1 /* 2 * Copyright (c) 2016-2017, ARM Limited and Contributors. All rights reserved. 3 * 4 * SPDX-License-Identifier: BSD-3-Clause 5 */ 6 7 #include <arch.h> 8 #include <asm_macros.S> 9 #include <platform_def.h> 10 11 .weak plat_get_my_stack 12 .weak plat_set_my_stack 13 14 /* ----------------------------------------------------- 15 * uintptr_t plat_get_my_stack (u_register_t mpidr) 16 * 17 * For a given CPU, this function returns the stack 18 * pointer for a stack allocated in device memory. 19 * ----------------------------------------------------- 20 */ 21 func plat_get_my_stack 22 push {r4, lr} 23 get_my_mp_stack platform_normal_stacks, PLATFORM_STACK_SIZE 24 pop {r4, pc} 25 endfunc plat_get_my_stack 26 27 /* ----------------------------------------------------- 28 * void plat_set_my_stack () 29 * 30 * For the current CPU, this function sets the stack 31 * pointer to a stack allocated in normal memory. 32 * ----------------------------------------------------- 33 */ 34 func plat_set_my_stack 35 mov r4, lr 36 get_my_mp_stack platform_normal_stacks, PLATFORM_STACK_SIZE 37 mov sp, r0 38 bx r4 39 endfunc plat_set_my_stack 40 41 /* ----------------------------------------------------- 42 * Per-cpu stacks in normal memory. Each cpu gets a 43 * stack of PLATFORM_STACK_SIZE bytes. 44 * ----------------------------------------------------- 45 */ 46 declare_stack platform_normal_stacks, tzfw_normal_stacks, \ 47 PLATFORM_STACK_SIZE, PLATFORM_CORE_COUNT 48
