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-rw-r--r--drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c33
1 files changed, 32 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
index bef17c1519d0..9aff329deb88 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -10261,10 +10261,12 @@ static int dm_check_crtc_cursor(struct drm_atomic_state *state,
struct drm_crtc *crtc,
struct drm_crtc_state *new_crtc_state)
{
- struct drm_plane *cursor = crtc->cursor, *underlying;
+ struct drm_plane *cursor = crtc->cursor, *plane, *underlying;
+ struct drm_plane_state *old_plane_state, *new_plane_state;
struct drm_plane_state *new_cursor_state, *new_underlying_state;
int i;
int cursor_scale_w, cursor_scale_h, underlying_scale_w, underlying_scale_h;
+ bool any_relevant_change = false;
/* On DCE and DCN there is no dedicated hardware cursor plane. We get a
* cursor per pipe but it's going to inherit the scaling and
@@ -10272,6 +10274,35 @@ static int dm_check_crtc_cursor(struct drm_atomic_state *state,
* blending properties match the underlying planes'.
*/
+ /* If no plane was enabled or changed scaling, no need to check again */
+ for_each_oldnew_plane_in_state(state, plane, old_plane_state, new_plane_state, i) {
+ int new_scale_w, new_scale_h, old_scale_w, old_scale_h;
+
+ if (!new_plane_state || !new_plane_state->fb || new_plane_state->crtc != crtc)
+ continue;
+
+ if (!old_plane_state || !old_plane_state->fb || old_plane_state->crtc != crtc) {
+ any_relevant_change = true;
+ break;
+ }
+
+ if (new_plane_state->fb == old_plane_state->fb &&
+ new_plane_state->crtc_w == old_plane_state->crtc_w &&
+ new_plane_state->crtc_h == old_plane_state->crtc_h)
+ continue;
+
+ dm_get_plane_scale(new_plane_state, &new_scale_w, &new_scale_h);
+ dm_get_plane_scale(old_plane_state, &old_scale_w, &old_scale_h);
+
+ if (new_scale_w != old_scale_w || new_scale_h != old_scale_h) {
+ any_relevant_change = true;
+ break;
+ }
+ }
+
+ if (!any_relevant_change)
+ return 0;
+
new_cursor_state = drm_atomic_get_plane_state(state, cursor);
if (IS_ERR(new_cursor_state))
return PTR_ERR(new_cursor_state);