From: Dennis Chan Date: Thu, 12 Oct 2023 15:08:25 +0000 (+0800) Subject: drm/amd/display: Revise Replay Desync Error IRQ handle X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=d0ef62bd109c2af3ba8dc16a6d5ad4a0f30e03dc;p=linux.git drm/amd/display: Revise Replay Desync Error IRQ handle [Why] Current Desync IRQ handler will have some potential do not hit the desync error case. We change to check both desync error HPD and DPCD. Signed-off-by: Dennis Chan Acked-by: Hersen Wu Reviewed-by: Robin Chen Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher --- diff --git a/drivers/gpu/drm/amd/display/dc/dc_types.h b/drivers/gpu/drm/amd/display/dc/dc_types.h index bb159b6b1b76..cea666ea66c6 100644 --- a/drivers/gpu/drm/amd/display/dc/dc_types.h +++ b/drivers/gpu/drm/amd/display/dc/dc_types.h @@ -1039,6 +1039,7 @@ struct replay_config { uint32_t debug_flags; // Replay debug flags bool replay_timing_sync_supported; // Replay desync is supported bool force_disable_desync_error_check; // Replay desync is supported + bool received_desync_error_hpd; //Replay Received Desync Error HPD. 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 06e829ef48af..0c00e94e90b1 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 @@ -210,6 +210,9 @@ static void handle_hpd_irq_replay_sink(struct dc_link *link) &replay_error_status.raw, sizeof(replay_error_status.raw)); + if (replay_configuration.bits.DESYNC_ERROR_STATUS) + link->replay_settings.config.received_desync_error_hpd = 1; + link->replay_settings.config.replay_error_status.bits.LINK_CRC_ERROR = replay_error_status.bits.LINK_CRC_ERROR; link->replay_settings.config.replay_error_status.bits.DESYNC_ERROR =