mirror of
https://github.com/acidanthera/audk.git
synced 2025-08-18 16:18:12 +02:00
734e71f428
AsmMacroIoLib.h and AsmMacroIoLibV8.h are used by the CompilerIntrinsicsLib, which is moving to MdePkg. These functions provide standard definitions for ARM/AARCH64 assembly code, respectively, and so are moved to the arch directories in MdePkg to avoid MdePkg having a dependency on ArmPkg. Now that the files are in Arm/ and AArch64/ directories, the filenames are changed to AsmMacroLib.h as we can distinguish the architecture from the path. AsmMacroIoLib.inc is unused and so is removed. Continuous-integration-options: PatchCheck.ignore-multi-package Signed-off-by: Oliver Smith-Denny <osde@linux.microsoft.com>
45 lines
1.0 KiB
ArmAsm
45 lines
1.0 KiB
ArmAsm
//
|
|
// Copyright (c) 2012-2014, ARM Limited. All rights reserved.
|
|
//
|
|
// SPDX-License-Identifier: BSD-2-Clause-Patent
|
|
//
|
|
//
|
|
|
|
#include <AsmMacroLib.h>
|
|
|
|
.arch_extension sec
|
|
|
|
ASM_FUNC(ArmCallSmc)
|
|
push {r4-r8}
|
|
// r0 will be popped just after the SMC call
|
|
push {r0}
|
|
|
|
// Load the SMC arguments values into the appropriate registers
|
|
ldr r7, [r0, #28]
|
|
ldr r6, [r0, #24]
|
|
ldr r5, [r0, #20]
|
|
ldr r4, [r0, #16]
|
|
ldr r3, [r0, #12]
|
|
ldr r2, [r0, #8]
|
|
ldr r1, [r0, #4]
|
|
ldr r0, [r0, #0]
|
|
|
|
smc #0
|
|
|
|
// Pop the ARM_SMC_ARGS structure address from the stack into r8
|
|
pop {r8}
|
|
|
|
// Load the SMC returned values into the appropriate registers
|
|
// A SMC call can return up to 4 values - we do not need to store back r4-r7.
|
|
str r3, [r8, #12]
|
|
str r2, [r8, #8]
|
|
str r1, [r8, #4]
|
|
str r0, [r8, #0]
|
|
|
|
mov r0, r8
|
|
|
|
// Restore the registers r4-r8
|
|
pop {r4-r8}
|
|
|
|
bx lr
|