[AMD Official Use Only]
Hi Arthur,
Can you try to blacklist amdgpu module first and then do manual driver loading?
Hope via that you can have a chance to observe the errors reported by driver.
BR
Evan
> -----Original Message-----
> From: Arthur Marsh <arthur.marsh@xxxxxxxxxxxxxxxx>
> Sent: Thursday, March 31, 2022 12:27 PM
> To: Quan, Evan <Evan.Quan@xxxxxxx>
> Cc: Deucher, Alexander <Alexander.Deucher@xxxxxxx>; Koenig, Christian
> <Christian.Koenig@xxxxxxx>; Feng, Kenneth <Kenneth.Feng@xxxxxxx>;
> Lazar, Lijo <Lijo.Lazar@xxxxxxx>; amd-gfx@xxxxxxxxxxxxxxxxxxxxx;
> arthur.marsh@xxxxxxxxxxxxxxxx
> Subject: [PATCH V4 17/17] drm/amd/pm: unified lock protections in
> amdgpu_dpm.c
>
> Hi Evan, even with the patch below applied and built, I was still getting no
> signal to the monitor upon loading of the amdgpu module and no response
> from the pc except when giving the magic sysreq boot key sequence.
>
> .config has:
>
> CONFIG_DRM_AMDGPU=m
> CONFIG_DRM_AMDGPU_SI=y
> # CONFIG_DRM_AMDGPU_CIK is not set
> # CONFIG_DRM_AMDGPU_USERPTR is not set
>
> kernel command line has:
>
> amdgpu.audio=1 amdgpu.si_support=1 radeon.si_support=0
> page_owner=on amdgpu.gpu_recovery=1
>
>
> diff --git a/drivers/gpu/drm/amd/pm/amdgpu_dpm.c
> b/drivers/gpu/drm/amd/pm/amdgpu_dpm.c
> index 89fbee568be4..d7dc9c5b3df9 100644
> --- a/drivers/gpu/drm/amd/pm/amdgpu_dpm.c
> +++ b/drivers/gpu/drm/amd/pm/amdgpu_dpm.c
> @@ -80,8 +80,6 @@ int amdgpu_dpm_set_powergating_by_smu(struct
> amdgpu_device *adev, uint32_t block
> return 0;
> }
>
> - mutex_lock(&adev->pm.mutex);
> -
> switch (block_type) {
> case AMD_IP_BLOCK_TYPE_UVD:
> case AMD_IP_BLOCK_TYPE_VCE:
> @@ -102,8 +100,6 @@ int amdgpu_dpm_set_powergating_by_smu(struct
> amdgpu_device *adev, uint32_t block
> if (!ret)
> atomic_set(&adev->pm.pwr_state[block_type], pwr_state);
>
> - mutex_unlock(&adev->pm.mutex);
> -
> return ret;
> }
>
>
> Regards,
>
> Arthur Marsh.
