arm-trusted-firmware/plat/common/aarch64/platform_up_stack.S
dp-arm 82cb2c1ad9 Use SPDX license identifiers
To make software license auditing simpler, use SPDX[0] license
identifiers instead of duplicating the license text in every file.

NOTE: Files that have been imported by FreeBSD have not been modified.

[0]: https://spdx.org/

Change-Id: I80a00e1f641b8cc075ca5a95b10607ed9ed8761a
Signed-off-by: dp-arm <dimitris.papastamos@arm.com>
2017-05-03 09:39:28 +01:00

79 lines
2.4 KiB
ArmAsm

/*
* Copyright (c) 2014-2017, ARM Limited and Contributors. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#include <arch.h>
#include <asm_macros.S>
#include <platform_def.h>
.local platform_normal_stacks
.weak plat_set_my_stack
.weak plat_get_my_stack
.weak platform_set_stack
.weak platform_get_stack
/* -----------------------------------------------------
* uintptr_t plat_get_my_stack ()
*
* For cold-boot BL images, only the primary CPU needs a
* stack. This function returns the stack pointer for a
* stack allocated in device memory.
* -----------------------------------------------------
*/
func plat_get_my_stack
get_up_stack platform_normal_stacks, PLATFORM_STACK_SIZE
ret
endfunc plat_get_my_stack
/* -----------------------------------------------------
* void plat_set_my_stack ()
*
* For cold-boot BL images, only the primary CPU needs a
* stack. This function sets the stack pointer to a stack
* allocated in normal memory.
* -----------------------------------------------------
*/
func plat_set_my_stack
get_up_stack platform_normal_stacks, PLATFORM_STACK_SIZE
mov sp, x0
ret
endfunc plat_set_my_stack
/* -----------------------------------------------------
* unsigned long platform_get_stack ()
*
* For cold-boot BL images, only the primary CPU needs a
* stack. This function returns the stack pointer for a
* stack allocated in device memory. This function
* is deprecated.
* -----------------------------------------------------
*/
func_deprecated platform_get_stack
b plat_get_my_stack
endfunc_deprecated platform_get_stack
/* -----------------------------------------------------
* void platform_set_stack ()
*
* For cold-boot BL images, only the primary CPU needs a
* stack. This function sets the stack pointer to a stack
* allocated in normal memory.This function is
* deprecated.
* -----------------------------------------------------
*/
func_deprecated platform_set_stack
b plat_set_my_stack
endfunc_deprecated platform_set_stack
/* -----------------------------------------------------
* Single cpu stack in normal memory.
* Used for C code during boot, PLATFORM_STACK_SIZE bytes
* are allocated
* -----------------------------------------------------
*/
declare_stack platform_normal_stacks, tzfw_normal_stacks, \
PLATFORM_STACK_SIZE, 1, CACHE_WRITEBACK_GRANULE