From ede0dd86f45adf2b7083bb161f6bc81da5fe2bad Mon Sep 17 00:00:00 2001 From: Felix Kuehling Date: Thu, 15 Mar 2018 17:27:43 -0400 Subject: drm/amdgpu: Add kfd2kgd interface to acquire an existing VM MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This allows acquiring an existing VM from a render node FD to use it for a compute process. Such VMs get destroyed when the original file descriptor is released. Added a callback from amdgpu_vm_fini to handle KFD VM destruction correctly in this case. v2: * Removed vm->vm_context check in amdgpu_amdkfd_gpuvm_destroy_cb, check vm->process_info earlier instead Signed-off-by: Felix Kuehling Acked-by: Christian König Signed-off-by: Oded Gabbay --- drivers/gpu/drm/amd/include/kgd_kfd_interface.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'drivers/gpu/drm/amd/include/kgd_kfd_interface.h') diff --git a/drivers/gpu/drm/amd/include/kgd_kfd_interface.h b/drivers/gpu/drm/amd/include/kgd_kfd_interface.h index 1e5c22ceb256..b1f35c8be2cf 100644 --- a/drivers/gpu/drm/amd/include/kgd_kfd_interface.h +++ b/drivers/gpu/drm/amd/include/kgd_kfd_interface.h @@ -336,6 +336,8 @@ struct kfd2kgd_calls { int (*create_process_vm)(struct kgd_dev *kgd, void **vm, void **process_info, struct dma_fence **ef); + int (*acquire_process_vm)(struct kgd_dev *kgd, struct file *filp, + void **vm, void **process_info, struct dma_fence **ef); void (*destroy_process_vm)(struct kgd_dev *kgd, void *vm); uint32_t (*get_process_page_dir)(void *vm); void (*set_vm_context_page_table_base)(struct kgd_dev *kgd, -- cgit v1.2.3