1*4882a593Smuzhiyun/* 2*4882a593Smuzhiyun * Copyright (c) 2015, Linaro Limited 3*4882a593Smuzhiyun * 4*4882a593Smuzhiyun * SPDX-License-Identifier: GPL-2.0 5*4882a593Smuzhiyun */ 6*4882a593Smuzhiyun#include <linux/linkage.h> 7*4882a593Smuzhiyun 8*4882a593Smuzhiyun#include <asm/opcodes-sec.h> 9*4882a593Smuzhiyun#include <asm/opcodes-virt.h> 10*4882a593Smuzhiyun 11*4882a593Smuzhiyun#define UNWIND(x...) 12*4882a593Smuzhiyun /* 13*4882a593Smuzhiyun * Wrap c macros in asm macros to delay expansion until after the 14*4882a593Smuzhiyun * SMCCC asm macro is expanded. 15*4882a593Smuzhiyun */ 16*4882a593Smuzhiyun .macro SMCCC_SMC 17*4882a593Smuzhiyun __SMC(0) 18*4882a593Smuzhiyun .endm 19*4882a593Smuzhiyun 20*4882a593Smuzhiyun .macro SMCCC_HVC 21*4882a593Smuzhiyun __HVC(0) 22*4882a593Smuzhiyun .endm 23*4882a593Smuzhiyun 24*4882a593Smuzhiyun .macro SMCCC instr 25*4882a593SmuzhiyunUNWIND( .fnstart) 26*4882a593Smuzhiyun mov r12, sp 27*4882a593Smuzhiyun push {r4-r7} 28*4882a593SmuzhiyunUNWIND( .save {r4-r7}) 29*4882a593Smuzhiyun ldm r12, {r4-r7} 30*4882a593Smuzhiyun \instr 31*4882a593Smuzhiyun pop {r4-r7} 32*4882a593Smuzhiyun ldr r12, [sp, #(4 * 4)] 33*4882a593Smuzhiyun stm r12, {r0-r3} 34*4882a593Smuzhiyun bx lr 35*4882a593SmuzhiyunUNWIND( .fnend) 36*4882a593Smuzhiyun .endm 37*4882a593Smuzhiyun 38*4882a593Smuzhiyun/* 39*4882a593Smuzhiyun * void smccc_smc(unsigned long a0, unsigned long a1, unsigned long a2, 40*4882a593Smuzhiyun * unsigned long a3, unsigned long a4, unsigned long a5, 41*4882a593Smuzhiyun * unsigned long a6, unsigned long a7, struct arm_smccc_res *res, 42*4882a593Smuzhiyun * struct arm_smccc_quirk *quirk) 43*4882a593Smuzhiyun */ 44*4882a593SmuzhiyunENTRY(__arm_smccc_smc) 45*4882a593Smuzhiyun SMCCC SMCCC_SMC 46*4882a593SmuzhiyunENDPROC(__arm_smccc_smc) 47*4882a593Smuzhiyun 48*4882a593Smuzhiyun/* 49*4882a593Smuzhiyun * void smccc_hvc(unsigned long a0, unsigned long a1, unsigned long a2, 50*4882a593Smuzhiyun * unsigned long a3, unsigned long a4, unsigned long a5, 51*4882a593Smuzhiyun * unsigned long a6, unsigned long a7, struct arm_smccc_res *res, 52*4882a593Smuzhiyun * struct arm_smccc_quirk *quirk) 53*4882a593Smuzhiyun */ 54*4882a593SmuzhiyunENTRY(__arm_smccc_hvc) 55*4882a593Smuzhiyun SMCCC SMCCC_HVC 56*4882a593SmuzhiyunENDPROC(__arm_smccc_hvc) 57