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23d6348f92
Added helper functions for reading and writing the CNTHCTL_EL2 register. Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Sami Mujawar <sami.mujawar@arm.com> Signed-off-by: Evan Lloyd <evan.lloyd@arm.com> Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
249 lines
5.3 KiB
C
249 lines
5.3 KiB
C
/** @file
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Copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>
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Copyright (c) 2011 - 2017, ARM Ltd. All rights reserved.<BR>
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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 __AARCH64_H__
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#define __AARCH64_H__
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#include <Chipset/AArch64Mmu.h>
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// ARM Interrupt ID in Exception Table
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#define ARM_ARCH_EXCEPTION_IRQ EXCEPT_AARCH64_IRQ
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// CPACR - Coprocessor Access Control Register definitions
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#define CPACR_TTA_EN (1UL << 28)
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#define CPACR_FPEN_EL1 (1UL << 20)
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#define CPACR_FPEN_FULL (3UL << 20)
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#define CPACR_CP_FULL_ACCESS 0x300000
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// Coprocessor Trap Register (CPTR)
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#define AARCH64_CPTR_TFP (1 << 10)
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// ID_AA64PFR0 - AArch64 Processor Feature Register 0 definitions
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#define AARCH64_PFR0_FP (0xF << 16)
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#define AARCH64_PFR0_GIC (0xF << 24)
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// SCR - Secure Configuration Register definitions
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#define SCR_NS (1 << 0)
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#define SCR_IRQ (1 << 1)
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#define SCR_FIQ (1 << 2)
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#define SCR_EA (1 << 3)
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#define SCR_FW (1 << 4)
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#define SCR_AW (1 << 5)
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// MIDR - Main ID Register definitions
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#define ARM_CPU_TYPE_SHIFT 4
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#define ARM_CPU_TYPE_MASK 0xFFF
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#define ARM_CPU_TYPE_AEMv8 0xD0F
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#define ARM_CPU_TYPE_A53 0xD03
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#define ARM_CPU_TYPE_A57 0xD07
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#define ARM_CPU_TYPE_A72 0xD08
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#define ARM_CPU_TYPE_A15 0xC0F
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#define ARM_CPU_TYPE_A9 0xC09
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#define ARM_CPU_TYPE_A7 0xC07
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#define ARM_CPU_TYPE_A5 0xC05
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#define ARM_CPU_REV_MASK ((0xF << 20) | (0xF) )
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#define ARM_CPU_REV(rn, pn) ((((rn) & 0xF) << 20) | ((pn) & 0xF))
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// Hypervisor Configuration Register
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#define ARM_HCR_FMO BIT3
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#define ARM_HCR_IMO BIT4
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#define ARM_HCR_AMO BIT5
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#define ARM_HCR_TSC BIT19
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#define ARM_HCR_TGE BIT27
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// Exception Syndrome Register
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#define AARCH64_ESR_EC(Ecr) ((0x3F << 26) & (Ecr))
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#define AARCH64_ESR_ISS(Ecr) ((0x1FFFFFF) & (Ecr))
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#define AARCH64_ESR_EC_SMC32 (0x13 << 26)
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#define AARCH64_ESR_EC_SMC64 (0x17 << 26)
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// AArch64 Exception Level
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#define AARCH64_EL3 0xC
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#define AARCH64_EL2 0x8
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#define AARCH64_EL1 0x4
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// Saved Program Status Register definitions
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#define SPSR_A BIT8
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#define SPSR_I BIT7
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#define SPSR_F BIT6
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#define SPSR_AARCH32 BIT4
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#define SPSR_AARCH32_MODE_USER 0x0
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#define SPSR_AARCH32_MODE_FIQ 0x1
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#define SPSR_AARCH32_MODE_IRQ 0x2
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#define SPSR_AARCH32_MODE_SVC 0x3
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#define SPSR_AARCH32_MODE_ABORT 0x7
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#define SPSR_AARCH32_MODE_UNDEF 0xB
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#define SPSR_AARCH32_MODE_SYS 0xF
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// Counter-timer Hypervisor Control register definitions
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#define CNTHCTL_EL2_EL1PCTEN BIT0
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#define CNTHCTL_EL2_EL1PCEN BIT1
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#define ARM_VECTOR_TABLE_ALIGNMENT ((1 << 11)-1)
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// Vector table offset definitions
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#define ARM_VECTOR_CUR_SP0_SYNC 0x000
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#define ARM_VECTOR_CUR_SP0_IRQ 0x080
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#define ARM_VECTOR_CUR_SP0_FIQ 0x100
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#define ARM_VECTOR_CUR_SP0_SERR 0x180
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#define ARM_VECTOR_CUR_SPx_SYNC 0x200
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#define ARM_VECTOR_CUR_SPx_IRQ 0x280
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#define ARM_VECTOR_CUR_SPx_FIQ 0x300
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#define ARM_VECTOR_CUR_SPx_SERR 0x380
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#define ARM_VECTOR_LOW_A64_SYNC 0x400
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#define ARM_VECTOR_LOW_A64_IRQ 0x480
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#define ARM_VECTOR_LOW_A64_FIQ 0x500
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#define ARM_VECTOR_LOW_A64_SERR 0x580
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#define ARM_VECTOR_LOW_A32_SYNC 0x600
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#define ARM_VECTOR_LOW_A32_IRQ 0x680
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#define ARM_VECTOR_LOW_A32_FIQ 0x700
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#define ARM_VECTOR_LOW_A32_SERR 0x780
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#define VECTOR_BASE(tbl) \
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.section .text.##tbl##,"ax"; \
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.align 11; \
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.org 0x0; \
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GCC_ASM_EXPORT(tbl); \
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ASM_PFX(tbl): \
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#define VECTOR_ENTRY(tbl, off) \
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.org off
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#define VECTOR_END(tbl) \
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.org 0x800; \
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.previous
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VOID
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EFIAPI
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ArmEnableSWPInstruction (
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VOID
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);
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UINTN
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EFIAPI
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ArmReadCbar (
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VOID
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);
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UINTN
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EFIAPI
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ArmReadTpidrurw (
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VOID
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);
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VOID
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EFIAPI
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ArmWriteTpidrurw (
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UINTN Value
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);
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UINTN
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EFIAPI
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ArmGetTCR (
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VOID
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);
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VOID
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EFIAPI
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ArmSetTCR (
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UINTN Value
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);
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UINTN
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EFIAPI
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ArmGetMAIR (
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VOID
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);
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VOID
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EFIAPI
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ArmSetMAIR (
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UINTN Value
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);
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VOID
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EFIAPI
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ArmDisableAlignmentCheck (
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VOID
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);
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VOID
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EFIAPI
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ArmEnableAlignmentCheck (
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VOID
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);
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VOID
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EFIAPI
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ArmDisableStackAlignmentCheck (
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VOID
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);
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VOID
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EFIAPI
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ArmEnableStackAlignmentCheck (
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VOID
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);
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VOID
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EFIAPI
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ArmDisableAllExceptions (
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VOID
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);
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VOID
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ArmWriteHcr (
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IN UINTN Hcr
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);
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UINTN
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ArmReadHcr (
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VOID
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);
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UINTN
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ArmReadCurrentEL (
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VOID
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);
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UINT64
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PageAttributeToGcdAttribute (
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IN UINT64 PageAttributes
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);
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UINTN
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ArmWriteCptr (
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IN UINT64 Cptr
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);
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UINT32
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ArmReadCntHctl (
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VOID
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);
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VOID
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ArmWriteCntHctl (
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IN UINT32 CntHctl
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);
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#endif // __AARCH64_H__
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