ArmPlatformPkg: Added Aarch64 support
Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Harry Liebel <Harry.Liebel@arm.com> Signed-off-by: Olivier Martin <olivier.martin@arm.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@14489 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
Harry Liebel
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oliviermartin
oliviermartin
parent
93deac7e25
commit
1bc8326695
@@ -0,0 +1,129 @@
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//
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// Copyright (c) 2012-2013, ARM Limited. All rights reserved.
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//
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// This program and the accompanying materials
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// are licensed and made available under the terms and conditions of the BSD License
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// which accompanies this distribution. The full text of the license may be found at
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// http://opensource.org/licenses/bsd-license.php
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//
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// THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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// WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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//
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//
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#include <AsmMacroIoLib.h>
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#include <Base.h>
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#include <AutoGen.h>
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.text
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.align 3
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GCC_ASM_EXPORT(ArmPlatformStackSet)
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GCC_ASM_EXPORT(ArmPlatformStackSetPrimary)
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GCC_ASM_EXPORT(ArmPlatformStackSetSecondary)
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GCC_ASM_IMPORT(ArmPlatformIsPrimaryCore)
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GCC_ASM_IMPORT(ArmPlatformGetCorePosition)
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GCC_ASM_IMPORT(ArmPlatformGetPrimaryCoreMpId)
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GCC_ASM_IMPORT(gPcd_FixedAtBuild_PcdCoreCount)
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//VOID
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//ArmPlatformStackSet (
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// IN UINTN StackBase,
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// IN UINTN MpId,
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// IN UINTN PrimaryStackSize,
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// IN UINTN SecondaryStackSize
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// );
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ASM_PFX(ArmPlatformStackSet):
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// Save parameters
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mov x6, x3
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mov x5, x2
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mov x4, x1
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mov x3, x0
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// Save the Link register
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mov x7, x30
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// Identify Stack
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mov x0, x1
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bl ASM_PFX(ArmPlatformIsPrimaryCore)
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cmp x0, #1
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// Restore parameters
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mov x0, x3
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mov x1, x4
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mov x2, x5
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mov x3, x6
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// Restore the Link register
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mov x30, x7
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// Should be ASM_PFX(ArmPlatformStackSetPrimary) but generate linker error 'unsupported ELF EM_AARCH64'
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b.eq ArmPlatformStackSetPrimaryL
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// Should be ASM_PFX(ArmPlatformStackSetSecondary) but generate linker error 'unsupported ELF EM_AARCH64'
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b.ne ArmPlatformStackSetSecondaryL
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//VOID
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//ArmPlatformStackSetPrimary (
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// IN UINTN StackBase,
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// IN UINTN MpId,
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// IN UINTN PrimaryStackSize,
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// IN UINTN SecondaryStackSize
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// );
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ArmPlatformStackSetPrimaryL:
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ASM_PFX(ArmPlatformStackSetPrimary):
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// Save the Link register
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mov x4, x30
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// Add stack of primary stack to StackBase
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add x0, x0, x2
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// Compute SecondaryCoresCount * SecondaryCoreStackSize
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LoadConstantToReg (_gPcd_FixedAtBuild_PcdCoreCount, x1)
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ldr w1, [x1]
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sub x1, x1, #1
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mul x3, x3, x1
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// Set Primary Stack ((StackBase + PrimaryStackSize) + (SecondaryCoresCount * SecondaryCoreStackSize))
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add sp, x0, x3
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br x4
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//VOID
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//ArmPlatformStackSetSecondary (
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// IN UINTN StackBase,
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// IN UINTN MpId,
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// IN UINTN PrimaryStackSize,
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// IN UINTN SecondaryStackSize
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// );
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ArmPlatformStackSetSecondaryL:
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ASM_PFX(ArmPlatformStackSetSecondary):
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// Save the Link register
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mov x4, x30
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mov sp, x0
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// Get Core Position
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mov x0, x1
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bl ASM_PFX(ArmPlatformGetCorePosition)
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mov x5, x0
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// Get Primary Core Position
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bl ASM_PFX(ArmPlatformGetPrimaryCoreMpId)
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bl ASM_PFX(ArmPlatformGetCorePosition)
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// Get Secondary Core Position. We should get consecutive secondary stack number from 1...(CoreCount-1)
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cmp x5, x0
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b.ls 1f
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// Decrement the position if after the primary core
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sub x5, x5, #1
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1:
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add x5, x5, #1
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// Compute top of the secondary stack
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mul x3, x3, x5
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// Set stack
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add sp, sp, x3
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br x4
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@@ -1,5 +1,5 @@
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//
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// Copyright (c) 2012, ARM Limited. All rights reserved.
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// Copyright (c) 2012-2013, ARM Limited. All rights reserved.
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//
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// This program and the accompanying materials
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// are licensed and made available under the terms and conditions of the BSD License
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@@ -38,12 +38,12 @@ ASM_PFX(ArmPlatformStackSet):
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// Identify Stack
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// Mask for ClusterId|CoreId
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LoadConstantToReg (0xFFFF, r4)
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and r1, r1, r4
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and r1, r1, r4
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// Is it the Primary Core ?
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LoadConstantToReg (_gPcd_FixedAtBuild_PcdArmPrimaryCore, r4)
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ldr r4, [r4]
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ldr r4, [r4]
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cmp r1, r4
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beq ASM_PFX(ArmPlatformStackSetPrimary)
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beq ASM_PFX(ArmPlatformStackSetPrimary)
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bne ASM_PFX(ArmPlatformStackSetSecondary)
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//VOID
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@@ -54,19 +54,19 @@ ASM_PFX(ArmPlatformStackSet):
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// IN UINTN SecondaryStackSize
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// );
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ASM_PFX(ArmPlatformStackSetPrimary):
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mov r4, lr
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mov r4, lr
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// Add stack of primary stack to StackBase
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add r0, r0, r2
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add r0, r0, r2
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// Compute SecondaryCoresCount * SecondaryCoreStackSize
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LoadConstantToReg (_gPcd_FixedAtBuild_PcdCoreCount, r1)
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ldr r1, [r1]
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sub r1, #1
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mul r3, r3, r1
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ldr r1, [r1]
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sub r1, #1
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mul r3, r3, r1
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// Set Primary Stack ((StackBase + PrimaryStackSize) + (SecondaryCoresCount * SecondaryCoreStackSize))
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add sp, r0, r3
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add sp, r0, r3
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bx r4
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@@ -78,29 +78,29 @@ ASM_PFX(ArmPlatformStackSetPrimary):
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// IN UINTN SecondaryStackSize
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// );
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ASM_PFX(ArmPlatformStackSetSecondary):
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mov r4, lr
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mov r4, lr
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mov sp, r0
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// Get Core Position
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mov r0, r1
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mov r0, r1
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bl ASM_PFX(ArmPlatformGetCorePosition)
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mov r5, r0
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mov r5, r0
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// Get Primary Core Position
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LoadConstantToReg (_gPcd_FixedAtBuild_PcdArmPrimaryCore, r0)
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ldr r0, [r0]
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ldr r0, [r0]
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bl ASM_PFX(ArmPlatformGetCorePosition)
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// Get Secondary Core Position. We should get consecutive secondary stack number from 1...(CoreCount-1)
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cmp r5, r0
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cmp r5, r0
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subhi r5, r5, #1
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add r5, r5, #1
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add r5, r5, #1
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// Compute top of the secondary stack
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mul r3, r3, r5
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mul r3, r3, r5
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// Set stack
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add sp, sp, r3
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add sp, sp, r3
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bx r4
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@@ -30,6 +30,9 @@
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Arm/ArmPlatformStackLib.asm | RVCT
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Arm/ArmPlatformStackLib.S | GCC
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[Sources.AARCH64]
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AArch64/ArmPlatformStackLib.S | GCC
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[FixedPcd]
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gArmPlatformTokenSpaceGuid.PcdCoreCount
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