| /* SPDX-License-Identifier: GPL-2.0-only */ |
| /* |
| * Macros for accessing system registers with older binutils. |
| * |
| * Copyright (C) 2014 ARM Ltd. |
| * Author: Catalin Marinas <catalin.marinas@arm.com> |
| */ |
| |
| #ifndef __ASM_SYSREG_H |
| #define __ASM_SYSREG_H |
| |
| #include <linux/bits.h> |
| #include <linux/stringify.h> |
| |
| #include <asm/gpr-num.h> |
| |
| /* |
| * ARMv8 ARM reserves the following encoding for system registers: |
| * (Ref: ARMv8 ARM, Section: "System instruction class encoding overview", |
| * C5.2, version:ARM DDI 0487A.f) |
| * [20-19] : Op0 |
| * [18-16] : Op1 |
| * [15-12] : CRn |
| * [11-8] : CRm |
| * [7-5] : Op2 |
| */ |
| #define Op0_shift 19 |
| #define Op0_mask 0x3 |
| #define Op1_shift 16 |
| #define Op1_mask 0x7 |
| #define CRn_shift 12 |
| #define CRn_mask 0xf |
| #define CRm_shift 8 |
| #define CRm_mask 0xf |
| #define Op2_shift 5 |
| #define Op2_mask 0x7 |
| |
| #define sys_reg(op0, op1, crn, crm, op2) \ |
| (((op0) << Op0_shift) | ((op1) << Op1_shift) | \ |
| ((crn) << CRn_shift) | ((crm) << CRm_shift) | \ |
| ((op2) << Op2_shift)) |
| |
| #define sys_insn sys_reg |
| |
| #define sys_reg_Op0(id) (((id) >> Op0_shift) & Op0_mask) |
| #define sys_reg_Op1(id) (((id) >> Op1_shift) & Op1_mask) |
| #define sys_reg_CRn(id) (((id) >> CRn_shift) & CRn_mask) |
| #define sys_reg_CRm(id) (((id) >> CRm_shift) & CRm_mask) |
| #define sys_reg_Op2(id) (((id) >> Op2_shift) & Op2_mask) |
| |
| #ifndef CONFIG_BROKEN_GAS_INST |
| |
| #ifdef __ASSEMBLY__ |
| // The space separator is omitted so that __emit_inst(x) can be parsed as |
| // either an assembler directive or an assembler macro argument. |
| #define __emit_inst(x) .inst(x) |
| #else |
| #define __emit_inst(x) ".inst " __stringify((x)) "\n\t" |
| #endif |
| |
| #else /* CONFIG_BROKEN_GAS_INST */ |
| |
| #ifndef CONFIG_CPU_BIG_ENDIAN |
| #define __INSTR_BSWAP(x) (x) |
| #else /* CONFIG_CPU_BIG_ENDIAN */ |
| #define __INSTR_BSWAP(x) ((((x) << 24) & 0xff000000) | \ |
| (((x) << 8) & 0x00ff0000) | \ |
| (((x) >> 8) & 0x0000ff00) | \ |
| (((x) >> 24) & 0x000000ff)) |
| #endif /* CONFIG_CPU_BIG_ENDIAN */ |
| |
| #ifdef __ASSEMBLY__ |
| #define __emit_inst(x) .long __INSTR_BSWAP(x) |
| #else /* __ASSEMBLY__ */ |
| #define __emit_inst(x) ".long " __stringify(__INSTR_BSWAP(x)) "\n\t" |
| #endif /* __ASSEMBLY__ */ |
| |
| #endif /* CONFIG_BROKEN_GAS_INST */ |
| |
| /* |
| * Instructions for modifying PSTATE fields. |
| * As per Arm ARM for v8-A, Section "C.5.1.3 op0 == 0b00, architectural hints, |
| * barriers and CLREX, and PSTATE access", ARM DDI 0487 C.a, system instructions |
| * for accessing PSTATE fields have the following encoding: |
| * Op0 = 0, CRn = 4 |
| * Op1, Op2 encodes the PSTATE field modified and defines the constraints. |
| * CRm = Imm4 for the instruction. |
| * Rt = 0x1f |
| */ |
| #define pstate_field(op1, op2) ((op1) << Op1_shift | (op2) << Op2_shift) |
| #define PSTATE_Imm_shift CRm_shift |
| #define SET_PSTATE(x, r) __emit_inst(0xd500401f | PSTATE_ ## r | ((!!x) << PSTATE_Imm_shift)) |
| |
| #define PSTATE_PAN pstate_field(0, 4) |
| #define PSTATE_UAO pstate_field(0, 3) |
| #define PSTATE_SSBS pstate_field(3, 1) |
| #define PSTATE_DIT pstate_field(3, 2) |
| #define PSTATE_TCO pstate_field(3, 4) |
| |
| #define SET_PSTATE_PAN(x) SET_PSTATE((x), PAN) |
| #define SET_PSTATE_UAO(x) SET_PSTATE((x), UAO) |
| #define SET_PSTATE_SSBS(x) SET_PSTATE((x), SSBS) |
| #define SET_PSTATE_DIT(x) SET_PSTATE((x), DIT) |
| #define SET_PSTATE_TCO(x) SET_PSTATE((x), TCO) |
| |
| #define set_pstate_pan(x) asm volatile(SET_PSTATE_PAN(x)) |
| #define set_pstate_uao(x) asm volatile(SET_PSTATE_UAO(x)) |
| #define set_pstate_ssbs(x) asm volatile(SET_PSTATE_SSBS(x)) |
| #define set_pstate_dit(x) asm volatile(SET_PSTATE_DIT(x)) |
| |
| #define __SYS_BARRIER_INSN(CRm, op2, Rt) \ |
| __emit_inst(0xd5000000 | sys_insn(0, 3, 3, (CRm), (op2)) | ((Rt) & 0x1f)) |
| |
| #define SB_BARRIER_INSN __SYS_BARRIER_INSN(0, 7, 31) |
| |
| #define SYS_DC_ISW sys_insn(1, 0, 7, 6, 2) |
| #define SYS_DC_IGSW sys_insn(1, 0, 7, 6, 4) |
| #define SYS_DC_IGDSW sys_insn(1, 0, 7, 6, 6) |
| #define SYS_DC_CSW sys_insn(1, 0, 7, 10, 2) |
| #define SYS_DC_CGSW sys_insn(1, 0, 7, 10, 4) |
| #define SYS_DC_CGDSW sys_insn(1, 0, 7, 10, 6) |
| #define SYS_DC_CISW sys_insn(1, 0, 7, 14, 2) |
| #define SYS_DC_CIGSW sys_insn(1, 0, 7, 14, 4) |
| #define SYS_DC_CIGDSW sys_insn(1, 0, 7, 14, 6) |
| |
| /* |
| * Automatically generated definitions for system registers, the |
| * manual encodings below are in the process of being converted to |
| * come from here. The header relies on the definition of sys_reg() |
| * earlier in this file. |
| */ |
| #include "asm/sysreg-defs.h" |
| |
| /* |
| * System registers, organised loosely by encoding but grouped together |
| * where the architected name contains an index. e.g. ID_MMFR<n>_EL1. |
| */ |
| #define SYS_SVCR_SMSTOP_SM_EL0 sys_reg(0, 3, 4, 2, 3) |
| #define SYS_SVCR_SMSTART_SM_EL0 sys_reg(0, 3, 4, 3, 3) |
| #define SYS_SVCR_SMSTOP_SMZA_EL0 sys_reg(0, 3, 4, 6, 3) |
| |
| #define SYS_DBGBVRn_EL1(n) sys_reg(2, 0, 0, n, 4) |
| #define SYS_DBGBCRn_EL1(n) sys_reg(2, 0, 0, n, 5) |
| #define SYS_DBGWVRn_EL1(n) sys_reg(2, 0, 0, n, 6) |
| #define SYS_DBGWCRn_EL1(n) sys_reg(2, 0, 0, n, 7) |
| #define SYS_MDRAR_EL1 sys_reg(2, 0, 1, 0, 0) |
| |
| #define SYS_OSLSR_EL1 sys_reg(2, 0, 1, 1, 4) |
| #define OSLSR_EL1_OSLM_MASK (BIT(3) | BIT(0)) |
| #define OSLSR_EL1_OSLM_NI 0 |
| #define OSLSR_EL1_OSLM_IMPLEMENTED BIT(3) |
| #define OSLSR_EL1_OSLK BIT(1) |
| |
| #define SYS_OSDLR_EL1 sys_reg(2, 0, 1, 3, 4) |
| #define SYS_DBGPRCR_EL1 sys_reg(2, 0, 1, 4, 4) |
| #define SYS_DBGCLAIMSET_EL1 sys_reg(2, 0, 7, 8, 6) |
| #define SYS_DBGCLAIMCLR_EL1 sys_reg(2, 0, 7, 9, 6) |
| #define SYS_DBGAUTHSTATUS_EL1 sys_reg(2, 0, 7, 14, 6) |
| #define SYS_MDCCSR_EL0 sys_reg(2, 3, 0, 1, 0) |
| #define SYS_DBGDTR_EL0 sys_reg(2, 3, 0, 4, 0) |
| #define SYS_DBGDTRRX_EL0 sys_reg(2, 3, 0, 5, 0) |
| #define SYS_DBGDTRTX_EL0 sys_reg(2, 3, 0, 5, 0) |
| #define SYS_DBGVCR32_EL2 sys_reg(2, 4, 0, 7, 0) |
| |
| #define SYS_MIDR_EL1 sys_reg(3, 0, 0, 0, 0) |
| #define SYS_MPIDR_EL1 sys_reg(3, 0, 0, 0, 5) |
| #define SYS_REVIDR_EL1 sys_reg(3, 0, 0, 0, 6) |
| |
| #define SYS_ACTLR_EL1 sys_reg(3, 0, 1, 0, 1) |
| #define SYS_RGSR_EL1 sys_reg(3, 0, 1, 0, 5) |
| #define SYS_GCR_EL1 sys_reg(3, 0, 1, 0, 6) |
| |
| #define SYS_TRFCR_EL1 sys_reg(3, 0, 1, 2, 1) |
| |
| #define SYS_TCR_EL1 sys_reg(3, 0, 2, 0, 2) |
| |
| #define SYS_APIAKEYLO_EL1 sys_reg(3, 0, 2, 1, 0) |
| #define SYS_APIAKEYHI_EL1 sys_reg(3, 0, 2, 1, 1) |
| #define SYS_APIBKEYLO_EL1 sys_reg(3, 0, 2, 1, 2) |
| #define SYS_APIBKEYHI_EL1 sys_reg(3, 0, 2, 1, 3) |
| |
| #define SYS_APDAKEYLO_EL1 sys_reg(3, 0, 2, 2, 0) |
| #define SYS_APDAKEYHI_EL1 sys_reg(3, 0, 2, 2, 1) |
| #define SYS_APDBKEYLO_EL1 sys_reg(3, 0, 2, 2, 2) |
| #define SYS_APDBKEYHI_EL1 sys_reg(3, 0, 2, 2, 3) |
| |
| #define SYS_APGAKEYLO_EL1 sys_reg(3, 0, 2, 3, 0) |
| #define SYS_APGAKEYHI_EL1 sys_reg(3, 0, 2, 3, 1) |
| |
| #define SYS_SPSR_EL1 sys_reg(3, 0, 4, 0, 0) |
| #define SYS_ELR_EL1 sys_reg(3, 0, 4, 0, 1) |
| |
| #define SYS_ICC_PMR_EL1 sys_reg(3, 0, 4, 6, 0) |
| |
| #define SYS_AFSR0_EL1 sys_reg(3, 0, 5, 1, 0) |
| #define SYS_AFSR1_EL1 sys_reg(3, 0, 5, 1, 1) |
| #define SYS_ESR_EL1 sys_reg(3, 0, 5, 2, 0) |
| |
| #define SYS_ERRIDR_EL1 sys_reg(3, 0, 5, 3, 0) |
| #define SYS_ERRSELR_EL1 sys_reg(3, 0, 5, 3, 1) |
| #define SYS_ERXFR_EL1 sys_reg(3, 0, 5, 4, 0) |
| #define SYS_ERXCTLR_EL1 sys_reg(3, 0, 5, 4, 1) |
| #define SYS_ERXSTATUS_EL1 sys_reg(3, 0, 5, 4, 2) |
| #define SYS_ERXADDR_EL1 sys_reg(3, 0, 5, 4, 3) |
| #define SYS_ERXMISC0_EL1 sys_reg(3, 0, 5, 5, 0) |
| #define SYS_ERXMISC1_EL1 sys_reg(3, 0, 5, 5, 1) |
| #define SYS_TFSR_EL1 sys_reg(3, 0, 5, 6, 0) |
| #define SYS_TFSRE0_EL1 sys_reg(3, 0, 5, 6, 1) |
| |
| #define SYS_PAR_EL1 sys_reg(3, 0, 7, 4, 0) |
| |
| #define SYS_PAR_EL1_F BIT(0) |
| #define SYS_PAR_EL1_FST GENMASK(6, 1) |
| |
| /*** Statistical Profiling Extension ***/ |
| #define PMSEVFR_EL1_RES0_IMP \ |
| (GENMASK_ULL(47, 32) | GENMASK_ULL(23, 16) | GENMASK_ULL(11, 8) |\ |
| BIT_ULL(6) | BIT_ULL(4) | BIT_ULL(2) | BIT_ULL(0)) |
| #define PMSEVFR_EL1_RES0_V1P1 \ |
| (PMSEVFR_EL1_RES0_IMP & ~(BIT_ULL(18) | BIT_ULL(17) | BIT_ULL(11))) |
| #define PMSEVFR_EL1_RES0_V1P2 \ |
| (PMSEVFR_EL1_RES0_V1P1 & ~BIT_ULL(6)) |
| |
| /* Buffer error reporting */ |
| #define PMBSR_EL1_FAULT_FSC_SHIFT PMBSR_EL1_MSS_SHIFT |
| #define PMBSR_EL1_FAULT_FSC_MASK PMBSR_EL1_MSS_MASK |
| |
| #define PMBSR_EL1_BUF_BSC_SHIFT PMBSR_EL1_MSS_SHIFT |
| #define PMBSR_EL1_BUF_BSC_MASK PMBSR_EL1_MSS_MASK |
| |
| #define PMBSR_EL1_BUF_BSC_FULL 0x1UL |
| |
| /*** End of Statistical Profiling Extension ***/ |
| |
| #define TRBSR_EL1_BSC_MASK GENMASK(5, 0) |
| #define TRBSR_EL1_BSC_SHIFT 0 |
| |
| #define SYS_PMINTENSET_EL1 sys_reg(3, 0, 9, 14, 1) |
| #define SYS_PMINTENCLR_EL1 sys_reg(3, 0, 9, 14, 2) |
| |
| #define SYS_PMMIR_EL1 sys_reg(3, 0, 9, 14, 6) |
| |
| #define SYS_MAIR_EL1 sys_reg(3, 0, 10, 2, 0) |
| #define SYS_AMAIR_EL1 sys_reg(3, 0, 10, 3, 0) |
| |
| #define SYS_VBAR_EL1 sys_reg(3, 0, 12, 0, 0) |
| #define SYS_DISR_EL1 sys_reg(3, 0, 12, 1, 1) |
| |
| #define SYS_ICC_IAR0_EL1 sys_reg(3, 0, 12, 8, 0) |
| #define SYS_ICC_EOIR0_EL1 sys_reg(3, 0, 12, 8, 1) |
| #define SYS_ICC_HPPIR0_EL1 sys_reg(3, 0, 12, 8, 2) |
| #define SYS_ICC_BPR0_EL1 sys_reg(3, 0, 12, 8, 3) |
| #define SYS_ICC_AP0Rn_EL1(n) sys_reg(3, 0, 12, 8, 4 | n) |
| #define SYS_ICC_AP0R0_EL1 SYS_ICC_AP0Rn_EL1(0) |
| #define SYS_ICC_AP0R1_EL1 SYS_ICC_AP0Rn_EL1(1) |
| #define SYS_ICC_AP0R2_EL1 SYS_ICC_AP0Rn_EL1(2) |
| #define SYS_ICC_AP0R3_EL1 SYS_ICC_AP0Rn_EL1(3) |
| #define SYS_ICC_AP1Rn_EL1(n) sys_reg(3, 0, 12, 9, n) |
| #define SYS_ICC_AP1R0_EL1 SYS_ICC_AP1Rn_EL1(0) |
| #define SYS_ICC_AP1R1_EL1 SYS_ICC_AP1Rn_EL1(1) |
| #define SYS_ICC_AP1R2_EL1 SYS_ICC_AP1Rn_EL1(2) |
| #define SYS_ICC_AP1R3_EL1 SYS_ICC_AP1Rn_EL1(3) |
| #define SYS_ICC_DIR_EL1 sys_reg(3, 0, 12, 11, 1) |
| #define SYS_ICC_RPR_EL1 sys_reg(3, 0, 12, 11, 3) |
| #define SYS_ICC_SGI1R_EL1 sys_reg(3, 0, 12, 11, 5) |
| #define SYS_ICC_ASGI1R_EL1 sys_reg(3, 0, 12, 11, 6) |
| #define SYS_ICC_SGI0R_EL1 sys_reg(3, 0, 12, 11, 7) |
| #define SYS_ICC_IAR1_EL1 sys_reg(3, 0, 12, 12, 0) |
| #define SYS_ICC_EOIR1_EL1 sys_reg(3, 0, 12, 12, 1) |
| #define SYS_ICC_HPPIR1_EL1 sys_reg(3, 0, 12, 12, 2) |
| #define SYS_ICC_BPR1_EL1 sys_reg(3, 0, 12, 12, 3) |
| #define SYS_ICC_CTLR_EL1 sys_reg(3, 0, 12, 12, 4) |
| #define SYS_ICC_SRE_EL1 sys_reg(3, 0, 12, 12, 5) |
| #define SYS_ICC_IGRPEN0_EL1 sys_reg(3, 0, 12, 12, 6) |
| #define SYS_ICC_IGRPEN1_EL1 sys_reg(3, 0, 12, 12, 7) |
| |
| #define SYS_CNTKCTL_EL1 sys_reg(3, 0, 14, 1, 0) |
| |
| #define SYS_AIDR_EL1 sys_reg(3, 1, 0, 0, 7) |
| |
| #define SYS_RNDR_EL0 sys_reg(3, 3, 2, 4, 0) |
| #define SYS_RNDRRS_EL0 sys_reg(3, 3, 2, 4, 1) |
| |
| #define SYS_PMCR_EL0 sys_reg(3, 3, 9, 12, 0) |
| #define SYS_PMCNTENSET_EL0 sys_reg(3, 3, 9, 12, 1) |
| #define SYS_PMCNTENCLR_EL0 sys_reg(3, 3, 9, 12, 2) |
| #define SYS_PMOVSCLR_EL0 sys_reg(3, 3, 9, 12, 3) |
| #define SYS_PMSWINC_EL0 sys_reg(3, 3, 9, 12, 4) |
| #define SYS_PMSELR_EL0 sys_reg(3, 3, 9, 12, 5) |
| #define SYS_PMCEID0_EL0 sys_reg(3, 3, 9, 12, 6) |
| #define SYS_PMCEID1_EL0 sys_reg(3, 3, 9, 12, 7) |
| #define SYS_PMCCNTR_EL0 sys_reg(3, 3, 9, 13, 0) |
| #define SYS_PMXEVTYPER_EL0 sys_reg(3, 3, 9, 13, 1) |
| #define SYS_PMXEVCNTR_EL0 sys_reg(3, 3, 9, 13, 2) |
| #define SYS_PMUSERENR_EL0 sys_reg(3, 3, 9, 14, 0) |
| #define SYS_PMOVSSET_EL0 sys_reg(3, 3, 9, 14, 3) |
| |
| #define SYS_TPIDR_EL0 sys_reg(3, 3, 13, 0, 2) |
| #define SYS_TPIDRRO_EL0 sys_reg(3, 3, 13, 0, 3) |
| #define SYS_TPIDR2_EL0 sys_reg(3, 3, 13, 0, 5) |
| |
| #define SYS_SCXTNUM_EL0 sys_reg(3, 3, 13, 0, 7) |
| |
| /* Definitions for system register interface to AMU for ARMv8.4 onwards */ |
| #define SYS_AM_EL0(crm, op2) sys_reg(3, 3, 13, (crm), (op2)) |
| #define SYS_AMCR_EL0 SYS_AM_EL0(2, 0) |
| #define SYS_AMCFGR_EL0 SYS_AM_EL0(2, 1) |
| #define SYS_AMCGCR_EL0 SYS_AM_EL0(2, 2) |
| #define SYS_AMUSERENR_EL0 SYS_AM_EL0(2, 3) |
| #define SYS_AMCNTENCLR0_EL0 SYS_AM_EL0(2, 4) |
| #define SYS_AMCNTENSET0_EL0 SYS_AM_EL0(2, 5) |
| #define SYS_AMCNTENCLR1_EL0 SYS_AM_EL0(3, 0) |
| #define SYS_AMCNTENSET1_EL0 SYS_AM_EL0(3, 1) |
| |
| /* |
| * Group 0 of activity monitors (architected): |
| * op0 op1 CRn CRm op2 |
| * Counter: 11 011 1101 010:n<3> n<2:0> |
| * Type: 11 011 1101 011:n<3> n<2:0> |
| * n: 0-15 |
| * |
| * Group 1 of activity monitors (auxiliary): |
| * op0 op1 CRn CRm op2 |
| * Counter: 11 011 1101 110:n<3> n<2:0> |
| * Type: 11 011 1101 111:n<3> n<2:0> |
| * n: 0-15 |
| */ |
| |
| #define SYS_AMEVCNTR0_EL0(n) SYS_AM_EL0(4 + ((n) >> 3), (n) & 7) |
| #define SYS_AMEVTYPER0_EL0(n) SYS_AM_EL0(6 + ((n) >> 3), (n) & 7) |
| #define SYS_AMEVCNTR1_EL0(n) SYS_AM_EL0(12 + ((n) >> 3), (n) & 7) |
| #define SYS_AMEVTYPER1_EL0(n) SYS_AM_EL0(14 + ((n) >> 3), (n) & 7) |
| |
| /* AMU v1: Fixed (architecturally defined) activity monitors */ |
| #define SYS_AMEVCNTR0_CORE_EL0 SYS_AMEVCNTR0_EL0(0) |
| #define SYS_AMEVCNTR0_CONST_EL0 SYS_AMEVCNTR0_EL0(1) |
| #define SYS_AMEVCNTR0_INST_RET_EL0 SYS_AMEVCNTR0_EL0(2) |
| #define SYS_AMEVCNTR0_MEM_STALL SYS_AMEVCNTR0_EL0(3) |
| |
| #define SYS_CNTFRQ_EL0 sys_reg(3, 3, 14, 0, 0) |
| |
| #define SYS_CNTPCT_EL0 sys_reg(3, 3, 14, 0, 1) |
| #define SYS_CNTPCTSS_EL0 sys_reg(3, 3, 14, 0, 5) |
| #define SYS_CNTVCTSS_EL0 sys_reg(3, 3, 14, 0, 6) |
| |
| #define SYS_CNTP_TVAL_EL0 sys_reg(3, 3, 14, 2, 0) |
| #define SYS_CNTP_CTL_EL0 sys_reg(3, 3, 14, 2, 1) |
| #define SYS_CNTP_CVAL_EL0 sys_reg(3, 3, 14, 2, 2) |
| |
| #define SYS_CNTV_CTL_EL0 sys_reg(3, 3, 14, 3, 1) |
| #define SYS_CNTV_CVAL_EL0 sys_reg(3, 3, 14, 3, 2) |
| |
| #define SYS_AARCH32_CNTP_TVAL sys_reg(0, 0, 14, 2, 0) |
| #define SYS_AARCH32_CNTP_CTL sys_reg(0, 0, 14, 2, 1) |
| #define SYS_AARCH32_CNTPCT sys_reg(0, 0, 0, 14, 0) |
| #define SYS_AARCH32_CNTP_CVAL sys_reg(0, 2, 0, 14, 0) |
| #define SYS_AARCH32_CNTPCTSS sys_reg(0, 8, 0, 14, 0) |
| |
| #define __PMEV_op2(n) ((n) & 0x7) |
| #define __CNTR_CRm(n) (0x8 | (((n) >> 3) & 0x3)) |
| #define SYS_PMEVCNTRn_EL0(n) sys_reg(3, 3, 14, __CNTR_CRm(n), __PMEV_op2(n)) |
| #define __TYPER_CRm(n) (0xc | (((n) >> 3) & 0x3)) |
| #define SYS_PMEVTYPERn_EL0(n) sys_reg(3, 3, 14, __TYPER_CRm(n), __PMEV_op2(n)) |
| |
| #define SYS_PMCCFILTR_EL0 sys_reg(3, 3, 14, 15, 7) |
| |
| #define SYS_VPIDR_EL2 sys_reg(3, 4, 0, 0, 0) |
| #define SYS_VMPIDR_EL2 sys_reg(3, 4, 0, 0, 5) |
| |
| #define SYS_SCTLR_EL2 sys_reg(3, 4, 1, 0, 0) |
| #define SYS_ACTLR_EL2 sys_reg(3, 4, 1, 0, 1) |
| #define SYS_HCR_EL2 sys_reg(3, 4, 1, 1, 0) |
| #define SYS_MDCR_EL2 sys_reg(3, 4, 1, 1, 1) |
| #define SYS_CPTR_EL2 sys_reg(3, 4, 1, 1, 2) |
| #define SYS_HSTR_EL2 sys_reg(3, 4, 1, 1, 3) |
| #define SYS_HACR_EL2 sys_reg(3, 4, 1, 1, 7) |
| |
| #define SYS_TTBR0_EL2 sys_reg(3, 4, 2, 0, 0) |
| #define SYS_TTBR1_EL2 sys_reg(3, 4, 2, 0, 1) |
| #define SYS_TCR_EL2 sys_reg(3, 4, 2, 0, 2) |
| #define SYS_VTTBR_EL2 sys_reg(3, 4, 2, 1, 0) |
| #define SYS_VTCR_EL2 sys_reg(3, 4, 2, 1, 2) |
| |
| #define SYS_TRFCR_EL2 sys_reg(3, 4, 1, 2, 1) |
| #define SYS_HDFGRTR_EL2 sys_reg(3, 4, 3, 1, 4) |
| #define SYS_HDFGWTR_EL2 sys_reg(3, 4, 3, 1, 5) |
| #define SYS_HAFGRTR_EL2 sys_reg(3, 4, 3, 1, 6) |
| #define SYS_SPSR_EL2 sys_reg(3, 4, 4, 0, 0) |
| #define SYS_ELR_EL2 sys_reg(3, 4, 4, 0, 1) |
| #define SYS_SP_EL1 sys_reg(3, 4, 4, 1, 0) |
| #define SYS_IFSR32_EL2 sys_reg(3, 4, 5, 0, 1) |
| #define SYS_AFSR0_EL2 sys_reg(3, 4, 5, 1, 0) |
| #define SYS_AFSR1_EL2 sys_reg(3, 4, 5, 1, 1) |
| #define SYS_ESR_EL2 sys_reg(3, 4, 5, 2, 0) |
| #define SYS_VSESR_EL2 sys_reg(3, 4, 5, 2, 3) |
| #define SYS_FPEXC32_EL2 sys_reg(3, 4, 5, 3, 0) |
| #define SYS_TFSR_EL2 sys_reg(3, 4, 5, 6, 0) |
| |
| #define SYS_FAR_EL2 sys_reg(3, 4, 6, 0, 0) |
| #define SYS_HPFAR_EL2 sys_reg(3, 4, 6, 0, 4) |
| |
| #define SYS_MAIR_EL2 sys_reg(3, 4, 10, 2, 0) |
| #define SYS_AMAIR_EL2 sys_reg(3, 4, 10, 3, 0) |
| |
| #define SYS_VBAR_EL2 sys_reg(3, 4, 12, 0, 0) |
| #define SYS_RVBAR_EL2 sys_reg(3, 4, 12, 0, 1) |
| #define SYS_RMR_EL2 sys_reg(3, 4, 12, 0, 2) |
| #define SYS_VDISR_EL2 sys_reg(3, 4, 12, 1, 1) |
| #define __SYS__AP0Rx_EL2(x) sys_reg(3, 4, 12, 8, x) |
| #define SYS_ICH_AP0R0_EL2 __SYS__AP0Rx_EL2(0) |
| #define SYS_ICH_AP0R1_EL2 __SYS__AP0Rx_EL2(1) |
| #define SYS_ICH_AP0R2_EL2 __SYS__AP0Rx_EL2(2) |
| #define SYS_ICH_AP0R3_EL2 __SYS__AP0Rx_EL2(3) |
| |
| #define __SYS__AP1Rx_EL2(x) sys_reg(3, 4, 12, 9, x) |
| #define SYS_ICH_AP1R0_EL2 __SYS__AP1Rx_EL2(0) |
| #define SYS_ICH_AP1R1_EL2 __SYS__AP1Rx_EL2(1) |
| #define SYS_ICH_AP1R2_EL2 __SYS__AP1Rx_EL2(2) |
| #define SYS_ICH_AP1R3_EL2 __SYS__AP1Rx_EL2(3) |
| |
| #define SYS_ICH_VSEIR_EL2 sys_reg(3, 4, 12, 9, 4) |
| #define SYS_ICC_SRE_EL2 sys_reg(3, 4, 12, 9, 5) |
| #define SYS_ICH_HCR_EL2 sys_reg(3, 4, 12, 11, 0) |
| #define SYS_ICH_VTR_EL2 sys_reg(3, 4, 12, 11, 1) |
| #define SYS_ICH_MISR_EL2 sys_reg(3, 4, 12, 11, 2) |
| #define SYS_ICH_EISR_EL2 sys_reg(3, 4, 12, 11, 3) |
| #define SYS_ICH_ELRSR_EL2 sys_reg(3, 4, 12, 11, 5) |
| #define SYS_ICH_VMCR_EL2 sys_reg(3, 4, 12, 11, 7) |
| |
| #define __SYS__LR0_EL2(x) sys_reg(3, 4, 12, 12, x) |
| #define SYS_ICH_LR0_EL2 __SYS__LR0_EL2(0) |
| #define SYS_ICH_LR1_EL2 __SYS__LR0_EL2(1) |
| #define SYS_ICH_LR2_EL2 __SYS__LR0_EL2(2) |
| #define SYS_ICH_LR3_EL2 __SYS__LR0_EL2(3) |
| #define SYS_ICH_LR4_EL2 __SYS__LR0_EL2(4) |
| #define SYS_ICH_LR5_EL2 __SYS__LR0_EL2(5) |
| #define SYS_ICH_LR6_EL2 __SYS__LR0_EL2(6) |
| #define SYS_ICH_LR7_EL2 __SYS__LR0_EL2(7) |
| |
| #define __SYS__LR8_EL2(x) sys_reg(3, 4, 12, 13, x) |
| #define SYS_ICH_LR8_EL2 __SYS__LR8_EL2(0) |
| #define SYS_ICH_LR9_EL2 __SYS__LR8_EL2(1) |
| #define SYS_ICH_LR10_EL2 __SYS__LR8_EL2(2) |
| #define SYS_ICH_LR11_EL2 __SYS__LR8_EL2(3) |
| #define SYS_ICH_LR12_EL2 __SYS__LR8_EL2(4) |
| #define SYS_ICH_LR13_EL2 __SYS__LR8_EL2(5) |
| #define SYS_ICH_LR14_EL2 __SYS__LR8_EL2(6) |
| #define SYS_ICH_LR15_EL2 __SYS__LR8_EL2(7) |
| |
| #define SYS_CONTEXTIDR_EL2 sys_reg(3, 4, 13, 0, 1) |
| #define SYS_TPIDR_EL2 sys_reg(3, 4, 13, 0, 2) |
| |
| #define SYS_CNTVOFF_EL2 sys_reg(3, 4, 14, 0, 3) |
| #define SYS_CNTHCTL_EL2 sys_reg(3, 4, 14, 1, 0) |
| |
| /* VHE encodings for architectural EL0/1 system registers */ |
| #define SYS_SCTLR_EL12 sys_reg(3, 5, 1, 0, 0) |
| #define SYS_TTBR0_EL12 sys_reg(3, 5, 2, 0, 0) |
| #define SYS_TTBR1_EL12 sys_reg(3, 5, 2, 0, 1) |
| #define SYS_TCR_EL12 sys_reg(3, 5, 2, 0, 2) |
| #define SYS_SPSR_EL12 sys_reg(3, 5, 4, 0, 0) |
| #define SYS_ELR_EL12 sys_reg(3, 5, 4, 0, 1) |
| #define SYS_AFSR0_EL12 sys_reg(3, 5, 5, 1, 0) |
| #define SYS_AFSR1_EL12 sys_reg(3, 5, 5, 1, 1) |
| #define SYS_ESR_EL12 sys_reg(3, 5, 5, 2, 0) |
| #define SYS_TFSR_EL12 sys_reg(3, 5, 5, 6, 0) |
| #define SYS_MAIR_EL12 sys_reg(3, 5, 10, 2, 0) |
| #define SYS_AMAIR_EL12 sys_reg(3, 5, 10, 3, 0) |
| #define SYS_VBAR_EL12 sys_reg(3, 5, 12, 0, 0) |
| #define SYS_CNTKCTL_EL12 sys_reg(3, 5, 14, 1, 0) |
| #define SYS_CNTP_TVAL_EL02 sys_reg(3, 5, 14, 2, 0) |
| #define SYS_CNTP_CTL_EL02 sys_reg(3, 5, 14, 2, 1) |
| #define SYS_CNTP_CVAL_EL02 sys_reg(3, 5, 14, 2, 2) |
| #define SYS_CNTV_TVAL_EL02 sys_reg(3, 5, 14, 3, 0) |
| #define SYS_CNTV_CTL_EL02 sys_reg(3, 5, 14, 3, 1) |
| #define SYS_CNTV_CVAL_EL02 sys_reg(3, 5, 14, 3, 2) |
| |
| #define SYS_SP_EL2 sys_reg(3, 6, 4, 1, 0) |
| |
| /* Common SCTLR_ELx flags. */ |
| #define SCTLR_ELx_ENTP2 (BIT(60)) |
| #define SCTLR_ELx_DSSBS (BIT(44)) |
| #define SCTLR_ELx_ATA (BIT(43)) |
| |
| #define SCTLR_ELx_EE_SHIFT 25 |
| #define SCTLR_ELx_ENIA_SHIFT 31 |
| |
| #define SCTLR_ELx_ITFSB (BIT(37)) |
| #define SCTLR_ELx_ENIA (BIT(SCTLR_ELx_ENIA_SHIFT)) |
| #define SCTLR_ELx_ENIB (BIT(30)) |
| #define SCTLR_ELx_LSMAOE (BIT(29)) |
| #define SCTLR_ELx_nTLSMD (BIT(28)) |
| #define SCTLR_ELx_ENDA (BIT(27)) |
| #define SCTLR_ELx_EE (BIT(SCTLR_ELx_EE_SHIFT)) |
| #define SCTLR_ELx_EIS (BIT(22)) |
| #define SCTLR_ELx_IESB (BIT(21)) |
| #define SCTLR_ELx_TSCXT (BIT(20)) |
| #define SCTLR_ELx_WXN (BIT(19)) |
| #define SCTLR_ELx_ENDB (BIT(13)) |
| #define SCTLR_ELx_I (BIT(12)) |
| #define SCTLR_ELx_EOS (BIT(11)) |
| #define SCTLR_ELx_SA (BIT(3)) |
| #define SCTLR_ELx_C (BIT(2)) |
| #define SCTLR_ELx_A (BIT(1)) |
| #define SCTLR_ELx_M (BIT(0)) |
| |
| /* SCTLR_EL2 specific flags. */ |
| #define SCTLR_EL2_RES1 ((BIT(4)) | (BIT(5)) | (BIT(11)) | (BIT(16)) | \ |
| (BIT(18)) | (BIT(22)) | (BIT(23)) | (BIT(28)) | \ |
| (BIT(29))) |
| |
| #define SCTLR_EL2_BT (BIT(36)) |
| #ifdef CONFIG_CPU_BIG_ENDIAN |
| #define ENDIAN_SET_EL2 SCTLR_ELx_EE |
| #else |
| #define ENDIAN_SET_EL2 0 |
| #endif |
| |
| #define INIT_SCTLR_EL2_MMU_ON \ |
| (SCTLR_ELx_M | SCTLR_ELx_C | SCTLR_ELx_SA | SCTLR_ELx_I | \ |
| SCTLR_ELx_IESB | SCTLR_ELx_WXN | ENDIAN_SET_EL2 | \ |
| SCTLR_ELx_ITFSB | SCTLR_EL2_RES1) |
| |
| #define INIT_SCTLR_EL2_MMU_OFF \ |
| (SCTLR_EL2_RES1 | ENDIAN_SET_EL2) |
| |
| /* SCTLR_EL1 specific flags. */ |
| #ifdef CONFIG_CPU_BIG_ENDIAN |
| #define ENDIAN_SET_EL1 (SCTLR_EL1_E0E | SCTLR_ELx_EE) |
| #else |
| #define ENDIAN_SET_EL1 0 |
| #endif |
| |
| #define INIT_SCTLR_EL1_MMU_OFF \ |
| (ENDIAN_SET_EL1 | SCTLR_EL1_LSMAOE | SCTLR_EL1_nTLSMD | \ |
| SCTLR_EL1_EIS | SCTLR_EL1_TSCXT | SCTLR_EL1_EOS) |
| |
| #define INIT_SCTLR_EL1_MMU_ON \ |
| (SCTLR_ELx_M | SCTLR_ELx_C | SCTLR_ELx_SA | \ |
| SCTLR_EL1_SA0 | SCTLR_EL1_SED | SCTLR_ELx_I | \ |
| SCTLR_EL1_DZE | SCTLR_EL1_UCT | SCTLR_EL1_nTWE | \ |
| SCTLR_ELx_IESB | SCTLR_EL1_SPAN | SCTLR_ELx_ITFSB | \ |
| ENDIAN_SET_EL1 | SCTLR_EL1_UCI | SCTLR_EL1_EPAN | \ |
| SCTLR_EL1_LSMAOE | SCTLR_EL1_nTLSMD | SCTLR_EL1_EIS | \ |
| SCTLR_EL1_TSCXT | SCTLR_EL1_EOS) |
| |
| /* MAIR_ELx memory attributes (used by Linux) */ |
| #define MAIR_ATTR_DEVICE_nGnRnE UL(0x00) |
| #define MAIR_ATTR_DEVICE_nGnRE UL(0x04) |
| #define MAIR_ATTR_NORMAL_NC UL(0x44) |
| #define MAIR_ATTR_NORMAL_TAGGED UL(0xf0) |
| #define MAIR_ATTR_NORMAL UL(0xff) |
| #define MAIR_ATTR_MASK UL(0xff) |
| |
| /* Position the attr at the correct index */ |
| #define MAIR_ATTRIDX(attr, idx) ((attr) << ((idx) * 8)) |
| |
| /* id_aa64pfr0 */ |
| #define ID_AA64PFR0_EL1_ELx_64BIT_ONLY 0x1 |
| #define ID_AA64PFR0_EL1_ELx_32BIT_64BIT 0x2 |
| |
| /* id_aa64mmfr0 */ |
| #define ID_AA64MMFR0_EL1_TGRAN4_SUPPORTED_MIN 0x0 |
| #define ID_AA64MMFR0_EL1_TGRAN4_SUPPORTED_MAX 0x7 |
| #define ID_AA64MMFR0_EL1_TGRAN64_SUPPORTED_MIN 0x0 |
| #define ID_AA64MMFR0_EL1_TGRAN64_SUPPORTED_MAX 0x7 |
| #define ID_AA64MMFR0_EL1_TGRAN16_SUPPORTED_MIN 0x1 |
| #define ID_AA64MMFR0_EL1_TGRAN16_SUPPORTED_MAX 0xf |
| |
| #define ARM64_MIN_PARANGE_BITS 32 |
| |
| #define ID_AA64MMFR0_EL1_TGRAN_2_SUPPORTED_DEFAULT 0x0 |
| #define ID_AA64MMFR0_EL1_TGRAN_2_SUPPORTED_NONE 0x1 |
| #define ID_AA64MMFR0_EL1_TGRAN_2_SUPPORTED_MIN 0x2 |
| #define ID_AA64MMFR0_EL1_TGRAN_2_SUPPORTED_MAX 0x7 |
| |
| #ifdef CONFIG_ARM64_PA_BITS_52 |
| #define ID_AA64MMFR0_EL1_PARANGE_MAX ID_AA64MMFR0_EL1_PARANGE_52 |
| #else |
| #define ID_AA64MMFR0_EL1_PARANGE_MAX ID_AA64MMFR0_EL1_PARANGE_48 |
| #endif |
| |
| #if defined(CONFIG_ARM64_4K_PAGES) |
| #define ID_AA64MMFR0_EL1_TGRAN_SHIFT ID_AA64MMFR0_EL1_TGRAN4_SHIFT |
| #define ID_AA64MMFR0_EL1_TGRAN_SUPPORTED_MIN ID_AA64MMFR0_EL1_TGRAN4_SUPPORTED_MIN |
| #define ID_AA64MMFR0_EL1_TGRAN_SUPPORTED_MAX ID_AA64MMFR0_EL1_TGRAN4_SUPPORTED_MAX |
| #define ID_AA64MMFR0_EL1_TGRAN_2_SHIFT ID_AA64MMFR0_EL1_TGRAN4_2_SHIFT |
| #elif defined(CONFIG_ARM64_16K_PAGES) |
| #define ID_AA64MMFR0_EL1_TGRAN_SHIFT ID_AA64MMFR0_EL1_TGRAN16_SHIFT |
| #define ID_AA64MMFR0_EL1_TGRAN_SUPPORTED_MIN ID_AA64MMFR0_EL1_TGRAN16_SUPPORTED_MIN |
| #define ID_AA64MMFR0_EL1_TGRAN_SUPPORTED_MAX ID_AA64MMFR0_EL1_TGRAN16_SUPPORTED_MAX |
| #define ID_AA64MMFR0_EL1_TGRAN_2_SHIFT ID_AA64MMFR0_EL1_TGRAN16_2_SHIFT |
| #elif defined(CONFIG_ARM64_64K_PAGES) |
| #define ID_AA64MMFR0_EL1_TGRAN_SHIFT ID_AA64MMFR0_EL1_TGRAN64_SHIFT |
| #define ID_AA64MMFR0_EL1_TGRAN_SUPPORTED_MIN ID_AA64MMFR0_EL1_TGRAN64_SUPPORTED_MIN |
| #define ID_AA64MMFR0_EL1_TGRAN_SUPPORTED_MAX ID_AA64MMFR0_EL1_TGRAN64_SUPPORTED_MAX |
| #define ID_AA64MMFR0_EL1_TGRAN_2_SHIFT ID_AA64MMFR0_EL1_TGRAN64_2_SHIFT |
| #endif |
| |
| #define CPACR_EL1_FPEN_EL1EN (BIT(20)) /* enable EL1 access */ |
| #define CPACR_EL1_FPEN_EL0EN (BIT(21)) /* enable EL0 access, if EL1EN set */ |
| |
| #define CPACR_EL1_SMEN_EL1EN (BIT(24)) /* enable EL1 access */ |
| #define CPACR_EL1_SMEN_EL0EN (BIT(25)) /* enable EL0 access, if EL1EN set */ |
| |
| #define CPACR_EL1_ZEN_EL1EN (BIT(16)) /* enable EL1 access */ |
| #define CPACR_EL1_ZEN_EL0EN (BIT(17)) /* enable EL0 access, if EL1EN set */ |
| |
| /* GCR_EL1 Definitions */ |
| #define SYS_GCR_EL1_RRND (BIT(16)) |
| #define SYS_GCR_EL1_EXCL_MASK 0xffffUL |
| |
| #define KERNEL_GCR_EL1 (SYS_GCR_EL1_RRND | KERNEL_GCR_EL1_EXCL) |
| |
| /* RGSR_EL1 Definitions */ |
| #define SYS_RGSR_EL1_TAG_MASK 0xfUL |
| #define SYS_RGSR_EL1_SEED_SHIFT 8 |
| #define SYS_RGSR_EL1_SEED_MASK 0xffffUL |
| |
| /* TFSR{,E0}_EL1 bit definitions */ |
| #define SYS_TFSR_EL1_TF0_SHIFT 0 |
| #define SYS_TFSR_EL1_TF1_SHIFT 1 |
| #define SYS_TFSR_EL1_TF0 (UL(1) << SYS_TFSR_EL1_TF0_SHIFT) |
| #define SYS_TFSR_EL1_TF1 (UL(1) << SYS_TFSR_EL1_TF1_SHIFT) |
| |
| /* Safe value for MPIDR_EL1: Bit31:RES1, Bit30:U:0, Bit24:MT:0 */ |
| #define SYS_MPIDR_SAFE_VAL (BIT(31)) |
| |
| #define TRFCR_ELx_TS_SHIFT 5 |
| #define TRFCR_ELx_TS_MASK ((0x3UL) << TRFCR_ELx_TS_SHIFT) |
| #define TRFCR_ELx_TS_VIRTUAL ((0x1UL) << TRFCR_ELx_TS_SHIFT) |
| #define TRFCR_ELx_TS_GUEST_PHYSICAL ((0x2UL) << TRFCR_ELx_TS_SHIFT) |
| #define TRFCR_ELx_TS_PHYSICAL ((0x3UL) << TRFCR_ELx_TS_SHIFT) |
| #define TRFCR_EL2_CX BIT(3) |
| #define TRFCR_ELx_ExTRE BIT(1) |
| #define TRFCR_ELx_E0TRE BIT(0) |
| |
| /* GIC Hypervisor interface registers */ |
| /* ICH_MISR_EL2 bit definitions */ |
| #define ICH_MISR_EOI (1 << 0) |
| #define ICH_MISR_U (1 << 1) |
| |
| /* ICH_LR*_EL2 bit definitions */ |
| #define ICH_LR_VIRTUAL_ID_MASK ((1ULL << 32) - 1) |
| |
| #define ICH_LR_EOI (1ULL << 41) |
| #define ICH_LR_GROUP (1ULL << 60) |
| #define ICH_LR_HW (1ULL << 61) |
| #define ICH_LR_STATE (3ULL << 62) |
| #define ICH_LR_PENDING_BIT (1ULL << 62) |
| #define ICH_LR_ACTIVE_BIT (1ULL << 63) |
| #define ICH_LR_PHYS_ID_SHIFT 32 |
| #define ICH_LR_PHYS_ID_MASK (0x3ffULL << ICH_LR_PHYS_ID_SHIFT) |
| #define ICH_LR_PRIORITY_SHIFT 48 |
| #define ICH_LR_PRIORITY_MASK (0xffULL << ICH_LR_PRIORITY_SHIFT) |
| |
| /* ICH_HCR_EL2 bit definitions */ |
| #define ICH_HCR_EN (1 << 0) |
| #define ICH_HCR_UIE (1 << 1) |
| #define ICH_HCR_NPIE (1 << 3) |
| #define ICH_HCR_TC (1 << 10) |
| #define ICH_HCR_TALL0 (1 << 11) |
| #define ICH_HCR_TALL1 (1 << 12) |
| #define ICH_HCR_TDIR (1 << 14) |
| #define ICH_HCR_EOIcount_SHIFT 27 |
| #define ICH_HCR_EOIcount_MASK (0x1f << ICH_HCR_EOIcount_SHIFT) |
| |
| /* ICH_VMCR_EL2 bit definitions */ |
| #define ICH_VMCR_ACK_CTL_SHIFT 2 |
| #define ICH_VMCR_ACK_CTL_MASK (1 << ICH_VMCR_ACK_CTL_SHIFT) |
| #define ICH_VMCR_FIQ_EN_SHIFT 3 |
| #define ICH_VMCR_FIQ_EN_MASK (1 << ICH_VMCR_FIQ_EN_SHIFT) |
| #define ICH_VMCR_CBPR_SHIFT 4 |
| #define ICH_VMCR_CBPR_MASK (1 << ICH_VMCR_CBPR_SHIFT) |
| #define ICH_VMCR_EOIM_SHIFT 9 |
| #define ICH_VMCR_EOIM_MASK (1 << ICH_VMCR_EOIM_SHIFT) |
| #define ICH_VMCR_BPR1_SHIFT 18 |
| #define ICH_VMCR_BPR1_MASK (7 << ICH_VMCR_BPR1_SHIFT) |
| #define ICH_VMCR_BPR0_SHIFT 21 |
| #define ICH_VMCR_BPR0_MASK (7 << ICH_VMCR_BPR0_SHIFT) |
| #define ICH_VMCR_PMR_SHIFT 24 |
| #define ICH_VMCR_PMR_MASK (0xffUL << ICH_VMCR_PMR_SHIFT) |
| #define ICH_VMCR_ENG0_SHIFT 0 |
| #define ICH_VMCR_ENG0_MASK (1 << ICH_VMCR_ENG0_SHIFT) |
| #define ICH_VMCR_ENG1_SHIFT 1 |
| #define ICH_VMCR_ENG1_MASK (1 << ICH_VMCR_ENG1_SHIFT) |
| |
| /* ICH_VTR_EL2 bit definitions */ |
| #define ICH_VTR_PRI_BITS_SHIFT 29 |
| #define ICH_VTR_PRI_BITS_MASK (7 << ICH_VTR_PRI_BITS_SHIFT) |
| #define ICH_VTR_ID_BITS_SHIFT 23 |
| #define ICH_VTR_ID_BITS_MASK (7 << ICH_VTR_ID_BITS_SHIFT) |
| #define ICH_VTR_SEIS_SHIFT 22 |
| #define ICH_VTR_SEIS_MASK (1 << ICH_VTR_SEIS_SHIFT) |
| #define ICH_VTR_A3V_SHIFT 21 |
| #define ICH_VTR_A3V_MASK (1 << ICH_VTR_A3V_SHIFT) |
| #define ICH_VTR_TDS_SHIFT 19 |
| #define ICH_VTR_TDS_MASK (1 << ICH_VTR_TDS_SHIFT) |
| |
| /* |
| * Permission Indirection Extension (PIE) permission encodings. |
| * Encodings with the _O suffix, have overlays applied (Permission Overlay Extension). |
| */ |
| #define PIE_NONE_O 0x0 |
| #define PIE_R_O 0x1 |
| #define PIE_X_O 0x2 |
| #define PIE_RX_O 0x3 |
| #define PIE_RW_O 0x5 |
| #define PIE_RWnX_O 0x6 |
| #define PIE_RWX_O 0x7 |
| #define PIE_R 0x8 |
| #define PIE_GCS 0x9 |
| #define PIE_RX 0xa |
| #define PIE_RW 0xc |
| #define PIE_RWX 0xe |
| |
| #define PIRx_ELx_PERM(idx, perm) ((perm) << ((idx) * 4)) |
| |
| #define ARM64_FEATURE_FIELD_BITS 4 |
| |
| /* Defined for compatibility only, do not add new users. */ |
| #define ARM64_FEATURE_MASK(x) (x##_MASK) |
| |
| #ifdef __ASSEMBLY__ |
| |
| .macro mrs_s, rt, sreg |
| __emit_inst(0xd5200000|(\sreg)|(.L__gpr_num_\rt)) |
| .endm |
| |
| .macro msr_s, sreg, rt |
| __emit_inst(0xd5000000|(\sreg)|(.L__gpr_num_\rt)) |
| .endm |
| |
| #else |
| |
| #include <linux/bitfield.h> |
| #include <linux/build_bug.h> |
| #include <linux/types.h> |
| #include <asm/alternative.h> |
| |
| #define DEFINE_MRS_S \ |
| __DEFINE_ASM_GPR_NUMS \ |
| " .macro mrs_s, rt, sreg\n" \ |
| __emit_inst(0xd5200000|(\\sreg)|(.L__gpr_num_\\rt)) \ |
| " .endm\n" |
| |
| #define DEFINE_MSR_S \ |
| __DEFINE_ASM_GPR_NUMS \ |
| " .macro msr_s, sreg, rt\n" \ |
| __emit_inst(0xd5000000|(\\sreg)|(.L__gpr_num_\\rt)) \ |
| " .endm\n" |
| |
| #define UNDEFINE_MRS_S \ |
| " .purgem mrs_s\n" |
| |
| #define UNDEFINE_MSR_S \ |
| " .purgem msr_s\n" |
| |
| #define __mrs_s(v, r) \ |
| DEFINE_MRS_S \ |
| " mrs_s " v ", " __stringify(r) "\n" \ |
| UNDEFINE_MRS_S |
| |
| #define __msr_s(r, v) \ |
| DEFINE_MSR_S \ |
| " msr_s " __stringify(r) ", " v "\n" \ |
| UNDEFINE_MSR_S |
| |
| /* |
| * Unlike read_cpuid, calls to read_sysreg are never expected to be |
| * optimized away or replaced with synthetic values. |
| */ |
| #define read_sysreg(r) ({ \ |
| u64 __val; \ |
| asm volatile("mrs %0, " __stringify(r) : "=r" (__val)); \ |
| __val; \ |
| }) |
| |
| /* |
| * The "Z" constraint normally means a zero immediate, but when combined with |
| * the "%x0" template means XZR. |
| */ |
| #define write_sysreg(v, r) do { \ |
| u64 __val = (u64)(v); \ |
| asm volatile("msr " __stringify(r) ", %x0" \ |
| : : "rZ" (__val)); \ |
| } while (0) |
| |
| /* |
| * For registers without architectural names, or simply unsupported by |
| * GAS. |
| */ |
| #define read_sysreg_s(r) ({ \ |
| u64 __val; \ |
| asm volatile(__mrs_s("%0", r) : "=r" (__val)); \ |
| __val; \ |
| }) |
| |
| #define write_sysreg_s(v, r) do { \ |
| u64 __val = (u64)(v); \ |
| asm volatile(__msr_s(r, "%x0") : : "rZ" (__val)); \ |
| } while (0) |
| |
| /* |
| * Modify bits in a sysreg. Bits in the clear mask are zeroed, then bits in the |
| * set mask are set. Other bits are left as-is. |
| */ |
| #define sysreg_clear_set(sysreg, clear, set) do { \ |
| u64 __scs_val = read_sysreg(sysreg); \ |
| u64 __scs_new = (__scs_val & ~(u64)(clear)) | (set); \ |
| if (__scs_new != __scs_val) \ |
| write_sysreg(__scs_new, sysreg); \ |
| } while (0) |
| |
| #define sysreg_clear_set_s(sysreg, clear, set) do { \ |
| u64 __scs_val = read_sysreg_s(sysreg); \ |
| u64 __scs_new = (__scs_val & ~(u64)(clear)) | (set); \ |
| if (__scs_new != __scs_val) \ |
| write_sysreg_s(__scs_new, sysreg); \ |
| } while (0) |
| |
| #define read_sysreg_par() ({ \ |
| u64 par; \ |
| asm(ALTERNATIVE("nop", "dmb sy", ARM64_WORKAROUND_1508412)); \ |
| par = read_sysreg(par_el1); \ |
| asm(ALTERNATIVE("nop", "dmb sy", ARM64_WORKAROUND_1508412)); \ |
| par; \ |
| }) |
| |
| #define SYS_FIELD_GET(reg, field, val) \ |
| FIELD_GET(reg##_##field##_MASK, val) |
| |
| #define SYS_FIELD_PREP(reg, field, val) \ |
| FIELD_PREP(reg##_##field##_MASK, val) |
| |
| #define SYS_FIELD_PREP_ENUM(reg, field, val) \ |
| FIELD_PREP(reg##_##field##_MASK, reg##_##field##_##val) |
| |
| #endif |
| |
| #endif /* __ASM_SYSREG_H */ |
