audk/ArmPkg/Library/ArmSmcLib/Arm/ArmSmc.S

76 lines
1.7 KiB
ArmAsm

//
// Copyright (c) 2012, ARM Limited. All rights reserved.
//
// This program and the accompanying materials
// are licensed and made available under the terms and conditions of the BSD License
// which accompanies this distribution. The full text of the license may be found at
// http://opensource.org/licenses/bsd-license.php
//
// THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
// WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
//
//
.text
.align 3
.arch_extension sec
GCC_ASM_EXPORT(ArmCallSmc)
GCC_ASM_EXPORT(ArmCallSmcArg1)
GCC_ASM_EXPORT(ArmCallSmcArg2)
GCC_ASM_EXPORT(ArmCallSmcArg3)
ASM_PFX(ArmCallSmc):
push {r1}
mov r1, r0
ldr r0,[r1]
smc #0
str r0,[r1]
pop {r1}
bx lr
ASM_PFX(ArmCallSmcArg1):
push {r2-r3}
mov r2, r0
mov r3, r1
ldr r0,[r2]
ldr r1,[r3]
smc #0
str r0,[r2]
str r1,[r3]
pop {r2-r3}
bx lr
ASM_PFX(ArmCallSmcArg2):
push {r3-r5}
mov r3, r0
mov r4, r1
mov r5, r2
ldr r0,[r3]
ldr r1,[r4]
ldr r2,[r5]
smc #0
str r0,[r3]
str r1,[r4]
str r2,[r5]
pop {r3-r5}
bx lr
ASM_PFX(ArmCallSmcArg3):
push {r4-r7}
mov r4, r0
mov r5, r1
mov r6, r2
mov r7, r3
ldr r0,[r4]
ldr r1,[r5]
ldr r2,[r6]
ldr r3,[r7]
smc #0
str r0,[r4]
str r1,[r5]
str r2,[r6]
str r3,[r7]
pop {r4-r7}
bx lr