ArmPkg: Move ArmSmcLib from ArmPlatformLib to ArmPkg

[mirror_edk2.git] / ArmPkg / Library / ArmSmcLib / Arm / ArmSmc.S

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