[PATCH 1/4] drm/amdgpu/gmc6: use amdgpu_asic_flush_hdp for gart tlb invalidations

[Christian König]

Am 05.01.2018 um 05:30 schrieb Alex Deucher:
> Use the callback rather than open coding it.
>
> Signed-off-by: Alex Deucher <alexander.deucher at amd.com>

I would rather prefer if the caller of flush_gpu_tlb calls 
amdgpu_asic_flush_hdp().

IIRC we have exactly one which calls this and the other one actually 
wants to call amdgpu_asic_flush_hdp() only.

Regards,
Christian.

> ---
>   drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c
> index 8e28270d1ea9..e47a1ba57aae 100644
> --- a/drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c
> +++ b/drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c
> @@ -359,7 +359,7 @@ static int gmc_v6_0_mc_init(struct amdgpu_device *adev)
>   static void gmc_v6_0_gart_flush_gpu_tlb(struct amdgpu_device *adev,
>   					uint32_t vmid)
>   {
> -	WREG32(mmHDP_MEM_COHERENCY_FLUSH_CNTL, 0);
> +	amdgpu_asic_flush_hdp(adev);
>   
>   	WREG32(mmVM_INVALIDATE_REQUEST, 1 << vmid);
>   }