diff options
| author | Ramesh Errabolu <Ramesh.Errabolu@amd.com> | 2023-06-21 03:35:46 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2023-07-07 20:51:47 +0300 |
| commit | 95de7f26b5c0bd907834b1027a2dca8ac6758bbc (patch) | |
| tree | 3eab28175b94c62c38c23677b392a092e9d2d2c7 /drivers/gpu | |
| parent | a90d36a49a9d4ba703ff680a035e22b88a566023 (diff) | |
| download | linux-95de7f26b5c0bd907834b1027a2dca8ac6758bbc.tar.xz | |
drm/amdkfd: Access gpuvm_export_dmabuf() API to get Dmabuf
Directly invoking the function amdgpu_gem_prime_export() from within
KFD is not correct. By utilizing the KFD API to obtain Dmabuf, the
implementation can prevent the creation of multiple instances of
struct dma_buf.
Signed-off-by: Ramesh Errabolu <Ramesh.Errabolu@amd.com>
Reviewed-by: David Francis <David.Francis@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/amd/amdkfd/kfd_chardev.c | 11 |
1 files changed, 5 insertions, 6 deletions
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c b/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c index 6a27b000a246..76b41b5de281 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c @@ -1852,15 +1852,14 @@ static uint32_t get_process_num_bos(struct kfd_process *p) return num_of_bos; } -static int criu_get_prime_handle(struct drm_gem_object *gobj, int flags, +static int criu_get_prime_handle(struct kgd_mem *mem, int flags, u32 *shared_fd) { struct dma_buf *dmabuf; int ret; - dmabuf = amdgpu_gem_prime_export(gobj, flags); - if (IS_ERR(dmabuf)) { - ret = PTR_ERR(dmabuf); + ret = amdgpu_amdkfd_gpuvm_export_dmabuf(mem, &dmabuf); + if (ret) { pr_err("dmabuf export failed for the BO\n"); return ret; } @@ -1940,7 +1939,7 @@ static int criu_checkpoint_bos(struct kfd_process *p, } if (bo_bucket->alloc_flags & (KFD_IOC_ALLOC_MEM_FLAGS_VRAM | KFD_IOC_ALLOC_MEM_FLAGS_GTT)) { - ret = criu_get_prime_handle(&dumper_bo->tbo.base, + ret = criu_get_prime_handle(kgd_mem, bo_bucket->alloc_flags & KFD_IOC_ALLOC_MEM_FLAGS_WRITABLE ? DRM_RDWR : 0, &bo_bucket->dmabuf_fd); @@ -2402,7 +2401,7 @@ static int criu_restore_bo(struct kfd_process *p, /* create the dmabuf object and export the bo */ if (bo_bucket->alloc_flags & (KFD_IOC_ALLOC_MEM_FLAGS_VRAM | KFD_IOC_ALLOC_MEM_FLAGS_GTT)) { - ret = criu_get_prime_handle(&kgd_mem->bo->tbo.base, DRM_RDWR, + ret = criu_get_prime_handle(kgd_mem, DRM_RDWR, &bo_bucket->dmabuf_fd); if (ret) return ret; |