[Intel-gfx] [PATCH v3 3/3] drm/i915/display/psr: Do full fetch when handling biplanar formats

[José Roberto de Souza]

From: Gwan-gyeong Mun <gwan-gyeong.mun at intel.com>

We are still missing the PSR2 selective fetch handling of biplanar
formats but until proper handle is added we can workaround it by
doing full frames fetch when state has biplanar formats.

We need the second check because an update in a regular format could
intersect with a biplanar plane that was not initialy part of the
atomic commit.

Signed-off-by: Gwan-gyeong Mun <gwan-gyeong.mun at intel.com>
Signed-off-by: José Roberto de Souza <jose.souza at intel.com>
---
 drivers/gpu/drm/i915/display/intel_psr.c | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/display/intel_psr.c b/drivers/gpu/drm/i915/display/intel_psr.c
index 8ceb22c5a1a6b..e6a4c27975d8c 100644
--- a/drivers/gpu/drm/i915/display/intel_psr.c
+++ b/drivers/gpu/drm/i915/display/intel_psr.c
@@ -1601,9 +1601,13 @@ int intel_psr2_sel_fetch_update(struct intel_atomic_state *state,
 		 * TODO: Not clear how to handle planes with negative position,
 		 * also planes are not updated if they have a negative X
 		 * position so for now doing a full update in this cases
+		 *
+		 * TODO: We are missing biplanar formats handling, until it is
+		 * implemented it will send full frame updates.
 		 */
 		if (new_plane_state->uapi.dst.y1 < 0 ||
-		    new_plane_state->uapi.dst.x1 < 0) {
+		    new_plane_state->uapi.dst.x1 < 0 ||
+		    new_plane_state->hw.fb->format->is_yuv) {
 			full_update = true;
 			break;
 		}
@@ -1682,6 +1686,11 @@ int intel_psr2_sel_fetch_update(struct intel_atomic_state *state,
 		if (!drm_rect_intersect(&inter, &new_plane_state->uapi.dst))
 			continue;
 
+		if (new_plane_state->hw.fb->format->is_yuv) {
+			full_update = true;
+			break;
+		}
+
 		sel_fetch_area = &new_plane_state->psr2_sel_fetch_area;
 		sel_fetch_area->y1 = inter.y1 - new_plane_state->uapi.dst.y1;
 		sel_fetch_area->y2 = inter.y2 - new_plane_state->uapi.dst.y1;
-- 
2.33.0