From: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
Supposedly both src coordinates have to even when doing 90/270
degree rotation with RGB565. This is definitely true for the
X coordinate (we just get a black screen when it is odd). My
experiments didn't show any misbehaviour with an odd
Y coordinate, but let's trust the spec and reject that one
as well.
v2: Ignore ccs hsub/vsub
v3: Clarify the CCS special (Maarten)
Deal with tgl+ CCS modifiers where we
do need to look at hsub/vsub
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@xxxxxxxxxxxxxxx> #v2
Signed-off-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
---
drivers/gpu/drm/i915/display/intel_sprite.c | 32 ++++++++++++++-------
1 file changed, 21 insertions(+), 11 deletions(-)
diff --git a/drivers/gpu/drm/i915/display/intel_sprite.c b/drivers/gpu/drm/i915/display/intel_sprite.c
index 22ad6dde46ce..1ec5025c90f0 100644
--- a/drivers/gpu/drm/i915/display/intel_sprite.c
+++ b/drivers/gpu/drm/i915/display/intel_sprite.c
@@ -282,6 +282,16 @@ int intel_plane_check_src_coordinates(struct intel_plane_state *plane_state)
u32 src_x, src_y, src_w, src_h, hsub, vsub;
bool rotated = drm_rotation_90_or_270(plane_state->hw.rotation);
+ /*
+ * FIXME hsub/vsub vs. block size is a mess. Pre-tgl CCS
+ * abuses hsub/vsub so we can't use them here. But as they
+ * are limited to 32bpp RGB formats we don't actually need
+ * to check anything.
+ */
+ if (fb->modifier == I915_FORMAT_MOD_Y_TILED_CCS ||
+ fb->modifier == I915_FORMAT_MOD_Yf_TILED_CCS)
+ return 0;
+
/*
* Hardware doesn't handle subpixel coordinates.
* Adjust to (macro)pixel boundary, but be careful not to
@@ -296,26 +306,26 @@ int intel_plane_check_src_coordinates(struct intel_plane_state *plane_state)
drm_rect_init(src, src_x << 16, src_y << 16,
src_w << 16, src_h << 16);
- if (!fb->format->is_yuv)
- return 0;
-
- /* YUV specific checks */
- if (!rotated) {
+ if (fb->format->format == DRM_FORMAT_RGB565 && rotated) {
+ hsub = 2;
+ vsub = 2;
+ } else {
hsub = fb->format->hsub;
vsub = fb->format->vsub;
- } else {
- hsub = vsub = max(fb->format->hsub, fb->format->vsub);
}
+ if (rotated)
+ hsub = vsub = max(hsub, vsub);
+
if (src_x % hsub || src_w % hsub) {
- DRM_DEBUG_KMS("src x/w (%u, %u) must be a multiple of %u for %sYUV planes\n",
- src_x, src_w, hsub, rotated ? "rotated " : "");
+ DRM_DEBUG_KMS("src x/w (%u, %u) must be a multiple of %u (rotated: %s)\n",
+ src_x, src_w, hsub, yesno(rotated));
return -EINVAL;
}
if (src_y % vsub || src_h % vsub) {
- DRM_DEBUG_KMS("src y/h (%u, %u) must be a multiple of %u for %sYUV planes\n",
- src_y, src_h, vsub, rotated ? "rotated " : "");
+ DRM_DEBUG_KMS("src y/h (%u, %u) must be a multiple of %u (rotated: %s)\n",
+ src_y, src_h, vsub, yesno(rotated));
return -EINVAL;
}
--
2.24.1
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