From 878bd5cebfea23abccbea1904080e573e2adcaaf Mon Sep 17 00:00:00 2001
From: Benjamin Fair <b-fair@ti.com>
Date: Fri, 14 Oct 2016 01:13:47 +0000
Subject: [PATCH] ti: k3: common: Implement topology functions
These functions describe the layout of the cores and clusters in order to
support the PSCI framework.
Signed-off-by: Benjamin Fair <b-fair@ti.com>
Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Andrew F. Davis <afd@ti.com>
---
plat/ti/k3/common/k3_topology.c | 70 ++++++++++++++++++++++++++++++++
plat/ti/k3/common/plat_common.mk | 1 +
2 files changed, 71 insertions(+)
create mode 100644 plat/ti/k3/common/k3_topology.c
diff --git a/plat/ti/k3/common/k3_topology.c b/plat/ti/k3/common/k3_topology.c
new file mode 100644
index 000000000..a77c8f34c
--- /dev/null
+++ b/plat/ti/k3/common/k3_topology.c
@@ -0,0 +1,70 @@
+/*
+ * Copyright (c) 2017-2018, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <platform_def.h>
+#include <psci.h>
+
+/* The power domain tree descriptor */
+static unsigned char power_domain_tree_desc[] = {
+ PLATFORM_CLUSTER_COUNT,
+ K3_CLUSTER0_CORE_COUNT,
+#if K3_CLUSTER1_MSMC_PORT != UNUSED
+ K3_CLUSTER1_CORE_COUNT,
+#endif /* K3_CLUSTER1_MSMC_PORT != UNUSED */
+#if K3_CLUSTER2_MSMC_PORT != UNUSED
+ K3_CLUSTER2_CORE_COUNT,
+#endif /* K3_CLUSTER2_MSMC_PORT != UNUSED */
+#if K3_CLUSTER3_MSMC_PORT != UNUSED
+ K3_CLUSTER3_CORE_COUNT,
+#endif /* K3_CLUSTER3_MSMC_PORT != UNUSED */
+};
+
+const unsigned char *plat_get_power_domain_tree_desc(void)
+{
+ return power_domain_tree_desc;
+}
+
+int plat_core_pos_by_mpidr(u_register_t mpidr)
+{
+ unsigned int cpu_id;
+
+ mpidr &= MPIDR_AFFINITY_MASK;
+
+ if (mpidr & ~(MPIDR_CLUSTER_MASK | MPIDR_CPU_MASK))
+ return -1;
+
+ cpu_id = MPIDR_AFFLVL0_VAL(mpidr);
+
+ switch (MPIDR_AFFLVL1_VAL(mpidr)) {
+ case K3_CLUSTER0_MSMC_PORT:
+ if (cpu_id < K3_CLUSTER0_CORE_COUNT)
+ return cpu_id;
+ return -1;
+#if K3_CLUSTER1_MSMC_PORT != UNUSED
+ case K3_CLUSTER1_MSMC_PORT:
+ if (cpu_id < K3_CLUSTER1_CORE_COUNT)
+ return K3_CLUSTER0_CORE_COUNT + cpu_id;
+ return -1;
+#endif /* K3_CLUSTER1_MSMC_PORT != UNUSED */
+#if K3_CLUSTER2_MSMC_PORT != UNUSED
+ case K3_CLUSTER2_MSMC_PORT:
+ if (cpu_id < K3_CLUSTER2_CORE_COUNT)
+ return K3_CLUSTER0_CORE_COUNT +
+ K3_CLUSTER1_CORE_COUNT + cpu_id;
+ return -1;
+#endif /* K3_CLUSTER2_MSMC_PORT != UNUSED */
+#if K3_CLUSTER3_MSMC_PORT != UNUSED
+ case K3_CLUSTER3_MSMC_PORT:
+ if (cpu_id < K3_CLUSTER3_CORE_COUNT)
+ return K3_CLUSTER0_CORE_COUNT +
+ K3_CLUSTER1_CORE_COUNT +
+ K3_CLUSTER2_CORE_COUNT + cpu_id;
+ return -1;
+#endif /* K3_CLUSTER3_MSMC_PORT != UNUSED */
+ default:
+ return -1;
+ }
+}
diff --git a/plat/ti/k3/common/plat_common.mk b/plat/ti/k3/common/plat_common.mk
index 65b71e39a..43cdc9ac9 100644
--- a/plat/ti/k3/common/plat_common.mk
+++ b/plat/ti/k3/common/plat_common.mk
@@ -36,3 +36,4 @@ PLAT_BL_COMMON_SOURCES += \
BL31_SOURCES += \
${PLAT_PATH}/common/k3_bl31_setup.c \
${PLAT_PATH}/common/k3_helpers.S \
+ ${PLAT_PATH}/common/k3_topology.c \
--
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