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drm/amdgpu: fix s4 resume

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commit ca19852884c8937eed89560f924f5a34cfcc22af upstream.

No need to re-init asic if it's already been initialized.
Skip IB tests since kernel processes are frozen in thaw.

Signed-off-by: Flora Cui <Flora.Cui@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Flora Cui 2016-02-04 15:10:08 +08:00 committed by Greg Kroah-Hartman
parent 4474b85771
commit 9470340221
1 changed files with 9 additions and 4 deletions
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13
drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
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@ -1744,15 +1744,20 @@ int amdgpu_resume_kms(struct drm_device *dev, bool resume, bool fbcon)
}
/* post card */
amdgpu_atom_asic_init(adev->mode_info.atom_context);
if (!amdgpu_card_posted(adev))
amdgpu_atom_asic_init(adev->mode_info.atom_context);
r = amdgpu_resume(adev);
if (r)
DRM_ERROR("amdgpu_resume failed (%d).\n", r);
amdgpu_fence_driver_resume(adev);
r = amdgpu_ib_ring_tests(adev);
if (r)
DRM_ERROR("ib ring test failed (%d).\n", r);
if (resume) {
r = amdgpu_ib_ring_tests(adev);
if (r)
DRM_ERROR("ib ring test failed (%d).\n", r);
}
r = amdgpu_late_init(adev);
if (r)