[Intel-gfx] [PATCH 02/12] drm/i915/fbc: Use the correct plane stride

[Ville Syrjala]

From: Ville Syrjälä <ville.syrjala at linux.intel.com>

Consult the actual plane stride instead of the fb stride. The two
will disagree when we remap the gtt. The plane stride is what the
hw will be fed so that's what we should look at for the FBC
retrictions/cfb allocation.

Since we no longer require a fence we are going to attempt using
FBC with remapping, and so we should look at correct stride.

Cc: José Roberto de Souza <jose.souza at intel.com>
Fixes: 691f7ba58d52 ("drm/i915/display/fbc: Make fences a nice-to-have for GEN9+")
Signed-off-by: Ville Syrjälä <ville.syrjala at linux.intel.com>
---
 drivers/gpu/drm/i915/display/intel_fbc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/display/intel_fbc.c b/drivers/gpu/drm/i915/display/intel_fbc.c
index 7194f9bc62c5..192c5ff142ee 100644
--- a/drivers/gpu/drm/i915/display/intel_fbc.c
+++ b/drivers/gpu/drm/i915/display/intel_fbc.c
@@ -707,8 +707,8 @@ static void intel_fbc_update_state_cache(struct intel_crtc *crtc,
 	cache->plane.pixel_blend_mode = plane_state->hw.pixel_blend_mode;
 
 	cache->fb.format = fb->format;
-	cache->fb.stride = fb->pitches[0];
 	cache->fb.modifier = fb->modifier;
+	cache->fb.stride = plane_state->color_plane[0].stride;
 
 	drm_WARN_ON(&dev_priv->drm, plane_state->flags & PLANE_HAS_FENCE &&
 		    !plane_state->vma->fence);
-- 
2.24.1