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-rw-r--r--plat/common/aarch32/platform_mp_stack.S47
1 files changed, 47 insertions, 0 deletions
diff --git a/plat/common/aarch32/platform_mp_stack.S b/plat/common/aarch32/platform_mp_stack.S
new file mode 100644
index 0000000..6c3d08d
--- /dev/null
+++ b/plat/common/aarch32/platform_mp_stack.S
@@ -0,0 +1,47 @@
+/*
+ * Copyright (c) 2016-2017, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <arch.h>
+#include <asm_macros.S>
+#include <platform_def.h>
+
+ .weak plat_get_my_stack
+ .weak plat_set_my_stack
+
+ /* -----------------------------------------------------
+ * uintptr_t plat_get_my_stack (u_register_t mpidr)
+ *
+ * For a given CPU, this function returns the stack
+ * pointer for a stack allocated in device memory.
+ * -----------------------------------------------------
+ */
+func plat_get_my_stack
+ push {r4, lr}
+ get_my_mp_stack platform_normal_stacks, PLATFORM_STACK_SIZE
+ pop {r4, pc}
+endfunc plat_get_my_stack
+
+ /* -----------------------------------------------------
+ * void plat_set_my_stack ()
+ *
+ * For the current CPU, this function sets the stack
+ * pointer to a stack allocated in normal memory.
+ * -----------------------------------------------------
+ */
+func plat_set_my_stack
+ mov r4, lr
+ get_my_mp_stack platform_normal_stacks, PLATFORM_STACK_SIZE
+ mov sp, r0
+ bx r4
+endfunc plat_set_my_stack
+
+ /* -----------------------------------------------------
+ * Per-cpu stacks in normal memory. Each cpu gets a
+ * stack of PLATFORM_STACK_SIZE bytes.
+ * -----------------------------------------------------
+ */
+declare_stack platform_normal_stacks, tzfw_normal_stacks, \
+ PLATFORM_STACK_SIZE, PLATFORM_CORE_COUNT