diff options
| author | Alex Deucher <alexander.deucher@amd.com> | 2016-03-02 20:10:20 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2016-03-09 21:03:52 +0300 |
| commit | bedf2a65c1aa8fb29ba8527fd00c0f68ec1f55f1 (patch) | |
| tree | 68527b30aad2184f325a4265498baaa0e7ff4a15 /drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | |
| parent | e64c952efb8e0c15ae82cec8e455ab4910690ef1 (diff) | |
| download | linux-bedf2a65c1aa8fb29ba8527fd00c0f68ec1f55f1.tar.xz | |
drm/amdgpu: disable runtime pm on PX laptops without dGPU power control
Some PX laptops don't provide an ACPI method to control dGPU power. On
those systems, the driver is responsible for handling the dGPU power
state. Disable runtime PM on them until support for this is implemented.
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_device.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c index db20d2783def..462fec0ab594 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c @@ -62,6 +62,12 @@ static const char *amdgpu_asic_name[] = { "LAST", }; +#if defined(CONFIG_VGA_SWITCHEROO) +bool amdgpu_has_atpx_dgpu_power_cntl(void); +#else +static inline bool amdgpu_has_atpx_dgpu_power_cntl(void) { return false; } +#endif + bool amdgpu_device_is_px(struct drm_device *dev) { struct amdgpu_device *adev = dev->dev_private; @@ -1479,7 +1485,7 @@ int amdgpu_device_init(struct amdgpu_device *adev, if (amdgpu_runtime_pm == 1) runtime = true; - if (amdgpu_device_is_px(ddev)) + if (amdgpu_device_is_px(ddev) && amdgpu_has_atpx_dgpu_power_cntl()) runtime = true; vga_switcheroo_register_client(adev->pdev, &amdgpu_switcheroo_ops, runtime); if (runtime) |