drm/radeon: work around a hw bug in MGCG on CIK
Always need to set bit 0 of RLC_CGTT_MGCG_OVERRIDE
to avoid unreliable doorbell updates in some cases.
Signed-off-by:
Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
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Always need to set bit 0 of RLC_CGTT_MGCG_OVERRIDE
to avoid unreliable doorbell updates in some cases.
Signed-off-by:
Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
mentioned in commit 1e6ce3b8
·mentioned in commit 1e6ce3b8