[0001-increase-time-out-2s-send-msg-to-smu.patch] drm/amd/pm: increase time out value when sending msg to SMU

charles sun charles.sun at amd.com
Thu Apr 8 03:32:34 UTC 2021


when do S3 stress, low rate that PowerUpVcn message will get response
more than 1s, so here increase the timeout to 2s

Signed-off-by: Alex Deucher <alexander.deucher at amd.com>
---
 drivers/gpu/drm/amd/pm/swsmu/smu_cmn.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu_cmn.c b/drivers/gpu/drm/amd/pm/swsmu/smu_cmn.c
index b725f263092b..dc7d2e71aa6f 100644
--- a/drivers/gpu/drm/amd/pm/swsmu/smu_cmn.c
+++ b/drivers/gpu/drm/amd/pm/swsmu/smu_cmn.c
@@ -79,7 +79,7 @@ static void smu_cmn_read_arg(struct smu_context *smu,
 int smu_cmn_wait_for_response(struct smu_context *smu)
 {
 	struct amdgpu_device *adev = smu->adev;
-	uint32_t cur_value, i, timeout = adev->usec_timeout * 10;
+	uint32_t cur_value, i, timeout = adev->usec_timeout * 20;
 
 	for (i = 0; i < timeout; i++) {
 		cur_value = RREG32_SOC15(MP1, 0, mmMP1_SMN_C2PMSG_90);
-- 
2.25.1



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