ArmPkg: Move ArmSmcLib from ArmPlatformLib to ArmPkg

A ArmSmcLib Null implementation has also been added for CPU without the ARM Security
Extension (Trustzone support).

Signed-off-by: Olivier Martin <olivier.martin@arm.com>



git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@14164 6f19259b-4bc3-4df7-8a09-765794883524

ArmPkg/Library/ArmSmcLib/Arm/ArmSmc.S

@@ -0,0 +1,75 @@
+//
+//  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