From: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
VLV/CHV sprites use the old plane C layout of the colorkey mask
register. Insted of 8 bit masks for each RGB component in the
lower bits, the register only has the per channel src key enable
bits. On g4x+ sprites those bits are 24,25,26 whereas on the
old plane C and VLV/CHV sprites they are bits 0,1,2. Since
userspace assumes the g4x+ layout let's just shift enable
bits down and ignore the full masks.
Signed-off-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
---
drivers/gpu/drm/i915/intel_sprite.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/i915/intel_sprite.c b/drivers/gpu/drm/i915/intel_sprite.c
index 6164c2ca20c3..f6be9b1b9c3a 100644
--- a/drivers/gpu/drm/i915/intel_sprite.c
+++ b/drivers/gpu/drm/i915/intel_sprite.c
@@ -548,7 +548,7 @@ vlv_update_plane(struct intel_plane *plane,
if (key->flags) {
I915_WRITE_FW(SPKEYMINVAL(pipe, plane_id), key->min_value);
I915_WRITE_FW(SPKEYMAXVAL(pipe, plane_id), key->max_value);
- I915_WRITE_FW(SPKEYMSK(pipe, plane_id), key->channel_mask);
+ I915_WRITE_FW(SPKEYMSK(pipe, plane_id), key->channel_mask >> 24);
}
I915_WRITE_FW(SPSTRIDE(pipe, plane_id), fb->pitches[0]);
I915_WRITE_FW(SPPOS(pipe, plane_id), (crtc_y << 16) | crtc_x);
--
2.16.1
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