diff options
| author | Alex Sierra <alex.sierra@amd.com> | 2021-05-05 12:43:10 -0500 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2021-07-01 00:05:41 -0400 |
| commit | 3a61dae854cccb32eb9f31b3b4efda8ea414e647 (patch) | |
| tree | 5ef36aa68397d334d01b772e0e29494b62741176 | |
| parent | 9e4a91cd9ea9b9d6218f6c64c57c5ff412de919f (diff) | |
drm/amdkfd: device pgmap owner at the svm migrate init
GPUs in the same XGMI hive have direct access to all
members'VRAM. When mapping memory to a GPU, we don't need
hmm_range_fault to fault device-private pages in the same
hive back to the host. Identifying the page owner as the hive,
rather than the individual GPU, accomplishes this.
Signed-off-by: Alex Sierra <alex.sierra@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
| -rw-r--r-- | drivers/gpu/drm/amd/amdkfd/kfd_migrate.c | 6 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/amdkfd/kfd_svm.h | 3 |
2 files changed, 6 insertions, 3 deletions
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_migrate.c b/drivers/gpu/drm/amd/amdkfd/kfd_migrate.c index d8092a84e0a4..f1be090f7798 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_migrate.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_migrate.c @@ -379,7 +379,7 @@ svm_migrate_vma_to_vram(struct amdgpu_device *adev, struct svm_range *prange, migrate.start = start; migrate.end = end; migrate.flags = MIGRATE_VMA_SELECT_SYSTEM; - migrate.pgmap_owner = adev; + migrate.pgmap_owner = SVM_ADEV_PGMAP_OWNER(adev); size = 2 * sizeof(*migrate.src) + sizeof(uint64_t) + sizeof(dma_addr_t); size *= npages; @@ -601,7 +601,7 @@ svm_migrate_vma_to_ram(struct amdgpu_device *adev, struct svm_range *prange, migrate.start = start; migrate.end = end; migrate.flags = MIGRATE_VMA_SELECT_DEVICE_PRIVATE; - migrate.pgmap_owner = adev; + migrate.pgmap_owner = SVM_ADEV_PGMAP_OWNER(adev); size = 2 * sizeof(*migrate.src) + sizeof(uint64_t) + sizeof(dma_addr_t); size *= npages; @@ -873,7 +873,7 @@ int svm_migrate_init(struct amdgpu_device *adev) pgmap->range.start = res->start; pgmap->range.end = res->end; pgmap->ops = &svm_migrate_pgmap_ops; - pgmap->owner = adev; + pgmap->owner = SVM_ADEV_PGMAP_OWNER(adev); pgmap->flags = MIGRATE_VMA_SELECT_DEVICE_PRIVATE; r = devm_memremap_pages(adev->dev, pgmap); if (IS_ERR(r)) { diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_svm.h b/drivers/gpu/drm/amd/amdkfd/kfd_svm.h index a9af03994d1a..1f88bdfdbcc2 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_svm.h +++ b/drivers/gpu/drm/amd/amdkfd/kfd_svm.h @@ -35,6 +35,9 @@ #include "amdgpu.h" #include "kfd_priv.h" +#define SVM_ADEV_PGMAP_OWNER(adev)\ + ((adev)->hive ? (void *)(adev)->hive : (void *)(adev)) + struct svm_range_bo { struct amdgpu_bo *bo; struct kref kref; |