drm/amdgpu: add check before enabling/disabling broadcast mode

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When security violation from new vbios happens, data fabric is
risky to stop working. So prevent the direct access to DF
mmFabricConfigAccessControl from the new vbios and onwards.

Signed-off-by: Guchun Chen <guchun.chen@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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Guchun Chen 2019-12-04 15:51:16 +08:00 • committed by Alex Deucher

parent f1f4fab572

commit 79c4c8ea91

1 changed files with 22 additions and 16 deletions

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drivers/gpu/drm/amd/amdgpu/df_v3_6.c

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