[PATCH] drm/i915/psr: Prevent Panel Replay if CRC calculation is enabled

Jouni Högander jouni.hogander at intel.com
Mon Aug 19 09:25:49 UTC 2024


Similarly as for PSR2 CRC calculation seems to timeout when Panel Replay is
enabled. Fix this by falling back to PSR if CRC calculation is enabled.

Closes: https://gitlab.freedesktop.org/drm/xe/kernel/-/issues/2266
Signed-off-by: Jouni Högander <jouni.hogander at intel.com>
---
 drivers/gpu/drm/i915/display/intel_psr.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/gpu/drm/i915/display/intel_psr.c b/drivers/gpu/drm/i915/display/intel_psr.c
index 9cb1cdaaeefa7..572dcdf77453c 100644
--- a/drivers/gpu/drm/i915/display/intel_psr.c
+++ b/drivers/gpu/drm/i915/display/intel_psr.c
@@ -1586,6 +1586,12 @@ _panel_replay_compute_config(struct intel_dp *intel_dp,
 	if (!alpm_config_valid(intel_dp, crtc_state, true))
 		return false;
 
+	if (crtc_state->crc_enabled) {
+		drm_dbg_kms(&i915->drm,
+			    "Panel Replay not enabled because it would inhibit pipe CRC calculation\n");
+		return false;
+	}
+
 	return true;
 }
 
-- 
2.34.1



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