> -----Original Message-----
> From: amd-gfx [mailto:amd-gfx-boun...@lists.freedesktop.org] On Behalf
> Of Monk Liu
> Sent: Wednesday, February 08, 2017 4:27 AM
> To: amd-gfx@lists.freedesktop.org
> Cc: Liu, Monk
> Subject: [PATCH 09/11] drm/amdgpu:imple ring clear
>
> we can use it clear ring buffer instead of fullfill
> 0, which is not correct for engine
>
> Change-Id: I89dcd7b6c4de558f9b2860209a2739c7d4af262d
> Signed-off-by: Monk Liu <monk....@amd.com>
Reviewed-by: Alex Deucher <alexander.deuc...@amd.com>
> ---
> drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h | 7 +++++++
> 1 file changed, 7 insertions(+)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h
> b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h
> index 0e57b04..3fd4ce8 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h
> @@ -186,5 +186,12 @@ int amdgpu_ring_init(struct amdgpu_device *adev,
> struct amdgpu_ring *ring,
> unsigned ring_size, struct amdgpu_irq_src *irq_src,
> unsigned irq_type);
> void amdgpu_ring_fini(struct amdgpu_ring *ring);
> +static inline void amdgpu_ring_clear_ring(struct amdgpu_ring *ring)
> +{
> + int i = 0;
> + while (i <= ring->ptr_mask)
> + ring->ring[i++] = ring->funcs->nop;
> +
> +}
>
> #endif
> --
> 2.7.4
>
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