Re: [PATCH 2/4] drm/amdgpu: Support new arcturus mtype

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Am 27.08.19 um 01:07 schrieb Kuehling, Felix:
> From: Oak Zeng <Oak.Zeng@xxxxxxx>
>
> Arcturus repurposed mtype WC to RW. Modify gmc functions
> to support the new mtype
>
> Change-Id: Idc338e5386a57020f45262025e2664ab4ba9f291
> Signed-off-by: Oak Zeng <Oak.Zeng@xxxxxxx>

Reviewed-by: Christian König <christian.koenig@xxxxxxx>

> ---
>   drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c     | 3 +++
>   drivers/gpu/drm/amd/include/vega10_enum.h | 1 +
>   2 files changed, 4 insertions(+)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
> index f77138ba41f6..7aa365cd8d1d 100644
> --- a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
> +++ b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
> @@ -603,6 +603,9 @@ static uint64_t gmc_v9_0_get_vm_pte_flags(struct amdgpu_device *adev,
>   	case AMDGPU_VM_MTYPE_WC:
>   		pte_flag |= AMDGPU_PTE_MTYPE_VG10(MTYPE_WC);
>   		break;
> +	case AMDGPU_VM_MTYPE_RW:
> +		pte_flag |= AMDGPU_PTE_MTYPE_VG10(MTYPE_RW);
> +		break;
>   	case AMDGPU_VM_MTYPE_CC:
>   		pte_flag |= AMDGPU_PTE_MTYPE_VG10(MTYPE_CC);
>   		break;
> diff --git a/drivers/gpu/drm/amd/include/vega10_enum.h b/drivers/gpu/drm/amd/include/vega10_enum.h
> index c14ba65a2415..adf1b754666e 100644
> --- a/drivers/gpu/drm/amd/include/vega10_enum.h
> +++ b/drivers/gpu/drm/amd/include/vega10_enum.h
> @@ -1037,6 +1037,7 @@ TCC_CACHE_POLICY_STREAM                  = 0x00000001,
>   typedef enum MTYPE {
>   MTYPE_NC                                 = 0x00000000,
>   MTYPE_WC                                 = 0x00000001,
> +MTYPE_RW                                 = 0x00000001,
>   MTYPE_CC                                 = 0x00000002,
>   MTYPE_UC                                 = 0x00000003,
>   } MTYPE;

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