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由 Alex Deucher 提交于
Check the that ring we are using for copies is functional rather than the GFX ring. On newer asics we use the DMA ring for bo moves. Reviewed-by: NChristian König <christian.koenig@amd.com> Signed-off-by: NAlex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org
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