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authorSumit Garg <sumit.garg@linaro.org>2018-06-15 14:43:35 +0530
committerSumit Garg <sumit.garg@linaro.org>2018-06-21 11:22:42 +0530
commit007a7a33583fa7bd3ba499d0f0f44a3aaf7dfb38 (patch)
treed5789748d57b96bc053be354792ecfd56506bf24 /plat/socionext/synquacer
parent5e5cfc21f0c70d8ea7a1bc2e6022d3cdbd4202af (diff)
downloadtrusted-firmware-a-007a7a33583fa7bd3ba499d0f0f44a3aaf7dfb38.tar.gz
synquacer: Implement topology functions
These functions describe the layout of the cores and clusters in order to support the PSCI framework. Signed-off-by: Sumit Garg <sumit.garg@linaro.org>
Diffstat (limited to 'plat/socionext/synquacer')
-rw-r--r--plat/socionext/synquacer/include/platform_def.h6
-rw-r--r--plat/socionext/synquacer/include/sq_common.h14
-rw-r--r--plat/socionext/synquacer/sq_topology.c38
3 files changed, 58 insertions, 0 deletions
diff --git a/plat/socionext/synquacer/include/platform_def.h b/plat/socionext/synquacer/include/platform_def.h
index 7ef0f13d95..238fcbe02a 100644
--- a/plat/socionext/synquacer/include/platform_def.h
+++ b/plat/socionext/synquacer/include/platform_def.h
@@ -9,6 +9,12 @@
#include <common_def.h>
+/* CPU topology */
+#define PLAT_MAX_CORES_PER_CLUSTER 2
+#define PLAT_CLUSTER_COUNT 12
+#define PLATFORM_CORE_COUNT (PLAT_CLUSTER_COUNT * \
+ PLAT_MAX_CORES_PER_CLUSTER)
+
#define CACHE_WRITEBACK_SHIFT 6
#define CACHE_WRITEBACK_GRANULE (1 << CACHE_WRITEBACK_SHIFT)
diff --git a/plat/socionext/synquacer/include/sq_common.h b/plat/socionext/synquacer/include/sq_common.h
new file mode 100644
index 0000000000..531e522797
--- /dev/null
+++ b/plat/socionext/synquacer/include/sq_common.h
@@ -0,0 +1,14 @@
+/*
+ * Copyright (c) 2018, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef __SQ_COMMON_H__
+#define __SQ_COMMON_H__
+
+#include <sys/types.h>
+
+unsigned int sq_calc_core_pos(u_register_t mpidr);
+
+#endif /* __SQ_COMMON_H__ */
diff --git a/plat/socionext/synquacer/sq_topology.c b/plat/socionext/synquacer/sq_topology.c
new file mode 100644
index 0000000000..aa20355999
--- /dev/null
+++ b/plat/socionext/synquacer/sq_topology.c
@@ -0,0 +1,38 @@
+/*
+ * Copyright (c) 2018, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <arch.h>
+#include <sq_common.h>
+#include <platform_def.h>
+
+unsigned char sq_pd_tree_desc[PLAT_CLUSTER_COUNT + 1];
+
+int plat_core_pos_by_mpidr(u_register_t mpidr)
+{
+ unsigned int cluster_id, cpu_id;
+
+ cluster_id = (mpidr >> MPIDR_AFF1_SHIFT) & MPIDR_AFFLVL_MASK;
+ if (cluster_id >= PLAT_CLUSTER_COUNT)
+ return -1;
+
+ cpu_id = (mpidr >> MPIDR_AFF0_SHIFT) & MPIDR_AFFLVL_MASK;
+ if (cpu_id >= PLAT_MAX_CORES_PER_CLUSTER)
+ return -1;
+
+ return sq_calc_core_pos(mpidr);
+}
+
+const unsigned char *plat_get_power_domain_tree_desc(void)
+{
+ int i;
+
+ sq_pd_tree_desc[0] = PLAT_CLUSTER_COUNT;
+
+ for (i = 0; i < PLAT_CLUSTER_COUNT; i++)
+ sq_pd_tree_desc[i + 1] = PLAT_MAX_CORES_PER_CLUSTER;
+
+ return sq_pd_tree_desc;
+}