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drm/amdgpu: add baco support to runtime suspend/resume 

BACO - Bus Active, Chip Off

This adds the necessary support to the runtime suspend
and resume functions to handle boards that support
baco.

Reviewed-by: Evan Quan <evan.quan@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Alex Deucher 2019-10-04 12:54:12 -05:00
parent 361dbd01a1
commit 1913431728
1 changed files with 6 additions and 1 deletions
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7
drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
View File

@ -1155,7 +1155,8 @@ static int amdgpu_pmops_resume(struct device *dev)
struct drm_device *drm_dev = dev_get_drvdata(dev);
/* GPU comes up enabled by the bios on resume */
if (amdgpu_device_supports_boco(drm_dev)) {
if (amdgpu_device_supports_boco(drm_dev) ||
amdgpu_device_supports_baco(drm_dev)) {
pm_runtime_disable(dev);
pm_runtime_set_active(dev);
pm_runtime_enable(dev);
@ -1222,6 +1223,8 @@ static int amdgpu_pmops_runtime_suspend(struct device *dev)
else if (!amdgpu_has_atpx_dgpu_power_cntl())
pci_set_power_state(pdev, PCI_D3hot);
drm_dev->switch_power_state = DRM_SWITCH_POWER_DYNAMIC_OFF;
} else if (amdgpu_device_supports_baco(drm_dev)) {
amdgpu_device_baco_enter(drm_dev);
}
return 0;
@ -1247,6 +1250,8 @@ static int amdgpu_pmops_runtime_resume(struct device *dev)
if (ret)
return ret;
pci_set_master(pdev);
} else if (amdgpu_device_supports_baco(drm_dev)) {
amdgpu_device_baco_exit(drm_dev);
}
ret = amdgpu_device_resume(drm_dev, false, false);
drm_kms_helper_poll_enable(drm_dev);