On 11/30/2018 03:30 PM, Alex Deucher wrote:
> Use this to track whether an asic supports xgmi rather than
> checking the asic type everywhere.
>
> Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
> ---
> drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.h | 1 +
> drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.c | 4 ++--
> drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c | 2 +-
> drivers/gpu/drm/amd/amdgpu/soc15.c | 3 +++
> 4 files changed, 7 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.h
> index 8c57924c075f..81e6070d255b 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.h
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.h
> @@ -99,6 +99,7 @@ struct amdgpu_xgmi {
> unsigned num_physical_nodes;
> /* gpu list in the same hive */
> struct list_head head;
> + bool supported;
> };
>
> struct amdgpu_gmc {
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.c
> index fb37e69f1bba..f8c86d0593dd 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.c
> @@ -94,9 +94,9 @@ int amdgpu_xgmi_add_device(struct amdgpu_device *adev)
>
> int count = 0, ret = -EINVAL;
>
> - if ((adev->asic_type < CHIP_VEGA20) ||
> - (adev->flags & AMD_IS_APU) )
> + if (!adev->gmc.xgmi.supported)
> return 0;
What about the (adev->flags & AMD_IS_APU) part ?
Andrey
> +
> adev->gmc.xgmi.node_id = psp_xgmi_get_node_id(&adev->psp);
> adev->gmc.xgmi.hive_id = psp_xgmi_get_hive_id(&adev->psp);
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
> index 3a4e5d8d5162..ed3145b2a596 100644
> --- a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
> +++ b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
> @@ -934,7 +934,7 @@ static int gmc_v9_0_sw_init(void *handle)
> }
> adev->need_swiotlb = drm_get_max_iomem() > ((u64)1 << dma_bits);
>
> - if (adev->asic_type == CHIP_VEGA20) {
> + if (adev->gmc.xgmi.supported) {
> r = gfxhub_v1_1_get_xgmi_info(adev);
> if (r)
> return r;
> diff --git a/drivers/gpu/drm/amd/amdgpu/soc15.c b/drivers/gpu/drm/amd/amdgpu/soc15.c
> index 83624e150ca7..8849b74078d6 100644
> --- a/drivers/gpu/drm/amd/amdgpu/soc15.c
> +++ b/drivers/gpu/drm/amd/amdgpu/soc15.c
> @@ -507,6 +507,9 @@ int soc15_set_ip_blocks(struct amdgpu_device *adev)
> return -EINVAL;
> }
>
> + if (adev->asic_type == CHIP_VEGA20)
> + adev->gmc.xgmi.supported = true;
> +
> if (adev->flags & AMD_IS_APU)
> adev->nbio_funcs = &nbio_v7_0_funcs;
> else if (adev->asic_type == CHIP_VEGA20)
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