1 files changed, 48 insertions, 0 deletions
diff --git a/plat/qti/common/src/qti_topology.c b/plat/qti/common/src/qti_topology.c
new file mode 100644
index 0000000..bf2e3f3
--- /dev/null
+++ b/plat/qti/common/src/qti_topology.c
@@ -0,0 +1,48 @@
+/*
+ * Copyright (c) 2015-2018, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2018,2020 The Linux Foundation. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <arch.h>
+
+#include <platform_def.h>
+#include <qti_plat.h>
+
+/* The QTI power domain tree descriptor */
+const unsigned char qti_power_domain_tree_desc[] = {
+	/* One domain to represent PDC */
+	PLAT_PDC_COUNT,
+	/* One domain to represent RSC */
+	PLAT_RSC_COUNT,
+	/* There is one top-level FCM cluster */
+	PLAT_CLUSTER_COUNT,
+	/* No. of cores in the FCM cluster */
+	PLAT_CLUSTER0_CORE_COUNT
+};
+
+/*******************************************************************************
+ * This function returns the ARM default topology tree information.
+ ******************************************************************************/
+const unsigned char *plat_get_power_domain_tree_desc(void)
+{
+	return qti_power_domain_tree_desc;
+}
+
+/** Function: plat_core_pos_by_mpidr
+ * This function implements a part of the critical interface between the psci
+ * generic layer and the platform that allows the former to query the platform
+ * to convert an MPIDR to a unique linear index. An error code (-1) is returned
+ * in case the MPIDR is invalid.
+ */
+int plat_core_pos_by_mpidr(u_register_t mpidr)
+{
+	int core_linear_index = plat_qti_core_pos_by_mpidr(mpidr);
+
+	if (core_linear_index < PLATFORM_CORE_COUNT) {
+		return core_linear_index;
+	} else {
+		return -1;
+	}
+}