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53096728b8
CRIU restore of drm buffer objects requires the ability to create or import a buffer object with a specific gem handle. Add new drm ioctl DRM_IOCTL_GEM_CHANGE_HANDLE, which takes the gem handle of an object and moves that object to a specified new gem handle. This ioctl needs to call drm_prime_remove_buf_handle, but that function acquires the prime lock, which the ioctl needs to hold for other purposes. Make drm_prime_remove_buf_handle not acquire the prime lock, and change its other caller to reflect this. The rest of the kernel patches required to enable CRIU can be found at https://lore.kernel.org/dri-devel/20250617194536.538681-1-David.Francis@amd.com/ v2 - Move documentation to UAPI headers v3 - Always return 0 on success Signed-off-by: David Francis <David.Francis@amd.com> Acked-by: Felix Kuehling <felix.kuehling@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Christian König <christian.koenig@amd.com> Link: https://lore.kernel.org/r/20250717143556.857893-2-David.Francis@amd.com
939 lines
30 KiB
939 lines
30 KiB