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path: root/drivers/gpu/drm/vmwgfx
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Diffstat (limited to 'drivers/gpu/drm/vmwgfx')
-rw-r--r--drivers/gpu/drm/vmwgfx/vmwgfx_kms.c11
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
index bea0abc3d418..5fd0ccaa0b41 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
@@ -832,10 +832,21 @@ int vmw_du_primary_plane_atomic_check(struct drm_plane *plane,
{
struct drm_plane_state *new_state = drm_atomic_get_new_plane_state(state,
plane);
+ struct drm_plane_state *old_state = drm_atomic_get_old_plane_state(state,
+ plane);
struct drm_crtc_state *crtc_state = NULL;
struct drm_framebuffer *new_fb = new_state->fb;
+ struct drm_framebuffer *old_fb = old_state->fb;
int ret;
+ /*
+ * Ignore damage clips if the framebuffer attached to the plane's state
+ * has changed since the last plane update (page-flip). In this case, a
+ * full plane update should happen because uploads are done per-buffer.
+ */
+ if (old_fb != new_fb)
+ new_state->ignore_damage_clips = true;
+
if (new_state->crtc)
crtc_state = drm_atomic_get_new_crtc_state(state,
new_state->crtc);