diff options
| author | shaoyunl <shaoyun.liu@amd.com> | 2019-04-17 14:28:18 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2019-05-24 12:20:48 -0500 |
| commit | da361dd13f4fb766445f55bbd2eec36c73a9b1bb (patch) | |
| tree | 98547fe53ee4003abdc2ab5e41919b60877c6a40 /drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c | |
| parent | d8e408a82704c86ba87c3d58cfe69dcdb758aa07 (diff) | |
drm/amdgpu: Implement get num of hops between two xgmi device
KFD need to provide the info for upper level to determine the data path
Signed-off-by: shaoyunl <shaoyun.liu@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c index 401edb605fdd..8949b1ac2f18 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c @@ -27,6 +27,7 @@ #include "amdgpu_gfx.h" #include <linux/module.h> #include <linux/dma-buf.h> +#include "amdgpu_xgmi.h" static const unsigned int compute_vmid_bitmap = 0xFF00; @@ -518,6 +519,20 @@ uint64_t amdgpu_amdkfd_get_hive_id(struct kgd_dev *kgd) return adev->gmc.xgmi.hive_id; } +uint8_t amdgpu_amdkfd_get_xgmi_hops_count(struct kgd_dev *dst, struct kgd_dev *src) +{ + struct amdgpu_device *peer_adev = (struct amdgpu_device *)src; + struct amdgpu_device *adev = (struct amdgpu_device *)dst; + int ret = amdgpu_xgmi_get_hops_count(adev, peer_adev); + + if (ret < 0) { + DRM_ERROR("amdgpu: failed to get xgmi hops count between node %d and %d. ret = %d\n", + adev->gmc.xgmi.physical_node_id, + peer_adev->gmc.xgmi.physical_node_id, ret); + ret = 0; + } + return (uint8_t)ret; +} uint64_t amdgpu_amdkfd_get_mmio_remap_phys_addr(struct kgd_dev *kgd) { |