/** @file
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* Generic Timer Description Table (GTDT)
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*
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* Copyright (c) 2018, ARM Limited. All rights reserved.
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*
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* SPDX-License-Identifier: BSD-2-Clause-Patent
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*
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**/
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#include "SgiAcpiHeader.h"
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#include <Library/AcpiLib.h>
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#include <Library/PcdLib.h>
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#include <IndustryStandard/Acpi62.h>
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#define SGI_PLATFORM_WATCHDOG_COUNT 2
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#define SGI_PLATFORM_TIMER_COUNT (SGI_PLATFORM_WATCHDOG_COUNT + 1)
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#define SGI_TIMER_FRAMES_COUNT 2
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#define SYSTEM_TIMER_BASE_ADDRESS 0xFFFFFFFFFFFFFFFF
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#define GTDT_GLOBAL_FLAGS 0
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#define GTDT_GTIMER_FLAGS EFI_ACPI_6_2_GTDT_TIMER_FLAG_TIMER_INTERRUPT_POLARITY
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#define SGI_GT_BLOCK_CTL_BASE 0x2A810000
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#define SGI_GT_BLOCK_FRAME1_CTL_BASE 0x2A820000
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#define SGI_GT_BLOCK_FRAME1_CTL_EL0_BASE 0xFFFFFFFFFFFFFFFF
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#define SGI_GT_BLOCK_FRAME1_GSIV FixedPcdGet32 (PcdGtFrame1Gsiv)
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#define SGI_GT_BLOCK_FRAME0_CTL_BASE 0x2A830000
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#define SGI_GT_BLOCK_FRAME0_CTL_EL0_BASE 0xFFFFFFFFFFFFFFFF
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#define SGI_GT_BLOCK_FRAME0_GSIV FixedPcdGet32 (PcdGtFrame0Gsiv)
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#define SGI_GTX_TIMER_FLAGS 0
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#define GTX_TIMER_SECURE EFI_ACPI_6_2_GTDT_GT_BLOCK_COMMON_FLAG_SECURE_TIMER
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#define GTX_TIMER_NON_SECURE 0
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#define GTX_TIMER_SAVE_CONTEXT EFI_ACPI_6_2_GTDT_GT_BLOCK_COMMON_FLAG_ALWAYS_ON_CAPABILITY
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#define SGI_GTX_COMMON_FLAGS_S (GTX_TIMER_SAVE_CONTEXT | GTX_TIMER_SECURE)
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#define SGI_GTX_COMMON_FLAGS_NS (GTX_TIMER_SAVE_CONTEXT | GTX_TIMER_NON_SECURE)
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#define EFI_ACPI_6_2_SBSA_GENERIC_WATCHDOG_STRUCTURE_INIT( \
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RefreshFramePhysicalAddress, ControlFramePhysicalAddress, \
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WatchdogTimerGSIV, WatchdogTimerFlags) \
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{ \
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EFI_ACPI_6_2_GTDT_SBSA_GENERIC_WATCHDOG, \
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sizeof (EFI_ACPI_6_2_GTDT_SBSA_GENERIC_WATCHDOG_STRUCTURE), \
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EFI_ACPI_RESERVED_WORD, \
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RefreshFramePhysicalAddress, \
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ControlFramePhysicalAddress, \
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WatchdogTimerGSIV, \
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WatchdogTimerFlags \
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}
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#pragma pack (1)
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typedef struct {
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EFI_ACPI_6_2_GENERIC_TIMER_DESCRIPTION_TABLE Gtdt;
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EFI_ACPI_6_2_GTDT_GT_BLOCK_STRUCTURE GtBlock;
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EFI_ACPI_6_2_GTDT_GT_BLOCK_TIMER_STRUCTURE Frames[SGI_TIMER_FRAMES_COUNT];
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EFI_ACPI_6_2_GTDT_SBSA_GENERIC_WATCHDOG_STRUCTURE Watchdogs[SGI_PLATFORM_WATCHDOG_COUNT];
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} EFI_ACPI_6_2_GENERIC_TIMER_DESCRIPTION_TABLES;
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#pragma pack ()
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STATIC EFI_ACPI_6_2_GENERIC_TIMER_DESCRIPTION_TABLES Gtdt = {
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{
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ARM_ACPI_HEADER (
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EFI_ACPI_6_2_GENERIC_TIMER_DESCRIPTION_TABLE_SIGNATURE,
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EFI_ACPI_6_2_GENERIC_TIMER_DESCRIPTION_TABLES,
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EFI_ACPI_6_2_GENERIC_TIMER_DESCRIPTION_TABLE_REVISION
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),
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SYSTEM_TIMER_BASE_ADDRESS, // UINT64 PhysicalAddress
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0, // UINT32 Reserved
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FixedPcdGet32 (PcdArmArchTimerSecIntrNum), // UINT32 SecurePL1TimerGSIV
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GTDT_GTIMER_FLAGS, // UINT32 SecurePL1TimerFlags
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FixedPcdGet32 (PcdArmArchTimerIntrNum), // UINT32 NonSecurePL1TimerGSIV
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GTDT_GTIMER_FLAGS, // UINT32 NonSecurePL1TimerFlags
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FixedPcdGet32 (PcdArmArchTimerVirtIntrNum), // UINT32 VirtualTimerGSIV
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GTDT_GTIMER_FLAGS, // UINT32 VirtualTimerFlags
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FixedPcdGet32 (PcdArmArchTimerHypIntrNum), // UINT32 NonSecurePL2TimerGSIV
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GTDT_GTIMER_FLAGS, // UINT32 NonSecurePL2TimerFlags
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0xFFFFFFFFFFFFFFFF, // UINT64 CntReadBasePhysicalAddress
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SGI_PLATFORM_TIMER_COUNT, // UINT32 PlatformTimerCount
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sizeof (EFI_ACPI_6_2_GENERIC_TIMER_DESCRIPTION_TABLE) // UINT32 PlatfromTimerOffset
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},
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{
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EFI_ACPI_6_2_GTDT_GT_BLOCK, // UINT8 Type
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sizeof (EFI_ACPI_6_2_GTDT_GT_BLOCK_STRUCTURE) + // UINT16 Length
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sizeof (EFI_ACPI_6_2_GTDT_GT_BLOCK_TIMER_STRUCTURE) *
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SGI_TIMER_FRAMES_COUNT,
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EFI_ACPI_RESERVED_BYTE, // UINT8 Reserved
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SGI_GT_BLOCK_CTL_BASE, // UINT64 CntCtlBase
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SGI_TIMER_FRAMES_COUNT, // UINT32 GTBlockTimerCount
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sizeof (EFI_ACPI_6_2_GTDT_GT_BLOCK_STRUCTURE) // UINT32 GTBlockTimerOffset
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},
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{
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{
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0, // UINT8 GTFrameNumber
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{
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EFI_ACPI_RESERVED_BYTE,
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EFI_ACPI_RESERVED_BYTE,
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EFI_ACPI_RESERVED_BYTE
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}, // UINT8 Reserved[3]
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SGI_GT_BLOCK_FRAME0_CTL_BASE, // UINT64 CntBaseX
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SGI_GT_BLOCK_FRAME0_CTL_EL0_BASE, // UINT64 CntEL0BaseX
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SGI_GT_BLOCK_FRAME0_GSIV, // UINT32 GTxPhysicalTimerGSIV
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SGI_GTX_TIMER_FLAGS, // UINT32 GTxPhysicalTimerFlags
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0, // UINT32 GTxVirtualTimerGSIV
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0, // UINT32 GTxVirtualTimerFlags
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SGI_GTX_COMMON_FLAGS_NS // UINT32 GTxCommonFlags
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},
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{
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1, // UINT8 GTFrameNumber
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{
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EFI_ACPI_RESERVED_BYTE,
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EFI_ACPI_RESERVED_BYTE,
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EFI_ACPI_RESERVED_BYTE
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}, // UINT8 Reserved[3]
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SGI_GT_BLOCK_FRAME1_CTL_BASE, // UINT64 CntBaseX
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SGI_GT_BLOCK_FRAME1_CTL_EL0_BASE, // UINT64 CntEL0BaseX
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SGI_GT_BLOCK_FRAME1_GSIV, // UINT32 GTxPhysicalTimerGSIV
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SGI_GTX_TIMER_FLAGS, // UINT32 GTxPhysicalTimerFlags
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0, // UINT32 GTxVirtualTimerGSIV
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0, // UINT32 GTxVirtualTimerFlags
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SGI_GTX_COMMON_FLAGS_S // UINT32 GTxCommonFlags
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}
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},
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{
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EFI_ACPI_6_2_SBSA_GENERIC_WATCHDOG_STRUCTURE_INIT (
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FixedPcdGet32 (PcdGenericWatchdogRefreshBase),
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FixedPcdGet32 (PcdGenericWatchdogControlBase),
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FixedPcdGet32 (PcdWdogWS0Gsiv),
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0
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),
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EFI_ACPI_6_2_SBSA_GENERIC_WATCHDOG_STRUCTURE_INIT (
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FixedPcdGet32 (PcdGenericWatchdogRefreshBase),
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FixedPcdGet32 (PcdGenericWatchdogControlBase),
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FixedPcdGet32 (PcdWdogWS1Gsiv),
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EFI_ACPI_6_2_GTDT_SBSA_GENERIC_WATCHDOG_FLAG_SECURE_TIMER
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)
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}
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};
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//
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// Reference the table being generated to prevent the optimizer from removing the
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// data structure from the executable
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//
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VOID* CONST ReferenceAcpiTable = &Gtdt;
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