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

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@intel.com>
Reviewed-by: Mika Kahola <mika.kahola@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240819092549.1298233-1-jouni.hogander@intel.com

diff --git a/drivers/gpu/drm/i915/display/intel_psr.c b/drivers/gpu/drm/i915/display/intel_psr.c
index 9cb1cdaaeefa7ded758cd74d1c02fa8eb0d96c97..572dcdf77453cbecf409de9229614481a7e867cc 100644 (file)
--- 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;
 }