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ArmVirtPkg: clean up assembly source files 

This updates all assembly source files under ArmVirtPkg to mark
exported functions as ASM_FUNC(), which puts them in a separate
section, allowing the linker to prune code that is left unused.

At the same time, clean up the code to get rid of LoadConstantToReg()
instances involving symbol references, each of which emits an absolute
literal, and hence and entry in the PE/COFF .reloc table.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
This commit is contained in:
Ard Biesheuvel 2016-08-10 13:08:57 +02:00
parent 16a9fe2ca9
commit dfc2838892
9 changed files with 95 additions and 248 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

36
ArmVirtPkg/Library/ArmQemuRelocatablePlatformLib/AARCH64/RelocatableVirtHelper.S
View File

@ -1,5 +1,6 @@
#
# Copyright (c) 2011-2013, ARM Limited. All rights reserved.
# Copyright (c) 2016, Linaro Limited. All rights reserved.
#
# This program and the accompanying materials
# are licensed and made available under the terms and conditions of the BSD License
@ -12,33 +13,14 @@
#
#include <AsmMacroIoLibV8.h>
#include <Base.h>
#include <Library/ArmLib.h>
#include <Library/PcdLib.h>
#include <AutoGen.h>
.text
.align 2
GCC_ASM_EXPORT(ArmPlatformPeiBootAction)
GCC_ASM_EXPORT(ArmPlatformIsPrimaryCore)
GCC_ASM_EXPORT(ArmPlatformGetPrimaryCoreMpId)
GCC_ASM_EXPORT(ArmPlatformGetCorePosition)
GCC_ASM_EXPORT(ArmGetPhysAddrTop)
GCC_ASM_IMPORT(_gPcd_FixedAtBuild_PcdArmPrimaryCore)
GCC_ASM_IMPORT(_gPcd_FixedAtBuild_PcdArmPrimaryCoreMask)
GCC_ASM_IMPORT(_gPcd_FixedAtBuild_PcdCoreCount)
.LArm64LinuxMagic:
.byte 0x41, 0x52, 0x4d, 0x64
// VOID
// ArmPlatformPeiBootAction (
// VOID *DeviceTreeBaseAddress, // passed by loader in x0
// VOID *ImageBase // passed by FDF trampoline in x1
// );
ASM_PFX(ArmPlatformPeiBootAction):
ASM_FUNC(ArmPlatformPeiBootAction)
//
// If we are booting from RAM using the Linux kernel boot protocol, x0 will
// point to the DTB image in memory. Otherwise, use the default value defined
@ -104,20 +86,22 @@ ASM_PFX(ArmPlatformPeiBootAction):
.Lout:
ret x29
.LArm64LinuxMagic:
.byte 0x41, 0x52, 0x4d, 0x64
//UINTN
//ArmPlatformGetPrimaryCoreMpId (
// VOID
// );
ASM_PFX(ArmPlatformGetPrimaryCoreMpId):
LoadConstantToReg (_gPcd_FixedAtBuild_PcdArmPrimaryCore, x0)
ldrh w0, [x0]
ASM_FUNC(ArmPlatformGetPrimaryCoreMpId)
MOV32 (w0, FixedPcdGet32 (PcdArmPrimaryCore))
ret
//UINTN
//ArmPlatformIsPrimaryCore (
// IN UINTN MpId
// );
ASM_PFX(ArmPlatformIsPrimaryCore):
ASM_FUNC(ArmPlatformIsPrimaryCore)
mov x0, #1
ret
@ -126,7 +110,7 @@ ASM_PFX(ArmPlatformIsPrimaryCore):
// IN UINTN MpId
// );
// With this function: CorePos = (ClusterId * 4) + CoreId
ASM_PFX(ArmPlatformGetCorePosition):
ASM_FUNC(ArmPlatformGetCorePosition)
and x1, x0, #ARM_CORE_MASK
and x0, x0, #ARM_CLUSTER_MASK
add x0, x1, x0, LSR #6
@ -136,7 +120,7 @@ ASM_PFX(ArmPlatformGetCorePosition):
//GetPhysAddrTop (
// VOID
// );
ASM_PFX(ArmGetPhysAddrTop):
ASM_FUNC(ArmGetPhysAddrTop)
mrs x0, id_aa64mmfr0_el1
adr x1, .LPARanges
and x0, x0, #7

50
ArmVirtPkg/Library/ArmQemuRelocatablePlatformLib/ARM/RelocatableVirtHelper.S
View File

@ -1,6 +1,6 @@
#
# Copyright (c) 2011-2013, ARM Limited. All rights reserved.
# Copyright (c) 2014, Linaro Limited. All rights reserved.
# Copyright (c) 2014-2016, Linaro Limited. All rights reserved.
#
# This program and the accompanying materials
# are licensed and made available under the terms and conditions of the BSD License
@ -13,28 +13,9 @@
#
#include <AsmMacroIoLib.h>
#include <Base.h>
#include <Library/ArmLib.h>
#include <Library/PcdLib.h>
#include <AutoGen.h>
.text
.align 2
GCC_ASM_EXPORT(ArmPlatformPeiBootAction)
GCC_ASM_EXPORT(ArmPlatformIsPrimaryCore)
GCC_ASM_EXPORT(ArmPlatformGetPrimaryCoreMpId)
GCC_ASM_EXPORT(ArmPlatformGetCorePosition)
GCC_ASM_EXPORT(ArmGetPhysAddrTop)
GCC_ASM_IMPORT(_gPcd_FixedAtBuild_PcdArmPrimaryCore)
GCC_ASM_IMPORT(_gPcd_FixedAtBuild_PcdArmPrimaryCoreMask)
GCC_ASM_IMPORT(_gPcd_FixedAtBuild_PcdCoreCount)
.LArm32LinuxMagic:
.byte 0x18, 0x28, 0x6f, 0x01
ASM_PFX(ArmPlatformPeiBootAction):
ASM_FUNC(ArmPlatformPeiBootAction)
//
// If we are booting from RAM using the Linux kernel boot protocol, r0 will
// point to the DTB image in memory. Otherwise, use the default value defined
@ -42,7 +23,7 @@ ASM_PFX(ArmPlatformPeiBootAction):
//
teq r0, #0
bne 0f
ldr r0, =PcdGet64 (PcdDeviceTreeInitialBaseAddress)
LDRL (r0, PcdGet64 (PcdDeviceTreeInitialBaseAddress))
0:mov r11, r14 // preserve LR
mov r10, r0 // preserve DTB pointer
@ -64,8 +45,8 @@ ASM_PFX(ArmPlatformPeiBootAction):
// to the actual relocated value, and add the shift of PcdFdBaseAddress to
// PcdFvBaseAddress as well
//
ldr r8, =PcdGet64 (PcdFdBaseAddress)
ldr r7, =PcdGet64 (PcdFvBaseAddress)
ADRL (r8, PcdGet64 (PcdFdBaseAddress))
ADRL (r7, PcdGet64 (PcdFvBaseAddress))
ldr r6, [r8]
ldr r5, [r7]
sub r5, r5, r6
@ -79,8 +60,8 @@ ASM_PFX(ArmPlatformPeiBootAction):
// encountered. Since we are calling a C function, use the window at the
// beginning of the FD image as a temp stack.
//
ldr r1, =PcdGet64 (PcdSystemMemoryBase)
ldr r2, =PcdGet64 (PcdSystemMemorySize)
ADRL (r1, PcdGet64 (PcdSystemMemoryBase))
ADRL (r2, PcdGet64 (PcdSystemMemorySize))
mov sp, r5
bl FindMemnode
teq r0, #0
@ -91,7 +72,7 @@ ASM_PFX(ArmPlatformPeiBootAction):
// image header at the base of this image (defined in the FDF), and record the
// pointer in PcdDeviceTreeInitialBaseAddress.
//
ldr r8, =PcdGet64 (PcdDeviceTreeInitialBaseAddress)
ADRL (r8, PcdGet64 (PcdDeviceTreeInitialBaseAddress))
add r9, r9, #0x40
str r9, [r8]
@ -102,20 +83,22 @@ ASM_PFX(ArmPlatformPeiBootAction):
.Lout:
bx r11
.LArm32LinuxMagic:
.byte 0x18, 0x28, 0x6f, 0x01
//UINTN
//ArmPlatformGetPrimaryCoreMpId (
// VOID
// );
ASM_PFX(ArmPlatformGetPrimaryCoreMpId):
LoadConstantToReg (_gPcd_FixedAtBuild_PcdArmPrimaryCore, r0)
ldr r0, [r0]
ASM_FUNC(ArmPlatformGetPrimaryCoreMpId)
MOV32 (r0, FixedPcdGet32 (PcdArmPrimaryCore))
bx lr
//UINTN
//ArmPlatformIsPrimaryCore (
// IN UINTN MpId
// );
ASM_PFX(ArmPlatformIsPrimaryCore):
ASM_FUNC(ArmPlatformIsPrimaryCore)
mov r0, #1
bx lr
@ -124,7 +107,7 @@ ASM_PFX(ArmPlatformIsPrimaryCore):
// IN UINTN MpId
// );
// With this function: CorePos = (ClusterId * 4) + CoreId
ASM_PFX(ArmPlatformGetCorePosition):
ASM_FUNC(ArmPlatformGetCorePosition)
and r1, r0, #ARM_CORE_MASK
and r0, r0, #ARM_CLUSTER_MASK
add r0, r1, r0, LSR #6
@ -134,8 +117,7 @@ ASM_PFX(ArmPlatformGetCorePosition):
//GetPhysAddrTop (
// VOID
// );
ASM_PFX(ArmGetPhysAddrTop):
ASM_FUNC(ArmGetPhysAddrTop)
mov r0, #0x00000000
mov r1, #0x10000
bx lr

30
ArmVirtPkg/Library/ArmVirtPlatformLib/AARCH64/VirtHelper.S
View File

@ -1,5 +1,6 @@
#
# Copyright (c) 2011-2013, ARM Limited. All rights reserved.
# Copyright (c) 2016, Linaro Limited. All rights reserved.
#
# This program and the accompanying materials
# are licensed and made available under the terms and conditions of the BSD License
@ -12,41 +13,24 @@
#
#include <AsmMacroIoLibV8.h>
#include <Base.h>
#include <Library/ArmLib.h>
#include <Library/PcdLib.h>
#include <AutoGen.h>
.text
.align 2
GCC_ASM_EXPORT(ArmPlatformPeiBootAction)
GCC_ASM_EXPORT(ArmPlatformIsPrimaryCore)
GCC_ASM_EXPORT(ArmPlatformGetPrimaryCoreMpId)
GCC_ASM_EXPORT(ArmPlatformGetCorePosition)
GCC_ASM_EXPORT(ArmGetPhysAddrTop)
GCC_ASM_IMPORT(_gPcd_FixedAtBuild_PcdArmPrimaryCore)
GCC_ASM_IMPORT(_gPcd_FixedAtBuild_PcdArmPrimaryCoreMask)
GCC_ASM_IMPORT(_gPcd_FixedAtBuild_PcdCoreCount)
ASM_PFX(ArmPlatformPeiBootAction):
ASM_FUNC(ArmPlatformPeiBootAction)
ret
//UINTN
//ArmPlatformGetPrimaryCoreMpId (
// VOID
// );
ASM_PFX(ArmPlatformGetPrimaryCoreMpId):
LoadConstantToReg (_gPcd_FixedAtBuild_PcdArmPrimaryCore, x0)
ldrh w0, [x0]
ASM_FUNC(ArmPlatformGetPrimaryCoreMpId)
MOV32 (w0, FixedPcdGet32 (PcdArmPrimaryCore))
ret
//UINTN
//ArmPlatformIsPrimaryCore (
// IN UINTN MpId
// );
ASM_PFX(ArmPlatformIsPrimaryCore):
ASM_FUNC(ArmPlatformIsPrimaryCore)
mov x0, #1
ret
@ -55,7 +39,7 @@ ASM_PFX(ArmPlatformIsPrimaryCore):
// IN UINTN MpId
// );
// With this function: CorePos = (ClusterId * 4) + CoreId
ASM_PFX(ArmPlatformGetCorePosition):
ASM_FUNC(ArmPlatformGetCorePosition)
and x1, x0, #ARM_CORE_MASK
and x0, x0, #ARM_CLUSTER_MASK
add x0, x1, x0, LSR #6
@ -65,7 +49,7 @@ ASM_PFX(ArmPlatformGetCorePosition):
//GetPhysAddrTop (
// VOID
// );
ASM_PFX(ArmGetPhysAddrTop):
ASM_FUNC(ArmGetPhysAddrTop)
mrs x0, id_aa64mmfr0_el1
adr x1, .LPARanges
and x0, x0, #7

31
ArmVirtPkg/Library/ArmVirtPlatformLib/ARM/VirtHelper.S
View File

@ -1,6 +1,6 @@
#
# Copyright (c) 2011-2013, ARM Limited. All rights reserved.
# Copyright (c) 2014, Linaro Limited. All rights reserved.
# Copyright (c) 2014-2016, Linaro Limited. All rights reserved.
#
# This program and the accompanying materials
# are licensed and made available under the terms and conditions of the BSD License
@ -13,41 +13,24 @@
#
#include <AsmMacroIoLib.h>
#include <Base.h>
#include <Library/ArmLib.h>
#include <Library/PcdLib.h>
#include <AutoGen.h>
.text
.align 2
GCC_ASM_EXPORT(ArmPlatformPeiBootAction)
GCC_ASM_EXPORT(ArmPlatformIsPrimaryCore)
GCC_ASM_EXPORT(ArmPlatformGetPrimaryCoreMpId)
GCC_ASM_EXPORT(ArmPlatformGetCorePosition)
GCC_ASM_EXPORT(ArmGetPhysAddrTop)
GCC_ASM_IMPORT(_gPcd_FixedAtBuild_PcdArmPrimaryCore)
GCC_ASM_IMPORT(_gPcd_FixedAtBuild_PcdArmPrimaryCoreMask)
GCC_ASM_IMPORT(_gPcd_FixedAtBuild_PcdCoreCount)
ASM_PFX(ArmPlatformPeiBootAction):
ASM_FUNC(ArmPlatformPeiBootAction)
bx lr
//UINTN
//ArmPlatformGetPrimaryCoreMpId (
// VOID
// );
ASM_PFX(ArmPlatformGetPrimaryCoreMpId):
LoadConstantToReg (_gPcd_FixedAtBuild_PcdArmPrimaryCore, r0)
ldr r0, [r0]
ASM_FUNC(ArmPlatformGetPrimaryCoreMpId)
MOV32 (r0, FixedPcdGet32 (PcdArmPrimaryCore))
bx lr
//UINTN
//ArmPlatformIsPrimaryCore (
// IN UINTN MpId
// );
ASM_PFX(ArmPlatformIsPrimaryCore):
ASM_FUNC(ArmPlatformIsPrimaryCore)
mov r0, #1
bx lr
@ -56,7 +39,7 @@ ASM_PFX(ArmPlatformIsPrimaryCore):
// IN UINTN MpId
// );
// With this function: CorePos = (ClusterId * 4) + CoreId
ASM_PFX(ArmPlatformGetCorePosition):
ASM_FUNC(ArmPlatformGetCorePosition)
and r1, r0, #ARM_CORE_MASK
and r0, r0, #ARM_CLUSTER_MASK
add r0, r1, r0, LSR #6
@ -66,7 +49,7 @@ ASM_PFX(ArmPlatformGetCorePosition):
//GetPhysAddrTop (
// VOID
// );
ASM_PFX(ArmGetPhysAddrTop):
ASM_FUNC(ArmGetPhysAddrTop)
mov r0, #0x00000000
mov r1, #0x10000
bx lr

10
ArmVirtPkg/Library/ArmVirtPlatformLib/ARM/VirtHelper.asm
View File

@ -11,10 +11,7 @@
// WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
//
#include <AsmMacroIoLib.h>
#include <Base.h>
#include <Library/ArmLib.h>
#include <Library/PcdLib.h>
#include <AutoGen.h>
INCLUDE AsmMacroIoLib.inc
@ -25,10 +22,6 @@
EXPORT ArmPlatformGetCorePosition
EXPORT ArmGetPhysAddrTop
IMPORT _gPcd_FixedAtBuild_PcdArmPrimaryCore
IMPORT _gPcd_FixedAtBuild_PcdArmPrimaryCoreMask
IMPORT _gPcd_FixedAtBuild_PcdCoreCount
AREA VirtHelper, CODE, READONLY
ArmPlatformPeiBootAction FUNCTION
@ -40,8 +33,7 @@ ArmPlatformPeiBootAction FUNCTION
// VOID
// );
ArmPlatformGetPrimaryCoreMpId FUNCTION
LoadConstantToReg (_gPcd_FixedAtBuild_PcdArmPrimaryCore, r0)
ldr r0, [r0]
MOV32 r0, FixedPcdGet32 (PcdArmPrimaryCore)
bx lr
ENDFUNC

36
ArmVirtPkg/Library/ArmXenRelocatablePlatformLib/AARCH64/RelocatableVirtHelper.S
View File

@ -1,5 +1,6 @@
#
# Copyright (c) 2011-2013, ARM Limited. All rights reserved.
# Copyright (c) 2016, Linaro Limited. All rights reserved.
#
# This program and the accompanying materials
# are licensed and made available under the terms and conditions of the BSD License
@ -12,33 +13,14 @@
#
#include <AsmMacroIoLibV8.h>
#include <Base.h>
#include <Library/ArmLib.h>
#include <Library/PcdLib.h>
#include <AutoGen.h>
.text
.align 2
GCC_ASM_EXPORT(ArmPlatformPeiBootAction)
GCC_ASM_EXPORT(ArmPlatformIsPrimaryCore)
GCC_ASM_EXPORT(ArmPlatformGetPrimaryCoreMpId)
GCC_ASM_EXPORT(ArmPlatformGetCorePosition)
GCC_ASM_EXPORT(ArmGetPhysAddrTop)
GCC_ASM_IMPORT(_gPcd_FixedAtBuild_PcdArmPrimaryCore)
GCC_ASM_IMPORT(_gPcd_FixedAtBuild_PcdArmPrimaryCoreMask)
GCC_ASM_IMPORT(_gPcd_FixedAtBuild_PcdCoreCount)
.LArm64LinuxMagic:
.byte 0x41, 0x52, 0x4d, 0x64
// VOID
// ArmPlatformPeiBootAction (
// VOID *DeviceTreeBaseAddress, // passed by loader in x0
// VOID *ImageBase // passed by FDF trampoline in x1
// );
ASM_PFX(ArmPlatformPeiBootAction):
ASM_FUNC(ArmPlatformPeiBootAction)
mov x29, x30 // preserve LR
mov x28, x0 // preserve DTB pointer
mov x27, x1 // preserve base of image pointer
@ -103,20 +85,22 @@ ASM_PFX(ArmPlatformPeiBootAction):
.Lout:
ret x29
.LArm64LinuxMagic:
.byte 0x41, 0x52, 0x4d, 0x64
//UINTN
//ArmPlatformGetPrimaryCoreMpId (
// VOID
// );
ASM_PFX(ArmPlatformGetPrimaryCoreMpId):
LoadConstantToReg (_gPcd_FixedAtBuild_PcdArmPrimaryCore, x0)
ldrh w0, [x0]
ASM_FUNC(ArmPlatformGetPrimaryCoreMpId)
MOV32 (w0, FixedPcdGet32 (PcdArmPrimaryCore))
ret
//UINTN
//ArmPlatformIsPrimaryCore (
// IN UINTN MpId
// );
ASM_PFX(ArmPlatformIsPrimaryCore):
ASM_FUNC(ArmPlatformIsPrimaryCore)
mov x0, #1
ret
@ -125,7 +109,7 @@ ASM_PFX(ArmPlatformIsPrimaryCore):
// IN UINTN MpId
// );
// With this function: CorePos = (ClusterId * 4) + CoreId
ASM_PFX(ArmPlatformGetCorePosition):
ASM_FUNC(ArmPlatformGetCorePosition)
and x1, x0, #ARM_CORE_MASK
and x0, x0, #ARM_CLUSTER_MASK
add x0, x1, x0, LSR #6
@ -135,7 +119,7 @@ ASM_PFX(ArmPlatformGetCorePosition):
//GetPhysAddrTop (
// VOID
// );
ASM_PFX(ArmGetPhysAddrTop):
ASM_FUNC(ArmGetPhysAddrTop)
mrs x0, id_aa64mmfr0_el1
adr x1, .LPARanges
and x0, x0, #7

47
ArmVirtPkg/Library/ArmXenRelocatablePlatformLib/ARM/RelocatableVirtHelper.S
View File

@ -1,6 +1,6 @@
#
# Copyright (c) 2011-2013, ARM Limited. All rights reserved.
# Copyright (c) 2014, Linaro Limited. All rights reserved.
# Copyright (c) 2014-2016, Linaro Limited. All rights reserved.
#
# This program and the accompanying materials
# are licensed and made available under the terms and conditions of the BSD License
@ -13,28 +13,9 @@
#
#include <AsmMacroIoLib.h>
#include <Base.h>
#include <Library/ArmLib.h>
#include <Library/PcdLib.h>
#include <AutoGen.h>
.text
.align 2
GCC_ASM_EXPORT(ArmPlatformPeiBootAction)
GCC_ASM_EXPORT(ArmPlatformIsPrimaryCore)
GCC_ASM_EXPORT(ArmPlatformGetPrimaryCoreMpId)
GCC_ASM_EXPORT(ArmPlatformGetCorePosition)
GCC_ASM_EXPORT(ArmGetPhysAddrTop)
GCC_ASM_IMPORT(_gPcd_FixedAtBuild_PcdArmPrimaryCore)
GCC_ASM_IMPORT(_gPcd_FixedAtBuild_PcdArmPrimaryCoreMask)
GCC_ASM_IMPORT(_gPcd_FixedAtBuild_PcdCoreCount)
.LArm32LinuxMagic:
.byte 0x18, 0x28, 0x6f, 0x01
ASM_PFX(ArmPlatformPeiBootAction):
ASM_FUNC(ArmPlatformPeiBootAction)
mov r11, r14 // preserve LR
mov r10, r0 // preserve DTB pointer
mov r9, r1 // preserve base of image pointer
@ -63,8 +44,8 @@ ASM_PFX(ArmPlatformPeiBootAction):
// to the actual relocated value, and add the shift of PcdFdBaseAddress to
// PcdFvBaseAddress as well
//
ldr r8, =PcdGet64 (PcdFdBaseAddress)
ldr r7, =PcdGet64 (PcdFvBaseAddress)
ADRL (r8, PcdGet64 (PcdFdBaseAddress))
ADRL (r7, PcdGet64 (PcdFvBaseAddress))
ldr r6, [r8]
ldr r5, [r7]
sub r5, r5, r6
@ -78,8 +59,8 @@ ASM_PFX(ArmPlatformPeiBootAction):
// encountered. Since we are calling a C function, use the window at the
// beginning of the FD image as a temp stack.
//
ldr r1, =PcdGet64 (PcdSystemMemoryBase)
ldr r2, =PcdGet64 (PcdSystemMemorySize)
ADRL (r1, PcdGet64 (PcdSystemMemoryBase))
ADRL (r2, PcdGet64 (PcdSystemMemorySize))
mov sp, r5
bl FindMemnode
teq r0, #0
@ -90,7 +71,7 @@ ASM_PFX(ArmPlatformPeiBootAction):
// image header at the base of this image (defined in the FDF), and record the
// pointer in PcdDeviceTreeInitialBaseAddress.
//
ldr r8, =PcdGet64 (PcdDeviceTreeInitialBaseAddress)
ADRL (r8, PcdGet64 (PcdDeviceTreeInitialBaseAddress))
add r9, r9, #0x40
str r9, [r8]
@ -101,20 +82,22 @@ ASM_PFX(ArmPlatformPeiBootAction):
.Lout:
bx r11
.LArm32LinuxMagic:
.byte 0x18, 0x28, 0x6f, 0x01
//UINTN
//ArmPlatformGetPrimaryCoreMpId (
// VOID
// );
ASM_PFX(ArmPlatformGetPrimaryCoreMpId):
LoadConstantToReg (_gPcd_FixedAtBuild_PcdArmPrimaryCore, r0)
ldr r0, [r0]
ASM_FUNC(ArmPlatformGetPrimaryCoreMpId)
MOV32 (r0, FixedPcdGet32 (PcdArmPrimaryCore))
bx lr
//UINTN
//ArmPlatformIsPrimaryCore (
// IN UINTN MpId
// );
ASM_PFX(ArmPlatformIsPrimaryCore):
ASM_FUNC(ArmPlatformIsPrimaryCore)
mov r0, #1
bx lr
@ -123,7 +106,7 @@ ASM_PFX(ArmPlatformIsPrimaryCore):
// IN UINTN MpId
// );
// With this function: CorePos = (ClusterId * 4) + CoreId
ASM_PFX(ArmPlatformGetCorePosition):
ASM_FUNC(ArmPlatformGetCorePosition)
and r1, r0, #ARM_CORE_MASK
and r0, r0, #ARM_CLUSTER_MASK
add r0, r1, r0, LSR #6
@ -133,7 +116,7 @@ ASM_PFX(ArmPlatformGetCorePosition):
//GetPhysAddrTop (
// VOID
// );
ASM_PFX(ArmGetPhysAddrTop):
ASM_FUNC(ArmGetPhysAddrTop)
mov r0, #0x00000000
mov r1, #0x10000
bx lr

39
ArmVirtPkg/PrePi/AArch64/ModuleEntryPoint.S
View File

@ -1,6 +1,6 @@
//
// Copyright (c) 2011-2013, ARM Limited. All rights reserved.
// Copyright (c) 2015, Linaro Limited. All rights reserved.
// Copyright (c) 2015-2016, Linaro Limited. All rights reserved.
//
// This program and the accompanying materials
// are licensed and made available under the terms and conditions of the BSD License
@ -13,23 +13,10 @@
//
#include <AsmMacroIoLibV8.h>
#include <Base.h>
#include <Library/PcdLib.h>
#include <AutoGen.h>
.text
.align 3
GCC_ASM_IMPORT(ArmPlatformIsPrimaryCore)
GCC_ASM_IMPORT(ArmReadMpidr)
GCC_ASM_IMPORT(ArmPlatformPeiBootAction)
GCC_ASM_IMPORT(ArmPlatformStackSet)
GCC_ASM_EXPORT(_ModuleEntryPoint)
ASM_GLOBAL ASM_PFX(mSystemMemoryEnd)
ASM_PFX(mSystemMemoryEnd): .8byte 0
ASM_PFX(_ModuleEntryPoint):
ASM_FUNC(_ModuleEntryPoint)
//
// We are built as a ET_DYN PIE executable, so we need to process all
// relative relocations regardless of whether or not we are executing from
@ -86,12 +73,11 @@ _SetupStackPosition:
// Calculate Top of the Firmware Device
ldr x2, PcdGet64 (PcdFdBaseAddress)
ldr w3, PcdGet32 (PcdFdSize)
sub x3, x3, #1
MOV32 (w3, FixedPcdGet32 (PcdFdSize) - 1)
add x3, x3, x2 // x3 = FdTop = PcdFdBaseAddress + PcdFdSize
// UEFI Memory Size (stacks are allocated in this region)
LoadConstantToReg (FixedPcdGet32(PcdSystemMemoryUefiRegionSize), x4)
MOV32 (x4, FixedPcdGet32(PcdSystemMemoryUefiRegionSize))
//
// Reserve the memory for the UEFI region (contain stacks on its top)
@ -122,9 +108,7 @@ _SetupAlignedStack:
_SetupOverflowStack:
// Case memory at the top of the address space. Ensure the top of the stack is EFI_PAGE_SIZE
// aligned (4KB)
LoadConstantToReg (EFI_PAGE_MASK, x21)
and x21, x21, x1
sub x1, x1, x21
and x1, x1, ~EFI_PAGE_MASK
_GetBaseUefiMemory:
// Calculate the Base of the UEFI Memory
@ -133,22 +117,19 @@ _GetBaseUefiMemory:
_GetStackBase:
// r1 = The top of the Mpcore Stacks
// Stack for the primary core = PrimaryCoreStack
LoadConstantToReg (FixedPcdGet32(PcdCPUCorePrimaryStackSize), x2)
MOV32 (x2, FixedPcdGet32(PcdCPUCorePrimaryStackSize))
sub x22, x1, x2
// Stack for the secondary core = Number of Cores - 1
LoadConstantToReg (FixedPcdGet32(PcdCoreCount), x0)
sub x0, x0, #1
LoadConstantToReg (FixedPcdGet32(PcdCPUCoreSecondaryStackSize), x1)
mul x1, x1, x0
MOV32 (x1, (FixedPcdGet32(PcdCoreCount) - 1) * FixedPcdGet32(PcdCPUCoreSecondaryStackSize))
sub x22, x22, x1
// x22 = The base of the MpCore Stacks (primary stack & secondary stacks)
mov x0, x22
mov x1, x20
//ArmPlatformStackSet(StackBase, MpId, PrimaryStackSize, SecondaryStackSize)
LoadConstantToReg (FixedPcdGet32(PcdCPUCorePrimaryStackSize), x2)
LoadConstantToReg (FixedPcdGet32(PcdCPUCoreSecondaryStackSize), x3)
MOV32 (x2, FixedPcdGet32(PcdCPUCorePrimaryStackSize))
MOV32 (x3, FixedPcdGet32(PcdCPUCoreSecondaryStackSize))
bl ASM_PFX(ArmPlatformStackSet)
// Is it the Primary Core ?
@ -170,3 +151,5 @@ _PrepareArguments:
_NeverReturn:
b _NeverReturn
ASM_PFX(mSystemMemoryEnd): .8byte 0

64
ArmVirtPkg/PrePi/Arm/ModuleEntryPoint.S
View File

@ -1,6 +1,6 @@
//
// Copyright (c) 2011-2013, ARM Limited. All rights reserved.
// Copyright (c) 2015, Linaro Limited. All rights reserved.
// Copyright (c) 2015-2016, Linaro Limited. All rights reserved.
//
// This program and the accompanying materials
// are licensed and made available under the terms and conditions of the BSD License
@ -13,41 +13,18 @@
//
#include <AsmMacroIoLib.h>
#include <Base.h>
#include <Library/PcdLib.h>
#include <AutoGen.h>
.text
.align 3
GCC_ASM_IMPORT(ArmPlatformIsPrimaryCore)
GCC_ASM_IMPORT(ArmReadMpidr)
GCC_ASM_IMPORT(ArmPlatformPeiBootAction)
GCC_ASM_IMPORT(ArmPlatformStackSet)
GCC_ASM_EXPORT(_ModuleEntryPoint)
ASM_GLOBAL ASM_PFX(mSystemMemoryEnd)
ASM_PFX(mSystemMemoryEnd): .quad 0
__relocs:
.long __reloc_base - __relocs
.long __reloc_start - __relocs
.long __reloc_end - __relocs
ASM_PFX(_ModuleEntryPoint):
ASM_FUNC(_ModuleEntryPoint)
//
// We are built as a ET_DYN PIE executable, so we need to process all
// relative relocations if we are executing from a different offset than we
// were linked at. This is only possible if we are running from RAM.
//
adr r12, __relocs
ldrd r4, r5, [r12]
ldr r6, [r12, #8]
add r4, r4, r12
add r5, r5, r12
add r6, r6, r12
ADRL (r4, __reloc_base)
ADRL (r5, __reloc_start)
ADRL (r6, __reloc_end)
.Lreloc_loop:
cmp r5, r6
@ -85,9 +62,8 @@ ASM_PFX(_ModuleEntryPoint):
// at the top of the DRAM)
_SetupStackPosition:
// Compute Top of System Memory
ldr r12, =PcdGet64 (PcdSystemMemoryBase)
ldr r1, [r12]
ldr r12, =PcdGet64 (PcdSystemMemorySize)
LDRL (r1, PcdGet64 (PcdSystemMemoryBase))
ADRL (r12, PcdGet64 (PcdSystemMemorySize))
ldrd r2, r3, [r12]
// calculate the top of memory, and record it in mSystemMemoryEnd
@ -103,14 +79,12 @@ _SetupStackPosition:
moveq r1, r2
// Calculate Top of the Firmware Device
ldr r12, =PcdGet64 (PcdFdBaseAddress)
ldr r2, [r12]
ldr r3, =FixedPcdGet32 (PcdFdSize)
sub r3, r3, #1
LDRL (r2, PcdGet64 (PcdFdBaseAddress))
MOV32 (r3, FixedPcdGet32 (PcdFdSize) - 1)
add r3, r3, r2 // r3 = FdTop = PcdFdBaseAddress + PcdFdSize
// UEFI Memory Size (stacks are allocated in this region)
LoadConstantToReg (FixedPcdGet32(PcdSystemMemoryUefiRegionSize), r4)
MOV32 (r4, FixedPcdGet32(PcdSystemMemoryUefiRegionSize))
//
// Reserve the memory for the UEFI region (contain stacks on its top)
@ -141,9 +115,8 @@ _SetupAlignedStack:
_SetupOverflowStack:
// Case memory at the top of the address space. Ensure the top of the stack is EFI_PAGE_SIZE
// aligned (4KB)
LoadConstantToReg (EFI_PAGE_MASK, r11)
and r11, r11, r1
sub r1, r1, r11
MOV32 (r11, (~EFI_PAGE_MASK) & 0xffffffff)
and r1, r1, r11
_GetBaseUefiMemory:
// Calculate the Base of the UEFI Memory
@ -152,22 +125,19 @@ _GetBaseUefiMemory:
_GetStackBase:
// r1 = The top of the Mpcore Stacks
// Stack for the primary core = PrimaryCoreStack
LoadConstantToReg (FixedPcdGet32(PcdCPUCorePrimaryStackSize), r2)
MOV32 (r2, FixedPcdGet32(PcdCPUCorePrimaryStackSize))
sub r9, r1, r2
// Stack for the secondary core = Number of Cores - 1
LoadConstantToReg (FixedPcdGet32(PcdCoreCount), r0)
sub r0, r0, #1
LoadConstantToReg (FixedPcdGet32(PcdCPUCoreSecondaryStackSize), r1)
mul r1, r1, r0
MOV32 (r1, (FixedPcdGet32(PcdCoreCount) - 1) * FixedPcdGet32(PcdCPUCoreSecondaryStackSize))
sub r9, r9, r1
// r9 = The base of the MpCore Stacks (primary stack & secondary stacks)
mov r0, r9
mov r1, r10
//ArmPlatformStackSet(StackBase, MpId, PrimaryStackSize, SecondaryStackSize)
LoadConstantToReg (FixedPcdGet32(PcdCPUCorePrimaryStackSize), r2)
LoadConstantToReg (FixedPcdGet32(PcdCPUCoreSecondaryStackSize), r3)
MOV32 (r2, FixedPcdGet32(PcdCPUCorePrimaryStackSize))
MOV32 (r3, FixedPcdGet32(PcdCPUCoreSecondaryStackSize))
bl ASM_PFX(ArmPlatformStackSet)
// Is it the Primary Core ?
@ -189,3 +159,5 @@ _PrepareArguments:
_NeverReturn:
b _NeverReturn
ASM_PFX(mSystemMemoryEnd): .quad 0