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>

diff --git a/plat/ti/k3/common/k3_topology.c b/plat/ti/k3/common/k3_topology.c
new file mode 100644 (file)
index 0000000..a77c8f3
--- /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 65b71e39a86e90081750d6125c1f6175356cb1ba..43cdc9ac95fa2555a6ee317da10754890f82b94c 100644 (file)
--- 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       \