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(parent: cefbddb) | patch
drm/amdgpu: toggle DF-Cstate to protect DF reg access
authorHawking Zhang <Hawking.Zhang@amd.com>
Mon, 24 Feb 2020 08:47:23 +0000 (16:47 +0800)
committerAlex Deucher <alexander.deucher@amd.com>
Wed, 26 Feb 2020 19:17:32 +0000 (14:17 -0500)
commitbf15a1463c6265d57bde490c17a38e28231089eb
treefd199bedee88dd5dce8250ddbdfe0d74d54b6855tree | snapshot
parentcefbddb1384c1eba4c94ba4dfe2ee04e576cce9acommit | diff
drm/amdgpu: toggle DF-Cstate to protect DF reg access

driver needs to take DF out Cstate before any DF register
access. otherwise, the DF register may not be accessible.

Signed-off-by: Hawking Zhang <Hawking.Zhang@amd.com>
Acked-by: Evan Quan <evan.quan@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.c diff | blob | history
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