1*877cf3ffSSoby Mathew/* 2*877cf3ffSSoby Mathew * Copyright (c) 2016, ARM Limited and Contributors. All rights reserved. 3*877cf3ffSSoby Mathew * 4*877cf3ffSSoby Mathew * Redistribution and use in source and binary forms, with or without 5*877cf3ffSSoby Mathew * modification, are permitted provided that the following conditions are met: 6*877cf3ffSSoby Mathew * 7*877cf3ffSSoby Mathew * Redistributions of source code must retain the above copyright notice, this 8*877cf3ffSSoby Mathew * list of conditions and the following disclaimer. 9*877cf3ffSSoby Mathew * 10*877cf3ffSSoby Mathew * Redistributions in binary form must reproduce the above copyright notice, 11*877cf3ffSSoby Mathew * this list of conditions and the following disclaimer in the documentation 12*877cf3ffSSoby Mathew * and/or other materials provided with the distribution. 13*877cf3ffSSoby Mathew * 14*877cf3ffSSoby Mathew * Neither the name of ARM nor the names of its contributors may be used 15*877cf3ffSSoby Mathew * to endorse or promote products derived from this software without specific 16*877cf3ffSSoby Mathew * prior written permission. 17*877cf3ffSSoby Mathew * 18*877cf3ffSSoby Mathew * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 19*877cf3ffSSoby Mathew * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20*877cf3ffSSoby Mathew * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21*877cf3ffSSoby Mathew * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE 22*877cf3ffSSoby Mathew * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 23*877cf3ffSSoby Mathew * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 24*877cf3ffSSoby Mathew * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 25*877cf3ffSSoby Mathew * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 26*877cf3ffSSoby Mathew * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 27*877cf3ffSSoby Mathew * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 28*877cf3ffSSoby Mathew * POSSIBILITY OF SUCH DAMAGE. 29*877cf3ffSSoby Mathew */ 30*877cf3ffSSoby Mathew 31*877cf3ffSSoby Mathew#include <arch.h> 32*877cf3ffSSoby Mathew#include <asm_macros.S> 33*877cf3ffSSoby Mathew#include <platform_def.h> 34*877cf3ffSSoby Mathew 35*877cf3ffSSoby Mathew .globl plat_get_my_stack 36*877cf3ffSSoby Mathew .globl plat_set_my_stack 37*877cf3ffSSoby Mathew 38*877cf3ffSSoby Mathew /* ----------------------------------------------------- 39*877cf3ffSSoby Mathew * uintptr_t plat_get_my_stack (u_register_t mpidr) 40*877cf3ffSSoby Mathew * 41*877cf3ffSSoby Mathew * For a given CPU, this function returns the stack 42*877cf3ffSSoby Mathew * pointer for a stack allocated in device memory. 43*877cf3ffSSoby Mathew * ----------------------------------------------------- 44*877cf3ffSSoby Mathew */ 45*877cf3ffSSoby Mathewfunc plat_get_my_stack 46*877cf3ffSSoby Mathew mov r3, lr 47*877cf3ffSSoby Mathew get_my_mp_stack platform_normal_stacks, PLATFORM_STACK_SIZE 48*877cf3ffSSoby Mathew bx r3 49*877cf3ffSSoby Mathewendfunc plat_get_my_stack 50*877cf3ffSSoby Mathew 51*877cf3ffSSoby Mathew /* ----------------------------------------------------- 52*877cf3ffSSoby Mathew * void plat_set_my_stack () 53*877cf3ffSSoby Mathew * 54*877cf3ffSSoby Mathew * For the current CPU, this function sets the stack 55*877cf3ffSSoby Mathew * pointer to a stack allocated in normal memory. 56*877cf3ffSSoby Mathew * ----------------------------------------------------- 57*877cf3ffSSoby Mathew */ 58*877cf3ffSSoby Mathewfunc plat_set_my_stack 59*877cf3ffSSoby Mathew mov r3, lr 60*877cf3ffSSoby Mathew get_my_mp_stack platform_normal_stacks, PLATFORM_STACK_SIZE 61*877cf3ffSSoby Mathew mov sp, r0 62*877cf3ffSSoby Mathew bx r3 63*877cf3ffSSoby Mathewendfunc plat_set_my_stack 64*877cf3ffSSoby Mathew 65*877cf3ffSSoby Mathew /* ----------------------------------------------------- 66*877cf3ffSSoby Mathew * Per-cpu stacks in normal memory. Each cpu gets a 67*877cf3ffSSoby Mathew * stack of PLATFORM_STACK_SIZE bytes. 68*877cf3ffSSoby Mathew * ----------------------------------------------------- 69*877cf3ffSSoby Mathew */ 70*877cf3ffSSoby Mathewdeclare_stack platform_normal_stacks, tzfw_normal_stacks, \ 71*877cf3ffSSoby Mathew PLATFORM_STACK_SIZE, PLATFORM_CORE_COUNT 72