1877cf3ffSSoby Mathew/* 2*a6b3954bSSoby Mathew * Copyright (c) 2016-2017, ARM Limited and Contributors. All rights reserved. 3877cf3ffSSoby Mathew * 4877cf3ffSSoby Mathew * Redistribution and use in source and binary forms, with or without 5877cf3ffSSoby Mathew * modification, are permitted provided that the following conditions are met: 6877cf3ffSSoby Mathew * 7877cf3ffSSoby Mathew * Redistributions of source code must retain the above copyright notice, this 8877cf3ffSSoby Mathew * list of conditions and the following disclaimer. 9877cf3ffSSoby Mathew * 10877cf3ffSSoby Mathew * Redistributions in binary form must reproduce the above copyright notice, 11877cf3ffSSoby Mathew * this list of conditions and the following disclaimer in the documentation 12877cf3ffSSoby Mathew * and/or other materials provided with the distribution. 13877cf3ffSSoby Mathew * 14877cf3ffSSoby Mathew * Neither the name of ARM nor the names of its contributors may be used 15877cf3ffSSoby Mathew * to endorse or promote products derived from this software without specific 16877cf3ffSSoby Mathew * prior written permission. 17877cf3ffSSoby Mathew * 18877cf3ffSSoby Mathew * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 19877cf3ffSSoby Mathew * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20877cf3ffSSoby Mathew * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21877cf3ffSSoby Mathew * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE 22877cf3ffSSoby Mathew * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 23877cf3ffSSoby Mathew * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 24877cf3ffSSoby Mathew * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 25877cf3ffSSoby Mathew * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 26877cf3ffSSoby Mathew * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 27877cf3ffSSoby Mathew * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 28877cf3ffSSoby Mathew * POSSIBILITY OF SUCH DAMAGE. 29877cf3ffSSoby Mathew */ 30877cf3ffSSoby Mathew 31877cf3ffSSoby Mathew#include <arch.h> 32877cf3ffSSoby Mathew#include <asm_macros.S> 33877cf3ffSSoby Mathew#include <platform_def.h> 34877cf3ffSSoby Mathew 35*a6b3954bSSoby Mathew .weak plat_get_my_stack 36*a6b3954bSSoby Mathew .weak plat_set_my_stack 37877cf3ffSSoby Mathew 38877cf3ffSSoby Mathew /* ----------------------------------------------------- 39877cf3ffSSoby Mathew * uintptr_t plat_get_my_stack (u_register_t mpidr) 40877cf3ffSSoby Mathew * 41877cf3ffSSoby Mathew * For a given CPU, this function returns the stack 42877cf3ffSSoby Mathew * pointer for a stack allocated in device memory. 43877cf3ffSSoby Mathew * ----------------------------------------------------- 44877cf3ffSSoby Mathew */ 45877cf3ffSSoby Mathewfunc plat_get_my_stack 46877cf3ffSSoby Mathew mov r3, lr 47877cf3ffSSoby Mathew get_my_mp_stack platform_normal_stacks, PLATFORM_STACK_SIZE 48877cf3ffSSoby Mathew bx r3 49877cf3ffSSoby Mathewendfunc plat_get_my_stack 50877cf3ffSSoby Mathew 51877cf3ffSSoby Mathew /* ----------------------------------------------------- 52877cf3ffSSoby Mathew * void plat_set_my_stack () 53877cf3ffSSoby Mathew * 54877cf3ffSSoby Mathew * For the current CPU, this function sets the stack 55877cf3ffSSoby Mathew * pointer to a stack allocated in normal memory. 56877cf3ffSSoby Mathew * ----------------------------------------------------- 57877cf3ffSSoby Mathew */ 58877cf3ffSSoby Mathewfunc plat_set_my_stack 59877cf3ffSSoby Mathew mov r3, lr 60877cf3ffSSoby Mathew get_my_mp_stack platform_normal_stacks, PLATFORM_STACK_SIZE 61877cf3ffSSoby Mathew mov sp, r0 62877cf3ffSSoby Mathew bx r3 63877cf3ffSSoby Mathewendfunc plat_set_my_stack 64877cf3ffSSoby Mathew 65877cf3ffSSoby Mathew /* ----------------------------------------------------- 66877cf3ffSSoby Mathew * Per-cpu stacks in normal memory. Each cpu gets a 67877cf3ffSSoby Mathew * stack of PLATFORM_STACK_SIZE bytes. 68877cf3ffSSoby Mathew * ----------------------------------------------------- 69877cf3ffSSoby Mathew */ 70877cf3ffSSoby Mathewdeclare_stack platform_normal_stacks, tzfw_normal_stacks, \ 71877cf3ffSSoby Mathew PLATFORM_STACK_SIZE, PLATFORM_CORE_COUNT 72