[PATCH] drm/amdgpu: For sriov reset, move IB test into exclusive mode

[Christian König]

At least of hand sounds like it makes sense. But one comment below.

Am 26.04.2018 um 04:06 schrieb Deng, Emily:
> Ping...
>
>> -----Original Message-----
>> From: Emily Deng [mailto:Emily.Deng at amd.com]
>> Sent: Wednesday, April 25, 2018 11:26 AM
>> To: amd-gfx at lists.freedesktop.org
>> Cc: Deng, Emily <Emily.Deng at amd.com>
>> Subject: [PATCH] drm/amdgpu: For sriov reset, move IB test into exclusive
>> mode
>>
>> When put the IB test out of exclusive mode, and do sriov reset, the IB test
>> will randomly fail. As out of exclusive mode it uses kiq to do read and write
>> registers, but as it has world switch, the kiq read and write time will be
>> random, sometimes it will beyond the MAX_KIQ_REG_WAIT and then the
>> read or write register will fail, which will result the IB test fail. So move the

Looks like your commit message was cut of.

With that fixed the patch is Reviewed-by: Christian König 
<christian.koenig at amd.com>.

Regards,
Christian.

>>
>> Signed-off-by: Emily Deng <Emily.Deng at amd.com>
>> ---
>>   drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 5 ++---
>>   1 file changed, 2 insertions(+), 3 deletions(-)
>>
>> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
>> b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
>> index 211f1af..dc921d6 100644
>> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
>> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
>> @@ -3156,20 +3156,19 @@ static int amdgpu_device_reset_sriov(struct
>> amdgpu_device *adev,
>>
>>   	/* now we are okay to resume SMC/CP/SDMA */
>>   	r = amdgpu_device_ip_reinit_late_sriov(adev);
>> -	amdgpu_virt_release_full_gpu(adev, true);
>>   	if (r)
>>   		goto error;
>>
>>   	amdgpu_irq_gpu_reset_resume_helper(adev);
>>   	r = amdgpu_ib_ring_tests(adev);
>>
>> +error:
>> +	amdgpu_virt_release_full_gpu(adev, true);
>>   	if (!r && adev->virt.gim_feature &
>> AMDGIM_FEATURE_GIM_FLR_VRAMLOST) {
>>   		atomic_inc(&adev->vram_lost_counter);
>>   		r = amdgpu_device_handle_vram_lost(adev);
>>   	}
>>
>> -error:
>> -
>>   	return r;
>>   }
>>
>> --
>> 2.7.4
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