[PATCH 3/3] drm/i915: Do not adjust scale when out of bounds, v2.
Maarten Lankhorst
maarten.lankhorst at linux.intel.com
Thu Apr 26 08:28:21 UTC 2018
With the previous patch drm_atomic_helper_check_plane_state correctly
calculates clipping and the xf86-video-intel ddx is fixed to fall back
to GPU correctly when SetPlane fails, we can remove the hack where
we try to pan/zoom when out of min/max scaling range. This was already
poor behavior where the screen didn't show what was requested, and now
instead we reject it outright. This simplifies check_sprite_plane a lot.
Changes since v1:
- Set crtc_h to the height correctly.
- Reject < 3x3 rectangles instead of making them invisible for <gen9.
For gen9+ skl_update_scaler_plane will reject them.
Signed-off-by: Maarten Lankhorst <maarten.lankhorst at linux.intel.com>
---
drivers/gpu/drm/i915/intel_sprite.c | 144 +++++++---------------------
1 file changed, 35 insertions(+), 109 deletions(-)
diff --git a/drivers/gpu/drm/i915/intel_sprite.c b/drivers/gpu/drm/i915/intel_sprite.c
index aa1dfaa692b9..970015dcc6f1 100644
--- a/drivers/gpu/drm/i915/intel_sprite.c
+++ b/drivers/gpu/drm/i915/intel_sprite.c
@@ -936,22 +936,12 @@ intel_check_sprite_plane(struct intel_plane *plane,
struct drm_i915_private *dev_priv = to_i915(plane->base.dev);
struct intel_crtc *crtc = to_intel_crtc(crtc_state->base.crtc);
struct drm_framebuffer *fb = state->base.fb;
- int crtc_x, crtc_y;
- unsigned int crtc_w, crtc_h;
- uint32_t src_x, src_y, src_w, src_h;
- struct drm_rect *src = &state->base.src;
- struct drm_rect *dst = &state->base.dst;
- struct drm_rect clip = {};
int max_stride = INTEL_GEN(dev_priv) >= 9 ? 32768 : 16384;
- int hscale, vscale;
int max_scale, min_scale;
bool can_scale;
int ret;
uint32_t pixel_format = 0;
- *src = drm_plane_state_src(&state->base);
- *dst = drm_plane_state_dest(&state->base);
-
if (!fb) {
state->base.visible = false;
return 0;
@@ -990,64 +980,19 @@ intel_check_sprite_plane(struct intel_plane *plane,
min_scale = plane->can_scale ? 1 : (1 << 16);
}
- /*
- * FIXME the following code does a bunch of fuzzy adjustments to the
- * coordinates and sizes. We probably need some way to decide whether
- * more strict checking should be done instead.
- */
- drm_rect_rotate(src, fb->width << 16, fb->height << 16,
- state->base.rotation);
-
- hscale = drm_rect_calc_hscale_relaxed(src, dst, min_scale, max_scale);
- BUG_ON(hscale < 0);
-
- vscale = drm_rect_calc_vscale_relaxed(src, dst, min_scale, max_scale);
- BUG_ON(vscale < 0);
-
- if (crtc_state->base.enable)
- drm_mode_get_hv_timing(&crtc_state->base.mode,
- &clip.x2, &clip.y2);
-
- state->base.visible = drm_rect_clip_scaled(src, dst, &clip, hscale, vscale);
-
- crtc_x = dst->x1;
- crtc_y = dst->y1;
- crtc_w = drm_rect_width(dst);
- crtc_h = drm_rect_height(dst);
+ ret = drm_atomic_helper_check_plane_state(&state->base,
+ &crtc_state->base,
+ min_scale, max_scale,
+ true, true);
+ if (ret)
+ return ret;
if (state->base.visible) {
- /* check again in case clipping clamped the results */
- hscale = drm_rect_calc_hscale(src, dst, min_scale, max_scale);
- if (hscale < 0) {
- DRM_DEBUG_KMS("Horizontal scaling factor out of limits\n");
- drm_rect_debug_print("src: ", src, true);
- drm_rect_debug_print("dst: ", dst, false);
-
- return hscale;
- }
-
- vscale = drm_rect_calc_vscale(src, dst, min_scale, max_scale);
- if (vscale < 0) {
- DRM_DEBUG_KMS("Vertical scaling factor out of limits\n");
- drm_rect_debug_print("src: ", src, true);
- drm_rect_debug_print("dst: ", dst, false);
-
- return vscale;
- }
-
- /* Make the source viewport size an exact multiple of the scaling factors. */
- drm_rect_adjust_size(src,
- drm_rect_width(dst) * hscale - drm_rect_width(src),
- drm_rect_height(dst) * vscale - drm_rect_height(src));
-
- drm_rect_rotate_inv(src, fb->width << 16, fb->height << 16,
- state->base.rotation);
-
- /* sanity check to make sure the src viewport wasn't enlarged */
- WARN_ON(src->x1 < (int) state->base.src_x ||
- src->y1 < (int) state->base.src_y ||
- src->x2 > (int) state->base.src_x + state->base.src_w ||
- src->y2 > (int) state->base.src_y + state->base.src_h);
+ struct drm_rect *src = &state->base.src;
+ struct drm_rect *dst = &state->base.dst;
+ unsigned int crtc_w = drm_rect_width(dst);
+ unsigned int crtc_h = drm_rect_height(dst);
+ uint32_t src_x, src_y, src_w, src_h;
/*
* Hardware doesn't handle subpixel coordinates.
@@ -1060,58 +1005,39 @@ intel_check_sprite_plane(struct intel_plane *plane,
src_y = src->y1 >> 16;
src_h = drm_rect_height(src) >> 16;
- if (intel_format_is_yuv(fb->format->format)) {
- src_x &= ~1;
- src_w &= ~1;
-
- /*
- * Must keep src and dst the
- * same if we can't scale.
- */
- if (!can_scale)
- crtc_w &= ~1;
+ src->x1 = src_x << 16;
+ src->x2 = (src_x + src_w) << 16;
+ src->y1 = src_y << 16;
+ src->y2 = (src_y + src_h) << 16;
- if (crtc_w == 0)
- state->base.visible = false;
+ if (intel_format_is_yuv(fb->format->format) &&
+ (src_x % 2 || src_w % 2)) {
+ DRM_DEBUG_KMS("src x/w (%u, %u) must be a multiple of 2 for YUV planes\n",
+ src_x, src_w);
+ return -EINVAL;
}
- }
- /* Check size restrictions when scaling */
- if (state->base.visible && (src_w != crtc_w || src_h != crtc_h)) {
- unsigned int width_bytes;
- int cpp = fb->format->cpp[0];
+ /* Check size restrictions when scaling */
+ if (src_w != crtc_w || src_h != crtc_h) {
+ unsigned int width_bytes;
+ int cpp = fb->format->cpp[0];
- WARN_ON(!can_scale);
+ WARN_ON(!can_scale);
- /* FIXME interlacing min height is 6 */
+ width_bytes = ((src_x * cpp) & 63) + src_w * cpp;
- if (crtc_w < 3 || crtc_h < 3)
- state->base.visible = false;
-
- if (src_w < 3 || src_h < 3)
- state->base.visible = false;
-
- width_bytes = ((src_x * cpp) & 63) + src_w * cpp;
-
- if (INTEL_GEN(dev_priv) < 9 && (src_w > 2048 || src_h > 2048 ||
- width_bytes > 4096 || fb->pitches[0] > 4096)) {
- DRM_DEBUG_KMS("Source dimensions exceed hardware limits\n");
- return -EINVAL;
+ /* FIXME interlacing min height is 6 */
+ if (INTEL_GEN(dev_priv) < 9 && (
+ src_w < 3 || src_h < 3 ||
+ src_w > 2048 || src_h > 2048 ||
+ crtc_w < 3 || crtc_h < 3 ||
+ width_bytes > 4096 || fb->pitches[0] > 4096)) {
+ DRM_DEBUG_KMS("Source dimensions exceed hardware limits\n");
+ return -EINVAL;
+ }
}
}
- if (state->base.visible) {
- src->x1 = src_x << 16;
- src->x2 = (src_x + src_w) << 16;
- src->y1 = src_y << 16;
- src->y2 = (src_y + src_h) << 16;
- }
-
- dst->x1 = crtc_x;
- dst->x2 = crtc_x + crtc_w;
- dst->y1 = crtc_y;
- dst->y2 = crtc_y + crtc_h;
-
if (INTEL_GEN(dev_priv) >= 9) {
ret = skl_check_plane_surface(crtc_state, state);
if (ret)
--
2.17.0
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