CONNECTOR_DVII, + DRM_MODE_CONNECTOR_DVID, + DRM_MODE_CONNECTOR_DVIA, + DRM_MODE_CONNECTOR_Composite, + DRM_MODE_CONNECTOR_SVIDEO, + DRM_MODE_CONNECTOR_LVDS, + DRM_MODE_CONNECTOR_Component, + DRM_MODE_CONNECTOR_9PinDIN, + DRM_MODE_CONNECTOR_DisplayPort, + DRM_MODE_CONNECTOR_TV, + DRM_MODE_CONNECTOR_eDP, + DRM_MODE_CONNECTOR_VIRTUAL, + DRM_MODE_CONNECTOR_DSI, + DRM_MODE_CONNECTOR_DPI, + DRM_MODE_CONNECTOR_WRITEBACK, + DRM_MODE_CONNECTOR_SPI, + DRM_MODE_CONNECTOR_USB, +}; + +KUNIT_ARRAY_PARAM(drm_connector_hdmi_init_type_invalid, + drm_connector_hdmi_init_type_invalid_tests, + drm_connector_hdmi_init_type_desc); + +static struct kunit_case drmm_connector_hdmi_init_tests[] = { + KUNIT_CASE(drm_test_connector_hdmi_init_valid), + KUNIT_CASE(drm_test_connector_hdmi_init_bpc_8), + KUNIT_CASE(drm_test_connector_hdmi_init_bpc_10), + KUNIT_CASE(drm_test_connector_hdmi_init_bpc_12), + KUNIT_CASE(drm_test_connector_hdmi_init_bpc_invalid), + KUNIT_CASE(drm_test_connector_hdmi_init_bpc_null), + KUNIT_CASE(drm_test_connector_hdmi_init_formats_empty), + KUNIT_CASE(drm_test_connector_hdmi_init_formats_no_rgb), + KUNIT_CASE_PARAM(drm_test_connector_hdmi_init_formats_yuv420_allowed, + drm_connector_hdmi_init_formats_yuv420_allowed_gen_params), + KUNIT_CASE(drm_test_connector_hdmi_init_null_ddc), + KUNIT_CASE(drm_test_connector_hdmi_init_null_product), + KUNIT_CASE(drm_test_connector_hdmi_init_null_vendor), + KUNIT_CASE(drm_test_connector_hdmi_init_product_length_exact), + KUNIT_CASE(drm_test_connector_hdmi_init_product_length_too_long), + KUNIT_CASE(drm_test_connector_hdmi_init_product_valid), + KUNIT_CASE(drm_test_connector_hdmi_init_vendor_length_exact), + KUNIT_CASE(drm_test_connector_hdmi_init_vendor_length_too_long), + KUNIT_CASE(drm_test_connector_hdmi_init_vendor_valid), + KUNIT_CASE_PARAM(drm_test_connector_hdmi_init_type_valid, + drm_connector_hdmi_init_type_valid_gen_params), + KUNIT_CASE_PARAM(drm_test_connector_hdmi_init_type_invalid, + drm_connector_hdmi_init_type_invalid_gen_params), + { } +}; + +static struct kunit_suite drmm_connector_hdmi_init_test_suite = { + .name = "drmm_connector_hdmi_init", + .init = drm_test_connector_init, + .test_cases = drmm_connector_hdmi_init_tests, +}; + struct drm_get_tv_mode_from_name_test { const char *name; enum drm_connector_tv_mode expected_mode; @@ -36,6 +1297,7 @@ struct drm_get_tv_mode_from_name_test drm_get_tv_mode_from_name_valid_tests[] = TV_MODE_NAME("PAL-M", DRM_MODE_TV_MODE_PAL_M), TV_MODE_NAME("PAL-N", DRM_MODE_TV_MODE_PAL_N), TV_MODE_NAME("SECAM", DRM_MODE_TV_MODE_SECAM), + TV_MODE_NAME("Mono", DRM_MODE_TV_MODE_MONOCHROME), }; static void @@ -70,7 +1332,487 @@ static struct kunit_suite drm_get_tv_mode_from_name_test_suite = { .test_cases = drm_get_tv_mode_from_name_tests, }; -kunit_test_suite(drm_get_tv_mode_from_name_test_suite); +struct drm_hdmi_connector_get_broadcast_rgb_name_test { + unsigned int kind; + const char *expected_name; +}; + +#define BROADCAST_RGB_TEST(_kind, _name) \ + { \ + .kind = _kind, \ + .expected_name = _name, \ + } + +static void drm_test_drm_hdmi_connector_get_broadcast_rgb_name(struct kunit *test) +{ + const struct drm_hdmi_connector_get_broadcast_rgb_name_test *params = + test->param_value; + + KUNIT_EXPECT_STREQ(test, + drm_hdmi_connector_get_broadcast_rgb_name(params->kind), + params->expected_name); +} + +static const +struct drm_hdmi_connector_get_broadcast_rgb_name_test +drm_hdmi_connector_get_broadcast_rgb_name_valid_tests[] = { + BROADCAST_RGB_TEST(DRM_HDMI_BROADCAST_RGB_AUTO, "Automatic"), + BROADCAST_RGB_TEST(DRM_HDMI_BROADCAST_RGB_FULL, "Full"), + BROADCAST_RGB_TEST(DRM_HDMI_BROADCAST_RGB_LIMITED, "Limited 16:235"), +}; + +static void +drm_hdmi_connector_get_broadcast_rgb_name_valid_desc(const struct drm_hdmi_connector_get_broadcast_rgb_name_test *t, + char *desc) +{ + sprintf(desc, "%s", t->expected_name); +} + +KUNIT_ARRAY_PARAM(drm_hdmi_connector_get_broadcast_rgb_name_valid, + drm_hdmi_connector_get_broadcast_rgb_name_valid_tests, + drm_hdmi_connector_get_broadcast_rgb_name_valid_desc); + +static void drm_test_drm_hdmi_connector_get_broadcast_rgb_name_invalid(struct kunit *test) +{ + KUNIT_EXPECT_NULL(test, drm_hdmi_connector_get_broadcast_rgb_name(3)); +}; + +static struct kunit_case drm_hdmi_connector_get_broadcast_rgb_name_tests[] = { + KUNIT_CASE_PARAM(drm_test_drm_hdmi_connector_get_broadcast_rgb_name, + drm_hdmi_connector_get_broadcast_rgb_name_valid_gen_params), + KUNIT_CASE(drm_test_drm_hdmi_connector_get_broadcast_rgb_name_invalid), + { } +}; + +static struct kunit_suite drm_hdmi_connector_get_broadcast_rgb_name_test_suite = { + .name = "drm_hdmi_connector_get_broadcast_rgb_name", + .test_cases = drm_hdmi_connector_get_broadcast_rgb_name_tests, +}; + +struct drm_hdmi_connector_get_output_format_name_test { + unsigned int kind; + const char *expected_name; +}; + +#define OUTPUT_FORMAT_TEST(_kind, _name) \ + { \ + .kind = _kind, \ + .expected_name = _name, \ + } + +static void drm_test_drm_hdmi_connector_get_output_format_name(struct kunit *test) +{ + const struct drm_hdmi_connector_get_output_format_name_test *params = + test->param_value; + + KUNIT_EXPECT_STREQ(test, + drm_hdmi_connector_get_output_format_name(params->kind), + params->expected_name); +} + +static const +struct drm_hdmi_connector_get_output_format_name_test +drm_hdmi_connector_get_output_format_name_valid_tests[] = { + OUTPUT_FORMAT_TEST(HDMI_COLORSPACE_RGB, "RGB"), + OUTPUT_FORMAT_TEST(HDMI_COLORSPACE_YUV420, "YUV 4:2:0"), + OUTPUT_FORMAT_TEST(HDMI_COLORSPACE_YUV422, "YUV 4:2:2"), + OUTPUT_FORMAT_TEST(HDMI_COLORSPACE_YUV444, "YUV 4:4:4"), +}; + +static void +drm_hdmi_connector_get_output_format_name_valid_desc(const struct drm_hdmi_connector_get_output_format_name_test *t, + char *desc) +{ + sprintf(desc, "%s", t->expected_name); +} + +KUNIT_ARRAY_PARAM(drm_hdmi_connector_get_output_format_name_valid, + drm_hdmi_connector_get_output_format_name_valid_tests, + drm_hdmi_connector_get_output_format_name_valid_desc); + +static void drm_test_drm_hdmi_connector_get_output_format_name_invalid(struct kunit *test) +{ + KUNIT_EXPECT_NULL(test, drm_hdmi_connector_get_output_format_name(4)); +}; + +static struct kunit_case drm_hdmi_connector_get_output_format_name_tests[] = { + KUNIT_CASE_PARAM(drm_test_drm_hdmi_connector_get_output_format_name, + drm_hdmi_connector_get_output_format_name_valid_gen_params), + KUNIT_CASE(drm_test_drm_hdmi_connector_get_output_format_name_invalid), + { } +}; + +static struct kunit_suite drm_hdmi_connector_get_output_format_name_test_suite = { + .name = "drm_hdmi_connector_get_output_format_name", + .test_cases = drm_hdmi_connector_get_output_format_name_tests, +}; + +static void drm_test_drm_connector_attach_broadcast_rgb_property(struct kunit *test) +{ + struct drm_connector_init_priv *priv = test->priv; + struct drm_connector *connector = &priv->connector; + struct drm_property *prop; + int ret; + + ret = drmm_connector_init(&priv->drm, connector, + &dummy_funcs, + DRM_MODE_CONNECTOR_HDMIA, + &priv->ddc); + KUNIT_ASSERT_EQ(test, ret, 0); + + ret = drm_connector_attach_broadcast_rgb_property(connector); + KUNIT_ASSERT_EQ(test, ret, 0); + + prop = connector->broadcast_rgb_property; + KUNIT_ASSERT_NOT_NULL(test, prop); + KUNIT_EXPECT_NOT_NULL(test, drm_mode_obj_find_prop_id(&connector->base, prop->base.id)); +} + +static void drm_test_drm_connector_attach_broadcast_rgb_property_hdmi_connector(struct kunit *test) +{ + struct drm_connector_init_priv *priv = test->priv; + struct drm_connector *connector = &priv->connector; + struct drm_property *prop; + int ret; + + ret = drmm_connector_hdmi_init(&priv->drm, connector, + "Vendor", "Product", + &dummy_funcs, + &dummy_hdmi_funcs, + DRM_MODE_CONNECTOR_HDMIA, + &priv->ddc, + BIT(HDMI_COLORSPACE_RGB), + 8); + KUNIT_EXPECT_EQ(test, ret, 0); + + ret = drm_connector_attach_broadcast_rgb_property(connector); + KUNIT_ASSERT_EQ(test, ret, 0); + + prop = connector->broadcast_rgb_property; + KUNIT_ASSERT_NOT_NULL(test, prop); + KUNIT_EXPECT_NOT_NULL(test, drm_mode_obj_find_prop_id(&connector->base, prop->base.id)); +} + +static struct kunit_case drm_connector_attach_broadcast_rgb_property_tests[] = { + KUNIT_CASE(drm_test_drm_connector_attach_broadcast_rgb_property), + KUNIT_CASE(drm_test_drm_connector_attach_broadcast_rgb_property_hdmi_connector), + { } +}; + +static struct kunit_suite drm_connector_attach_broadcast_rgb_property_test_suite = { + .name = "drm_connector_attach_broadcast_rgb_property", + .init = drm_test_connector_init, + .test_cases = drm_connector_attach_broadcast_rgb_property_tests, +}; + +/* + * Test that for a given mode, with 8bpc and an RGB output the TMDS + * character rate is equal to the mode pixel clock. + */ +static void drm_test_drm_hdmi_compute_mode_clock_rgb(struct kunit *test) +{ + struct drm_connector_init_priv *priv = test->priv; + const struct drm_display_mode *mode; + unsigned long long rate; + struct drm_device *drm = &priv->drm; + + mode = drm_kunit_display_mode_from_cea_vic(test, drm, 16); + KUNIT_ASSERT_NOT_NULL(test, mode); + + KUNIT_ASSERT_FALSE(test, mode->flags & DRM_MODE_FLAG_DBLCLK); + + rate = drm_hdmi_compute_mode_clock(mode, 8, HDMI_COLORSPACE_RGB); + KUNIT_ASSERT_GT(test, rate, 0); + KUNIT_EXPECT_EQ(test, mode->clock * 1000ULL, rate); +} + +/* + * Test that for a given mode, with 10bpc and an RGB output the TMDS + * character rate is equal to 1.25 times the mode pixel clock. + */ +static void drm_test_drm_hdmi_compute_mode_clock_rgb_10bpc(struct kunit *test) +{ + struct drm_connector_init_priv *priv = test->priv; + const struct drm_display_mode *mode; + unsigned long long rate; + struct drm_device *drm = &priv->drm; + + mode = drm_kunit_display_mode_from_cea_vic(test, drm, 16); + KUNIT_ASSERT_NOT_NULL(test, mode); + + KUNIT_ASSERT_FALSE(test, mode->flags & DRM_MODE_FLAG_DBLCLK); + + rate = drm_hdmi_compute_mode_clock(mode, 10, HDMI_COLORSPACE_RGB); + KUNIT_ASSERT_GT(test, rate, 0); + KUNIT_EXPECT_EQ(test, mode->clock * 1250, rate); +} + +/* + * Test that for the VIC-1 mode, with 10bpc and an RGB output the TMDS + * character rate computation fails. + */ +static void drm_test_drm_hdmi_compute_mode_clock_rgb_10bpc_vic_1(struct kunit *test) +{ + struct drm_connector_init_priv *priv = test->priv; + const struct drm_display_mode *mode; + unsigned long long rate; + struct drm_device *drm = &priv->drm; + + mode = drm_kunit_display_mode_from_cea_vic(test, drm, 1); + KUNIT_ASSERT_NOT_NULL(test, mode); + + rate = drm_hdmi_compute_mode_clock(mode, 10, HDMI_COLORSPACE_RGB); + KUNIT_EXPECT_EQ(test, rate, 0); +} + +/* + * Test that for a given mode, with 12bpc and an RGB output the TMDS + * character rate is equal to 1.5 times the mode pixel clock. + */ +static void drm_test_drm_hdmi_compute_mode_clock_rgb_12bpc(struct kunit *test) +{ + struct drm_connector_init_priv *priv = test->priv; + const struct drm_display_mode *mode; + unsigned long long rate; + struct drm_device *drm = &priv->drm; + + mode = drm_kunit_display_mode_from_cea_vic(test, drm, 16); + KUNIT_ASSERT_NOT_NULL(test, mode); + + KUNIT_ASSERT_FALSE(test, mode->flags & DRM_MODE_FLAG_DBLCLK); + + rate = drm_hdmi_compute_mode_clock(mode, 12, HDMI_COLORSPACE_RGB); + KUNIT_ASSERT_GT(test, rate, 0); + KUNIT_EXPECT_EQ(test, mode->clock * 1500, rate); +} + +/* + * Test that for the VIC-1 mode, with 12bpc and an RGB output the TMDS + * character rate computation fails. + */ +static void drm_test_drm_hdmi_compute_mode_clock_rgb_12bpc_vic_1(struct kunit *test) +{ + struct drm_connector_init_priv *priv = test->priv; + const struct drm_display_mode *mode; + unsigned long long rate; + struct drm_device *drm = &priv->drm; + + mode = drm_kunit_display_mode_from_cea_vic(test, drm, 1); + KUNIT_ASSERT_NOT_NULL(test, mode); + + rate = drm_hdmi_compute_mode_clock(mode, 12, HDMI_COLORSPACE_RGB); + KUNIT_EXPECT_EQ(test, rate, 0); +} + +/* + * Test that for a mode with the pixel repetition flag, the TMDS + * character rate is indeed double the mode pixel clock. + */ +static void drm_test_drm_hdmi_compute_mode_clock_rgb_double(struct kunit *test) +{ + struct drm_connector_init_priv *priv = test->priv; + const struct drm_display_mode *mode; + unsigned long long rate; + struct drm_device *drm = &priv->drm; + + mode = drm_kunit_display_mode_from_cea_vic(test, drm, 6); + KUNIT_ASSERT_NOT_NULL(test, mode); + + KUNIT_ASSERT_TRUE(test, mode->flags & DRM_MODE_FLAG_DBLCLK); + + rate = drm_hdmi_compute_mode_clock(mode, 8, HDMI_COLORSPACE_RGB); + KUNIT_ASSERT_GT(test, rate, 0); + KUNIT_EXPECT_EQ(test, (mode->clock * 1000ULL) * 2, rate); +} + +/* + * Test that the TMDS character rate computation for the VIC modes + * explicitly listed in the spec as supporting YUV420 succeed and return + * half the mode pixel clock. + */ +static void drm_test_connector_hdmi_compute_mode_clock_yuv420_valid(struct kunit *test) +{ + struct drm_connector_init_priv *priv = test->priv; + const struct drm_display_mode *mode; + struct drm_device *drm = &priv->drm; + unsigned long long rate; + unsigned int vic = *(unsigned int *)test->param_value; + + mode = drm_kunit_display_mode_from_cea_vic(test, drm, vic); + KUNIT_ASSERT_NOT_NULL(test, mode); + + KUNIT_ASSERT_FALSE(test, mode->flags & DRM_MODE_FLAG_DBLCLK); + + rate = drm_hdmi_compute_mode_clock(mode, 8, HDMI_COLORSPACE_YUV420); + KUNIT_ASSERT_GT(test, rate, 0); + KUNIT_EXPECT_EQ(test, (mode->clock * 1000ULL) / 2, rate); +} + +static const unsigned int drm_hdmi_compute_mode_clock_yuv420_vic_valid_tests[] = { + 96, 97, 101, 102, 106, 107, +}; + +static void drm_hdmi_compute_mode_clock_yuv420_vic_desc(const unsigned int *vic, char *desc) +{ + sprintf(desc, "VIC %u", *vic); +} + +KUNIT_ARRAY_PARAM(drm_hdmi_compute_mode_clock_yuv420_valid, + drm_hdmi_compute_mode_clock_yuv420_vic_valid_tests, + drm_hdmi_compute_mode_clock_yuv420_vic_desc); + +/* + * Test that for a given mode listed supporting it and an YUV420 output + * with 10bpc, the TMDS character rate is equal to 0.625 times the mode + * pixel clock. + */ +static void drm_test_connector_hdmi_compute_mode_clock_yuv420_10_bpc(struct kunit *test) +{ + struct drm_connector_init_priv *priv = test->priv; + const struct drm_display_mode *mode; + struct drm_device *drm = &priv->drm; + unsigned int vic = + drm_hdmi_compute_mode_clock_yuv420_vic_valid_tests[0]; + unsigned long long rate; + + mode = drm_kunit_display_mode_from_cea_vic(test, drm, vic); + KUNIT_ASSERT_NOT_NULL(test, mode); + + KUNIT_ASSERT_FALSE(test, mode->flags & DRM_MODE_FLAG_DBLCLK); + + rate = drm_hdmi_compute_mode_clock(mode, 10, HDMI_COLORSPACE_YUV420); + KUNIT_ASSERT_GT(test, rate, 0); + + KUNIT_EXPECT_EQ(test, mode->clock * 625, rate); +} + +/* + * Test that for a given mode listed supporting it and an YUV420 output + * with 12bpc, the TMDS character rate is equal to 0.75 times the mode + * pixel clock. + */ +static void drm_test_connector_hdmi_compute_mode_clock_yuv420_12_bpc(struct kunit *test) +{ + struct drm_connector_init_priv *priv = test->priv; + const struct drm_display_mode *mode; + struct drm_device *drm = &priv->drm; + unsigned int vic = + drm_hdmi_compute_mode_clock_yuv420_vic_valid_tests[0]; + unsigned long long rate; + + mode = drm_kunit_display_mode_from_cea_vic(test, drm, vic); + KUNIT_ASSERT_NOT_NULL(test, mode); + + KUNIT_ASSERT_FALSE(test, mode->flags & DRM_MODE_FLAG_DBLCLK); + + rate = drm_hdmi_compute_mode_clock(mode, 12, HDMI_COLORSPACE_YUV420); + KUNIT_ASSERT_GT(test, rate, 0); + + KUNIT_EXPECT_EQ(test, mode->clock * 750, rate); +} + +/* + * Test that for a given mode, the computation of the TMDS character + * rate with 8bpc and a YUV422 output succeeds and returns a rate equal + * to the mode pixel clock. + */ +static void drm_test_connector_hdmi_compute_mode_clock_yuv422_8_bpc(struct kunit *test) +{ + struct drm_connector_init_priv *priv = test->priv; + const struct drm_display_mode *mode; + struct drm_device *drm = &priv->drm; + unsigned long long rate; + + mode = drm_kunit_display_mode_from_cea_vic(test, drm, 16); + KUNIT_ASSERT_NOT_NULL(test, mode); + + KUNIT_ASSERT_FALSE(test, mode->flags & DRM_MODE_FLAG_DBLCLK); + + rate = drm_hdmi_compute_mode_clock(mode, 8, HDMI_COLORSPACE_YUV422); + KUNIT_ASSERT_GT(test, rate, 0); + KUNIT_EXPECT_EQ(test, mode->clock * 1000, rate); +} + +/* + * Test that for a given mode, the computation of the TMDS character + * rate with 10bpc and a YUV422 output succeeds and returns a rate equal + * to the mode pixel clock. + */ +static void drm_test_connector_hdmi_compute_mode_clock_yuv422_10_bpc(struct kunit *test) +{ + struct drm_connector_init_priv *priv = test->priv; + const struct drm_display_mode *mode; + struct drm_device *drm = &priv->drm; + unsigned long long rate; + + mode = drm_kunit_display_mode_from_cea_vic(test, drm, 16); + KUNIT_ASSERT_NOT_NULL(test, mode); + + KUNIT_ASSERT_FALSE(test, mode->flags & DRM_MODE_FLAG_DBLCLK); + + rate = drm_hdmi_compute_mode_clock(mode, 10, HDMI_COLORSPACE_YUV422); + KUNIT_ASSERT_GT(test, rate, 0); + KUNIT_EXPECT_EQ(test, mode->clock * 1000, rate); +} + +/* + * Test that for a given mode, the computation of the TMDS character + * rate with 12bpc and a YUV422 output succeeds and returns a rate equal + * to the mode pixel clock. + */ +static void drm_test_connector_hdmi_compute_mode_clock_yuv422_12_bpc(struct kunit *test) +{ + struct drm_connector_init_priv *priv = test->priv; + const struct drm_display_mode *mode; + struct drm_device *drm = &priv->drm; + unsigned long long rate; + + mode = drm_kunit_display_mode_from_cea_vic(test, drm, 16); + KUNIT_ASSERT_NOT_NULL(test, mode); + + KUNIT_ASSERT_FALSE(test, mode->flags & DRM_MODE_FLAG_DBLCLK); + + rate = drm_hdmi_compute_mode_clock(mode, 12, HDMI_COLORSPACE_YUV422); + KUNIT_ASSERT_GT(test, rate, 0); + KUNIT_EXPECT_EQ(test, mode->clock * 1000, rate); +} + +static struct kunit_case drm_hdmi_compute_mode_clock_tests[] = { + KUNIT_CASE(drm_test_drm_hdmi_compute_mode_clock_rgb), + KUNIT_CASE(drm_test_drm_hdmi_compute_mode_clock_rgb_10bpc), + KUNIT_CASE(drm_test_drm_hdmi_compute_mode_clock_rgb_10bpc_vic_1), + KUNIT_CASE(drm_test_drm_hdmi_compute_mode_clock_rgb_12bpc), + KUNIT_CASE(drm_test_drm_hdmi_compute_mode_clock_rgb_12bpc_vic_1), + KUNIT_CASE(drm_test_drm_hdmi_compute_mode_clock_rgb_double), + KUNIT_CASE_PARAM(drm_test_connector_hdmi_compute_mode_clock_yuv420_valid, + drm_hdmi_compute_mode_clock_yuv420_valid_gen_params), + KUNIT_CASE(drm_test_connector_hdmi_compute_mode_clock_yuv420_10_bpc), + KUNIT_CASE(drm_test_connector_hdmi_compute_mode_clock_yuv420_12_bpc), + KUNIT_CASE(drm_test_connector_hdmi_compute_mode_clock_yuv422_8_bpc), + KUNIT_CASE(drm_test_connector_hdmi_compute_mode_clock_yuv422_10_bpc), + KUNIT_CASE(drm_test_connector_hdmi_compute_mode_clock_yuv422_12_bpc), + { } +}; + +static struct kunit_suite drm_hdmi_compute_mode_clock_test_suite = { + .name = "drm_test_connector_hdmi_compute_mode_clock", + .init = drm_test_connector_init, + .test_cases = drm_hdmi_compute_mode_clock_tests, +}; + +kunit_test_suites( + &drmm_connector_hdmi_init_test_suite, + &drmm_connector_init_test_suite, + &drm_connector_dynamic_init_test_suite, + &drm_connector_dynamic_register_early_test_suite, + &drm_connector_dynamic_register_test_suite, + &drm_connector_attach_broadcast_rgb_property_test_suite, + &drm_get_tv_mode_from_name_test_suite, + &drm_hdmi_compute_mode_clock_test_suite, + &drm_hdmi_connector_get_broadcast_rgb_name_test_suite, + &drm_hdmi_connector_get_output_format_name_test_suite +); MODULE_AUTHOR("Maxime Ripard <maxime@cerno.tech>"); +MODULE_DESCRIPTION("Kunit test for drm_modes functions"); MODULE_LICENSE("GPL"); diff --git a/drivers/gpu/drm/tests/drm_damage_helper_test.c b/drivers/gpu/drm/tests/drm_damage_helper_test.c index 115034fc3421..0df2e1a54b0d 100644 --- a/drivers/gpu/drm/tests/drm_damage_helper_test.c +++ b/drivers/gpu/drm/tests/drm_damage_helper_test.c @@ -636,4 +636,5 @@ static struct kunit_suite drm_damage_helper_test_suite = { kunit_test_suite(drm_damage_helper_test_suite); +MODULE_DESCRIPTION("Test case for drm_damage_helper functions"); MODULE_LICENSE("GPL"); diff --git a/drivers/gpu/drm/tests/drm_dp_mst_helper_test.c b/drivers/gpu/drm/tests/drm_dp_mst_helper_test.c index 545beea33e8c..9e0e2fb65944 100644 --- a/drivers/gpu/drm/tests/drm_dp_mst_helper_test.c +++ b/drivers/gpu/drm/tests/drm_dp_mst_helper_test.c @@ -42,13 +42,13 @@ static const struct drm_dp_mst_calc_pbn_mode_test drm_dp_mst_calc_pbn_mode_cases .clock = 332880, .bpp = 24, .dsc = true, - .expected = 50 + .expected = 1191 }, { .clock = 324540, .bpp = 24, .dsc = true, - .expected = 49 + .expected = 1161 }, }; @@ -56,7 +56,7 @@ static void drm_test_dp_mst_calc_pbn_mode(struct kunit *test) { const struct drm_dp_mst_calc_pbn_mode_test *params = test->param_value; - KUNIT_EXPECT_EQ(test, drm_dp_calc_pbn_mode(params->clock, params->bpp, params->dsc), + KUNIT_EXPECT_EQ(test, drm_dp_calc_pbn_mode(params->clock, params->bpp << 4), params->expected); } @@ -68,6 +68,150 @@ static void dp_mst_calc_pbn_mode_desc(const struct drm_dp_mst_calc_pbn_mode_test KUNIT_ARRAY_PARAM(drm_dp_mst_calc_pbn_mode, drm_dp_mst_calc_pbn_mode_cases, dp_mst_calc_pbn_mode_desc); +struct drm_dp_mst_calc_pbn_div_test { + int link_rate; + int lane_count; + fixed20_12 expected; +}; + +#define fp_init(__int, __frac) { \ + .full = (__int) * (1 << 12) + \ + (__frac) * (1 << 12) / 100000 \ +} + +static const struct drm_dp_mst_calc_pbn_div_test drm_dp_mst_calc_pbn_div_dp1_4_cases[] = { + /* + * UHBR rates (DP Standard v2.1 2.7.6.3, specifying the rounded to + * closest value to 2 decimal places): + * .expected = .link_rate * .lane_count * 0.9671 / 8 / 54 / 100 + * DP1.4 rates (DP Standard v2.1 2.6.4.2): + * .expected = .link_rate * .lane_count * 0.8000 / 8 / 54 / 100 + * + * truncated to 5 decimal places. + */ + { + .link_rate = 2000000, + .lane_count = 4, + .expected = fp_init(179, 9259), /* 179.09259 */ + }, + { + .link_rate = 2000000, + .lane_count = 2, + .expected = fp_init(89, 54629), + }, + { + .link_rate = 2000000, + .lane_count = 1, + .expected = fp_init(44, 77314), + }, + { + .link_rate = 1350000, + .lane_count = 4, + .expected = fp_init(120, 88750), + }, + { + .link_rate = 1350000, + .lane_count = 2, + .expected = fp_init(60, 44375), + }, + { + .link_rate = 1350000, + .lane_count = 1, + .expected = fp_init(30, 22187), + }, + { + .link_rate = 1000000, + .lane_count = 4, + .expected = fp_init(89, 54629), + }, + { + .link_rate = 1000000, + .lane_count = 2, + .expected = fp_init(44, 77314), + }, + { + .link_rate = 1000000, + .lane_count = 1, + .expected = fp_init(22, 38657), + }, + { + .link_rate = 810000, + .lane_count = 4, + .expected = fp_init(60, 0), + }, + { + .link_rate = 810000, + .lane_count = 2, + .expected = fp_init(30, 0), + }, + { + .link_rate = 810000, + .lane_count = 1, + .expected = fp_init(15, 0), + }, + { + .link_rate = 540000, + .lane_count = 4, + .expected = fp_init(40, 0), + }, + { + .link_rate = 540000, + .lane_count = 2, + .expected = fp_init(20, 0), + }, + { + .link_rate = 540000, + .lane_count = 1, + .expected = fp_init(10, 0), + }, + { + .link_rate = 270000, + .lane_count = 4, + .expected = fp_init(20, 0), + }, + { + .link_rate = 270000, + .lane_count = 2, + .expected = fp_init(10, 0), + }, + { + .link_rate = 270000, + .lane_count = 1, + .expected = fp_init(5, 0), + }, + { + .link_rate = 162000, + .lane_count = 4, + .expected = fp_init(12, 0), + }, + { + .link_rate = 162000, + .lane_count = 2, + .expected = fp_init(6, 0), + }, + { + .link_rate = 162000, + .lane_count = 1, + .expected = fp_init(3, 0), + }, +}; + +static void drm_test_dp_mst_calc_pbn_div(struct kunit *test) +{ + const struct drm_dp_mst_calc_pbn_div_test *params = test->param_value; + + KUNIT_EXPECT_EQ(test, drm_dp_get_vc_payload_bw(params->link_rate, params->lane_count).full, + params->expected.full); +} + +static void dp_mst_calc_pbn_div_desc(const struct drm_dp_mst_calc_pbn_div_test *t, char *desc) +{ + sprintf(desc, "Link rate %d lane count %d", t->link_rate, t->lane_count); +} + +KUNIT_ARRAY_PARAM(drm_dp_mst_calc_pbn_div, drm_dp_mst_calc_pbn_div_dp1_4_cases, + dp_mst_calc_pbn_div_desc); + static u8 data[] = { 0xff, 0x00, 0xdd }; struct drm_dp_mst_sideband_msg_req_test { @@ -416,6 +560,7 @@ KUNIT_ARRAY_PARAM(drm_dp_mst_sideband_msg_req, drm_dp_mst_sideband_msg_req_cases static struct kunit_case drm_dp_mst_helper_tests[] = { KUNIT_CASE_PARAM(drm_test_dp_mst_calc_pbn_mode, drm_dp_mst_calc_pbn_mode_gen_params), + KUNIT_CASE_PARAM(drm_test_dp_mst_calc_pbn_div, drm_dp_mst_calc_pbn_div_gen_params), KUNIT_CASE_PARAM(drm_test_dp_mst_sideband_msg_req_decode, drm_dp_mst_sideband_msg_req_gen_params), { } @@ -428,4 +573,5 @@ static struct kunit_suite drm_dp_mst_helper_test_suite = { kunit_test_suite(drm_dp_mst_helper_test_suite); +MODULE_DESCRIPTION("Test cases for the DRM DP MST helpers"); MODULE_LICENSE("GPL"); diff --git a/drivers/gpu/drm/tests/drm_exec_test.c b/drivers/gpu/drm/tests/drm_exec_test.c new file mode 100644 index 000000000000..3a20c788c51f --- /dev/null +++ b/drivers/gpu/drm/tests/drm_exec_test.c @@ -0,0 +1,222 @@ +// SPDX-License-Identifier: MIT +/* + * Copyright 2022 Advanced Micro Devices, Inc. + */ + +#define pr_fmt(fmt) "drm_exec: " fmt + +#include <kunit/test.h> + +#include <linux/module.h> +#include <linux/prime_numbers.h> + +#include <drm/drm_exec.h> +#include <drm/drm_device.h> +#include <drm/drm_drv.h> +#include <drm/drm_gem.h> +#include <drm/drm_kunit_helpers.h> + +#include "../lib/drm_random.h" + +struct drm_exec_priv { + struct device *dev; + struct drm_device *drm; +}; + +static int drm_exec_test_init(struct kunit *test) +{ + struct drm_exec_priv *priv; + + priv = kunit_kzalloc(test, sizeof(*priv), GFP_KERNEL); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, priv); + + test->priv = priv; + + priv->dev = drm_kunit_helper_alloc_device(test); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, priv->dev); + + priv->drm = __drm_kunit_helper_alloc_drm_device(test, priv->dev, sizeof(*priv->drm), 0, + DRIVER_MODESET); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, priv->drm); + + return 0; +} + +static void sanitycheck(struct kunit *test) +{ + struct drm_exec exec; + + drm_exec_init(&exec, DRM_EXEC_INTERRUPTIBLE_WAIT, 0); + drm_exec_fini(&exec); + KUNIT_SUCCEED(test); +} + +static void test_lock(struct kunit *test) +{ + struct drm_exec_priv *priv = test->priv; + struct drm_gem_object gobj = { }; + struct drm_exec exec; + int ret; + + drm_gem_private_object_init(priv->drm, &gobj, PAGE_SIZE); + + drm_exec_init(&exec, DRM_EXEC_INTERRUPTIBLE_WAIT, 0); + drm_exec_until_all_locked(&exec) { + ret = drm_exec_lock_obj(&exec, &gobj); + drm_exec_retry_on_contention(&exec); + KUNIT_EXPECT_EQ(test, ret, 0); + if (ret) + break; + } + drm_exec_fini(&exec); +} + +static void test_lock_unlock(struct kunit *test) +{ + struct drm_exec_priv *priv = test->priv; + struct drm_gem_object gobj = { }; + struct drm_exec exec; + int ret; + + drm_gem_private_object_init(priv->drm, &gobj, PAGE_SIZE); + + drm_exec_init(&exec, DRM_EXEC_INTERRUPTIBLE_WAIT, 0); + drm_exec_until_all_locked(&exec) { + ret = drm_exec_lock_obj(&exec, &gobj); + drm_exec_retry_on_contention(&exec); + KUNIT_EXPECT_EQ(test, ret, 0); + if (ret) + break; + + drm_exec_unlock_obj(&exec, &gobj); + ret = drm_exec_lock_obj(&exec, &gobj); + drm_exec_retry_on_contention(&exec); + KUNIT_EXPECT_EQ(test, ret, 0); + if (ret) + break; + } + drm_exec_fini(&exec); +} + +static void test_duplicates(struct kunit *test) +{ + struct drm_exec_priv *priv = test->priv; + struct drm_gem_object gobj = { }; + struct drm_exec exec; + int ret; + + drm_gem_private_object_init(priv->drm, &gobj, PAGE_SIZE); + + drm_exec_init(&exec, DRM_EXEC_IGNORE_DUPLICATES, 0); + drm_exec_until_all_locked(&exec) { + ret = drm_exec_lock_obj(&exec, &gobj); + drm_exec_retry_on_contention(&exec); + KUNIT_EXPECT_EQ(test, ret, 0); + if (ret) + break; + + ret = drm_exec_lock_obj(&exec, &gobj); + drm_exec_retry_on_contention(&exec); + KUNIT_EXPECT_EQ(test, ret, 0); + if (ret) + break; + } + drm_exec_unlock_obj(&exec, &gobj); + drm_exec_fini(&exec); +} + +static void test_prepare(struct kunit *test) +{ + struct drm_exec_priv *priv = test->priv; + struct drm_gem_object gobj = { }; + struct drm_exec exec; + int ret; + + drm_gem_private_object_init(priv->drm, &gobj, PAGE_SIZE); + + drm_exec_init(&exec, DRM_EXEC_INTERRUPTIBLE_WAIT, 0); + drm_exec_until_all_locked(&exec) { + ret = drm_exec_prepare_obj(&exec, &gobj, 1); + drm_exec_retry_on_contention(&exec); + KUNIT_EXPECT_EQ(test, ret, 0); + if (ret) + break; + } + drm_exec_fini(&exec); + + drm_gem_private_object_fini(&gobj); +} + +static void test_prepare_array(struct kunit *test) +{ + struct drm_exec_priv *priv = test->priv; + struct drm_gem_object *gobj1; + struct drm_gem_object *gobj2; + struct drm_gem_object *array[] = { + (gobj1 = kunit_kzalloc(test, sizeof(*gobj1), GFP_KERNEL)), + (gobj2 = kunit_kzalloc(test, sizeof(*gobj2), GFP_KERNEL)), + }; + struct drm_exec exec; + int ret; + + if (!gobj1 || !gobj2) { + KUNIT_FAIL(test, "Failed to allocate GEM objects.\n"); + return; + } + + drm_gem_private_object_init(priv->drm, gobj1, PAGE_SIZE); + drm_gem_private_object_init(priv->drm, gobj2, PAGE_SIZE); + + drm_exec_init(&exec, DRM_EXEC_INTERRUPTIBLE_WAIT, 0); + drm_exec_until_all_locked(&exec) + ret = drm_exec_prepare_array(&exec, array, ARRAY_SIZE(array), + 1); + KUNIT_EXPECT_EQ(test, ret, 0); + drm_exec_fini(&exec); + + drm_gem_private_object_fini(gobj1); + drm_gem_private_object_fini(gobj2); +} + +static void test_multiple_loops(struct kunit *test) +{ + struct drm_exec exec; + + drm_exec_init(&exec, DRM_EXEC_INTERRUPTIBLE_WAIT, 0); + drm_exec_until_all_locked(&exec) + { + break; + } + drm_exec_fini(&exec); + + drm_exec_init(&exec, DRM_EXEC_INTERRUPTIBLE_WAIT, 0); + drm_exec_until_all_locked(&exec) + { + break; + } + drm_exec_fini(&exec); + KUNIT_SUCCEED(test); +} + +static struct kunit_case drm_exec_tests[] = { + KUNIT_CASE(sanitycheck), + KUNIT_CASE(test_lock), + KUNIT_CASE(test_lock_unlock), + KUNIT_CASE(test_duplicates), + KUNIT_CASE(test_prepare), + KUNIT_CASE(test_prepare_array), + KUNIT_CASE(test_multiple_loops), + {} +}; + +static struct kunit_suite drm_exec_test_suite = { + .name = "drm_exec", + .init = drm_exec_test_init, + .test_cases = drm_exec_tests, +}; + +kunit_test_suite(drm_exec_test_suite); + +MODULE_AUTHOR("AMD"); +MODULE_DESCRIPTION("Kunit test for drm_exec functions"); +MODULE_LICENSE("GPL and additional rights"); diff --git a/drivers/gpu/drm/tests/drm_fixp_test.c b/drivers/gpu/drm/tests/drm_fixp_test.c new file mode 100644 index 000000000000..dd77fdedb2a9 --- /dev/null +++ b/drivers/gpu/drm/tests/drm_fixp_test.c @@ -0,0 +1,71 @@ +// SPDX-License-Identifier: MIT +/* + * Copyright 2022 Advanced Micro Devices, Inc. + */ + +#include <kunit/test.h> +#include <drm/drm_fixed.h> + +static void drm_test_sm2fixp(struct kunit *test) +{ + KUNIT_EXPECT_EQ(test, 0x7fffffffffffffffll, ((1ull << 63) - 1)); + + /* 1 */ + KUNIT_EXPECT_EQ(test, drm_int2fixp(1), drm_sm2fixp(1ull << DRM_FIXED_POINT)); + + /* -1 */ + KUNIT_EXPECT_EQ(test, drm_int2fixp(-1), + drm_sm2fixp((1ull << 63) | (1ull << DRM_FIXED_POINT))); + + /* 0.5 */ + KUNIT_EXPECT_EQ(test, drm_fixp_from_fraction(1, 2), + drm_sm2fixp(1ull << (DRM_FIXED_POINT - 1))); + + /* -0.5 */ + KUNIT_EXPECT_EQ(test, drm_fixp_from_fraction(-1, 2), + drm_sm2fixp((1ull << 63) | (1ull << (DRM_FIXED_POINT - 1)))); +} + +static void drm_test_int2fixp(struct kunit *test) +{ + /* 1 */ + KUNIT_EXPECT_EQ(test, 1ll << 32, drm_int2fixp(1)); + + /* -1 */ + KUNIT_EXPECT_EQ(test, -(1ll << 32), drm_int2fixp(-1)); + + /* 1 + (-1) = 0 */ + KUNIT_EXPECT_EQ(test, 0, drm_int2fixp(1) + drm_int2fixp(-1)); + + /* 1 / 2 */ + KUNIT_EXPECT_EQ(test, 1ll << 31, drm_fixp_from_fraction(1, 2)); + + /* -0.5 */ + KUNIT_EXPECT_EQ(test, -(1ll << 31), drm_fixp_from_fraction(-1, 2)); + + /* (1 / 2) + (-1) = 0.5 */ + KUNIT_EXPECT_EQ(test, 1ll << 31, drm_fixp_from_fraction(-1, 2) + drm_int2fixp(1)); + + /* (1 / 2) - 1) = 0.5 */ + KUNIT_EXPECT_EQ(test, -(1ll << 31), drm_fixp_from_fraction(1, 2) + drm_int2fixp(-1)); + + /* (1 / 2) - 1) = 0.5 */ + KUNIT_EXPECT_EQ(test, -(1ll << 31), drm_fixp_from_fraction(1, 2) - drm_int2fixp(1)); +} + +static struct kunit_case drm_fixp_tests[] = { + KUNIT_CASE(drm_test_int2fixp), + KUNIT_CASE(drm_test_sm2fixp), + { } +}; + +static struct kunit_suite drm_fixp_test_suite = { + .name = "drm_fixp", + .test_cases = drm_fixp_tests, +}; + +kunit_test_suite(drm_fixp_test_suite); + +MODULE_AUTHOR("AMD"); +MODULE_LICENSE("Dual MIT/GPL"); +MODULE_DESCRIPTION("Unit tests for drm_fixed.h"); diff --git a/drivers/gpu/drm/tests/drm_format_helper_test.c b/drivers/gpu/drm/tests/drm_format_helper_test.c index 34e80eb6d96e..981dada8f3a8 100644 --- a/drivers/gpu/drm/tests/drm_format_helper_test.c +++ b/drivers/gpu/drm/tests/drm_format_helper_test.c @@ -3,11 +3,13 @@ #include <kunit/test.h> #include <drm/drm_device.h> +#include <drm/drm_drv.h> #include <drm/drm_file.h> #include <drm/drm_format_helper.h> #include <drm/drm_fourcc.h> #include <drm/drm_framebuffer.h> #include <drm/drm_gem_framebuffer_helper.h> +#include <drm/drm_kunit_helpers.h> #include <drm/drm_mode.h> #include <drm/drm_print.h> #include <drm/drm_rect.h> @@ -16,6 +18,12 @@ #define TEST_BUF_SIZE 50 +#define TEST_USE_DEFAULT_PITCH 0 + +static unsigned char fmtcnv_state_mem[PAGE_SIZE]; +static struct drm_format_conv_state fmtcnv_state = + DRM_FORMAT_CONV_STATE_INIT_PREALLOCATED(fmtcnv_state_mem, sizeof(fmtcnv_state_mem)); + struct convert_to_gray8_result { unsigned int dst_pitch; const u8 expected[TEST_BUF_SIZE]; @@ -52,6 +60,11 @@ struct convert_to_rgb888_result { const u8 expected[TEST_BUF_SIZE]; }; +struct convert_to_bgr888_result { + unsigned int dst_pitch; + const u8 expected[TEST_BUF_SIZE]; +}; + struct convert_to_argb8888_result { unsigned int dst_pitch; const u32 expected[TEST_BUF_SIZE]; @@ -67,6 +80,26 @@ struct convert_to_argb2101010_result { const u32 expected[TEST_BUF_SIZE]; }; +struct convert_to_mono_result { + unsigned int dst_pitch; + const u8 expected[TEST_BUF_SIZE]; +}; + +struct fb_swab_result { + unsigned int dst_pitch; + const u32 expected[TEST_BUF_SIZE]; +}; + +struct convert_to_xbgr8888_result { + unsigned int dst_pitch; + const u32 expected[TEST_BUF_SIZE]; +}; + +struct convert_to_abgr8888_result { + unsigned int dst_pitch; + const u32 expected[TEST_BUF_SIZE]; +}; + struct convert_xrgb8888_case { const char *name; unsigned int pitch; @@ -79,9 +112,14 @@ struct convert_xrgb8888_case { struct convert_to_argb1555_result argb1555_result; struct convert_to_rgba5551_result rgba5551_result; struct convert_to_rgb888_result rgb888_result; + struct convert_to_bgr888_result bgr888_result; struct convert_to_argb8888_result argb8888_result; struct convert_to_xrgb2101010_result xrgb2101010_result; struct convert_to_argb2101010_result argb2101010_result; + struct convert_to_mono_result mono_result; + struct fb_swab_result swab_result; + struct convert_to_xbgr8888_result xbgr8888_result; + struct convert_to_abgr8888_result abgr8888_result; }; static struct convert_xrgb8888_case convert_xrgb8888_cases[] = { @@ -91,46 +129,66 @@ static struct convert_xrgb8888_case convert_xrgb8888_cases[] = { .clip = DRM_RECT_INIT(0, 0, 1, 1), .xrgb8888 = { 0x01FF0000 }, .gray8_result = { - .dst_pitch = 0, + .dst_pitch = TEST_USE_DEFAULT_PITCH, .expected = { 0x4C }, }, .rgb332_result = { - .dst_pitch = 0, + .dst_pitch = TEST_USE_DEFAULT_PITCH, .expected = { 0xE0 }, }, .rgb565_result = { - .dst_pitch = 0, + .dst_pitch = TEST_USE_DEFAULT_PITCH, .expected = { 0xF800 }, .expected_swab = { 0x00F8 }, }, .xrgb1555_result = { - .dst_pitch = 0, + .dst_pitch = TEST_USE_DEFAULT_PITCH, .expected = { 0x7C00 }, }, .argb1555_result = { - .dst_pitch = 0, + .dst_pitch = TEST_USE_DEFAULT_PITCH, .expected = { 0xFC00 }, }, .rgba5551_result = { - .dst_pitch = 0, + .dst_pitch = TEST_USE_DEFAULT_PITCH, .expected = { 0xF801 }, }, .rgb888_result = { - .dst_pitch = 0, + .dst_pitch = TEST_USE_DEFAULT_PITCH, .expected = { 0x00, 0x00, 0xFF }, }, + .bgr888_result = { + .dst_pitch = TEST_USE_DEFAULT_PITCH, + .expected = { 0xFF, 0x00, 0x00 }, + }, .argb8888_result = { - .dst_pitch = 0, + .dst_pitch = TEST_USE_DEFAULT_PITCH, .expected = { 0xFFFF0000 }, }, .xrgb2101010_result = { - .dst_pitch = 0, + .dst_pitch = TEST_USE_DEFAULT_PITCH, .expected = { 0x3FF00000 }, }, .argb2101010_result = { - .dst_pitch = 0, + .dst_pitch = TEST_USE_DEFAULT_PITCH, .expected = { 0xFFF00000 }, }, + .mono_result = { + .dst_pitch = TEST_USE_DEFAULT_PITCH, + .expected = { 0b0 }, + }, + .swab_result = { + .dst_pitch = TEST_USE_DEFAULT_PITCH, + .expected = { 0x0000FF01 }, + }, + .xbgr8888_result = { + .dst_pitch = TEST_USE_DEFAULT_PITCH, + .expected = { 0x010000FF }, + }, + .abgr8888_result = { + .dst_pitch = TEST_USE_DEFAULT_PITCH, + .expected = { 0xFF0000FF }, + }, }, { .name = "single_pixel_clip_rectangle", @@ -141,46 +199,66 @@ static struct convert_xrgb8888_case convert_xrgb8888_cases[] = { 0x00000000, 0x10FF0000, }, .gray8_result = { - .dst_pitch = 0, + .dst_pitch = TEST_USE_DEFAULT_PITCH, .expected = { 0x4C }, }, .rgb332_result = { - .dst_pitch = 0, + .dst_pitch = TEST_USE_DEFAULT_PITCH, .expected = { 0xE0 }, }, .rgb565_result = { - .dst_pitch = 0, + .dst_pitch = TEST_USE_DEFAULT_PITCH, .expected = { 0xF800 }, .expected_swab = { 0x00F8 }, }, .xrgb1555_result = { - .dst_pitch = 0, + .dst_pitch = TEST_USE_DEFAULT_PITCH, .expected = { 0x7C00 }, }, .argb1555_result = { - .dst_pitch = 0, + .dst_pitch = TEST_USE_DEFAULT_PITCH, .expected = { 0xFC00 }, }, .rgba5551_result = { - .dst_pitch = 0, + .dst_pitch = TEST_USE_DEFAULT_PITCH, .expected = { 0xF801 }, }, .rgb888_result = { - .dst_pitch = 0, + .dst_pitch = TEST_USE_DEFAULT_PITCH, .expected = { 0x00, 0x00, 0xFF }, }, + .bgr888_result = { + .dst_pitch = TEST_USE_DEFAULT_PITCH, + .expected = { 0xFF, 0x00, 0x00 }, + }, .argb8888_result = { - .dst_pitch = 0, + .dst_pitch = TEST_USE_DEFAULT_PITCH, .expected = { 0xFFFF0000 }, }, .xrgb2101010_result = { - .dst_pitch = 0, + .dst_pitch = TEST_USE_DEFAULT_PITCH, .expected = { 0x3FF00000 }, }, .argb2101010_result = { - .dst_pitch = 0, + .dst_pitch = TEST_USE_DEFAULT_PITCH, .expected = { 0xFFF00000 }, }, + .mono_result = { + .dst_pitch = TEST_USE_DEFAULT_PITCH, + .expected = { 0b0 }, + }, + .swab_result = { + .dst_pitch = TEST_USE_DEFAULT_PITCH, + .expected = { 0x0000FF10 }, + }, + .xbgr8888_result = { + .dst_pitch = TEST_USE_DEFAULT_PITCH, + .expected = { 0x100000FF }, + }, + .abgr8888_result = { + .dst_pitch = TEST_USE_DEFAULT_PITCH, + .expected = { 0xFF0000FF }, + }, }, { /* Well known colors: White, black, red, green, blue, magenta, @@ -198,16 +276,16 @@ static struct convert_xrgb8888_case convert_xrgb8888_cases[] = { 0x00000000, 0x77FFFF00, 0x8800FFFF, 0x00000000, }, .gray8_result = { - .dst_pitch = 0, + .dst_pitch = TEST_USE_DEFAULT_PITCH, .expected = { 0xFF, 0x00, - 0x4C, 0x99, - 0x19, 0x66, - 0xE5, 0xB2, + 0x4C, 0x95, + 0x1C, 0x69, + 0xE2, 0xB2, }, }, .rgb332_result = { - .dst_pitch = 0, + .dst_pitch = TEST_USE_DEFAULT_PITCH, .expected = { 0xFF, 0x00, 0xE0, 0x1C, @@ -216,7 +294,7 @@ static struct convert_xrgb8888_case convert_xrgb8888_cases[] = { }, }, .rgb565_result = { - .dst_pitch = 0, + .dst_pitch = TEST_USE_DEFAULT_PITCH, .expected = { 0xFFFF, 0x0000, 0xF800, 0x07E0, @@ -231,7 +309,7 @@ static struct convert_xrgb8888_case convert_xrgb8888_cases[] = { }, }, .xrgb1555_result = { - .dst_pitch = 0, + .dst_pitch = TEST_USE_DEFAULT_PITCH, .expected = { 0x7FFF, 0x0000, 0x7C00, 0x03E0, @@ -240,7 +318,7 @@ static struct convert_xrgb8888_case convert_xrgb8888_cases[] = { }, }, .argb1555_result = { - .dst_pitch = 0, + .dst_pitch = TEST_USE_DEFAULT_PITCH, .expected = { 0xFFFF, 0x8000, 0xFC00, 0x83E0, @@ -249,7 +327,7 @@ static struct convert_xrgb8888_case convert_xrgb8888_cases[] = { }, }, .rgba5551_result = { - .dst_pitch = 0, + .dst_pitch = TEST_USE_DEFAULT_PITCH, .expected = { 0xFFFF, 0x0001, 0xF801, 0x07C1, @@ -258,7 +336,7 @@ static struct convert_xrgb8888_case convert_xrgb8888_cases[] = { }, }, .rgb888_result = { - .dst_pitch = 0, + .dst_pitch = TEST_USE_DEFAULT_PITCH, .expected = { 0xFF, 0xFF, 0xFF, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFF, 0x00, 0xFF, 0x00, @@ -266,8 +344,17 @@ static struct convert_xrgb8888_case convert_xrgb8888_cases[] = { 0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0x00, }, }, + .bgr888_result = { + .dst_pitch = TEST_USE_DEFAULT_PITCH, + .expected = { + 0xFF, 0xFF, 0xFF, 0x00, 0x00, 0x00, + 0xFF, 0x00, 0x00, 0x00, 0xFF, 0x00, + 0x00, 0x00, 0xFF, 0xFF, 0x00, 0xFF, + 0xFF, 0xFF, 0x00, 0x00, 0xFF, 0xFF, + }, + }, .argb8888_result = { - .dst_pitch = 0, + .dst_pitch = TEST_USE_DEFAULT_PITCH, .expected = { 0xFFFFFFFF, 0xFF000000, 0xFFFF0000, 0xFF00FF00, @@ -276,7 +363,7 @@ static struct convert_xrgb8888_case convert_xrgb8888_cases[] = { }, }, .xrgb2101010_result = { - .dst_pitch = 0, + .dst_pitch = TEST_USE_DEFAULT_PITCH, .expected = { 0x3FFFFFFF, 0x00000000, 0x3FF00000, 0x000FFC00, @@ -285,7 +372,7 @@ static struct convert_xrgb8888_case convert_xrgb8888_cases[] = { }, }, .argb2101010_result = { - .dst_pitch = 0, + .dst_pitch = TEST_USE_DEFAULT_PITCH, .expected = { 0xFFFFFFFF, 0xC0000000, 0xFFF00000, 0xC00FFC00, @@ -293,6 +380,42 @@ static struct convert_xrgb8888_case convert_xrgb8888_cases[] = { 0xFFFFFC00, 0xC00FFFFF, }, }, + .mono_result = { + .dst_pitch = TEST_USE_DEFAULT_PITCH, + .expected = { + 0b01, + 0b10, + 0b00, + 0b11, + }, + }, + .swab_result = { + .dst_pitch = TEST_USE_DEFAULT_PITCH, + .expected = { + 0xFFFFFF11, 0x00000022, + 0x0000FF33, 0x00FF0044, + 0xFF000055, 0xFF00FF66, + 0x00FFFF77, 0xFFFF0088, + }, + }, + .xbgr8888_result = { + .dst_pitch = TEST_USE_DEFAULT_PITCH, + .expected = { + 0x11FFFFFF, 0x22000000, + 0x330000FF, 0x4400FF00, + 0x55FF0000, 0x66FF00FF, + 0x7700FFFF, 0x88FFFF00, + }, + }, + .abgr8888_result = { + .dst_pitch = TEST_USE_DEFAULT_PITCH, + .expected = { + 0xFFFFFFFF, 0xFF000000, + 0xFF0000FF, 0xFF00FF00, + 0xFFFF0000, 0xFFFF00FF, + 0xFF00FFFF, 0xFFFFFF00, + }, + }, }, { /* Randomly picked colors. Full buffer within the clip area. */ @@ -300,96 +423,139 @@ static struct convert_xrgb8888_case convert_xrgb8888_cases[] = { .pitch = 3 * 4, .clip = DRM_RECT_INIT(0, 0, 3, 3), .xrgb8888 = { - 0xA10E449C, 0xB1114D05, 0xC1A80303, - 0xD16C7073, 0xA20E449C, 0xB2114D05, - 0xC2A80303, 0xD26C7073, 0xA30E449C, + 0xA10E449C, 0xB1114D05, 0xC1A8F303, + 0xD16CF073, 0xA20E449C, 0xB2114D05, + 0xC2A80303, 0xD26CF073, 0xA30E449C, }, .gray8_result = { .dst_pitch = 5, .expected = { - 0x3C, 0x33, 0x34, 0x00, 0x00, - 0x6F, 0x3C, 0x33, 0x00, 0x00, - 0x34, 0x6F, 0x3C, 0x00, 0x00, + 0x3D, 0x32, 0xC1, 0x00, 0x00, + 0xBA, 0x3D, 0x32, 0x00, 0x00, + 0x34, 0xBA, 0x3D, 0x00, 0x00, }, }, .rgb332_result = { .dst_pitch = 5, .expected = { - 0x0A, 0x08, 0xA0, 0x00, 0x00, - 0x6D, 0x0A, 0x08, 0x00, 0x00, - 0xA0, 0x6D, 0x0A, 0x00, 0x00, + 0x0A, 0x08, 0xBC, 0x00, 0x00, + 0x7D, 0x0A, 0x08, 0x00, 0x00, + 0xA0, 0x7D, 0x0A, 0x00, 0x00, }, }, .rgb565_result = { .dst_pitch = 10, .expected = { - 0x0A33, 0x1260, 0xA800, 0x0000, 0x0000, - 0x6B8E, 0x0A33, 0x1260, 0x0000, 0x0000, - 0xA800, 0x6B8E, 0x0A33, 0x0000, 0x0000, + 0x0A33, 0x1260, 0xAF80, 0x0000, 0x0000, + 0x6F8E, 0x0A33, 0x1260, 0x0000, 0x0000, + 0xA800, 0x6F8E, 0x0A33, 0x0000, 0x0000, }, .expected_swab = { - 0x330A, 0x6012, 0x00A8, 0x0000, 0x0000, - 0x8E6B, 0x330A, 0x6012, 0x0000, 0x0000, - 0x00A8, 0x8E6B, 0x330A, 0x0000, 0x0000, + 0x330A, 0x6012, 0x80AF, 0x0000, 0x0000, + 0x8E6F, 0x330A, 0x6012, 0x0000, 0x0000, + 0x00A8, 0x8E6F, 0x330A, 0x0000, 0x0000, }, }, .xrgb1555_result = { .dst_pitch = 10, .expected = { - 0x0513, 0x0920, 0x5400, 0x0000, 0x0000, - 0x35CE, 0x0513, 0x0920, 0x0000, 0x0000, - 0x5400, 0x35CE, 0x0513, 0x0000, 0x0000, + 0x0513, 0x0920, 0x57C0, 0x0000, 0x0000, + 0x37CE, 0x0513, 0x0920, 0x0000, 0x0000, + 0x5400, 0x37CE, 0x0513, 0x0000, 0x0000, }, }, .argb1555_result = { .dst_pitch = 10, .expected = { - 0x8513, 0x8920, 0xD400, 0x0000, 0x0000, - 0xB5CE, 0x8513, 0x8920, 0x0000, 0x0000, - 0xD400, 0xB5CE, 0x8513, 0x0000, 0x0000, + 0x8513, 0x8920, 0xD7C0, 0x0000, 0x0000, + 0xB7CE, 0x8513, 0x8920, 0x0000, 0x0000, + 0xD400, 0xB7CE, 0x8513, 0x0000, 0x0000, }, }, .rgba5551_result = { .dst_pitch = 10, .expected = { - 0x0A27, 0x1241, 0xA801, 0x0000, 0x0000, - 0x6B9D, 0x0A27, 0x1241, 0x0000, 0x0000, - 0xA801, 0x6B9D, 0x0A27, 0x0000, 0x0000, + 0x0A27, 0x1241, 0xAF81, 0x0000, 0x0000, + 0x6F9D, 0x0A27, 0x1241, 0x0000, 0x0000, + 0xA801, 0x6F9D, 0x0A27, 0x0000, 0x0000, }, }, .rgb888_result = { .dst_pitch = 15, .expected = { - 0x9C, 0x44, 0x0E, 0x05, 0x4D, 0x11, 0x03, 0x03, 0xA8, + 0x9C, 0x44, 0x0E, 0x05, 0x4D, 0x11, 0x03, 0xF3, 0xA8, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x73, 0xF0, 0x6C, 0x9C, 0x44, 0x0E, 0x05, 0x4D, 0x11, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x03, 0x03, 0xA8, 0x73, 0xF0, 0x6C, 0x9C, 0x44, 0x0E, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + }, + }, + .bgr888_result = { + .dst_pitch = 15, + .expected = { + 0x0E, 0x44, 0x9C, 0x11, 0x4D, 0x05, 0xA8, 0xF3, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x73, 0x70, 0x6C, 0x9C, 0x44, 0x0E, 0x05, 0x4D, 0x11, + 0x6C, 0xF0, 0x73, 0x0E, 0x44, 0x9C, 0x11, 0x4D, 0x05, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x03, 0x03, 0xA8, 0x73, 0x70, 0x6C, 0x9C, 0x44, 0x0E, + 0xA8, 0x03, 0x03, 0x6C, 0xF0, 0x73, 0x0E, 0x44, 0x9C, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, }, }, .argb8888_result = { .dst_pitch = 20, .expected = { - 0xFF0E449C, 0xFF114D05, 0xFFA80303, 0x00000000, 0x00000000, - 0xFF6C7073, 0xFF0E449C, 0xFF114D05, 0x00000000, 0x00000000, - 0xFFA80303, 0xFF6C7073, 0xFF0E449C, 0x00000000, 0x00000000, + 0xFF0E449C, 0xFF114D05, 0xFFA8F303, 0x00000000, 0x00000000, + 0xFF6CF073, 0xFF0E449C, 0xFF114D05, 0x00000000, 0x00000000, + 0xFFA80303, 0xFF6CF073, 0xFF0E449C, 0x00000000, 0x00000000, }, }, .xrgb2101010_result = { .dst_pitch = 20, .expected = { - 0x03844672, 0x0444D414, 0x2A20300C, 0x00000000, 0x00000000, - 0x1B1705CD, 0x03844672, 0x0444D414, 0x00000000, 0x00000000, - 0x2A20300C, 0x1B1705CD, 0x03844672, 0x00000000, 0x00000000, + 0x03844672, 0x0444D414, 0x2A2F3C0C, 0x00000000, 0x00000000, + 0x1B1F0DCD, 0x03844672, 0x0444D414, 0x00000000, 0x00000000, + 0x2A20300C, 0x1B1F0DCD, 0x03844672, 0x00000000, 0x00000000, }, }, .argb2101010_result = { .dst_pitch = 20, .expected = { - 0xC3844672, 0xC444D414, 0xEA20300C, 0x00000000, 0x00000000, - 0xDB1705CD, 0xC3844672, 0xC444D414, 0x00000000, 0x00000000, - 0xEA20300C, 0xDB1705CD, 0xC3844672, 0x00000000, 0x00000000, + 0xC3844672, 0xC444D414, 0xEA2F3C0C, 0x00000000, 0x00000000, + 0xDB1F0DCD, 0xC3844672, 0xC444D414, 0x00000000, 0x00000000, + 0xEA20300C, 0xDB1F0DCD, 0xC3844672, 0x00000000, 0x00000000, + }, + }, + .mono_result = { + .dst_pitch = 2, + .expected = { + 0b100, 0b000, + 0b001, 0b000, + 0b010, 0b000, + }, + }, + .swab_result = { + .dst_pitch = 20, + .expected = { + 0x9C440EA1, 0x054D11B1, 0x03F3A8C1, 0x00000000, 0x00000000, + 0x73F06CD1, 0x9C440EA2, 0x054D11B2, 0x00000000, 0x00000000, + 0x0303A8C2, 0x73F06CD2, 0x9C440EA3, 0x00000000, 0x00000000, + }, + }, + .xbgr8888_result = { + .dst_pitch = 20, + .expected = { + 0xA19C440E, 0xB1054D11, 0xC103F3A8, 0x00000000, 0x00000000, + 0xD173F06C, 0xA29C440E, 0xB2054D11, 0x00000000, 0x00000000, + 0xC20303A8, 0xD273F06C, 0xA39C440E, 0x00000000, 0x00000000, + }, + }, + .abgr8888_result = { + .dst_pitch = 20, + .expected = { + 0xFF9C440E, 0xFF054D11, 0xFF03F3A8, 0x00000000, 0x00000000, + 0xFF73F06C, 0xFF9C440E, 0xFF054D11, 0x00000000, 0x00000000, + 0xFF0303A8, 0xFF73F06C, 0xFF9C440E, 0x00000000, 0x00000000, }, }, }, @@ -406,7 +572,7 @@ static struct convert_xrgb8888_case convert_xrgb8888_cases[] = { * The size of the destination buffer or negative value on error. */ static size_t conversion_buf_size(u32 dst_format, unsigned int dst_pitch, - const struct drm_rect *clip) + const struct drm_rect *clip, int plane) { const struct drm_format_info *dst_fi = drm_format_info(dst_format); @@ -414,7 +580,7 @@ static size_t conversion_buf_size(u32 dst_format, unsigned int dst_pitch, return -EINVAL; if (!dst_pitch) - dst_pitch = drm_rect_width(clip) * dst_fi->cpp[0]; + dst_pitch = drm_format_info_min_pitch(dst_fi, plane, drm_rect_width(clip)); return dst_pitch * drm_rect_height(clip); } @@ -488,7 +654,7 @@ static void drm_test_fb_xrgb8888_to_gray8(struct kunit *test) }; dst_size = conversion_buf_size(DRM_FORMAT_R8, result->dst_pitch, - ¶ms->clip); + ¶ms->clip, 0); KUNIT_ASSERT_GT(test, dst_size, 0); buf = kunit_kzalloc(test, dst_size, GFP_KERNEL); @@ -499,7 +665,10 @@ static void drm_test_fb_xrgb8888_to_gray8(struct kunit *test) KUNIT_ASSERT_NOT_ERR_OR_NULL(test, xrgb8888); iosys_map_set_vaddr(&src, xrgb8888); - drm_fb_xrgb8888_to_gray8(&dst, &result->dst_pitch, &src, &fb, ¶ms->clip); + const unsigned int *dst_pitch = (result->dst_pitch == TEST_USE_DEFAULT_PITCH) ? + NULL : &result->dst_pitch; + + drm_fb_xrgb8888_to_gray8(&dst, dst_pitch, &src, &fb, ¶ms->clip, &fmtcnv_state); KUNIT_EXPECT_MEMEQ(test, buf, result->expected, dst_size); } @@ -518,7 +687,7 @@ static void drm_test_fb_xrgb8888_to_rgb332(struct kunit *test) }; dst_size = conversion_buf_size(DRM_FORMAT_RGB332, result->dst_pitch, - ¶ms->clip); + ¶ms->clip, 0); KUNIT_ASSERT_GT(test, dst_size, 0); buf = kunit_kzalloc(test, dst_size, GFP_KERNEL); @@ -529,7 +698,10 @@ static void drm_test_fb_xrgb8888_to_rgb332(struct kunit *test) KUNIT_ASSERT_NOT_ERR_OR_NULL(test, xrgb8888); iosys_map_set_vaddr(&src, xrgb8888); - drm_fb_xrgb8888_to_rgb332(&dst, &result->dst_pitch, &src, &fb, ¶ms->clip); + const unsigned int *dst_pitch = (result->dst_pitch == TEST_USE_DEFAULT_PITCH) ? + NULL : &result->dst_pitch; + + drm_fb_xrgb8888_to_rgb332(&dst, dst_pitch, &src, &fb, ¶ms->clip, &fmtcnv_state); KUNIT_EXPECT_MEMEQ(test, buf, result->expected, dst_size); } @@ -548,7 +720,7 @@ static void drm_test_fb_xrgb8888_to_rgb565(struct kunit *test) }; dst_size = conversion_buf_size(DRM_FORMAT_RGB565, result->dst_pitch, - ¶ms->clip); + ¶ms->clip, 0); KUNIT_ASSERT_GT(test, dst_size, 0); buf = kunit_kzalloc(test, dst_size, GFP_KERNEL); @@ -559,14 +731,27 @@ static void drm_test_fb_xrgb8888_to_rgb565(struct kunit *test) KUNIT_ASSERT_NOT_ERR_OR_NULL(test, xrgb8888); iosys_map_set_vaddr(&src, xrgb8888); - drm_fb_xrgb8888_to_rgb565(&dst, &result->dst_pitch, &src, &fb, ¶ms->clip, false); + const unsigned int *dst_pitch = (result->dst_pitch == TEST_USE_DEFAULT_PITCH) ? + NULL : &result->dst_pitch; + + drm_fb_xrgb8888_to_rgb565(&dst, dst_pitch, &src, &fb, ¶ms->clip, + &fmtcnv_state); buf = le16buf_to_cpu(test, (__force const __le16 *)buf, dst_size / sizeof(__le16)); KUNIT_EXPECT_MEMEQ(test, buf, result->expected, dst_size); buf = dst.vaddr; /* restore original value of buf */ - drm_fb_xrgb8888_to_rgb565(&dst, &result->dst_pitch, &src, &fb, ¶ms->clip, true); + drm_fb_xrgb8888_to_rgb565be(&dst, &result->dst_pitch, &src, &fb, ¶ms->clip, + &fmtcnv_state); buf = le16buf_to_cpu(test, (__force const __le16 *)buf, dst_size / sizeof(__le16)); KUNIT_EXPECT_MEMEQ(test, buf, result->expected_swab, dst_size); + + buf = dst.vaddr; + memset(buf, 0, dst_size); + + drm_fb_xrgb8888_to_rgb565(&dst, dst_pitch, &src, &fb, ¶ms->clip, + &fmtcnv_state); + buf = le16buf_to_cpu(test, (__force const __le16 *)buf, dst_size / sizeof(__le16)); + KUNIT_EXPECT_MEMEQ(test, buf, result->expected, dst_size); } static void drm_test_fb_xrgb8888_to_xrgb1555(struct kunit *test) @@ -584,7 +769,7 @@ static void drm_test_fb_xrgb8888_to_xrgb1555(struct kunit *test) }; dst_size = conversion_buf_size(DRM_FORMAT_XRGB1555, result->dst_pitch, - ¶ms->clip); + ¶ms->clip, 0); KUNIT_ASSERT_GT(test, dst_size, 0); buf = kunit_kzalloc(test, dst_size, GFP_KERNEL); @@ -595,9 +780,19 @@ static void drm_test_fb_xrgb8888_to_xrgb1555(struct kunit *test) KUNIT_ASSERT_NOT_ERR_OR_NULL(test, xrgb8888); iosys_map_set_vaddr(&src, xrgb8888); - drm_fb_xrgb8888_to_xrgb1555(&dst, &result->dst_pitch, &src, &fb, ¶ms->clip); + const unsigned int *dst_pitch = (result->dst_pitch == TEST_USE_DEFAULT_PITCH) ? + NULL : &result->dst_pitch; + + drm_fb_xrgb8888_to_xrgb1555(&dst, dst_pitch, &src, &fb, ¶ms->clip, &fmtcnv_state); + buf = le16buf_to_cpu(test, (__force const __le16 *)buf, dst_size / sizeof(__le16)); + KUNIT_EXPECT_MEMEQ(test, buf, result->expected, dst_size); + + buf = dst.vaddr; /* restore original value of buf */ + memset(buf, 0, dst_size); + + drm_fb_xrgb8888_to_xrgb1555(&dst, dst_pitch, &src, &fb, ¶ms->clip, &fmtcnv_state); buf = le16buf_to_cpu(test, (__force const __le16 *)buf, dst_size / sizeof(__le16)); - KUNIT_EXPECT_EQ(test, memcmp(buf, result->expected, dst_size), 0); + KUNIT_EXPECT_MEMEQ(test, buf, result->expected, dst_size); } static void drm_test_fb_xrgb8888_to_argb1555(struct kunit *test) @@ -615,7 +810,7 @@ static void drm_test_fb_xrgb8888_to_argb1555(struct kunit *test) }; dst_size = conversion_buf_size(DRM_FORMAT_ARGB1555, result->dst_pitch, - ¶ms->clip); + ¶ms->clip, 0); KUNIT_ASSERT_GT(test, dst_size, 0); buf = kunit_kzalloc(test, dst_size, GFP_KERNEL); @@ -626,9 +821,19 @@ static void drm_test_fb_xrgb8888_to_argb1555(struct kunit *test) KUNIT_ASSERT_NOT_ERR_OR_NULL(test, xrgb8888); iosys_map_set_vaddr(&src, xrgb8888); - drm_fb_xrgb8888_to_argb1555(&dst, &result->dst_pitch, &src, &fb, ¶ms->clip); + const unsigned int *dst_pitch = (result->dst_pitch == TEST_USE_DEFAULT_PITCH) ? + NULL : &result->dst_pitch; + + drm_fb_xrgb8888_to_argb1555(&dst, dst_pitch, &src, &fb, ¶ms->clip, &fmtcnv_state); + buf = le16buf_to_cpu(test, (__force const __le16 *)buf, dst_size / sizeof(__le16)); + KUNIT_EXPECT_MEMEQ(test, buf, result->expected, dst_size); + + buf = dst.vaddr; /* restore original value of buf */ + memset(buf, 0, dst_size); + + drm_fb_xrgb8888_to_argb1555(&dst, dst_pitch, &src, &fb, ¶ms->clip, &fmtcnv_state); buf = le16buf_to_cpu(test, (__force const __le16 *)buf, dst_size / sizeof(__le16)); - KUNIT_EXPECT_EQ(test, memcmp(buf, result->expected, dst_size), 0); + KUNIT_EXPECT_MEMEQ(test, buf, result->expected, dst_size); } static void drm_test_fb_xrgb8888_to_rgba5551(struct kunit *test) @@ -646,7 +851,7 @@ static void drm_test_fb_xrgb8888_to_rgba5551(struct kunit *test) }; dst_size = conversion_buf_size(DRM_FORMAT_RGBA5551, result->dst_pitch, - ¶ms->clip); + ¶ms->clip, 0); KUNIT_ASSERT_GT(test, dst_size, 0); buf = kunit_kzalloc(test, dst_size, GFP_KERNEL); @@ -657,9 +862,19 @@ static void drm_test_fb_xrgb8888_to_rgba5551(struct kunit *test) KUNIT_ASSERT_NOT_ERR_OR_NULL(test, xrgb8888); iosys_map_set_vaddr(&src, xrgb8888); - drm_fb_xrgb8888_to_rgba5551(&dst, &result->dst_pitch, &src, &fb, ¶ms->clip); + const unsigned int *dst_pitch = (result->dst_pitch == TEST_USE_DEFAULT_PITCH) ? + NULL : &result->dst_pitch; + + drm_fb_xrgb8888_to_rgba5551(&dst, dst_pitch, &src, &fb, ¶ms->clip, &fmtcnv_state); + buf = le16buf_to_cpu(test, (__force const __le16 *)buf, dst_size / sizeof(__le16)); + KUNIT_EXPECT_MEMEQ(test, buf, result->expected, dst_size); + + buf = dst.vaddr; /* restore original value of buf */ + memset(buf, 0, dst_size); + + drm_fb_xrgb8888_to_rgba5551(&dst, dst_pitch, &src, &fb, ¶ms->clip, &fmtcnv_state); buf = le16buf_to_cpu(test, (__force const __le16 *)buf, dst_size / sizeof(__le16)); - KUNIT_EXPECT_EQ(test, memcmp(buf, result->expected, dst_size), 0); + KUNIT_EXPECT_MEMEQ(test, buf, result->expected, dst_size); } static void drm_test_fb_xrgb8888_to_rgb888(struct kunit *test) @@ -677,7 +892,7 @@ static void drm_test_fb_xrgb8888_to_rgb888(struct kunit *test) }; dst_size = conversion_buf_size(DRM_FORMAT_RGB888, result->dst_pitch, - ¶ms->clip); + ¶ms->clip, 0); KUNIT_ASSERT_GT(test, dst_size, 0); buf = kunit_kzalloc(test, dst_size, GFP_KERNEL); @@ -692,7 +907,58 @@ static void drm_test_fb_xrgb8888_to_rgb888(struct kunit *test) * RGB888 expected results are already in little-endian * order, so there's no need to convert the test output. */ - drm_fb_xrgb8888_to_rgb888(&dst, &result->dst_pitch, &src, &fb, ¶ms->clip); + const unsigned int *dst_pitch = (result->dst_pitch == TEST_USE_DEFAULT_PITCH) ? + NULL : &result->dst_pitch; + + drm_fb_xrgb8888_to_rgb888(&dst, dst_pitch, &src, &fb, ¶ms->clip, &fmtcnv_state); + KUNIT_EXPECT_MEMEQ(test, buf, result->expected, dst_size); + + buf = dst.vaddr; /* restore original value of buf */ + memset(buf, 0, dst_size); + + drm_fb_xrgb8888_to_rgb888(&dst, dst_pitch, &src, &fb, ¶ms->clip, &fmtcnv_state); + KUNIT_EXPECT_MEMEQ(test, buf, result->expected, dst_size); +} + +static void drm_test_fb_xrgb8888_to_bgr888(struct kunit *test) +{ + const struct convert_xrgb8888_case *params = test->param_value; + const struct convert_to_bgr888_result *result = ¶ms->bgr888_result; + size_t dst_size; + u8 *buf = NULL; + __le32 *xrgb8888 = NULL; + struct iosys_map dst, src; + + struct drm_framebuffer fb = { + .format = drm_format_info(DRM_FORMAT_XRGB8888), + .pitches = { params->pitch, 0, 0 }, + }; + + dst_size = conversion_buf_size(DRM_FORMAT_BGR888, result->dst_pitch, + ¶ms->clip, 0); + KUNIT_ASSERT_GT(test, dst_size, 0); + + buf = kunit_kzalloc(test, dst_size, GFP_KERNEL); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, buf); + iosys_map_set_vaddr(&dst, buf); + + xrgb8888 = cpubuf_to_le32(test, params->xrgb8888, TEST_BUF_SIZE); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, xrgb8888); + iosys_map_set_vaddr(&src, xrgb8888); + + /* + * BGR888 expected results are already in little-endian + * order, so there's no need to convert the test output. + */ + drm_fb_xrgb8888_to_bgr888(&dst, &result->dst_pitch, &src, &fb, ¶ms->clip, + &fmtcnv_state); + KUNIT_EXPECT_MEMEQ(test, buf, result->expected, dst_size); + + buf = dst.vaddr; /* restore original value of buf */ + memset(buf, 0, dst_size); + + drm_fb_xrgb8888_to_bgr888(&dst, &result->dst_pitch, &src, &fb, ¶ms->clip, + &fmtcnv_state); KUNIT_EXPECT_MEMEQ(test, buf, result->expected, dst_size); } @@ -711,7 +977,7 @@ static void drm_test_fb_xrgb8888_to_argb8888(struct kunit *test) }; dst_size = conversion_buf_size(DRM_FORMAT_ARGB8888, - result->dst_pitch, ¶ms->clip); + result->dst_pitch, ¶ms->clip, 0); KUNIT_ASSERT_GT(test, dst_size, 0); buf = kunit_kzalloc(test, dst_size, GFP_KERNEL); @@ -722,9 +988,19 @@ static void drm_test_fb_xrgb8888_to_argb8888(struct kunit *test) KUNIT_ASSERT_NOT_ERR_OR_NULL(test, xrgb8888); iosys_map_set_vaddr(&src, xrgb8888); - drm_fb_xrgb8888_to_argb8888(&dst, &result->dst_pitch, &src, &fb, ¶ms->clip); + const unsigned int *dst_pitch = (result->dst_pitch == TEST_USE_DEFAULT_PITCH) ? + NULL : &result->dst_pitch; + + drm_fb_xrgb8888_to_argb8888(&dst, dst_pitch, &src, &fb, ¶ms->clip, &fmtcnv_state); buf = le32buf_to_cpu(test, (__force const __le32 *)buf, dst_size / sizeof(u32)); - KUNIT_EXPECT_EQ(test, memcmp(buf, result->expected, dst_size), 0); + KUNIT_EXPECT_MEMEQ(test, buf, result->expected, dst_size); + + buf = dst.vaddr; /* restore original value of buf */ + memset(buf, 0, dst_size); + + drm_fb_xrgb8888_to_argb8888(&dst, dst_pitch, &src, &fb, ¶ms->clip, &fmtcnv_state); + buf = le32buf_to_cpu(test, (__force const __le32 *)buf, dst_size / sizeof(u32)); + KUNIT_EXPECT_MEMEQ(test, buf, result->expected, dst_size); } static void drm_test_fb_xrgb8888_to_xrgb2101010(struct kunit *test) @@ -742,7 +1018,7 @@ static void drm_test_fb_xrgb8888_to_xrgb2101010(struct kunit *test) }; dst_size = conversion_buf_size(DRM_FORMAT_XRGB2101010, - result->dst_pitch, ¶ms->clip); + result->dst_pitch, ¶ms->clip, 0); KUNIT_ASSERT_GT(test, dst_size, 0); buf = kunit_kzalloc(test, dst_size, GFP_KERNEL); @@ -753,8 +1029,18 @@ static void drm_test_fb_xrgb8888_to_xrgb2101010(struct kunit *test) KUNIT_ASSERT_NOT_ERR_OR_NULL(test, xrgb8888); iosys_map_set_vaddr(&src, xrgb8888); - drm_fb_xrgb8888_to_xrgb2101010(&dst, &result->dst_pitch, &src, &fb, ¶ms->clip); - buf = le32buf_to_cpu(test, buf, dst_size / sizeof(u32)); + const unsigned int *dst_pitch = (result->dst_pitch == TEST_USE_DEFAULT_PITCH) ? + NULL : &result->dst_pitch; + + drm_fb_xrgb8888_to_xrgb2101010(&dst, dst_pitch, &src, &fb, ¶ms->clip, &fmtcnv_state); + buf = le32buf_to_cpu(test, (__force const __le32 *)buf, dst_size / sizeof(u32)); + KUNIT_EXPECT_MEMEQ(test, buf, result->expected, dst_size); + + buf = dst.vaddr; /* restore original value of buf */ + memset(buf, 0, dst_size); + + drm_fb_xrgb8888_to_xrgb2101010(&dst, dst_pitch, &src, &fb, ¶ms->clip, &fmtcnv_state); + buf = le32buf_to_cpu(test, (__force const __le32 *)buf, dst_size / sizeof(u32)); KUNIT_EXPECT_MEMEQ(test, buf, result->expected, dst_size); } @@ -773,7 +1059,175 @@ static void drm_test_fb_xrgb8888_to_argb2101010(struct kunit *test) }; dst_size = conversion_buf_size(DRM_FORMAT_ARGB2101010, - result->dst_pitch, ¶ms->clip); + result->dst_pitch, ¶ms->clip, 0); + KUNIT_ASSERT_GT(test, dst_size, 0); + + buf = kunit_kzalloc(test, dst_size, GFP_KERNEL); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, buf); + iosys_map_set_vaddr(&dst, buf); + + xrgb8888 = cpubuf_to_le32(test, params->xrgb8888, TEST_BUF_SIZE); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, xrgb8888); + iosys_map_set_vaddr(&src, xrgb8888); + + const unsigned int *dst_pitch = (result->dst_pitch == TEST_USE_DEFAULT_PITCH) ? + NULL : &result->dst_pitch; + + drm_fb_xrgb8888_to_argb2101010(&dst, dst_pitch, &src, &fb, ¶ms->clip, &fmtcnv_state); + buf = le32buf_to_cpu(test, (__force const __le32 *)buf, dst_size / sizeof(u32)); + KUNIT_EXPECT_MEMEQ(test, buf, result->expected, dst_size); + + buf = dst.vaddr; /* restore original value of buf */ + memset(buf, 0, dst_size); + + drm_fb_xrgb8888_to_argb2101010(&dst, dst_pitch, &src, &fb, ¶ms->clip, &fmtcnv_state); + buf = le32buf_to_cpu(test, (__force const __le32 *)buf, dst_size / sizeof(u32)); + KUNIT_EXPECT_MEMEQ(test, buf, result->expected, dst_size); +} + +static void drm_test_fb_xrgb8888_to_mono(struct kunit *test) +{ + const struct convert_xrgb8888_case *params = test->param_value; + const struct convert_to_mono_result *result = ¶ms->mono_result; + size_t dst_size; + u8 *buf = NULL; + __le32 *xrgb8888 = NULL; + struct iosys_map dst, src; + + struct drm_framebuffer fb = { + .format = drm_format_info(DRM_FORMAT_XRGB8888), + .pitches = { params->pitch, 0, 0 }, + }; + + dst_size = conversion_buf_size(DRM_FORMAT_C1, result->dst_pitch, ¶ms->clip, 0); + + KUNIT_ASSERT_GT(test, dst_size, 0); + + buf = kunit_kzalloc(test, dst_size, GFP_KERNEL); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, buf); + iosys_map_set_vaddr(&dst, buf); + + xrgb8888 = cpubuf_to_le32(test, params->xrgb8888, TEST_BUF_SIZE); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, xrgb8888); + iosys_map_set_vaddr(&src, xrgb8888); + + const unsigned int *dst_pitch = (result->dst_pitch == TEST_USE_DEFAULT_PITCH) ? + NULL : &result->dst_pitch; + + drm_fb_xrgb8888_to_mono(&dst, dst_pitch, &src, &fb, ¶ms->clip, &fmtcnv_state); + KUNIT_EXPECT_MEMEQ(test, buf, result->expected, dst_size); +} + +static void drm_test_fb_swab(struct kunit *test) +{ + const struct convert_xrgb8888_case *params = test->param_value; + const struct fb_swab_result *result = ¶ms->swab_result; + size_t dst_size; + u32 *buf = NULL; + __le32 *xrgb8888 = NULL; + struct iosys_map dst, src; + + struct drm_framebuffer fb = { + .format = drm_format_info(DRM_FORMAT_XRGB8888), + .pitches = { params->pitch, 0, 0 }, + }; + + dst_size = conversion_buf_size(DRM_FORMAT_XRGB8888, result->dst_pitch, ¶ms->clip, 0); + + KUNIT_ASSERT_GT(test, dst_size, 0); + + buf = kunit_kzalloc(test, dst_size, GFP_KERNEL); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, buf); + iosys_map_set_vaddr(&dst, buf); + + xrgb8888 = cpubuf_to_le32(test, params->xrgb8888, TEST_BUF_SIZE); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, xrgb8888); + iosys_map_set_vaddr(&src, xrgb8888); + + const unsigned int *dst_pitch = (result->dst_pitch == TEST_USE_DEFAULT_PITCH) ? + NULL : &result->dst_pitch; + + drm_fb_swab(&dst, dst_pitch, &src, &fb, ¶ms->clip, false, &fmtcnv_state); + buf = le32buf_to_cpu(test, (__force const __le32 *)buf, dst_size / sizeof(u32)); + KUNIT_EXPECT_MEMEQ(test, buf, result->expected, dst_size); + + buf = dst.vaddr; /* restore original value of buf */ + memset(buf, 0, dst_size); + + drm_fb_swab(&dst, dst_pitch, &src, &fb, ¶ms->clip, false, &fmtcnv_state); + buf = le32buf_to_cpu(test, (__force const __le32 *)buf, dst_size / sizeof(u32)); + KUNIT_EXPECT_MEMEQ(test, buf, result->expected, dst_size); + + buf = dst.vaddr; + memset(buf, 0, dst_size); + + drm_fb_xrgb8888_to_bgrx8888(&dst, dst_pitch, &src, &fb, ¶ms->clip, &fmtcnv_state); + buf = le32buf_to_cpu(test, (__force const __le32 *)buf, dst_size / sizeof(u32)); + KUNIT_EXPECT_MEMEQ(test, buf, result->expected, dst_size); + + buf = dst.vaddr; + memset(buf, 0, dst_size); + + struct drm_format_info mock_format = *fb.format; + + mock_format.format |= DRM_FORMAT_BIG_ENDIAN; + fb.format = &mock_format; + + drm_fb_swab(&dst, dst_pitch, &src, &fb, ¶ms->clip, false, &fmtcnv_state); + buf = le32buf_to_cpu(test, (__force const __le32 *)buf, dst_size / sizeof(u32)); + KUNIT_EXPECT_MEMEQ(test, buf, result->expected, dst_size); +} + +static void drm_test_fb_xrgb8888_to_abgr8888(struct kunit *test) +{ + const struct convert_xrgb8888_case *params = test->param_value; + const struct convert_to_abgr8888_result *result = ¶ms->abgr8888_result; + size_t dst_size; + u32 *buf = NULL; + __le32 *xrgb8888 = NULL; + struct iosys_map dst, src; + + struct drm_framebuffer fb = { + .format = drm_format_info(DRM_FORMAT_XRGB8888), + .pitches = { params->pitch, 0, 0 }, + }; + + dst_size = conversion_buf_size(DRM_FORMAT_XBGR8888, result->dst_pitch, ¶ms->clip, 0); + + KUNIT_ASSERT_GT(test, dst_size, 0); + + buf = kunit_kzalloc(test, dst_size, GFP_KERNEL); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, buf); + iosys_map_set_vaddr(&dst, buf); + + xrgb8888 = cpubuf_to_le32(test, params->xrgb8888, TEST_BUF_SIZE); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, xrgb8888); + iosys_map_set_vaddr(&src, xrgb8888); + + const unsigned int *dst_pitch = (result->dst_pitch == TEST_USE_DEFAULT_PITCH) ? + NULL : &result->dst_pitch; + + drm_fb_xrgb8888_to_abgr8888(&dst, dst_pitch, &src, &fb, ¶ms->clip, &fmtcnv_state); + buf = le32buf_to_cpu(test, (__force const __le32 *)buf, dst_size / sizeof(u32)); + KUNIT_EXPECT_MEMEQ(test, buf, result->expected, dst_size); +} + +static void drm_test_fb_xrgb8888_to_xbgr8888(struct kunit *test) +{ + const struct convert_xrgb8888_case *params = test->param_value; + const struct convert_to_xbgr8888_result *result = ¶ms->xbgr8888_result; + size_t dst_size; + u32 *buf = NULL; + __le32 *xrgb8888 = NULL; + struct iosys_map dst, src; + + struct drm_framebuffer fb = { + .format = drm_format_info(DRM_FORMAT_XRGB8888), + .pitches = { params->pitch, 0, 0 }, + }; + + dst_size = conversion_buf_size(DRM_FORMAT_XBGR8888, result->dst_pitch, ¶ms->clip, 0); + KUNIT_ASSERT_GT(test, dst_size, 0); buf = kunit_kzalloc(test, dst_size, GFP_KERNEL); @@ -784,9 +1238,473 @@ static void drm_test_fb_xrgb8888_to_argb2101010(struct kunit *test) KUNIT_ASSERT_NOT_ERR_OR_NULL(test, xrgb8888); iosys_map_set_vaddr(&src, xrgb8888); - drm_fb_xrgb8888_to_argb2101010(&dst, &result->dst_pitch, &src, &fb, ¶ms->clip); + const unsigned int *dst_pitch = (result->dst_pitch == TEST_USE_DEFAULT_PITCH) ? + NULL : &result->dst_pitch; + + drm_fb_xrgb8888_to_xbgr8888(&dst, dst_pitch, &src, &fb, ¶ms->clip, &fmtcnv_state); buf = le32buf_to_cpu(test, (__force const __le32 *)buf, dst_size / sizeof(u32)); - KUNIT_EXPECT_EQ(test, memcmp(buf, result->expected, dst_size), 0); + KUNIT_EXPECT_MEMEQ(test, buf, result->expected, dst_size); +} + +struct clip_offset_case { + const char *name; + unsigned int pitch; + u32 format; + struct drm_rect clip; + unsigned int expected_offset; +}; + +static struct clip_offset_case clip_offset_cases[] = { + { + .name = "pass through", + .pitch = TEST_USE_DEFAULT_PITCH, + .format = DRM_FORMAT_XRGB8888, + .clip = DRM_RECT_INIT(0, 0, 3, 3), + .expected_offset = 0 + }, + { + .name = "horizontal offset", + .pitch = TEST_USE_DEFAULT_PITCH, + .format = DRM_FORMAT_XRGB8888, + .clip = DRM_RECT_INIT(1, 0, 3, 3), + .expected_offset = 4, + }, + { + .name = "vertical offset", + .pitch = TEST_USE_DEFAULT_PITCH, + .format = DRM_FORMAT_XRGB8888, + .clip = DRM_RECT_INIT(0, 1, 3, 3), + .expected_offset = 12, + }, + { + .name = "horizontal and vertical offset", + .pitch = TEST_USE_DEFAULT_PITCH, + .format = DRM_FORMAT_XRGB8888, + .clip = DRM_RECT_INIT(1, 1, 3, 3), + .expected_offset = 16, + }, + { + .name = "horizontal offset (custom pitch)", + .pitch = 20, + .format = DRM_FORMAT_XRGB8888, + .clip = DRM_RECT_INIT(1, 0, 3, 3), + .expected_offset = 4, + }, + { + .name = "vertical offset (custom pitch)", + .pitch = 20, + .format = DRM_FORMAT_XRGB8888, + .clip = DRM_RECT_INIT(0, 1, 3, 3), + .expected_offset = 20, + }, + { + .name = "horizontal and vertical offset (custom pitch)", + .pitch = 20, + .format = DRM_FORMAT_XRGB8888, + .clip = DRM_RECT_INIT(1, 1, 3, 3), + .expected_offset = 24, + }, +}; + +static void clip_offset_case_desc(struct clip_offset_case *t, char *desc) +{ + strscpy(desc, t->name, KUNIT_PARAM_DESC_SIZE); +} + +KUNIT_ARRAY_PARAM(clip_offset, clip_offset_cases, clip_offset_case_desc); + +static void drm_test_fb_clip_offset(struct kunit *test) +{ + const struct clip_offset_case *params = test->param_value; + const struct drm_format_info *format_info = drm_format_info(params->format); + + unsigned int offset; + unsigned int pitch = params->pitch; + + if (pitch == TEST_USE_DEFAULT_PITCH) + pitch = drm_format_info_min_pitch(format_info, 0, + drm_rect_width(¶ms->clip)); + + /* + * Assure that the pitch is not zero, because this will inevitable cause the + * wrong expected result + */ + KUNIT_ASSERT_NE(test, pitch, 0); + + offset = drm_fb_clip_offset(pitch, format_info, ¶ms->clip); + + KUNIT_EXPECT_EQ(test, offset, params->expected_offset); +} + +struct fb_memcpy_case { + const char *name; + u32 format; + struct drm_rect clip; + unsigned int src_pitches[DRM_FORMAT_MAX_PLANES]; + const u32 src[DRM_FORMAT_MAX_PLANES][TEST_BUF_SIZE]; + unsigned int dst_pitches[DRM_FORMAT_MAX_PLANES]; + const u32 expected[DRM_FORMAT_MAX_PLANES][TEST_BUF_SIZE]; +}; + +/* The `src` and `expected` buffers are u32 arrays. To deal with planes that + * have a cpp != 4 the values are stored together on the same u32 number in a + * way so the order in memory is correct in a little-endian machine. + * + * Because of that, on some occasions, parts of a u32 will not be part of the + * test, to make this explicit the 0xFF byte is used on those parts. + */ + +static struct fb_memcpy_case fb_memcpy_cases[] = { + { + .name = "single_pixel_source_buffer", + .format = DRM_FORMAT_XRGB8888, + .clip = DRM_RECT_INIT(0, 0, 1, 1), + .src_pitches = { 1 * 4 }, + .src = {{ 0x01020304 }}, + .dst_pitches = { TEST_USE_DEFAULT_PITCH }, + .expected = {{ 0x01020304 }}, + }, + { + .name = "single_pixel_source_buffer", + .format = DRM_FORMAT_XRGB8888_A8, + .clip = DRM_RECT_INIT(0, 0, 1, 1), + .src_pitches = { 1 * 4, 1 }, + .src = { + { 0x01020304 }, + { 0xFFFFFF01 }, + }, + .dst_pitches = { TEST_USE_DEFAULT_PITCH }, + .expected = { + { 0x01020304 }, + { 0x00000001 }, + }, + }, + { + .name = "single_pixel_source_buffer", + .format = DRM_FORMAT_YUV444, + .clip = DRM_RECT_INIT(0, 0, 1, 1), + .src_pitches = { 1, 1, 1 }, + .src = { + { 0xFFFFFF01 }, + { 0xFFFFFF01 }, + { 0xFFFFFF01 }, + }, + .dst_pitches = { TEST_USE_DEFAULT_PITCH }, + .expected = { + { 0x00000001 }, + { 0x00000001 }, + { 0x00000001 }, + }, + }, + { + .name = "single_pixel_clip_rectangle", + .format = DRM_FORMAT_XBGR8888, + .clip = DRM_RECT_INIT(1, 1, 1, 1), + .src_pitches = { 2 * 4 }, + .src = { + { + 0x00000000, 0x00000000, + 0x00000000, 0x01020304, + }, + }, + .dst_pitches = { TEST_USE_DEFAULT_PITCH }, + .expected = { + { 0x01020304 }, + }, + }, + { + .name = "single_pixel_clip_rectangle", + .format = DRM_FORMAT_XRGB8888_A8, + .clip = DRM_RECT_INIT(1, 1, 1, 1), + .src_pitches = { 2 * 4, 2 * 1 }, + .src = { + { + 0x00000000, 0x00000000, + 0x00000000, 0x01020304, + }, + { 0x01000000 }, + }, + .dst_pitches = { TEST_USE_DEFAULT_PITCH }, + .expected = { + { 0x01020304 }, + { 0x00000001 }, + }, + }, + { + .name = "single_pixel_clip_rectangle", + .format = DRM_FORMAT_YUV444, + .clip = DRM_RECT_INIT(1, 1, 1, 1), + .src_pitches = { 2 * 1, 2 * 1, 2 * 1 }, + .src = { + { 0x01000000 }, + { 0x01000000 }, + { 0x01000000 }, + }, + .dst_pitches = { TEST_USE_DEFAULT_PITCH }, + .expected = { + { 0x00000001 }, + { 0x00000001 }, + { 0x00000001 }, + }, + }, + { + .name = "well_known_colors", + .format = DRM_FORMAT_XBGR8888, + .clip = DRM_RECT_INIT(1, 1, 2, 4), + .src_pitches = { 4 * 4 }, + .src = { + { + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x11FFFFFF, 0x22000000, 0x00000000, + 0x00000000, 0x33FF0000, 0x4400FF00, 0x00000000, + 0x00000000, 0x550000FF, 0x66FF00FF, 0x00000000, + 0x00000000, 0x77FFFF00, 0x8800FFFF, 0x00000000, + }, + }, + .dst_pitches = { TEST_USE_DEFAULT_PITCH }, + .expected = { + { + 0x11FFFFFF, 0x22000000, + 0x33FF0000, 0x4400FF00, + 0x550000FF, 0x66FF00FF, + 0x77FFFF00, 0x8800FFFF, + }, + }, + }, + { + .name = "well_known_colors", + .format = DRM_FORMAT_XRGB8888_A8, + .clip = DRM_RECT_INIT(1, 1, 2, 4), + .src_pitches = { 4 * 4, 4 * 1 }, + .src = { + { + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0xFFFFFFFF, 0xFF000000, 0x00000000, + 0x00000000, 0xFFFF0000, 0xFF00FF00, 0x00000000, + 0x00000000, 0xFF0000FF, 0xFFFF00FF, 0x00000000, + 0x00000000, 0xFFFFFF00, 0xFF00FFFF, 0x00000000, + }, + { + 0x00000000, + 0x00221100, + 0x00443300, + 0x00665500, + 0x00887700, + }, + }, + .dst_pitches = { TEST_USE_DEFAULT_PITCH }, + .expected = { + { + 0xFFFFFFFF, 0xFF000000, + 0xFFFF0000, 0xFF00FF00, + 0xFF0000FF, 0xFFFF00FF, + 0xFFFFFF00, 0xFF00FFFF, + }, + { + 0x44332211, + 0x88776655, + }, + }, + }, + { + .name = "well_known_colors", + .format = DRM_FORMAT_YUV444, + .clip = DRM_RECT_INIT(1, 1, 2, 4), + .src_pitches = { 4 * 1, 4 * 1, 4 * 1 }, + .src = { + { + 0x00000000, + 0x0000FF00, + 0x00954C00, + 0x00691D00, + 0x00B2E100, + }, + { + 0x00000000, + 0x00000000, + 0x00BEDE00, + 0x00436500, + 0x00229B00, + }, + { + 0x00000000, + 0x00000000, + 0x007E9C00, + 0x0083E700, + 0x00641A00, + }, + }, + .dst_pitches = { TEST_USE_DEFAULT_PITCH }, + .expected = { + { + 0x954C00FF, + 0xB2E1691D, + }, + { + 0xBEDE0000, + 0x229B4365, + }, + { + 0x7E9C0000, + 0x641A83E7, + }, + }, + }, + { + .name = "destination_pitch", + .format = DRM_FORMAT_XBGR8888, + .clip = DRM_RECT_INIT(0, 0, 3, 3), + .src_pitches = { 3 * 4 }, + .src = { + { + 0xA10E449C, 0xB1114D05, 0xC1A8F303, + 0xD16CF073, 0xA20E449C, 0xB2114D05, + 0xC2A80303, 0xD26CF073, 0xA30E449C, + }, + }, + .dst_pitches = { 5 * 4 }, + .expected = { + { + 0xA10E449C, 0xB1114D05, 0xC1A8F303, 0x00000000, 0x00000000, + 0xD16CF073, 0xA20E449C, 0xB2114D05, 0x00000000, 0x00000000, + 0xC2A80303, 0xD26CF073, 0xA30E449C, 0x00000000, 0x00000000, + }, + }, + }, + { + .name = "destination_pitch", + .format = DRM_FORMAT_XRGB8888_A8, + .clip = DRM_RECT_INIT(0, 0, 3, 3), + .src_pitches = { 3 * 4, 3 * 1 }, + .src = { + { + 0xFF0E449C, 0xFF114D05, 0xFFA8F303, + 0xFF6CF073, 0xFF0E449C, 0xFF114D05, + 0xFFA80303, 0xFF6CF073, 0xFF0E449C, + }, + { + 0xB2C1B1A1, + 0xD2A3D1A2, + 0xFFFFFFC2, + }, + }, + .dst_pitches = { 5 * 4, 5 * 1 }, + .expected = { + { + 0xFF0E449C, 0xFF114D05, 0xFFA8F303, 0x00000000, 0x00000000, + 0xFF6CF073, 0xFF0E449C, 0xFF114D05, 0x00000000, 0x00000000, + 0xFFA80303, 0xFF6CF073, 0xFF0E449C, 0x00000000, 0x00000000, + }, + { + 0x00C1B1A1, + 0xD1A2B200, + 0xD2A30000, + 0xFF0000C2, + }, + }, + }, + { + .name = "destination_pitch", + .format = DRM_FORMAT_YUV444, + .clip = DRM_RECT_INIT(0, 0, 3, 3), + .src_pitches = { 3 * 1, 3 * 1, 3 * 1 }, + .src = { + { + 0xBAC1323D, + 0xBA34323D, + 0xFFFFFF3D, + }, + { + 0xE1ABEC2A, + 0xE1EAEC2A, + 0xFFFFFF2A, + }, + { + 0xBCEBE4D7, + 0xBC65E4D7, + 0xFFFFFFD7, + }, + }, + .dst_pitches = { 5 * 1, 5 * 1, 5 * 1 }, + .expected = { + { + 0x00C1323D, + 0x323DBA00, + 0xBA340000, + 0xFF00003D, + }, + { + 0x00ABEC2A, + 0xEC2AE100, + 0xE1EA0000, + 0xFF00002A, + }, + { + 0x00EBE4D7, + 0xE4D7BC00, + 0xBC650000, + 0xFF0000D7, + }, + }, + }, +}; + +static void fb_memcpy_case_desc(struct fb_memcpy_case *t, char *desc) +{ + snprintf(desc, KUNIT_PARAM_DESC_SIZE, "%s: %p4cc", t->name, &t->format); +} + +KUNIT_ARRAY_PARAM(fb_memcpy, fb_memcpy_cases, fb_memcpy_case_desc); + +static void drm_test_fb_memcpy(struct kunit *test) +{ + const struct fb_memcpy_case *params = test->param_value; + size_t dst_size[DRM_FORMAT_MAX_PLANES] = { 0 }; + u32 *buf[DRM_FORMAT_MAX_PLANES] = { 0 }; + __le32 *src_cp[DRM_FORMAT_MAX_PLANES] = { 0 }; + __le32 *expected[DRM_FORMAT_MAX_PLANES] = { 0 }; + struct iosys_map dst[DRM_FORMAT_MAX_PLANES]; + struct iosys_map src[DRM_FORMAT_MAX_PLANES]; + + struct drm_framebuffer fb = { + .format = drm_format_info(params->format), + }; + + memcpy(fb.pitches, params->src_pitches, DRM_FORMAT_MAX_PLANES * sizeof(int)); + + for (size_t i = 0; i < fb.format->num_planes; i++) { + dst_size[i] = conversion_buf_size(params->format, params->dst_pitches[i], + ¶ms->clip, i); + KUNIT_ASSERT_GT(test, dst_size[i], 0); + + buf[i] = kunit_kzalloc(test, dst_size[i], GFP_KERNEL); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, buf[i]); + iosys_map_set_vaddr(&dst[i], buf[i]); + + src_cp[i] = cpubuf_to_le32(test, params->src[i], TEST_BUF_SIZE); + iosys_map_set_vaddr(&src[i], src_cp[i]); + } + + const unsigned int *dst_pitches = params->dst_pitches[0] == TEST_USE_DEFAULT_PITCH ? NULL : + params->dst_pitches; + + drm_fb_memcpy(dst, dst_pitches, src, &fb, ¶ms->clip); + + for (size_t i = 0; i < fb.format->num_planes; i++) { + expected[i] = cpubuf_to_le32(test, params->expected[i], TEST_BUF_SIZE); + KUNIT_EXPECT_MEMEQ_MSG(test, buf[i], expected[i], dst_size[i], + "Failed expectation on plane %zu", i); + + memset(buf[i], 0, dst_size[i]); + } + + drm_fb_memcpy(dst, dst_pitches, src, &fb, ¶ms->clip); + + for (size_t i = 0; i < fb.format->num_planes; i++) { + expected[i] = cpubuf_to_le32(test, params->expected[i], TEST_BUF_SIZE); + KUNIT_EXPECT_MEMEQ_MSG(test, buf[i], expected[i], dst_size[i], + "Failed expectation on plane %zu", i); + } } static struct kunit_case drm_format_helper_test_cases[] = { @@ -797,9 +1715,16 @@ static struct kunit_case drm_format_helper_test_cases[] = { KUNIT_CASE_PARAM(drm_test_fb_xrgb8888_to_argb1555, convert_xrgb8888_gen_params), KUNIT_CASE_PARAM(drm_test_fb_xrgb8888_to_rgba5551, convert_xrgb8888_gen_params), KUNIT_CASE_PARAM(drm_test_fb_xrgb8888_to_rgb888, convert_xrgb8888_gen_params), + KUNIT_CASE_PARAM(drm_test_fb_xrgb8888_to_bgr888, convert_xrgb8888_gen_params), KUNIT_CASE_PARAM(drm_test_fb_xrgb8888_to_argb8888, convert_xrgb8888_gen_params), KUNIT_CASE_PARAM(drm_test_fb_xrgb8888_to_xrgb2101010, convert_xrgb8888_gen_params), KUNIT_CASE_PARAM(drm_test_fb_xrgb8888_to_argb2101010, convert_xrgb8888_gen_params), + KUNIT_CASE_PARAM(drm_test_fb_xrgb8888_to_mono, convert_xrgb8888_gen_params), + KUNIT_CASE_PARAM(drm_test_fb_swab, convert_xrgb8888_gen_params), + KUNIT_CASE_PARAM(drm_test_fb_xrgb8888_to_xbgr8888, convert_xrgb8888_gen_params), + KUNIT_CASE_PARAM(drm_test_fb_xrgb8888_to_abgr8888, convert_xrgb8888_gen_params), + KUNIT_CASE_PARAM(drm_test_fb_clip_offset, clip_offset_gen_params), + KUNIT_CASE_PARAM(drm_test_fb_memcpy, fb_memcpy_gen_params), {} }; diff --git a/drivers/gpu/drm/tests/drm_format_test.c b/drivers/gpu/drm/tests/drm_format_test.c index ec6996ce819a..22e2371fd66a 100644 --- a/drivers/gpu/drm/tests/drm_format_test.c +++ b/drivers/gpu/drm/tests/drm_format_test.c @@ -356,4 +356,5 @@ static struct kunit_suite drm_format_test_suite = { kunit_test_suite(drm_format_test_suite); +MODULE_DESCRIPTION("Test cases for the drm_format functions"); MODULE_LICENSE("GPL"); diff --git a/drivers/gpu/drm/tests/drm_framebuffer_test.c b/drivers/gpu/drm/tests/drm_framebuffer_test.c index df235b7fdaa5..9b8e01e8cd91 100644 --- a/drivers/gpu/drm/tests/drm_framebuffer_test.c +++ b/drivers/gpu/drm/tests/drm_framebuffer_test.c @@ -5,11 +5,15 @@ * Copyright (c) 2022 Maíra Canal <mairacanal@riseup.net> */ +#include <kunit/device.h> #include <kunit/test.h> #include <drm/drm_device.h> +#include <drm/drm_drv.h> #include <drm/drm_mode.h> +#include <drm/drm_framebuffer.h> #include <drm/drm_fourcc.h> +#include <drm/drm_kunit_helpers.h> #include <drm/drm_print.h> #include "../drm_crtc_internal.h" @@ -19,6 +23,8 @@ #define MIN_HEIGHT 4 #define MAX_HEIGHT 4096 +#define DRM_MODE_FB_INVALID BIT(2) + struct drm_framebuffer_test { int buffer_created; struct drm_mode_fb_cmd2 cmd; @@ -83,6 +89,24 @@ static const struct drm_framebuffer_test drm_framebuffer_create_cases[] = { .pitches = { 4 * MAX_WIDTH, 0, 0 }, } }, + +/* + * All entries in members that represents per-plane values (@modifier, @handles, + * @pitches and @offsets) must be zero when unused. + */ +{ .buffer_created = 0, .name = "ABGR8888 Buffer offset for inexistent plane", + .cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_ABGR8888, + .handles = { 1, 0, 0 }, .offsets = { UINT_MAX / 2, UINT_MAX / 2, 0 }, + .pitches = { 4 * MAX_WIDTH, 0, 0 }, .flags = DRM_MODE_FB_MODIFIERS, + } +}, + +{ .buffer_created = 0, .name = "ABGR8888 Invalid flag", + .cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_ABGR8888, + .handles = { 1, 0, 0 }, .offsets = { UINT_MAX / 2, 0, 0 }, + .pitches = { 4 * MAX_WIDTH, 0, 0 }, .flags = DRM_MODE_FB_INVALID, + } +}, { .buffer_created = 1, .name = "ABGR8888 Set DRM_MODE_FB_MODIFIERS without modifiers", .cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_ABGR8888, .handles = { 1, 0, 0 }, .offsets = { UINT_MAX / 2, 0, 0 }, @@ -178,13 +202,13 @@ static const struct drm_framebuffer_test drm_framebuffer_create_cases[] = { .handles = { 1, 1, 1 }, .pitches = { 600, 600, 600 }, } }, -{ .buffer_created = 1, .name = "YVU420 Normal sizes", +{ .buffer_created = 1, .name = "YVU420 DRM_MODE_FB_MODIFIERS set without modifier", .cmd = { .width = 600, .height = 600, .pixel_format = DRM_FORMAT_YVU420, .handles = { 1, 1, 1 }, .flags = DRM_MODE_FB_MODIFIERS, .pitches = { 600, 300, 300 }, } }, -{ .buffer_created = 1, .name = "YVU420 DRM_MODE_FB_MODIFIERS set without modifier", +{ .buffer_created = 1, .name = "YVU420 Normal sizes", .cmd = { .width = 600, .height = 600, .pixel_format = DRM_FORMAT_YVU420, .handles = { 1, 1, 1 }, .pitches = { 600, 300, 300 }, } @@ -262,6 +286,13 @@ static const struct drm_framebuffer_test drm_framebuffer_create_cases[] = { .pitches = { MAX_WIDTH, DIV_ROUND_UP(MAX_WIDTH, 2), DIV_ROUND_UP(MAX_WIDTH, 2) }, } }, +{ .buffer_created = 0, .name = "YUV420_10BIT Invalid modifier(DRM_FORMAT_MOD_LINEAR)", + .cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_YUV420_10BIT, + .handles = { 1, 0, 0 }, .flags = DRM_MODE_FB_MODIFIERS, + .modifier = { DRM_FORMAT_MOD_LINEAR, 0, 0 }, + .pitches = { MAX_WIDTH, 0, 0 }, + } +}, { .buffer_created = 1, .name = "X0L2 Normal sizes", .cmd = { .width = 600, .height = 600, .pixel_format = DRM_FORMAT_X0L2, .handles = { 1, 0, 0 }, .pitches = { 1200, 0, 0 } @@ -317,12 +348,27 @@ static const struct drm_framebuffer_test drm_framebuffer_create_cases[] = { }, }; +/* + * This struct is intended to provide a way to mocked functions communicate + * with the outer test when it can't be achieved by using its return value. In + * this way, the functions that receive the mocked drm_device, for example, can + * grab a reference to this and actually return something to be used on some + * expectation. + */ +struct drm_framebuffer_test_priv { + struct drm_device dev; + bool buffer_created; + bool buffer_freed; +}; + static struct drm_framebuffer *fb_create_mock(struct drm_device *dev, struct drm_file *file_priv, + const struct drm_format_info *info, const struct drm_mode_fb_cmd2 *mode_cmd) { - int *buffer_created = dev->dev_private; - *buffer_created = 1; + struct drm_framebuffer_test_priv *priv = container_of(dev, typeof(*priv), dev); + + priv->buffer_created = true; return ERR_PTR(-EINVAL); } @@ -332,42 +378,338 @@ static struct drm_mode_config_funcs mock_config_funcs = { static int drm_framebuffer_test_init(struct kunit *test) { - struct drm_device *mock; + struct device *parent; + struct drm_framebuffer_test_priv *priv; + struct drm_device *dev; + + parent = drm_kunit_helper_alloc_device(test); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, parent); - mock = kunit_kzalloc(test, sizeof(*mock), GFP_KERNEL); - KUNIT_ASSERT_NOT_ERR_OR_NULL(test, mock); + priv = drm_kunit_helper_alloc_drm_device(test, parent, typeof(*priv), + dev, 0); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, priv); + dev = &priv->dev; - mock->mode_config.min_width = MIN_WIDTH; - mock->mode_config.max_width = MAX_WIDTH; - mock->mode_config.min_height = MIN_HEIGHT; - mock->mode_config.max_height = MAX_HEIGHT; - mock->mode_config.funcs = &mock_config_funcs; + dev->mode_config.min_width = MIN_WIDTH; + dev->mode_config.max_width = MAX_WIDTH; + dev->mode_config.min_height = MIN_HEIGHT; + dev->mode_config.max_height = MAX_HEIGHT; + dev->mode_config.funcs = &mock_config_funcs; - test->priv = mock; + test->priv = priv; return 0; } static void drm_test_framebuffer_create(struct kunit *test) { const struct drm_framebuffer_test *params = test->param_value; - struct drm_device *mock = test->priv; - int buffer_created = 0; + struct drm_framebuffer_test_priv *priv = test->priv; + struct drm_device *dev = &priv->dev; - mock->dev_private = &buffer_created; - drm_internal_framebuffer_create(mock, ¶ms->cmd, NULL); - KUNIT_EXPECT_EQ(test, params->buffer_created, buffer_created); + priv->buffer_created = false; + drm_internal_framebuffer_create(dev, ¶ms->cmd, NULL); + KUNIT_EXPECT_EQ(test, params->buffer_created, priv->buffer_created); } static void drm_framebuffer_test_to_desc(const struct drm_framebuffer_test *t, char *desc) { - strcpy(desc, t->name); + strscpy(desc, t->name, KUNIT_PARAM_DESC_SIZE); } KUNIT_ARRAY_PARAM(drm_framebuffer_create, drm_framebuffer_create_cases, drm_framebuffer_test_to_desc); +/* Tries to create a framebuffer with modifiers without drm_device supporting it */ +static void drm_test_framebuffer_modifiers_not_supported(struct kunit *test) +{ + struct drm_framebuffer_test_priv *priv = test->priv; + struct drm_device *dev = &priv->dev; + struct drm_framebuffer *fb; + + /* A valid cmd with modifier */ + struct drm_mode_fb_cmd2 cmd = { + .width = MAX_WIDTH, .height = MAX_HEIGHT, + .pixel_format = DRM_FORMAT_ABGR8888, .handles = { 1, 0, 0 }, + .offsets = { UINT_MAX / 2, 0, 0 }, .pitches = { 4 * MAX_WIDTH, 0, 0 }, + .flags = DRM_MODE_FB_MODIFIERS, + }; + + priv->buffer_created = false; + dev->mode_config.fb_modifiers_not_supported = 1; + + fb = drm_internal_framebuffer_create(dev, &cmd, NULL); + KUNIT_EXPECT_EQ(test, priv->buffer_created, false); + KUNIT_EXPECT_EQ(test, PTR_ERR(fb), -EINVAL); +} + +/* Parameters for testing drm_framebuffer_check_src_coords function */ +struct drm_framebuffer_check_src_coords_case { + const char *name; + const int expect; + const unsigned int fb_size; + const uint32_t src_x; + const uint32_t src_y; + + /* Deltas to be applied on source */ + const uint32_t dsrc_w; + const uint32_t dsrc_h; +}; + +static const struct drm_framebuffer_check_src_coords_case +drm_framebuffer_check_src_coords_cases[] = { + { .name = "Success: source fits into fb", + .expect = 0, + }, + { .name = "Fail: overflowing fb with x-axis coordinate", + .expect = -ENOSPC, .src_x = 1, .fb_size = UINT_MAX, + }, + { .name = "Fail: overflowing fb with y-axis coordinate", + .expect = -ENOSPC, .src_y = 1, .fb_size = UINT_MAX, + }, + { .name = "Fail: overflowing fb with source width", + .expect = -ENOSPC, .dsrc_w = 1, .fb_size = UINT_MAX - 1, + }, + { .name = "Fail: overflowing fb with source height", + .expect = -ENOSPC, .dsrc_h = 1, .fb_size = UINT_MAX - 1, + }, +}; + +static void drm_test_framebuffer_check_src_coords(struct kunit *test) +{ + const struct drm_framebuffer_check_src_coords_case *params = test->param_value; + const uint32_t src_x = params->src_x; + const uint32_t src_y = params->src_y; + const uint32_t src_w = (params->fb_size << 16) + params->dsrc_w; + const uint32_t src_h = (params->fb_size << 16) + params->dsrc_h; + const struct drm_framebuffer fb = { + .width = params->fb_size, + .height = params->fb_size + }; + int ret; + + ret = drm_framebuffer_check_src_coords(src_x, src_y, src_w, src_h, &fb); + KUNIT_EXPECT_EQ(test, ret, params->expect); +} + +static void +check_src_coords_test_to_desc(const struct drm_framebuffer_check_src_coords_case *t, + char *desc) +{ + strscpy(desc, t->name, KUNIT_PARAM_DESC_SIZE); +} + +KUNIT_ARRAY_PARAM(check_src_coords, drm_framebuffer_check_src_coords_cases, + check_src_coords_test_to_desc); + +/* + * Test if drm_framebuffer_cleanup() really pops out the framebuffer object + * from device's fb_list and decrement the number of framebuffers for that + * device, which is the only things it does. + */ +static void drm_test_framebuffer_cleanup(struct kunit *test) +{ + struct drm_framebuffer_test_priv *priv = test->priv; + struct drm_device *dev = &priv->dev; + struct list_head *fb_list = &dev->mode_config.fb_list; + struct drm_format_info format = { }; + struct drm_framebuffer fb1 = { .dev = dev, .format = &format }; + struct drm_framebuffer fb2 = { .dev = dev, .format = &format }; + + /* This will result on [fb_list] -> fb2 -> fb1 */ + drm_framebuffer_init(dev, &fb1, NULL); + drm_framebuffer_init(dev, &fb2, NULL); + + drm_framebuffer_cleanup(&fb1); + + /* Now fb2 is the only one element on fb_list */ + KUNIT_ASSERT_TRUE(test, list_is_singular(&fb2.head)); + KUNIT_ASSERT_EQ(test, dev->mode_config.num_fb, 1); + + drm_framebuffer_cleanup(&fb2); + + /* Now fb_list is empty */ + KUNIT_ASSERT_TRUE(test, list_empty(fb_list)); + KUNIT_ASSERT_EQ(test, dev->mode_config.num_fb, 0); +} + +/* + * Initialize a framebuffer, lookup its id and test if the returned reference + * matches. + */ +static void drm_test_framebuffer_lookup(struct kunit *test) +{ + struct drm_framebuffer_test_priv *priv = test->priv; + struct drm_device *dev = &priv->dev; + struct drm_format_info format = { }; + struct drm_framebuffer expected_fb = { .dev = dev, .format = &format }; + struct drm_framebuffer *returned_fb; + uint32_t id = 0; + int ret; + + ret = drm_framebuffer_init(dev, &expected_fb, NULL); + KUNIT_ASSERT_EQ(test, ret, 0); + id = expected_fb.base.id; + + /* Looking for expected_fb */ + returned_fb = drm_framebuffer_lookup(dev, NULL, id); + KUNIT_EXPECT_PTR_EQ(test, returned_fb, &expected_fb); + drm_framebuffer_put(returned_fb); + + drm_framebuffer_cleanup(&expected_fb); +} + +/* Try to lookup an id that is not linked to a framebuffer */ +static void drm_test_framebuffer_lookup_inexistent(struct kunit *test) +{ + struct drm_framebuffer_test_priv *priv = test->priv; + struct drm_device *dev = &priv->dev; + struct drm_framebuffer *fb; + uint32_t id = 0; + + /* Looking for an inexistent framebuffer */ + fb = drm_framebuffer_lookup(dev, NULL, id); + KUNIT_EXPECT_NULL(test, fb); +} + +/* + * Test if drm_framebuffer_init initializes the framebuffer successfully, + * asserting that its modeset object struct and its refcount are correctly + * set and that strictly one framebuffer is initialized. + */ +static void drm_test_framebuffer_init(struct kunit *test) +{ + struct drm_framebuffer_test_priv *priv = test->priv; + struct drm_device *dev = &priv->dev; + struct drm_format_info format = { }; + struct drm_framebuffer fb1 = { .dev = dev, .format = &format }; + struct drm_framebuffer_funcs funcs = { }; + int ret; + + ret = drm_framebuffer_init(dev, &fb1, &funcs); + KUNIT_ASSERT_EQ(test, ret, 0); + + /* Check if fb->funcs is actually set to the drm_framebuffer_funcs passed on */ + KUNIT_EXPECT_PTR_EQ(test, fb1.funcs, &funcs); + + /* The fb->comm must be set to the current running process */ + KUNIT_EXPECT_STREQ(test, fb1.comm, current->comm); + + /* The fb->base must be successfully initialized */ + KUNIT_EXPECT_NE(test, fb1.base.id, 0); + KUNIT_EXPECT_EQ(test, fb1.base.type, DRM_MODE_OBJECT_FB); + KUNIT_EXPECT_EQ(test, kref_read(&fb1.base.refcount), 1); + KUNIT_EXPECT_PTR_EQ(test, fb1.base.free_cb, &drm_framebuffer_free); + + /* There must be just that one fb initialized */ + KUNIT_EXPECT_EQ(test, dev->mode_config.num_fb, 1); + KUNIT_EXPECT_PTR_EQ(test, dev->mode_config.fb_list.prev, &fb1.head); + KUNIT_EXPECT_PTR_EQ(test, dev->mode_config.fb_list.next, &fb1.head); + + drm_framebuffer_cleanup(&fb1); +} + +/* Try to init a framebuffer without setting its format */ +static void drm_test_framebuffer_init_bad_format(struct kunit *test) +{ + struct drm_framebuffer_test_priv *priv = test->priv; + struct drm_device *dev = &priv->dev; + struct drm_framebuffer fb1 = { .dev = dev, .format = NULL }; + struct drm_framebuffer_funcs funcs = { }; + int ret; + + /* Fails if fb.format isn't set */ + ret = drm_framebuffer_init(dev, &fb1, &funcs); + KUNIT_EXPECT_EQ(test, ret, -EINVAL); +} + +/* + * Test calling drm_framebuffer_init() passing a framebuffer linked to a + * different drm_device parent from the one passed on the first argument, which + * must fail. + */ +static void drm_test_framebuffer_init_dev_mismatch(struct kunit *test) +{ + struct drm_framebuffer_test_priv *priv = test->priv; + struct drm_device *right_dev = &priv->dev; + struct drm_device *wrong_dev; + struct device *wrong_dev_parent; + struct drm_format_info format = { }; + struct drm_framebuffer fb1 = { .dev = right_dev, .format = &format }; + struct drm_framebuffer_funcs funcs = { }; + int ret; + + wrong_dev_parent = kunit_device_register(test, "drm-kunit-wrong-device-mock"); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, wrong_dev_parent); + + wrong_dev = __drm_kunit_helper_alloc_drm_device(test, wrong_dev_parent, + sizeof(struct drm_device), + 0, 0); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, wrong_dev); + + /* Fails if fb->dev doesn't point to the drm_device passed on first arg */ + ret = drm_framebuffer_init(wrong_dev, &fb1, &funcs); + KUNIT_EXPECT_EQ(test, ret, -EINVAL); +} + +static void destroy_free_mock(struct drm_framebuffer *fb) +{ + struct drm_framebuffer_test_priv *priv = container_of(fb->dev, typeof(*priv), dev); + + priv->buffer_freed = true; +} + +static struct drm_framebuffer_funcs framebuffer_funcs_free_mock = { + .destroy = destroy_free_mock, +}; + +/* + * In summary, the drm_framebuffer_free() function must implicitly call + * fb->funcs->destroy() and garantee that the framebufer object is unregistered + * from the drm_device idr pool. + */ +static void drm_test_framebuffer_free(struct kunit *test) +{ + struct drm_framebuffer_test_priv *priv = test->priv; + struct drm_device *dev = &priv->dev; + struct drm_mode_object *obj; + struct drm_framebuffer fb = { + .dev = dev, + .funcs = &framebuffer_funcs_free_mock, + }; + int id, ret; + + priv->buffer_freed = false; + + /* + * Mock a framebuffer that was not unregistered at the moment of the + * drm_framebuffer_free() call. + */ + ret = drm_mode_object_add(dev, &fb.base, DRM_MODE_OBJECT_FB); + KUNIT_ASSERT_EQ(test, ret, 0); + id = fb.base.id; + + drm_framebuffer_free(&fb.base.refcount); + + /* The framebuffer object must be unregistered */ + obj = drm_mode_object_find(dev, NULL, id, DRM_MODE_OBJECT_FB); + KUNIT_EXPECT_PTR_EQ(test, obj, NULL); + KUNIT_EXPECT_EQ(test, fb.base.id, 0); + + /* Test if fb->funcs->destroy() was called */ + KUNIT_EXPECT_EQ(test, priv->buffer_freed, true); +} + static struct kunit_case drm_framebuffer_tests[] = { + KUNIT_CASE_PARAM(drm_test_framebuffer_check_src_coords, check_src_coords_gen_params), + KUNIT_CASE(drm_test_framebuffer_cleanup), KUNIT_CASE_PARAM(drm_test_framebuffer_create, drm_framebuffer_create_gen_params), + KUNIT_CASE(drm_test_framebuffer_free), + KUNIT_CASE(drm_test_framebuffer_init), + KUNIT_CASE(drm_test_framebuffer_init_bad_format), + KUNIT_CASE(drm_test_framebuffer_init_dev_mismatch), + KUNIT_CASE(drm_test_framebuffer_lookup), + KUNIT_CASE(drm_test_framebuffer_lookup_inexistent), + KUNIT_CASE(drm_test_framebuffer_modifiers_not_supported), { } }; @@ -379,4 +721,5 @@ static struct kunit_suite drm_framebuffer_test_suite = { kunit_test_suite(drm_framebuffer_test_suite); +MODULE_DESCRIPTION("Test cases for the drm_framebuffer functions"); MODULE_LICENSE("GPL"); diff --git a/drivers/gpu/drm/tests/drm_gem_shmem_test.c b/drivers/gpu/drm/tests/drm_gem_shmem_test.c new file mode 100644 index 000000000000..68f2c3162354 --- /dev/null +++ b/drivers/gpu/drm/tests/drm_gem_shmem_test.c @@ -0,0 +1,385 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * KUnit test suite for GEM objects backed by shmem buffers + * + * Copyright (C) 2023 Red Hat, Inc. + * + * Author: Marco Pagani <marpagan@redhat.com> + */ + +#include <linux/dma-buf.h> +#include <linux/iosys-map.h> +#include <linux/sizes.h> + +#include <kunit/test.h> + +#include <drm/drm_device.h> +#include <drm/drm_drv.h> +#include <drm/drm_gem.h> +#include <drm/drm_gem_shmem_helper.h> +#include <drm/drm_kunit_helpers.h> + +#define TEST_SIZE SZ_1M +#define TEST_BYTE 0xae + +/* + * Wrappers to avoid cast warnings when passing action functions + * directly to kunit_add_action(). + */ +KUNIT_DEFINE_ACTION_WRAPPER(kfree_wrapper, kfree, const void *); + +KUNIT_DEFINE_ACTION_WRAPPER(sg_free_table_wrapper, sg_free_table, + struct sg_table *); + +KUNIT_DEFINE_ACTION_WRAPPER(drm_gem_shmem_free_wrapper, drm_gem_shmem_free, + struct drm_gem_shmem_object *); + +/* + * Test creating a shmem GEM object backed by shmem buffer. The test + * case succeeds if the GEM object is successfully allocated with the + * shmem file node and object functions attributes set, and the size + * attribute is equal to the correct size. + */ +static void drm_gem_shmem_test_obj_create(struct kunit *test) +{ + struct drm_device *drm_dev = test->priv; + struct drm_gem_shmem_object *shmem; + + shmem = drm_gem_shmem_create(drm_dev, TEST_SIZE); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, shmem); + KUNIT_EXPECT_EQ(test, shmem->base.size, TEST_SIZE); + KUNIT_EXPECT_NOT_NULL(test, shmem->base.filp); + KUNIT_EXPECT_NOT_NULL(test, shmem->base.funcs); + + drm_gem_shmem_free(shmem); +} + +/* + * Test creating a shmem GEM object from a scatter/gather table exported + * via a DMA-BUF. The test case succeed if the GEM object is successfully + * created with the shmem file node attribute equal to NULL and the sgt + * attribute pointing to the scatter/gather table that has been imported. + */ +static void drm_gem_shmem_test_obj_create_private(struct kunit *test) +{ + struct drm_device *drm_dev = test->priv; + struct drm_gem_shmem_object *shmem; + struct drm_gem_object *gem_obj; + struct dma_buf buf_mock; + struct dma_buf_attachment attach_mock; + struct sg_table *sgt; + char *buf; + int ret; + + /* Create a mock scatter/gather table */ + buf = kunit_kzalloc(test, TEST_SIZE, GFP_KERNEL); + KUNIT_ASSERT_NOT_NULL(test, buf); + + sgt = kzalloc(sizeof(*sgt), GFP_KERNEL); + KUNIT_ASSERT_NOT_NULL(test, sgt); + + ret = kunit_add_action_or_reset(test, kfree_wrapper, sgt); + KUNIT_ASSERT_EQ(test, ret, 0); + + ret = sg_alloc_table(sgt, 1, GFP_KERNEL); + KUNIT_ASSERT_EQ(test, ret, 0); + + ret = kunit_add_action_or_reset(test, sg_free_table_wrapper, sgt); + KUNIT_ASSERT_EQ(test, ret, 0); + + sg_init_one(sgt->sgl, buf, TEST_SIZE); + + /* + * Set the DMA mask to 64-bits and map the sgtables + * otherwise drm_gem_shmem_free will cause a warning + * on debug kernels. + */ + ret = dma_set_mask(drm_dev->dev, DMA_BIT_MASK(64)); + KUNIT_ASSERT_EQ(test, ret, 0); + + ret = dma_map_sgtable(drm_dev->dev, sgt, DMA_BIDIRECTIONAL, 0); + KUNIT_ASSERT_EQ(test, ret, 0); + + /* Init a mock DMA-BUF */ + buf_mock.size = TEST_SIZE; + attach_mock.dmabuf = &buf_mock; + + gem_obj = drm_gem_shmem_prime_import_sg_table(drm_dev, &attach_mock, sgt); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, gem_obj); + KUNIT_EXPECT_EQ(test, gem_obj->size, TEST_SIZE); + KUNIT_EXPECT_NULL(test, gem_obj->filp); + KUNIT_EXPECT_NOT_NULL(test, gem_obj->funcs); + + /* The scatter/gather table will be freed by drm_gem_shmem_free */ + kunit_remove_action(test, sg_free_table_wrapper, sgt); + kunit_remove_action(test, kfree_wrapper, sgt); + + shmem = to_drm_gem_shmem_obj(gem_obj); + KUNIT_EXPECT_PTR_EQ(test, shmem->sgt, sgt); + + drm_gem_shmem_free(shmem); +} + +/* + * Test pinning backing pages for a shmem GEM object. The test case + * succeeds if a suitable number of backing pages are allocated, and + * the pages table counter attribute is increased by one. + */ +static void drm_gem_shmem_test_pin_pages(struct kunit *test) +{ + struct drm_device *drm_dev = test->priv; + struct drm_gem_shmem_object *shmem; + int i, ret; + + shmem = drm_gem_shmem_create(drm_dev, TEST_SIZE); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, shmem); + KUNIT_EXPECT_NULL(test, shmem->pages); + KUNIT_EXPECT_EQ(test, refcount_read(&shmem->pages_use_count), 0); + + ret = kunit_add_action_or_reset(test, drm_gem_shmem_free_wrapper, shmem); + KUNIT_ASSERT_EQ(test, ret, 0); + + ret = drm_gem_shmem_pin(shmem); + KUNIT_ASSERT_EQ(test, ret, 0); + KUNIT_ASSERT_NOT_NULL(test, shmem->pages); + KUNIT_EXPECT_EQ(test, refcount_read(&shmem->pages_use_count), 1); + + for (i = 0; i < (shmem->base.size >> PAGE_SHIFT); i++) + KUNIT_ASSERT_NOT_NULL(test, shmem->pages[i]); + + drm_gem_shmem_unpin(shmem); + KUNIT_EXPECT_NULL(test, shmem->pages); + KUNIT_EXPECT_EQ(test, refcount_read(&shmem->pages_use_count), 0); +} + +/* + * Test creating a virtual mapping for a shmem GEM object. The test + * case succeeds if the backing memory is mapped and the reference + * counter for virtual mapping is increased by one. Moreover, the test + * case writes and then reads a test pattern over the mapped memory. + */ +static void drm_gem_shmem_test_vmap(struct kunit *test) +{ + struct drm_device *drm_dev = test->priv; + struct drm_gem_shmem_object *shmem; + struct iosys_map map; + int ret, i; + + shmem = drm_gem_shmem_create(drm_dev, TEST_SIZE); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, shmem); + KUNIT_EXPECT_NULL(test, shmem->vaddr); + KUNIT_EXPECT_EQ(test, refcount_read(&shmem->vmap_use_count), 0); + + ret = kunit_add_action_or_reset(test, drm_gem_shmem_free_wrapper, shmem); + KUNIT_ASSERT_EQ(test, ret, 0); + + ret = drm_gem_shmem_vmap_locked(shmem, &map); + KUNIT_ASSERT_EQ(test, ret, 0); + KUNIT_ASSERT_NOT_NULL(test, shmem->vaddr); + KUNIT_ASSERT_FALSE(test, iosys_map_is_null(&map)); + KUNIT_EXPECT_EQ(test, refcount_read(&shmem->vmap_use_count), 1); + + iosys_map_memset(&map, 0, TEST_BYTE, TEST_SIZE); + for (i = 0; i < TEST_SIZE; i++) + KUNIT_EXPECT_EQ(test, iosys_map_rd(&map, i, u8), TEST_BYTE); + + drm_gem_shmem_vunmap_locked(shmem, &map); + KUNIT_EXPECT_NULL(test, shmem->vaddr); + KUNIT_EXPECT_EQ(test, refcount_read(&shmem->vmap_use_count), 0); +} + +/* + * Test exporting a scatter/gather table of pinned pages suitable for + * PRIME usage from a shmem GEM object. The test case succeeds if a + * scatter/gather table large enough to accommodate the backing memory + * is successfully exported. + */ +static void drm_gem_shmem_test_get_pages_sgt(struct kunit *test) +{ + struct drm_device *drm_dev = test->priv; + struct drm_gem_shmem_object *shmem; + struct sg_table *sgt; + struct scatterlist *sg; + unsigned int si, len = 0; + int ret; + + shmem = drm_gem_shmem_create(drm_dev, TEST_SIZE); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, shmem); + + ret = kunit_add_action_or_reset(test, drm_gem_shmem_free_wrapper, shmem); + KUNIT_ASSERT_EQ(test, ret, 0); + + ret = drm_gem_shmem_pin(shmem); + KUNIT_ASSERT_EQ(test, ret, 0); + + sgt = drm_gem_shmem_get_sg_table(shmem); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, sgt); + KUNIT_EXPECT_NULL(test, shmem->sgt); + + ret = kunit_add_action_or_reset(test, kfree_wrapper, sgt); + KUNIT_ASSERT_EQ(test, ret, 0); + + ret = kunit_add_action_or_reset(test, sg_free_table_wrapper, sgt); + KUNIT_ASSERT_EQ(test, ret, 0); + + for_each_sgtable_sg(sgt, sg, si) { + KUNIT_EXPECT_NOT_NULL(test, sg); + len += sg->length; + } + + KUNIT_EXPECT_GE(test, len, TEST_SIZE); +} + +/* + * Test pinning pages and exporting a scatter/gather table suitable for + * driver usage from a shmem GEM object. The test case succeeds if the + * backing pages are pinned and a scatter/gather table large enough to + * accommodate the backing memory is successfully exported. + */ +static void drm_gem_shmem_test_get_sg_table(struct kunit *test) +{ + struct drm_device *drm_dev = test->priv; + struct drm_gem_shmem_object *shmem; + struct sg_table *sgt; + struct scatterlist *sg; + unsigned int si, ret, len = 0; + + shmem = drm_gem_shmem_create(drm_dev, TEST_SIZE); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, shmem); + + ret = kunit_add_action_or_reset(test, drm_gem_shmem_free_wrapper, shmem); + KUNIT_ASSERT_EQ(test, ret, 0); + + /* The scatter/gather table will be freed by drm_gem_shmem_free */ + sgt = drm_gem_shmem_get_pages_sgt(shmem); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, sgt); + KUNIT_ASSERT_NOT_NULL(test, shmem->pages); + KUNIT_EXPECT_EQ(test, refcount_read(&shmem->pages_use_count), 1); + KUNIT_EXPECT_PTR_EQ(test, sgt, shmem->sgt); + + for_each_sgtable_sg(sgt, sg, si) { + KUNIT_EXPECT_NOT_NULL(test, sg); + len += sg->length; + } + + KUNIT_EXPECT_GE(test, len, TEST_SIZE); +} + +/* + * Test updating the madvise state of a shmem GEM object. The test + * case checks that the function for setting madv updates it only if + * its current value is greater or equal than zero and returns false + * if it has a negative value. + */ +static void drm_gem_shmem_test_madvise(struct kunit *test) +{ + struct drm_device *drm_dev = test->priv; + struct drm_gem_shmem_object *shmem; + int ret; + + shmem = drm_gem_shmem_create(drm_dev, TEST_SIZE); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, shmem); + KUNIT_ASSERT_EQ(test, shmem->madv, 0); + + ret = kunit_add_action_or_reset(test, drm_gem_shmem_free_wrapper, shmem); + KUNIT_ASSERT_EQ(test, ret, 0); + + ret = drm_gem_shmem_madvise_locked(shmem, 1); + KUNIT_EXPECT_TRUE(test, ret); + KUNIT_ASSERT_EQ(test, shmem->madv, 1); + + /* Set madv to a negative value */ + ret = drm_gem_shmem_madvise_locked(shmem, -1); + KUNIT_EXPECT_FALSE(test, ret); + KUNIT_ASSERT_EQ(test, shmem->madv, -1); + + /* Check that madv cannot be set back to a positive value */ + ret = drm_gem_shmem_madvise_locked(shmem, 0); + KUNIT_EXPECT_FALSE(test, ret); + KUNIT_ASSERT_EQ(test, shmem->madv, -1); +} + +/* + * Test purging a shmem GEM object. First, assert that a newly created + * shmem GEM object is not purgeable. Then, set madvise to a positive + * value and call drm_gem_shmem_get_pages_sgt() to pin and dma-map the + * backing pages. Finally, assert that the shmem GEM object is now + * purgeable and purge it. + */ +static void drm_gem_shmem_test_purge(struct kunit *test) +{ + struct drm_device *drm_dev = test->priv; + struct drm_gem_shmem_object *shmem; + struct sg_table *sgt; + int ret; + + shmem = drm_gem_shmem_create(drm_dev, TEST_SIZE); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, shmem); + + ret = kunit_add_action_or_reset(test, drm_gem_shmem_free_wrapper, shmem); + KUNIT_ASSERT_EQ(test, ret, 0); + + ret = drm_gem_shmem_is_purgeable(shmem); + KUNIT_EXPECT_FALSE(test, ret); + + ret = drm_gem_shmem_madvise_locked(shmem, 1); + KUNIT_EXPECT_TRUE(test, ret); + + /* The scatter/gather table will be freed by drm_gem_shmem_free */ + sgt = drm_gem_shmem_get_pages_sgt(shmem); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, sgt); + + ret = drm_gem_shmem_is_purgeable(shmem); + KUNIT_EXPECT_TRUE(test, ret); + + drm_gem_shmem_purge_locked(shmem); + KUNIT_EXPECT_NULL(test, shmem->pages); + KUNIT_EXPECT_NULL(test, shmem->sgt); + KUNIT_EXPECT_EQ(test, shmem->madv, -1); +} + +static int drm_gem_shmem_test_init(struct kunit *test) +{ + struct device *dev; + struct drm_device *drm_dev; + + /* Allocate a parent device */ + dev = drm_kunit_helper_alloc_device(test); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, dev); + + /* + * The DRM core will automatically initialize the GEM core and create + * a DRM Memory Manager object which provides an address space pool + * for GEM objects allocation. + */ + drm_dev = __drm_kunit_helper_alloc_drm_device(test, dev, sizeof(*drm_dev), + 0, DRIVER_GEM); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, drm_dev); + + test->priv = drm_dev; + + return 0; +} + +static struct kunit_case drm_gem_shmem_test_cases[] = { + KUNIT_CASE(drm_gem_shmem_test_obj_create), + KUNIT_CASE(drm_gem_shmem_test_obj_create_private), + KUNIT_CASE(drm_gem_shmem_test_pin_pages), + KUNIT_CASE(drm_gem_shmem_test_vmap), + KUNIT_CASE(drm_gem_shmem_test_get_pages_sgt), + KUNIT_CASE(drm_gem_shmem_test_get_sg_table), + KUNIT_CASE(drm_gem_shmem_test_madvise), + KUNIT_CASE(drm_gem_shmem_test_purge), + {} +}; + +static struct kunit_suite drm_gem_shmem_suite = { + .name = "drm_gem_shmem", + .init = drm_gem_shmem_test_init, + .test_cases = drm_gem_shmem_test_cases +}; + +kunit_test_suite(drm_gem_shmem_suite); + +MODULE_DESCRIPTION("KUnit test suite for GEM objects backed by shmem buffers"); +MODULE_LICENSE("GPL"); diff --git a/drivers/gpu/drm/tests/drm_hdmi_state_helper_test.c b/drivers/gpu/drm/tests/drm_hdmi_state_helper_test.c new file mode 100644 index 000000000000..8bd412735000 --- /dev/null +++ b/drivers/gpu/drm/tests/drm_hdmi_state_helper_test.c @@ -0,0 +1,2334 @@ +// SPDX-License-Identifier: GPL-2.0 + +/* + * Kunit test for drm_hdmi_state_helper functions + */ + +#include <drm/drm_atomic.h> +#include <drm/drm_atomic_state_helper.h> +#include <drm/drm_atomic_uapi.h> +#include <drm/drm_drv.h> +#include <drm/drm_edid.h> +#include <drm/drm_connector.h> +#include <drm/drm_fourcc.h> +#include <drm/drm_kunit_helpers.h> +#include <drm/drm_managed.h> +#include <drm/drm_modeset_helper_vtables.h> +#include <drm/drm_print.h> +#include <drm/drm_probe_helper.h> + +#include <drm/display/drm_hdmi_helper.h> +#include <drm/display/drm_hdmi_state_helper.h> + +#include "../drm_crtc_internal.h" + +#include <kunit/test.h> + +#include "drm_kunit_edid.h" + +struct drm_atomic_helper_connector_hdmi_priv { + struct drm_device drm; + struct drm_plane *plane; + struct drm_crtc *crtc; + struct drm_encoder encoder; + struct drm_connector connector; + + const void *current_edid; + size_t current_edid_len; +}; + +#define connector_to_priv(c) \ + container_of_const(c, struct drm_atomic_helper_connector_hdmi_priv, connector) + +static struct drm_display_mode *find_preferred_mode(struct drm_connector *connector) +{ + struct drm_device *drm = connector->dev; + struct drm_display_mode *mode, *preferred; + + mutex_lock(&drm->mode_config.mutex); + preferred = list_first_entry_or_null(&connector->modes, struct drm_display_mode, head); + list_for_each_entry(mode, &connector->modes, head) + if (mode->type & DRM_MODE_TYPE_PREFERRED) + preferred = mode; + mutex_unlock(&drm->mode_config.mutex); + + return preferred; +} + +static int set_connector_edid(struct kunit *test, struct drm_connector *connector, + const void *edid, size_t edid_len) +{ + struct drm_atomic_helper_connector_hdmi_priv *priv = + connector_to_priv(connector); + struct drm_device *drm = connector->dev; + int ret; + + priv->current_edid = edid; + priv->current_edid_len = edid_len; + + mutex_lock(&drm->mode_config.mutex); + ret = connector->funcs->fill_modes(connector, 4096, 4096); + mutex_unlock(&drm->mode_config.mutex); + + return ret; +} + +static const struct drm_connector_hdmi_funcs dummy_connector_hdmi_funcs = { +}; + +static enum drm_mode_status +reject_connector_tmds_char_rate_valid(const struct drm_connector *connector, + const struct drm_display_mode *mode, + unsigned long long tmds_rate) +{ + return MODE_BAD; +} + +static const struct drm_connector_hdmi_funcs reject_connector_hdmi_funcs = { + .tmds_char_rate_valid = reject_connector_tmds_char_rate_valid, +}; + +static enum drm_mode_status +reject_100mhz_connector_tmds_char_rate_valid(const struct drm_connector *connector, + const struct drm_display_mode *mode, + unsigned long long tmds_rate) +{ + return (tmds_rate > 100ULL * 1000 * 1000) ? MODE_BAD : MODE_OK; +} + +static const struct drm_connector_hdmi_funcs reject_100mhz_connector_hdmi_funcs = { + .tmds_char_rate_valid = reject_100mhz_connector_tmds_char_rate_valid, +}; + +static int dummy_connector_get_modes(struct drm_connector *connector) +{ + struct drm_atomic_helper_connector_hdmi_priv *priv = + connector_to_priv(connector); + const struct drm_edid *edid; + unsigned int num_modes; + + edid = drm_edid_alloc(priv->current_edid, priv->current_edid_len); + if (!edid) + return -EINVAL; + + drm_edid_connector_update(connector, edid); + num_modes = drm_edid_connector_add_modes(connector); + + drm_edid_free(edid); + + return num_modes; +} + +static const struct drm_connector_helper_funcs dummy_connector_helper_funcs = { + .atomic_check = drm_atomic_helper_connector_hdmi_check, + .get_modes = dummy_connector_get_modes, + .mode_valid = drm_hdmi_connector_mode_valid, +}; + +static void dummy_hdmi_connector_reset(struct drm_connector *connector) +{ + drm_atomic_helper_connector_reset(connector); + __drm_atomic_helper_connector_hdmi_reset(connector, connector->state); +} + +static const struct drm_connector_funcs dummy_connector_funcs = { + .atomic_destroy_state = drm_atomic_helper_connector_destroy_state, + .atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state, + .fill_modes = drm_helper_probe_single_connector_modes, + .reset = dummy_hdmi_connector_reset, +}; + +static +struct drm_atomic_helper_connector_hdmi_priv * +__connector_hdmi_init(struct kunit *test, + unsigned int formats, + unsigned int max_bpc, + const struct drm_connector_hdmi_funcs *hdmi_funcs, + const void *edid_data, size_t edid_len) +{ + struct drm_atomic_helper_connector_hdmi_priv *priv; + struct drm_connector *conn; + struct drm_encoder *enc; + struct drm_device *drm; + struct device *dev; + int ret; + + dev = drm_kunit_helper_alloc_device(test); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, dev); + + priv = drm_kunit_helper_alloc_drm_device(test, dev, + struct drm_atomic_helper_connector_hdmi_priv, drm, + DRIVER_MODESET | DRIVER_ATOMIC); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, priv); + test->priv = priv; + + drm = &priv->drm; + priv->plane = drm_kunit_helper_create_primary_plane(test, drm, + NULL, + NULL, + NULL, 0, + NULL); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, priv->plane); + + priv->crtc = drm_kunit_helper_create_crtc(test, drm, + priv->plane, NULL, + NULL, + NULL); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, priv->crtc); + + enc = &priv->encoder; + ret = drmm_encoder_init(drm, enc, NULL, DRM_MODE_ENCODER_TMDS, NULL); + KUNIT_ASSERT_EQ(test, ret, 0); + + enc->possible_crtcs = drm_crtc_mask(priv->crtc); + + conn = &priv->connector; + conn->ycbcr_420_allowed = !!(formats & BIT(HDMI_COLORSPACE_YUV420)); + + ret = drmm_connector_hdmi_init(drm, conn, + "Vendor", "Product", + &dummy_connector_funcs, + hdmi_funcs, + DRM_MODE_CONNECTOR_HDMIA, + NULL, + formats, + max_bpc); + KUNIT_ASSERT_EQ(test, ret, 0); + + drm_connector_helper_add(conn, &dummy_connector_helper_funcs); + drm_connector_attach_encoder(conn, enc); + + drm_mode_config_reset(drm); + + if (edid_data && edid_len) { + ret = set_connector_edid(test, &priv->connector, edid_data, edid_len); + KUNIT_ASSERT_GT(test, ret, 0); + } + + return priv; +} + +#define drm_kunit_helper_connector_hdmi_init_with_edid_funcs(test, formats, max_bpc, funcs, edid) \ + __connector_hdmi_init(test, formats, max_bpc, funcs, edid, ARRAY_SIZE(edid)) + +static +struct drm_atomic_helper_connector_hdmi_priv * +drm_kunit_helper_connector_hdmi_init(struct kunit *test, + unsigned int formats, + unsigned int max_bpc) +{ + return drm_kunit_helper_connector_hdmi_init_with_edid_funcs(test, + formats, + max_bpc, + &dummy_connector_hdmi_funcs, + test_edid_hdmi_1080p_rgb_max_200mhz); +} + +/* + * Test that if we change the RGB quantization property to a different + * value, we trigger a mode change on the connector's CRTC, which will + * in turn disable/enable the connector. + */ +static void drm_test_check_broadcast_rgb_crtc_mode_changed(struct kunit *test) +{ + struct drm_atomic_helper_connector_hdmi_priv *priv; + struct drm_modeset_acquire_ctx ctx; + struct drm_connector_state *old_conn_state; + struct drm_connector_state *new_conn_state; + struct drm_crtc_state *crtc_state; + struct drm_atomic_state *state; + struct drm_display_mode *preferred; + struct drm_connector *conn; + struct drm_device *drm; + struct drm_crtc *crtc; + int ret; + + priv = drm_kunit_helper_connector_hdmi_init(test, + BIT(HDMI_COLORSPACE_RGB), + 8); + KUNIT_ASSERT_NOT_NULL(test, priv); + + drm = &priv->drm; + crtc = priv->crtc; + conn = &priv->connector; + + preferred = find_preferred_mode(conn); + KUNIT_ASSERT_NOT_NULL(test, preferred); + + drm_modeset_acquire_init(&ctx, 0); + + ret = drm_kunit_helper_enable_crtc_connector(test, drm, + crtc, conn, + preferred, + &ctx); + KUNIT_ASSERT_EQ(test, ret, 0); + + state = drm_kunit_helper_atomic_state_alloc(test, drm, &ctx); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, state); + + new_conn_state = drm_atomic_get_connector_state(state, conn); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, new_conn_state); + + old_conn_state = drm_atomic_get_old_connector_state(state, conn); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, old_conn_state); + + new_conn_state->hdmi.broadcast_rgb = DRM_HDMI_BROADCAST_RGB_FULL; + + KUNIT_ASSERT_NE(test, + old_conn_state->hdmi.broadcast_rgb, + new_conn_state->hdmi.broadcast_rgb); + + ret = drm_atomic_check_only(state); + KUNIT_ASSERT_EQ(test, ret, 0); + + new_conn_state = drm_atomic_get_new_connector_state(state, conn); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, new_conn_state); + KUNIT_EXPECT_EQ(test, new_conn_state->hdmi.broadcast_rgb, DRM_HDMI_BROADCAST_RGB_FULL); + + crtc_state = drm_atomic_get_new_crtc_state(state, crtc); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, crtc_state); + KUNIT_EXPECT_TRUE(test, crtc_state->mode_changed); + + drm_modeset_drop_locks(&ctx); + drm_modeset_acquire_fini(&ctx); +} + +/* + * Test that if we set the RGB quantization property to the same value, + * we don't trigger a mode change on the connector's CRTC and leave the + * connector unaffected. + */ +static void drm_test_check_broadcast_rgb_crtc_mode_not_changed(struct kunit *test) +{ + struct drm_atomic_helper_connector_hdmi_priv *priv; + struct drm_modeset_acquire_ctx ctx; + struct drm_connector_state *old_conn_state; + struct drm_connector_state *new_conn_state; + struct drm_crtc_state *crtc_state; + struct drm_atomic_state *state; + struct drm_display_mode *preferred; + struct drm_connector *conn; + struct drm_device *drm; + struct drm_crtc *crtc; + int ret; + + priv = drm_kunit_helper_connector_hdmi_init(test, + BIT(HDMI_COLORSPACE_RGB), + 8); + KUNIT_ASSERT_NOT_NULL(test, priv); + + drm = &priv->drm; + crtc = priv->crtc; + conn = &priv->connector; + + preferred = find_preferred_mode(conn); + KUNIT_ASSERT_NOT_NULL(test, preferred); + + drm_modeset_acquire_init(&ctx, 0); + + ret = drm_kunit_helper_enable_crtc_connector(test, drm, + crtc, conn, + preferred, + &ctx); + KUNIT_ASSERT_EQ(test, ret, 0); + + state = drm_kunit_helper_atomic_state_alloc(test, drm, &ctx); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, state); + + new_conn_state = drm_atomic_get_connector_state(state, conn); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, new_conn_state); + + old_conn_state = drm_atomic_get_old_connector_state(state, conn); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, old_conn_state); + + new_conn_state->hdmi.broadcast_rgb = old_conn_state->hdmi.broadcast_rgb; + + ret = drm_atomic_check_only(state); + KUNIT_ASSERT_EQ(test, ret, 0); + + old_conn_state = drm_atomic_get_old_connector_state(state, conn); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, old_conn_state); + + new_conn_state = drm_atomic_get_new_connector_state(state, conn); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, new_conn_state); + + KUNIT_EXPECT_EQ(test, + old_conn_state->hdmi.broadcast_rgb, + new_conn_state->hdmi.broadcast_rgb); + + crtc_state = drm_atomic_get_new_crtc_state(state, crtc); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, crtc_state); + KUNIT_EXPECT_FALSE(test, crtc_state->mode_changed); + + drm_modeset_drop_locks(&ctx); + drm_modeset_acquire_fini(&ctx); +} + +/* + * Test that for an HDMI connector, with an HDMI monitor, if the + * Broadcast RGB property is set to auto with a mode that isn't the + * VIC-1 mode, we will get a limited RGB Quantization Range. + */ +static void drm_test_check_broadcast_rgb_auto_cea_mode(struct kunit *test) +{ + struct drm_atomic_helper_connector_hdmi_priv *priv; + struct drm_modeset_acquire_ctx ctx; + struct drm_connector_state *conn_state; + struct drm_atomic_state *state; + struct drm_display_mode *preferred; + struct drm_connector *conn; + struct drm_device *drm; + struct drm_crtc *crtc; + int ret; + + priv = drm_kunit_helper_connector_hdmi_init(test, + BIT(HDMI_COLORSPACE_RGB), + 8); + KUNIT_ASSERT_NOT_NULL(test, priv); + + drm = &priv->drm; + crtc = priv->crtc; + conn = &priv->connector; + KUNIT_ASSERT_TRUE(test, conn->display_info.is_hdmi); + + preferred = find_preferred_mode(conn); + KUNIT_ASSERT_NOT_NULL(test, preferred); + KUNIT_ASSERT_NE(test, drm_match_cea_mode(preferred), 1); + + drm_modeset_acquire_init(&ctx, 0); + + ret = drm_kunit_helper_enable_crtc_connector(test, drm, + crtc, conn, + preferred, + &ctx); + KUNIT_ASSERT_EQ(test, ret, 0); + + state = drm_kunit_helper_atomic_state_alloc(test, drm, &ctx); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, state); + + conn_state = drm_atomic_get_connector_state(state, conn); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, conn_state); + + KUNIT_ASSERT_EQ(test, + conn_state->hdmi.broadcast_rgb, + DRM_HDMI_BROADCAST_RGB_AUTO); + + ret = drm_atomic_check_only(state); + KUNIT_ASSERT_EQ(test, ret, 0); + + conn_state = drm_atomic_get_new_connector_state(state, conn); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, conn_state); + + KUNIT_EXPECT_TRUE(test, conn_state->hdmi.is_limited_range); + + drm_modeset_drop_locks(&ctx); + drm_modeset_acquire_fini(&ctx); +} + +/* + * Test that for an HDMI connector, with an HDMI monitor, if the + * Broadcast RGB property is set to auto with a VIC-1 mode, we will get + * a full RGB Quantization Range. + */ +static void drm_test_check_broadcast_rgb_auto_cea_mode_vic_1(struct kunit *test) +{ + struct drm_atomic_helper_connector_hdmi_priv *priv; + struct drm_modeset_acquire_ctx ctx; + struct drm_connector_state *conn_state; + struct drm_atomic_state *state; + struct drm_display_mode *mode; + struct drm_connector *conn; + struct drm_device *drm; + struct drm_crtc *crtc; + int ret; + + priv = drm_kunit_helper_connector_hdmi_init(test, + BIT(HDMI_COLORSPACE_RGB), + 8); + KUNIT_ASSERT_NOT_NULL(test, priv); + + drm = &priv->drm; + conn = &priv->connector; + KUNIT_ASSERT_TRUE(test, conn->display_info.is_hdmi); + + drm_modeset_acquire_init(&ctx, 0); + + mode = drm_kunit_display_mode_from_cea_vic(test, drm, 1); + KUNIT_ASSERT_NOT_NULL(test, mode); + + crtc = priv->crtc; + ret = drm_kunit_helper_enable_crtc_connector(test, drm, + crtc, conn, + mode, + &ctx); + KUNIT_ASSERT_EQ(test, ret, 0); + + state = drm_kunit_helper_atomic_state_alloc(test, drm, &ctx); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, state); + + conn_state = drm_atomic_get_connector_state(state, conn); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, conn_state); + + KUNIT_ASSERT_EQ(test, + conn_state->hdmi.broadcast_rgb, + DRM_HDMI_BROADCAST_RGB_AUTO); + + ret = drm_atomic_check_only(state); + KUNIT_ASSERT_EQ(test, ret, 0); + + conn_state = drm_atomic_get_new_connector_state(state, conn); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, conn_state); + + KUNIT_EXPECT_FALSE(test, conn_state->hdmi.is_limited_range); + + drm_modeset_drop_locks(&ctx); + drm_modeset_acquire_fini(&ctx); +} + +/* + * Test that for an HDMI connector, with an HDMI monitor, if the + * Broadcast RGB property is set to full with a mode that isn't the + * VIC-1 mode, we will get a full RGB Quantization Range. + */ +static void drm_test_check_broadcast_rgb_full_cea_mode(struct kunit *test) +{ + struct drm_atomic_helper_connector_hdmi_priv *priv; + struct drm_modeset_acquire_ctx ctx; + struct drm_connector_state *conn_state; + struct drm_atomic_state *state; + struct drm_display_mode *preferred; + struct drm_connector *conn; + struct drm_device *drm; + struct drm_crtc *crtc; + int ret; + + priv = drm_kunit_helper_connector_hdmi_init(test, + BIT(HDMI_COLORSPACE_RGB), + 8); + KUNIT_ASSERT_NOT_NULL(test, priv); + + drm = &priv->drm; + crtc = priv->crtc; + conn = &priv->connector; + KUNIT_ASSERT_TRUE(test, conn->display_info.is_hdmi); + + preferred = find_preferred_mode(conn); + KUNIT_ASSERT_NOT_NULL(test, preferred); + KUNIT_ASSERT_NE(test, drm_match_cea_mode(preferred), 1); + + drm_modeset_acquire_init(&ctx, 0); + + ret = drm_kunit_helper_enable_crtc_connector(test, drm, + crtc, conn, + preferred, + &ctx); + KUNIT_ASSERT_EQ(test, ret, 0); + + state = drm_kunit_helper_atomic_state_alloc(test, drm, &ctx); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, state); + + conn_state = drm_atomic_get_connector_state(state, conn); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, conn_state); + + conn_state->hdmi.broadcast_rgb = DRM_HDMI_BROADCAST_RGB_FULL; + + ret = drm_atomic_check_only(state); + KUNIT_ASSERT_EQ(test, ret, 0); + + conn_state = drm_atomic_get_new_connector_state(state, conn); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, conn_state); + + KUNIT_ASSERT_EQ(test, + conn_state->hdmi.broadcast_rgb, + DRM_HDMI_BROADCAST_RGB_FULL); + + KUNIT_EXPECT_FALSE(test, conn_state->hdmi.is_limited_range); + + drm_modeset_drop_locks(&ctx); + drm_modeset_acquire_fini(&ctx); +} + +/* + * Test that for an HDMI connector, with an HDMI monitor, if the + * Broadcast RGB property is set to full with a VIC-1 mode, we will get + * a full RGB Quantization Range. + */ +static void drm_test_check_broadcast_rgb_full_cea_mode_vic_1(struct kunit *test) +{ + struct drm_atomic_helper_connector_hdmi_priv *priv; + struct drm_modeset_acquire_ctx ctx; + struct drm_connector_state *conn_state; + struct drm_atomic_state *state; + struct drm_display_mode *mode; + struct drm_connector *conn; + struct drm_device *drm; + struct drm_crtc *crtc; + int ret; + + priv = drm_kunit_helper_connector_hdmi_init(test, + BIT(HDMI_COLORSPACE_RGB), + 8); + KUNIT_ASSERT_NOT_NULL(test, priv); + + drm = &priv->drm; + conn = &priv->connector; + KUNIT_ASSERT_TRUE(test, conn->display_info.is_hdmi); + + drm_modeset_acquire_init(&ctx, 0); + + mode = drm_kunit_display_mode_from_cea_vic(test, drm, 1); + KUNIT_ASSERT_NOT_NULL(test, mode); + + crtc = priv->crtc; + ret = drm_kunit_helper_enable_crtc_connector(test, drm, + crtc, conn, + mode, + &ctx); + KUNIT_ASSERT_EQ(test, ret, 0); + + state = drm_kunit_helper_atomic_state_alloc(test, drm, &ctx); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, state); + + conn_state = drm_atomic_get_connector_state(state, conn); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, conn_state); + + conn_state->hdmi.broadcast_rgb = DRM_HDMI_BROADCAST_RGB_FULL; + + ret = drm_atomic_check_only(state); + KUNIT_ASSERT_EQ(test, ret, 0); + + conn_state = drm_atomic_get_new_connector_state(state, conn); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, conn_state); + + KUNIT_ASSERT_EQ(test, + conn_state->hdmi.broadcast_rgb, + DRM_HDMI_BROADCAST_RGB_FULL); + + KUNIT_EXPECT_FALSE(test, conn_state->hdmi.is_limited_range); + + drm_modeset_drop_locks(&ctx); + drm_modeset_acquire_fini(&ctx); +} + +/* + * Test that for an HDMI connector, with an HDMI monitor, if the + * Broadcast RGB property is set to limited with a mode that isn't the + * VIC-1 mode, we will get a limited RGB Quantization Range. + */ +static void drm_test_check_broadcast_rgb_limited_cea_mode(struct kunit *test) +{ + struct drm_atomic_helper_connector_hdmi_priv *priv; + struct drm_modeset_acquire_ctx ctx; + struct drm_connector_state *conn_state; + struct drm_atomic_state *state; + struct drm_display_mode *preferred; + struct drm_connector *conn; + struct drm_device *drm; + struct drm_crtc *crtc; + int ret; + + priv = drm_kunit_helper_connector_hdmi_init(test, + BIT(HDMI_COLORSPACE_RGB), + 8); + KUNIT_ASSERT_NOT_NULL(test, priv); + + drm = &priv->drm; + crtc = priv->crtc; + conn = &priv->connector; + KUNIT_ASSERT_TRUE(test, conn->display_info.is_hdmi); + + preferred = find_preferred_mode(conn); + KUNIT_ASSERT_NOT_NULL(test, preferred); + KUNIT_ASSERT_NE(test, drm_match_cea_mode(preferred), 1); + + drm_modeset_acquire_init(&ctx, 0); + + ret = drm_kunit_helper_enable_crtc_connector(test, drm, + crtc, conn, + preferred, + &ctx); + KUNIT_ASSERT_EQ(test, ret, 0); + + state = drm_kunit_helper_atomic_state_alloc(test, drm, &ctx); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, state); + + conn_state = drm_atomic_get_connector_state(state, conn); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, conn_state); + + conn_state->hdmi.broadcast_rgb = DRM_HDMI_BROADCAST_RGB_LIMITED; + + ret = drm_atomic_check_only(state); + KUNIT_ASSERT_EQ(test, ret, 0); + + conn_state = drm_atomic_get_new_connector_state(state, conn); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, conn_state); + + KUNIT_ASSERT_EQ(test, + conn_state->hdmi.broadcast_rgb, + DRM_HDMI_BROADCAST_RGB_LIMITED); + + KUNIT_EXPECT_TRUE(test, conn_state->hdmi.is_limited_range); + + drm_modeset_drop_locks(&ctx); + drm_modeset_acquire_fini(&ctx); +} + +/* + * Test that for an HDMI connector, with an HDMI monitor, if the + * Broadcast RGB property is set to limited with a VIC-1 mode, we will + * get a limited RGB Quantization Range. + */ +static void drm_test_check_broadcast_rgb_limited_cea_mode_vic_1(struct kunit *test) +{ + struct drm_atomic_helper_connector_hdmi_priv *priv; + struct drm_modeset_acquire_ctx ctx; + struct drm_connector_state *conn_state; + struct drm_atomic_state *state; + struct drm_display_mode *mode; + struct drm_connector *conn; + struct drm_device *drm; + struct drm_crtc *crtc; + int ret; + + priv = drm_kunit_helper_connector_hdmi_init(test, + BIT(HDMI_COLORSPACE_RGB), + 8); + KUNIT_ASSERT_NOT_NULL(test, priv); + + drm = &priv->drm; + conn = &priv->connector; + KUNIT_ASSERT_TRUE(test, conn->display_info.is_hdmi); + + drm_modeset_acquire_init(&ctx, 0); + + mode = drm_kunit_display_mode_from_cea_vic(test, drm, 1); + KUNIT_ASSERT_NOT_NULL(test, mode); + + crtc = priv->crtc; + ret = drm_kunit_helper_enable_crtc_connector(test, drm, + crtc, conn, + mode, + &ctx); + KUNIT_ASSERT_EQ(test, ret, 0); + + state = drm_kunit_helper_atomic_state_alloc(test, drm, &ctx); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, state); + + conn_state = drm_atomic_get_connector_state(state, conn); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, conn_state); + + conn_state->hdmi.broadcast_rgb = DRM_HDMI_BROADCAST_RGB_LIMITED; + + ret = drm_atomic_check_only(state); + KUNIT_ASSERT_EQ(test, ret, 0); + + conn_state = drm_atomic_get_new_connector_state(state, conn); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, conn_state); + + KUNIT_ASSERT_EQ(test, + conn_state->hdmi.broadcast_rgb, + DRM_HDMI_BROADCAST_RGB_LIMITED); + + KUNIT_EXPECT_TRUE(test, conn_state->hdmi.is_limited_range); + + drm_modeset_drop_locks(&ctx); + drm_modeset_acquire_fini(&ctx); +} + +/* + * Test that for an HDMI connector, with an HDMI monitor, we will + * get a limited RGB Quantization Range with a YUV420 mode, no + * matter what the value of the Broadcast RGB property is set to. + */ +static void drm_test_check_broadcast_rgb_cea_mode_yuv420(struct kunit *test) +{ + struct drm_atomic_helper_connector_hdmi_priv *priv; + enum drm_hdmi_broadcast_rgb broadcast_rgb; + struct drm_modeset_acquire_ctx ctx; + struct drm_connector_state *conn_state; + struct drm_atomic_state *state; + struct drm_display_mode *mode; + struct drm_connector *conn; + struct drm_device *drm; + struct drm_crtc *crtc; + int ret; + + broadcast_rgb = *(enum drm_hdmi_broadcast_rgb *)test->param_value; + + priv = drm_kunit_helper_connector_hdmi_init_with_edid_funcs(test, + BIT(HDMI_COLORSPACE_RGB) | + BIT(HDMI_COLORSPACE_YUV420), + 8, + &dummy_connector_hdmi_funcs, + test_edid_hdmi_1080p_rgb_yuv_4k_yuv420_dc_max_200mhz); + KUNIT_ASSERT_NOT_NULL(test, priv); + + drm = &priv->drm; + crtc = priv->crtc; + conn = &priv->connector; + KUNIT_ASSERT_TRUE(test, conn->display_info.is_hdmi); + + mode = drm_kunit_display_mode_from_cea_vic(test, drm, 95); + KUNIT_ASSERT_NOT_NULL(test, mode); + + drm_modeset_acquire_init(&ctx, 0); + +retry_conn_enable: + ret = drm_kunit_helper_enable_crtc_connector(test, drm, crtc, conn, + mode, &ctx); + if (ret == -EDEADLK) { + ret = drm_modeset_backoff(&ctx); + if (!ret) + goto retry_conn_enable; + } + KUNIT_ASSERT_EQ(test, ret, 0); + + state = drm_kunit_helper_atomic_state_alloc(test, drm, &ctx); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, state); + +retry_conn_state: + conn_state = drm_atomic_get_connector_state(state, conn); + if (PTR_ERR(conn_state) == -EDEADLK) { + drm_atomic_state_clear(state); + ret = drm_modeset_backoff(&ctx); + if (!ret) + goto retry_conn_state; + } + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, conn_state); + + conn_state->hdmi.broadcast_rgb = broadcast_rgb; + + ret = drm_atomic_check_only(state); + if (ret == -EDEADLK) { + drm_atomic_state_clear(state); + ret = drm_modeset_backoff(&ctx); + if (!ret) + goto retry_conn_state; + } + KUNIT_ASSERT_EQ(test, ret, 0); + + conn_state = drm_atomic_get_new_connector_state(state, conn); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, conn_state); + + KUNIT_ASSERT_EQ(test, conn_state->hdmi.broadcast_rgb, broadcast_rgb); + KUNIT_ASSERT_EQ(test, conn_state->hdmi.output_format, HDMI_COLORSPACE_YUV420); + + KUNIT_EXPECT_TRUE(test, conn_state->hdmi.is_limited_range); + + drm_modeset_drop_locks(&ctx); + drm_modeset_acquire_fini(&ctx); +} + +static const enum drm_hdmi_broadcast_rgb check_broadcast_rgb_cea_mode_yuv420_tests[] = { + DRM_HDMI_BROADCAST_RGB_AUTO, + DRM_HDMI_BROADCAST_RGB_FULL, + DRM_HDMI_BROADCAST_RGB_LIMITED, +}; + +static void +check_broadcast_rgb_cea_mode_yuv420_desc(const enum drm_hdmi_broadcast_rgb *broadcast_rgb, + char *desc) +{ + sprintf(desc, "%s", drm_hdmi_connector_get_broadcast_rgb_name(*broadcast_rgb)); +} + +KUNIT_ARRAY_PARAM(check_broadcast_rgb_cea_mode_yuv420, + check_broadcast_rgb_cea_mode_yuv420_tests, + check_broadcast_rgb_cea_mode_yuv420_desc); + +/* + * Test that if we change the maximum bpc property to a different value, + * we trigger a mode change on the connector's CRTC, which will in turn + * disable/enable the connector. + */ +static void drm_test_check_output_bpc_crtc_mode_changed(struct kunit *test) +{ + struct drm_atomic_helper_connector_hdmi_priv *priv; + struct drm_modeset_acquire_ctx ctx; + struct drm_connector_state *old_conn_state; + struct drm_connector_state *new_conn_state; + struct drm_crtc_state *crtc_state; + struct drm_atomic_state *state; + struct drm_display_mode *preferred; + struct drm_connector *conn; + struct drm_device *drm; + struct drm_crtc *crtc; + int ret; + + priv = drm_kunit_helper_connector_hdmi_init_with_edid_funcs(test, + BIT(HDMI_COLORSPACE_RGB), + 10, + &dummy_connector_hdmi_funcs, + test_edid_hdmi_1080p_rgb_yuv_dc_max_200mhz); + KUNIT_ASSERT_NOT_NULL(test, priv); + + drm = &priv->drm; + crtc = priv->crtc; + conn = &priv->connector; + preferred = find_preferred_mode(conn); + KUNIT_ASSERT_NOT_NULL(test, preferred); + + drm_modeset_acquire_init(&ctx, 0); + + ret = drm_kunit_helper_enable_crtc_connector(test, drm, + crtc, conn, + preferred, + &ctx); + KUNIT_ASSERT_EQ(test, ret, 0); + + state = drm_kunit_helper_atomic_state_alloc(test, drm, &ctx); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, state); + + new_conn_state = drm_atomic_get_connector_state(state, conn); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, new_conn_state); + + old_conn_state = drm_atomic_get_old_connector_state(state, conn); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, old_conn_state); + + new_conn_state->max_requested_bpc = 8; + + KUNIT_ASSERT_NE(test, + old_conn_state->max_requested_bpc, + new_conn_state->max_requested_bpc); + + ret = drm_atomic_check_only(state); + KUNIT_ASSERT_EQ(test, ret, 0); + + old_conn_state = drm_atomic_get_old_connector_state(state, conn); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, old_conn_state); + + new_conn_state = drm_atomic_get_new_connector_state(state, conn); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, new_conn_state); + + KUNIT_ASSERT_NE(test, + old_conn_state->hdmi.output_bpc, + new_conn_state->hdmi.output_bpc); + + crtc_state = drm_atomic_get_new_crtc_state(state, crtc); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, crtc_state); + KUNIT_EXPECT_TRUE(test, crtc_state->mode_changed); + + drm_modeset_drop_locks(&ctx); + drm_modeset_acquire_fini(&ctx); +} + +/* + * Test that if we set the output bpc property to the same value, we + * don't trigger a mode change on the connector's CRTC and leave the + * connector unaffected. + */ +static void drm_test_check_output_bpc_crtc_mode_not_changed(struct kunit *test) +{ + struct drm_atomic_helper_connector_hdmi_priv *priv; + struct drm_modeset_acquire_ctx ctx; + struct drm_connector_state *old_conn_state; + struct drm_connector_state *new_conn_state; + struct drm_crtc_state *crtc_state; + struct drm_atomic_state *state; + struct drm_display_mode *preferred; + struct drm_connector *conn; + struct drm_device *drm; + struct drm_crtc *crtc; + int ret; + + priv = drm_kunit_helper_connector_hdmi_init_with_edid_funcs(test, + BIT(HDMI_COLORSPACE_RGB), + 10, + &dummy_connector_hdmi_funcs, + test_edid_hdmi_1080p_rgb_yuv_dc_max_200mhz); + KUNIT_ASSERT_NOT_NULL(test, priv); + + drm = &priv->drm; + crtc = priv->crtc; + conn = &priv->connector; + preferred = find_preferred_mode(conn); + KUNIT_ASSERT_NOT_NULL(test, preferred); + + drm_modeset_acquire_init(&ctx, 0); + + ret = drm_kunit_helper_enable_crtc_connector(test, drm, + crtc, conn, + preferred, + &ctx); + KUNIT_ASSERT_EQ(test, ret, 0); + + state = drm_kunit_helper_atomic_state_alloc(test, drm, &ctx); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, state); + + new_conn_state = drm_atomic_get_connector_state(state, conn); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, new_conn_state); + + old_conn_state = drm_atomic_get_old_connector_state(state, conn); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, old_conn_state); + + KUNIT_ASSERT_EQ(test, + new_conn_state->hdmi.output_bpc, + old_conn_state->hdmi.output_bpc); + + ret = drm_atomic_check_only(state); + KUNIT_ASSERT_EQ(test, ret, 0); + + old_conn_state = drm_atomic_get_old_connector_state(state, conn); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, old_conn_state); + + new_conn_state = drm_atomic_get_new_connector_state(state, conn); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, new_conn_state); + + KUNIT_EXPECT_EQ(test, + old_conn_state->hdmi.output_bpc, + new_conn_state->hdmi.output_bpc); + + crtc_state = drm_atomic_get_new_crtc_state(state, crtc); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, crtc_state); + KUNIT_EXPECT_FALSE(test, crtc_state->mode_changed); + + drm_modeset_drop_locks(&ctx); + drm_modeset_acquire_fini(&ctx); +} + +/* + * Test that if we have an HDMI connector but a !HDMI display, we always + * output RGB with 8 bpc. + */ +static void drm_test_check_output_bpc_dvi(struct kunit *test) +{ + struct drm_atomic_helper_connector_hdmi_priv *priv; + struct drm_modeset_acquire_ctx ctx; + struct drm_connector_state *conn_state; + struct drm_display_info *info; + struct drm_display_mode *preferred; + struct drm_connector *conn; + struct drm_device *drm; + struct drm_crtc *crtc; + int ret; + + priv = drm_kunit_helper_connector_hdmi_init_with_edid_funcs(test, + BIT(HDMI_COLORSPACE_RGB) | + BIT(HDMI_COLORSPACE_YUV422) | + BIT(HDMI_COLORSPACE_YUV444), + 12, + &dummy_connector_hdmi_funcs, + test_edid_dvi_1080p); + KUNIT_ASSERT_NOT_NULL(test, priv); + + drm = &priv->drm; + crtc = priv->crtc; + conn = &priv->connector; + info = &conn->display_info; + KUNIT_ASSERT_FALSE(test, info->is_hdmi); + + preferred = find_preferred_mode(conn); + KUNIT_ASSERT_NOT_NULL(test, preferred); + + drm_modeset_acquire_init(&ctx, 0); + + ret = drm_kunit_helper_enable_crtc_connector(test, drm, + crtc, conn, + preferred, + &ctx); + KUNIT_ASSERT_EQ(test, ret, 0); + + conn_state = conn->state; + KUNIT_ASSERT_NOT_NULL(test, conn_state); + + KUNIT_EXPECT_EQ(test, conn_state->hdmi.output_bpc, 8); + KUNIT_EXPECT_EQ(test, conn_state->hdmi.output_format, HDMI_COLORSPACE_RGB); + + drm_modeset_drop_locks(&ctx); + drm_modeset_acquire_fini(&ctx); +} + +/* + * Test that when doing a commit which would use RGB 8bpc, the TMDS + * clock rate stored in the connector state is equal to the mode clock + */ +static void drm_test_check_tmds_char_rate_rgb_8bpc(struct kunit *test) +{ + struct drm_atomic_helper_connector_hdmi_priv *priv; + struct drm_modeset_acquire_ctx ctx; + struct drm_connector_state *conn_state; + struct drm_display_mode *preferred; + struct drm_connector *conn; + struct drm_device *drm; + struct drm_crtc *crtc; + int ret; + + priv = drm_kunit_helper_connector_hdmi_init_with_edid_funcs(test, + BIT(HDMI_COLORSPACE_RGB), + 8, + &dummy_connector_hdmi_funcs, + test_edid_hdmi_1080p_rgb_max_200mhz); + KUNIT_ASSERT_NOT_NULL(test, priv); + + drm = &priv->drm; + crtc = priv->crtc; + conn = &priv->connector; + preferred = find_preferred_mode(conn); + KUNIT_ASSERT_NOT_NULL(test, preferred); + KUNIT_ASSERT_FALSE(test, preferred->flags & DRM_MODE_FLAG_DBLCLK); + + drm_modeset_acquire_init(&ctx, 0); + + ret = drm_kunit_helper_enable_crtc_connector(test, drm, + crtc, conn, + preferred, + &ctx); + KUNIT_ASSERT_EQ(test, ret, 0); + + conn_state = conn->state; + KUNIT_ASSERT_NOT_NULL(test, conn_state); + + KUNIT_ASSERT_EQ(test, conn_state->hdmi.output_bpc, 8); + KUNIT_ASSERT_EQ(test, conn_state->hdmi.output_format, HDMI_COLORSPACE_RGB); + KUNIT_EXPECT_EQ(test, conn_state->hdmi.tmds_char_rate, preferred->clock * 1000); + + drm_modeset_drop_locks(&ctx); + drm_modeset_acquire_fini(&ctx); +} + +/* + * Test that when doing a commit which would use RGB 10bpc, the TMDS + * clock rate stored in the connector state is equal to 1.25 times the + * mode pixel clock + */ +static void drm_test_check_tmds_char_rate_rgb_10bpc(struct kunit *test) +{ + struct drm_atomic_helper_connector_hdmi_priv *priv; + struct drm_modeset_acquire_ctx ctx; + struct drm_connector_state *conn_state; + struct drm_display_mode *preferred; + struct drm_connector *conn; + struct drm_device *drm; + struct drm_crtc *crtc; + int ret; + + priv = drm_kunit_helper_connector_hdmi_init_with_edid_funcs(test, + BIT(HDMI_COLORSPACE_RGB), + 10, + &dummy_connector_hdmi_funcs, + test_edid_hdmi_1080p_rgb_yuv_dc_max_340mhz); + KUNIT_ASSERT_NOT_NULL(test, priv); + + drm = &priv->drm; + crtc = priv->crtc; + conn = &priv->connector; + preferred = find_preferred_mode(conn); + KUNIT_ASSERT_NOT_NULL(test, preferred); + KUNIT_ASSERT_FALSE(test, preferred->flags & DRM_MODE_FLAG_DBLCLK); + + drm_modeset_acquire_init(&ctx, 0); + + ret = drm_kunit_helper_enable_crtc_connector(test, drm, + crtc, conn, + preferred, + &ctx); + KUNIT_ASSERT_EQ(test, ret, 0); + + conn_state = conn->state; + KUNIT_ASSERT_NOT_NULL(test, conn_state); + + KUNIT_ASSERT_EQ(test, conn_state->hdmi.output_bpc, 10); + KUNIT_ASSERT_EQ(test, conn_state->hdmi.output_format, HDMI_COLORSPACE_RGB); + KUNIT_EXPECT_EQ(test, conn_state->hdmi.tmds_char_rate, preferred->clock * 1250); + + drm_modeset_drop_locks(&ctx); + drm_modeset_acquire_fini(&ctx); +} + +/* + * Test that when doing a commit which would use RGB 12bpc, the TMDS + * clock rate stored in the connector state is equal to 1.5 times the + * mode pixel clock + */ +static void drm_test_check_tmds_char_rate_rgb_12bpc(struct kunit *test) +{ + struct drm_atomic_helper_connector_hdmi_priv *priv; + struct drm_modeset_acquire_ctx ctx; + struct drm_connector_state *conn_state; + struct drm_display_mode *preferred; + struct drm_connector *conn; + struct drm_device *drm; + struct drm_crtc *crtc; + int ret; + + priv = drm_kunit_helper_connector_hdmi_init_with_edid_funcs(test, + BIT(HDMI_COLORSPACE_RGB), + 12, + &dummy_connector_hdmi_funcs, + test_edid_hdmi_1080p_rgb_yuv_dc_max_340mhz); + KUNIT_ASSERT_NOT_NULL(test, priv); + + drm = &priv->drm; + crtc = priv->crtc; + conn = &priv->connector; + preferred = find_preferred_mode(conn); + KUNIT_ASSERT_NOT_NULL(test, preferred); + KUNIT_ASSERT_FALSE(test, preferred->flags & DRM_MODE_FLAG_DBLCLK); + + drm_modeset_acquire_init(&ctx, 0); + + ret = drm_kunit_helper_enable_crtc_connector(test, drm, + crtc, conn, + preferred, + &ctx); + KUNIT_ASSERT_EQ(test, ret, 0); + + conn_state = conn->state; + KUNIT_ASSERT_NOT_NULL(test, conn_state); + + KUNIT_ASSERT_EQ(test, conn_state->hdmi.output_bpc, 12); + KUNIT_ASSERT_EQ(test, conn_state->hdmi.output_format, HDMI_COLORSPACE_RGB); + KUNIT_EXPECT_EQ(test, conn_state->hdmi.tmds_char_rate, preferred->clock * 1500); + + drm_modeset_drop_locks(&ctx); + drm_modeset_acquire_fini(&ctx); +} + +/* + * Test that if we filter a rate through our hook, it's indeed rejected + * by the whole atomic_check logic. + * + * We do so by first doing a commit on the pipeline to make sure that it + * works, change the HDMI helpers pointer, and then try the same commit + * again to see if it fails as it should. + */ +static void drm_test_check_hdmi_funcs_reject_rate(struct kunit *test) +{ + struct drm_atomic_helper_connector_hdmi_priv *priv; + struct drm_modeset_acquire_ctx ctx; + struct drm_atomic_state *state; + struct drm_display_mode *preferred; + struct drm_crtc_state *crtc_state; + struct drm_connector *conn; + struct drm_device *drm; + struct drm_crtc *crtc; + int ret; + + priv = drm_kunit_helper_connector_hdmi_init(test, + BIT(HDMI_COLORSPACE_RGB), + 8); + KUNIT_ASSERT_NOT_NULL(test, priv); + + drm = &priv->drm; + crtc = priv->crtc; + conn = &priv->connector; + + preferred = find_preferred_mode(conn); + KUNIT_ASSERT_NOT_NULL(test, preferred); + + drm_modeset_acquire_init(&ctx, 0); + + ret = drm_kunit_helper_enable_crtc_connector(test, drm, + crtc, conn, + preferred, + &ctx); + KUNIT_ASSERT_EQ(test, ret, 0); + + /* You shouldn't be doing that at home. */ + conn->hdmi.funcs = &reject_connector_hdmi_funcs; + + state = drm_kunit_helper_atomic_state_alloc(test, drm, &ctx); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, state); + + crtc_state = drm_atomic_get_crtc_state(state, crtc); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, crtc_state); + + crtc_state->connectors_changed = true; + + ret = drm_atomic_check_only(state); + KUNIT_EXPECT_LT(test, ret, 0); + + drm_modeset_drop_locks(&ctx); + drm_modeset_acquire_fini(&ctx); +} + +/* + * Test that if: + * - We have an HDMI connector supporting RGB only + * - The chosen mode has a TMDS character rate higher than the display + * supports in RGB/12bpc + * - The chosen mode has a TMDS character rate lower than the display + * supports in RGB/10bpc. + * + * Then we will pick the latter, and the computed TMDS character rate + * will be equal to 1.25 times the mode pixel clock. + */ +static void drm_test_check_max_tmds_rate_bpc_fallback_rgb(struct kunit *test) +{ + struct drm_atomic_helper_connector_hdmi_priv *priv; + struct drm_modeset_acquire_ctx ctx; + struct drm_connector_state *conn_state; + struct drm_display_info *info; + struct drm_display_mode *preferred; + unsigned long long rate; + struct drm_connector *conn; + struct drm_device *drm; + struct drm_crtc *crtc; + int ret; + + priv = drm_kunit_helper_connector_hdmi_init_with_edid_funcs(test, + BIT(HDMI_COLORSPACE_RGB), + 12, + &dummy_connector_hdmi_funcs, + test_edid_hdmi_1080p_rgb_yuv_dc_max_200mhz); + KUNIT_ASSERT_NOT_NULL(test, priv); + + drm = &priv->drm; + crtc = priv->crtc; + conn = &priv->connector; + info = &conn->display_info; + KUNIT_ASSERT_TRUE(test, info->is_hdmi); + KUNIT_ASSERT_GT(test, info->max_tmds_clock, 0); + + preferred = find_preferred_mode(conn); + KUNIT_ASSERT_NOT_NULL(test, preferred); + KUNIT_ASSERT_FALSE(test, preferred->flags & DRM_MODE_FLAG_DBLCLK); + + rate = drm_hdmi_compute_mode_clock(preferred, 12, HDMI_COLORSPACE_RGB); + KUNIT_ASSERT_GT(test, rate, info->max_tmds_clock * 1000); + + rate = drm_hdmi_compute_mode_clock(preferred, 10, HDMI_COLORSPACE_RGB); + KUNIT_ASSERT_LT(test, rate, info->max_tmds_clock * 1000); + + drm_modeset_acquire_init(&ctx, 0); + + ret = drm_kunit_helper_enable_crtc_connector(test, drm, + crtc, conn, + preferred, + &ctx); + KUNIT_EXPECT_EQ(test, ret, 0); + + conn_state = conn->state; + KUNIT_ASSERT_NOT_NULL(test, conn_state); + + KUNIT_EXPECT_EQ(test, conn_state->hdmi.output_bpc, 10); + KUNIT_EXPECT_EQ(test, conn_state->hdmi.output_format, HDMI_COLORSPACE_RGB); + KUNIT_EXPECT_EQ(test, conn_state->hdmi.tmds_char_rate, preferred->clock * 1250); + + drm_modeset_drop_locks(&ctx); + drm_modeset_acquire_fini(&ctx); +} + +/* + * Test that if: + * - We have an HDMI connector and a display supporting both RGB and YUV420 + * - The chosen mode can be supported in YUV420 output format only + * - The chosen mode has a TMDS character rate higher than the display + * supports in YUV420/12bpc + * - The chosen mode has a TMDS character rate lower than the display + * supports in YUV420/10bpc. + * + * Then we will pick the latter, and the computed TMDS character rate + * will be equal to 1.25 * 0.5 times the mode pixel clock. + */ +static void drm_test_check_max_tmds_rate_bpc_fallback_yuv420(struct kunit *test) +{ + struct drm_atomic_helper_connector_hdmi_priv *priv; + struct drm_modeset_acquire_ctx ctx; + struct drm_connector_state *conn_state; + struct drm_display_info *info; + struct drm_display_mode *yuv420_only_mode; + unsigned long long rate; + struct drm_connector *conn; + struct drm_device *drm; + struct drm_crtc *crtc; + int ret; + + priv = drm_kunit_helper_connector_hdmi_init_with_edid_funcs(test, + BIT(HDMI_COLORSPACE_RGB) | + BIT(HDMI_COLORSPACE_YUV420), + 12, + &dummy_connector_hdmi_funcs, + test_edid_hdmi_1080p_rgb_yuv_4k_yuv420_dc_max_200mhz); + KUNIT_ASSERT_NOT_NULL(test, priv); + + drm = &priv->drm; + crtc = priv->crtc; + conn = &priv->connector; + info = &conn->display_info; + KUNIT_ASSERT_TRUE(test, info->is_hdmi); + KUNIT_ASSERT_GT(test, info->max_tmds_clock, 0); + KUNIT_ASSERT_TRUE(test, conn->ycbcr_420_allowed); + + yuv420_only_mode = drm_kunit_display_mode_from_cea_vic(test, drm, 95); + KUNIT_ASSERT_NOT_NULL(test, yuv420_only_mode); + KUNIT_ASSERT_TRUE(test, drm_mode_is_420_only(info, yuv420_only_mode)); + + rate = drm_hdmi_compute_mode_clock(yuv420_only_mode, 12, HDMI_COLORSPACE_YUV420); + KUNIT_ASSERT_GT(test, rate, info->max_tmds_clock * 1000); + + rate = drm_hdmi_compute_mode_clock(yuv420_only_mode, 10, HDMI_COLORSPACE_YUV420); + KUNIT_ASSERT_LT(test, rate, info->max_tmds_clock * 1000); + + drm_modeset_acquire_init(&ctx, 0); + +retry_conn_enable: + ret = drm_kunit_helper_enable_crtc_connector(test, drm, crtc, conn, + yuv420_only_mode, &ctx); + if (ret == -EDEADLK) { + ret = drm_modeset_backoff(&ctx); + if (!ret) + goto retry_conn_enable; + } + KUNIT_EXPECT_EQ(test, ret, 0); + + conn_state = conn->state; + KUNIT_ASSERT_NOT_NULL(test, conn_state); + + KUNIT_EXPECT_EQ(test, conn_state->hdmi.output_bpc, 10); + KUNIT_EXPECT_EQ(test, conn_state->hdmi.output_format, HDMI_COLORSPACE_YUV420); + KUNIT_EXPECT_EQ(test, conn_state->hdmi.tmds_char_rate, yuv420_only_mode->clock * 625); + + drm_modeset_drop_locks(&ctx); + drm_modeset_acquire_fini(&ctx); +} + +/* + * Test that if: + * - We have an HDMI connector supporting both RGB and YUV422 and up to + * 12 bpc + * - The chosen mode has a TMDS character rate higher than the display + * supports in RGB/12bpc but lower than the display supports in + * RGB/10bpc + * - The chosen mode has a TMDS character rate lower than the display + * supports in YUV422/12bpc. + * + * Then we will prefer to keep the RGB format with a lower bpc over + * picking YUV422. + */ +static void drm_test_check_max_tmds_rate_bpc_fallback_ignore_yuv422(struct kunit *test) +{ + struct drm_atomic_helper_connector_hdmi_priv *priv; + struct drm_modeset_acquire_ctx ctx; + struct drm_connector_state *conn_state; + struct drm_display_info *info; + struct drm_display_mode *preferred; + unsigned long long rate; + struct drm_connector *conn; + struct drm_device *drm; + struct drm_crtc *crtc; + int ret; + + priv = drm_kunit_helper_connector_hdmi_init_with_edid_funcs(test, + BIT(HDMI_COLORSPACE_RGB) | + BIT(HDMI_COLORSPACE_YUV422) | + BIT(HDMI_COLORSPACE_YUV444), + 12, + &dummy_connector_hdmi_funcs, + test_edid_hdmi_1080p_rgb_yuv_dc_max_200mhz); + KUNIT_ASSERT_NOT_NULL(test, priv); + + drm = &priv->drm; + crtc = priv->crtc; + conn = &priv->connector; + info = &conn->display_info; + KUNIT_ASSERT_TRUE(test, info->is_hdmi); + KUNIT_ASSERT_GT(test, info->max_tmds_clock, 0); + + preferred = find_preferred_mode(conn); + KUNIT_ASSERT_NOT_NULL(test, preferred); + KUNIT_ASSERT_FALSE(test, preferred->flags & DRM_MODE_FLAG_DBLCLK); + + rate = drm_hdmi_compute_mode_clock(preferred, 10, HDMI_COLORSPACE_RGB); + KUNIT_ASSERT_LT(test, rate, info->max_tmds_clock * 1000); + + rate = drm_hdmi_compute_mode_clock(preferred, 12, HDMI_COLORSPACE_RGB); + KUNIT_ASSERT_GT(test, rate, info->max_tmds_clock * 1000); + + rate = drm_hdmi_compute_mode_clock(preferred, 12, HDMI_COLORSPACE_YUV422); + KUNIT_ASSERT_LT(test, rate, info->max_tmds_clock * 1000); + + drm_modeset_acquire_init(&ctx, 0); + + ret = drm_kunit_helper_enable_crtc_connector(test, drm, + crtc, conn, + preferred, + &ctx); + KUNIT_EXPECT_EQ(test, ret, 0); + + conn_state = conn->state; + KUNIT_ASSERT_NOT_NULL(test, conn_state); + + KUNIT_EXPECT_EQ(test, conn_state->hdmi.output_bpc, 10); + KUNIT_EXPECT_EQ(test, conn_state->hdmi.output_format, HDMI_COLORSPACE_RGB); + + drm_modeset_drop_locks(&ctx); + drm_modeset_acquire_fini(&ctx); +} + +/* + * Test that if: + * - We have an HDMI connector supporting both RGB and YUV420 and up to + * 12 bpc + * - The chosen mode has a TMDS character rate higher than the display + * supports in RGB/10bpc but lower than the display supports in + * RGB/8bpc + * - The chosen mode has a TMDS character rate lower than the display + * supports in YUV420/12bpc. + * + * Then we will prefer to keep the RGB format with a lower bpc over + * picking YUV420. + */ +static void drm_test_check_max_tmds_rate_bpc_fallback_ignore_yuv420(struct kunit *test) +{ + struct drm_atomic_helper_connector_hdmi_priv *priv; + struct drm_modeset_acquire_ctx ctx; + struct drm_connector_state *conn_state; + struct drm_display_info *info; + struct drm_display_mode *preferred; + unsigned long long rate; + struct drm_connector *conn; + struct drm_device *drm; + struct drm_crtc *crtc; + int ret; + + priv = drm_kunit_helper_connector_hdmi_init_with_edid_funcs(test, + BIT(HDMI_COLORSPACE_RGB) | + BIT(HDMI_COLORSPACE_YUV420), + 12, + &dummy_connector_hdmi_funcs, + test_edid_hdmi_4k_rgb_yuv420_dc_max_340mhz); + KUNIT_ASSERT_NOT_NULL(test, priv); + + drm = &priv->drm; + crtc = priv->crtc; + conn = &priv->connector; + info = &conn->display_info; + KUNIT_ASSERT_TRUE(test, info->is_hdmi); + KUNIT_ASSERT_GT(test, info->max_tmds_clock, 0); + KUNIT_ASSERT_TRUE(test, conn->ycbcr_420_allowed); + + preferred = find_preferred_mode(conn); + KUNIT_ASSERT_NOT_NULL(test, preferred); + KUNIT_ASSERT_FALSE(test, preferred->flags & DRM_MODE_FLAG_DBLCLK); + KUNIT_ASSERT_TRUE(test, drm_mode_is_420_also(info, preferred)); + + rate = drm_hdmi_compute_mode_clock(preferred, 8, HDMI_COLORSPACE_RGB); + KUNIT_ASSERT_LT(test, rate, info->max_tmds_clock * 1000); + + rate = drm_hdmi_compute_mode_clock(preferred, 10, HDMI_COLORSPACE_RGB); + KUNIT_ASSERT_GT(test, rate, info->max_tmds_clock * 1000); + + rate = drm_hdmi_compute_mode_clock(preferred, 12, HDMI_COLORSPACE_YUV420); + KUNIT_ASSERT_LT(test, rate, info->max_tmds_clock * 1000); + + drm_modeset_acquire_init(&ctx, 0); + +retry_conn_enable: + ret = drm_kunit_helper_enable_crtc_connector(test, drm, crtc, conn, + preferred, &ctx); + if (ret == -EDEADLK) { + ret = drm_modeset_backoff(&ctx); + if (!ret) + goto retry_conn_enable; + } + KUNIT_EXPECT_EQ(test, ret, 0); + + conn_state = conn->state; + KUNIT_ASSERT_NOT_NULL(test, conn_state); + + KUNIT_EXPECT_EQ(test, conn_state->hdmi.output_bpc, 8); + KUNIT_EXPECT_EQ(test, conn_state->hdmi.output_format, HDMI_COLORSPACE_RGB); + + drm_modeset_drop_locks(&ctx); + drm_modeset_acquire_fini(&ctx); +} + +/* + * Test that if a driver supports only RGB, but the chosen mode can be + * supported by the screen only in YUV420 output format, we end up with + * unsuccessful fallback attempts. + */ +static void drm_test_check_driver_unsupported_fallback_yuv420(struct kunit *test) +{ + struct drm_atomic_helper_connector_hdmi_priv *priv; + struct drm_modeset_acquire_ctx ctx; + struct drm_connector_state *conn_state; + struct drm_crtc_state *crtc_state; + struct drm_atomic_state *state; + struct drm_display_info *info; + struct drm_display_mode *preferred, *yuv420_only_mode; + struct drm_connector *conn; + struct drm_device *drm; + struct drm_crtc *crtc; + int ret; + + priv = drm_kunit_helper_connector_hdmi_init_with_edid_funcs(test, + BIT(HDMI_COLORSPACE_RGB), + 12, + &dummy_connector_hdmi_funcs, + test_edid_hdmi_1080p_rgb_yuv_4k_yuv420_dc_max_200mhz); + KUNIT_ASSERT_NOT_NULL(test, priv); + + drm = &priv->drm; + crtc = priv->crtc; + conn = &priv->connector; + info = &conn->display_info; + KUNIT_ASSERT_TRUE(test, info->is_hdmi); + KUNIT_ASSERT_FALSE(test, conn->ycbcr_420_allowed); + + preferred = find_preferred_mode(conn); + KUNIT_ASSERT_NOT_NULL(test, preferred); + KUNIT_ASSERT_FALSE(test, drm_mode_is_420_also(info, preferred)); + + yuv420_only_mode = drm_kunit_display_mode_from_cea_vic(test, drm, 95); + KUNIT_ASSERT_NOT_NULL(test, yuv420_only_mode); + KUNIT_ASSERT_TRUE(test, drm_mode_is_420_only(info, yuv420_only_mode)); + + drm_modeset_acquire_init(&ctx, 0); + +retry_conn_enable: + ret = drm_kunit_helper_enable_crtc_connector(test, drm, crtc, conn, + preferred, &ctx); + if (ret == -EDEADLK) { + ret = drm_modeset_backoff(&ctx); + if (!ret) + goto retry_conn_enable; + } + KUNIT_EXPECT_EQ(test, ret, 0); + + conn_state = conn->state; + KUNIT_ASSERT_NOT_NULL(test, conn_state); + KUNIT_EXPECT_EQ(test, conn_state->hdmi.output_format, HDMI_COLORSPACE_RGB); + + state = drm_kunit_helper_atomic_state_alloc(test, drm, &ctx); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, state); + +retry_crtc_state: + crtc_state = drm_atomic_get_crtc_state(state, crtc); + if (PTR_ERR(crtc_state) == -EDEADLK) { + drm_atomic_state_clear(state); + ret = drm_modeset_backoff(&ctx); + if (!ret) + goto retry_crtc_state; + } + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, crtc_state); + + ret = drm_atomic_set_mode_for_crtc(crtc_state, yuv420_only_mode); + KUNIT_EXPECT_EQ(test, ret, 0); + + ret = drm_atomic_check_only(state); + if (ret == -EDEADLK) { + drm_atomic_state_clear(state); + ret = drm_modeset_backoff(&ctx); + if (!ret) + goto retry_crtc_state; + } + KUNIT_ASSERT_LT(test, ret, 0); + + drm_modeset_drop_locks(&ctx); + drm_modeset_acquire_fini(&ctx); +} + +/* + * Test that if a driver and screen supports RGB and YUV formats, and we + * try to set the VIC 1 mode, we end up with 8bpc RGB even if we could + * have had a higher bpc. + */ +static void drm_test_check_output_bpc_format_vic_1(struct kunit *test) +{ + struct drm_atomic_helper_connector_hdmi_priv *priv; + struct drm_modeset_acquire_ctx ctx; + struct drm_connector_state *conn_state; + struct drm_display_info *info; + struct drm_display_mode *mode; + unsigned long long rate; + struct drm_connector *conn; + struct drm_device *drm; + struct drm_crtc *crtc; + int ret; + + priv = drm_kunit_helper_connector_hdmi_init_with_edid_funcs(test, + BIT(HDMI_COLORSPACE_RGB) | + BIT(HDMI_COLORSPACE_YUV422) | + BIT(HDMI_COLORSPACE_YUV444), + 12, + &dummy_connector_hdmi_funcs, + test_edid_hdmi_1080p_rgb_yuv_dc_max_200mhz); + KUNIT_ASSERT_NOT_NULL(test, priv); + + drm = &priv->drm; + conn = &priv->connector; + info = &conn->display_info; + KUNIT_ASSERT_TRUE(test, info->is_hdmi); + KUNIT_ASSERT_GT(test, info->max_tmds_clock, 0); + + mode = drm_kunit_display_mode_from_cea_vic(test, drm, 1); + KUNIT_ASSERT_NOT_NULL(test, mode); + + /* + * NOTE: We can't use drm_hdmi_compute_mode_clock() + * here because we're trying to get the rate of an invalid + * configuration. + * + * Thus, we have to calculate the rate by hand. + */ + rate = mode->clock * 1500; + KUNIT_ASSERT_LT(test, rate, info->max_tmds_clock * 1000); + + drm_modeset_acquire_init(&ctx, 0); + + crtc = priv->crtc; + ret = drm_kunit_helper_enable_crtc_connector(test, drm, + crtc, conn, + mode, + &ctx); + KUNIT_EXPECT_EQ(test, ret, 0); + + conn_state = conn->state; + KUNIT_ASSERT_NOT_NULL(test, conn_state); + + KUNIT_EXPECT_EQ(test, conn_state->hdmi.output_bpc, 8); + KUNIT_EXPECT_EQ(test, conn_state->hdmi.output_format, HDMI_COLORSPACE_RGB); + + drm_modeset_drop_locks(&ctx); + drm_modeset_acquire_fini(&ctx); +} + +/* + * Test that if a driver supports only RGB but the screen also supports + * YUV formats, we only end up with an RGB format. + */ +static void drm_test_check_output_bpc_format_driver_rgb_only(struct kunit *test) +{ + struct drm_atomic_helper_connector_hdmi_priv *priv; + struct drm_modeset_acquire_ctx ctx; + struct drm_connector_state *conn_state; + struct drm_display_info *info; + struct drm_display_mode *preferred; + unsigned long long rate; + struct drm_connector *conn; + struct drm_device *drm; + struct drm_crtc *crtc; + int ret; + + priv = drm_kunit_helper_connector_hdmi_init_with_edid_funcs(test, + BIT(HDMI_COLORSPACE_RGB), + 12, + &dummy_connector_hdmi_funcs, + test_edid_hdmi_1080p_rgb_yuv_dc_max_200mhz); + KUNIT_ASSERT_NOT_NULL(test, priv); + + drm = &priv->drm; + crtc = priv->crtc; + conn = &priv->connector; + info = &conn->display_info; + KUNIT_ASSERT_TRUE(test, info->is_hdmi); + KUNIT_ASSERT_GT(test, info->max_tmds_clock, 0); + + preferred = find_preferred_mode(conn); + KUNIT_ASSERT_NOT_NULL(test, preferred); + + /* + * We're making sure that YUV422 would be the preferred option + * here: we're always favouring higher bpc, we can't have RGB + * because the TMDS character rate exceeds the maximum supported + * by the display, and YUV422 works for that display. + * + * But since the driver only supports RGB, we should fallback to + * a lower bpc with RGB. + */ + rate = drm_hdmi_compute_mode_clock(preferred, 12, HDMI_COLORSPACE_RGB); + KUNIT_ASSERT_GT(test, rate, info->max_tmds_clock * 1000); + + rate = drm_hdmi_compute_mode_clock(preferred, 12, HDMI_COLORSPACE_YUV422); + KUNIT_ASSERT_LT(test, rate, info->max_tmds_clock * 1000); + + drm_modeset_acquire_init(&ctx, 0); + + ret = drm_kunit_helper_enable_crtc_connector(test, drm, + crtc, conn, + preferred, + &ctx); + KUNIT_EXPECT_EQ(test, ret, 0); + + conn_state = conn->state; + KUNIT_ASSERT_NOT_NULL(test, conn_state); + + KUNIT_EXPECT_LT(test, conn_state->hdmi.output_bpc, 12); + KUNIT_EXPECT_EQ(test, conn_state->hdmi.output_format, HDMI_COLORSPACE_RGB); + + drm_modeset_drop_locks(&ctx); + drm_modeset_acquire_fini(&ctx); +} + +/* + * Test that if a screen supports only RGB but the driver also supports + * YUV formats, we only end up with an RGB format. + */ +static void drm_test_check_output_bpc_format_display_rgb_only(struct kunit *test) +{ + struct drm_atomic_helper_connector_hdmi_priv *priv; + struct drm_modeset_acquire_ctx ctx; + struct drm_connector_state *conn_state; + struct drm_display_info *info; + struct drm_display_mode *preferred; + unsigned long long rate; + struct drm_connector *conn; + struct drm_device *drm; + struct drm_crtc *crtc; + int ret; + + priv = drm_kunit_helper_connector_hdmi_init_with_edid_funcs(test, + BIT(HDMI_COLORSPACE_RGB) | + BIT(HDMI_COLORSPACE_YUV422) | + BIT(HDMI_COLORSPACE_YUV444), + 12, + &dummy_connector_hdmi_funcs, + test_edid_hdmi_1080p_rgb_max_200mhz); + KUNIT_ASSERT_NOT_NULL(test, priv); + + drm = &priv->drm; + crtc = priv->crtc; + conn = &priv->connector; + info = &conn->display_info; + KUNIT_ASSERT_TRUE(test, info->is_hdmi); + KUNIT_ASSERT_GT(test, info->max_tmds_clock, 0); + + preferred = find_preferred_mode(conn); + KUNIT_ASSERT_NOT_NULL(test, preferred); + + /* + * We're making sure that YUV422 would be the preferred option + * here: we're always favouring higher bpc, we can't have RGB + * because the TMDS character rate exceeds the maximum supported + * by the display, and YUV422 works for that display. + * + * But since the display only supports RGB, we should fallback to + * a lower bpc with RGB. + */ + rate = drm_hdmi_compute_mode_clock(preferred, 12, HDMI_COLORSPACE_RGB); + KUNIT_ASSERT_GT(test, rate, info->max_tmds_clock * 1000); + + rate = drm_hdmi_compute_mode_clock(preferred, 12, HDMI_COLORSPACE_YUV422); + KUNIT_ASSERT_LT(test, rate, info->max_tmds_clock * 1000); + + drm_modeset_acquire_init(&ctx, 0); + + ret = drm_kunit_helper_enable_crtc_connector(test, drm, + crtc, conn, + preferred, + &ctx); + KUNIT_EXPECT_EQ(test, ret, 0); + + conn_state = conn->state; + KUNIT_ASSERT_NOT_NULL(test, conn_state); + + KUNIT_EXPECT_LT(test, conn_state->hdmi.output_bpc, 12); + KUNIT_EXPECT_EQ(test, conn_state->hdmi.output_format, HDMI_COLORSPACE_RGB); + + drm_modeset_drop_locks(&ctx); + drm_modeset_acquire_fini(&ctx); +} + +/* + * Test that if a display supports higher bpc but the driver only + * supports 8 bpc, we only end up with 8 bpc even if we could have had a + * higher bpc. + */ +static void drm_test_check_output_bpc_format_driver_8bpc_only(struct kunit *test) +{ + struct drm_atomic_helper_connector_hdmi_priv *priv; + struct drm_modeset_acquire_ctx ctx; + struct drm_connector_state *conn_state; + struct drm_display_info *info; + struct drm_display_mode *preferred; + unsigned long long rate; + struct drm_connector *conn; + struct drm_device *drm; + struct drm_crtc *crtc; + int ret; + + priv = drm_kunit_helper_connector_hdmi_init_with_edid_funcs(test, + BIT(HDMI_COLORSPACE_RGB), + 8, + &dummy_connector_hdmi_funcs, + test_edid_hdmi_1080p_rgb_yuv_dc_max_340mhz); + KUNIT_ASSERT_NOT_NULL(test, priv); + + drm = &priv->drm; + crtc = priv->crtc; + conn = &priv->connector; + info = &conn->display_info; + KUNIT_ASSERT_TRUE(test, info->is_hdmi); + KUNIT_ASSERT_GT(test, info->max_tmds_clock, 0); + + preferred = find_preferred_mode(conn); + KUNIT_ASSERT_NOT_NULL(test, preferred); + + /* + * We're making sure that we have headroom on the TMDS character + * clock to actually use 12bpc. + */ + rate = drm_hdmi_compute_mode_clock(preferred, 12, HDMI_COLORSPACE_RGB); + KUNIT_ASSERT_LT(test, rate, info->max_tmds_clock * 1000); + + drm_modeset_acquire_init(&ctx, 0); + + ret = drm_kunit_helper_enable_crtc_connector(test, drm, + crtc, conn, + preferred, + &ctx); + KUNIT_EXPECT_EQ(test, ret, 0); + + conn_state = conn->state; + KUNIT_ASSERT_NOT_NULL(test, conn_state); + + KUNIT_EXPECT_EQ(test, conn_state->hdmi.output_bpc, 8); + KUNIT_EXPECT_EQ(test, conn_state->hdmi.output_format, HDMI_COLORSPACE_RGB); + + drm_modeset_drop_locks(&ctx); + drm_modeset_acquire_fini(&ctx); +} + +/* + * Test that if a driver supports higher bpc but the display only + * supports 8 bpc, we only end up with 8 bpc even if we could have had a + * higher bpc. + */ +static void drm_test_check_output_bpc_format_display_8bpc_only(struct kunit *test) +{ + struct drm_atomic_helper_connector_hdmi_priv *priv; + struct drm_modeset_acquire_ctx ctx; + struct drm_connector_state *conn_state; + struct drm_display_info *info; + struct drm_display_mode *preferred; + unsigned long long rate; + struct drm_connector *conn; + struct drm_device *drm; + struct drm_crtc *crtc; + int ret; + + priv = drm_kunit_helper_connector_hdmi_init_with_edid_funcs(test, + BIT(HDMI_COLORSPACE_RGB) | + BIT(HDMI_COLORSPACE_YUV422) | + BIT(HDMI_COLORSPACE_YUV444), + 12, + &dummy_connector_hdmi_funcs, + test_edid_hdmi_1080p_rgb_max_340mhz); + KUNIT_ASSERT_NOT_NULL(test, priv); + + drm = &priv->drm; + crtc = priv->crtc; + conn = &priv->connector; + info = &conn->display_info; + KUNIT_ASSERT_TRUE(test, info->is_hdmi); + KUNIT_ASSERT_GT(test, info->max_tmds_clock, 0); + + preferred = find_preferred_mode(conn); + KUNIT_ASSERT_NOT_NULL(test, preferred); + + /* + * We're making sure that we have headroom on the TMDS character + * clock to actually use 12bpc. + */ + rate = drm_hdmi_compute_mode_clock(preferred, 12, HDMI_COLORSPACE_RGB); + KUNIT_ASSERT_LT(test, rate, info->max_tmds_clock * 1000); + + drm_modeset_acquire_init(&ctx, 0); + + ret = drm_kunit_helper_enable_crtc_connector(test, drm, + crtc, conn, + preferred, + &ctx); + KUNIT_EXPECT_EQ(test, ret, 0); + + conn_state = conn->state; + KUNIT_ASSERT_NOT_NULL(test, conn_state); + + KUNIT_EXPECT_EQ(test, conn_state->hdmi.output_bpc, 8); + KUNIT_EXPECT_EQ(test, conn_state->hdmi.output_format, HDMI_COLORSPACE_RGB); + + drm_modeset_drop_locks(&ctx); + drm_modeset_acquire_fini(&ctx); +} + +/* Test that atomic check succeeds when disabling a connector. */ +static void drm_test_check_disable_connector(struct kunit *test) +{ + struct drm_atomic_helper_connector_hdmi_priv *priv; + struct drm_modeset_acquire_ctx ctx; + struct drm_connector_state *conn_state; + struct drm_crtc_state *crtc_state; + struct drm_atomic_state *state; + struct drm_display_mode *preferred; + struct drm_connector *conn; + struct drm_device *drm; + struct drm_crtc *crtc; + int ret; + + priv = drm_kunit_helper_connector_hdmi_init(test, + BIT(HDMI_COLORSPACE_RGB), + 8); + KUNIT_ASSERT_NOT_NULL(test, priv); + + drm_modeset_acquire_init(&ctx, 0); + + conn = &priv->connector; + preferred = find_preferred_mode(conn); + KUNIT_ASSERT_NOT_NULL(test, preferred); + + drm = &priv->drm; + crtc = priv->crtc; + ret = drm_kunit_helper_enable_crtc_connector(test, drm, + crtc, conn, + preferred, + &ctx); + KUNIT_ASSERT_EQ(test, ret, 0); + + state = drm_kunit_helper_atomic_state_alloc(test, drm, &ctx); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, state); + + crtc_state = drm_atomic_get_crtc_state(state, crtc); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, crtc_state); + + crtc_state->active = false; + ret = drm_atomic_set_mode_for_crtc(crtc_state, NULL); + KUNIT_EXPECT_EQ(test, ret, 0); + + conn_state = drm_atomic_get_connector_state(state, conn); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, conn_state); + + ret = drm_atomic_set_crtc_for_connector(conn_state, NULL); + KUNIT_EXPECT_EQ(test, ret, 0); + + ret = drm_atomic_check_only(state); + KUNIT_ASSERT_EQ(test, ret, 0); + + drm_modeset_drop_locks(&ctx); + drm_modeset_acquire_fini(&ctx); +} + +static struct kunit_case drm_atomic_helper_connector_hdmi_check_tests[] = { + KUNIT_CASE(drm_test_check_broadcast_rgb_auto_cea_mode), + KUNIT_CASE(drm_test_check_broadcast_rgb_auto_cea_mode_vic_1), + KUNIT_CASE(drm_test_check_broadcast_rgb_full_cea_mode), + KUNIT_CASE(drm_test_check_broadcast_rgb_full_cea_mode_vic_1), + KUNIT_CASE(drm_test_check_broadcast_rgb_limited_cea_mode), + KUNIT_CASE(drm_test_check_broadcast_rgb_limited_cea_mode_vic_1), + KUNIT_CASE_PARAM(drm_test_check_broadcast_rgb_cea_mode_yuv420, + check_broadcast_rgb_cea_mode_yuv420_gen_params), + KUNIT_CASE(drm_test_check_broadcast_rgb_crtc_mode_changed), + KUNIT_CASE(drm_test_check_broadcast_rgb_crtc_mode_not_changed), + KUNIT_CASE(drm_test_check_disable_connector), + KUNIT_CASE(drm_test_check_hdmi_funcs_reject_rate), + KUNIT_CASE(drm_test_check_max_tmds_rate_bpc_fallback_rgb), + KUNIT_CASE(drm_test_check_max_tmds_rate_bpc_fallback_yuv420), + KUNIT_CASE(drm_test_check_max_tmds_rate_bpc_fallback_ignore_yuv422), + KUNIT_CASE(drm_test_check_max_tmds_rate_bpc_fallback_ignore_yuv420), + KUNIT_CASE(drm_test_check_driver_unsupported_fallback_yuv420), + KUNIT_CASE(drm_test_check_output_bpc_crtc_mode_changed), + KUNIT_CASE(drm_test_check_output_bpc_crtc_mode_not_changed), + KUNIT_CASE(drm_test_check_output_bpc_dvi), + KUNIT_CASE(drm_test_check_output_bpc_format_vic_1), + KUNIT_CASE(drm_test_check_output_bpc_format_display_8bpc_only), + KUNIT_CASE(drm_test_check_output_bpc_format_display_rgb_only), + KUNIT_CASE(drm_test_check_output_bpc_format_driver_8bpc_only), + KUNIT_CASE(drm_test_check_output_bpc_format_driver_rgb_only), + KUNIT_CASE(drm_test_check_tmds_char_rate_rgb_8bpc), + KUNIT_CASE(drm_test_check_tmds_char_rate_rgb_10bpc), + KUNIT_CASE(drm_test_check_tmds_char_rate_rgb_12bpc), + /* + * TODO: We should have tests to check that a change in the + * format triggers a CRTC mode change just like we do for the + * RGB Quantization and BPC. + * + * However, we don't have any way to control which format gets + * picked up aside from changing the BPC or mode which would + * already trigger a mode change. + */ + { } +}; + +static struct kunit_suite drm_atomic_helper_connector_hdmi_check_test_suite = { + .name = "drm_atomic_helper_connector_hdmi_check", + .test_cases = drm_atomic_helper_connector_hdmi_check_tests, +}; + +/* + * Test that the value of the Broadcast RGB property out of reset is set + * to auto. + */ +static void drm_test_check_broadcast_rgb_value(struct kunit *test) +{ + struct drm_atomic_helper_connector_hdmi_priv *priv; + struct drm_connector_state *conn_state; + struct drm_connector *conn; + + priv = drm_kunit_helper_connector_hdmi_init(test, + BIT(HDMI_COLORSPACE_RGB), + 8); + KUNIT_ASSERT_NOT_NULL(test, priv); + + conn = &priv->connector; + conn_state = conn->state; + KUNIT_EXPECT_EQ(test, conn_state->hdmi.broadcast_rgb, DRM_HDMI_BROADCAST_RGB_AUTO); +} + +/* + * Test that if the connector was initialised with a maximum bpc of 8, + * the value of the max_bpc and max_requested_bpc properties out of + * reset are also set to 8, and output_bpc is set to 0 and will be + * filled at atomic_check time. + */ +static void drm_test_check_bpc_8_value(struct kunit *test) +{ + struct drm_atomic_helper_connector_hdmi_priv *priv; + struct drm_connector_state *conn_state; + struct drm_connector *conn; + + priv = drm_kunit_helper_connector_hdmi_init(test, + BIT(HDMI_COLORSPACE_RGB), + 8); + KUNIT_ASSERT_NOT_NULL(test, priv); + + conn = &priv->connector; + conn_state = conn->state; + KUNIT_EXPECT_EQ(test, conn_state->max_bpc, 8); + KUNIT_EXPECT_EQ(test, conn_state->max_requested_bpc, 8); + KUNIT_EXPECT_EQ(test, conn_state->hdmi.output_bpc, 0); +} + +/* + * Test that if the connector was initialised with a maximum bpc of 10, + * the value of the max_bpc and max_requested_bpc properties out of + * reset are also set to 10, and output_bpc is set to 0 and will be + * filled at atomic_check time. + */ +static void drm_test_check_bpc_10_value(struct kunit *test) +{ + struct drm_atomic_helper_connector_hdmi_priv *priv; + struct drm_connector_state *conn_state; + struct drm_connector *conn; + + priv = drm_kunit_helper_connector_hdmi_init(test, + BIT(HDMI_COLORSPACE_RGB), + 10); + KUNIT_ASSERT_NOT_NULL(test, priv); + + conn = &priv->connector; + conn_state = conn->state; + KUNIT_EXPECT_EQ(test, conn_state->max_bpc, 10); + KUNIT_EXPECT_EQ(test, conn_state->max_requested_bpc, 10); + KUNIT_EXPECT_EQ(test, conn_state->hdmi.output_bpc, 0); +} + +/* + * Test that if the connector was initialised with a maximum bpc of 12, + * the value of the max_bpc and max_requested_bpc properties out of + * reset are also set to 12, and output_bpc is set to 0 and will be + * filled at atomic_check time. + */ +static void drm_test_check_bpc_12_value(struct kunit *test) +{ + struct drm_atomic_helper_connector_hdmi_priv *priv; + struct drm_connector_state *conn_state; + struct drm_connector *conn; + + priv = drm_kunit_helper_connector_hdmi_init(test, + BIT(HDMI_COLORSPACE_RGB), + 12); + KUNIT_ASSERT_NOT_NULL(test, priv); + + conn = &priv->connector; + conn_state = conn->state; + KUNIT_EXPECT_EQ(test, conn_state->max_bpc, 12); + KUNIT_EXPECT_EQ(test, conn_state->max_requested_bpc, 12); + KUNIT_EXPECT_EQ(test, conn_state->hdmi.output_bpc, 0); +} + +/* + * Test that the value of the output format property out of reset is set + * to RGB, even if the driver supports more than that. + */ +static void drm_test_check_format_value(struct kunit *test) +{ + struct drm_atomic_helper_connector_hdmi_priv *priv; + struct drm_connector_state *conn_state; + struct drm_connector *conn; + + priv = drm_kunit_helper_connector_hdmi_init(test, + BIT(HDMI_COLORSPACE_RGB) | + BIT(HDMI_COLORSPACE_YUV422) | + BIT(HDMI_COLORSPACE_YUV444), + 8); + KUNIT_ASSERT_NOT_NULL(test, priv); + + conn = &priv->connector; + conn_state = conn->state; + KUNIT_EXPECT_EQ(test, conn_state->hdmi.output_format, 0); +} + +/* + * Test that the value of the output format property out of reset is set + * to 0, and will be computed at atomic_check time. + */ +static void drm_test_check_tmds_char_value(struct kunit *test) +{ + struct drm_atomic_helper_connector_hdmi_priv *priv; + struct drm_connector_state *conn_state; + struct drm_connector *conn; + + priv = drm_kunit_helper_connector_hdmi_init(test, + BIT(HDMI_COLORSPACE_RGB) | + BIT(HDMI_COLORSPACE_YUV422) | + BIT(HDMI_COLORSPACE_YUV444), + 12); + KUNIT_ASSERT_NOT_NULL(test, priv); + + conn = &priv->connector; + conn_state = conn->state; + KUNIT_EXPECT_EQ(test, conn_state->hdmi.tmds_char_rate, 0); +} + +static struct kunit_case drm_atomic_helper_connector_hdmi_reset_tests[] = { + KUNIT_CASE(drm_test_check_broadcast_rgb_value), + KUNIT_CASE(drm_test_check_bpc_8_value), + KUNIT_CASE(drm_test_check_bpc_10_value), + KUNIT_CASE(drm_test_check_bpc_12_value), + KUNIT_CASE(drm_test_check_format_value), + KUNIT_CASE(drm_test_check_tmds_char_value), + { } +}; + +static struct kunit_suite drm_atomic_helper_connector_hdmi_reset_test_suite = { + .name = "drm_atomic_helper_connector_hdmi_reset", + .test_cases = drm_atomic_helper_connector_hdmi_reset_tests, +}; + +/* + * Test that the default behaviour for drm_hdmi_connector_mode_valid() is not + * to reject any modes. Pass a correct EDID and verify that preferred mode + * matches the expectations (1080p). + */ +static void drm_test_check_mode_valid(struct kunit *test) +{ + struct drm_atomic_helper_connector_hdmi_priv *priv; + struct drm_connector *conn; + struct drm_display_mode *preferred; + + priv = drm_kunit_helper_connector_hdmi_init(test, + BIT(HDMI_COLORSPACE_RGB), + 8); + KUNIT_ASSERT_NOT_NULL(test, priv); + + conn = &priv->connector; + preferred = find_preferred_mode(conn); + KUNIT_ASSERT_NOT_NULL(test, preferred); + + KUNIT_EXPECT_EQ(test, preferred->hdisplay, 1920); + KUNIT_EXPECT_EQ(test, preferred->vdisplay, 1080); + KUNIT_EXPECT_EQ(test, preferred->clock, 148500); +} + +/* + * Test that the drm_hdmi_connector_mode_valid() will reject modes depending on + * the .tmds_char_rate_valid() behaviour. + * Pass a correct EDID and verify that high-rate modes are filtered. + */ +static void drm_test_check_mode_valid_reject_rate(struct kunit *test) +{ + struct drm_atomic_helper_connector_hdmi_priv *priv; + struct drm_display_mode *preferred; + + priv = drm_kunit_helper_connector_hdmi_init_with_edid_funcs(test, + BIT(HDMI_COLORSPACE_RGB), + 8, + &reject_100mhz_connector_hdmi_funcs, + test_edid_hdmi_1080p_rgb_max_200mhz); + KUNIT_ASSERT_NOT_NULL(test, priv); + + /* + * Unlike the drm_test_check_mode_valid() here 1080p is rejected, but + * 480p is allowed. + */ + preferred = find_preferred_mode(&priv->connector); + KUNIT_ASSERT_NOT_NULL(test, preferred); + KUNIT_EXPECT_EQ(test, preferred->hdisplay, 640); + KUNIT_EXPECT_EQ(test, preferred->vdisplay, 480); + KUNIT_EXPECT_EQ(test, preferred->clock, 25200); +} + +/* + * Test that the drm_hdmi_connector_mode_valid() will not mark any modes as + * valid if .tmds_char_rate_valid() rejects all of them. Pass a correct EDID + * and verify that there is no preferred mode and no modes were set for the + * connector. + */ +static void drm_test_check_mode_valid_reject(struct kunit *test) +{ + struct drm_atomic_helper_connector_hdmi_priv *priv; + struct drm_connector *conn; + struct drm_display_mode *preferred; + unsigned char no_edid[] = {}; + int ret; + + priv = drm_kunit_helper_connector_hdmi_init_with_edid_funcs(test, + BIT(HDMI_COLORSPACE_RGB), + 8, + &reject_connector_hdmi_funcs, + no_edid); + KUNIT_ASSERT_NOT_NULL(test, priv); + + conn = &priv->connector; + + /* should reject all modes */ + ret = set_connector_edid(test, conn, + test_edid_hdmi_1080p_rgb_max_200mhz, + ARRAY_SIZE(test_edid_hdmi_1080p_rgb_max_200mhz)); + KUNIT_ASSERT_EQ(test, ret, 0); + + preferred = find_preferred_mode(conn); + KUNIT_ASSERT_NULL(test, preferred); +} + +/* + * Test that the drm_hdmi_connector_mode_valid() will reject modes that don't + * pass the info.max_tmds_clock filter. Pass crafted EDID and verify that + * high-rate modes are filtered. + */ +static void drm_test_check_mode_valid_reject_max_clock(struct kunit *test) +{ + struct drm_atomic_helper_connector_hdmi_priv *priv; + struct drm_connector *conn; + struct drm_display_mode *preferred; + + priv = drm_kunit_helper_connector_hdmi_init_with_edid_funcs(test, + BIT(HDMI_COLORSPACE_RGB), + 8, + &dummy_connector_hdmi_funcs, + test_edid_hdmi_1080p_rgb_max_100mhz); + KUNIT_ASSERT_NOT_NULL(test, priv); + + conn = &priv->connector; + KUNIT_ASSERT_EQ(test, conn->display_info.max_tmds_clock, 100 * 1000); + + preferred = find_preferred_mode(conn); + KUNIT_ASSERT_NOT_NULL(test, preferred); + KUNIT_EXPECT_EQ(test, preferred->hdisplay, 640); + KUNIT_EXPECT_EQ(test, preferred->vdisplay, 480); + KUNIT_EXPECT_EQ(test, preferred->clock, 25200); +} + +static struct kunit_case drm_atomic_helper_connector_hdmi_mode_valid_tests[] = { + KUNIT_CASE(drm_test_check_mode_valid), + KUNIT_CASE(drm_test_check_mode_valid_reject), + KUNIT_CASE(drm_test_check_mode_valid_reject_rate), + KUNIT_CASE(drm_test_check_mode_valid_reject_max_clock), + { } +}; + +static struct kunit_suite drm_atomic_helper_connector_hdmi_mode_valid_test_suite = { + .name = "drm_atomic_helper_connector_hdmi_mode_valid", + .test_cases = drm_atomic_helper_connector_hdmi_mode_valid_tests, +}; + +kunit_test_suites( + &drm_atomic_helper_connector_hdmi_check_test_suite, + &drm_atomic_helper_connector_hdmi_reset_test_suite, + &drm_atomic_helper_connector_hdmi_mode_valid_test_suite, +); + +MODULE_AUTHOR("Maxime Ripard <mripard@kernel.org>"); +MODULE_DESCRIPTION("Kunit test for drm_hdmi_state_helper functions"); +MODULE_LICENSE("GPL"); diff --git a/drivers/gpu/drm/tests/drm_kunit_edid.h b/drivers/gpu/drm/tests/drm_kunit_edid.h new file mode 100644 index 000000000000..c59c8528a3f7 --- /dev/null +++ b/drivers/gpu/drm/tests/drm_kunit_edid.h @@ -0,0 +1,864 @@ +/* SPDX-License-Identifier: GPL-2.0 */ + +#ifndef DRM_KUNIT_EDID_H_ +#define DRM_KUNIT_EDID_H_ + +/* + * edid-decode (hex): + * + * 00 ff ff ff ff ff ff 00 31 d8 2a 00 00 00 00 00 + * 00 21 01 03 81 a0 5a 78 0a 00 00 00 00 00 00 00 + * 00 00 00 00 00 00 01 01 01 01 01 01 01 01 01 01 + * 01 01 01 01 01 01 02 3a 80 18 71 38 2d 40 58 2c + * 45 00 40 84 63 00 00 1e 00 00 00 fc 00 54 65 73 + * 74 20 45 44 49 44 0a 20 20 20 00 00 00 fd 00 32 + * 46 1e 46 0f 00 0a 20 20 20 20 20 20 00 00 00 10 + * 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ab + * + * ---------------- + * + * Block 0, Base EDID: + * EDID Structure Version & Revision: 1.3 + * Vendor & Product Identification: + * Manufacturer: LNX + * Model: 42 + * Made in: 2023 + * Basic Display Parameters & Features: + * Digital display + * DFP 1.x compatible TMDS + * Maximum image size: 160 cm x 90 cm + * Gamma: 2.20 + * RGB color display + * First detailed timing is the preferred timing + * Color Characteristics: + * Red : 0.0000, 0.0000 + * Green: 0.0000, 0.0000 + * Blue : 0.0000, 0.0000 + * White: 0.0000, 0.0000 + * Established Timings I & II: none + * Standard Timings: none + * Detailed Timing Descriptors: + * DTD 1: 1920x1080 60.000000 Hz 16:9 67.500 kHz 148.500000 MHz (1600 mm x 900 mm) + * Hfront 88 Hsync 44 Hback 148 Hpol P + * Vfront 4 Vsync 5 Vback 36 Vpol P + * Display Product Name: 'Test EDID' + * Display Range Limits: + * Monitor ranges (GTF): 50-70 Hz V, 30-70 kHz H, max dotclock 150 MHz + * Dummy Descriptor: + * Checksum: 0xab + * + * ---------------- + * + * edid-decode 1.30.0-5367 + * edid-decode SHA: 41ebf7135691 2025-05-01 10:19:22 + * + * EDID conformity: PASS + */ +static const unsigned char test_edid_dvi_1080p[] = { + 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, 0x31, 0xd8, 0x2a, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x21, 0x01, 0x03, 0x81, 0xa0, 0x5a, 0x78, + 0x0a, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, + 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x02, 0x3a, 0x80, 0x18, 0x71, 0x38, + 0x2d, 0x40, 0x58, 0x2c, 0x45, 0x00, 0x40, 0x84, 0x63, 0x00, 0x00, 0x1e, + 0x00, 0x00, 0x00, 0xfc, 0x00, 0x54, 0x65, 0x73, 0x74, 0x20, 0x45, 0x44, + 0x49, 0x44, 0x0a, 0x20, 0x20, 0x20, 0x00, 0x00, 0x00, 0xfd, 0x00, 0x32, + 0x46, 0x1e, 0x46, 0x0f, 0x00, 0x0a, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, + 0x00, 0x00, 0x00, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xab +}; + +/* + * + * This edid is intentionally broken with the 100MHz limit. It's meant + * to be used only with tests in unusual situations. + * + * edid-decode (hex): + * + * 00 ff ff ff ff ff ff 00 31 d8 2a 00 00 00 00 00 + * 00 21 01 03 81 a0 5a 78 02 00 00 00 00 00 00 00 + * 00 00 00 20 00 00 01 01 01 01 01 01 01 01 01 01 + * 01 01 01 01 01 01 02 3a 80 18 71 38 2d 40 58 2c + * 45 00 40 84 63 00 00 1e 00 00 00 fc 00 54 65 73 + * 74 20 45 44 49 44 0a 20 20 20 00 00 00 fd 00 32 + * 46 1e 46 0f 00 0a 20 20 20 20 20 20 00 00 00 10 + * 00 00 00 00 00 00 00 00 00 00 00 00 00 00 01 92 + * + * 02 03 15 81 e3 05 00 20 41 10 e2 00 4a 67 03 0c + * 00 12 34 00 14 00 00 00 00 00 00 00 00 00 00 00 + * 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 + * 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 + * 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 + * 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 + * 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 + * 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 10 + * + * ---------------- + * + * Block 0, Base EDID: + * EDID Structure Version & Revision: 1.3 + * Vendor & Product Identification: + * Manufacturer: LNX + * Model: 42 + * Made in: 2023 + * Basic Display Parameters & Features: + * Digital display + * DFP 1.x compatible TMDS + * Maximum image size: 160 cm x 90 cm + * Gamma: 2.20 + * Monochrome or grayscale display + * First detailed timing is the preferred timing + * Color Characteristics: + * Red : 0.0000, 0.0000 + * Green: 0.0000, 0.0000 + * Blue : 0.0000, 0.0000 + * White: 0.0000, 0.0000 + * Established Timings I & II: + * DMT 0x04: 640x480 59.940476 Hz 4:3 31.469 kHz 25.175000 MHz + * Standard Timings: none + * Detailed Timing Descriptors: + * DTD 1: 1920x1080 60.000000 Hz 16:9 67.500 kHz 148.500000 MHz (1600 mm x 900 mm) + * Hfront 88 Hsync 44 Hback 148 Hpol P + * Vfront 4 Vsync 5 Vback 36 Vpol P + * Display Product Name: 'Test EDID' + * Display Range Limits: + * Monitor ranges (GTF): 50-70 Hz V, 30-70 kHz H, max dotclock 150 MHz + * Dummy Descriptor: + * Extension blocks: 1 + * Checksum: 0x92 + * + * ---------------- + * + * Block 1, CTA-861 Extension Block: + * Revision: 3 + * Underscans IT Video Formats by default + * Native detailed modes: 1 + * Colorimetry Data Block: + * sRGB + * Video Data Block: + * VIC 16: 1920x1080 60.000000 Hz 16:9 67.500 kHz 148.500000 MHz + * Video Capability Data Block: + * YCbCr quantization: No Data + * RGB quantization: Selectable (via AVI Q) + * PT scan behavior: No Data + * IT scan behavior: Always Underscanned + * CE scan behavior: Always Underscanned + * Vendor-Specific Data Block (HDMI), OUI 00-0C-03: + * Source physical address: 1.2.3.4 + * Maximum TMDS clock: 100 MHz + * Checksum: 0x10 Unused space in Extension Block: 106 bytes + * + * ---------------- + * + * edid-decode 1.30.0-5367 + * edid-decode SHA: 41ebf7135691 2025-05-01 10:19:22 + * + * Failures: + * + * EDID: + * CTA-861: The maximum HDMI TMDS clock is 100000 kHz, but one or more video timings go up to 148500 kHz. + * + * EDID conformity: FAIL + */ +static const unsigned char test_edid_hdmi_1080p_rgb_max_100mhz[] = { + 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, 0x31, 0xd8, 0x2a, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x21, 0x01, 0x03, 0x81, 0xa0, 0x5a, 0x78, + 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x20, + 0x00, 0x00, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, + 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x02, 0x3a, 0x80, 0x18, 0x71, 0x38, + 0x2d, 0x40, 0x58, 0x2c, 0x45, 0x00, 0x40, 0x84, 0x63, 0x00, 0x00, 0x1e, + 0x00, 0x00, 0x00, 0xfc, 0x00, 0x54, 0x65, 0x73, 0x74, 0x20, 0x45, 0x44, + 0x49, 0x44, 0x0a, 0x20, 0x20, 0x20, 0x00, 0x00, 0x00, 0xfd, 0x00, 0x32, + 0x46, 0x1e, 0x46, 0x0f, 0x00, 0x0a, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, + 0x00, 0x00, 0x00, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x92, 0x02, 0x03, 0x15, 0x81, + 0xe3, 0x05, 0x00, 0x20, 0x41, 0x10, 0xe2, 0x00, 0x4a, 0x67, 0x03, 0x0c, + 0x00, 0x12, 0x34, 0x00, 0x14, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x10 +}; + +/* + * edid-decode (hex): + * + * 00 ff ff ff ff ff ff 00 31 d8 2a 00 00 00 00 00 + * 00 21 01 03 81 a0 5a 78 02 00 00 00 00 00 00 00 + * 00 00 00 20 00 00 01 01 01 01 01 01 01 01 01 01 + * 01 01 01 01 01 01 02 3a 80 18 71 38 2d 40 58 2c + * 45 00 40 84 63 00 00 1e 00 00 00 fc 00 54 65 73 + * 74 20 45 44 49 44 0a 20 20 20 00 00 00 fd 00 32 + * 46 1e 46 0f 00 0a 20 20 20 20 20 20 00 00 00 10 + * 00 00 00 00 00 00 00 00 00 00 00 00 00 00 01 92 + * + * 02 03 15 81 e3 05 00 20 41 10 e2 00 4a 67 03 0c + * 00 12 34 00 28 00 00 00 00 00 00 00 00 00 00 00 + * 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 + * 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 + * 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 + * 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 + * 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 + * 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc + * + * ---------------- + * + * Block 0, Base EDID: + * EDID Structure Version & Revision: 1.3 + * Vendor & Product Identification: + * Manufacturer: LNX + * Model: 42 + * Made in: 2023 + * Basic Display Parameters & Features: + * Digital display + * DFP 1.x compatible TMDS + * Maximum image size: 160 cm x 90 cm + * Gamma: 2.20 + * Monochrome or grayscale display + * First detailed timing is the preferred timing + * Color Characteristics: + * Red : 0.0000, 0.0000 + * Green: 0.0000, 0.0000 + * Blue : 0.0000, 0.0000 + * White: 0.0000, 0.0000 + * Established Timings I & II: + * DMT 0x04: 640x480 59.940476 Hz 4:3 31.469 kHz 25.175000 MHz + * Standard Timings: none + * Detailed Timing Descriptors: + * DTD 1: 1920x1080 60.000000 Hz 16:9 67.500 kHz 148.500000 MHz (1600 mm x 900 mm) + * Hfront 88 Hsync 44 Hback 148 Hpol P + * Vfront 4 Vsync 5 Vback 36 Vpol P + * Display Product Name: 'Test EDID' + * Display Range Limits: + * Monitor ranges (GTF): 50-70 Hz V, 30-70 kHz H, max dotclock 150 MHz + * Dummy Descriptor: + * Extension blocks: 1 + * Checksum: 0x92 + * + * ---------------- + * + * Block 1, CTA-861 Extension Block: + * Revision: 3 + * Underscans IT Video Formats by default + * Native detailed modes: 1 + * Colorimetry Data Block: + * sRGB + * Video Data Block: + * VIC 16: 1920x1080 60.000000 Hz 16:9 67.500 kHz 148.500000 MHz + * Video Capability Data Block: + * YCbCr quantization: No Data + * RGB quantization: Selectable (via AVI Q) + * PT scan behavior: No Data + * IT scan behavior: Always Underscanned + * CE scan behavior: Always Underscanned + * Vendor-Specific Data Block (HDMI), OUI 00-0C-03: + * Source physical address: 1.2.3.4 + * Maximum TMDS clock: 200 MHz + * Checksum: 0xfc Unused space in Extension Block: 106 bytes + * + * ---------------- + * + * edid-decode 1.30.0-5367 + * edid-decode SHA: 41ebf7135691 2025-05-01 10:19:22 + * + * EDID conformity: PASS + */ +static const unsigned char test_edid_hdmi_1080p_rgb_max_200mhz[] = { + 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, 0x31, 0xd8, 0x2a, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x21, 0x01, 0x03, 0x81, 0xa0, 0x5a, 0x78, + 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x20, + 0x00, 0x00, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, + 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x02, 0x3a, 0x80, 0x18, 0x71, 0x38, + 0x2d, 0x40, 0x58, 0x2c, 0x45, 0x00, 0x40, 0x84, 0x63, 0x00, 0x00, 0x1e, + 0x00, 0x00, 0x00, 0xfc, 0x00, 0x54, 0x65, 0x73, 0x74, 0x20, 0x45, 0x44, + 0x49, 0x44, 0x0a, 0x20, 0x20, 0x20, 0x00, 0x00, 0x00, 0xfd, 0x00, 0x32, + 0x46, 0x1e, 0x46, 0x0f, 0x00, 0x0a, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, + 0x00, 0x00, 0x00, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x92, 0x02, 0x03, 0x15, 0x81, + 0xe3, 0x05, 0x00, 0x20, 0x41, 0x10, 0xe2, 0x00, 0x4a, 0x67, 0x03, 0x0c, + 0x00, 0x12, 0x34, 0x00, 0x28, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0xfc +}; + +/* + * edid-decode (hex): + * + * 00 ff ff ff ff ff ff 00 31 d8 2a 00 00 00 00 00 + * 00 21 01 03 81 a0 5a 78 02 00 00 00 00 00 00 00 + * 00 00 00 20 00 00 01 01 01 01 01 01 01 01 01 01 + * 01 01 01 01 01 01 02 3a 80 18 71 38 2d 40 58 2c + * 45 00 40 84 63 00 00 1e 00 00 00 fc 00 54 65 73 + * 74 20 45 44 49 44 0a 20 20 20 00 00 00 fd 00 32 + * 46 1e 46 0f 00 0a 20 20 20 20 20 20 00 00 00 10 + * 00 00 00 00 00 00 00 00 00 00 00 00 00 00 01 92 + * + * 02 03 15 81 e3 05 00 20 41 10 e2 00 4a 67 03 0c + * 00 12 34 00 44 00 00 00 00 00 00 00 00 00 00 00 + * 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 + * 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 + * 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 + * 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 + * 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 + * 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 e0 + * + * ---------------- + * + * Block 0, Base EDID: + * EDID Structure Version & Revision: 1.3 + * Vendor & Product Identification: + * Manufacturer: LNX + * Model: 42 + * Made in: 2023 + * Basic Display Parameters & Features: + * Digital display + * DFP 1.x compatible TMDS + * Maximum image size: 160 cm x 90 cm + * Gamma: 2.20 + * Monochrome or grayscale display + * First detailed timing is the preferred timing + * Color Characteristics: + * Red : 0.0000, 0.0000 + * Green: 0.0000, 0.0000 + * Blue : 0.0000, 0.0000 + * White: 0.0000, 0.0000 + * Established Timings I & II: + * DMT 0x04: 640x480 59.940476 Hz 4:3 31.469 kHz 25.175000 MHz + * Standard Timings: none + * Detailed Timing Descriptors: + * DTD 1: 1920x1080 60.000000 Hz 16:9 67.500 kHz 148.500000 MHz (1600 mm x 900 mm) + * Hfront 88 Hsync 44 Hback 148 Hpol P + * Vfront 4 Vsync 5 Vback 36 Vpol P + * Display Product Name: 'Test EDID' + * Display Range Limits: + * Monitor ranges (GTF): 50-70 Hz V, 30-70 kHz H, max dotclock 150 MHz + * Dummy Descriptor: + * Extension blocks: 1 + * Checksum: 0x92 + * + * ---------------- + * + * Block 1, CTA-861 Extension Block: + * Revision: 3 + * Underscans IT Video Formats by default + * Native detailed modes: 1 + * Colorimetry Data Block: + * sRGB + * Video Data Block: + * VIC 16: 1920x1080 60.000000 Hz 16:9 67.500 kHz 148.500000 MHz + * Video Capability Data Block: + * YCbCr quantization: No Data + * RGB quantization: Selectable (via AVI Q) + * PT scan behavior: No Data + * IT scan behavior: Always Underscanned + * CE scan behavior: Always Underscanned + * Vendor-Specific Data Block (HDMI), OUI 00-0C-03: + * Source physical address: 1.2.3.4 + * Maximum TMDS clock: 340 MHz + * Checksum: 0xe0 Unused space in Extension Block: 106 bytes + * + * ---------------- + * + * edid-decode 1.30.0-5367 + * edid-decode SHA: 41ebf7135691 2025-05-01 10:19:22 + * + * EDID conformity: PASS + */ +static const unsigned char test_edid_hdmi_1080p_rgb_max_340mhz[] = { + 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, 0x31, 0xd8, 0x2a, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x21, 0x01, 0x03, 0x81, 0xa0, 0x5a, 0x78, + 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x20, + 0x00, 0x00, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, + 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x02, 0x3a, 0x80, 0x18, 0x71, 0x38, + 0x2d, 0x40, 0x58, 0x2c, 0x45, 0x00, 0x40, 0x84, 0x63, 0x00, 0x00, 0x1e, + 0x00, 0x00, 0x00, 0xfc, 0x00, 0x54, 0x65, 0x73, 0x74, 0x20, 0x45, 0x44, + 0x49, 0x44, 0x0a, 0x20, 0x20, 0x20, 0x00, 0x00, 0x00, 0xfd, 0x00, 0x32, + 0x46, 0x1e, 0x46, 0x0f, 0x00, 0x0a, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, + 0x00, 0x00, 0x00, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x92, 0x02, 0x03, 0x15, 0x81, + 0xe3, 0x05, 0x00, 0x20, 0x41, 0x10, 0xe2, 0x00, 0x4a, 0x67, 0x03, 0x0c, + 0x00, 0x12, 0x34, 0x00, 0x44, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0xe0 +}; + +/* + * edid-decode (hex): + * + * 00 ff ff ff ff ff ff 00 31 d8 2a 00 00 00 00 00 + * 00 21 01 03 81 a0 5a 78 1a 00 00 00 00 00 00 00 + * 00 00 00 20 00 00 01 01 01 01 01 01 01 01 01 01 + * 01 01 01 01 01 01 02 3a 80 18 71 38 2d 40 58 2c + * 45 00 40 84 63 00 00 1e 00 00 00 fc 00 54 65 73 + * 74 20 45 44 49 44 0a 20 20 20 00 00 00 fd 00 32 + * 46 1e 46 0f 00 0a 20 20 20 20 20 20 00 00 00 10 + * 00 00 00 00 00 00 00 00 00 00 00 00 00 00 01 7a + * + * 02 03 15 b1 e3 05 00 20 41 10 e2 00 ca 67 03 0c + * 00 12 34 78 28 00 00 00 00 00 00 00 00 00 00 00 + * 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 + * 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 + * 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 + * 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 + * 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 + * 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 d4 + * + * ---------------- + * + * Block 0, Base EDID: + * EDID Structure Version & Revision: 1.3 + * Vendor & Product Identification: + * Manufacturer: LNX + * Model: 42 + * Made in: 2023 + * Basic Display Parameters & Features: + * Digital display + * DFP 1.x compatible TMDS + * Maximum image size: 160 cm x 90 cm + * Gamma: 2.20 + * Undefined display color type + * First detailed timing is the preferred timing + * Color Characteristics: + * Red : 0.0000, 0.0000 + * Green: 0.0000, 0.0000 + * Blue : 0.0000, 0.0000 + * White: 0.0000, 0.0000 + * Established Timings I & II: + * DMT 0x04: 640x480 59.940476 Hz 4:3 31.469 kHz 25.175000 MHz + * Standard Timings: none + * Detailed Timing Descriptors: + * DTD 1: 1920x1080 60.000000 Hz 16:9 67.500 kHz 148.500000 MHz (1600 mm x 900 mm) + * Hfront 88 Hsync 44 Hback 148 Hpol P + * Vfront 4 Vsync 5 Vback 36 Vpol P + * Display Product Name: 'Test EDID' + * Display Range Limits: + * Monitor ranges (GTF): 50-70 Hz V, 30-70 kHz H, max dotclock 150 MHz + * Dummy Descriptor: + * Extension blocks: 1 + * Checksum: 0x7a + * + * ---------------- + * + * Block 1, CTA-861 Extension Block: + * Revision: 3 + * Underscans IT Video Formats by default + * Supports YCbCr 4:4:4 + * Supports YCbCr 4:2:2 + * Native detailed modes: 1 + * Colorimetry Data Block: + * sRGB + * Video Data Block: + * VIC 16: 1920x1080 60.000000 Hz 16:9 67.500 kHz 148.500000 MHz + * Video Capability Data Block: + * YCbCr quantization: Selectable (via AVI YQ) + * RGB quantization: Selectable (via AVI Q) + * PT scan behavior: No Data + * IT scan behavior: Always Underscanned + * CE scan behavior: Always Underscanned + * Vendor-Specific Data Block (HDMI), OUI 00-0C-03: + * Source physical address: 1.2.3.4 + * DC_48bit + * DC_36bit + * DC_30bit + * DC_Y444 + * Maximum TMDS clock: 200 MHz + * Checksum: 0xd4 Unused space in Extension Block: 106 bytes + * + * ---------------- + * + * edid-decode 1.30.0-5367 + * edid-decode SHA: 41ebf7135691 2025-05-01 10:19:22 + * + * EDID conformity: PASS + */ +static const unsigned char test_edid_hdmi_1080p_rgb_yuv_dc_max_200mhz[] = { + 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, 0x31, 0xd8, 0x2a, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x21, 0x01, 0x03, 0x81, 0xa0, 0x5a, 0x78, + 0x1a, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x20, + 0x00, 0x00, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, + 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x02, 0x3a, 0x80, 0x18, 0x71, 0x38, + 0x2d, 0x40, 0x58, 0x2c, 0x45, 0x00, 0x40, 0x84, 0x63, 0x00, 0x00, 0x1e, + 0x00, 0x00, 0x00, 0xfc, 0x00, 0x54, 0x65, 0x73, 0x74, 0x20, 0x45, 0x44, + 0x49, 0x44, 0x0a, 0x20, 0x20, 0x20, 0x00, 0x00, 0x00, 0xfd, 0x00, 0x32, + 0x46, 0x1e, 0x46, 0x0f, 0x00, 0x0a, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, + 0x00, 0x00, 0x00, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x7a, 0x02, 0x03, 0x15, 0xb1, + 0xe3, 0x05, 0x00, 0x20, 0x41, 0x10, 0xe2, 0x00, 0xca, 0x67, 0x03, 0x0c, + 0x00, 0x12, 0x34, 0x78, 0x28, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0xd4 +}; + +/* + * edid-decode (hex): + * + * 00 ff ff ff ff ff ff 00 31 d8 2a 00 00 00 00 00 + * 00 21 01 03 81 a0 5a 78 0a 00 00 00 00 00 00 00 + * 00 00 00 20 00 00 01 01 01 01 01 01 01 01 01 01 + * 01 01 01 01 01 01 02 3a 80 18 71 38 2d 40 58 2c + * 45 00 40 84 63 00 00 1e 00 00 00 fc 00 54 65 73 + * 74 20 45 44 49 44 0a 20 20 20 00 00 00 fd 00 32 + * 46 1e 46 0f 00 0a 20 20 20 20 20 20 00 00 00 10 + * 00 00 00 00 00 00 00 00 00 00 00 00 00 00 01 8a + * + * 02 03 15 b1 e3 05 00 20 41 10 e2 00 ca 67 03 0c + * 00 12 34 78 44 00 00 00 00 00 00 00 00 00 00 00 + * 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 + * 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 + * 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 + * 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 + * 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 + * 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 b8 + * + * ---------------- + * + * Block 0, Base EDID: + * EDID Structure Version & Revision: 1.3 + * Vendor & Product Identification: + * Manufacturer: LNX + * Model: 42 + * Made in: 2023 + * Basic Display Parameters & Features: + * Digital display + * DFP 1.x compatible TMDS + * Maximum image size: 160 cm x 90 cm + * Gamma: 2.20 + * RGB color display + * First detailed timing is the preferred timing + * Color Characteristics: + * Red : 0.0000, 0.0000 + * Green: 0.0000, 0.0000 + * Blue : 0.0000, 0.0000 + * White: 0.0000, 0.0000 + * Established Timings I & II: + * DMT 0x04: 640x480 59.940476 Hz 4:3 31.469 kHz 25.175000 MHz + * Standard Timings: none + * Detailed Timing Descriptors: + * DTD 1: 1920x1080 60.000000 Hz 16:9 67.500 kHz 148.500000 MHz (1600 mm x 900 mm) + * Hfront 88 Hsync 44 Hback 148 Hpol P + * Vfront 4 Vsync 5 Vback 36 Vpol P + * Display Product Name: 'Test EDID' + * Display Range Limits: + * Monitor ranges (GTF): 50-70 Hz V, 30-70 kHz H, max dotclock 150 MHz + * Dummy Descriptor: + * Extension blocks: 1 + * Checksum: 0x8a + * + * ---------------- + * + * Block 1, CTA-861 Extension Block: + * Revision: 3 + * Underscans IT Video Formats by default + * Supports YCbCr 4:4:4 + * Supports YCbCr 4:2:2 + * Native detailed modes: 1 + * Colorimetry Data Block: + * sRGB + * Video Data Block: + * VIC 16: 1920x1080 60.000000 Hz 16:9 67.500 kHz 148.500000 MHz + * Video Capability Data Block: + * YCbCr quantization: Selectable (via AVI YQ) + * RGB quantization: Selectable (via AVI Q) + * PT scan behavior: No Data + * IT scan behavior: Always Underscanned + * CE scan behavior: Always Underscanned + * Vendor-Specific Data Block (HDMI), OUI 00-0C-03: + * Source physical address: 1.2.3.4 + * DC_48bit + * DC_36bit + * DC_30bit + * DC_Y444 + * Maximum TMDS clock: 340 MHz + * Checksum: 0xb8 Unused space in Extension Block: 106 bytes + * + * ---------------- + * + * edid-decode 1.30.0-5367 + * edid-decode SHA: 41ebf7135691 2025-05-01 10:19:22 + * + * EDID conformity: PASS + */ +static const unsigned char test_edid_hdmi_1080p_rgb_yuv_dc_max_340mhz[] = { + 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, 0x31, 0xd8, 0x2a, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x21, 0x01, 0x03, 0x81, 0xa0, 0x5a, 0x78, + 0x0a, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x20, + 0x00, 0x00, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, + 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x02, 0x3a, 0x80, 0x18, 0x71, 0x38, + 0x2d, 0x40, 0x58, 0x2c, 0x45, 0x00, 0x40, 0x84, 0x63, 0x00, 0x00, 0x1e, + 0x00, 0x00, 0x00, 0xfc, 0x00, 0x54, 0x65, 0x73, 0x74, 0x20, 0x45, 0x44, + 0x49, 0x44, 0x0a, 0x20, 0x20, 0x20, 0x00, 0x00, 0x00, 0xfd, 0x00, 0x32, + 0x46, 0x1e, 0x46, 0x0f, 0x00, 0x0a, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, + 0x00, 0x00, 0x00, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x8a, 0x02, 0x03, 0x15, 0xb1, + 0xe3, 0x05, 0x00, 0x20, 0x41, 0x10, 0xe2, 0x00, 0xca, 0x67, 0x03, 0x0c, + 0x00, 0x12, 0x34, 0x78, 0x44, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0xb8 +}; + +/* + * Max resolution: + * - 1920x1080@60Hz with RGB, YUV444, YUV422 + * - 3840x2160@30Hz with YUV420 only + * Max BPC: 16 for all modes + * Max TMDS clock: 200 MHz + * + * edid-decode (hex): + * + * 00 ff ff ff ff ff ff 00 31 d8 34 00 00 00 00 00 + * ff 23 01 03 80 60 36 78 0f ee 91 a3 54 4c 99 26 + * 0f 50 54 20 00 00 01 01 01 01 01 01 01 01 01 01 + * 01 01 01 01 01 01 02 3a 80 18 71 38 2d 40 58 2c + * 45 00 c0 1c 32 00 00 1e 00 00 00 fc 00 54 65 73 + * 74 20 45 44 49 44 0a 20 20 20 00 00 00 fd 00 18 + * 55 18 5e 11 00 0a 20 20 20 20 20 20 00 00 00 10 + * 00 00 00 00 00 00 00 00 00 00 00 00 00 00 01 bb + * + * 02 03 29 31 42 90 5f 6c 03 0c 00 10 00 78 28 20 + * 00 00 01 03 6d d8 5d c4 01 28 80 07 00 00 00 00 + * 00 00 e3 0f 00 00 e2 0e 5f 00 00 00 00 00 00 00 + * 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 + * 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 + * 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 + * 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 + * 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ca + * + * ---------------- + * + * Block 0, Base EDID: + * EDID Structure Version & Revision: 1.3 + * Vendor & Product Identification: + * Manufacturer: LNX + * Model: 52 + * Model year: 2025 + * Basic Display Parameters & Features: + * Digital display + * Maximum image size: 96 cm x 54 cm + * Gamma: 2.20 + * RGB color display + * Default (sRGB) color space is primary color space + * First detailed timing is the preferred timing + * Supports GTF timings within operating range + * Color Characteristics: + * Red : 0.6396, 0.3300 + * Green: 0.2998, 0.5996 + * Blue : 0.1503, 0.0595 + * White: 0.3125, 0.3291 + * Established Timings I & II: + * DMT 0x04: 640x480 59.940476 Hz 4:3 31.469 kHz 25.175000 MHz + * Standard Timings: none + * Detailed Timing Descriptors: + * DTD 1: 1920x1080 60.000000 Hz 16:9 67.500 kHz 148.500000 MHz (960 mm x 540 mm) + * Hfront 88 Hsync 44 Hback 148 Hpol P + * Vfront 4 Vsync 5 Vback 36 Vpol P + * Display Product Name: 'Test EDID' + * Display Range Limits: + * Monitor ranges (GTF): 24-85 Hz V, 24-94 kHz H, max dotclock 170 MHz + * Dummy Descriptor: + * Extension blocks: 1 + * Checksum: 0xbb + * + * ---------------- + * + * Block 1, CTA-861 Extension Block: + * Revision: 3 + * Supports YCbCr 4:4:4 + * Supports YCbCr 4:2:2 + * Native detailed modes: 1 + * Video Data Block: + * VIC 16: 1920x1080 60.000000 Hz 16:9 67.500 kHz 148.500000 MHz (native) + * VIC 95: 3840x2160 30.000000 Hz 16:9 67.500 kHz 297.000000 MHz + * Vendor-Specific Data Block (HDMI), OUI 00-0C-03: + * Source physical address: 1.0.0.0 + * DC_48bit + * DC_36bit + * DC_30bit + * DC_Y444 + * Maximum TMDS clock: 200 MHz + * Extended HDMI video details: + * Vendor-Specific Data Block (HDMI Forum), OUI C4-5D-D8: + * Version: 1 + * Maximum TMDS Character Rate: 200 MHz + * SCDC Present + * Supports 16-bits/component Deep Color 4:2:0 Pixel Encoding + * Supports 12-bits/component Deep Color 4:2:0 Pixel Encoding + * Supports 10-bits/component Deep Color 4:2:0 Pixel Encoding + * YCbCr 4:2:0 Capability Map Data Block: + * Empty Capability Map + * YCbCr 4:2:0 Video Data Block: + * VIC 95: 3840x2160 30.000000 Hz 16:9 67.500 kHz 297.000000 MHz + * Checksum: 0xca + */ +static const unsigned char test_edid_hdmi_1080p_rgb_yuv_4k_yuv420_dc_max_200mhz[] = { + 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, 0x31, 0xd8, 0x34, 0x00, + 0x00, 0x00, 0x00, 0x00, 0xff, 0x23, 0x01, 0x03, 0x80, 0x60, 0x36, 0x78, + 0x0f, 0xee, 0x91, 0xa3, 0x54, 0x4c, 0x99, 0x26, 0x0f, 0x50, 0x54, 0x20, + 0x00, 0x00, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, + 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x02, 0x3a, 0x80, 0x18, 0x71, 0x38, + 0x2d, 0x40, 0x58, 0x2c, 0x45, 0x00, 0xc0, 0x1c, 0x32, 0x00, 0x00, 0x1e, + 0x00, 0x00, 0x00, 0xfc, 0x00, 0x54, 0x65, 0x73, 0x74, 0x20, 0x45, 0x44, + 0x49, 0x44, 0x0a, 0x20, 0x20, 0x20, 0x00, 0x00, 0x00, 0xfd, 0x00, 0x18, + 0x55, 0x18, 0x5e, 0x11, 0x00, 0x0a, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, + 0x00, 0x00, 0x00, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0xbb, 0x02, 0x03, 0x29, 0x31, + 0x42, 0x90, 0x5f, 0x6c, 0x03, 0x0c, 0x00, 0x10, 0x00, 0x78, 0x28, 0x20, + 0x00, 0x00, 0x01, 0x03, 0x6d, 0xd8, 0x5d, 0xc4, 0x01, 0x28, 0x80, 0x07, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xe3, 0x0f, 0x00, 0x00, 0xe2, 0x0e, + 0x5f, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0xca +}; + +/* + * Max resolution: 3840x2160@30Hz with RGB, YUV444, YUV422, YUV420 + * Max BPC: 16 for all modes + * Max TMDS clock: 340 MHz + * + * edid-decode (hex): + * + * 00 ff ff ff ff ff ff 00 31 d8 34 00 00 00 00 00 + * ff 23 01 03 80 60 36 78 0f ee 91 a3 54 4c 99 26 + * 0f 50 54 20 00 00 01 01 01 01 01 01 01 01 01 01 + * 01 01 01 01 01 01 04 74 00 30 f2 70 5a 80 b0 58 + * 8a 00 40 84 63 00 00 1e 00 00 00 fc 00 54 65 73 + * 74 20 45 44 49 44 0a 20 20 20 00 00 00 fd 00 18 + * 55 18 5e 22 00 0a 20 20 20 20 20 20 00 00 00 10 + * 00 00 00 00 00 00 00 00 00 00 00 00 00 00 01 ce + * + * 02 03 27 31 41 5f 6c 03 0c 00 10 00 78 44 20 00 + * 00 01 03 6d d8 5d c4 01 44 80 07 00 00 00 00 00 + * 00 e3 0f 01 00 e1 0e 00 00 00 00 00 00 00 00 00 + * 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 + * 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 + * 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 + * 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 + * 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 84 + * + * ---------------- + * + * Block 0, Base EDID: + * EDID Structure Version & Revision: 1.3 + * Vendor & Product Identification: + * Manufacturer: LNX + * Model: 52 + * Model year: 2025 + * Basic Display Parameters & Features: + * Digital display + * Maximum image size: 96 cm x 54 cm + * Gamma: 2.20 + * RGB color display + * Default (sRGB) color space is primary color space + * First detailed timing is the preferred timing + * Supports GTF timings within operating range + * Color Characteristics: + * Red : 0.6396, 0.3300 + * Green: 0.2998, 0.5996 + * Blue : 0.1503, 0.0595 + * White: 0.3125, 0.3291 + * Established Timings I & II: + * DMT 0x04: 640x480 59.940476 Hz 4:3 31.469 kHz 25.175000 MHz + * Standard Timings: none + * Detailed Timing Descriptors: + * DTD 1: 3840x2160 30.000000 Hz 16:9 67.500 kHz 297.000000 MHz (1600 mm x 900 mm) + * Hfront 176 Hsync 88 Hback 296 Hpol P + * Vfront 8 Vsync 10 Vback 72 Vpol P + * Display Product Name: 'Test EDID' + * Display Range Limits: + * Monitor ranges (GTF): 24-85 Hz V, 24-94 kHz H, max dotclock 340 MHz + * Dummy Descriptor: + * Extension blocks: 1 + * Checksum: 0xce + * + * ---------------- + * + * Block 1, CTA-861 Extension Block: + * Revision: 3 + * Supports YCbCr 4:4:4 + * Supports YCbCr 4:2:2 + * Native detailed modes: 1 + * Video Data Block: + * VIC 95: 3840x2160 30.000000 Hz 16:9 67.500 kHz 297.000000 MHz + * Vendor-Specific Data Block (HDMI), OUI 00-0C-03: + * Source physical address: 1.0.0.0 + * DC_48bit + * DC_36bit + * DC_30bit + * DC_Y444 + * Maximum TMDS clock: 340 MHz + * Extended HDMI video details: + * Vendor-Specific Data Block (HDMI Forum), OUI C4-5D-D8: + * Version: 1 + * Maximum TMDS Character Rate: 340 MHz + * SCDC Present + * Supports 16-bits/component Deep Color 4:2:0 Pixel Encoding + * Supports 12-bits/component Deep Color 4:2:0 Pixel Encoding + * Supports 10-bits/component Deep Color 4:2:0 Pixel Encoding + * YCbCr 4:2:0 Capability Map Data Block: + * VIC 95: 3840x2160 30.000000 Hz 16:9 67.500 kHz 297.000000 MHz + * YCbCr 4:2:0 Video Data Block: + * Checksum: 0x84 + */ +static const unsigned char test_edid_hdmi_4k_rgb_yuv420_dc_max_340mhz[] = { + 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, 0x31, 0xd8, 0x34, 0x00, + 0x00, 0x00, 0x00, 0x00, 0xff, 0x23, 0x01, 0x03, 0x80, 0x60, 0x36, 0x78, + 0x0f, 0xee, 0x91, 0xa3, 0x54, 0x4c, 0x99, 0x26, 0x0f, 0x50, 0x54, 0x20, + 0x00, 0x00, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, + 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x04, 0x74, 0x00, 0x30, 0xf2, 0x70, + 0x5a, 0x80, 0xb0, 0x58, 0x8a, 0x00, 0x40, 0x84, 0x63, 0x00, 0x00, 0x1e, + 0x00, 0x00, 0x00, 0xfc, 0x00, 0x54, 0x65, 0x73, 0x74, 0x20, 0x45, 0x44, + 0x49, 0x44, 0x0a, 0x20, 0x20, 0x20, 0x00, 0x00, 0x00, 0xfd, 0x00, 0x18, + 0x55, 0x18, 0x5e, 0x22, 0x00, 0x0a, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, + 0x00, 0x00, 0x00, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0xce, 0x02, 0x03, 0x27, 0x31, + 0x41, 0x5f, 0x6c, 0x03, 0x0c, 0x00, 0x10, 0x00, 0x78, 0x44, 0x20, 0x00, + 0x00, 0x01, 0x03, 0x6d, 0xd8, 0x5d, 0xc4, 0x01, 0x44, 0x80, 0x07, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0xe3, 0x0f, 0x01, 0x00, 0xe1, 0x0e, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x84 +}; + +#endif // DRM_KUNIT_EDID_H_ diff --git a/drivers/gpu/drm/tests/drm_kunit_helpers.c b/drivers/gpu/drm/tests/drm_kunit_helpers.c index e98b4150f556..04edb6079c0d 100644 --- a/drivers/gpu/drm/tests/drm_kunit_helpers.c +++ b/drivers/gpu/drm/tests/drm_kunit_helpers.c @@ -1,35 +1,26 @@ // SPDX-License-Identifier: GPL-2.0 +#include <drm/drm_atomic.h> +#include <drm/drm_atomic_helper.h> +#include <drm/drm_atomic_uapi.h> #include <drm/drm_drv.h> +#include <drm/drm_edid.h> +#include <drm/drm_fourcc.h> #include <drm/drm_kunit_helpers.h> #include <drm/drm_managed.h> +#include <kunit/device.h> #include <kunit/resource.h> #include <linux/device.h> +#include <linux/export.h> #include <linux/platform_device.h> #define KUNIT_DEVICE_NAME "drm-kunit-mock-device" static const struct drm_mode_config_funcs drm_mode_config_funcs = { -}; - -static int fake_probe(struct platform_device *pdev) -{ - return 0; -} - -static int fake_remove(struct platform_device *pdev) -{ - return 0; -} - -static struct platform_driver fake_platform_driver = { - .probe = fake_probe, - .remove = fake_remove, - .driver = { - .name = KUNIT_DEVICE_NAME, - }, + .atomic_check = drm_atomic_helper_check, + .atomic_commit = drm_atomic_helper_commit, }; /** @@ -41,27 +32,15 @@ static struct platform_driver fake_platform_driver = { * able to leverage the usual infrastructure and most notably the * device-managed resources just like a "real" device. * - * Callers need to make sure drm_kunit_helper_free_device() on the - * device when done. + * Resources will be cleaned up automatically, but the removal can be + * forced using @drm_kunit_helper_free_device. * * Returns: * A pointer to the new device, or an ERR_PTR() otherwise. */ struct device *drm_kunit_helper_alloc_device(struct kunit *test) { - struct platform_device *pdev; - int ret; - - ret = platform_driver_register(&fake_platform_driver); - KUNIT_ASSERT_EQ(test, ret, 0); - - pdev = platform_device_alloc(KUNIT_DEVICE_NAME, PLATFORM_DEVID_NONE); - KUNIT_ASSERT_NOT_ERR_OR_NULL(test, pdev); - - ret = platform_device_add(pdev); - KUNIT_ASSERT_EQ(test, ret, 0); - - return &pdev->dev; + return kunit_device_register(test, KUNIT_DEVICE_NAME); } EXPORT_SYMBOL_GPL(drm_kunit_helper_alloc_device); @@ -74,10 +53,7 @@ EXPORT_SYMBOL_GPL(drm_kunit_helper_alloc_device); */ void drm_kunit_helper_free_device(struct kunit *test, struct device *dev) { - struct platform_device *pdev = to_platform_device(dev); - - platform_device_unregister(pdev); - platform_driver_unregister(&fake_platform_driver); + kunit_device_unregister(test, dev); } EXPORT_SYMBOL_GPL(drm_kunit_helper_free_device); @@ -106,5 +82,319 @@ __drm_kunit_helper_alloc_drm_device_with_driver(struct kunit *test, } EXPORT_SYMBOL_GPL(__drm_kunit_helper_alloc_drm_device_with_driver); +static void kunit_action_drm_atomic_state_put(void *ptr) +{ + struct drm_atomic_state *state = ptr; + + drm_atomic_state_put(state); +} + +/** + * drm_kunit_helper_atomic_state_alloc - Allocates an atomic state + * @test: The test context object + * @drm: The device to alloc the state for + * @ctx: Locking context for that atomic update + * + * Allocates a empty atomic state. + * + * The state is tied to the kunit test context, so we must not call + * drm_atomic_state_put() on it, it will be done so automatically. + * + * Returns: + * An ERR_PTR on error, a pointer to the newly allocated state otherwise + */ +struct drm_atomic_state * +drm_kunit_helper_atomic_state_alloc(struct kunit *test, + struct drm_device *drm, + struct drm_modeset_acquire_ctx *ctx) +{ + struct drm_atomic_state *state; + int ret; + + state = drm_atomic_state_alloc(drm); + if (!state) + return ERR_PTR(-ENOMEM); + + ret = kunit_add_action_or_reset(test, + kunit_action_drm_atomic_state_put, + state); + if (ret) + return ERR_PTR(ret); + + state->acquire_ctx = ctx; + + return state; +} +EXPORT_SYMBOL_GPL(drm_kunit_helper_atomic_state_alloc); + +static const uint32_t default_plane_formats[] = { + DRM_FORMAT_XRGB8888, +}; + +static const uint64_t default_plane_modifiers[] = { + DRM_FORMAT_MOD_LINEAR, + DRM_FORMAT_MOD_INVALID +}; + +static const struct drm_plane_helper_funcs default_plane_helper_funcs = { +}; + +static const struct drm_plane_funcs default_plane_funcs = { + .atomic_destroy_state = drm_atomic_helper_plane_destroy_state, + .atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state, + .reset = drm_atomic_helper_plane_reset, +}; + +/** + * drm_kunit_helper_create_primary_plane - Creates a mock primary plane for a KUnit test + * @test: The test context object + * @drm: The device to alloc the plane for + * @funcs: Callbacks for the new plane. Optional. + * @helper_funcs: Helpers callbacks for the new plane. Optional. + * @formats: array of supported formats (DRM_FORMAT\_\*). Optional. + * @num_formats: number of elements in @formats + * @modifiers: array of struct drm_format modifiers terminated by + * DRM_FORMAT_MOD_INVALID. Optional. + * + * This allocates and initializes a mock struct &drm_plane meant to be + * part of a mock device for a KUnit test. + * + * Resources will be cleaned up automatically. + * + * @funcs will default to the default helpers implementations. + * @helper_funcs will default to an empty implementation. @formats will + * default to XRGB8888 only. @modifiers will default to a linear + * modifier only. + * + * Returns: + * A pointer to the new plane, or an ERR_PTR() otherwise. + */ +struct drm_plane * +drm_kunit_helper_create_primary_plane(struct kunit *test, + struct drm_device *drm, + const struct drm_plane_funcs *funcs, + const struct drm_plane_helper_funcs *helper_funcs, + const uint32_t *formats, + unsigned int num_formats, + const uint64_t *modifiers) +{ + struct drm_plane *plane; + + if (!funcs) + funcs = &default_plane_funcs; + + if (!helper_funcs) + helper_funcs = &default_plane_helper_funcs; + + if (!formats || !num_formats) { + formats = default_plane_formats; + num_formats = ARRAY_SIZE(default_plane_formats); + } + + if (!modifiers) + modifiers = default_plane_modifiers; + + plane = __drmm_universal_plane_alloc(drm, + sizeof(struct drm_plane), 0, + 0, + funcs, + formats, + num_formats, + default_plane_modifiers, + DRM_PLANE_TYPE_PRIMARY, + NULL); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, plane); + + drm_plane_helper_add(plane, helper_funcs); + + return plane; +} +EXPORT_SYMBOL_GPL(drm_kunit_helper_create_primary_plane); + +static const struct drm_crtc_helper_funcs default_crtc_helper_funcs = { +}; + +static const struct drm_crtc_funcs default_crtc_funcs = { + .atomic_destroy_state = drm_atomic_helper_crtc_destroy_state, + .atomic_duplicate_state = drm_atomic_helper_crtc_duplicate_state, + .reset = drm_atomic_helper_crtc_reset, +}; + +/** + * drm_kunit_helper_create_crtc - Creates a mock CRTC for a KUnit test + * @test: The test context object + * @drm: The device to alloc the plane for + * @primary: Primary plane for CRTC + * @cursor: Cursor plane for CRTC. Optional. + * @funcs: Callbacks for the new plane. Optional. + * @helper_funcs: Helpers callbacks for the new plane. Optional. + * + * This allocates and initializes a mock struct &drm_crtc meant to be + * part of a mock device for a KUnit test. + * + * Resources will be cleaned up automatically. + * + * @funcs will default to the default helpers implementations. + * @helper_funcs will default to an empty implementation. + * + * Returns: + * A pointer to the new CRTC, or an ERR_PTR() otherwise. + */ +struct drm_crtc * +drm_kunit_helper_create_crtc(struct kunit *test, + struct drm_device *drm, + struct drm_plane *primary, + struct drm_plane *cursor, + const struct drm_crtc_funcs *funcs, + const struct drm_crtc_helper_funcs *helper_funcs) +{ + struct drm_crtc *crtc; + int ret; + + if (!funcs) + funcs = &default_crtc_funcs; + + if (!helper_funcs) + helper_funcs = &default_crtc_helper_funcs; + + crtc = drmm_kzalloc(drm, sizeof(*crtc), GFP_KERNEL); + KUNIT_ASSERT_NOT_NULL(test, crtc); + + ret = drmm_crtc_init_with_planes(drm, crtc, + primary, + cursor, + funcs, + NULL); + KUNIT_ASSERT_EQ(test, ret, 0); + + drm_crtc_helper_add(crtc, helper_funcs); + + return crtc; +} +EXPORT_SYMBOL_GPL(drm_kunit_helper_create_crtc); + +/** + * drm_kunit_helper_enable_crtc_connector - Enables a CRTC -> Connector output + * @test: The test context object + * @drm: The device to alloc the plane for + * @crtc: The CRTC to enable + * @connector: The Connector to enable + * @mode: The display mode to configure the CRTC with + * @ctx: Locking context + * + * This function creates an atomic update to enable the route from @crtc + * to @connector, with the given @mode. + * + * Returns: + * + * A pointer to the new CRTC, or an ERR_PTR() otherwise. If the error + * returned is EDEADLK, the entire atomic sequence must be restarted. + */ +int drm_kunit_helper_enable_crtc_connector(struct kunit *test, + struct drm_device *drm, + struct drm_crtc *crtc, + struct drm_connector *connector, + const struct drm_display_mode *mode, + struct drm_modeset_acquire_ctx *ctx) +{ + struct drm_atomic_state *state; + struct drm_connector_state *conn_state; + struct drm_crtc_state *crtc_state; + int ret; + + state = drm_kunit_helper_atomic_state_alloc(test, drm, ctx); + if (IS_ERR(state)) + return PTR_ERR(state); + + conn_state = drm_atomic_get_connector_state(state, connector); + if (IS_ERR(conn_state)) + return PTR_ERR(conn_state); + + ret = drm_atomic_set_crtc_for_connector(conn_state, crtc); + if (ret) + return ret; + + crtc_state = drm_atomic_get_crtc_state(state, crtc); + if (IS_ERR(crtc_state)) + return PTR_ERR(crtc_state); + + ret = drm_atomic_set_mode_for_crtc(crtc_state, mode); + if (ret) + return ret; + + crtc_state->enable = true; + crtc_state->active = true; + + ret = drm_atomic_commit(state); + if (ret) + return ret; + + return 0; +} +EXPORT_SYMBOL_GPL(drm_kunit_helper_enable_crtc_connector); + +static void kunit_action_drm_mode_destroy(void *ptr) +{ + struct drm_display_mode *mode = ptr; + + drm_mode_destroy(NULL, mode); +} + +/** + * drm_kunit_add_mode_destroy_action() - Add a drm_destroy_mode kunit action + * @test: The test context object + * @mode: The drm_display_mode to destroy eventually + * + * Registers a kunit action that will destroy the drm_display_mode at + * the end of the test. + * + * If an error occurs, the drm_display_mode will be destroyed. + * + * Returns: + * 0 on success, an error code otherwise. + */ +int drm_kunit_add_mode_destroy_action(struct kunit *test, + struct drm_display_mode *mode) +{ + return kunit_add_action_or_reset(test, + kunit_action_drm_mode_destroy, + mode); +} +EXPORT_SYMBOL_GPL(drm_kunit_add_mode_destroy_action); + +/** + * drm_kunit_display_mode_from_cea_vic() - return a mode for CEA VIC for a KUnit test + * @test: The test context object + * @dev: DRM device + * @video_code: CEA VIC of the mode + * + * Creates a new mode matching the specified CEA VIC for a KUnit test. + * + * Resources will be cleaned up automatically. + * + * Returns: A new drm_display_mode on success or NULL on failure + */ +struct drm_display_mode * +drm_kunit_display_mode_from_cea_vic(struct kunit *test, struct drm_device *dev, + u8 video_code) +{ + struct drm_display_mode *mode; + int ret; + + mode = drm_display_mode_from_cea_vic(dev, video_code); + if (!mode) + return NULL; + + ret = kunit_add_action_or_reset(test, + kunit_action_drm_mode_destroy, + mode); + if (ret) + return NULL; + + return mode; +} +EXPORT_SYMBOL_GPL(drm_kunit_display_mode_from_cea_vic); + MODULE_AUTHOR("Maxime Ripard <maxime@cerno.tech>"); +MODULE_DESCRIPTION("KUnit test suite helper functions"); MODULE_LICENSE("GPL"); diff --git a/drivers/gpu/drm/tests/drm_managed_test.c b/drivers/gpu/drm/tests/drm_managed_test.c index 1652dca11d30..d40c7ef7f9e1 100644 --- a/drivers/gpu/drm/tests/drm_managed_test.c +++ b/drivers/gpu/drm/tests/drm_managed_test.c @@ -12,6 +12,7 @@ #define TEST_TIMEOUT_MS 100 struct managed_test_priv { + struct drm_device *drm; bool action_done; wait_queue_head_t action_wq; }; @@ -24,48 +25,93 @@ static void drm_action(struct drm_device *drm, void *ptr) wake_up_interruptible(&priv->action_wq); } -static void drm_test_managed_run_action(struct kunit *test) +/* + * The test verifies that the release action is called when + * drmm_release_action is called. + */ +static void drm_test_managed_release_action(struct kunit *test) { - struct managed_test_priv *priv; - struct drm_device *drm; - struct device *dev; + struct managed_test_priv *priv = test->priv; int ret; - priv = kunit_kzalloc(test, sizeof(*priv), GFP_KERNEL); - KUNIT_ASSERT_NOT_ERR_OR_NULL(test, priv); - init_waitqueue_head(&priv->action_wq); + ret = drmm_add_action_or_reset(priv->drm, drm_action, priv); + KUNIT_EXPECT_EQ(test, ret, 0); - dev = drm_kunit_helper_alloc_device(test); - KUNIT_ASSERT_NOT_ERR_OR_NULL(test, dev); + ret = drm_dev_register(priv->drm, 0); + KUNIT_ASSERT_EQ(test, ret, 0); + + drmm_release_action(priv->drm, drm_action, priv); + ret = wait_event_interruptible_timeout(priv->action_wq, priv->action_done, + msecs_to_jiffies(TEST_TIMEOUT_MS)); + KUNIT_EXPECT_GT(test, ret, 0); + + drm_dev_unregister(priv->drm); + drm_kunit_helper_free_device(test, priv->drm->dev); +} - drm = __drm_kunit_helper_alloc_drm_device(test, dev, sizeof(*drm), 0, DRIVER_MODESET); - KUNIT_ASSERT_NOT_ERR_OR_NULL(test, drm); +/* + * The test verifies that the release action is called automatically when the + * device is released. + */ +static void drm_test_managed_run_action(struct kunit *test) +{ + struct managed_test_priv *priv = test->priv; + int ret; - ret = drmm_add_action_or_reset(drm, drm_action, priv); + ret = drmm_add_action_or_reset(priv->drm, drm_action, priv); KUNIT_EXPECT_EQ(test, ret, 0); - ret = drm_dev_register(drm, 0); + ret = drm_dev_register(priv->drm, 0); KUNIT_ASSERT_EQ(test, ret, 0); - drm_dev_unregister(drm); - drm_kunit_helper_free_device(test, dev); + drm_dev_unregister(priv->drm); + drm_kunit_helper_free_device(test, priv->drm->dev); ret = wait_event_interruptible_timeout(priv->action_wq, priv->action_done, msecs_to_jiffies(TEST_TIMEOUT_MS)); KUNIT_EXPECT_GT(test, ret, 0); } +static int drm_managed_test_init(struct kunit *test) +{ + struct managed_test_priv *priv; + struct device *dev; + + priv = kunit_kzalloc(test, sizeof(*priv), GFP_KERNEL); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, priv); + init_waitqueue_head(&priv->action_wq); + + dev = drm_kunit_helper_alloc_device(test); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, dev); + + /* + * DRM device can't be embedded in priv, since priv->action_done needs + * to remain allocated beyond both parent device and drm_device + * lifetime. + */ + priv->drm = __drm_kunit_helper_alloc_drm_device(test, dev, sizeof(*priv->drm), 0, + DRIVER_MODESET); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, priv->drm); + + test->priv = priv; + + return 0; +} + static struct kunit_case drm_managed_tests[] = { + KUNIT_CASE(drm_test_managed_release_action), KUNIT_CASE(drm_test_managed_run_action), {} }; static struct kunit_suite drm_managed_test_suite = { - .name = "drm-test-managed", + .name = "drm_managed", + .init = drm_managed_test_init, .test_cases = drm_managed_tests }; kunit_test_suite(drm_managed_test_suite); MODULE_AUTHOR("Maxime Ripard <maxime@cerno.tech>"); +MODULE_DESCRIPTION("KUnit DRM managed test suite"); MODULE_LICENSE("GPL"); diff --git a/drivers/gpu/drm/tests/drm_mm_test.c b/drivers/gpu/drm/tests/drm_mm_test.c index 186b28dc7038..aec9eccdeae9 100644 --- a/drivers/gpu/drm/tests/drm_mm_test.c +++ b/drivers/gpu/drm/tests/drm_mm_test.c @@ -14,13 +14,10 @@ #include <linux/ktime.h> #include <drm/drm_mm.h> +#include <drm/drm_print.h> #include "../lib/drm_random.h" -static unsigned int random_seed; -static unsigned int max_iterations = 8192; -static unsigned int max_prime = 128; - enum { BEST, BOTTOMUP, @@ -37,10 +34,6 @@ static const struct insert_mode { [TOPDOWN] = { "top-down", DRM_MM_INSERT_HIGH }, [EVICT] = { "evict", DRM_MM_INSERT_EVICT }, {} -}, evict_modes[] = { - { "bottom-up", DRM_MM_INSERT_LOW }, - { "top-down", DRM_MM_INSERT_HIGH }, - {} }; static bool assert_no_holes(struct kunit *test, const struct drm_mm *mm) @@ -97,57 +90,6 @@ static bool assert_one_hole(struct kunit *test, const struct drm_mm *mm, u64 sta return ok; } -static bool assert_continuous(struct kunit *test, const struct drm_mm *mm, u64 size) -{ - struct drm_mm_node *node, *check, *found; - unsigned long n; - u64 addr; - - if (!assert_no_holes(test, mm)) - return false; - - n = 0; - addr = 0; - drm_mm_for_each_node(node, mm) { - if (node->start != addr) { - KUNIT_FAIL(test, "node[%ld] list out of order, expected %llx found %llx\n", - n, addr, node->start); - return false; - } - - if (node->size != size) { - KUNIT_FAIL(test, "node[%ld].size incorrect, expected %llx, found %llx\n", - n, size, node->size); - return false; - } - - if (drm_mm_hole_follows(node)) { - KUNIT_FAIL(test, "node[%ld] is followed by a hole!\n", n); - return false; - } - - found = NULL; - drm_mm_for_each_node_in_range(check, mm, addr, addr + size) { - if (node != check) { - KUNIT_FAIL(test, - "lookup return wrong node, expected start %llx, found %llx\n", - node->start, check->start); - return false; - } - found = check; - } - if (!found) { - KUNIT_FAIL(test, "lookup failed for node %llx + %llx\n", addr, size); - return false; - } - - addr += size; - n++; - } - - return true; -} - static u64 misalignment(struct drm_mm_node *node, u64 alignment) { u64 rem; @@ -216,7 +158,7 @@ static void drm_test_mm_init(struct kunit *test) /* After creation, it should all be one massive hole */ if (!assert_one_hole(test, &mm, 0, size)) { - KUNIT_FAIL(test, ""); + KUNIT_FAIL(test, "mm not one hole on creation"); goto out; } @@ -230,14 +172,14 @@ static void drm_test_mm_init(struct kunit *test) /* After filling the range entirely, there should be no holes */ if (!assert_no_holes(test, &mm)) { - KUNIT_FAIL(test, ""); + KUNIT_FAIL(test, "mm has holes when filled"); goto out; } /* And then after emptying it again, the massive hole should be back */ drm_mm_remove_node(&tmp); if (!assert_one_hole(test, &mm, 0, size)) { - KUNIT_FAIL(test, ""); + KUNIT_FAIL(test, "mm does not have single hole after emptying"); goto out; } @@ -247,13 +189,13 @@ out: static void drm_test_mm_debug(struct kunit *test) { + struct drm_printer p = drm_dbg_printer(NULL, DRM_UT_CORE, test->name); struct drm_mm mm; struct drm_mm_node nodes[2]; /* Create a small drm_mm with a couple of nodes and a few holes, and * check that the debug iterator doesn't explode over a trivial drm_mm. */ - drm_mm_init(&mm, 0, 4096); memset(nodes, 0, sizeof(nodes)); @@ -268,215 +210,9 @@ static void drm_test_mm_debug(struct kunit *test) KUNIT_ASSERT_FALSE_MSG(test, drm_mm_reserve_node(&mm, &nodes[1]), "failed to reserve node[0] {start=%lld, size=%lld)\n", nodes[0].start, nodes[0].size); -} - -static struct drm_mm_node *set_node(struct drm_mm_node *node, - u64 start, u64 size) -{ - node->start = start; - node->size = size; - return node; -} - -static bool expect_reserve_fail(struct kunit *test, struct drm_mm *mm, struct drm_mm_node *node) -{ - int err; - - err = drm_mm_reserve_node(mm, node); - if (likely(err == -ENOSPC)) - return true; - - if (!err) { - KUNIT_FAIL(test, "impossible reserve succeeded, node %llu + %llu\n", - node->start, node->size); - drm_mm_remove_node(node); - } else { - KUNIT_FAIL(test, - "impossible reserve failed with wrong error %d [expected %d], node %llu + %llu\n", - err, -ENOSPC, node->start, node->size); - } - return false; -} - -static bool noinline_for_stack check_reserve_boundaries(struct kunit *test, struct drm_mm *mm, - unsigned int count, - u64 size) -{ - const struct boundary { - u64 start, size; - const char *name; - } boundaries[] = { -#define B(st, sz) { (st), (sz), "{ " #st ", " #sz "}" } - B(0, 0), - B(-size, 0), - B(size, 0), - B(size * count, 0), - B(-size, size), - B(-size, -size), - B(-size, 2 * size), - B(0, -size), - B(size, -size), - B(count * size, size), - B(count * size, -size), - B(count * size, count * size), - B(count * size, -count * size), - B(count * size, -(count + 1) * size), - B((count + 1) * size, size), - B((count + 1) * size, -size), - B((count + 1) * size, -2 * size), -#undef B - }; - struct drm_mm_node tmp = {}; - int n; - - for (n = 0; n < ARRAY_SIZE(boundaries); n++) { - if (!expect_reserve_fail(test, mm, set_node(&tmp, boundaries[n].start, - boundaries[n].size))) { - KUNIT_FAIL(test, "boundary[%d:%s] failed, count=%u, size=%lld\n", - n, boundaries[n].name, count, size); - return false; - } - } - - return true; -} - -static int __drm_test_mm_reserve(struct kunit *test, unsigned int count, u64 size) -{ - DRM_RND_STATE(prng, random_seed); - struct drm_mm mm; - struct drm_mm_node tmp, *nodes, *node, *next; - unsigned int *order, n, m, o = 0; - int ret, err; - - /* For exercising drm_mm_reserve_node(), we want to check that - * reservations outside of the drm_mm range are rejected, and to - * overlapping and otherwise already occupied ranges. Afterwards, - * the tree and nodes should be intact. - */ - - DRM_MM_BUG_ON(!count); - DRM_MM_BUG_ON(!size); - - ret = -ENOMEM; - order = drm_random_order(count, &prng); - if (!order) - goto err; - - nodes = vzalloc(array_size(count, sizeof(*nodes))); - KUNIT_ASSERT_TRUE(test, nodes); - - ret = -EINVAL; - drm_mm_init(&mm, 0, count * size); - - if (!check_reserve_boundaries(test, &mm, count, size)) - goto out; - - for (n = 0; n < count; n++) { - nodes[n].start = order[n] * size; - nodes[n].size = size; - - err = drm_mm_reserve_node(&mm, &nodes[n]); - if (err) { - KUNIT_FAIL(test, "reserve failed, step %d, start %llu\n", - n, nodes[n].start); - ret = err; - goto out; - } - - if (!drm_mm_node_allocated(&nodes[n])) { - KUNIT_FAIL(test, "reserved node not allocated! step %d, start %llu\n", - n, nodes[n].start); - goto out; - } - - if (!expect_reserve_fail(test, &mm, &nodes[n])) - goto out; - } - - /* After random insertion the nodes should be in order */ - if (!assert_continuous(test, &mm, size)) - goto out; - - /* Repeated use should then fail */ - drm_random_reorder(order, count, &prng); - for (n = 0; n < count; n++) { - if (!expect_reserve_fail(test, &mm, set_node(&tmp, order[n] * size, 1))) - goto out; - - /* Remove and reinsert should work */ - drm_mm_remove_node(&nodes[order[n]]); - err = drm_mm_reserve_node(&mm, &nodes[order[n]]); - if (err) { - KUNIT_FAIL(test, "reserve failed, step %d, start %llu\n", - n, nodes[n].start); - ret = err; - goto out; - } - } - - if (!assert_continuous(test, &mm, size)) - goto out; - - /* Overlapping use should then fail */ - for (n = 0; n < count; n++) { - if (!expect_reserve_fail(test, &mm, set_node(&tmp, 0, size * count))) - goto out; - } - for (n = 0; n < count; n++) { - if (!expect_reserve_fail(test, &mm, set_node(&tmp, size * n, size * (count - n)))) - goto out; - } - - /* Remove several, reinsert, check full */ - for_each_prime_number(n, min(max_prime, count)) { - for (m = 0; m < n; m++) { - node = &nodes[order[(o + m) % count]]; - drm_mm_remove_node(node); - } - - for (m = 0; m < n; m++) { - node = &nodes[order[(o + m) % count]]; - err = drm_mm_reserve_node(&mm, node); - if (err) { - KUNIT_FAIL(test, "reserve failed, step %d/%d, start %llu\n", - m, n, node->start); - ret = err; - goto out; - } - } - - o += n; - - if (!assert_continuous(test, &mm, size)) - goto out; - } - - ret = 0; -out: - drm_mm_for_each_node_safe(node, next, &mm) - drm_mm_remove_node(node); - drm_mm_takedown(&mm); - vfree(nodes); - kfree(order); -err: - return ret; -} -static void drm_test_mm_reserve(struct kunit *test) -{ - const unsigned int count = min_t(unsigned int, BIT(10), max_iterations); - int n; - - for_each_prime_number_from(n, 1, 54) { - u64 size = BIT_ULL(n); - - KUNIT_ASSERT_FALSE(test, __drm_test_mm_reserve(test, count, size - 1)); - KUNIT_ASSERT_FALSE(test, __drm_test_mm_reserve(test, count, size)); - KUNIT_ASSERT_FALSE(test, __drm_test_mm_reserve(test, count, size + 1)); - - cond_resched(); - } + drm_mm_print(&mm, &p); + KUNIT_SUCCEED(test); } static bool expect_insert(struct kunit *test, struct drm_mm *mm, @@ -503,600 +239,6 @@ static bool expect_insert(struct kunit *test, struct drm_mm *mm, return true; } -static bool expect_insert_fail(struct kunit *test, struct drm_mm *mm, u64 size) -{ - struct drm_mm_node tmp = {}; - int err; - - err = drm_mm_insert_node(mm, &tmp, size); - if (likely(err == -ENOSPC)) - return true; - - if (!err) { - KUNIT_FAIL(test, "impossible insert succeeded, node %llu + %llu\n", - tmp.start, tmp.size); - drm_mm_remove_node(&tmp); - } else { - KUNIT_FAIL(test, - "impossible insert failed with wrong error %d [expected %d], size %llu\n", - err, -ENOSPC, size); - } - return false; -} - -static int __drm_test_mm_insert(struct kunit *test, unsigned int count, u64 size, bool replace) -{ - DRM_RND_STATE(prng, random_seed); - const struct insert_mode *mode; - struct drm_mm mm; - struct drm_mm_node *nodes, *node, *next; - unsigned int *order, n, m, o = 0; - int ret; - - /* Fill a range with lots of nodes, check it doesn't fail too early */ - - DRM_MM_BUG_ON(!count); - DRM_MM_BUG_ON(!size); - - ret = -ENOMEM; - nodes = vmalloc(array_size(count, sizeof(*nodes))); - KUNIT_ASSERT_TRUE(test, nodes); - - order = drm_random_order(count, &prng); - if (!order) - goto err_nodes; - - ret = -EINVAL; - drm_mm_init(&mm, 0, count * size); - - for (mode = insert_modes; mode->name; mode++) { - for (n = 0; n < count; n++) { - struct drm_mm_node tmp; - - node = replace ? &tmp : &nodes[n]; - memset(node, 0, sizeof(*node)); - if (!expect_insert(test, &mm, node, size, 0, n, mode)) { - KUNIT_FAIL(test, "%s insert failed, size %llu step %d\n", - mode->name, size, n); - goto out; - } - - if (replace) { - drm_mm_replace_node(&tmp, &nodes[n]); - if (drm_mm_node_allocated(&tmp)) { - KUNIT_FAIL(test, - "replaced old-node still allocated! step %d\n", - n); - goto out; - } - - if (!assert_node(test, &nodes[n], &mm, size, 0, n)) { - KUNIT_FAIL(test, - "replaced node did not inherit parameters, size %llu step %d\n", - size, n); - goto out; - } - - if (tmp.start != nodes[n].start) { - KUNIT_FAIL(test, - "replaced node mismatch location expected [%llx + %llx], found [%llx + %llx]\n", - tmp.start, size, nodes[n].start, nodes[n].size); - goto out; - } - } - } - - /* After random insertion the nodes should be in order */ - if (!assert_continuous(test, &mm, size)) - goto out; - - /* Repeated use should then fail */ - if (!expect_insert_fail(test, &mm, size)) - goto out; - - /* Remove one and reinsert, as the only hole it should refill itself */ - for (n = 0; n < count; n++) { - u64 addr = nodes[n].start; - - drm_mm_remove_node(&nodes[n]); - if (!expect_insert(test, &mm, &nodes[n], size, 0, n, mode)) { - KUNIT_FAIL(test, "%s reinsert failed, size %llu step %d\n", - mode->name, size, n); - goto out; - } - - if (nodes[n].start != addr) { - KUNIT_FAIL(test, - "%s reinsert node moved, step %d, expected %llx, found %llx\n", - mode->name, n, addr, nodes[n].start); - goto out; - } - - if (!assert_continuous(test, &mm, size)) - goto out; - } - - /* Remove several, reinsert, check full */ - for_each_prime_number(n, min(max_prime, count)) { - for (m = 0; m < n; m++) { - node = &nodes[order[(o + m) % count]]; - drm_mm_remove_node(node); - } - - for (m = 0; m < n; m++) { - node = &nodes[order[(o + m) % count]]; - if (!expect_insert(test, &mm, node, size, 0, n, mode)) { - KUNIT_FAIL(test, - "%s multiple reinsert failed, size %llu step %d\n", - mode->name, size, n); - goto out; - } - } - - o += n; - - if (!assert_continuous(test, &mm, size)) - goto out; - - if (!expect_insert_fail(test, &mm, size)) - goto out; - } - - drm_mm_for_each_node_safe(node, next, &mm) - drm_mm_remove_node(node); - DRM_MM_BUG_ON(!drm_mm_clean(&mm)); - - cond_resched(); - } - - ret = 0; -out: - drm_mm_for_each_node_safe(node, next, &mm) - drm_mm_remove_node(node); - drm_mm_takedown(&mm); - kfree(order); -err_nodes: - vfree(nodes); - return ret; -} - -static void drm_test_mm_insert(struct kunit *test) -{ - const unsigned int count = min_t(unsigned int, BIT(10), max_iterations); - unsigned int n; - - for_each_prime_number_from(n, 1, 54) { - u64 size = BIT_ULL(n); - - KUNIT_ASSERT_FALSE(test, __drm_test_mm_insert(test, count, size - 1, false)); - KUNIT_ASSERT_FALSE(test, __drm_test_mm_insert(test, count, size, false)); - KUNIT_ASSERT_FALSE(test, __drm_test_mm_insert(test, count, size + 1, false)); - - cond_resched(); - } -} - -static void drm_test_mm_replace(struct kunit *test) -{ - const unsigned int count = min_t(unsigned int, BIT(10), max_iterations); - unsigned int n; - - /* Reuse __drm_test_mm_insert to exercise replacement by inserting a dummy node, - * then replacing it with the intended node. We want to check that - * the tree is intact and all the information we need is carried - * across to the target node. - */ - - for_each_prime_number_from(n, 1, 54) { - u64 size = BIT_ULL(n); - - KUNIT_ASSERT_FALSE(test, __drm_test_mm_insert(test, count, size - 1, true)); - KUNIT_ASSERT_FALSE(test, __drm_test_mm_insert(test, count, size, true)); - KUNIT_ASSERT_FALSE(test, __drm_test_mm_insert(test, count, size + 1, true)); - - cond_resched(); - } -} - -static bool expect_insert_in_range(struct kunit *test, struct drm_mm *mm, struct drm_mm_node *node, - u64 size, u64 alignment, unsigned long color, - u64 range_start, u64 range_end, const struct insert_mode *mode) -{ - int err; - - err = drm_mm_insert_node_in_range(mm, node, - size, alignment, color, - range_start, range_end, - mode->mode); - if (err) { - KUNIT_FAIL(test, - "insert (size=%llu, alignment=%llu, color=%lu, mode=%s) nto range [%llx, %llx] failed with err=%d\n", - size, alignment, color, mode->name, - range_start, range_end, err); - return false; - } - - if (!assert_node(test, node, mm, size, alignment, color)) { - drm_mm_remove_node(node); - return false; - } - - return true; -} - -static bool expect_insert_in_range_fail(struct kunit *test, struct drm_mm *mm, - u64 size, u64 range_start, u64 range_end) -{ - struct drm_mm_node tmp = {}; - int err; - - err = drm_mm_insert_node_in_range(mm, &tmp, size, 0, 0, range_start, range_end, - 0); - if (likely(err == -ENOSPC)) - return true; - - if (!err) { - KUNIT_FAIL(test, - "impossible insert succeeded, node %llx + %llu, range [%llx, %llx]\n", - tmp.start, tmp.size, range_start, range_end); - drm_mm_remove_node(&tmp); - } else { - KUNIT_FAIL(test, - "impossible insert failed with wrong error %d [expected %d], size %llu, range [%llx, %llx]\n", - err, -ENOSPC, size, range_start, range_end); - } - - return false; -} - -static bool assert_contiguous_in_range(struct kunit *test, struct drm_mm *mm, - u64 size, u64 start, u64 end) -{ - struct drm_mm_node *node; - unsigned int n; - - if (!expect_insert_in_range_fail(test, mm, size, start, end)) - return false; - - n = div64_u64(start + size - 1, size); - drm_mm_for_each_node(node, mm) { - if (node->start < start || node->start + node->size > end) { - KUNIT_FAIL(test, - "node %d out of range, address [%llx + %llu], range [%llx, %llx]\n", - n, node->start, node->start + node->size, start, end); - return false; - } - - if (node->start != n * size) { - KUNIT_FAIL(test, "node %d out of order, expected start %llx, found %llx\n", - n, n * size, node->start); - return false; - } - - if (node->size != size) { - KUNIT_FAIL(test, "node %d has wrong size, expected size %llx, found %llx\n", - n, size, node->size); - return false; - } - - if (drm_mm_hole_follows(node) && drm_mm_hole_node_end(node) < end) { - KUNIT_FAIL(test, "node %d is followed by a hole!\n", n); - return false; - } - - n++; - } - - if (start > 0) { - node = __drm_mm_interval_first(mm, 0, start - 1); - if (drm_mm_node_allocated(node)) { - KUNIT_FAIL(test, "node before start: node=%llx+%llu, start=%llx\n", - node->start, node->size, start); - return false; - } - } - - if (end < U64_MAX) { - node = __drm_mm_interval_first(mm, end, U64_MAX); - if (drm_mm_node_allocated(node)) { - KUNIT_FAIL(test, "node after end: node=%llx+%llu, end=%llx\n", - node->start, node->size, end); - return false; - } - } - - return true; -} - -static int __drm_test_mm_insert_range(struct kunit *test, unsigned int count, u64 size, - u64 start, u64 end) -{ - const struct insert_mode *mode; - struct drm_mm mm; - struct drm_mm_node *nodes, *node, *next; - unsigned int n, start_n, end_n; - int ret; - - DRM_MM_BUG_ON(!count); - DRM_MM_BUG_ON(!size); - DRM_MM_BUG_ON(end <= start); - - /* Very similar to __drm_test_mm_insert(), but now instead of populating the - * full range of the drm_mm, we try to fill a small portion of it. - */ - - ret = -ENOMEM; - nodes = vzalloc(array_size(count, sizeof(*nodes))); - KUNIT_ASSERT_TRUE(test, nodes); - - ret = -EINVAL; - drm_mm_init(&mm, 0, count * size); - - start_n = div64_u64(start + size - 1, size); - end_n = div64_u64(end - size, size); - - for (mode = insert_modes; mode->name; mode++) { - for (n = start_n; n <= end_n; n++) { - if (!expect_insert_in_range(test, &mm, &nodes[n], size, size, n, - start, end, mode)) { - KUNIT_FAIL(test, - "%s insert failed, size %llu, step %d [%d, %d], range [%llx, %llx]\n", - mode->name, size, n, start_n, end_n, start, end); - goto out; - } - } - - if (!assert_contiguous_in_range(test, &mm, size, start, end)) { - KUNIT_FAIL(test, - "%s: range [%llx, %llx] not full after initialisation, size=%llu\n", - mode->name, start, end, size); - goto out; - } - - /* Remove one and reinsert, it should refill itself */ - for (n = start_n; n <= end_n; n++) { - u64 addr = nodes[n].start; - - drm_mm_remove_node(&nodes[n]); - if (!expect_insert_in_range(test, &mm, &nodes[n], size, size, n, - start, end, mode)) { - KUNIT_FAIL(test, "%s reinsert failed, step %d\n", mode->name, n); - goto out; - } - - if (nodes[n].start != addr) { - KUNIT_FAIL(test, - "%s reinsert node moved, step %d, expected %llx, found %llx\n", - mode->name, n, addr, nodes[n].start); - goto out; - } - } - - if (!assert_contiguous_in_range(test, &mm, size, start, end)) { - KUNIT_FAIL(test, - "%s: range [%llx, %llx] not full after reinsertion, size=%llu\n", - mode->name, start, end, size); - goto out; - } - - drm_mm_for_each_node_safe(node, next, &mm) - drm_mm_remove_node(node); - DRM_MM_BUG_ON(!drm_mm_clean(&mm)); - - cond_resched(); - } - - ret = 0; -out: - drm_mm_for_each_node_safe(node, next, &mm) - drm_mm_remove_node(node); - drm_mm_takedown(&mm); - vfree(nodes); - return ret; -} - -static int insert_outside_range(struct kunit *test) -{ - struct drm_mm mm; - const unsigned int start = 1024; - const unsigned int end = 2048; - const unsigned int size = end - start; - - drm_mm_init(&mm, start, size); - - if (!expect_insert_in_range_fail(test, &mm, 1, 0, start)) - return -EINVAL; - - if (!expect_insert_in_range_fail(test, &mm, size, - start - size / 2, start + (size + 1) / 2)) - return -EINVAL; - - if (!expect_insert_in_range_fail(test, &mm, size, - end - (size + 1) / 2, end + size / 2)) - return -EINVAL; - - if (!expect_insert_in_range_fail(test, &mm, 1, end, end + size)) - return -EINVAL; - - drm_mm_takedown(&mm); - return 0; -} - -static void drm_test_mm_insert_range(struct kunit *test) -{ - const unsigned int count = min_t(unsigned int, BIT(13), max_iterations); - unsigned int n; - - /* Check that requests outside the bounds of drm_mm are rejected. */ - KUNIT_ASSERT_FALSE(test, insert_outside_range(test)); - - for_each_prime_number_from(n, 1, 50) { - const u64 size = BIT_ULL(n); - const u64 max = count * size; - - KUNIT_ASSERT_FALSE(test, __drm_test_mm_insert_range(test, count, size, 0, max)); - KUNIT_ASSERT_FALSE(test, __drm_test_mm_insert_range(test, count, size, 1, max)); - KUNIT_ASSERT_FALSE(test, __drm_test_mm_insert_range(test, count, size, 0, max - 1)); - KUNIT_ASSERT_FALSE(test, __drm_test_mm_insert_range(test, count, size, 0, max / 2)); - KUNIT_ASSERT_FALSE(test, __drm_test_mm_insert_range(test, count, size, - max / 2, max / 2)); - KUNIT_ASSERT_FALSE(test, __drm_test_mm_insert_range(test, count, size, - max / 4 + 1, 3 * max / 4 - 1)); - - cond_resched(); - } -} - -static int prepare_frag(struct kunit *test, struct drm_mm *mm, struct drm_mm_node *nodes, - unsigned int num_insert, const struct insert_mode *mode) -{ - unsigned int size = 4096; - unsigned int i; - - for (i = 0; i < num_insert; i++) { - if (!expect_insert(test, mm, &nodes[i], size, 0, i, mode) != 0) { - KUNIT_FAIL(test, "%s insert failed\n", mode->name); - return -EINVAL; - } - } - - /* introduce fragmentation by freeing every other node */ - for (i = 0; i < num_insert; i++) { - if (i % 2 == 0) - drm_mm_remove_node(&nodes[i]); - } - - return 0; -} - -static u64 get_insert_time(struct kunit *test, struct drm_mm *mm, - unsigned int num_insert, struct drm_mm_node *nodes, - const struct insert_mode *mode) -{ - unsigned int size = 8192; - ktime_t start; - unsigned int i; - - start = ktime_get(); - for (i = 0; i < num_insert; i++) { - if (!expect_insert(test, mm, &nodes[i], size, 0, i, mode) != 0) { - KUNIT_FAIL(test, "%s insert failed\n", mode->name); - return 0; - } - } - - return ktime_to_ns(ktime_sub(ktime_get(), start)); -} - -static void drm_test_mm_frag(struct kunit *test) -{ - struct drm_mm mm; - const struct insert_mode *mode; - struct drm_mm_node *nodes, *node, *next; - unsigned int insert_size = 10000; - unsigned int scale_factor = 4; - - /* We need 4 * insert_size nodes to hold intermediate allocated - * drm_mm nodes. - * 1 times for prepare_frag() - * 1 times for get_insert_time() - * 2 times for get_insert_time() - */ - nodes = vzalloc(array_size(insert_size * 4, sizeof(*nodes))); - KUNIT_ASSERT_TRUE(test, nodes); - - /* For BOTTOMUP and TOPDOWN, we first fragment the - * address space using prepare_frag() and then try to verify - * that insertions scale quadratically from 10k to 20k insertions - */ - drm_mm_init(&mm, 1, U64_MAX - 2); - for (mode = insert_modes; mode->name; mode++) { - u64 insert_time1, insert_time2; - - if (mode->mode != DRM_MM_INSERT_LOW && - mode->mode != DRM_MM_INSERT_HIGH) - continue; - - if (prepare_frag(test, &mm, nodes, insert_size, mode)) - goto err; - - insert_time1 = get_insert_time(test, &mm, insert_size, - nodes + insert_size, mode); - if (insert_time1 == 0) - goto err; - - insert_time2 = get_insert_time(test, &mm, (insert_size * 2), - nodes + insert_size * 2, mode); - if (insert_time2 == 0) - goto err; - - kunit_info(test, "%s fragmented insert of %u and %u insertions took %llu and %llu nsecs\n", - mode->name, insert_size, insert_size * 2, insert_time1, insert_time2); - - if (insert_time2 > (scale_factor * insert_time1)) { - KUNIT_FAIL(test, "%s fragmented insert took %llu nsecs more\n", - mode->name, insert_time2 - (scale_factor * insert_time1)); - goto err; - } - - drm_mm_for_each_node_safe(node, next, &mm) - drm_mm_remove_node(node); - } - -err: - drm_mm_for_each_node_safe(node, next, &mm) - drm_mm_remove_node(node); - drm_mm_takedown(&mm); - vfree(nodes); -} - -static void drm_test_mm_align(struct kunit *test) -{ - const struct insert_mode *mode; - const unsigned int max_count = min(8192u, max_prime); - struct drm_mm mm; - struct drm_mm_node *nodes, *node, *next; - unsigned int prime; - - /* For each of the possible insertion modes, we pick a few - * arbitrary alignments and check that the inserted node - * meets our requirements. - */ - - nodes = vzalloc(array_size(max_count, sizeof(*nodes))); - KUNIT_ASSERT_TRUE(test, nodes); - - drm_mm_init(&mm, 1, U64_MAX - 2); - - for (mode = insert_modes; mode->name; mode++) { - unsigned int i = 0; - - for_each_prime_number_from(prime, 1, max_count) { - u64 size = next_prime_number(prime); - - if (!expect_insert(test, &mm, &nodes[i], size, prime, i, mode)) { - KUNIT_FAIL(test, "%s insert failed with alignment=%d", - mode->name, prime); - goto out; - } - - i++; - } - - drm_mm_for_each_node_safe(node, next, &mm) - drm_mm_remove_node(node); - DRM_MM_BUG_ON(!drm_mm_clean(&mm)); - - cond_resched(); - } - -out: - drm_mm_for_each_node_safe(node, next, &mm) - drm_mm_remove_node(node); - drm_mm_takedown(&mm); - vfree(nodes); -} - static void drm_test_mm_align_pot(struct kunit *test, int max) { struct drm_mm mm; @@ -1144,626 +286,6 @@ static void drm_test_mm_align64(struct kunit *test) drm_test_mm_align_pot(test, 64); } -static void show_scan(struct kunit *test, const struct drm_mm_scan *scan) -{ - kunit_info(test, "scan: hit [%llx, %llx], size=%lld, align=%lld, color=%ld\n", - scan->hit_start, scan->hit_end, scan->size, scan->alignment, scan->color); -} - -static void show_holes(struct kunit *test, const struct drm_mm *mm, int count) -{ - u64 hole_start, hole_end; - struct drm_mm_node *hole; - - drm_mm_for_each_hole(hole, mm, hole_start, hole_end) { - struct drm_mm_node *next = list_next_entry(hole, node_list); - const char *node1 = NULL, *node2 = NULL; - - if (drm_mm_node_allocated(hole)) - node1 = kasprintf(GFP_KERNEL, "[%llx + %lld, color=%ld], ", - hole->start, hole->size, hole->color); - - if (drm_mm_node_allocated(next)) - node2 = kasprintf(GFP_KERNEL, ", [%llx + %lld, color=%ld]", - next->start, next->size, next->color); - - kunit_info(test, "%sHole [%llx - %llx, size %lld]%s\n", node1, - hole_start, hole_end, hole_end - hole_start, node2); - - kfree(node2); - kfree(node1); - - if (!--count) - break; - } -} - -struct evict_node { - struct drm_mm_node node; - struct list_head link; -}; - -static bool evict_nodes(struct kunit *test, struct drm_mm_scan *scan, - struct evict_node *nodes, unsigned int *order, unsigned int count, - bool use_color, struct list_head *evict_list) -{ - struct evict_node *e, *en; - unsigned int i; - - for (i = 0; i < count; i++) { - e = &nodes[order ? order[i] : i]; - list_add(&e->link, evict_list); - if (drm_mm_scan_add_block(scan, &e->node)) - break; - } - list_for_each_entry_safe(e, en, evict_list, link) { - if (!drm_mm_scan_remove_block(scan, &e->node)) - list_del(&e->link); - } - if (list_empty(evict_list)) { - KUNIT_FAIL(test, - "Failed to find eviction: size=%lld [avail=%d], align=%lld (color=%lu)\n", - scan->size, count, scan->alignment, scan->color); - return false; - } - - list_for_each_entry(e, evict_list, link) - drm_mm_remove_node(&e->node); - - if (use_color) { - struct drm_mm_node *node; - - while ((node = drm_mm_scan_color_evict(scan))) { - e = container_of(node, typeof(*e), node); - drm_mm_remove_node(&e->node); - list_add(&e->link, evict_list); - } - } else { - if (drm_mm_scan_color_evict(scan)) { - KUNIT_FAIL(test, - "drm_mm_scan_color_evict unexpectedly reported overlapping nodes!\n"); - return false; - } - } - - return true; -} - -static bool evict_nothing(struct kunit *test, struct drm_mm *mm, - unsigned int total_size, struct evict_node *nodes) -{ - struct drm_mm_scan scan; - LIST_HEAD(evict_list); - struct evict_node *e; - struct drm_mm_node *node; - unsigned int n; - - drm_mm_scan_init(&scan, mm, 1, 0, 0, 0); - for (n = 0; n < total_size; n++) { - e = &nodes[n]; - list_add(&e->link, &evict_list); - drm_mm_scan_add_block(&scan, &e->node); - } - list_for_each_entry(e, &evict_list, link) - drm_mm_scan_remove_block(&scan, &e->node); - - for (n = 0; n < total_size; n++) { - e = &nodes[n]; - - if (!drm_mm_node_allocated(&e->node)) { - KUNIT_FAIL(test, "node[%d] no longer allocated!\n", n); - return false; - } - - e->link.next = NULL; - } - - drm_mm_for_each_node(node, mm) { - e = container_of(node, typeof(*e), node); - e->link.next = &e->link; - } - - for (n = 0; n < total_size; n++) { - e = &nodes[n]; - - if (!e->link.next) { - KUNIT_FAIL(test, "node[%d] no longer connected!\n", n); - return false; - } - } - - return assert_continuous(test, mm, nodes[0].node.size); -} - -static bool evict_everything(struct kunit *test, struct drm_mm *mm, - unsigned int total_size, struct evict_node *nodes) -{ - struct drm_mm_scan scan; - LIST_HEAD(evict_list); - struct evict_node *e; - unsigned int n; - int err; - - drm_mm_scan_init(&scan, mm, total_size, 0, 0, 0); - for (n = 0; n < total_size; n++) { - e = &nodes[n]; - list_add(&e->link, &evict_list); - if (drm_mm_scan_add_block(&scan, &e->node)) - break; - } - - err = 0; - list_for_each_entry(e, &evict_list, link) { - if (!drm_mm_scan_remove_block(&scan, &e->node)) { - if (!err) { - KUNIT_FAIL(test, "Node %lld not marked for eviction!\n", - e->node.start); - err = -EINVAL; - } - } - } - if (err) - return false; - - list_for_each_entry(e, &evict_list, link) - drm_mm_remove_node(&e->node); - - if (!assert_one_hole(test, mm, 0, total_size)) - return false; - - list_for_each_entry(e, &evict_list, link) { - err = drm_mm_reserve_node(mm, &e->node); - if (err) { - KUNIT_FAIL(test, "Failed to reinsert node after eviction: start=%llx\n", - e->node.start); - return false; - } - } - - return assert_continuous(test, mm, nodes[0].node.size); -} - -static int evict_something(struct kunit *test, struct drm_mm *mm, - u64 range_start, u64 range_end, struct evict_node *nodes, - unsigned int *order, unsigned int count, unsigned int size, - unsigned int alignment, const struct insert_mode *mode) -{ - struct drm_mm_scan scan; - LIST_HEAD(evict_list); - struct evict_node *e; - struct drm_mm_node tmp; - int err; - - drm_mm_scan_init_with_range(&scan, mm, size, alignment, 0, range_start, - range_end, mode->mode); - if (!evict_nodes(test, &scan, nodes, order, count, false, &evict_list)) - return -EINVAL; - - memset(&tmp, 0, sizeof(tmp)); - err = drm_mm_insert_node_generic(mm, &tmp, size, alignment, 0, - DRM_MM_INSERT_EVICT); - if (err) { - KUNIT_FAIL(test, "Failed to insert into eviction hole: size=%d, align=%d\n", - size, alignment); - show_scan(test, &scan); - show_holes(test, mm, 3); - return err; - } - - if (tmp.start < range_start || tmp.start + tmp.size > range_end) { - KUNIT_FAIL(test, - "Inserted [address=%llu + %llu] did not fit into the request range [%llu, %llu]\n", - tmp.start, tmp.size, range_start, range_end); - err = -EINVAL; - } - - if (!assert_node(test, &tmp, mm, size, alignment, 0) || - drm_mm_hole_follows(&tmp)) { - KUNIT_FAIL(test, - "Inserted did not fill the eviction hole: size=%lld [%d], align=%d [rem=%lld], start=%llx, hole-follows?=%d\n", - tmp.size, size, alignment, misalignment(&tmp, alignment), - tmp.start, drm_mm_hole_follows(&tmp)); - err = -EINVAL; - } - - drm_mm_remove_node(&tmp); - if (err) - return err; - - list_for_each_entry(e, &evict_list, link) { - err = drm_mm_reserve_node(mm, &e->node); - if (err) { - KUNIT_FAIL(test, "Failed to reinsert node after eviction: start=%llx\n", - e->node.start); - return err; - } - } - - if (!assert_continuous(test, mm, nodes[0].node.size)) { - KUNIT_FAIL(test, "range is no longer continuous\n"); - return -EINVAL; - } - - return 0; -} - -static void drm_test_mm_evict(struct kunit *test) -{ - DRM_RND_STATE(prng, random_seed); - const unsigned int size = 8192; - const struct insert_mode *mode; - struct drm_mm mm; - struct evict_node *nodes; - struct drm_mm_node *node, *next; - unsigned int *order, n; - - /* Here we populate a full drm_mm and then try and insert a new node - * by evicting other nodes in a random order. The drm_mm_scan should - * pick the first matching hole it finds from the random list. We - * repeat that for different allocation strategies, alignments and - * sizes to try and stress the hole finder. - */ - - nodes = vzalloc(array_size(size, sizeof(*nodes))); - KUNIT_ASSERT_TRUE(test, nodes); - - order = drm_random_order(size, &prng); - if (!order) - goto err_nodes; - - drm_mm_init(&mm, 0, size); - for (n = 0; n < size; n++) { - if (drm_mm_insert_node(&mm, &nodes[n].node, 1)) { - KUNIT_FAIL(test, "insert failed, step %d\n", n); - goto out; - } - } - - /* First check that using the scanner doesn't break the mm */ - if (!evict_nothing(test, &mm, size, nodes)) { - KUNIT_FAIL(test, "evict_nothing() failed\n"); - goto out; - } - if (!evict_everything(test, &mm, size, nodes)) { - KUNIT_FAIL(test, "evict_everything() failed\n"); - goto out; - } - - for (mode = evict_modes; mode->name; mode++) { - for (n = 1; n <= size; n <<= 1) { - drm_random_reorder(order, size, &prng); - if (evict_something(test, &mm, 0, U64_MAX, nodes, order, size, n, 1, - mode)) { - KUNIT_FAIL(test, "%s evict_something(size=%u) failed\n", - mode->name, n); - goto out; - } - } - - for (n = 1; n < size; n <<= 1) { - drm_random_reorder(order, size, &prng); - if (evict_something(test, &mm, 0, U64_MAX, nodes, order, size, - size / 2, n, mode)) { - KUNIT_FAIL(test, - "%s evict_something(size=%u, alignment=%u) failed\n", - mode->name, size / 2, n); - goto out; - } - } - - for_each_prime_number_from(n, 1, min(size, max_prime)) { - unsigned int nsize = (size - n + 1) / 2; - - DRM_MM_BUG_ON(!nsize); - - drm_random_reorder(order, size, &prng); - if (evict_something(test, &mm, 0, U64_MAX, nodes, order, size, - nsize, n, mode)) { - KUNIT_FAIL(test, - "%s evict_something(size=%u, alignment=%u) failed\n", - mode->name, nsize, n); - goto out; - } - } - - cond_resched(); - } - -out: - drm_mm_for_each_node_safe(node, next, &mm) - drm_mm_remove_node(node); - drm_mm_takedown(&mm); - kfree(order); -err_nodes: - vfree(nodes); -} - -static void drm_test_mm_evict_range(struct kunit *test) -{ - DRM_RND_STATE(prng, random_seed); - const unsigned int size = 8192; - const unsigned int range_size = size / 2; - const unsigned int range_start = size / 4; - const unsigned int range_end = range_start + range_size; - const struct insert_mode *mode; - struct drm_mm mm; - struct evict_node *nodes; - struct drm_mm_node *node, *next; - unsigned int *order, n; - - /* Like drm_test_mm_evict() but now we are limiting the search to a - * small portion of the full drm_mm. - */ - - nodes = vzalloc(array_size(size, sizeof(*nodes))); - KUNIT_ASSERT_TRUE(test, nodes); - - order = drm_random_order(size, &prng); - if (!order) - goto err_nodes; - - drm_mm_init(&mm, 0, size); - for (n = 0; n < size; n++) { - if (drm_mm_insert_node(&mm, &nodes[n].node, 1)) { - KUNIT_FAIL(test, "insert failed, step %d\n", n); - goto out; - } - } - - for (mode = evict_modes; mode->name; mode++) { - for (n = 1; n <= range_size; n <<= 1) { - drm_random_reorder(order, size, &prng); - if (evict_something(test, &mm, range_start, range_end, nodes, - order, size, n, 1, mode)) { - KUNIT_FAIL(test, - "%s evict_something(size=%u) failed with range [%u, %u]\n", - mode->name, n, range_start, range_end); - goto out; - } - } - - for (n = 1; n <= range_size; n <<= 1) { - drm_random_reorder(order, size, &prng); - if (evict_something(test, &mm, range_start, range_end, nodes, - order, size, range_size / 2, n, mode)) { - KUNIT_FAIL(test, - "%s evict_something(size=%u, alignment=%u) failed with range [%u, %u]\n", - mode->name, range_size / 2, n, range_start, range_end); - goto out; - } - } - - for_each_prime_number_from(n, 1, min(range_size, max_prime)) { - unsigned int nsize = (range_size - n + 1) / 2; - - DRM_MM_BUG_ON(!nsize); - - drm_random_reorder(order, size, &prng); - if (evict_something(test, &mm, range_start, range_end, nodes, - order, size, nsize, n, mode)) { - KUNIT_FAIL(test, - "%s evict_something(size=%u, alignment=%u) failed with range [%u, %u]\n", - mode->name, nsize, n, range_start, range_end); - goto out; - } - } - - cond_resched(); - } - -out: - drm_mm_for_each_node_safe(node, next, &mm) - drm_mm_remove_node(node); - drm_mm_takedown(&mm); - kfree(order); -err_nodes: - vfree(nodes); -} - -static unsigned int node_index(const struct drm_mm_node *node) -{ - return div64_u64(node->start, node->size); -} - -static void drm_test_mm_topdown(struct kunit *test) -{ - const struct insert_mode *topdown = &insert_modes[TOPDOWN]; - - DRM_RND_STATE(prng, random_seed); - const unsigned int count = 8192; - unsigned int size; - unsigned long *bitmap; - struct drm_mm mm; - struct drm_mm_node *nodes, *node, *next; - unsigned int *order, n, m, o = 0; - - /* When allocating top-down, we expect to be returned a node - * from a suitable hole at the top of the drm_mm. We check that - * the returned node does match the highest available slot. - */ - - nodes = vzalloc(array_size(count, sizeof(*nodes))); - KUNIT_ASSERT_TRUE(test, nodes); - - bitmap = bitmap_zalloc(count, GFP_KERNEL); - if (!bitmap) - goto err_nodes; - - order = drm_random_order(count, &prng); - if (!order) - goto err_bitmap; - - for (size = 1; size <= 64; size <<= 1) { - drm_mm_init(&mm, 0, size * count); - for (n = 0; n < count; n++) { - if (!expect_insert(test, &mm, &nodes[n], size, 0, n, topdown)) { - KUNIT_FAIL(test, "insert failed, size %u step %d\n", size, n); - goto out; - } - - if (drm_mm_hole_follows(&nodes[n])) { - KUNIT_FAIL(test, - "hole after topdown insert %d, start=%llx\n, size=%u", - n, nodes[n].start, size); - goto out; - } - - if (!assert_one_hole(test, &mm, 0, size * (count - n - 1))) - goto out; - } - - if (!assert_continuous(test, &mm, size)) - goto out; - - drm_random_reorder(order, count, &prng); - for_each_prime_number_from(n, 1, min(count, max_prime)) { - for (m = 0; m < n; m++) { - node = &nodes[order[(o + m) % count]]; - drm_mm_remove_node(node); - __set_bit(node_index(node), bitmap); - } - - for (m = 0; m < n; m++) { - unsigned int last; - - node = &nodes[order[(o + m) % count]]; - if (!expect_insert(test, &mm, node, size, 0, 0, topdown)) { - KUNIT_FAIL(test, "insert failed, step %d/%d\n", m, n); - goto out; - } - - if (drm_mm_hole_follows(node)) { - KUNIT_FAIL(test, - "hole after topdown insert %d/%d, start=%llx\n", - m, n, node->start); - goto out; - } - - last = find_last_bit(bitmap, count); - if (node_index(node) != last) { - KUNIT_FAIL(test, - "node %d/%d, size %d, not inserted into upmost hole, expected %d, found %d\n", - m, n, size, last, node_index(node)); - goto out; - } - - __clear_bit(last, bitmap); - } - - DRM_MM_BUG_ON(find_first_bit(bitmap, count) != count); - - o += n; - } - - drm_mm_for_each_node_safe(node, next, &mm) - drm_mm_remove_node(node); - DRM_MM_BUG_ON(!drm_mm_clean(&mm)); - cond_resched(); - } - -out: - drm_mm_for_each_node_safe(node, next, &mm) - drm_mm_remove_node(node); - drm_mm_takedown(&mm); - kfree(order); -err_bitmap: - bitmap_free(bitmap); -err_nodes: - vfree(nodes); -} - -static void drm_test_mm_bottomup(struct kunit *test) -{ - const struct insert_mode *bottomup = &insert_modes[BOTTOMUP]; - - DRM_RND_STATE(prng, random_seed); - const unsigned int count = 8192; - unsigned int size; - unsigned long *bitmap; - struct drm_mm mm; - struct drm_mm_node *nodes, *node, *next; - unsigned int *order, n, m, o = 0; - - /* Like drm_test_mm_topdown, but instead of searching for the last hole, - * we search for the first. - */ - - nodes = vzalloc(array_size(count, sizeof(*nodes))); - KUNIT_ASSERT_TRUE(test, nodes); - - bitmap = bitmap_zalloc(count, GFP_KERNEL); - if (!bitmap) - goto err_nodes; - - order = drm_random_order(count, &prng); - if (!order) - goto err_bitmap; - - for (size = 1; size <= 64; size <<= 1) { - drm_mm_init(&mm, 0, size * count); - for (n = 0; n < count; n++) { - if (!expect_insert(test, &mm, &nodes[n], size, 0, n, bottomup)) { - KUNIT_FAIL(test, - "bottomup insert failed, size %u step %d\n", size, n); - goto out; - } - - if (!assert_one_hole(test, &mm, size * (n + 1), size * count)) - goto out; - } - - if (!assert_continuous(test, &mm, size)) - goto out; - - drm_random_reorder(order, count, &prng); - for_each_prime_number_from(n, 1, min(count, max_prime)) { - for (m = 0; m < n; m++) { - node = &nodes[order[(o + m) % count]]; - drm_mm_remove_node(node); - __set_bit(node_index(node), bitmap); - } - - for (m = 0; m < n; m++) { - unsigned int first; - - node = &nodes[order[(o + m) % count]]; - if (!expect_insert(test, &mm, node, size, 0, 0, bottomup)) { - KUNIT_FAIL(test, "insert failed, step %d/%d\n", m, n); - goto out; - } - - first = find_first_bit(bitmap, count); - if (node_index(node) != first) { - KUNIT_FAIL(test, - "node %d/%d not inserted into bottom hole, expected %d, found %d\n", - m, n, first, node_index(node)); - goto out; - } - __clear_bit(first, bitmap); - } - - DRM_MM_BUG_ON(find_first_bit(bitmap, count) != count); - - o += n; - } - - drm_mm_for_each_node_safe(node, next, &mm) - drm_mm_remove_node(node); - DRM_MM_BUG_ON(!drm_mm_clean(&mm)); - cond_resched(); - } - -out: - drm_mm_for_each_node_safe(node, next, &mm) - drm_mm_remove_node(node); - drm_mm_takedown(&mm); - kfree(order); -err_bitmap: - bitmap_free(bitmap); -err_nodes: - vfree(nodes); -} - static void drm_test_mm_once(struct kunit *test, unsigned int mode) { struct drm_mm mm; @@ -1817,444 +339,23 @@ static void drm_test_mm_highest(struct kunit *test) drm_test_mm_once(test, DRM_MM_INSERT_HIGH); } -static void separate_adjacent_colors(const struct drm_mm_node *node, - unsigned long color, u64 *start, u64 *end) -{ - if (drm_mm_node_allocated(node) && node->color != color) - ++*start; - - node = list_next_entry(node, node_list); - if (drm_mm_node_allocated(node) && node->color != color) - --*end; -} - -static bool colors_abutt(struct kunit *test, const struct drm_mm_node *node) -{ - if (!drm_mm_hole_follows(node) && - drm_mm_node_allocated(list_next_entry(node, node_list))) { - KUNIT_FAIL(test, "colors abutt; %ld [%llx + %llx] is next to %ld [%llx + %llx]!\n", - node->color, node->start, node->size, - list_next_entry(node, node_list)->color, - list_next_entry(node, node_list)->start, - list_next_entry(node, node_list)->size); - return true; - } - - return false; -} - -static void drm_test_mm_color(struct kunit *test) -{ - const unsigned int count = min(4096u, max_iterations); - const struct insert_mode *mode; - struct drm_mm mm; - struct drm_mm_node *node, *nn; - unsigned int n; - - /* Color adjustment complicates everything. First we just check - * that when we insert a node we apply any color_adjustment callback. - * The callback we use should ensure that there is a gap between - * any two nodes, and so after each insertion we check that those - * holes are inserted and that they are preserved. - */ - - drm_mm_init(&mm, 0, U64_MAX); - - for (n = 1; n <= count; n++) { - node = kzalloc(sizeof(*node), GFP_KERNEL); - if (!node) - goto out; - - if (!expect_insert(test, &mm, node, n, 0, n, &insert_modes[0])) { - KUNIT_FAIL(test, "insert failed, step %d\n", n); - kfree(node); - goto out; - } - } - - drm_mm_for_each_node_safe(node, nn, &mm) { - if (node->color != node->size) { - KUNIT_FAIL(test, "invalid color stored: expected %lld, found %ld\n", - node->size, node->color); - - goto out; - } - - drm_mm_remove_node(node); - kfree(node); - } - - /* Now, let's start experimenting with applying a color callback */ - mm.color_adjust = separate_adjacent_colors; - for (mode = insert_modes; mode->name; mode++) { - u64 last; - - node = kzalloc(sizeof(*node), GFP_KERNEL); - if (!node) - goto out; - - node->size = 1 + 2 * count; - node->color = node->size; - - if (drm_mm_reserve_node(&mm, node)) { - KUNIT_FAIL(test, "initial reserve failed!\n"); - goto out; - } - - last = node->start + node->size; - - for (n = 1; n <= count; n++) { - int rem; - - node = kzalloc(sizeof(*node), GFP_KERNEL); - if (!node) - goto out; - - node->start = last; - node->size = n + count; - node->color = node->size; - - if (drm_mm_reserve_node(&mm, node) != -ENOSPC) { - KUNIT_FAIL(test, "reserve %d did not report color overlap!", n); - goto out; - } - - node->start += n + 1; - rem = misalignment(node, n + count); - node->start += n + count - rem; - - if (drm_mm_reserve_node(&mm, node)) { - KUNIT_FAIL(test, "reserve %d failed", n); - goto out; - } - - last = node->start + node->size; - } - - for (n = 1; n <= count; n++) { - node = kzalloc(sizeof(*node), GFP_KERNEL); - if (!node) - goto out; - - if (!expect_insert(test, &mm, node, n, n, n, mode)) { - KUNIT_FAIL(test, "%s insert failed, step %d\n", mode->name, n); - kfree(node); - goto out; - } - } - - drm_mm_for_each_node_safe(node, nn, &mm) { - u64 rem; - - if (node->color != node->size) { - KUNIT_FAIL(test, - "%s invalid color stored: expected %lld, found %ld\n", - mode->name, node->size, node->color); - - goto out; - } - - if (colors_abutt(test, node)) - goto out; - - div64_u64_rem(node->start, node->size, &rem); - if (rem) { - KUNIT_FAIL(test, - "%s colored node misaligned, start=%llx expected alignment=%lld [rem=%lld]\n", - mode->name, node->start, node->size, rem); - goto out; - } - - drm_mm_remove_node(node); - kfree(node); - } - - cond_resched(); - } - -out: - drm_mm_for_each_node_safe(node, nn, &mm) { - drm_mm_remove_node(node); - kfree(node); - } - drm_mm_takedown(&mm); -} - -static int evict_color(struct kunit *test, struct drm_mm *mm, u64 range_start, - u64 range_end, struct evict_node *nodes, unsigned int *order, - unsigned int count, unsigned int size, unsigned int alignment, - unsigned long color, const struct insert_mode *mode) -{ - struct drm_mm_scan scan; - LIST_HEAD(evict_list); - struct evict_node *e; - struct drm_mm_node tmp; - int err; - - drm_mm_scan_init_with_range(&scan, mm, size, alignment, color, range_start, - range_end, mode->mode); - if (!evict_nodes(test, &scan, nodes, order, count, true, &evict_list)) - return -EINVAL; - - memset(&tmp, 0, sizeof(tmp)); - err = drm_mm_insert_node_generic(mm, &tmp, size, alignment, color, - DRM_MM_INSERT_EVICT); - if (err) { - KUNIT_FAIL(test, - "Failed to insert into eviction hole: size=%d, align=%d, color=%lu, err=%d\n", - size, alignment, color, err); - show_scan(test, &scan); - show_holes(test, mm, 3); - return err; - } - - if (tmp.start < range_start || tmp.start + tmp.size > range_end) { - KUNIT_FAIL(test, - "Inserted [address=%llu + %llu] did not fit into the request range [%llu, %llu]\n", - tmp.start, tmp.size, range_start, range_end); - err = -EINVAL; - } - - if (colors_abutt(test, &tmp)) - err = -EINVAL; - - if (!assert_node(test, &tmp, mm, size, alignment, color)) { - KUNIT_FAIL(test, - "Inserted did not fit the eviction hole: size=%lld [%d], align=%d [rem=%lld], start=%llx\n", - tmp.size, size, alignment, misalignment(&tmp, alignment), tmp.start); - err = -EINVAL; - } - - drm_mm_remove_node(&tmp); - if (err) - return err; - - list_for_each_entry(e, &evict_list, link) { - err = drm_mm_reserve_node(mm, &e->node); - if (err) { - KUNIT_FAIL(test, "Failed to reinsert node after eviction: start=%llx\n", - e->node.start); - return err; - } - } - - cond_resched(); - return 0; -} - -static void drm_test_mm_color_evict(struct kunit *test) -{ - DRM_RND_STATE(prng, random_seed); - const unsigned int total_size = min(8192u, max_iterations); - const struct insert_mode *mode; - unsigned long color = 0; - struct drm_mm mm; - struct evict_node *nodes; - struct drm_mm_node *node, *next; - unsigned int *order, n; - - /* Check that the drm_mm_scan also honours color adjustment when - * choosing its victims to create a hole. Our color_adjust does not - * allow two nodes to be placed together without an intervening hole - * enlarging the set of victims that must be evicted. - */ - - nodes = vzalloc(array_size(total_size, sizeof(*nodes))); - KUNIT_ASSERT_TRUE(test, nodes); - - order = drm_random_order(total_size, &prng); - if (!order) - goto err_nodes; - - drm_mm_init(&mm, 0, 2 * total_size - 1); - mm.color_adjust = separate_adjacent_colors; - for (n = 0; n < total_size; n++) { - if (!expect_insert(test, &mm, &nodes[n].node, - 1, 0, color++, - &insert_modes[0])) { - KUNIT_FAIL(test, "insert failed, step %d\n", n); - goto out; - } - } - - for (mode = evict_modes; mode->name; mode++) { - for (n = 1; n <= total_size; n <<= 1) { - drm_random_reorder(order, total_size, &prng); - if (evict_color(test, &mm, 0, U64_MAX, nodes, order, total_size, - n, 1, color++, mode)) { - KUNIT_FAIL(test, "%s evict_color(size=%u) failed\n", mode->name, n); - goto out; - } - } - - for (n = 1; n < total_size; n <<= 1) { - drm_random_reorder(order, total_size, &prng); - if (evict_color(test, &mm, 0, U64_MAX, nodes, order, total_size, - total_size / 2, n, color++, mode)) { - KUNIT_FAIL(test, "%s evict_color(size=%u, alignment=%u) failed\n", - mode->name, total_size / 2, n); - goto out; - } - } - - for_each_prime_number_from(n, 1, min(total_size, max_prime)) { - unsigned int nsize = (total_size - n + 1) / 2; - - DRM_MM_BUG_ON(!nsize); - - drm_random_reorder(order, total_size, &prng); - if (evict_color(test, &mm, 0, U64_MAX, nodes, order, total_size, - nsize, n, color++, mode)) { - KUNIT_FAIL(test, "%s evict_color(size=%u, alignment=%u) failed\n", - mode->name, nsize, n); - goto out; - } - } - - cond_resched(); - } - -out: - drm_mm_for_each_node_safe(node, next, &mm) - drm_mm_remove_node(node); - drm_mm_takedown(&mm); - kfree(order); -err_nodes: - vfree(nodes); -} - -static void drm_test_mm_color_evict_range(struct kunit *test) -{ - DRM_RND_STATE(prng, random_seed); - const unsigned int total_size = 8192; - const unsigned int range_size = total_size / 2; - const unsigned int range_start = total_size / 4; - const unsigned int range_end = range_start + range_size; - const struct insert_mode *mode; - unsigned long color = 0; - struct drm_mm mm; - struct evict_node *nodes; - struct drm_mm_node *node, *next; - unsigned int *order, n; - - /* Like drm_test_mm_color_evict(), but limited to small portion of the full - * drm_mm range. - */ - - nodes = vzalloc(array_size(total_size, sizeof(*nodes))); - KUNIT_ASSERT_TRUE(test, nodes); - - order = drm_random_order(total_size, &prng); - if (!order) - goto err_nodes; - - drm_mm_init(&mm, 0, 2 * total_size - 1); - mm.color_adjust = separate_adjacent_colors; - for (n = 0; n < total_size; n++) { - if (!expect_insert(test, &mm, &nodes[n].node, - 1, 0, color++, - &insert_modes[0])) { - KUNIT_FAIL(test, "insert failed, step %d\n", n); - goto out; - } - } - - for (mode = evict_modes; mode->name; mode++) { - for (n = 1; n <= range_size; n <<= 1) { - drm_random_reorder(order, range_size, &prng); - if (evict_color(test, &mm, range_start, range_end, nodes, order, - total_size, n, 1, color++, mode)) { - KUNIT_FAIL(test, - "%s evict_color(size=%u) failed for range [%x, %x]\n", - mode->name, n, range_start, range_end); - goto out; - } - } - - for (n = 1; n < range_size; n <<= 1) { - drm_random_reorder(order, total_size, &prng); - if (evict_color(test, &mm, range_start, range_end, nodes, order, - total_size, range_size / 2, n, color++, mode)) { - KUNIT_FAIL(test, - "%s evict_color(size=%u, alignment=%u) failed for range [%x, %x]\n", - mode->name, total_size / 2, n, range_start, range_end); - goto out; - } - } - - for_each_prime_number_from(n, 1, min(range_size, max_prime)) { - unsigned int nsize = (range_size - n + 1) / 2; - - DRM_MM_BUG_ON(!nsize); - - drm_random_reorder(order, total_size, &prng); - if (evict_color(test, &mm, range_start, range_end, nodes, order, - total_size, nsize, n, color++, mode)) { - KUNIT_FAIL(test, - "%s evict_color(size=%u, alignment=%u) failed for range [%x, %x]\n", - mode->name, nsize, n, range_start, range_end); - goto out; - } - } - - cond_resched(); - } - -out: - drm_mm_for_each_node_safe(node, next, &mm) - drm_mm_remove_node(node); - drm_mm_takedown(&mm); - kfree(order); -err_nodes: - vfree(nodes); -} - -static int drm_mm_suite_init(struct kunit_suite *suite) -{ - while (!random_seed) - random_seed = get_random_u32(); - - kunit_info(suite, - "Testing DRM range manager, with random_seed=0x%x max_iterations=%u max_prime=%u\n", - random_seed, max_iterations, max_prime); - - return 0; -} - -module_param(random_seed, uint, 0400); -module_param(max_iterations, uint, 0400); -module_param(max_prime, uint, 0400); - static struct kunit_case drm_mm_tests[] = { KUNIT_CASE(drm_test_mm_init), KUNIT_CASE(drm_test_mm_debug), - KUNIT_CASE(drm_test_mm_reserve), - KUNIT_CASE(drm_test_mm_insert), - KUNIT_CASE(drm_test_mm_replace), - KUNIT_CASE(drm_test_mm_insert_range), - KUNIT_CASE(drm_test_mm_frag), - KUNIT_CASE(drm_test_mm_align), KUNIT_CASE(drm_test_mm_align32), KUNIT_CASE(drm_test_mm_align64), - KUNIT_CASE(drm_test_mm_evict), - KUNIT_CASE(drm_test_mm_evict_range), - KUNIT_CASE(drm_test_mm_topdown), - KUNIT_CASE(drm_test_mm_bottomup), KUNIT_CASE(drm_test_mm_lowest), KUNIT_CASE(drm_test_mm_highest), - KUNIT_CASE(drm_test_mm_color), - KUNIT_CASE(drm_test_mm_color_evict), - KUNIT_CASE(drm_test_mm_color_evict_range), {} }; static struct kunit_suite drm_mm_test_suite = { .name = "drm_mm", - .suite_init = drm_mm_suite_init, .test_cases = drm_mm_tests, }; kunit_test_suite(drm_mm_test_suite); MODULE_AUTHOR("Intel Corporation"); +MODULE_DESCRIPTION("Test cases for the drm_mm range manager"); MODULE_LICENSE("GPL"); diff --git a/drivers/gpu/drm/tests/drm_modes_test.c b/drivers/gpu/drm/tests/drm_modes_test.c index bc4aa2ce78be..f5b20f92df8b 100644 --- a/drivers/gpu/drm/tests/drm_modes_test.c +++ b/drivers/gpu/drm/tests/drm_modes_test.c @@ -36,17 +36,11 @@ static int drm_test_modes_init(struct kunit *test) return 0; } -static void drm_test_modes_exit(struct kunit *test) -{ - struct drm_test_modes_priv *priv = test->priv; - - drm_kunit_helper_free_device(test, priv->dev); -} - static void drm_test_modes_analog_tv_ntsc_480i(struct kunit *test) { struct drm_test_modes_priv *priv = test->priv; struct drm_display_mode *mode; + int ret; mode = drm_analog_tv_mode(priv->drm, DRM_MODE_TV_MODE_NTSC, @@ -54,6 +48,9 @@ static void drm_test_modes_analog_tv_ntsc_480i(struct kunit *test) true); KUNIT_ASSERT_NOT_NULL(test, mode); + ret = drm_kunit_add_mode_destroy_action(test, mode); + KUNIT_ASSERT_EQ(test, ret, 0); + KUNIT_EXPECT_EQ(test, drm_mode_vrefresh(mode), 60); KUNIT_EXPECT_EQ(test, mode->hdisplay, 720); @@ -77,6 +74,7 @@ static void drm_test_modes_analog_tv_ntsc_480i_inlined(struct kunit *test) { struct drm_test_modes_priv *priv = test->priv; struct drm_display_mode *expected, *mode; + int ret; expected = drm_analog_tv_mode(priv->drm, DRM_MODE_TV_MODE_NTSC, @@ -84,9 +82,15 @@ static void drm_test_modes_analog_tv_ntsc_480i_inlined(struct kunit *test) true); KUNIT_ASSERT_NOT_NULL(test, expected); + ret = drm_kunit_add_mode_destroy_action(test, expected); + KUNIT_ASSERT_EQ(test, ret, 0); + mode = drm_mode_analog_ntsc_480i(priv->drm); KUNIT_ASSERT_NOT_NULL(test, mode); + ret = drm_kunit_add_mode_destroy_action(test, mode); + KUNIT_ASSERT_EQ(test, ret, 0); + KUNIT_EXPECT_TRUE(test, drm_mode_equal(expected, mode)); } @@ -94,6 +98,7 @@ static void drm_test_modes_analog_tv_pal_576i(struct kunit *test) { struct drm_test_modes_priv *priv = test->priv; struct drm_display_mode *mode; + int ret; mode = drm_analog_tv_mode(priv->drm, DRM_MODE_TV_MODE_PAL, @@ -101,6 +106,9 @@ static void drm_test_modes_analog_tv_pal_576i(struct kunit *test) true); KUNIT_ASSERT_NOT_NULL(test, mode); + ret = drm_kunit_add_mode_destroy_action(test, mode); + KUNIT_ASSERT_EQ(test, ret, 0); + KUNIT_EXPECT_EQ(test, drm_mode_vrefresh(mode), 50); KUNIT_EXPECT_EQ(test, mode->hdisplay, 720); @@ -124,6 +132,7 @@ static void drm_test_modes_analog_tv_pal_576i_inlined(struct kunit *test) { struct drm_test_modes_priv *priv = test->priv; struct drm_display_mode *expected, *mode; + int ret; expected = drm_analog_tv_mode(priv->drm, DRM_MODE_TV_MODE_PAL, @@ -131,13 +140,54 @@ static void drm_test_modes_analog_tv_pal_576i_inlined(struct kunit *test) true); KUNIT_ASSERT_NOT_NULL(test, expected); + ret = drm_kunit_add_mode_destroy_action(test, expected); + KUNIT_ASSERT_EQ(test, ret, 0); + mode = drm_mode_analog_pal_576i(priv->drm); KUNIT_ASSERT_NOT_NULL(test, mode); + ret = drm_kunit_add_mode_destroy_action(test, mode); + KUNIT_ASSERT_EQ(test, ret, 0); + KUNIT_EXPECT_TRUE(test, drm_mode_equal(expected, mode)); } +static void drm_test_modes_analog_tv_mono_576i(struct kunit *test) +{ + struct drm_test_modes_priv *priv = test->priv; + struct drm_display_mode *mode; + int ret; + + mode = drm_analog_tv_mode(priv->drm, + DRM_MODE_TV_MODE_MONOCHROME, + 13500 * HZ_PER_KHZ, 720, 576, + true); + KUNIT_ASSERT_NOT_NULL(test, mode); + + ret = drm_kunit_add_mode_destroy_action(test, mode); + KUNIT_ASSERT_EQ(test, ret, 0); + + KUNIT_EXPECT_EQ(test, drm_mode_vrefresh(mode), 50); + KUNIT_EXPECT_EQ(test, mode->hdisplay, 720); + + /* BT.601 defines hsync_start at 732 for 576i */ + KUNIT_EXPECT_EQ(test, mode->hsync_start, 732); + + /* + * The PAL standard expects a line to take 64us. With a pixel + * clock of 13.5 MHz, a pixel takes around 74ns, so we need to + * have 64000ns / 74ns = 864. + * + * This is also mandated by BT.601. + */ + KUNIT_EXPECT_EQ(test, mode->htotal, 864); + + KUNIT_EXPECT_EQ(test, mode->vdisplay, 576); + KUNIT_EXPECT_EQ(test, mode->vtotal, 625); +} + static struct kunit_case drm_modes_analog_tv_tests[] = { + KUNIT_CASE(drm_test_modes_analog_tv_mono_576i), KUNIT_CASE(drm_test_modes_analog_tv_ntsc_480i), KUNIT_CASE(drm_test_modes_analog_tv_ntsc_480i_inlined), KUNIT_CASE(drm_test_modes_analog_tv_pal_576i), @@ -148,11 +198,11 @@ static struct kunit_case drm_modes_analog_tv_tests[] = { static struct kunit_suite drm_modes_analog_tv_test_suite = { .name = "drm_modes_analog_tv", .init = drm_test_modes_init, - .exit = drm_test_modes_exit, .test_cases = drm_modes_analog_tv_tests, }; kunit_test_suite(drm_modes_analog_tv_test_suite); MODULE_AUTHOR("Maxime Ripard <maxime@cerno.tech>"); +MODULE_DESCRIPTION("Kunit test for drm_modes functions"); MODULE_LICENSE("GPL"); diff --git a/drivers/gpu/drm/tests/drm_plane_helper_test.c b/drivers/gpu/drm/tests/drm_plane_helper_test.c index 0f392146b233..7e975a3f4a71 100644 --- a/drivers/gpu/drm/tests/drm_plane_helper_test.c +++ b/drivers/gpu/drm/tests/drm_plane_helper_test.c @@ -315,4 +315,5 @@ static struct kunit_suite drm_plane_helper_test_suite = { kunit_test_suite(drm_plane_helper_test_suite); +MODULE_DESCRIPTION("Test cases for the drm_plane_helper functions"); MODULE_LICENSE("GPL"); diff --git a/drivers/gpu/drm/tests/drm_probe_helper_test.c b/drivers/gpu/drm/tests/drm_probe_helper_test.c index 0ee65828623e..db0e4f5df275 100644 --- a/drivers/gpu/drm/tests/drm_probe_helper_test.c +++ b/drivers/gpu/drm/tests/drm_probe_helper_test.c @@ -60,13 +60,6 @@ static int drm_probe_helper_test_init(struct kunit *test) return 0; } -static void drm_probe_helper_test_exit(struct kunit *test) -{ - struct drm_probe_helper_test_priv *priv = test->priv; - - drm_kunit_helper_free_device(test, priv->dev); -} - typedef struct drm_display_mode *(*expected_mode_func_t)(struct drm_device *); struct drm_connector_helper_tv_get_modes_test { @@ -105,7 +98,7 @@ drm_test_connector_helper_tv_get_modes_check(struct kunit *test) struct drm_connector *connector = &priv->connector; struct drm_cmdline_mode *cmdline = &connector->cmdline_mode; struct drm_display_mode *mode; - const struct drm_display_mode *expected; + struct drm_display_mode *expected; size_t len; int ret; @@ -141,6 +134,9 @@ drm_test_connector_helper_tv_get_modes_check(struct kunit *test) KUNIT_EXPECT_TRUE(test, drm_mode_equal(mode, expected)); KUNIT_EXPECT_TRUE(test, mode->type & DRM_MODE_TYPE_PREFERRED); + + ret = drm_kunit_add_mode_destroy_action(test, expected); + KUNIT_ASSERT_EQ(test, ret, 0); } if (params->num_expected_modes >= 2) { @@ -152,6 +148,9 @@ drm_test_connector_helper_tv_get_modes_check(struct kunit *test) KUNIT_EXPECT_TRUE(test, drm_mode_equal(mode, expected)); KUNIT_EXPECT_FALSE(test, mode->type & DRM_MODE_TYPE_PREFERRED); + + ret = drm_kunit_add_mode_destroy_action(test, expected); + KUNIT_ASSERT_EQ(test, ret, 0); } mutex_unlock(&priv->drm->mode_config.mutex); @@ -208,11 +207,11 @@ static struct kunit_case drm_test_connector_helper_tv_get_modes_tests[] = { static struct kunit_suite drm_test_connector_helper_tv_get_modes_suite = { .name = "drm_connector_helper_tv_get_modes", .init = drm_probe_helper_test_init, - .exit = drm_probe_helper_test_exit, .test_cases = drm_test_connector_helper_tv_get_modes_tests, }; kunit_test_suite(drm_test_connector_helper_tv_get_modes_suite); MODULE_AUTHOR("Maxime Ripard <maxime@cerno.tech>"); +MODULE_DESCRIPTION("Kunit test for drm_probe_helper functions"); MODULE_LICENSE("GPL"); diff --git a/drivers/gpu/drm/tests/drm_rect_test.c b/drivers/gpu/drm/tests/drm_rect_test.c index e9809ea32696..17e1f34b7610 100644 --- a/drivers/gpu/drm/tests/drm_rect_test.c +++ b/drivers/gpu/drm/tests/drm_rect_test.c @@ -8,6 +8,19 @@ #include <kunit/test.h> #include <drm/drm_rect.h> +#include <drm/drm_mode.h> + +#include <linux/string_helpers.h> +#include <linux/errno.h> + +static void drm_rect_compare(struct kunit *test, const struct drm_rect *r, + const struct drm_rect *expected) +{ + KUNIT_EXPECT_EQ(test, r->x1, expected->x1); + KUNIT_EXPECT_EQ(test, r->y1, expected->y1); + KUNIT_EXPECT_EQ(test, drm_rect_width(r), drm_rect_width(expected)); + KUNIT_EXPECT_EQ(test, drm_rect_height(r), drm_rect_height(expected)); +} static void drm_test_rect_clip_scaled_div_by_zero(struct kunit *test) { @@ -196,11 +209,313 @@ static void drm_test_rect_clip_scaled_signed_vs_unsigned(struct kunit *test) KUNIT_EXPECT_FALSE_MSG(test, drm_rect_visible(&src), "Source should not be visible\n"); } +struct drm_rect_intersect_case { + const char *description; + struct drm_rect r1, r2; + bool should_be_visible; + struct drm_rect expected_intersection; +}; + +static const struct drm_rect_intersect_case drm_rect_intersect_cases[] = { + { + .description = "top-left x bottom-right", + .r1 = DRM_RECT_INIT(1, 1, 2, 2), + .r2 = DRM_RECT_INIT(0, 0, 2, 2), + .should_be_visible = true, + .expected_intersection = DRM_RECT_INIT(1, 1, 1, 1), + }, + { + .description = "top-right x bottom-left", + .r1 = DRM_RECT_INIT(0, 0, 2, 2), + .r2 = DRM_RECT_INIT(1, -1, 2, 2), + .should_be_visible = true, + .expected_intersection = DRM_RECT_INIT(1, 0, 1, 1), + }, + { + .description = "bottom-left x top-right", + .r1 = DRM_RECT_INIT(1, -1, 2, 2), + .r2 = DRM_RECT_INIT(0, 0, 2, 2), + .should_be_visible = true, + .expected_intersection = DRM_RECT_INIT(1, 0, 1, 1), + }, + { + .description = "bottom-right x top-left", + .r1 = DRM_RECT_INIT(0, 0, 2, 2), + .r2 = DRM_RECT_INIT(1, 1, 2, 2), + .should_be_visible = true, + .expected_intersection = DRM_RECT_INIT(1, 1, 1, 1), + }, + { + .description = "right x left", + .r1 = DRM_RECT_INIT(0, 0, 2, 1), + .r2 = DRM_RECT_INIT(1, 0, 3, 1), + .should_be_visible = true, + .expected_intersection = DRM_RECT_INIT(1, 0, 1, 1), + }, + { + .description = "left x right", + .r1 = DRM_RECT_INIT(1, 0, 3, 1), + .r2 = DRM_RECT_INIT(0, 0, 2, 1), + .should_be_visible = true, + .expected_intersection = DRM_RECT_INIT(1, 0, 1, 1), + }, + { + .description = "up x bottom", + .r1 = DRM_RECT_INIT(0, 0, 1, 2), + .r2 = DRM_RECT_INIT(0, -1, 1, 3), + .should_be_visible = true, + .expected_intersection = DRM_RECT_INIT(0, 0, 1, 2), + }, + { + .description = "bottom x up", + .r1 = DRM_RECT_INIT(0, -1, 1, 3), + .r2 = DRM_RECT_INIT(0, 0, 1, 2), + .should_be_visible = true, + .expected_intersection = DRM_RECT_INIT(0, 0, 1, 2), + }, + { + .description = "touching corner", + .r1 = DRM_RECT_INIT(0, 0, 1, 1), + .r2 = DRM_RECT_INIT(1, 1, 2, 2), + .should_be_visible = false, + .expected_intersection = DRM_RECT_INIT(1, 1, 0, 0), + }, + { + .description = "touching side", + .r1 = DRM_RECT_INIT(0, 0, 1, 1), + .r2 = DRM_RECT_INIT(1, 0, 1, 1), + .should_be_visible = false, + .expected_intersection = DRM_RECT_INIT(1, 0, 0, 1), + }, + { + .description = "equal rects", + .r1 = DRM_RECT_INIT(0, 0, 2, 2), + .r2 = DRM_RECT_INIT(0, 0, 2, 2), + .should_be_visible = true, + .expected_intersection = DRM_RECT_INIT(0, 0, 2, 2), + }, + { + .description = "inside another", + .r1 = DRM_RECT_INIT(0, 0, 2, 2), + .r2 = DRM_RECT_INIT(1, 1, 1, 1), + .should_be_visible = true, + .expected_intersection = DRM_RECT_INIT(1, 1, 1, 1), + }, + { + .description = "far away", + .r1 = DRM_RECT_INIT(0, 0, 1, 1), + .r2 = DRM_RECT_INIT(3, 6, 1, 1), + .should_be_visible = false, + .expected_intersection = DRM_RECT_INIT(3, 6, -2, -5), + }, + { + .description = "points intersecting", + .r1 = DRM_RECT_INIT(5, 10, 0, 0), + .r2 = DRM_RECT_INIT(5, 10, 0, 0), + .should_be_visible = false, + .expected_intersection = DRM_RECT_INIT(5, 10, 0, 0), + }, + { + .description = "points not intersecting", + .r1 = DRM_RECT_INIT(0, 0, 0, 0), + .r2 = DRM_RECT_INIT(5, 10, 0, 0), + .should_be_visible = false, + .expected_intersection = DRM_RECT_INIT(5, 10, -5, -10), + }, +}; + +static void drm_rect_intersect_case_desc(const struct drm_rect_intersect_case *t, char *desc) +{ + snprintf(desc, KUNIT_PARAM_DESC_SIZE, + "%s: " DRM_RECT_FMT " x " DRM_RECT_FMT, + t->description, DRM_RECT_ARG(&t->r1), DRM_RECT_ARG(&t->r2)); +} + +KUNIT_ARRAY_PARAM(drm_rect_intersect, drm_rect_intersect_cases, drm_rect_intersect_case_desc); + +static void drm_test_rect_intersect(struct kunit *test) +{ + const struct drm_rect_intersect_case *params = test->param_value; + struct drm_rect r1_aux = params->r1; + bool visible; + + visible = drm_rect_intersect(&r1_aux, ¶ms->r2); + + KUNIT_EXPECT_EQ(test, visible, params->should_be_visible); + drm_rect_compare(test, &r1_aux, ¶ms->expected_intersection); +} + +struct drm_rect_scale_case { + const char *name; + struct drm_rect src, dst; + int min_range, max_range; + int expected_scaling_factor; +}; + +static const struct drm_rect_scale_case drm_rect_scale_cases[] = { + { + .name = "normal use", + .src = DRM_RECT_INIT(0, 0, 2 << 16, 2 << 16), + .dst = DRM_RECT_INIT(0, 0, 1 << 16, 1 << 16), + .min_range = 0, .max_range = INT_MAX, + .expected_scaling_factor = 2, + }, + { + .name = "out of max range", + .src = DRM_RECT_INIT(0, 0, 10 << 16, 10 << 16), + .dst = DRM_RECT_INIT(0, 0, 1 << 16, 1 << 16), + .min_range = 3, .max_range = 5, + .expected_scaling_factor = -ERANGE, + }, + { + .name = "out of min range", + .src = DRM_RECT_INIT(0, 0, 2 << 16, 2 << 16), + .dst = DRM_RECT_INIT(0, 0, 1 << 16, 1 << 16), + .min_range = 3, .max_range = 5, + .expected_scaling_factor = -ERANGE, + }, + { + .name = "zero dst", + .src = DRM_RECT_INIT(0, 0, 2 << 16, 2 << 16), + .dst = DRM_RECT_INIT(0, 0, 0 << 16, 0 << 16), + .min_range = 0, .max_range = INT_MAX, + .expected_scaling_factor = 0, + }, + { + .name = "negative src", + .src = DRM_RECT_INIT(0, 0, -(1 << 16), -(1 << 16)), + .dst = DRM_RECT_INIT(0, 0, 1 << 16, 1 << 16), + .min_range = 0, .max_range = INT_MAX, + .expected_scaling_factor = -EINVAL, + }, + { + .name = "negative dst", + .src = DRM_RECT_INIT(0, 0, 1 << 16, 1 << 16), + .dst = DRM_RECT_INIT(0, 0, -(1 << 16), -(1 << 16)), + .min_range = 0, .max_range = INT_MAX, + .expected_scaling_factor = -EINVAL, + }, +}; + +static void drm_rect_scale_case_desc(const struct drm_rect_scale_case *t, char *desc) +{ + strscpy(desc, t->name, KUNIT_PARAM_DESC_SIZE); +} + +KUNIT_ARRAY_PARAM(drm_rect_scale, drm_rect_scale_cases, drm_rect_scale_case_desc); + +static void drm_test_rect_calc_hscale(struct kunit *test) +{ + const struct drm_rect_scale_case *params = test->param_value; + int scaling_factor; + + scaling_factor = drm_rect_calc_hscale(¶ms->src, ¶ms->dst, + params->min_range, params->max_range); + + KUNIT_EXPECT_EQ(test, scaling_factor, params->expected_scaling_factor); +} + +static void drm_test_rect_calc_vscale(struct kunit *test) +{ + const struct drm_rect_scale_case *params = test->param_value; + int scaling_factor; + + scaling_factor = drm_rect_calc_vscale(¶ms->src, ¶ms->dst, + params->min_range, params->max_range); + + KUNIT_EXPECT_EQ(test, scaling_factor, params->expected_scaling_factor); +} + +struct drm_rect_rotate_case { + const char *name; + unsigned int rotation; + struct drm_rect rect; + int width, height; + struct drm_rect expected; +}; + +static const struct drm_rect_rotate_case drm_rect_rotate_cases[] = { + { + .name = "reflect-x", + .rotation = DRM_MODE_REFLECT_X, + .rect = DRM_RECT_INIT(0, 0, 5, 5), + .width = 5, .height = 10, + .expected = DRM_RECT_INIT(0, 0, 5, 5), + }, + { + .name = "reflect-y", + .rotation = DRM_MODE_REFLECT_Y, + .rect = DRM_RECT_INIT(2, 0, 5, 5), + .width = 5, .height = 10, + .expected = DRM_RECT_INIT(2, 5, 5, 5), + }, + { + .name = "rotate-0", + .rotation = DRM_MODE_ROTATE_0, + .rect = DRM_RECT_INIT(0, 2, 5, 5), + .width = 5, .height = 10, + .expected = DRM_RECT_INIT(0, 2, 5, 5), + }, + { + .name = "rotate-90", + .rotation = DRM_MODE_ROTATE_90, + .rect = DRM_RECT_INIT(0, 0, 5, 10), + .width = 5, .height = 10, + .expected = DRM_RECT_INIT(0, 0, 10, 5), + }, + { + .name = "rotate-180", + .rotation = DRM_MODE_ROTATE_180, + .rect = DRM_RECT_INIT(11, 3, 5, 10), + .width = 5, .height = 10, + .expected = DRM_RECT_INIT(-11, -3, 5, 10), + }, + { + .name = "rotate-270", + .rotation = DRM_MODE_ROTATE_270, + .rect = DRM_RECT_INIT(6, 3, 5, 10), + .width = 5, .height = 10, + .expected = DRM_RECT_INIT(-3, 6, 10, 5), + }, +}; + +static void drm_rect_rotate_case_desc(const struct drm_rect_rotate_case *t, char *desc) +{ + strscpy(desc, t->name, KUNIT_PARAM_DESC_SIZE); +} + +KUNIT_ARRAY_PARAM(drm_rect_rotate, drm_rect_rotate_cases, drm_rect_rotate_case_desc); + +static void drm_test_rect_rotate(struct kunit *test) +{ + const struct drm_rect_rotate_case *params = test->param_value; + struct drm_rect r = params->rect; + + drm_rect_rotate(&r, params->width, params->height, params->rotation); + + drm_rect_compare(test, &r, ¶ms->expected); +} + +static void drm_test_rect_rotate_inv(struct kunit *test) +{ + const struct drm_rect_rotate_case *params = test->param_value; + struct drm_rect r = params->expected; + + drm_rect_rotate_inv(&r, params->width, params->height, params->rotation); + + drm_rect_compare(test, &r, ¶ms->rect); +} + static struct kunit_case drm_rect_tests[] = { KUNIT_CASE(drm_test_rect_clip_scaled_div_by_zero), KUNIT_CASE(drm_test_rect_clip_scaled_not_clipped), KUNIT_CASE(drm_test_rect_clip_scaled_clipped), KUNIT_CASE(drm_test_rect_clip_scaled_signed_vs_unsigned), + KUNIT_CASE_PARAM(drm_test_rect_intersect, drm_rect_intersect_gen_params), + KUNIT_CASE_PARAM(drm_test_rect_calc_hscale, drm_rect_scale_gen_params), + KUNIT_CASE_PARAM(drm_test_rect_calc_vscale, drm_rect_scale_gen_params), + KUNIT_CASE_PARAM(drm_test_rect_rotate, drm_rect_rotate_gen_params), + KUNIT_CASE_PARAM(drm_test_rect_rotate_inv, drm_rect_rotate_gen_params), { } }; @@ -211,4 +526,5 @@ static struct kunit_suite drm_rect_test_suite = { kunit_test_suite(drm_rect_test_suite); +MODULE_DESCRIPTION("Test cases for the drm_rect functions"); MODULE_LICENSE("GPL"); diff --git a/drivers/gpu/drm/tests/drm_sysfb_modeset_test.c b/drivers/gpu/drm/tests/drm_sysfb_modeset_test.c new file mode 100644 index 000000000000..e875d876118f --- /dev/null +++ b/drivers/gpu/drm/tests/drm_sysfb_modeset_test.c @@ -0,0 +1,168 @@ +// SPDX-License-Identifier: GPL-2.0+ + +#include <kunit/test.h> + +#include <drm/drm_fourcc.h> +#include <drm/drm_kunit_helpers.h> + +#include "../sysfb/drm_sysfb_helper.h" + +#define TEST_BUF_SIZE 50 + +struct sysfb_build_fourcc_list_case { + const char *name; + u32 native_fourccs[TEST_BUF_SIZE]; + size_t native_fourccs_size; + u32 expected[TEST_BUF_SIZE]; + size_t expected_fourccs_size; +}; + +static struct sysfb_build_fourcc_list_case sysfb_build_fourcc_list_cases[] = { + { + .name = "no native formats", + .native_fourccs = { }, + .native_fourccs_size = 0, + .expected = { DRM_FORMAT_XRGB8888 }, + .expected_fourccs_size = 1, + }, + { + .name = "XRGB8888 as native format", + .native_fourccs = { DRM_FORMAT_XRGB8888 }, + .native_fourccs_size = 1, + .expected = { DRM_FORMAT_XRGB8888 }, + .expected_fourccs_size = 1, + }, + { + .name = "remove duplicates", + .native_fourccs = { + DRM_FORMAT_XRGB8888, + DRM_FORMAT_XRGB8888, + DRM_FORMAT_RGB888, + DRM_FORMAT_RGB888, + DRM_FORMAT_RGB888, + DRM_FORMAT_XRGB8888, + DRM_FORMAT_RGB888, + DRM_FORMAT_RGB565, + DRM_FORMAT_RGB888, + DRM_FORMAT_XRGB8888, + DRM_FORMAT_RGB565, + DRM_FORMAT_RGB565, + DRM_FORMAT_XRGB8888, + }, + .native_fourccs_size = 11, + .expected = { + DRM_FORMAT_XRGB8888, + DRM_FORMAT_RGB888, + DRM_FORMAT_RGB565, + }, + .expected_fourccs_size = 3, + }, + { + .name = "convert alpha formats", + .native_fourccs = { + DRM_FORMAT_ARGB1555, + DRM_FORMAT_ABGR1555, + DRM_FORMAT_RGBA5551, + DRM_FORMAT_BGRA5551, + DRM_FORMAT_ARGB8888, + DRM_FORMAT_ABGR8888, + DRM_FORMAT_RGBA8888, + DRM_FORMAT_BGRA8888, + DRM_FORMAT_ARGB2101010, + DRM_FORMAT_ABGR2101010, + DRM_FORMAT_RGBA1010102, + DRM_FORMAT_BGRA1010102, + }, + .native_fourccs_size = 12, + .expected = { + DRM_FORMAT_XRGB1555, + DRM_FORMAT_XBGR1555, + DRM_FORMAT_RGBX5551, + DRM_FORMAT_BGRX5551, + DRM_FORMAT_XRGB8888, + DRM_FORMAT_XBGR8888, + DRM_FORMAT_RGBX8888, + DRM_FORMAT_BGRX8888, + DRM_FORMAT_XRGB2101010, + DRM_FORMAT_XBGR2101010, + DRM_FORMAT_RGBX1010102, + DRM_FORMAT_BGRX1010102, + }, + .expected_fourccs_size = 12, + }, + { + .name = "random formats", + .native_fourccs = { + DRM_FORMAT_Y212, + DRM_FORMAT_ARGB1555, + DRM_FORMAT_ABGR16161616F, + DRM_FORMAT_C8, + DRM_FORMAT_BGR888, + DRM_FORMAT_XRGB1555, + DRM_FORMAT_RGBA5551, + DRM_FORMAT_BGR565_A8, + DRM_FORMAT_R10, + DRM_FORMAT_XYUV8888, + }, + .native_fourccs_size = 10, + .expected = { + DRM_FORMAT_Y212, + DRM_FORMAT_XRGB1555, + DRM_FORMAT_ABGR16161616F, + DRM_FORMAT_C8, + DRM_FORMAT_BGR888, + DRM_FORMAT_RGBX5551, + DRM_FORMAT_BGR565_A8, + DRM_FORMAT_R10, + DRM_FORMAT_XYUV8888, + DRM_FORMAT_XRGB8888, + }, + .expected_fourccs_size = 10, + }, +}; + +static void sysfb_build_fourcc_list_case_desc(struct sysfb_build_fourcc_list_case *t, char *desc) +{ + strscpy(desc, t->name, KUNIT_PARAM_DESC_SIZE); +} + +KUNIT_ARRAY_PARAM(sysfb_build_fourcc_list, sysfb_build_fourcc_list_cases, + sysfb_build_fourcc_list_case_desc); + +static void drm_test_sysfb_build_fourcc_list(struct kunit *test) +{ + const struct sysfb_build_fourcc_list_case *params = test->param_value; + u32 fourccs_out[TEST_BUF_SIZE] = {0}; + size_t nfourccs_out; + struct drm_device *drm; + struct device *dev; + + dev = drm_kunit_helper_alloc_device(test); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, dev); + + drm = __drm_kunit_helper_alloc_drm_device(test, dev, sizeof(*drm), 0, DRIVER_MODESET); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, drm); + + nfourccs_out = drm_sysfb_build_fourcc_list(drm, params->native_fourccs, + params->native_fourccs_size, + fourccs_out, TEST_BUF_SIZE); + + KUNIT_EXPECT_EQ(test, nfourccs_out, params->expected_fourccs_size); + KUNIT_EXPECT_MEMEQ(test, fourccs_out, params->expected, TEST_BUF_SIZE); +} + +static struct kunit_case drm_sysfb_modeset_test_cases[] = { + KUNIT_CASE_PARAM(drm_test_sysfb_build_fourcc_list, sysfb_build_fourcc_list_gen_params), + {} +}; + +static struct kunit_suite drm_sysfb_modeset_test_suite = { + .name = "drm_sysfb_modeset_test", + .test_cases = drm_sysfb_modeset_test_cases, +}; + +kunit_test_suite(drm_sysfb_modeset_test_suite); + +MODULE_DESCRIPTION("KUnit tests for the drm_sysfb_modeset APIs"); +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("José Expósito <jose.exposito89@gmail.com>"); |