Re: [PATCH 3/8] drm/amdgpu: add basics for SDMA page queue support

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On Mon, Oct 08, 2018 at 03:35:16PM +0200, Christian König wrote:
> Just the common helper and a new ring in the SDMA instance.
> 
> Signed-off-by: Christian König <christian.koenig@xxxxxxx>

Reviewed-by: Huang Rui <ray.huang@xxxxxxx>

> ---
>  drivers/gpu/drm/amd/amdgpu/amdgpu_sdma.c | 10 ++++------
>  drivers/gpu/drm/amd/amdgpu/amdgpu_sdma.h |  1 +
>  2 files changed, 5 insertions(+), 6 deletions(-)
> 
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_sdma.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_sdma.c
> index bc9244b429ef..0fb9907494bb 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_sdma.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_sdma.c
> @@ -34,11 +34,9 @@ struct amdgpu_sdma_instance * amdgpu_get_sdma_instance(struct amdgpu_ring *ring)
>  	int i;
>  
>  	for (i = 0; i < adev->sdma.num_instances; i++)
> -		if (&adev->sdma.instance[i].ring == ring)
> -			break;
> +		if (ring == &adev->sdma.instance[i].ring ||
> +		    ring == &adev->sdma.instance[i].page)
> +			return &adev->sdma.instance[i];
>  
> -	if (i < AMDGPU_MAX_SDMA_INSTANCES)
> -		return &adev->sdma.instance[i];
> -	else
> -		return NULL;
> +	return NULL;
>  }
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_sdma.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_sdma.h
> index 500113ec65ca..556db42edaed 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_sdma.h
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_sdma.h
> @@ -41,6 +41,7 @@ struct amdgpu_sdma_instance {
>  	uint32_t		feature_version;
>  
>  	struct amdgpu_ring	ring;
> +	struct amdgpu_ring	page;
>  	bool			burst_nop;
>  };
>  
> -- 
> 2.14.1
> 
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