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/** @file
Copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>
Copyright (c) 2011 - 2021, Arm Limited. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#ifndef AARCH64_H_
#define AARCH64_H_
#include <AArch64/AArch64Mmu.h>
// ARM Interrupt ID in Exception Table
#define ARM_ARCH_EXCEPTION_IRQ EXCEPT_AARCH64_IRQ
// CPACR - Coprocessor Access Control Register definitions
#define CPACR_TTA_EN (1UL << 28)
#define CPACR_FPEN_EL1 (1UL << 20)
#define CPACR_FPEN_FULL (3UL << 20)
#define CPACR_CP_FULL_ACCESS 0x300000
// Coprocessor Trap Register (CPTR)
#define AARCH64_CPTR_TFP (1 << 10)
// ID_AA64MMFR1 - AArch64 Memory Model Feature Register 0 definitions
#define AARCH64_MMFR1_VH (0xF << 8)
// ID_AA64PFR0 - AArch64 Processor Feature Register 0 definitions
#define AARCH64_PFR0_FP (0xF << 16)
#define AARCH64_PFR0_GIC (0xF << 24)
// ID_AA64DFR0 - AArch64 Debug Feature Register 0 definitions
#define AARCH64_DFR0_TRACEVER (0xFULL << 4)
#define AARCH64_DFR0_TRBE (0xFULL << 44)
// SCR - Secure Configuration Register definitions
#define SCR_NS (1 << 0)
#define SCR_IRQ (1 << 1)
#define SCR_FIQ (1 << 2)
#define SCR_EA (1 << 3)
#define SCR_FW (1 << 4)
#define SCR_AW (1 << 5)
// MIDR - Main ID Register definitions
#define ARM_CPU_TYPE_SHIFT 4
#define ARM_CPU_TYPE_MASK 0xFFF
#define ARM_CPU_TYPE_AEMV8 0xD0F
#define ARM_CPU_TYPE_A53 0xD03
#define ARM_CPU_TYPE_A57 0xD07
#define ARM_CPU_TYPE_A72 0xD08
#define ARM_CPU_TYPE_A15 0xC0F
#define ARM_CPU_TYPE_A9 0xC09
#define ARM_CPU_TYPE_A7 0xC07
#define ARM_CPU_TYPE_A5 0xC05
#define ARM_CPU_REV_MASK ((0xF << 20) | (0xF) )
#define ARM_CPU_REV(rn, pn) ((((rn) & 0xF) << 20) | ((pn) & 0xF))
// Hypervisor Configuration Register
#define ARM_HCR_FMO BIT3
#define ARM_HCR_IMO BIT4
#define ARM_HCR_AMO BIT5
#define ARM_HCR_TSC BIT19
#define ARM_HCR_TGE BIT27
// Exception Syndrome Register
#define AARCH64_ESR_EC(Ecr) ((0x3F << 26) & (Ecr))
#define AARCH64_ESR_ISS(Ecr) ((0x1FFFFFF) & (Ecr))
#define AARCH64_ESR_EC_SMC32 (0x13 << 26)
#define AARCH64_ESR_EC_SMC64 (0x17 << 26)
// AArch64 Exception Level
#define AARCH64_EL3 0xC
#define AARCH64_EL2 0x8
#define AARCH64_EL1 0x4
// Saved Program Status Register definitions
#define SPSR_A BIT8
#define SPSR_I BIT7
#define SPSR_F BIT6
#define SPSR_AARCH32 BIT4
#define SPSR_AARCH32_MODE_USER 0x0
#define SPSR_AARCH32_MODE_FIQ 0x1
#define SPSR_AARCH32_MODE_IRQ 0x2
#define SPSR_AARCH32_MODE_SVC 0x3
#define SPSR_AARCH32_MODE_ABORT 0x7
#define SPSR_AARCH32_MODE_UNDEF 0xB
#define SPSR_AARCH32_MODE_SYS 0xF
// Counter-timer Hypervisor Control register definitions
#define CNTHCTL_EL2_EL1PCTEN BIT0
#define CNTHCTL_EL2_EL1PCEN BIT1
#define ARM_VECTOR_TABLE_ALIGNMENT ((1 << 11)-1)
// Vector table offset definitions
#define ARM_VECTOR_CUR_SP0_SYNC 0x000
#define ARM_VECTOR_CUR_SP0_IRQ 0x080
#define ARM_VECTOR_CUR_SP0_FIQ 0x100
#define ARM_VECTOR_CUR_SP0_SERR 0x180
#define ARM_VECTOR_CUR_SPX_SYNC 0x200
#define ARM_VECTOR_CUR_SPX_IRQ 0x280
#define ARM_VECTOR_CUR_SPX_FIQ 0x300
#define ARM_VECTOR_CUR_SPX_SERR 0x380
#define ARM_VECTOR_LOW_A64_SYNC 0x400
#define ARM_VECTOR_LOW_A64_IRQ 0x480
#define ARM_VECTOR_LOW_A64_FIQ 0x500
#define ARM_VECTOR_LOW_A64_SERR 0x580
#define ARM_VECTOR_LOW_A32_SYNC 0x600
#define ARM_VECTOR_LOW_A32_IRQ 0x680
#define ARM_VECTOR_LOW_A32_FIQ 0x700
#define ARM_VECTOR_LOW_A32_SERR 0x780
// The ID_AA64ISAR2_EL1 register is not recognized by older
// assemblers, we need to define it here.
#define ID_AA64ISAR2_EL1 S3_0_C0_C6_2
// The ID_AA64MMFR2_EL1 register was added in ARMv8.2. Since we
// build for ARMv8.0, we need to define the register here.
#define ID_AA64MMFR2_EL1 S3_0_C0_C7_2
#define VECTOR_BASE(tbl) \
.section .text.##tbl##,"ax"; \
.align 11; \
.org 0x0; \
GCC_ASM_EXPORT(tbl); \
ASM_PFX(tbl): \
#define VECTOR_ENTRY(tbl, off) \
.org off
#define VECTOR_END(tbl) \
.org 0x800; \
.previous
VOID
EFIAPI
ArmEnableSWPInstruction (
VOID
);
UINTN
EFIAPI
ArmReadCbar (
VOID
);
UINTN
EFIAPI
ArmReadTpidrurw (
VOID
);
VOID
EFIAPI
ArmWriteTpidrurw (
UINTN Value
);
UINTN
EFIAPI
ArmGetTCR (
VOID
);
VOID
EFIAPI
ArmSetTCR (
UINTN Value
);
UINTN
EFIAPI
ArmGetMAIR (
VOID
);
VOID
EFIAPI
ArmSetMAIR (
UINTN Value
);
VOID
EFIAPI
ArmDisableAlignmentCheck (
VOID
);
VOID
EFIAPI
ArmEnableAlignmentCheck (
VOID
);
VOID
EFIAPI
ArmDisableStackAlignmentCheck (
VOID
);
VOID
EFIAPI
ArmEnableStackAlignmentCheck (
VOID
);
VOID
EFIAPI
ArmDisableAllExceptions (
VOID
);
VOID
ArmWriteHcr (
IN UINTN Hcr
);
UINTN
ArmReadHcr (
VOID
);
UINTN
ArmReadCurrentEL (
VOID
);
UINT32
ArmReadCntHctl (
VOID
);
VOID
ArmWriteCntHctl (
IN UINT32 CntHctl
);
#endif // AARCH64_H_
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