arm-trusted-firmware/plat/common/aarch64/platform_up_stack.S
Soby Mathew 4c0d039076 Rework type usage in Trusted Firmware
This patch reworks type usage in generic code, drivers and ARM platform files
to make it more portable. The major changes done with respect to
type usage are as listed below:

* Use uintptr_t for storing address instead of uint64_t or unsigned long.
* Review usage of unsigned long as it can no longer be assumed to be 64 bit.
* Use u_register_t for register values whose width varies depending on
  whether AArch64 or AArch32.
* Use generic C types where-ever possible.

In addition to the above changes, this patch also modifies format specifiers
in print invocations so that they are AArch64/AArch32 agnostic. Only files
related to upcoming feature development have been reworked.

Change-Id: I9f8c78347c5a52ba7027ff389791f1dad63ee5f8
2016-07-18 17:52:15 +01:00

102 lines
3.8 KiB
ArmAsm

/*
* Copyright (c) 2014-2016, 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_def.h>
.local platform_normal_stacks
.globl plat_set_my_stack
.globl plat_get_my_stack
.globl platform_set_stack
.globl 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