mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-02 17:41:08 +00:00
c54bcf6805
Adjust ARM SMC Calling Convention code for U-Boot: - Replace the license block with SPDX - Change path to asm-offsets.h - Define UNWIND() as no-op - Add Kconfig entry - Add asm-offsets Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
56 lines
1.2 KiB
ArmAsm
56 lines
1.2 KiB
ArmAsm
/*
|
|
* Copyright (c) 2015, Linaro Limited
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0
|
|
*/
|
|
#include <linux/linkage.h>
|
|
|
|
#include <asm/opcodes-sec.h>
|
|
#include <asm/opcodes-virt.h>
|
|
|
|
#define UNWIND(x...)
|
|
/*
|
|
* Wrap c macros in asm macros to delay expansion until after the
|
|
* SMCCC asm macro is expanded.
|
|
*/
|
|
.macro SMCCC_SMC
|
|
__SMC(0)
|
|
.endm
|
|
|
|
.macro SMCCC_HVC
|
|
__HVC(0)
|
|
.endm
|
|
|
|
.macro SMCCC instr
|
|
UNWIND( .fnstart)
|
|
mov r12, sp
|
|
push {r4-r7}
|
|
UNWIND( .save {r4-r7})
|
|
ldm r12, {r4-r7}
|
|
\instr
|
|
pop {r4-r7}
|
|
ldr r12, [sp, #(4 * 4)]
|
|
stm r12, {r0-r3}
|
|
bx lr
|
|
UNWIND( .fnend)
|
|
.endm
|
|
|
|
/*
|
|
* void smccc_smc(unsigned long a0, unsigned long a1, unsigned long a2,
|
|
* unsigned long a3, unsigned long a4, unsigned long a5,
|
|
* unsigned long a6, unsigned long a7, struct arm_smccc_res *res,
|
|
* struct arm_smccc_quirk *quirk)
|
|
*/
|
|
ENTRY(__arm_smccc_smc)
|
|
SMCCC SMCCC_SMC
|
|
ENDPROC(__arm_smccc_smc)
|
|
|
|
/*
|
|
* void smccc_hvc(unsigned long a0, unsigned long a1, unsigned long a2,
|
|
* unsigned long a3, unsigned long a4, unsigned long a5,
|
|
* unsigned long a6, unsigned long a7, struct arm_smccc_res *res,
|
|
* struct arm_smccc_quirk *quirk)
|
|
*/
|
|
ENTRY(__arm_smccc_hvc)
|
|
SMCCC SMCCC_HVC
|
|
ENDPROC(__arm_smccc_hvc)
|