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linux-headers-6.8.0-83-generic
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csr.h
/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (C) 2015 Regents of the University of California */ #ifndef _ASM_RISCV_CSR_H #define _ASM_RISCV_CSR_H #include <asm/asm.h> #include <linux/bits.h> /* Status register flags */ #define SR_SIE _AC(0x00000002, UL) /* Supervisor Interrupt Enable */ #define SR_MIE _AC(0x00000008, UL) /* Machine Interrupt Enable */ #define SR_SPIE _AC(0x00000020, UL) /* Previous Supervisor IE */ #define SR_MPIE _AC(0x00000080, UL) /* Previous Machine IE */ #define SR_SPP _AC(0x00000100, UL) /* Previously Supervisor */ #define SR_MPP _AC(0x00001800, UL) /* Previously Machine */ #define SR_SUM _AC(0x00040000, UL) /* Supervisor User Memory Access */ #define SR_FS _AC(0x00006000, UL) /* Floating-point Status */ #define SR_FS_OFF _AC(0x00000000, UL) #define SR_FS_INITIAL _AC(0x00002000, UL) #define SR_FS_CLEAN _AC(0x00004000, UL) #define SR_FS_DIRTY _AC(0x00006000, UL) #define SR_VS _AC(0x00000600, UL) /* Vector Status */ #define SR_VS_OFF _AC(0x00000000, UL) #define SR_VS_INITIAL _AC(0x00000200, UL) #define SR_VS_CLEAN _AC(0x00000400, UL) #define SR_VS_DIRTY _AC(0x00000600, UL) #define SR_XS _AC(0x00018000, UL) /* Extension Status */ #define SR_XS_OFF _AC(0x00000000, UL) #define SR_XS_INITIAL _AC(0x00008000, UL) #define SR_XS_CLEAN _AC(0x00010000, UL) #define SR_XS_DIRTY _AC(0x00018000, UL) #define SR_FS_VS (SR_FS | SR_VS) /* Vector and Floating-Point Unit */ #ifndef CONFIG_64BIT #define SR_SD _AC(0x80000000, UL) /* FS/VS/XS dirty */ #else #define SR_SD _AC(0x8000000000000000, UL) /* FS/VS/XS dirty */ #endif #ifdef CONFIG_64BIT #define SR_UXL _AC(0x300000000, UL) /* XLEN mask for U-mode */ #define SR_UXL_32 _AC(0x100000000, UL) /* XLEN = 32 for U-mode */ #define SR_UXL_64 _AC(0x200000000, UL) /* XLEN = 64 for U-mode */ #endif /* SATP flags */ #ifndef CONFIG_64BIT #define SATP_PPN _AC(0x003FFFFF, UL) #define SATP_MODE_32 _AC(0x80000000, UL) #define SATP_MODE_SHIFT 31 #define SATP_ASID_BITS 9 #define SATP_ASID_SHIFT 22 #define SATP_ASID_MASK _AC(0x1FF, UL) #else #define SATP_PPN _AC(0x00000FFFFFFFFFFF, UL) #define SATP_MODE_39 _AC(0x8000000000000000, UL) #define SATP_MODE_48 _AC(0x9000000000000000, UL) #define SATP_MODE_57 _AC(0xa000000000000000, UL) #define SATP_MODE_SHIFT 60 #define SATP_ASID_BITS 16 #define SATP_ASID_SHIFT 44 #define SATP_ASID_MASK _AC(0xFFFF, UL) #endif /* Exception cause high bit - is an interrupt if set */ #define CAUSE_IRQ_FLAG (_AC(1, UL) << (__riscv_xlen - 1)) /* Interrupt causes (minus the high bit) */ #define IRQ_S_SOFT 1 #define IRQ_VS_SOFT 2 #define IRQ_M_SOFT 3 #define IRQ_S_TIMER 5 #define IRQ_VS_TIMER 6 #define IRQ_M_TIMER 7 #define IRQ_S_EXT 9 #define IRQ_VS_EXT 10 #define IRQ_M_EXT 11 #define IRQ_S_GEXT 12 #define IRQ_PMU_OVF 13 #define IRQ_LOCAL_MAX (IRQ_PMU_OVF + 1) #define IRQ_LOCAL_MASK GENMASK((IRQ_LOCAL_MAX - 1), 0) /* Exception causes */ #define EXC_INST_MISALIGNED 0 #define EXC_INST_ACCESS 1 #define EXC_INST_ILLEGAL 2 #define EXC_BREAKPOINT 3 #define EXC_LOAD_MISALIGNED 4 #define EXC_LOAD_ACCESS 5 #define EXC_STORE_MISALIGNED 6 #define EXC_STORE_ACCESS 7 #define EXC_SYSCALL 8 #define EXC_HYPERVISOR_SYSCALL 9 #define EXC_SUPERVISOR_SYSCALL 10 #define EXC_INST_PAGE_FAULT 12 #define EXC_LOAD_PAGE_FAULT 13 #define EXC_STORE_PAGE_FAULT 15 #define EXC_INST_GUEST_PAGE_FAULT 20 #define EXC_LOAD_GUEST_PAGE_FAULT 21 #define EXC_VIRTUAL_INST_FAULT 22 #define EXC_STORE_GUEST_PAGE_FAULT 23 /* PMP configuration */ #define PMP_R 0x01 #define PMP_W 0x02 #define PMP_X 0x04 #define PMP_A 0x18 #define PMP_A_TOR 0x08 #define PMP_A_NA4 0x10 #define PMP_A_NAPOT 0x18 #define PMP_L 0x80 /* HSTATUS flags */ #ifdef CONFIG_64BIT #define HSTATUS_VSXL _AC(0x300000000, UL) #define HSTATUS_VSXL_SHIFT 32 #endif #define HSTATUS_VTSR _AC(0x00400000, UL) #define HSTATUS_VTW _AC(0x00200000, UL) #define HSTATUS_VTVM _AC(0x00100000, UL) #define HSTATUS_VGEIN _AC(0x0003f000, UL) #define HSTATUS_VGEIN_SHIFT 12 #define HSTATUS_HU _AC(0x00000200, UL) #define HSTATUS_SPVP _AC(0x00000100, UL) #define HSTATUS_SPV _AC(0x00000080, UL) #define HSTATUS_GVA _AC(0x00000040, UL) #define HSTATUS_VSBE _AC(0x00000020, UL) /* HGATP flags */ #define HGATP_MODE_OFF _AC(0, UL) #define HGATP_MODE_SV32X4 _AC(1, UL) #define HGATP_MODE_SV39X4 _AC(8, UL) #define HGATP_MODE_SV48X4 _AC(9, UL) #define HGATP_MODE_SV57X4 _AC(10, UL) #define HGATP32_MODE_SHIFT 31 #define HGATP32_VMID_SHIFT 22 #define HGATP32_VMID GENMASK(28, 22) #define HGATP32_PPN GENMASK(21, 0) #define HGATP64_MODE_SHIFT 60 #define HGATP64_VMID_SHIFT 44 #define HGATP64_VMID GENMASK(57, 44) #define HGATP64_PPN GENMASK(43, 0) #define HGATP_PAGE_SHIFT 12 #ifdef CONFIG_64BIT #define HGATP_PPN HGATP64_PPN #define HGATP_VMID_SHIFT HGATP64_VMID_SHIFT #define HGATP_VMID HGATP64_VMID #define HGATP_MODE_SHIFT HGATP64_MODE_SHIFT #else #define HGATP_PPN HGATP32_PPN #define HGATP_VMID_SHIFT HGATP32_VMID_SHIFT #define HGATP_VMID HGATP32_VMID #define HGATP_MODE_SHIFT HGATP32_MODE_SHIFT #endif /* VSIP & HVIP relation */ #define VSIP_TO_HVIP_SHIFT (IRQ_VS_SOFT - IRQ_S_SOFT) #define VSIP_VALID_MASK ((_AC(1, UL) << IRQ_S_SOFT) | \ (_AC(1, UL) << IRQ_S_TIMER) | \ (_AC(1, UL) << IRQ_S_EXT)) /* AIA CSR bits */ #define TOPI_IID_SHIFT 16 #define TOPI_IID_MASK GENMASK(11, 0) #define TOPI_IPRIO_MASK GENMASK(7, 0) #define TOPI_IPRIO_BITS 8 #define TOPEI_ID_SHIFT 16 #define TOPEI_ID_MASK GENMASK(10, 0) #define TOPEI_PRIO_MASK GENMASK(10, 0) #define ISELECT_IPRIO0 0x30 #define ISELECT_IPRIO15 0x3f #define ISELECT_MASK GENMASK(8, 0) #define HVICTL_VTI BIT(30) #define HVICTL_IID GENMASK(27, 16) #define HVICTL_IID_SHIFT 16 #define HVICTL_DPR BIT(9) #define HVICTL_IPRIOM BIT(8) #define HVICTL_IPRIO GENMASK(7, 0) /* xENVCFG flags */ #define ENVCFG_STCE (_AC(1, ULL) << 63) #define ENVCFG_PBMTE (_AC(1, ULL) << 62) #define ENVCFG_CBZE (_AC(1, UL) << 7) #define ENVCFG_CBCFE (_AC(1, UL) << 6) #define ENVCFG_CBIE_SHIFT 4 #define ENVCFG_CBIE (_AC(0x3, UL) << ENVCFG_CBIE_SHIFT) #define ENVCFG_CBIE_ILL _AC(0x0, UL) #define ENVCFG_CBIE_FLUSH _AC(0x1, UL) #define ENVCFG_CBIE_INV _AC(0x3, UL) #define ENVCFG_FIOM _AC(0x1, UL) /* Smstateen bits */ #define SMSTATEEN0_AIA_IMSIC_SHIFT 58 #define SMSTATEEN0_AIA_IMSIC (_ULL(1) << SMSTATEEN0_AIA_IMSIC_SHIFT) #define SMSTATEEN0_AIA_SHIFT 59 #define SMSTATEEN0_AIA (_ULL(1) << SMSTATEEN0_AIA_SHIFT) #define SMSTATEEN0_AIA_ISEL_SHIFT 60 #define SMSTATEEN0_AIA_ISEL (_ULL(1) << SMSTATEEN0_AIA_ISEL_SHIFT) #define SMSTATEEN0_HSENVCFG_SHIFT 62 #define SMSTATEEN0_HSENVCFG (_ULL(1) << SMSTATEEN0_HSENVCFG_SHIFT) #define SMSTATEEN0_SSTATEEN0_SHIFT 63 #define SMSTATEEN0_SSTATEEN0 (_ULL(1) << SMSTATEEN0_SSTATEEN0_SHIFT) /* symbolic CSR names: */ #define CSR_CYCLE 0xc00 #define CSR_TIME 0xc01 #define CSR_INSTRET 0xc02 #define CSR_HPMCOUNTER3 0xc03 #define CSR_HPMCOUNTER4 0xc04 #define CSR_HPMCOUNTER5 0xc05 #define CSR_HPMCOUNTER6 0xc06 #define CSR_HPMCOUNTER7 0xc07 #define CSR_HPMCOUNTER8 0xc08 #define CSR_HPMCOUNTER9 0xc09 #define CSR_HPMCOUNTER10 0xc0a #define CSR_HPMCOUNTER11 0xc0b #define CSR_HPMCOUNTER12 0xc0c #define CSR_HPMCOUNTER13 0xc0d #define CSR_HPMCOUNTER14 0xc0e #define CSR_HPMCOUNTER15 0xc0f #define CSR_HPMCOUNTER16 0xc10 #define CSR_HPMCOUNTER17 0xc11 #define CSR_HPMCOUNTER18 0xc12 #define CSR_HPMCOUNTER19 0xc13 #define CSR_HPMCOUNTER20 0xc14 #define CSR_HPMCOUNTER21 0xc15 #define CSR_HPMCOUNTER22 0xc16 #define CSR_HPMCOUNTER23 0xc17 #define CSR_HPMCOUNTER24 0xc18 #define CSR_HPMCOUNTER25 0xc19 #define CSR_HPMCOUNTER26 0xc1a #define CSR_HPMCOUNTER27 0xc1b #define CSR_HPMCOUNTER28 0xc1c #define CSR_HPMCOUNTER29 0xc1d #define CSR_HPMCOUNTER30 0xc1e #define CSR_HPMCOUNTER31 0xc1f #define CSR_CYCLEH 0xc80 #define CSR_TIMEH 0xc81 #define CSR_INSTRETH 0xc82 #define CSR_HPMCOUNTER3H 0xc83 #define CSR_HPMCOUNTER4H 0xc84 #define CSR_HPMCOUNTER5H 0xc85 #define CSR_HPMCOUNTER6H 0xc86 #define CSR_HPMCOUNTER7H 0xc87 #define CSR_HPMCOUNTER8H 0xc88 #define CSR_HPMCOUNTER9H 0xc89 #define CSR_HPMCOUNTER10H 0xc8a #define CSR_HPMCOUNTER11H 0xc8b #define CSR_HPMCOUNTER12H 0xc8c #define CSR_HPMCOUNTER13H 0xc8d #define CSR_HPMCOUNTER14H 0xc8e #define CSR_HPMCOUNTER15H 0xc8f #define CSR_HPMCOUNTER16H 0xc90 #define CSR_HPMCOUNTER17H 0xc91 #define CSR_HPMCOUNTER18H 0xc92 #define CSR_HPMCOUNTER19H 0xc93 #define CSR_HPMCOUNTER20H 0xc94 #define CSR_HPMCOUNTER21H 0xc95 #define CSR_HPMCOUNTER22H 0xc96 #define CSR_HPMCOUNTER23H 0xc97 #define CSR_HPMCOUNTER24H 0xc98 #define CSR_HPMCOUNTER25H 0xc99 #define CSR_HPMCOUNTER26H 0xc9a #define CSR_HPMCOUNTER27H 0xc9b #define CSR_HPMCOUNTER28H 0xc9c #define CSR_HPMCOUNTER29H 0xc9d #define CSR_HPMCOUNTER30H 0xc9e #define CSR_HPMCOUNTER31H 0xc9f #define CSR_SSCOUNTOVF 0xda0 #define CSR_SSTATUS 0x100 #define CSR_SIE 0x104 #define CSR_STVEC 0x105 #define CSR_SCOUNTEREN 0x106 #define CSR_SENVCFG 0x10a #define CSR_SSTATEEN0 0x10c #define CSR_SSCRATCH 0x140 #define CSR_SEPC 0x141 #define CSR_SCAUSE 0x142 #define CSR_STVAL 0x143 #define CSR_SIP 0x144 #define CSR_SATP 0x180 #define CSR_STIMECMP 0x14D #define CSR_STIMECMPH 0x15D /* Supervisor-Level Window to Indirectly Accessed Registers (AIA) */ #define CSR_SISELECT 0x150 #define CSR_SIREG 0x151 /* Supervisor-Level Interrupts (AIA) */ #define CSR_STOPEI 0x15c #define CSR_STOPI 0xdb0 /* Supervisor-Level High-Half CSRs (AIA) */ #define CSR_SIEH 0x114 #define CSR_SIPH 0x154 #define CSR_VSSTATUS 0x200 #define CSR_VSIE 0x204 #define CSR_VSTVEC 0x205 #define CSR_VSSCRATCH 0x240 #define CSR_VSEPC 0x241 #define CSR_VSCAUSE 0x242 #define CSR_VSTVAL 0x243 #define CSR_VSIP 0x244 #define CSR_VSATP 0x280 #define CSR_VSTIMECMP 0x24D #define CSR_VSTIMECMPH 0x25D #define CSR_HSTATUS 0x600 #define CSR_HEDELEG 0x602 #define CSR_HIDELEG 0x603 #define CSR_HIE 0x604 #define CSR_HTIMEDELTA 0x605 #define CSR_HCOUNTEREN 0x606 #define CSR_HGEIE 0x607 #define CSR_HENVCFG 0x60a #define CSR_HTIMEDELTAH 0x615 #define CSR_HENVCFGH 0x61a #define CSR_HTVAL 0x643 #define CSR_HIP 0x644 #define CSR_HVIP 0x645 #define CSR_HTINST 0x64a #define CSR_HGATP 0x680 #define CSR_HGEIP 0xe12 /* Virtual Interrupts and Interrupt Priorities (H-extension with AIA) */ #define CSR_HVIEN 0x608 #define CSR_HVICTL 0x609 #define CSR_HVIPRIO1 0x646 #define CSR_HVIPRIO2 0x647 /* VS-Level Window to Indirectly Accessed Registers (H-extension with AIA) */ #define CSR_VSISELECT 0x250 #define CSR_VSIREG 0x251 /* VS-Level Interrupts (H-extension with AIA) */ #define CSR_VSTOPEI 0x25c #define CSR_VSTOPI 0xeb0 /* Hypervisor and VS-Level High-Half CSRs (H-extension with AIA) */ #define CSR_HIDELEGH 0x613 #define CSR_HVIENH 0x618 #define CSR_HVIPH 0x655 #define CSR_HVIPRIO1H 0x656 #define CSR_HVIPRIO2H 0x657 #define CSR_VSIEH 0x214 #define CSR_VSIPH 0x254 /* Hypervisor stateen CSRs */ #define CSR_HSTATEEN0 0x60c #define CSR_HSTATEEN0H 0x61c #define CSR_MSTATUS 0x300 #define CSR_MISA 0x301 #define CSR_MIDELEG 0x303 #define CSR_MIE 0x304 #define CSR_MTVEC 0x305 #define CSR_MENVCFG 0x30a #define CSR_MENVCFGH 0x31a #define CSR_MSCRATCH 0x340 #define CSR_MEPC 0x341 #define CSR_MCAUSE 0x342 #define CSR_MTVAL 0x343 #define CSR_MIP 0x344 #define CSR_PMPCFG0 0x3a0 #define CSR_PMPADDR0 0x3b0 #define CSR_MVENDORID 0xf11 #define CSR_MARCHID 0xf12 #define CSR_MIMPID 0xf13 #define CSR_MHARTID 0xf14 /* Machine-Level Window to Indirectly Accessed Registers (AIA) */ #define CSR_MISELECT 0x350 #define CSR_MIREG 0x351 /* Machine-Level Interrupts (AIA) */ #define CSR_MTOPEI 0x35c #define CSR_MTOPI 0xfb0 /* Virtual Interrupts for Supervisor Level (AIA) */ #define CSR_MVIEN 0x308 #define CSR_MVIP 0x309 /* Machine-Level High-Half CSRs (AIA) */ #define CSR_MIDELEGH 0x313 #define CSR_MIEH 0x314 #define CSR_MVIENH 0x318 #define CSR_MVIPH 0x319 #define CSR_MIPH 0x354 #define CSR_VSTART 0x8 #define CSR_VCSR 0xf #define CSR_VL 0xc20 #define CSR_VTYPE 0xc21 #define CSR_VLENB 0xc22 /* Scalar Crypto Extension - Entropy */ #define CSR_SEED 0x015 #define SEED_OPST_MASK _AC(0xC0000000, UL) #define SEED_OPST_BIST _AC(0x00000000, UL) #define SEED_OPST_WAIT _AC(0x40000000, UL) #define SEED_OPST_ES16 _AC(0x80000000, UL) #define SEED_OPST_DEAD _AC(0xC0000000, UL) #define SEED_ENTROPY_MASK _AC(0xFFFF, UL) #ifdef CONFIG_RISCV_M_MODE # define CSR_STATUS CSR_MSTATUS # define CSR_IE CSR_MIE # define CSR_TVEC CSR_MTVEC # define CSR_ENVCFG CSR_MENVCFG # define CSR_SCRATCH CSR_MSCRATCH # define CSR_EPC CSR_MEPC # define CSR_CAUSE CSR_MCAUSE # define CSR_TVAL CSR_MTVAL # define CSR_IP CSR_MIP # define CSR_IEH CSR_MIEH # define CSR_ISELECT CSR_MISELECT # define CSR_IREG CSR_MIREG # define CSR_IPH CSR_MIPH # define CSR_TOPEI CSR_MTOPEI # define CSR_TOPI CSR_MTOPI # define SR_IE SR_MIE # define SR_PIE SR_MPIE # define SR_PP SR_MPP # define RV_IRQ_SOFT IRQ_M_SOFT # define RV_IRQ_TIMER IRQ_M_TIMER # define RV_IRQ_EXT IRQ_M_EXT #else /* CONFIG_RISCV_M_MODE */ # define CSR_STATUS CSR_SSTATUS # define CSR_IE CSR_SIE # define CSR_TVEC CSR_STVEC # define CSR_ENVCFG CSR_SENVCFG # define CSR_SCRATCH CSR_SSCRATCH # define CSR_EPC CSR_SEPC # define CSR_CAUSE CSR_SCAUSE # define CSR_TVAL CSR_STVAL # define CSR_IP CSR_SIP # define CSR_IEH CSR_SIEH # define CSR_ISELECT CSR_SISELECT # define CSR_IREG CSR_SIREG # define CSR_IPH CSR_SIPH # define CSR_TOPEI CSR_STOPEI # define CSR_TOPI CSR_STOPI # define SR_IE SR_SIE # define SR_PIE SR_SPIE # define SR_PP SR_SPP # define RV_IRQ_SOFT IRQ_S_SOFT # define RV_IRQ_TIMER IRQ_S_TIMER # define RV_IRQ_EXT IRQ_S_EXT # define RV_IRQ_PMU IRQ_PMU_OVF # define SIP_LCOFIP (_AC(0x1, UL) << IRQ_PMU_OVF) #endif /* !CONFIG_RISCV_M_MODE */ /* IE/IP (Supervisor/Machine Interrupt Enable/Pending) flags */ #define IE_SIE (_AC(0x1, UL) << RV_IRQ_SOFT) #define IE_TIE (_AC(0x1, UL) << RV_IRQ_TIMER) #define IE_EIE (_AC(0x1, UL) << RV_IRQ_EXT) #ifndef __ASSEMBLY__ #define csr_swap(csr, val) \ ({ \ unsigned long __v = (unsigned long)(val); \ __asm__ __volatile__ ("csrrw %0, " __ASM_STR(csr) ", %1"\ : "=r" (__v) : "rK" (__v) \ : "memory"); \ __v; \ }) #define csr_read(csr) \ ({ \ register unsigned long __v; \ __asm__ __volatile__ ("csrr %0, " __ASM_STR(csr) \ : "=r" (__v) : \ : "memory"); \ __v; \ }) #define csr_write(csr, val) \ ({ \ unsigned long __v = (unsigned long)(val); \ __asm__ __volatile__ ("csrw " __ASM_STR(csr) ", %0" \ : : "rK" (__v) \ : "memory"); \ }) #define csr_read_set(csr, val) \ ({ \ unsigned long __v = (unsigned long)(val); \ __asm__ __volatile__ ("csrrs %0, " __ASM_STR(csr) ", %1"\ : "=r" (__v) : "rK" (__v) \ : "memory"); \ __v; \ }) #define csr_set(csr, val) \ ({ \ unsigned long __v = (unsigned long)(val); \ __asm__ __volatile__ ("csrs " __ASM_STR(csr) ", %0" \ : : "rK" (__v) \ : "memory"); \ }) #define csr_read_clear(csr, val) \ ({ \ unsigned long __v = (unsigned long)(val); \ __asm__ __volatile__ ("csrrc %0, " __ASM_STR(csr) ", %1"\ : "=r" (__v) : "rK" (__v) \ : "memory"); \ __v; \ }) #define csr_clear(csr, val) \ ({ \ unsigned long __v = (unsigned long)(val); \ __asm__ __volatile__ ("csrc " __ASM_STR(csr) ", %0" \ : : "rK" (__v) \ : "memory"); \ }) #endif /* __ASSEMBLY__ */ #endif /* _ASM_RISCV_CSR_H */
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