drm/amdgpu: Protect GPU register accesses in powergated state in some paths

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[ Upstream commit 39fc2bc4da ]

Ungate GPU CG/PG in device_fini_hw and device_halt to protect GPU
register accesses, e.g. GC registers are accessed in amdgpu_irq_disable_all()
and amdgpu_fence_driver_hw_fini().

Signed-off-by: Yifan Zhang <yifan1.zhang@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Lijo Lazar <lijo.lazar@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>

...

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Yifan Zhang 2026-02-02 13:17:39 +08:00 • committed by Sasha Levin

parent bfcd6b53e1

commit fc58ef30e0

1 changed files with 6 additions and 3 deletions

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

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