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(Cherry picked from radeon commits 3c65fb849e1ba9fb6454bcaa55b696548902f3fc, 694e04720b886060fe3eefdce59741f218c8269f, e3be8b0a8cf484ff16597413a6172788178e80c8, 80eede245d1eda27eaba108b0761a24bfd69aff6 and 5f82a720374c9c1caebb42bfbeea1f0cf8847d28) Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
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