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| author | Alex Deucher <alexander.deucher@amd.com> | 2016-10-19 14:40:58 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2016-10-21 11:18:11 -0400 |
| commit | e695e77c6b49c49e5eafdc6239d6b22bfa30c7cc (patch) | |
| tree | 1a8c2629b4ae220889dd96a2bdda49d6d5453fc4 /drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | |
| parent | 08e23a02e3e2dd6dde0f2f5bb90d03f5bc2a5804 (diff) | |
| download | lwn-e695e77c6b49c49e5eafdc6239d6b22bfa30c7cc.tar.gz lwn-e695e77c6b49c49e5eafdc6239d6b22bfa30c7cc.zip | |
drm/amdgpu: move atom scratch register save/restore to common code
We need this for more than just DCE. Move it out of the DCE modules
and into the device code. This way we can be sure the scratch registers
are initialized properly before we run asic_init which happens before
DCE IPs are restored.
Fixes atombios hangs in asic_init.
Reviewed-by: JimQu <Jim.Qu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_device.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c index 2b0267494bca..7ca07e7b25c1 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c @@ -1959,6 +1959,7 @@ int amdgpu_device_suspend(struct drm_device *dev, bool suspend, bool fbcon) /* evict remaining vram memory */ amdgpu_bo_evict_vram(adev); + amdgpu_atombios_scratch_regs_save(adev); pci_save_state(dev->pdev); if (suspend) { /* Shut down the device */ @@ -2010,6 +2011,7 @@ int amdgpu_device_resume(struct drm_device *dev, bool resume, bool fbcon) return r; } } + amdgpu_atombios_scratch_regs_restore(adev); /* post card */ if (!amdgpu_card_posted(adev) || !resume) { @@ -2277,8 +2279,9 @@ retry: amdgpu_display_stop_mc_access(adev, &save); amdgpu_wait_for_idle(adev, AMD_IP_BLOCK_TYPE_GMC); } - + amdgpu_atombios_scratch_regs_save(adev); r = amdgpu_asic_reset(adev); + amdgpu_atombios_scratch_regs_restore(adev); /* post card */ amdgpu_atom_asic_init(adev->mode_info.atom_context); |