a0f56915a0
Annotate functions with ASM_FUNC() so that they are emitted into separate sections. While we're at it, replace some inefficient uses of LoadConstantToReg() Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
59 lines
1.4 KiB
ArmAsm
59 lines
1.4 KiB
ArmAsm
/** @file
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*
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* Copyright (c) 2013-2014, 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 <AsmMacroIoLibV8.h>
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#include <Library/ArmLib.h>
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//UINTN
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//ArmPlatformGetCorePosition (
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// IN UINTN MpId
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// );
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// With this function: CorePos = (ClusterId * 2) + CoreId
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ASM_FUNC(ArmPlatformGetCorePosition)
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and x1, x0, #ARM_CORE_MASK
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and x0, x0, #ARM_CLUSTER_MASK
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add x0, x1, x0, LSR #7
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ret
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//UINTN
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//ArmPlatformGetPrimaryCoreMpId (
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// VOID
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// );
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ASM_FUNC(ArmPlatformGetPrimaryCoreMpId)
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ldr w0, PrimaryCoreMpid
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ret
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//UINTN
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//ArmPlatformIsPrimaryCore (
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// IN UINTN MpId
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// );
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ASM_FUNC(ArmPlatformIsPrimaryCore)
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MOV32 (w1, FixedPcdGet32 (PcdArmPrimaryCoreMask))
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and x0, x0, x1
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ldr w1, PrimaryCoreMpid
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cmp w0, w1
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cset x0, eq
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ret
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ASM_FUNC(ArmPlatformPeiBootAction)
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// The trusted firmware passes the primary CPU MPID through x0 register.
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// Save it in a variable.
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adr x1, PrimaryCoreMpid
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str w0, [x1]
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ret
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PrimaryCoreMpid: .word 0x0
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