[PATCH 06/21] drm/amd/display: Disable timeout in more places for dc_dmub_srv

[Hamza Mahfooz]

From: Nicholas Kazlauskas <nicholas.kazlaus...@amd.com>

[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 <ovidiu.bu...@amd.com>
Acked-by: Hamza Mahfooz <hamza.mahf...@amd.com>
Signed-off-by: Nicholas Kazlauskas <nicholas.kazlaus...@amd.com>
---
 drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c | 13 ++++++++++---
 1 file changed, 10 insertions(+), 3 deletions(-)

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);
-- 
2.43.0