drm/amdgpu: disallow gfxoff until GC IP blocks complete s2idle resume

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commit d61e1d1d52 upstream.

In the S2idle suspend/resume phase the gfxoff is keeping functional so
some IP blocks will be likely to reinitialize at gfxoff entry and that
will result in failing to program GC registers.Therefore, let disallow
gfxoff until AMDGPU IPs reinitialized completely.

Signed-off-by: Prike Liang <Prike.Liang@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org # 5.15.x
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Prike Liang 2022-10-21 10:04:40 +08:00 • committed by Greg Kroah-Hartman

parent a2f0934e6b

commit 986a89b371

1 changed files with 16 additions and 0 deletions

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

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