diff options
Diffstat (limited to 'drivers/gpu/drm/i915/display/intel_atomic_plane.c')
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_atomic_plane.c | 607 |
1 files changed, 0 insertions, 607 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_atomic_plane.c b/drivers/gpu/drm/i915/display/intel_atomic_plane.c deleted file mode 100644 index 36f52a1d7552..000000000000 --- a/drivers/gpu/drm/i915/display/intel_atomic_plane.c +++ /dev/null @@ -1,607 +0,0 @@ -/* - * Copyright © 2014 Intel Corporation - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice (including the next - * paragraph) shall be included in all copies or substantial portions of the - * Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING - * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER - * DEALINGS IN THE SOFTWARE. - */ - -/** - * DOC: atomic plane helpers - * - * The functions here are used by the atomic plane helper functions to - * implement legacy plane updates (i.e., drm_plane->update_plane() and - * drm_plane->disable_plane()). This allows plane updates to use the - * atomic state infrastructure and perform plane updates as separate - * prepare/check/commit/cleanup steps. - */ - -#include <drm/drm_atomic_helper.h> -#include <drm/drm_fourcc.h> -#include <drm/drm_plane_helper.h> - -#include "i915_trace.h" -#include "intel_atomic_plane.h" -#include "intel_cdclk.h" -#include "intel_display_types.h" -#include "intel_pm.h" -#include "intel_sprite.h" - -static void intel_plane_state_reset(struct intel_plane_state *plane_state, - struct intel_plane *plane) -{ - memset(plane_state, 0, sizeof(*plane_state)); - - __drm_atomic_helper_plane_state_reset(&plane_state->uapi, &plane->base); - - plane_state->scaler_id = -1; -} - -struct intel_plane *intel_plane_alloc(void) -{ - struct intel_plane_state *plane_state; - struct intel_plane *plane; - - plane = kzalloc(sizeof(*plane), GFP_KERNEL); - if (!plane) - return ERR_PTR(-ENOMEM); - - plane_state = kzalloc(sizeof(*plane_state), GFP_KERNEL); - if (!plane_state) { - kfree(plane); - return ERR_PTR(-ENOMEM); - } - - intel_plane_state_reset(plane_state, plane); - - plane->base.state = &plane_state->uapi; - - return plane; -} - -void intel_plane_free(struct intel_plane *plane) -{ - intel_plane_destroy_state(&plane->base, plane->base.state); - kfree(plane); -} - -/** - * intel_plane_duplicate_state - duplicate plane state - * @plane: drm plane - * - * Allocates and returns a copy of the plane state (both common and - * Intel-specific) for the specified plane. - * - * Returns: The newly allocated plane state, or NULL on failure. - */ -struct drm_plane_state * -intel_plane_duplicate_state(struct drm_plane *plane) -{ - struct intel_plane_state *intel_state; - - intel_state = to_intel_plane_state(plane->state); - intel_state = kmemdup(intel_state, sizeof(*intel_state), GFP_KERNEL); - - if (!intel_state) - return NULL; - - __drm_atomic_helper_plane_duplicate_state(plane, &intel_state->uapi); - - intel_state->ggtt_vma = NULL; - intel_state->dpt_vma = NULL; - intel_state->flags = 0; - - /* add reference to fb */ - if (intel_state->hw.fb) - drm_framebuffer_get(intel_state->hw.fb); - - return &intel_state->uapi; -} - -/** - * intel_plane_destroy_state - destroy plane state - * @plane: drm plane - * @state: state object to destroy - * - * Destroys the plane state (both common and Intel-specific) for the - * specified plane. - */ -void -intel_plane_destroy_state(struct drm_plane *plane, - struct drm_plane_state *state) -{ - struct intel_plane_state *plane_state = to_intel_plane_state(state); - - drm_WARN_ON(plane->dev, plane_state->ggtt_vma); - drm_WARN_ON(plane->dev, plane_state->dpt_vma); - - __drm_atomic_helper_plane_destroy_state(&plane_state->uapi); - if (plane_state->hw.fb) - drm_framebuffer_put(plane_state->hw.fb); - kfree(plane_state); -} - -unsigned int intel_adjusted_rate(const struct drm_rect *src, - const struct drm_rect *dst, - unsigned int rate) -{ - unsigned int src_w, src_h, dst_w, dst_h; - - src_w = drm_rect_width(src) >> 16; - src_h = drm_rect_height(src) >> 16; - dst_w = drm_rect_width(dst); - dst_h = drm_rect_height(dst); - - /* Downscaling limits the maximum pixel rate */ - dst_w = min(src_w, dst_w); - dst_h = min(src_h, dst_h); - - return DIV_ROUND_UP_ULL(mul_u32_u32(rate, src_w * src_h), - dst_w * dst_h); -} - -unsigned int intel_plane_pixel_rate(const struct intel_crtc_state *crtc_state, - const struct intel_plane_state *plane_state) -{ - /* - * Note we don't check for plane visibility here as - * we want to use this when calculating the cursor - * watermarks even if the cursor is fully offscreen. - * That depends on the src/dst rectangles being - * correctly populated whenever the watermark code - * considers the cursor to be visible, whether or not - * it is actually visible. - * - * See: intel_wm_plane_visible() and intel_check_cursor() - */ - - return intel_adjusted_rate(&plane_state->uapi.src, - &plane_state->uapi.dst, - crtc_state->pixel_rate); -} - -unsigned int intel_plane_data_rate(const struct intel_crtc_state *crtc_state, - const struct intel_plane_state *plane_state) -{ - const struct drm_framebuffer *fb = plane_state->hw.fb; - unsigned int cpp; - unsigned int pixel_rate; - - if (!plane_state->uapi.visible) - return 0; - - pixel_rate = intel_plane_pixel_rate(crtc_state, plane_state); - - cpp = fb->format->cpp[0]; - - /* - * Based on HSD#:1408715493 - * NV12 cpp == 4, P010 cpp == 8 - * - * FIXME what is the logic behind this? - */ - if (fb->format->is_yuv && fb->format->num_planes > 1) - cpp *= 4; - - return pixel_rate * cpp; -} - -int intel_plane_calc_min_cdclk(struct intel_atomic_state *state, - struct intel_plane *plane, - bool *need_cdclk_calc) -{ - struct drm_i915_private *dev_priv = to_i915(plane->base.dev); - const struct intel_plane_state *plane_state = - intel_atomic_get_new_plane_state(state, plane); - struct intel_crtc *crtc = to_intel_crtc(plane_state->hw.crtc); - const struct intel_cdclk_state *cdclk_state; - const struct intel_crtc_state *old_crtc_state; - struct intel_crtc_state *new_crtc_state; - - if (!plane_state->uapi.visible || !plane->min_cdclk) - return 0; - - old_crtc_state = intel_atomic_get_old_crtc_state(state, crtc); - new_crtc_state = intel_atomic_get_new_crtc_state(state, crtc); - - new_crtc_state->min_cdclk[plane->id] = - plane->min_cdclk(new_crtc_state, plane_state); - - /* - * No need to check against the cdclk state if - * the min cdclk for the plane doesn't increase. - * - * Ie. we only ever increase the cdclk due to plane - * requirements. This can reduce back and forth - * display blinking due to constant cdclk changes. - */ - if (new_crtc_state->min_cdclk[plane->id] <= - old_crtc_state->min_cdclk[plane->id]) - return 0; - - cdclk_state = intel_atomic_get_cdclk_state(state); - if (IS_ERR(cdclk_state)) - return PTR_ERR(cdclk_state); - - /* - * No need to recalculate the cdclk state if - * the min cdclk for the pipe doesn't increase. - * - * Ie. we only ever increase the cdclk due to plane - * requirements. This can reduce back and forth - * display blinking due to constant cdclk changes. - */ - if (new_crtc_state->min_cdclk[plane->id] <= - cdclk_state->min_cdclk[crtc->pipe]) - return 0; - - drm_dbg_kms(&dev_priv->drm, - "[PLANE:%d:%s] min cdclk (%d kHz) > [CRTC:%d:%s] min cdclk (%d kHz)\n", - plane->base.base.id, plane->base.name, - new_crtc_state->min_cdclk[plane->id], - crtc->base.base.id, crtc->base.name, - cdclk_state->min_cdclk[crtc->pipe]); - *need_cdclk_calc = true; - - return 0; -} - -static void intel_plane_clear_hw_state(struct intel_plane_state *plane_state) -{ - if (plane_state->hw.fb) - drm_framebuffer_put(plane_state->hw.fb); - - memset(&plane_state->hw, 0, sizeof(plane_state->hw)); -} - -void intel_plane_copy_uapi_to_hw_state(struct intel_plane_state *plane_state, - const struct intel_plane_state *from_plane_state, - struct intel_crtc *crtc) -{ - intel_plane_clear_hw_state(plane_state); - - /* - * For the bigjoiner slave uapi.crtc will point at - * the master crtc. So we explicitly assign the right - * slave crtc to hw.crtc. uapi.crtc!=NULL simply indicates - * the plane is logically enabled on the uapi level. - */ - plane_state->hw.crtc = from_plane_state->uapi.crtc ? &crtc->base : NULL; - - plane_state->hw.fb = from_plane_state->uapi.fb; - if (plane_state->hw.fb) - drm_framebuffer_get(plane_state->hw.fb); - - plane_state->hw.alpha = from_plane_state->uapi.alpha; - plane_state->hw.pixel_blend_mode = - from_plane_state->uapi.pixel_blend_mode; - plane_state->hw.rotation = from_plane_state->uapi.rotation; - plane_state->hw.color_encoding = from_plane_state->uapi.color_encoding; - plane_state->hw.color_range = from_plane_state->uapi.color_range; - plane_state->hw.scaling_filter = from_plane_state->uapi.scaling_filter; - - plane_state->uapi.src = drm_plane_state_src(&from_plane_state->uapi); - plane_state->uapi.dst = drm_plane_state_dest(&from_plane_state->uapi); -} - -void intel_plane_copy_hw_state(struct intel_plane_state *plane_state, - const struct intel_plane_state *from_plane_state) -{ - intel_plane_clear_hw_state(plane_state); - - memcpy(&plane_state->hw, &from_plane_state->hw, - sizeof(plane_state->hw)); - - if (plane_state->hw.fb) - drm_framebuffer_get(plane_state->hw.fb); -} - -void intel_plane_set_invisible(struct intel_crtc_state *crtc_state, - struct intel_plane_state *plane_state) -{ - struct intel_plane *plane = to_intel_plane(plane_state->uapi.plane); - - crtc_state->active_planes &= ~BIT(plane->id); - crtc_state->nv12_planes &= ~BIT(plane->id); - crtc_state->c8_planes &= ~BIT(plane->id); - crtc_state->data_rate[plane->id] = 0; - crtc_state->min_cdclk[plane->id] = 0; - - plane_state->uapi.visible = false; -} - -int intel_plane_atomic_check_with_state(const struct intel_crtc_state *old_crtc_state, - struct intel_crtc_state *new_crtc_state, - const struct intel_plane_state *old_plane_state, - struct intel_plane_state *new_plane_state) -{ - struct intel_plane *plane = to_intel_plane(new_plane_state->uapi.plane); - const struct drm_framebuffer *fb = new_plane_state->hw.fb; - int ret; - - intel_plane_set_invisible(new_crtc_state, new_plane_state); - new_crtc_state->enabled_planes &= ~BIT(plane->id); - - if (!new_plane_state->hw.crtc && !old_plane_state->hw.crtc) - return 0; - - ret = plane->check_plane(new_crtc_state, new_plane_state); - if (ret) - return ret; - - if (fb) - new_crtc_state->enabled_planes |= BIT(plane->id); - - /* FIXME pre-g4x don't work like this */ - if (new_plane_state->uapi.visible) - new_crtc_state->active_planes |= BIT(plane->id); - - if (new_plane_state->uapi.visible && - intel_format_info_is_yuv_semiplanar(fb->format, fb->modifier)) - new_crtc_state->nv12_planes |= BIT(plane->id); - - if (new_plane_state->uapi.visible && - fb->format->format == DRM_FORMAT_C8) - new_crtc_state->c8_planes |= BIT(plane->id); - - if (new_plane_state->uapi.visible || old_plane_state->uapi.visible) - new_crtc_state->update_planes |= BIT(plane->id); - - new_crtc_state->data_rate[plane->id] = - intel_plane_data_rate(new_crtc_state, new_plane_state); - - return intel_plane_atomic_calc_changes(old_crtc_state, new_crtc_state, - old_plane_state, new_plane_state); -} - -static struct intel_plane * -intel_crtc_get_plane(struct intel_crtc *crtc, enum plane_id plane_id) -{ - struct drm_i915_private *i915 = to_i915(crtc->base.dev); - struct intel_plane *plane; - - for_each_intel_plane_on_crtc(&i915->drm, crtc, plane) { - if (plane->id == plane_id) - return plane; - } - - return NULL; -} - -int intel_plane_atomic_check(struct intel_atomic_state *state, - struct intel_plane *plane) -{ - struct drm_i915_private *i915 = to_i915(state->base.dev); - struct intel_plane_state *new_plane_state = - intel_atomic_get_new_plane_state(state, plane); - const struct intel_plane_state *old_plane_state = - intel_atomic_get_old_plane_state(state, plane); - const struct intel_plane_state *new_master_plane_state; - struct intel_crtc *crtc = intel_get_crtc_for_pipe(i915, plane->pipe); - const struct intel_crtc_state *old_crtc_state = - intel_atomic_get_old_crtc_state(state, crtc); - struct intel_crtc_state *new_crtc_state = - intel_atomic_get_new_crtc_state(state, crtc); - - if (new_crtc_state && new_crtc_state->bigjoiner_slave) { - struct intel_plane *master_plane = - intel_crtc_get_plane(new_crtc_state->bigjoiner_linked_crtc, - plane->id); - - new_master_plane_state = - intel_atomic_get_new_plane_state(state, master_plane); - } else { - new_master_plane_state = new_plane_state; - } - - intel_plane_copy_uapi_to_hw_state(new_plane_state, - new_master_plane_state, - crtc); - - new_plane_state->uapi.visible = false; - if (!new_crtc_state) - return 0; - - return intel_plane_atomic_check_with_state(old_crtc_state, - new_crtc_state, - old_plane_state, - new_plane_state); -} - -static struct intel_plane * -skl_next_plane_to_commit(struct intel_atomic_state *state, - struct intel_crtc *crtc, - struct skl_ddb_entry entries_y[I915_MAX_PLANES], - struct skl_ddb_entry entries_uv[I915_MAX_PLANES], - unsigned int *update_mask) -{ - struct intel_crtc_state *crtc_state = - intel_atomic_get_new_crtc_state(state, crtc); - struct intel_plane_state *plane_state; - struct intel_plane *plane; - int i; - - if (*update_mask == 0) - return NULL; - - for_each_new_intel_plane_in_state(state, plane, plane_state, i) { - enum plane_id plane_id = plane->id; - - if (crtc->pipe != plane->pipe || - !(*update_mask & BIT(plane_id))) - continue; - - if (skl_ddb_allocation_overlaps(&crtc_state->wm.skl.plane_ddb_y[plane_id], - entries_y, - I915_MAX_PLANES, plane_id) || - skl_ddb_allocation_overlaps(&crtc_state->wm.skl.plane_ddb_uv[plane_id], - entries_uv, - I915_MAX_PLANES, plane_id)) - continue; - - *update_mask &= ~BIT(plane_id); - entries_y[plane_id] = crtc_state->wm.skl.plane_ddb_y[plane_id]; - entries_uv[plane_id] = crtc_state->wm.skl.plane_ddb_uv[plane_id]; - - return plane; - } - - /* should never happen */ - drm_WARN_ON(state->base.dev, 1); - - return NULL; -} - -void intel_update_plane(struct intel_plane *plane, - const struct intel_crtc_state *crtc_state, - const struct intel_plane_state *plane_state) -{ - struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc); - - trace_intel_update_plane(&plane->base, crtc); - - if (crtc_state->uapi.async_flip && plane->async_flip) - plane->async_flip(plane, crtc_state, plane_state, true); - else - plane->update_plane(plane, crtc_state, plane_state); -} - -void intel_disable_plane(struct intel_plane *plane, - const struct intel_crtc_state *crtc_state) -{ - struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc); - - trace_intel_disable_plane(&plane->base, crtc); - plane->disable_plane(plane, crtc_state); -} - -void skl_update_planes_on_crtc(struct intel_atomic_state *state, - struct intel_crtc *crtc) -{ - struct intel_crtc_state *old_crtc_state = - intel_atomic_get_old_crtc_state(state, crtc); - struct intel_crtc_state *new_crtc_state = - intel_atomic_get_new_crtc_state(state, crtc); - struct skl_ddb_entry entries_y[I915_MAX_PLANES]; - struct skl_ddb_entry entries_uv[I915_MAX_PLANES]; - u32 update_mask = new_crtc_state->update_planes; - struct intel_plane *plane; - - memcpy(entries_y, old_crtc_state->wm.skl.plane_ddb_y, - sizeof(old_crtc_state->wm.skl.plane_ddb_y)); - memcpy(entries_uv, old_crtc_state->wm.skl.plane_ddb_uv, - sizeof(old_crtc_state->wm.skl.plane_ddb_uv)); - - while ((plane = skl_next_plane_to_commit(state, crtc, - entries_y, entries_uv, - &update_mask))) { - struct intel_plane_state *new_plane_state = - intel_atomic_get_new_plane_state(state, plane); - - if (new_plane_state->uapi.visible || - new_plane_state->planar_slave) { - intel_update_plane(plane, new_crtc_state, new_plane_state); - } else { - intel_disable_plane(plane, new_crtc_state); - } - } -} - -void i9xx_update_planes_on_crtc(struct intel_atomic_state *state, - struct intel_crtc *crtc) -{ - struct intel_crtc_state *new_crtc_state = - intel_atomic_get_new_crtc_state(state, crtc); - u32 update_mask = new_crtc_state->update_planes; - struct intel_plane_state *new_plane_state; - struct intel_plane *plane; - int i; - - for_each_new_intel_plane_in_state(state, plane, new_plane_state, i) { - if (crtc->pipe != plane->pipe || - !(update_mask & BIT(plane->id))) - continue; - - if (new_plane_state->uapi.visible) - intel_update_plane(plane, new_crtc_state, new_plane_state); - else - intel_disable_plane(plane, new_crtc_state); - } -} - -int intel_atomic_plane_check_clipping(struct intel_plane_state *plane_state, - struct intel_crtc_state *crtc_state, - int min_scale, int max_scale, - bool can_position) -{ - struct drm_framebuffer *fb = plane_state->hw.fb; - struct drm_rect *src = &plane_state->uapi.src; - struct drm_rect *dst = &plane_state->uapi.dst; - unsigned int rotation = plane_state->hw.rotation; - struct drm_rect clip = {}; - int hscale, vscale; - - if (!fb) { - plane_state->uapi.visible = false; - return 0; - } - - drm_rect_rotate(src, fb->width << 16, fb->height << 16, rotation); - - /* Check scaling */ - hscale = drm_rect_calc_hscale(src, dst, min_scale, max_scale); - vscale = drm_rect_calc_vscale(src, dst, min_scale, max_scale); - if (hscale < 0 || vscale < 0) { - DRM_DEBUG_KMS("Invalid scaling of plane\n"); - drm_rect_debug_print("src: ", src, true); - drm_rect_debug_print("dst: ", dst, false); - return -ERANGE; - } - - if (crtc_state->hw.enable) { - clip.x2 = crtc_state->pipe_src_w; - clip.y2 = crtc_state->pipe_src_h; - } - - /* right side of the image is on the slave crtc, adjust dst to match */ - if (crtc_state->bigjoiner_slave) - drm_rect_translate(dst, -crtc_state->pipe_src_w, 0); - - /* - * FIXME: This might need further adjustment for seamless scaling - * with phase information, for the 2p2 and 2p1 scenarios. - */ - plane_state->uapi.visible = drm_rect_clip_scaled(src, dst, &clip); - - drm_rect_rotate_inv(src, fb->width << 16, fb->height << 16, rotation); - - if (!can_position && plane_state->uapi.visible && - !drm_rect_equals(dst, &clip)) { - DRM_DEBUG_KMS("Plane must cover entire CRTC\n"); - drm_rect_debug_print("dst: ", dst, false); - drm_rect_debug_print("clip: ", &clip, false); - return -EINVAL; - } - - return 0; -} - -const struct drm_plane_helper_funcs intel_plane_helper_funcs = { - .prepare_fb = intel_prepare_plane_fb, - .cleanup_fb = intel_cleanup_plane_fb, -}; |