mirror of
https://github.com/acidanthera/audk.git
synced 2025-07-31 01:24:12 +02:00
e69e1eea2c
Allow other architectures to reuse the AcpiFadtLib by extracting the Arm specific part of the table generation. Suggested-by: Sunil V L <sunilvl@ventanamicro.com> Signed-off-by: Pierre Gondois <pierre.gondois@arm.com> Reviewed-by: Sami Mujawar <sami.mujawar@arm.com>
127 lines
3.7 KiB
C
127 lines
3.7 KiB
C
/** @file
|
|
ARM FADT Table Helpers
|
|
|
|
Copyright (c) 2017 - 2023, Arm Limited. All rights reserved.
|
|
SPDX-License-Identifier: BSD-2-Clause-Patent
|
|
|
|
@par Reference(s):
|
|
- ACPI 6.5 Specification, Aug 29, 2022
|
|
|
|
**/
|
|
|
|
#include <Library/AcpiLib.h>
|
|
#include <Library/DebugLib.h>
|
|
#include <Protocol/AcpiTable.h>
|
|
|
|
// Module specific include files.
|
|
#include <AcpiTableGenerator.h>
|
|
#include <ConfigurationManagerObject.h>
|
|
#include <ConfigurationManagerHelper.h>
|
|
#include <Library/TableHelperLib.h>
|
|
#include <Protocol/ConfigurationManagerProtocol.h>
|
|
#include "FadtGenerator.h"
|
|
|
|
/** ARM Standard FADT Generator
|
|
|
|
Requirements:
|
|
The following Configuration Manager Object(s) are required by
|
|
this Generator:
|
|
- EArmObjBootArchInfo
|
|
*/
|
|
|
|
/** This macro expands to a function that retrieves the Boot
|
|
Architecture Information from the Configuration Manager.
|
|
*/
|
|
GET_OBJECT_LIST (
|
|
EObjNameSpaceArm,
|
|
EArmObjBootArchInfo,
|
|
CM_ARM_BOOT_ARCH_INFO
|
|
);
|
|
|
|
/** This macro defines the FADT flag options for ARM Platforms.
|
|
*/
|
|
#define FADT_FLAGS (EFI_ACPI_6_5_HW_REDUCED_ACPI | \
|
|
EFI_ACPI_6_5_LOW_POWER_S0_IDLE_CAPABLE)
|
|
|
|
/** Updates the Architecture specific information in the FADT Table.
|
|
|
|
@param [in] CfgMgrProtocol Pointer to the Configuration Manager
|
|
Protocol Interface.
|
|
@param [in, out] Fadt Pointer to the constructed ACPI Table.
|
|
|
|
@retval EFI_SUCCESS Success.
|
|
@retval EFI_INVALID_PARAMETER A parameter is invalid.
|
|
@retval EFI_NOT_FOUND The required object was not found.
|
|
@retval EFI_BAD_BUFFER_SIZE The size returned by the Configuration
|
|
Manager is less than the Object size for the
|
|
requested object.
|
|
**/
|
|
STATIC
|
|
EFI_STATUS
|
|
EFIAPI
|
|
ArmFadtBootArchInfoUpdate (
|
|
IN CONST EDKII_CONFIGURATION_MANAGER_PROTOCOL *CONST CfgMgrProtocol,
|
|
IN OUT EFI_ACPI_6_5_FIXED_ACPI_DESCRIPTION_TABLE *Fadt
|
|
)
|
|
{
|
|
EFI_STATUS Status;
|
|
CM_ARM_BOOT_ARCH_INFO *BootArchInfo;
|
|
|
|
ASSERT (CfgMgrProtocol != NULL);
|
|
ASSERT (Fadt != NULL);
|
|
|
|
// Get the Boot Architecture flags from the Platform Configuration Manager
|
|
Status = GetEArmObjBootArchInfo (
|
|
CfgMgrProtocol,
|
|
CM_NULL_TOKEN,
|
|
&BootArchInfo,
|
|
NULL
|
|
);
|
|
if (EFI_ERROR (Status)) {
|
|
DEBUG ((
|
|
DEBUG_ERROR,
|
|
"ERROR: FADT: Failed to get Boot Architecture flags. Status = %r\n",
|
|
Status
|
|
));
|
|
return Status;
|
|
}
|
|
|
|
DEBUG ((
|
|
DEBUG_INFO,
|
|
"FADT BootArchFlag = 0x%x\n",
|
|
BootArchInfo->BootArchFlags
|
|
));
|
|
|
|
Fadt->ArmBootArch = BootArchInfo->BootArchFlags;
|
|
|
|
return Status;
|
|
}
|
|
|
|
/** Updates the Architecture specific information in the FADT Table.
|
|
|
|
@param [in] CfgMgrProtocol Pointer to the Configuration Manager
|
|
Protocol Interface.
|
|
@param [in, out] Fadt Pointer to the constructed ACPI Table.
|
|
|
|
@retval EFI_SUCCESS Success.
|
|
@retval EFI_INVALID_PARAMETER A parameter is invalid.
|
|
@retval EFI_NOT_FOUND The required object was not found.
|
|
@retval EFI_BAD_BUFFER_SIZE The size returned by the Configuration
|
|
Manager is less than the Object size for the
|
|
requested object.
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
FadtArchUpdate (
|
|
IN CONST EDKII_CONFIGURATION_MANAGER_PROTOCOL *CONST CfgMgrProtocol,
|
|
IN OUT EFI_ACPI_6_5_FIXED_ACPI_DESCRIPTION_TABLE *Fadt
|
|
)
|
|
{
|
|
ASSERT (CfgMgrProtocol != NULL);
|
|
ASSERT (Fadt != NULL);
|
|
|
|
Fadt->Flags = FADT_FLAGS;
|
|
|
|
return ArmFadtBootArchInfoUpdate (CfgMgrProtocol, Fadt);
|
|
}
|