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#
# Copyright (c) 2014-2015, Linaro Limited. All rights reserved.
# Copyright (c) 2014-2015, Hisilicon 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.
#
#
#include <AsmMacroIoLibV8.h>
#include <Library/ArmLib.h>
.text
.align 3
GCC_ASM_EXPORT(ArmPlatformPeiBootAction)
GCC_ASM_EXPORT(ArmPlatformIsPrimaryCore)
GCC_ASM_EXPORT(ArmPlatformGetPrimaryCoreMpId)
GCC_ASM_EXPORT(ArmPlatformGetCorePosition)
GCC_ASM_IMPORT(_gPcd_FixedAtBuild_PcdArmPrimaryCoreMask)
PrimaryCoreMpid: .word 0x0
ASM_PFX(ArmPlatformPeiBootAction):
// The trusted firmware passes the primary CPU MPID through x0 register.
// Save it in a variable.
ldr x1, =PrimaryCoreMpid
str w0, [x1]
ret
//UINTN
//ArmPlatformIsPrimaryCore (
// IN UINTN MpId
// );
ASM_PFX(ArmPlatformIsPrimaryCore):
LoadConstantToReg (_gPcd_FixedAtBuild_PcdArmPrimaryCoreMask, x1)
ldrh w1, [x1]
and x0, x0, x1
ldr x1, =PrimaryCoreMpid
ldrh w1, [x1]
cmp w0, w1
mov x0, #1
mov x1, #0
csel x0, x0, x1, eq
ret
//UINTN
//ArmPlatformGetPrimaryCoreMpId (
// VOID
// );
ASM_PFX(ArmPlatformGetPrimaryCoreMpId):
ldr x0, =PrimaryCoreMpid
ldrh w0, [x0]
ret
//UINTN
//ArmPlatformGetCorePosition (
// IN UINTN MpId
// );
// With this function: CorePos = (ClusterId * 4) + CoreId
ASM_PFX(ArmPlatformGetCorePosition):
and x1, x0, #ARM_CORE_MASK
and x0, x0, #ARM_CLUSTER_MASK
add x0, x1, x0, LSR #6
ret
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