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https://github.com/ARM-software/arm-trusted-firmware.git
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877cf3ff12
This patch adds AArch32 support for FVP and implements common platform APIs like `plat_get_my_stack`, `plat_set_my_stack`, `plat_my_core_cos` for AArch32. Only Multi Processor(MP) implementations of these functions are considered in this patch. The ARM Standard platform layer helpers are implemented for AArch32 and the common makefiles are modified to cater for both AArch64 and AArch32 builds. Compatibility with the deprecated platform API is not supported for AArch32. Change-Id: Iad228400613eec91abf731b49e21a15bcf2833ea
71 lines
2.7 KiB
ArmAsm
71 lines
2.7 KiB
ArmAsm
/*
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* Copyright (c) 2016, ARM Limited and Contributors. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* Neither the name of ARM nor the names of its contributors may be used
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* to endorse or promote products derived from this software without specific
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* prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <arch.h>
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#include <asm_macros.S>
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#include <platform_def.h>
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.globl plat_get_my_stack
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.globl plat_set_my_stack
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/* -----------------------------------------------------
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* uintptr_t plat_get_my_stack (u_register_t mpidr)
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*
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* For a given CPU, this function returns the stack
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* pointer for a stack allocated in device memory.
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* -----------------------------------------------------
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*/
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func plat_get_my_stack
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mov r3, lr
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get_my_mp_stack platform_normal_stacks, PLATFORM_STACK_SIZE
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bx r3
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endfunc plat_get_my_stack
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/* -----------------------------------------------------
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* void plat_set_my_stack ()
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*
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* For the current CPU, this function sets the stack
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* pointer to a stack allocated in normal memory.
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* -----------------------------------------------------
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*/
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func plat_set_my_stack
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mov r3, lr
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get_my_mp_stack platform_normal_stacks, PLATFORM_STACK_SIZE
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mov sp, r0
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bx r3
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endfunc plat_set_my_stack
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/* -----------------------------------------------------
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* Per-cpu stacks in normal memory. Each cpu gets a
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* stack of PLATFORM_STACK_SIZE bytes.
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* -----------------------------------------------------
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*/
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declare_stack platform_normal_stacks, tzfw_normal_stacks, \
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PLATFORM_STACK_SIZE, PLATFORM_CORE_COUNT
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