Commit a69cba42 authored by Alex Deucher's avatar Alex Deucher
Browse files

drm/amdgpu: add a amdgpu_device_supports_baco helper 



BACO - Bus Active, Chip Off

To check if a device supports BACO or not.  This will be
used in determining when to enable runtime pm.

Reviewed-by: default avatarEvan Quan <evan.quan@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent ac742616

drivers/gpu/drm/amd/amdgpu/amdgpu.h

+1 −0
Original line number Diff line number Diff line
@@ -1141,6 +1141,7 @@ void amdgpu_device_program_register_sequence(struct amdgpu_device *adev, 
					     const u32 array_size);



bool amdgpu_device_is_px(struct drm_device *dev);

bool amdgpu_device_supports_baco(struct drm_device *dev);

bool amdgpu_device_is_peer_accessible(struct amdgpu_device *adev,

				      struct amdgpu_device *peer_adev);

drivers/gpu/drm/amd/amdgpu/amdgpu_device.c

+15 −0
Original line number Diff line number Diff line
@@ -153,6 +153,21 @@ bool amdgpu_device_is_px(struct drm_device *dev) 
	return false;

}



/**

 * amdgpu_device_supports_baco - Does the device support BACO

 *

 * @dev: drm_device pointer

 *

 * Returns true if the device supporte BACO,

 * otherwise return false.

 */

bool amdgpu_device_supports_baco(struct drm_device *dev)

{

	struct amdgpu_device *adev = dev->dev_private;



	return amdgpu_asic_supports_baco(adev);

}



/**

 * VRAM access helper functions.

 *