[PATCH 04/18] drm/amdgpu/sriov:don't load psp fw during gpu reset

[Quan, Evan]

Hi Monk,

I think your change affects barematal case. Per my confirmation, vega10 cannot boot with the change applied.
If the change is only intended to cover gpu reset case of sriov, maybe the logic should be
If (!(amdgpu_sriov_vf(adev) && adev->in_sriov_reset))

Regards,
Evan
>-----Original Message-----
>From: amd-gfx [mailto:amd-gfx-bounces at lists.freedesktop.org] On Behalf Of Christian
>K?nig
>Sent: Monday, September 18, 2017 5:06 PM
>To: Liu, Monk <Monk.Liu at amd.com>; amd-gfx at lists.freedesktop.org
>Subject: Re: [PATCH 04/18] drm/amdgpu/sriov:don't load psp fw during gpu reset
>
>Am 18.09.2017 um 08:11 schrieb Monk Liu:
>> At least for SRIOV we found reload PSP fw during
>> gpu reset cause PSP hang.
>>
>> Change-Id: I5f273187a10bb8571b77651dfba7656ce0429af0
>> Signed-off-by: Monk Liu <Monk.Liu at amd.com>
>
>Acked-by: Christian König <christian.koenig at amd.com>
>
>> ---
>>   drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c | 15 +++++++++------
>>   1 file changed, 9 insertions(+), 6 deletions(-)
>>
>> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
>b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
>> index 8a1ee97..4eee2ef 100644
>> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
>> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
>> @@ -253,15 +253,18 @@ static int psp_asd_load(struct psp_context *psp)
>>
>>   static int psp_hw_start(struct psp_context *psp)
>>   {
>> +	struct amdgpu_device *adev = psp->adev;
>>   	int ret;
>>
>> -	ret = psp_bootloader_load_sysdrv(psp);
>> -	if (ret)
>> -		return ret;
>> +	if (amdgpu_sriov_vf(adev) && !adev->in_sriov_reset) {
>> +		ret = psp_bootloader_load_sysdrv(psp);
>> +		if (ret)
>> +			return ret;
>>
>> -	ret = psp_bootloader_load_sos(psp);
>> -	if (ret)
>> -		return ret;
>> +		ret = psp_bootloader_load_sos(psp);
>> +		if (ret)
>> +			return ret;
>> +	}
>>
>>   	ret = psp_ring_create(psp, PSP_RING_TYPE__KM);
>>   	if (ret)
>
>
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