We skip src trunction/adjustments for
NV12 case and handle the sizes directly.
Without this, pipe fifo underruns are seen on APL/KBL.
Credits-to: Maarten Lankhorst <maarten.lankho...@linux.intel.com>
Signed-off-by: Vidya Srinivas <vidya.srini...@intel.com>
---
drivers/gpu/drm/i915/intel_sprite.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/drivers/gpu/drm/i915/intel_sprite.c
b/drivers/gpu/drm/i915/intel_sprite.c
index d5dad44..68a4344 100644
--- a/drivers/gpu/drm/i915/intel_sprite.c
+++ b/drivers/gpu/drm/i915/intel_sprite.c
@@ -261,6 +261,8 @@ skl_update_plane(struct intel_plane *plane,
crtc_w--;
crtc_h--;
+ DRM_ERROR("%x, %d %d %d %d\n", fb->format->format, src_w, src_h,
crtc_w, crtc_h);
+
spin_lock_irqsave(&dev_priv->uncore.lock, irqflags);
if (INTEL_GEN(dev_priv) >= 10 || IS_GEMINILAKE(dev_priv))
@@ -1015,6 +1017,9 @@ intel_check_sprite_plane(struct intel_plane *plane,
crtc_w = drm_rect_width(dst);
crtc_h = drm_rect_height(dst);
+ if (fb->format->format == DRM_FORMAT_NV12)
+ goto check_plane_surface;
+
if (state->base.visible) {
/* check again in case clipping clamped the results */
hscale = drm_rect_calc_hscale(src, dst, min_scale, max_scale);
@@ -1112,6 +1117,7 @@ intel_check_sprite_plane(struct intel_plane *plane,
dst->y1 = crtc_y;
dst->y2 = crtc_y + crtc_h;
+check_plane_surface:
if (INTEL_GEN(dev_priv) >= 9) {
ret = skl_check_plane_surface(crtc_state, state);
if (ret)
--
2.7.4
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