3356211b9c
AcpiLib is a library to help working with ACPI Tables. In this initial implementation, the library provides: - a helper function to locate and install the ACPI Tables within a Firmware Volume - Some helper macros to initialize some ACPI structures Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Olivier Martin <olivier.martin@arm.com> Reviewed-by: Graeme Gregory <graeme.gregory@linaro.org> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@16650 6f19259b-4bc3-4df7-8a09-765794883524
63 lines
2.2 KiB
C
63 lines
2.2 KiB
C
/** @file
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Helper Library for ACPI
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Copyright (c) 2014, ARM Ltd. All rights reserved.
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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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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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#ifndef __ACPI_LIB_H__
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#define __ACPI_LIB_H__
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#include <Uefi.h>
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//
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// Macros for the Generic Address Space
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//
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#define NULL_GAS { EFI_ACPI_5_0_SYSTEM_MEMORY, 0, 0, EFI_ACPI_5_0_UNDEFINED, 0L }
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#define ARM_GAS8(Address) { EFI_ACPI_5_0_SYSTEM_MEMORY, 8, 0, EFI_ACPI_5_0_BYTE, Address }
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#define ARM_GAS16(Address) { EFI_ACPI_5_0_SYSTEM_MEMORY, 16, 0, EFI_ACPI_5_0_WORD, Address }
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#define ARM_GAS32(Address) { EFI_ACPI_5_0_SYSTEM_MEMORY, 32, 0, EFI_ACPI_5_0_DWORD, Address }
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#define ARM_GASN(Address) { EFI_ACPI_5_0_SYSTEM_MEMORY, 0, 0, EFI_ACPI_5_0_DWORD, Address }
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//
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// Macros for the Multiple APIC Description Table (MADT)
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//
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#define EFI_ACPI_5_0_GIC_DISTRIBUTOR_INIT(GicDistHwId, GicDistBase, GicDistVector) \
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{ \
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EFI_ACPI_5_0_GICD, sizeof (EFI_ACPI_5_0_GIC_DISTRIBUTOR_STRUCTURE), EFI_ACPI_RESERVED_WORD, \
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GicDistHwId, GicDistBase, GicDistVector, EFI_ACPI_RESERVED_DWORD \
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}
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// Note the parking protocol is configured by UEFI if required
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#define EFI_ACPI_5_0_GIC_STRUCTURE_INIT(GicId, AcpiCpuId, Flags, PmuIrq, GicBase) \
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{ \
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EFI_ACPI_5_0_GIC, sizeof (EFI_ACPI_5_0_GIC_STRUCTURE), EFI_ACPI_RESERVED_WORD, \
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GicId, AcpiCpuId, Flags, 0, PmuIrq, 0, GicBase \
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}
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/**
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Locate and Install the ACPI tables from the Firmware Volume
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@param AcpiFile Guid of the ACPI file into the Firmware Volume
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@return EFI_SUCCESS The function completed successfully.
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@return EFI_NOT_FOUND The protocol could not be located.
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@return EFI_OUT_OF_RESOURCES There are not enough resources to find the protocol.
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**/
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EFI_STATUS
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LocateAndInstallAcpiFromFv (
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IN CONST EFI_GUID* AcpiFile
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);
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#endif // __ACPI_LIB_H__
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