mmap

Provide which gem object you wish to map in offset.

To get the offset use AMDGPU_GEM_MMAP

The object might not be mappable.

Once the right object is fount it's mmap function is called. See amdgpu_gem_object_mmap() in kernel/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c.

Remember gem objects are reference counted.