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/*
* Copyright (c) 2014-2020, ARM Limited and Contributors. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#include <arch.h>
#include <asm_macros.S>
#include <assert_macros.S>
#include <platform_def.h>
.local platform_normal_stacks
.weak plat_get_my_stack
.weak plat_set_my_stack
/* ---------------------------------------------------------------------
* When the compatibility layer is disabled, the platform APIs
* plat_get_my_stack() and plat_set_my_stack() are supported by the
* platform and the previous APIs platform_get_stack() and
* platform_set_stack() are defined in terms of new APIs making use of
* the fact that they are only ever invoked for the current CPU. This
* is to enable components of Trusted Firmware like SPDs using the old
* platform APIs to continue to work.
* --------------------------------------------------------------------
*/
/* -----------------------------------------------------
* uintptr_t plat_get_my_stack ()
*
* For the current CPU, this function returns the stack
* pointer for a stack allocated in device memory.
* -----------------------------------------------------
*/
func plat_get_my_stack
mov x10, x30
get_my_mp_stack platform_normal_stacks, PLATFORM_STACK_SIZE
ret x10
endfunc plat_get_my_stack
/* -----------------------------------------------------
* void plat_set_my_stack ()
*
* For the current CPU, this function sets the stack
* pointer to a stack allocated in normal memory.
* -----------------------------------------------------
*/
func plat_set_my_stack
mov x9, x30
bl plat_get_my_stack
mov sp, x0
ret x9
endfunc plat_set_my_stack
/* -----------------------------------------------------
* Per-CPU stacks in normal memory. Each CPU gets a
* stack of PLATFORM_STACK_SIZE bytes.
* -----------------------------------------------------
*/
declare_stack platform_normal_stacks, .tzfw_normal_stacks, \
PLATFORM_STACK_SIZE, PLATFORM_CORE_COUNT, \
CACHE_WRITEBACK_GRANULE
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