It is not recommended to have both FBC and PSR2 selective fetch
be enabled at the same time in a plane. If PSR2 selective fetch
or panel replay is on, mark FBC as not possible in that plane.
v2: fix the condition to disable FBC if PSR2 enabled (Jani)
Bspec: 68881
Signed-off-by: Vinod Govindapillai <vinod.govindapillai@xxxxxxxxx>
---
drivers/gpu/drm/i915/display/intel_fbc.c | 9 +++++++--
1 file changed, 7 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/i915/display/intel_fbc.c b/drivers/gpu/drm/i915/display/intel_fbc.c
index 637b8d21ed1d..23e1f7c35d42 100644
--- a/drivers/gpu/drm/i915/display/intel_fbc.c
+++ b/drivers/gpu/drm/i915/display/intel_fbc.c
@@ -1432,9 +1432,14 @@ static int intel_fbc_check_plane(struct intel_atomic_state *state,
* Display 12+ is not supporting FBC with PSR2.
* Recommendation is to keep this combination disabled
* Bspec: 50422 HSD: 14010260002
+ *
+ * In Xe3, PSR2 selective fetch and FBC dirty rect feature cannot
+ * coexist. So if PSR2 selective fetch is supported then mark that
+ * FBC is not supported.
+ * TODO: Need a logic to decide between PSR2 and FBC Dirty rect
*/
- if (IS_DISPLAY_VER(display, 12, 14) && crtc_state->has_sel_update &&
- !crtc_state->has_panel_replay) {
+ if ((IS_DISPLAY_VER(display, 12, 14) || DISPLAY_VER(display) >= 30) &&
+ crtc_state->has_sel_update && !crtc_state->has_panel_replay) {
plane_state->no_fbc_reason = "PSR2 enabled";
return 0;
}
--
2.34.1
