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path: root/drivers/gpu/drm/virtio/virtgpu_display.c
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Diffstat (limited to 'drivers/gpu/drm/virtio/virtgpu_display.c')
-rw-r--r--drivers/gpu/drm/virtio/virtgpu_display.c187
1 files changed, 36 insertions, 151 deletions
diff --git a/drivers/gpu/drm/virtio/virtgpu_display.c b/drivers/gpu/drm/virtio/virtgpu_display.c
index d4305da88f44..4e192aa2d021 100644
--- a/drivers/gpu/drm/virtio/virtgpu_display.c
+++ b/drivers/gpu/drm/virtio/virtgpu_display.c
@@ -29,8 +29,8 @@
#include <drm/drm_crtc_helper.h>
#include <drm/drm_atomic_helper.h>
-#define XRES_MIN 320
-#define YRES_MIN 200
+#define XRES_MIN 32
+#define YRES_MIN 32
#define XRES_DEF 1024
#define YRES_DEF 768
@@ -38,138 +38,11 @@
#define XRES_MAX 8192
#define YRES_MAX 8192
-static void
-virtio_gpu_hide_cursor(struct virtio_gpu_device *vgdev,
- struct virtio_gpu_output *output)
-{
- output->cursor.hdr.type = cpu_to_le32(VIRTIO_GPU_CMD_UPDATE_CURSOR);
- output->cursor.resource_id = 0;
- virtio_gpu_cursor_ping(vgdev, output);
-}
-
-static int virtio_gpu_crtc_cursor_set(struct drm_crtc *crtc,
- struct drm_file *file_priv,
- uint32_t handle,
- uint32_t width,
- uint32_t height,
- int32_t hot_x, int32_t hot_y)
-{
- struct virtio_gpu_device *vgdev = crtc->dev->dev_private;
- struct virtio_gpu_output *output =
- container_of(crtc, struct virtio_gpu_output, crtc);
- struct drm_gem_object *gobj = NULL;
- struct virtio_gpu_object *qobj = NULL;
- struct virtio_gpu_fence *fence = NULL;
- int ret = 0;
-
- if (handle == 0) {
- virtio_gpu_hide_cursor(vgdev, output);
- return 0;
- }
-
- /* lookup the cursor */
- gobj = drm_gem_object_lookup(file_priv, handle);
- if (gobj == NULL)
- return -ENOENT;
-
- qobj = gem_to_virtio_gpu_obj(gobj);
-
- if (!qobj->hw_res_handle) {
- ret = -EINVAL;
- goto out;
- }
-
- virtio_gpu_cmd_transfer_to_host_2d(vgdev, qobj->hw_res_handle, 0,
- cpu_to_le32(64),
- cpu_to_le32(64),
- 0, 0, &fence);
- ret = virtio_gpu_object_reserve(qobj, false);
- if (!ret) {
- reservation_object_add_excl_fence(qobj->tbo.resv,
- &fence->f);
- fence_put(&fence->f);
- virtio_gpu_object_unreserve(qobj);
- virtio_gpu_object_wait(qobj, false);
- }
-
- output->cursor.hdr.type = cpu_to_le32(VIRTIO_GPU_CMD_UPDATE_CURSOR);
- output->cursor.resource_id = cpu_to_le32(qobj->hw_res_handle);
- output->cursor.hot_x = cpu_to_le32(hot_x);
- output->cursor.hot_y = cpu_to_le32(hot_y);
- virtio_gpu_cursor_ping(vgdev, output);
- ret = 0;
-
-out:
- drm_gem_object_unreference_unlocked(gobj);
- return ret;
-}
-
-static int virtio_gpu_crtc_cursor_move(struct drm_crtc *crtc,
- int x, int y)
-{
- struct virtio_gpu_device *vgdev = crtc->dev->dev_private;
- struct virtio_gpu_output *output =
- container_of(crtc, struct virtio_gpu_output, crtc);
-
- output->cursor.hdr.type = cpu_to_le32(VIRTIO_GPU_CMD_MOVE_CURSOR);
- output->cursor.pos.x = cpu_to_le32(x);
- output->cursor.pos.y = cpu_to_le32(y);
- virtio_gpu_cursor_ping(vgdev, output);
- return 0;
-}
-
-static int virtio_gpu_page_flip(struct drm_crtc *crtc,
- struct drm_framebuffer *fb,
- struct drm_pending_vblank_event *event,
- uint32_t flags)
-{
- struct virtio_gpu_device *vgdev = crtc->dev->dev_private;
- struct virtio_gpu_output *output =
- container_of(crtc, struct virtio_gpu_output, crtc);
- struct drm_plane *plane = crtc->primary;
- struct virtio_gpu_framebuffer *vgfb;
- struct virtio_gpu_object *bo;
- unsigned long irqflags;
- uint32_t handle;
-
- plane->fb = fb;
- vgfb = to_virtio_gpu_framebuffer(plane->fb);
- bo = gem_to_virtio_gpu_obj(vgfb->obj);
- handle = bo->hw_res_handle;
-
- DRM_DEBUG("handle 0x%x%s, crtc %dx%d\n", handle,
- bo->dumb ? ", dumb" : "",
- crtc->mode.hdisplay, crtc->mode.vdisplay);
- if (bo->dumb) {
- virtio_gpu_cmd_transfer_to_host_2d
- (vgdev, handle, 0,
- cpu_to_le32(crtc->mode.hdisplay),
- cpu_to_le32(crtc->mode.vdisplay),
- 0, 0, NULL);
- }
- virtio_gpu_cmd_set_scanout(vgdev, output->index, handle,
- crtc->mode.hdisplay,
- crtc->mode.vdisplay, 0, 0);
- virtio_gpu_cmd_resource_flush(vgdev, handle, 0, 0,
- crtc->mode.hdisplay,
- crtc->mode.vdisplay);
-
- if (event) {
- spin_lock_irqsave(&crtc->dev->event_lock, irqflags);
- drm_send_vblank_event(crtc->dev, -1, event);
- spin_unlock_irqrestore(&crtc->dev->event_lock, irqflags);
- }
-
- return 0;
-}
-
static const struct drm_crtc_funcs virtio_gpu_crtc_funcs = {
- .cursor_set2 = virtio_gpu_crtc_cursor_set,
- .cursor_move = virtio_gpu_crtc_cursor_move,
.set_config = drm_atomic_helper_set_config,
.destroy = drm_crtc_cleanup,
- .page_flip = virtio_gpu_page_flip,
+ .page_flip = drm_atomic_helper_page_flip,
.reset = drm_atomic_helper_crtc_reset,
.atomic_duplicate_state = drm_atomic_helper_crtc_duplicate_state,
.atomic_destroy_state = drm_atomic_helper_crtc_destroy_state,
@@ -180,8 +53,7 @@ static void virtio_gpu_user_framebuffer_destroy(struct drm_framebuffer *fb)
struct virtio_gpu_framebuffer *virtio_gpu_fb
= to_virtio_gpu_framebuffer(fb);
- if (virtio_gpu_fb->obj)
- drm_gem_object_unreference_unlocked(virtio_gpu_fb->obj);
+ drm_gem_object_unreference_unlocked(virtio_gpu_fb->obj);
drm_framebuffer_cleanup(fb);
kfree(virtio_gpu_fb);
}
@@ -267,6 +139,7 @@ static void virtio_gpu_crtc_atomic_flush(struct drm_crtc *crtc,
spin_lock_irqsave(&crtc->dev->event_lock, flags);
if (crtc->state->event)
drm_crtc_send_vblank_event(crtc, crtc->state->event);
+ crtc->state->event = NULL;
spin_unlock_irqrestore(&crtc->dev->event_lock, flags);
}
@@ -341,15 +214,6 @@ static int virtio_gpu_conn_mode_valid(struct drm_connector *connector,
return MODE_BAD;
}
-static struct drm_encoder*
-virtio_gpu_best_encoder(struct drm_connector *connector)
-{
- struct virtio_gpu_output *virtio_gpu_output =
- drm_connector_to_virtio_gpu_output(connector);
-
- return &virtio_gpu_output->enc;
-}
-
static const struct drm_encoder_helper_funcs virtio_gpu_enc_helper_funcs = {
.mode_set = virtio_gpu_enc_mode_set,
.enable = virtio_gpu_enc_enable,
@@ -359,7 +223,6 @@ static const struct drm_encoder_helper_funcs virtio_gpu_enc_helper_funcs = {
static const struct drm_connector_helper_funcs virtio_gpu_conn_helper_funcs = {
.get_modes = virtio_gpu_conn_get_modes,
.mode_valid = virtio_gpu_conn_mode_valid,
- .best_encoder = virtio_gpu_best_encoder,
};
static enum drm_connector_status virtio_gpu_conn_detect(
@@ -406,7 +269,7 @@ static int vgdev_output_init(struct virtio_gpu_device *vgdev, int index)
struct drm_connector *connector = &output->conn;
struct drm_encoder *encoder = &output->enc;
struct drm_crtc *crtc = &output->crtc;
- struct drm_plane *plane;
+ struct drm_plane *primary, *cursor;
output->index = index;
if (index == 0) {
@@ -415,13 +278,17 @@ static int vgdev_output_init(struct virtio_gpu_device *vgdev, int index)
output->info.r.height = cpu_to_le32(YRES_DEF);
}
- plane = virtio_gpu_plane_init(vgdev, index);
- if (IS_ERR(plane))
- return PTR_ERR(plane);
- drm_crtc_init_with_planes(dev, crtc, plane, NULL,
+ primary = virtio_gpu_plane_init(vgdev, DRM_PLANE_TYPE_PRIMARY, index);
+ if (IS_ERR(primary))
+ return PTR_ERR(primary);
+ cursor = virtio_gpu_plane_init(vgdev, DRM_PLANE_TYPE_CURSOR, index);
+ if (IS_ERR(cursor))
+ return PTR_ERR(cursor);
+ drm_crtc_init_with_planes(dev, crtc, primary, cursor,
&virtio_gpu_crtc_funcs, NULL);
drm_crtc_helper_add(crtc, &virtio_gpu_crtc_helper_funcs);
- plane->crtc = crtc;
+ primary->crtc = crtc;
+ cursor->crtc = crtc;
drm_connector_init(dev, connector, &virtio_gpu_connector_funcs,
DRM_MODE_CONNECTOR_VIRTUAL);
@@ -458,14 +325,31 @@ virtio_gpu_user_framebuffer_create(struct drm_device *dev,
ret = virtio_gpu_framebuffer_init(dev, virtio_gpu_fb, mode_cmd, obj);
if (ret) {
kfree(virtio_gpu_fb);
- if (obj)
- drm_gem_object_unreference_unlocked(obj);
+ drm_gem_object_unreference_unlocked(obj);
return NULL;
}
return &virtio_gpu_fb->base;
}
+static void vgdev_atomic_commit_tail(struct drm_atomic_state *state)
+{
+ struct drm_device *dev = state->dev;
+
+ drm_atomic_helper_commit_modeset_disables(dev, state);
+ drm_atomic_helper_commit_modeset_enables(dev, state);
+ drm_atomic_helper_commit_planes(dev, state, true);
+
+ drm_atomic_helper_commit_hw_done(state);
+
+ drm_atomic_helper_wait_for_vblanks(dev, state);
+ drm_atomic_helper_cleanup_planes(dev, state);
+}
+
+static struct drm_mode_config_helper_funcs virtio_mode_config_helpers = {
+ .atomic_commit_tail = vgdev_atomic_commit_tail,
+};
+
static const struct drm_mode_config_funcs virtio_gpu_mode_funcs = {
.fb_create = virtio_gpu_user_framebuffer_create,
.atomic_check = drm_atomic_helper_check,
@@ -477,7 +361,8 @@ int virtio_gpu_modeset_init(struct virtio_gpu_device *vgdev)
int i;
drm_mode_config_init(vgdev->ddev);
- vgdev->ddev->mode_config.funcs = (void *)&virtio_gpu_mode_funcs;
+ vgdev->ddev->mode_config.funcs = &virtio_gpu_mode_funcs;
+ vgdev->ddev->mode_config.helper_private = &virtio_mode_config_helpers;
/* modes will be validated against the framebuffer size */
vgdev->ddev->mode_config.min_width = XRES_MIN;
generated by cgit (git 2.34.1) at 2024-06-14 16:21:20 +0000