1*91f16700Schasinglulu/* 2*91f16700Schasinglulu * Copyright (c) 2016-2017, ARM Limited and Contributors. All rights reserved. 3*91f16700Schasinglulu * 4*91f16700Schasinglulu * SPDX-License-Identifier: BSD-3-Clause 5*91f16700Schasinglulu */ 6*91f16700Schasinglulu 7*91f16700Schasinglulu#include <arch.h> 8*91f16700Schasinglulu#include <asm_macros.S> 9*91f16700Schasinglulu#include <platform_def.h> 10*91f16700Schasinglulu 11*91f16700Schasinglulu .weak plat_get_my_stack 12*91f16700Schasinglulu .weak plat_set_my_stack 13*91f16700Schasinglulu 14*91f16700Schasinglulu /* ----------------------------------------------------- 15*91f16700Schasinglulu * uintptr_t plat_get_my_stack (u_register_t mpidr) 16*91f16700Schasinglulu * 17*91f16700Schasinglulu * For a given CPU, this function returns the stack 18*91f16700Schasinglulu * pointer for a stack allocated in device memory. 19*91f16700Schasinglulu * ----------------------------------------------------- 20*91f16700Schasinglulu */ 21*91f16700Schasinglulufunc plat_get_my_stack 22*91f16700Schasinglulu push {r4, lr} 23*91f16700Schasinglulu get_my_mp_stack platform_normal_stacks, PLATFORM_STACK_SIZE 24*91f16700Schasinglulu pop {r4, pc} 25*91f16700Schasingluluendfunc plat_get_my_stack 26*91f16700Schasinglulu 27*91f16700Schasinglulu /* ----------------------------------------------------- 28*91f16700Schasinglulu * void plat_set_my_stack () 29*91f16700Schasinglulu * 30*91f16700Schasinglulu * For the current CPU, this function sets the stack 31*91f16700Schasinglulu * pointer to a stack allocated in normal memory. 32*91f16700Schasinglulu * ----------------------------------------------------- 33*91f16700Schasinglulu */ 34*91f16700Schasinglulufunc plat_set_my_stack 35*91f16700Schasinglulu mov r4, lr 36*91f16700Schasinglulu get_my_mp_stack platform_normal_stacks, PLATFORM_STACK_SIZE 37*91f16700Schasinglulu mov sp, r0 38*91f16700Schasinglulu bx r4 39*91f16700Schasingluluendfunc plat_set_my_stack 40*91f16700Schasinglulu 41*91f16700Schasinglulu /* ----------------------------------------------------- 42*91f16700Schasinglulu * Per-cpu stacks in normal memory. Each cpu gets a 43*91f16700Schasinglulu * stack of PLATFORM_STACK_SIZE bytes. 44*91f16700Schasinglulu * ----------------------------------------------------- 45*91f16700Schasinglulu */ 46*91f16700Schasingluludeclare_stack platform_normal_stacks, .tzfw_normal_stacks, \ 47*91f16700Schasinglulu PLATFORM_STACK_SIZE, PLATFORM_CORE_COUNT 48