[PATCH 22/25] drm/amd/display: Introduce flag for disabling Replay desync recovery

[Hersen Wu]

From: Dennis Chan <Dennis.Chan at amd.com>

[why]
It's useful to disable the recovery mechanism when debugging replay
desync errors.

Signed-off-by: Dennis Chan <Dennis.Chan at amd.com>
Acked-by: Hersen Wu <hersenxs.wu at amd.com>
Reviewed-by: Robin Chen <robin.chen at amd.com>
---
 drivers/gpu/drm/amd/display/dc/dc_types.h                      | 3 ++-
 .../drm/amd/display/dc/link/protocols/link_dp_irq_handler.c    | 3 +++
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/display/dc/dc_types.h b/drivers/gpu/drm/amd/display/dc/dc_types.h
index 40dc51853d62..bb159b6b1b76 100644
--- a/drivers/gpu/drm/amd/display/dc/dc_types.h
+++ b/drivers/gpu/drm/amd/display/dc/dc_types.h
@@ -1037,7 +1037,8 @@ struct replay_config {
 	bool replay_smu_opt_supported;                  // SMU optimization is supported
 	unsigned int replay_enable_option;              // Replay enablement option
 	uint32_t debug_flags;                           // Replay debug flags
-	bool replay_timing_sync_supported;             // Replay desync is supported
+	bool replay_timing_sync_supported; // Replay desync is supported
+	bool force_disable_desync_error_check;             // Replay desync is supported
 	union replay_error_status replay_error_status; // Replay error status
 };
 
diff --git a/drivers/gpu/drm/amd/display/dc/link/protocols/link_dp_irq_handler.c b/drivers/gpu/drm/amd/display/dc/link/protocols/link_dp_irq_handler.c
index 34bf8a9ef738..fc14c3644144 100644
--- a/drivers/gpu/drm/amd/display/dc/link/protocols/link_dp_irq_handler.c
+++ b/drivers/gpu/drm/amd/display/dc/link/protocols/link_dp_irq_handler.c
@@ -190,6 +190,9 @@ static bool handle_hpd_irq_replay_sink(struct dc_link *link)
 	/*AMD Replay version reuse DP_PSR_ERROR_STATUS for REPLAY_ERROR status.*/
 	union psr_error_status replay_error_status;
 
+	if (link->replay_settings.config.force_disable_desync_error_check)
+		return true;
+
 	if (!link->replay_settings.replay_feature_enabled)
 		return false;
 
-- 
2.25.1