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[AMD Official Use Only]
Reviewed-by: Kevin Yang <kevinyang.wang@xxxxxxx>
Best Regards,
Kevin
From: amd-gfx <amd-gfx-bounces@xxxxxxxxxxxxxxxxxxxxx> on behalf of Lijo Lazar <lijo.lazar@xxxxxxx>
Sent: Friday, November 26, 2021 1:25 PM To: amd-gfx@xxxxxxxxxxxxxxxxxxxxx <amd-gfx@xxxxxxxxxxxxxxxxxxxxx> Cc: Deucher, Alexander <Alexander.Deucher@xxxxxxx>; Limonciello, Mario <Mario.Limonciello@xxxxxxx>; Zhang, Hawking <Hawking.Zhang@xxxxxxx> Subject: [PATCH v2] 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@xxxxxxx> --- drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) 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) { /* -- 2.25.1 |
