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/*
* Copyright (c) 2014, ARM Limited and Contributors. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* Neither the name of ARM nor the names of its contributors may be used
* to endorse or promote products derived from this software without specific
* prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <arch.h>
#include <asm_macros.S>
#include <platform.h>
.local pcpu_dv_mem_stack
.local platform_normal_stacks
.globl platform_set_stack
.globl platform_get_stack
.globl platform_set_coherent_stack
/* -----------------------------------------------------
* void platform_set_coherent_stack (unsigned long)
*
* For cold-boot BL images, only the primary CPU needs a
* stack. This function sets the stack pointer to a stack
* allocated in device memory.
* -----------------------------------------------------
*/
func platform_set_coherent_stack
get_up_stack pcpu_dv_mem_stack, PCPU_DV_MEM_STACK_SIZE
mov sp, x0
ret
/* -----------------------------------------------------
* unsigned long platform_get_stack (unsigned long)
*
* 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 platform_get_stack
get_up_stack platform_normal_stacks, PLATFORM_STACK_SIZE
ret
/* -----------------------------------------------------
* void platform_set_stack (unsigned long)
*
* 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 platform_set_stack
get_up_stack platform_normal_stacks, PLATFORM_STACK_SIZE
mov sp, x0
ret
/* -----------------------------------------------------
* 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
/* -----------------------------------------------------
* Single cpu stack in device/coherent memory.
* PCPU_DV_MEM_STACK_SIZE bytes are allocated.
* -----------------------------------------------------
*/
declare_stack pcpu_dv_mem_stack, tzfw_coherent_mem, \
PCPU_DV_MEM_STACK_SIZE, 1