/* SPDX-License-Identifier: BSD-2-Clause */ /* * Copyright (c) 2015, Linaro Limited */ #ifndef ARM64_H #define ARM64_H #include #include #include #include #define SCTLR_M BIT32(0) #define SCTLR_A BIT32(1) #define SCTLR_C BIT32(2) #define SCTLR_SA BIT32(3) #define SCTLR_I BIT32(12) #define SCTLR_WXN BIT32(19) #define SCTLR_SPAN BIT32(23) #define TTBR_ASID_MASK U(0xff) #define TTBR_ASID_SHIFT U(48) #define CLIDR_LOUIS_SHIFT U(21) #define CLIDR_LOC_SHIFT U(24) #define CLIDR_FIELD_WIDTH U(3) #define CSSELR_LEVEL_SHIFT U(1) #define DAIFBIT_FIQ BIT32(0) #define DAIFBIT_IRQ BIT32(1) #define DAIFBIT_ABT BIT32(2) #define DAIFBIT_DBG BIT32(3) #define DAIFBIT_ALL (DAIFBIT_FIQ | DAIFBIT_IRQ | \ DAIFBIT_ABT | DAIFBIT_DBG) #define DAIF_F_SHIFT U(6) #define DAIF_F BIT32(6) #define DAIF_I BIT32(7) #define DAIF_A BIT32(8) #define DAIF_D BIT32(9) #define DAIF_AIF (DAIF_A | DAIF_I | DAIF_F) #define SPSR_MODE_RW_SHIFT U(4) #define SPSR_MODE_RW_MASK U(0x1) #define SPSR_MODE_RW_64 U(0x0) #define SPSR_MODE_RW_32 U(0x1) #define SPSR_64_MODE_SP_SHIFT U(0) #define SPSR_64_MODE_SP_MASK U(0x1) #define SPSR_64_MODE_SP_EL0 U(0x0) #define SPSR_64_MODE_SP_ELX U(0x1) #define SPSR_64_MODE_EL_SHIFT U(2) #define SPSR_64_MODE_EL_MASK U(0x3) #define SPSR_64_MODE_EL1 U(0x1) #define SPSR_64_MODE_EL0 U(0x0) #define SPSR_64_DAIF_SHIFT U(6) #define SPSR_64_DAIF_MASK U(0xf) #define SPSR_32_AIF_SHIFT U(6) #define SPSR_32_AIF_MASK U(0x7) #define SPSR_32_E_SHIFT U(9) #define SPSR_32_E_MASK U(0x1) #define SPSR_32_E_LITTLE U(0x0) #define SPSR_32_E_BIG U(0x1) #define SPSR_32_T_SHIFT U(5) #define SPSR_32_T_MASK U(0x1) #define SPSR_32_T_ARM U(0x0) #define SPSR_32_T_THUMB U(0x1) #define SPSR_32_MODE_SHIFT U(0) #define SPSR_32_MODE_MASK U(0xf) #define SPSR_32_MODE_USR U(0x0) #define SPSR_64(el, sp, daif) \ (SPSR_MODE_RW_64 << SPSR_MODE_RW_SHIFT | \ ((el) & SPSR_64_MODE_EL_MASK) << SPSR_64_MODE_EL_SHIFT | \ ((sp) & SPSR_64_MODE_SP_MASK) << SPSR_64_MODE_SP_SHIFT | \ ((daif) & SPSR_64_DAIF_MASK) << SPSR_64_DAIF_SHIFT) #define SPSR_32(mode, isa, aif) \ (SPSR_MODE_RW_32 << SPSR_MODE_RW_SHIFT | \ SPSR_32_E_LITTLE << SPSR_32_E_SHIFT | \ ((mode) & SPSR_32_MODE_MASK) << SPSR_32_MODE_SHIFT | \ ((isa) & SPSR_32_T_MASK) << SPSR_32_T_SHIFT | \ ((aif) & SPSR_32_AIF_MASK) << SPSR_32_AIF_SHIFT) #define TCR_T0SZ_SHIFT U(0) #define TCR_EPD0 BIT32(7) #define TCR_IRGN0_SHIFT U(8) #define TCR_ORGN0_SHIFT U(10) #define TCR_SH0_SHIFT U(12) #define TCR_T1SZ_SHIFT U(16) #define TCR_A1 BIT32(22) #define TCR_EPD1 BIT32(23) #define TCR_IRGN1_SHIFT U(24) #define TCR_ORGN1_SHIFT U(26) #define TCR_SH1_SHIFT U(28) #define TCR_EL1_IPS_SHIFT U(32) #define TCR_EL1_IPS_MASK UINT64_C(0x7) #define TCR_TG1_4KB SHIFT_U32(2, 30) #define TCR_RES1 BIT32(31) /* Normal memory, Inner/Outer Non-cacheable */ #define TCR_XRGNX_NC U(0x0) /* Normal memory, Inner/Outer Write-Back Write-Allocate Cacheable */ #define TCR_XRGNX_WB U(0x1) /* Normal memory, Inner/Outer Write-Through Cacheable */ #define TCR_XRGNX_WT U(0x2) /* Normal memory, Inner/Outer Write-Back no Write-Allocate Cacheable */ #define TCR_XRGNX_WBWA U(0x3) /* Non-shareable */ #define TCR_SHX_NSH U(0x0) /* Outer Shareable */ #define TCR_SHX_OSH U(0x2) /* Inner Shareable */ #define TCR_SHX_ISH U(0x3) #define ESR_EC_SHIFT U(26) #define ESR_EC_MASK U(0x3f) #define ESR_EC_UNKNOWN U(0x00) #define ESR_EC_WFI U(0x01) #define ESR_EC_AARCH32_CP15_32 U(0x03) #define ESR_EC_AARCH32_CP15_64 U(0x04) #define ESR_EC_AARCH32_CP14_MR U(0x05) #define ESR_EC_AARCH32_CP14_LS U(0x06) #define ESR_EC_FP_ASIMD U(0x07) #define ESR_EC_AARCH32_CP10_ID U(0x08) #define ESR_EC_AARCH32_CP14_64 U(0x0c) #define ESR_EC_ILLEGAL U(0x0e) #define ESR_EC_AARCH32_SVC U(0x11) #define ESR_EC_AARCH64_SVC U(0x15) #define ESR_EC_AARCH64_SYS U(0x18) #define ESR_EC_IABT_EL0 U(0x20) #define ESR_EC_IABT_EL1 U(0x21) #define ESR_EC_PC_ALIGN U(0x22) #define ESR_EC_DABT_EL0 U(0x24) #define ESR_EC_DABT_EL1 U(0x25) #define ESR_EC_SP_ALIGN U(0x26) #define ESR_EC_AARCH32_FP U(0x28) #define ESR_EC_AARCH64_FP U(0x2c) #define ESR_EC_SERROR U(0x2f) #define ESR_EC_BREAKPT_EL0 U(0x30) #define ESR_EC_BREAKPT_EL1 U(0x31) #define ESR_EC_SOFTSTP_EL0 U(0x32) #define ESR_EC_SOFTSTP_EL1 U(0x33) #define ESR_EC_WATCHPT_EL0 U(0x34) #define ESR_EC_WATCHPT_EL1 U(0x35) #define ESR_EC_AARCH32_BKPT U(0x38) #define ESR_EC_AARCH64_BRK U(0x3c) /* Combined defines for DFSC and IFSC */ #define ESR_FSC_MASK U(0x3f) #define ESR_FSC_SIZE_L0 U(0x00) #define ESR_FSC_SIZE_L1 U(0x01) #define ESR_FSC_SIZE_L2 U(0x02) #define ESR_FSC_SIZE_L3 U(0x03) #define ESR_FSC_TRANS_L0 U(0x04) #define ESR_FSC_TRANS_L1 U(0x05) #define ESR_FSC_TRANS_L2 U(0x06) #define ESR_FSC_TRANS_L3 U(0x07) #define ESR_FSC_ACCF_L1 U(0x09) #define ESR_FSC_ACCF_L2 U(0x0a) #define ESR_FSC_ACCF_L3 U(0x0b) #define ESR_FSC_PERMF_L1 U(0x0d) #define ESR_FSC_PERMF_L2 U(0x0e) #define ESR_FSC_PERMF_L3 U(0x0f) #define ESR_FSC_ALIGN U(0x21) /* WnR for DABT and RES0 for IABT */ #define ESR_ABT_WNR BIT32(6) #define CPACR_EL1_FPEN_SHIFT U(20) #define CPACR_EL1_FPEN_MASK U(0x3) #define CPACR_EL1_FPEN_NONE U(0x0) #define CPACR_EL1_FPEN_EL1 U(0x1) #define CPACR_EL1_FPEN_EL0EL1 U(0x3) #define CPACR_EL1_FPEN(x) ((x) >> CPACR_EL1_FPEN_SHIFT \ & CPACR_EL1_FPEN_MASK) #define PAR_F BIT32(0) #define PAR_PA_SHIFT U(12) #define PAR_PA_MASK (BIT64(36) - 1) #define TLBI_MVA_SHIFT U(12) #define TLBI_ASID_SHIFT U(48) #define TLBI_ASID_MASK U(0xff) #define ID_AA64PFR1_EL1_BT_MASK ULL(0xf) #define FEAT_BTI_IMPLEMENTED ULL(0x1) #ifndef __ASSEMBLER__ static inline __noprof void isb(void) { asm volatile ("isb"); } static inline __noprof void dsb(void) { asm volatile ("dsb sy"); } static inline __noprof void dsb_ish(void) { asm volatile ("dsb ish"); } static inline __noprof void dsb_ishst(void) { asm volatile ("dsb ishst"); } static inline __noprof void sev(void) { asm volatile ("sev"); } static inline __noprof void wfe(void) { asm volatile ("wfe"); } static inline __noprof void wfi(void) { asm volatile ("wfi"); } static inline __noprof void write_at_s1e1r(uint64_t va) { asm volatile ("at S1E1R, %0" : : "r" (va)); } static __always_inline __noprof uint64_t read_pc(void) { uint64_t val; asm volatile ("adr %0, ." : "=r" (val)); return val; } static __always_inline __noprof uint64_t read_fp(void) { uint64_t val; asm volatile ("mov %0, x29" : "=r" (val)); return val; } static inline __noprof uint64_t read_pmu_ccnt(void) { uint64_t val; asm volatile("mrs %0, PMCCNTR_EL0" : "=r"(val)); return val; } static inline __noprof void tlbi_vaae1is(uint64_t mva) { asm volatile ("tlbi vaae1is, %0" : : "r" (mva)); } static inline __noprof void tlbi_vale1is(uint64_t mva) { asm volatile ("tlbi vale1is, %0" : : "r" (mva)); } /* * Templates for register read/write functions based on mrs/msr */ #define DEFINE_REG_READ_FUNC_(reg, type, asmreg) \ static inline __noprof type read_##reg(void) \ { \ uint64_t val64 = 0; \ \ asm volatile("mrs %0, " #asmreg : "=r" (val64)); \ return val64; \ } #define DEFINE_REG_WRITE_FUNC_(reg, type, asmreg) \ static inline __noprof void write_##reg(type val) \ { \ uint64_t val64 = val; \ \ asm volatile("msr " #asmreg ", %0" : : "r" (val64)); \ } #define DEFINE_U32_REG_READ_FUNC(reg) \ DEFINE_REG_READ_FUNC_(reg, uint32_t, reg) #define DEFINE_U32_REG_WRITE_FUNC(reg) \ DEFINE_REG_WRITE_FUNC_(reg, uint32_t, reg) #define DEFINE_U32_REG_READWRITE_FUNCS(reg) \ DEFINE_U32_REG_READ_FUNC(reg) \ DEFINE_U32_REG_WRITE_FUNC(reg) #define DEFINE_U64_REG_READ_FUNC(reg) \ DEFINE_REG_READ_FUNC_(reg, uint64_t, reg) #define DEFINE_U64_REG_WRITE_FUNC(reg) \ DEFINE_REG_WRITE_FUNC_(reg, uint64_t, reg) #define DEFINE_U64_REG_READWRITE_FUNCS(reg) \ DEFINE_U64_REG_READ_FUNC(reg) \ DEFINE_U64_REG_WRITE_FUNC(reg) /* * Define register access functions */ DEFINE_U32_REG_READWRITE_FUNCS(cpacr_el1) DEFINE_U32_REG_READWRITE_FUNCS(daif) DEFINE_U32_REG_READWRITE_FUNCS(fpcr) DEFINE_U32_REG_READWRITE_FUNCS(fpsr) DEFINE_U32_REG_READ_FUNC(ctr_el0) #define read_ctr() read_ctr_el0() DEFINE_U32_REG_READ_FUNC(contextidr_el1) DEFINE_U32_REG_READ_FUNC(sctlr_el1) /* ARM Generic timer functions */ DEFINE_REG_READ_FUNC_(cntfrq, uint32_t, cntfrq_el0) DEFINE_REG_READ_FUNC_(cntvct, uint64_t, cntvct_el0) DEFINE_REG_READ_FUNC_(cntpct, uint64_t, cntpct_el0) DEFINE_REG_READ_FUNC_(cntkctl, uint32_t, cntkctl_el1) DEFINE_REG_WRITE_FUNC_(cntkctl, uint32_t, cntkctl_el1) DEFINE_REG_READ_FUNC_(cntps_ctl, uint32_t, cntps_ctl_el1) DEFINE_REG_WRITE_FUNC_(cntps_ctl, uint32_t, cntps_ctl_el1) DEFINE_REG_READ_FUNC_(cntps_tval, uint32_t, cntps_tval_el1) DEFINE_REG_WRITE_FUNC_(cntps_tval, uint32_t, cntps_tval_el1) DEFINE_REG_READ_FUNC_(pmccntr, uint64_t, pmccntr_el0) DEFINE_U64_REG_READWRITE_FUNCS(ttbr0_el1) DEFINE_U64_REG_READWRITE_FUNCS(ttbr1_el1) DEFINE_U64_REG_READWRITE_FUNCS(tcr_el1) DEFINE_U64_REG_READ_FUNC(esr_el1) DEFINE_U64_REG_READ_FUNC(far_el1) DEFINE_U64_REG_READ_FUNC(mpidr_el1) /* Alias for reading this register to avoid ifdefs in code */ #define read_mpidr() read_mpidr_el1() DEFINE_U64_REG_READ_FUNC(midr_el1) /* Alias for reading this register to avoid ifdefs in code */ #define read_midr() read_midr_el1() DEFINE_U64_REG_READ_FUNC(par_el1) DEFINE_U64_REG_WRITE_FUNC(mair_el1) DEFINE_U64_REG_READ_FUNC(id_aa64pfr1_el1) /* Register read/write functions for GICC registers by using system interface */ DEFINE_REG_READ_FUNC_(icc_ctlr, uint32_t, S3_0_C12_C12_4) DEFINE_REG_WRITE_FUNC_(icc_ctlr, uint32_t, S3_0_C12_C12_4) DEFINE_REG_WRITE_FUNC_(icc_pmr, uint32_t, S3_0_C4_C6_0) DEFINE_REG_READ_FUNC_(icc_iar0, uint32_t, S3_0_c12_c8_0) DEFINE_REG_READ_FUNC_(icc_iar1, uint32_t, S3_0_c12_c12_0) DEFINE_REG_WRITE_FUNC_(icc_eoir0, uint32_t, S3_0_c12_c8_1) DEFINE_REG_WRITE_FUNC_(icc_eoir1, uint32_t, S3_0_c12_c12_1) DEFINE_REG_WRITE_FUNC_(icc_igrpen0, uint32_t, S3_0_C12_C12_6) DEFINE_REG_WRITE_FUNC_(icc_igrpen1, uint32_t, S3_0_C12_C12_7) #endif /*__ASSEMBLER__*/ #endif /*ARM64_H*/