nagai/kernel
3
0
Fork 0
forked from mirrors/linux
Code Pull requests Activity

drm/amdgpu: add check for ACPI power resources

Browse source 
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>
This commit is contained in:
Alex Deucher 2020-12-09 13:07:30 -05:00
parent fd496ca892
commit b10c1c5b3a
2 changed files with 5 additions and 0 deletions
repo.diff.show_diff_stats Download patch file Download diff file Expand all files Collapse all files

1
drivers/gpu/drm/amd/amdgpu/amdgpu.h
View file

@ -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;

4
drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
View file

@ -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