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| author | Lijo Lazar <lijo.lazar@amd.com> | 2021-11-25 19:45:42 +0800 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2021-12-01 16:03:13 -0500 |
| commit | 85c1b9bd13b0b298bbbf128e26a470ec54c4d0e3 (patch) | |
| tree | ec759ee8519d8b1583c1f552e4f6292328431026 | |
| parent | 700de2c8aadcae459a4db19b943962e709df45f2 (diff) | |
| download | linux-stable-85c1b9bd13b0b298bbbf128e26a470ec54c4d0e3.tar.gz linux-stable-85c1b9bd13b0b298bbbf128e26a470ec54c4d0e3.tar.bz2 linux-stable-85c1b9bd13b0b298bbbf128e26a470ec54c4d0e3.zip | |
drm/amd/pm: Add warning for unexpected PG requests
v1: Ideally power gate/ungate requests shouldn't come when smu block is
uninitialized. Add a WARN message to check the origins if such a thing
ever happens.
v2: Use dev_WARN to log device info (Felix/Guchun).
Signed-off-by: Lijo Lazar <lijo.lazar@amd.com>
Reviewed-by: Guchun Chen <guchun.chen@amd.com>
Reviewed-by: Kevin Yang <kevinyang.wang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
| -rw-r--r-- | drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c b/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c index e156add7b560..ea99afb38d2b 100644 --- a/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c +++ b/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c @@ -277,8 +277,12 @@ static int smu_dpm_set_power_gate(void *handle, struct smu_context *smu = handle; int ret = 0; - if (!smu->pm_enabled || !smu->adev->pm.dpm_enabled) + if (!smu->pm_enabled || !smu->adev->pm.dpm_enabled) { + dev_WARN(smu->adev->dev, + "SMU uninitialized but power %s requested for %u!\n", + gate ? "gate" : "ungate", block_type); return -EOPNOTSUPP; + } switch (block_type) { /* |