[PATCH 13/13] drm/amdgpu: new queue policy, take first 2 queues of each pipe

[Edward O'Callaghan]

This series is,
Reviewed-by: Edward O'Callaghan <funfunctor at folklore1984.net>

On 02/04/2017 03:51 PM, Andres Rodriguez wrote:
> Instead of taking the first pipe and givint the rest to kfd, take the

s/givint/giving/

> first 2 queues of each pipe.
> 
> Effectively, amdgpu and amdkfd own the same number of queues. But
> because the queues are spread over multiple pipes the hardware will be
> able to better handle concurrent compute workloads.
> 
> amdgpu goes from 1 pipe to 4 pipes, i.e. from 1 compute threads to 4
> amdkfd goes from 3 pipe to 4 pipes, i.e. from 3 compute threads to 4
> 
> Signed-off-by: Andres Rodriguez <andresx7 at gmail.com>
> ---
>  drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c | 2 +-
>  drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c | 2 +-
>  2 files changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c
> index 2218b65..da28174 100644
> --- a/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c
> +++ b/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c
> @@ -2810,7 +2810,7 @@ static void gfx_v7_0_compute_queue_acquire(struct amdgpu_device *adev)
>  			break;
>  
>  		/* policy: amdgpu owns all queues in the first pipe */
> -		if (mec == 0 && pipe == 0)
> +		if (mec == 0 && queue < 2)
>  			set_bit(i, adev->gfx.mec.queue_bitmap);
>  	}
>  
> diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
> index 04b4448..0a16cab 100644
> --- a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
> +++ b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
> @@ -1436,7 +1436,7 @@ static void gfx_v8_0_compute_queue_acquire(struct amdgpu_device *adev)
>  			break;
>  
>  		/* policy: amdgpu owns all queues in the first pipe */
> -		if (mec == 0 && pipe == 0)
> +		if (mec == 0 && queue < 2)
>  			set_bit(i, adev->gfx.mec.queue_bitmap);
>  	}
>  
> 

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