drm/amd/amdgpu: enable gfxoff on gc 12.0.1

Enable gfxoff on gc 12.0.1
Signed-off-by: Kenneth Feng <kenneth.feng@amd.com>
Reviewed-by: Jack Gui <Jack.Gui@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/amdgpu/gfx_v12_0.c

@@ -3606,7 +3606,19 @@ static void gfx_v12_cntl_pg(struct amdgpu_device *adev, bool enable)
 static int gfx_v12_0_set_powergating_state(void *handle,
 					   enum amd_powergating_state state)
 {
-	/* TODO */
+	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
+	bool enable = (state == AMD_PG_STATE_GATE);
+
+	if (amdgpu_sriov_vf(adev))
+		return 0;
+
+	switch (amdgpu_ip_version(adev, GC_HWIP, 0)) {
+	case IP_VERSION(12, 0, 1):
+		amdgpu_gfx_off_ctrl(adev, enable);
+		break;
+	default:
+		break;
+	}
 
 	return 0;
 }

drivers/gpu/drm/amd/pm/swsmu/smu14/smu_v14_0.c

@@ -758,6 +758,7 @@ int smu_v14_0_gfx_off_control(struct smu_context *smu, bool enable)
 	case IP_VERSION(14, 0, 0):
 	case IP_VERSION(14, 0, 1):
 	case IP_VERSION(14, 0, 2):
+	case IP_VERSION(14, 0, 3):
 		if (!(adev->pm.pp_feature & PP_GFXOFF_MASK))
 			return 0;
 		if (enable)