1 files changed, 39 insertions, 0 deletions
diff --git a/plat/qti/msm8916/msm8916_topology.c b/plat/qti/msm8916/msm8916_topology.c
new file mode 100644
index 0000000..d8cdc0e
--- /dev/null
+++ b/plat/qti/msm8916/msm8916_topology.c
@@ -0,0 +1,39 @@
+/*
+ * Copyright (c) 2022, Stephan Gerhold <stephan@gerhold.net>
+ * Copyright (c) 2017-2021, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <arch.h>
+#include <plat/common/platform.h>
+
+#include <platform_def.h>
+
+static const unsigned char plat_power_domain_tree_desc[] = {
+	PLATFORM_SYSTEM_COUNT,
+	PLATFORM_CLUSTER_COUNT,
+	PLATFORM_CPUS_PER_CLUSTER,
+#if PLATFORM_CLUSTER_COUNT > 1
+	PLATFORM_CPUS_PER_CLUSTER,
+#endif
+};
+
+int plat_core_pos_by_mpidr(u_register_t mpidr)
+{
+	unsigned int cluster = MPIDR_AFFLVL1_VAL(mpidr);
+	unsigned int core = MPIDR_AFFLVL0_VAL(mpidr);
+
+	if (MPIDR_AFFLVL3_VAL(mpidr) > 0 ||
+	    MPIDR_AFFLVL2_VAL(mpidr) > 0 ||
+	    cluster >= PLATFORM_CLUSTER_COUNT ||
+	    core >= PLATFORM_CPUS_PER_CLUSTER) {
+		return -1;
+	}
+	return core | (cluster << PLATFORM_CPU_PER_CLUSTER_SHIFT);
+}
+
+const unsigned char *plat_get_power_domain_tree_desc(void)
+{
+	return plat_power_domain_tree_desc;
+}