* [PATCH] drm/amd/display: reset dcn31 SMU mailbox on failures
@ 2022-01-07 21:40 Mario Limonciello
2022-01-07 22:05 ` Kazlauskas, Nicholas
0 siblings, 1 reply; 2+ messages in thread
From: Mario Limonciello @ 2022-01-07 21:40 UTC (permalink / raw)
To: amd-gfx; +Cc: Mario Limonciello
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>
---
drivers/gpu/drm/amd/display/dc/clk_mgr/dcn31/dcn31_smu.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn31/dcn31_smu.c b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn31/dcn31_smu.c
index 8c2b77eb9459..162ae7186124 100644
--- a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn31/dcn31_smu.c
+++ b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn31/dcn31_smu.c
@@ -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);
--
2.25.1
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH] drm/amd/display: reset dcn31 SMU mailbox on failures
2022-01-07 21:40 [PATCH] drm/amd/display: reset dcn31 SMU mailbox on failures Mario Limonciello
@ 2022-01-07 22:05 ` Kazlauskas, Nicholas
0 siblings, 0 replies; 2+ messages in thread
From: Kazlauskas, Nicholas @ 2022-01-07 22:05 UTC (permalink / raw)
To: Mario Limonciello, amd-gfx
On 2022-01-07 4:40 p.m., Mario Limonciello wrote:
> 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>
I guess we used to do this but after we started adding the
wait_for_response prior to sending the command this was ignored.
Should be fine.
Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Regards,
Nicholas Kazlauskas
> ---
> drivers/gpu/drm/amd/display/dc/clk_mgr/dcn31/dcn31_smu.c | 6 ++++++
> 1 file changed, 6 insertions(+)
>
> diff --git a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn31/dcn31_smu.c b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn31/dcn31_smu.c
> index 8c2b77eb9459..162ae7186124 100644
> --- a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn31/dcn31_smu.c
> +++ b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn31/dcn31_smu.c
> @@ -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);
^ permalink raw reply [flat|nested] 2+ messages in thread
end of thread, other threads:[~2022-01-07 22:06 UTC | newest]
Thread overview: 2+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2022-01-07 21:40 [PATCH] drm/amd/display: reset dcn31 SMU mailbox on failures Mario Limonciello
2022-01-07 22:05 ` Kazlauskas, Nicholas
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.