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: Evan Quan <evan.quan@xxxxxxx>
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
---
drivers/gpu/drm/amd/amdgpu/amdgpu.h | 1 +
drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 15 +++++++++++++++
2 files changed, 16 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
index 00cc43f74be1..8bdaf1c784e5 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
@@ -1139,6 +1139,7 @@ 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);
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
index 4eee40b9d0b0..85357bd2863e 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
@@ -154,6 +154,21 @@ 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.
*
--
2.23.0
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