drm/amdgpu: add kernel ctx support (v2)

v2: rebase against kfd changes

Signed-off-by: Chunming Zhou <david1.zhou@amd.com>
Acked-by: Christian K?nig <christian.koenig@amd.com>
Reviewed-by: Jammy Zhou <Jammy.Zhou@amd.com>

1 files changed, 9 insertions, 0 deletions

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
index fefeeb2c4918..801ebfc44034 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
@@ -1525,6 +1525,14 @@ int amdgpu_device_init(struct amdgpu_device *adev,
                 return r;
         }
 
+        if (!adev->kernel_ctx) {
+                uint32_t id = 0;
+                r = amdgpu_ctx_alloc(adev, NULL, &id);
+                if (r) {
+                        dev_err(adev->dev, "failed to create kernel context (%d).\n", r);
+                        return r;
+                }
+        }
         r = amdgpu_ib_ring_tests(adev);
         if (r)
                 DRM_ERROR("ib ring test failed (%d).\n", r);
@@ -1586,6 +1594,7 @@ void amdgpu_device_fini(struct amdgpu_device *adev)
         adev->shutdown = true;
         /* evict vram memory */
         amdgpu_bo_evict_vram(adev);
+        amdgpu_ctx_free(adev, NULL, 0);
         amdgpu_ib_pool_fini(adev);
         amdgpu_fence_driver_fini(adev);
         amdgpu_fbdev_fini(adev);