korg/linux
0
0
Fork 0
mirror of https://mirrors.bfsu.edu.cn/git/linux.git synced 2025-01-04 04:44:37 +08:00
Code Issues Packages Projects Releases Wiki Activity

drm/amd/display: reset dcn31 SMU mailbox on failures

Browse Source 
commit 83293f7f3d upstream.

Otherwise future commands may fail as well leading to downstream
problems that look like they stemmed from a timeout the first time
but really didn't.

Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Mario Limonciello 2022-01-07 15:40:10 -06:00 committed by Greg Kroah-Hartman
parent 8a17a077e7
commit f71c91ed1d
1 changed files with 6 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
drivers/gpu/drm/amd/display/dc/clk_mgr/dcn31/dcn31_smu.c
View File

@ -119,6 +119,12 @@ int dcn31_smu_send_msg_with_param(
result = dcn31_smu_wait_for_response(clk_mgr, 10, 200000);
if (result == VBIOSSMC_Result_Failed) {
ASSERT(0);
REG_WRITE(MP1_SMN_C2PMSG_91, VBIOSSMC_Result_OK);
return -1;
}
if (IS_SMU_TIMEOUT(result)) {
ASSERT(0);
dm_helpers_smu_timeout(CTX, msg_id, param, 10 * 200000);