11a0a3f06SYatharth Kochar/* 275311203Sdp-arm * Copyright (c) 2016-2017, ARM Limited and Contributors. All rights reserved. 31a0a3f06SYatharth Kochar * 482cb2c1aSdp-arm * SPDX-License-Identifier: BSD-3-Clause 51a0a3f06SYatharth Kochar */ 61a0a3f06SYatharth Kochar 71a0a3f06SYatharth Kochar#include <arch.h> 81a0a3f06SYatharth Kochar#include <asm_macros.S> 91a0a3f06SYatharth Kochar#include <platform_def.h> 101a0a3f06SYatharth Kochar 1175311203Sdp-arm .weak plat_get_my_stack 1275311203Sdp-arm .weak plat_set_my_stack 131a0a3f06SYatharth Kochar 141a0a3f06SYatharth Kochar /* ----------------------------------------------------- 151a0a3f06SYatharth Kochar * unsigned long plat_get_my_stack () 161a0a3f06SYatharth Kochar * 171a0a3f06SYatharth Kochar * For cold-boot BL images, only the primary CPU needs 181a0a3f06SYatharth Kochar * a stack. This function returns the stack pointer for 191a0a3f06SYatharth Kochar * a stack allocated in normal memory. 201a0a3f06SYatharth Kochar * ----------------------------------------------------- 211a0a3f06SYatharth Kochar */ 221a0a3f06SYatharth Kocharfunc plat_get_my_stack 231a0a3f06SYatharth Kochar get_up_stack platform_normal_stacks, PLATFORM_STACK_SIZE 241a0a3f06SYatharth Kochar bx lr 251a0a3f06SYatharth Kocharendfunc plat_get_my_stack 261a0a3f06SYatharth Kochar 271a0a3f06SYatharth Kochar /* ----------------------------------------------------- 281a0a3f06SYatharth Kochar * void plat_set_my_stack () 291a0a3f06SYatharth Kochar * 301a0a3f06SYatharth Kochar * For cold-boot BL images, only the primary CPU needs 311a0a3f06SYatharth Kochar * a stack. This function sets the stack pointer to a 321a0a3f06SYatharth Kochar * stack allocated in normal memory. 331a0a3f06SYatharth Kochar * ----------------------------------------------------- 341a0a3f06SYatharth Kochar */ 351a0a3f06SYatharth Kocharfunc plat_set_my_stack 361a0a3f06SYatharth Kochar get_up_stack platform_normal_stacks, PLATFORM_STACK_SIZE 371a0a3f06SYatharth Kochar mov sp, r0 381a0a3f06SYatharth Kochar bx lr 391a0a3f06SYatharth Kocharendfunc plat_set_my_stack 401a0a3f06SYatharth Kochar 411a0a3f06SYatharth Kochar /* ----------------------------------------------------- 421a0a3f06SYatharth Kochar * Per-cpu stacks in normal memory. Each cpu gets a 431a0a3f06SYatharth Kochar * stack of PLATFORM_STACK_SIZE bytes. 441a0a3f06SYatharth Kochar * ----------------------------------------------------- 451a0a3f06SYatharth Kochar */ 46*da04341eSChris Kaydeclare_stack platform_normal_stacks, .tzfw_normal_stacks, \ 471a0a3f06SYatharth Kochar PLATFORM_STACK_SIZE, 1, CACHE_WRITEBACK_GRANULE 48