On 2023-06-22 17:10, Ramesh Errabolu wrote:
Call KFD api to get Dmabuf instead of calling GEM Prime API
Would appreciate a more detailed commit message to explain why the KFD API is preferred over the GEM API. With or without that change, this is Reviewed-by: David Francis <David.Francis@xxxxxxx>
Signed-off-by: Ramesh Errabolu <Ramesh.Errabolu@xxxxxxx> --- drivers/gpu/drm/amd/amdkfd/kfd_chardev.c | 11 +++++------ 1 file 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 cf1db0ab3471..40ac093b5035 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; -- 2.25.1
