[PATCH] drm/amdgpu: disable runtime pm on several sienna cichlid cards

[Lazar, Lijo]

On 4/27/2022 3:41 PM, Guchun Chen wrote:
> Disable runtime power management on several sienna cichlid
> cards, otherwise SMU will possibly fail to be resumed from
> runtime suspend. Will drop this after a clean solution between
> kernel driver and SMU FW is available.
> 
> amdgpu 0000:63:00.0: amdgpu: GECC is enabled
> amdgpu 0000:63:00.0: amdgpu: SECUREDISPLAY: securedisplay ta ucode is not available
> amdgpu 0000:63:00.0: amdgpu: SMU is resuming...
> amdgpu 0000:63:00.0: amdgpu: SMU: I'm not done with your command: SMN_C2PMSG_66:0x0000000E SMN_C2PMSG_82:0x00000080
> amdgpu 0000:63:00.0: amdgpu: Failed to SetDriverDramAddr!
> amdgpu 0000:63:00.0: amdgpu: Failed to setup smc hw!
> [drm:amdgpu_device_ip_resume_phase2 [amdgpu]] *ERROR* resume of IP block <smu> failed -62
> amdgpu 0000:63:00.0: amdgpu: amdgpu_device_ip_resume failed (-62)
> 
> Signed-off-by: Guchun Chen <guchun.chen at amd.com>
> ---
>   drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c | 9 +++++++++
>   1 file changed, 9 insertions(+)
> 
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
> index 262938f0dfdb..9c483787c0ca 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
> @@ -180,6 +180,15 @@ int amdgpu_driver_load_kms(struct amdgpu_device *adev, unsigned long flags)
>   		 */
>   		if (adev->is_fw_fb)
>   			adev->runpm = false;
> +
> +		/*
> +		 * Add below quirk on several sienna_cichlid cards to disable
> +		 * runtime pm to fix EMI failures.
> +		 */
> +		if (((adev->pdev->device == 0x73A1) && (adev->pdev->revision == 0x00)) ||
> +		    ((adev->pdev->device == 0x73BF) && (adev->pdev->revision == 0xCF)))
> +			adev->runpm = false;
> +

Separate to amdgpu_runtime_pm_quirk()?

Thanks,
Lijo

>   		if (adev->runpm)
>   			dev_info(adev->dev, "Using BACO for runtime pm\n");
>   	}
>