[PATCH] drm/amd/amdgpu: Support VM environments in amdgpu_ttm_access_memory()

[Deucher, Alexander]

> -----Original Message-----
> From: amd-gfx [mailto:amd-gfx-bounces at lists.freedesktop.org] On Behalf
> Of Tom St Denis
> Sent: Thursday, September 14, 2017 8:59 AM
> To: amd-gfx at lists.freedesktop.org
> Cc: StDenis, Tom
> Subject: [PATCH] drm/amd/amdgpu: Support VM environments in
> amdgpu_ttm_access_memory()
> 
> Signed-off-by: Tom St Denis <tom.stdenis at amd.com>

Reviewed-by: Alex Deucher <alexander.deucher at amd.com>

> ---
>  drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c | 8 ++++----
>  1 file changed, 4 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
> b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
> index b2b11e176667..8ee16dfdb8af 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
> @@ -1201,14 +1201,14 @@ static int amdgpu_ttm_access_memory(struct
> ttm_buffer_object *bo,
>  		}
> 
>  		spin_lock_irqsave(&adev->mmio_idx_lock, flags);
> -		WREG32(mmMM_INDEX, ((uint32_t)aligned_pos) |
> 0x80000000);
> -		WREG32(mmMM_INDEX_HI, aligned_pos >> 31);
> +		WREG32_NO_KIQ(mmMM_INDEX, ((uint32_t)aligned_pos) |
> 0x80000000);
> +		WREG32_NO_KIQ(mmMM_INDEX_HI, aligned_pos >> 31);
>  		if (!write || mask != 0xffffffff)
> -			value = RREG32(mmMM_DATA);
> +			value = RREG32_NO_KIQ(mmMM_DATA);
>  		if (write) {
>  			value &= ~mask;
>  			value |= (*(uint32_t *)buf << shift) & mask;
> -			WREG32(mmMM_DATA, value);
> +			WREG32_NO_KIQ(mmMM_DATA, value);
>  		}
>  		spin_unlock_irqrestore(&adev->mmio_idx_lock, flags);
>  		if (!write) {
> --
> 2.12.0
> 
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