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 --- drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c index d05f8c03e559..7b5437a87b01 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c @@ -1166,7 +1166,8 @@ 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); @@ -1233,6 +1234,8 @@ 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; @@ -1258,6 +1261,8 @@ 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);