diff options
| author | Alex Deucher <alexander.deucher@amd.com> | 2020-12-09 13:07:30 -0500 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2020-12-15 11:35:12 -0500 |
| commit | b10c1c5b3a4e3f1f166ab48c3619d8348a4e9c5d (patch) | |
| tree | 6d551b5a055eb61430448db69979a2a9f04c6f3e /drivers/gpu/drm | |
| parent | fd496ca892f52df6eb0a0bfcdef1378aed966624 (diff) | |
| download | linux-b10c1c5b3a4e3f1f166ab48c3619d8348a4e9c5d.tar.bz2 | |
drm/amdgpu: add check for ACPI power resources
Check if the device has ACPI power resources so we can
enable runtime pm if so.
Acked-by: Evan Quan <evan.quan@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu.h | 1 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c | 4 |
2 files changed, 5 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h index 859aae780056..e119185210de 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h @@ -1024,6 +1024,7 @@ struct amdgpu_device { /* enable runtime pm on the device */ bool runpm; bool in_runpm; + bool has_pr3; bool pm_sysfs_en; bool ucode_sysfs_en; diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c index 38fb903338a4..ec8fff7839ef 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c @@ -133,6 +133,7 @@ void amdgpu_register_gpu_instance(struct amdgpu_device *adev) int amdgpu_driver_load_kms(struct amdgpu_device *adev, unsigned long flags) { struct drm_device *dev; + struct pci_dev *parent; int r, acpi_status; dev = adev_to_drm(adev); @@ -144,6 +145,9 @@ int amdgpu_driver_load_kms(struct amdgpu_device *adev, unsigned long flags) !pci_is_thunderbolt_attached(dev->pdev)) flags |= AMD_IS_PX; + parent = pci_upstream_bridge(adev->pdev); + adev->has_pr3 = parent ? pci_pr3_present(parent) : false; + /* amdgpu_device_init should report only fatal error * like memory allocation failure or iomapping failure, * or memory manager initialization failure, it must |