From: Boyuan Zhang <boyuan.zhang@xxxxxxx>
Add a new function to allow setting requested powergating state for the
given instance. If the instance value doesn't match with the one inside
ip_block, then do nothing since this request is for other instances with
the same block type.
Signed-off-by: Boyuan Zhang <boyuan.zhang@xxxxxxx>
---
drivers/gpu/drm/amd/amdgpu/amdgpu.h | 4 +++
drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 37 ++++++++++++++++++++++
2 files changed, 41 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
index d77db73c71f7..a6a497844a3d 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
@@ -357,6 +357,10 @@ int amdgpu_device_ip_set_clockgating_state(void *dev,
int amdgpu_device_ip_set_powergating_state(void *dev,
enum amd_ip_block_type block_type,
enum amd_powergating_state state);
+int amdgpu_device_ip_set_powergating_state_instance(void *dev,
+ enum amd_ip_block_type block_type,
+ enum amd_powergating_state state,
+ unsigned int inst);
void amdgpu_device_ip_get_clockgating_state(struct amdgpu_device *adev,
u64 *flags);
int amdgpu_device_ip_wait_for_idle(struct amdgpu_device *adev,
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
index 4bc109a0d832..dfdb33833fc4 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
@@ -2162,6 +2162,43 @@ int amdgpu_device_ip_set_powergating_state(void *dev,
return r;
}
+/**
+ * amdgpu_device_ip_set_powergating_state_instance - set the PG state
+ *
+ * @dev: amdgpu_device pointer
+ * @block_type: Type of hardware IP (SMU, GFX, UVD, etc.)
+ * @state: powergating state (gate or ungate)
+ *
+ * Sets the requested powergating state for the given instance of
+ * the hardware IP specified.
+ * Returns the error code from the last instance.
+ */
+int amdgpu_device_ip_set_powergating_state_instance(void *dev,
+ enum amd_ip_block_type block_type,
+ enum amd_powergating_state state,
+ unsigned int inst)
+{
+ struct amdgpu_device *adev = dev;
+ int i, r = 0;
+
+ for (i = 0; i < adev->num_ip_blocks; i++) {
+ if (!adev->ip_blocks[i].status.valid)
+ continue;
+ if (adev->ip_blocks[i].version->type != block_type)
+ continue;
+ if (adev->ip_blocks[i].instance != inst)
+ continue;
+ if (!adev->ip_blocks[i].version->funcs->set_powergating_state)
+ continue;
+ r = adev->ip_blocks[i].version->funcs->set_powergating_state(
+ (void *)&adev->ip_blocks[i], state);
+ if (r)
+ DRM_ERROR("set_powergating_state of IP block <%s> failed %d\n",
+ adev->ip_blocks[i].version->funcs->name, r);
+ }
+ return r;
+}
+
/**
* amdgpu_device_ip_get_clockgating_state - get the CG state
*
--
2.34.1
