From c2359c6d7f4d495e2e17098d809d5c57f0963ada Mon Sep 17 00:00:00 2001 From: Nicholas Kazlauskas Date: Tue, 23 Jan 2024 12:14:42 -0500 Subject: drm/amd/display: Disable timeout in more places for dc_dmub_srv [Why] We're still missing a few and we'd like to avoid continuining when a hang occurs for debug purposes. [How] Add the loop anywhere we try to wait on rptr == wptr in dc_dmub_srv. Reviewed-by: Ovidiu Bunea Acked-by: Hamza Mahfooz Signed-off-by: Nicholas Kazlauskas Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c | 13 ++++++++++--- 1 file changed, 10 insertions(+), 3 deletions(-) (limited to 'drivers/gpu') diff --git a/drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c b/drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c index 0ccdc0c979a1..838c43b74662 100644 --- a/drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c +++ b/drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c @@ -74,7 +74,10 @@ void dc_dmub_srv_wait_idle(struct dc_dmub_srv *dc_dmub_srv) struct dc_context *dc_ctx = dc_dmub_srv->ctx; enum dmub_status status; - status = dmub_srv_wait_for_idle(dmub, 100000); + do { + status = dmub_srv_wait_for_idle(dmub, 100000); + } while (dc_dmub_srv->ctx->dc->debug.disable_timeout && status != DMUB_STATUS_OK); + if (status != DMUB_STATUS_OK) { DC_ERROR("Error waiting for DMUB idle: status=%d\n", status); dc_dmub_srv_log_diagnostic_data(dc_dmub_srv); @@ -145,7 +148,9 @@ bool dc_dmub_srv_cmd_list_queue_execute(struct dc_dmub_srv *dc_dmub_srv, if (status == DMUB_STATUS_POWER_STATE_D3) return false; - dmub_srv_wait_for_idle(dmub, 100000); + do { + status = dmub_srv_wait_for_idle(dmub, 100000); + } while (dc_dmub_srv->ctx->dc->debug.disable_timeout && status != DMUB_STATUS_OK); /* Requeue the command. */ status = dmub_srv_cmd_queue(dmub, &cmd_list[i]); @@ -186,7 +191,9 @@ bool dc_dmub_srv_wait_for_idle(struct dc_dmub_srv *dc_dmub_srv, // Wait for DMUB to process command if (wait_type != DM_DMUB_WAIT_TYPE_NO_WAIT) { - status = dmub_srv_wait_for_idle(dmub, 100000); + do { + status = dmub_srv_wait_for_idle(dmub, 100000); + } while (dc_dmub_srv->ctx->dc->debug.disable_timeout && status != DMUB_STATUS_OK); if (status != DMUB_STATUS_OK) { DC_LOG_DEBUG("No reply for DMUB command: status=%d\n", status); -- cgit