xous-riscv: remove package
It is unneeded now tat we're using upstream. Signed-off-by: Sean Cross <sean@xobs.io>
This commit is contained in:
parent
fd7bbc463d
commit
62733c0c3a
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@ -1,16 +0,0 @@
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[package]
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name = "xous-riscv"
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version = "0.5.4"
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repository = "https://github.com/rust-embedded/riscv"
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authors = ["The RISC-V Team <risc-v@teams.rust-embedded.org>"]
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categories = ["embedded", "hardware-support", "no-std"]
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description = "Low level access to RISC-V processors"
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keywords = ["riscv", "register", "peripheral"]
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license = "ISC"
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[dependencies]
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bare-metal = ">=0.2.0,<0.2.5"
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bit_field = "0.9.0"
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[features]
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inline-asm = []
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324
xous-riscv/asm.S
324
xous-riscv/asm.S
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@ -1,324 +0,0 @@
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#define REG_READ(name, offset) \
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.section .text.__read_ ## name; \
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.global __read_ ## name; \
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__read_ ## name: \
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csrrs a0, offset, x0; \
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ret
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#define REG_WRITE(name, offset) \
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.section .text.__write_ ## name; \
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.global __write_ ## name; \
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__write_ ## name: \
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csrrw x0, offset, a0; \
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ret
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#define REG_SET(name, offset) \
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.section .text.__set_ ## name; \
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.global __set_ ## name; \
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__set_ ## name: \
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csrrs x0, offset, a0; \
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ret
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#define REG_CLEAR(name, offset) \
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.section .text.__clear_ ## name; \
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.global __clear_ ## name; \
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__clear_ ## name: \
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csrrc x0, offset, a0; \
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ret
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#define REG_READ_WRITE(name, offset) REG_READ(name, offset); REG_WRITE(name, offset)
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#define REG_SET_CLEAR(name, offset) REG_SET(name, offset); REG_CLEAR(name, offset)
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#define RW(offset, name) REG_READ_WRITE(name, offset); REG_SET_CLEAR(name, offset)
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#define RO(offset, name) REG_READ(name, offset)
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#if __riscv_xlen == 32
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#define RW32(offset, name) RW(offset, name)
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#define RO32(offset, name) RO(offset, name)
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#else
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#define RW32(offset, name)
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#define RO32(offset, name)
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#endif
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// ----------------------- //
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.section .text.__ebreak
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.global __ebreak
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__ebreak:
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ebreak
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ret
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.section .text.__wfi
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.global __wfi
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__wfi:
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wfi
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ret
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.section .text.__sfence_vma_all
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.global __sfence_vma_all
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__sfence_vma_all:
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sfence.vma
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ret
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.section .text.__sfence_vma
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.global __sfence_vma
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__sfence_vma:
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sfence.vma a0, a1
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ret
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// User Trap Setup
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RW(0x000, ustatus) // User status register
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RW(0x004, uie) // User interrupt-enable register
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RW(0x005, utvec) // User trap handler base address
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// User Trap Handling
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RW(0x040, uscratch) // Scratch register for user trap handlers
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RW(0x041, uepc) // User exception program counter
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RW(0x042, ucause) // User trap cause
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RW(0x043, utval) // User bad address or instruction
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RW(0x044, uip) // User interrupt pending
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// User Floating-Point CSRs
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RW(0x001, fflags) // Floating-Point Accrued Exceptions
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RW(0x002, frm) // Floating-Point Dynamic Rounding Mode
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RW(0x003, fcsr) // Floating-Point Control and Status Register (frm + fflags)
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// User Counter/Timers
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RO( 0xC00, cycle) // Cycle counter for RDCYCLE instruction
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RO( 0xC01, time) // Timer for RDTIME instruction
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RO( 0xC02, instret) // Instructions-retired counter for RDINSTRET instruction
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RO( 0xC03, hpmcounter3) // Performance-monitoring counter
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RO( 0xC04, hpmcounter4) // Performance-monitoring counter
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RO( 0xC05, hpmcounter5) // Performance-monitoring counter
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RO( 0xC06, hpmcounter6) // Performance-monitoring counter
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RO( 0xC07, hpmcounter7) // Performance-monitoring counter
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RO( 0xC08, hpmcounter8) // Performance-monitoring counter
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RO( 0xC09, hpmcounter9) // Performance-monitoring counter
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RO( 0xC0A, hpmcounter10) // Performance-monitoring counter
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RO( 0xC0B, hpmcounter11) // Performance-monitoring counter
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RO( 0xC0C, hpmcounter12) // Performance-monitoring counter
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RO( 0xC0D, hpmcounter13) // Performance-monitoring counter
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RO( 0xC0E, hpmcounter14) // Performance-monitoring counter
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RO( 0xC0F, hpmcounter15) // Performance-monitoring counter
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RO( 0xC10, hpmcounter16) // Performance-monitoring counter
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RO( 0xC11, hpmcounter17) // Performance-monitoring counter
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RO( 0xC12, hpmcounter18) // Performance-monitoring counter
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RO( 0xC13, hpmcounter19) // Performance-monitoring counter
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RO( 0xC14, hpmcounter20) // Performance-monitoring counter
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RO( 0xC15, hpmcounter21) // Performance-monitoring counter
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RO( 0xC16, hpmcounter22) // Performance-monitoring counter
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RO( 0xC17, hpmcounter23) // Performance-monitoring counter
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RO( 0xC18, hpmcounter24) // Performance-monitoring counter
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RO( 0xC19, hpmcounter25) // Performance-monitoring counter
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RO( 0xC1A, hpmcounter26) // Performance-monitoring counter
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RO( 0xC1B, hpmcounter27) // Performance-monitoring counter
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RO( 0xC1C, hpmcounter28) // Performance-monitoring counter
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RO( 0xC1D, hpmcounter29) // Performance-monitoring counter
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RO( 0xC1E, hpmcounter30) // Performance-monitoring counter
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RO( 0xC1F, hpmcounter31) // Performance-monitoring counter
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RO32(0xC80, cycleh) // Upper 32 bits of cycle, RV32I only
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RO32(0xC81, timeh) // Upper 32 bits of time, RV32I only
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RO32(0xC82, instreth) // Upper 32 bits of instret, RV32I only
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RO32(0xC83, hpmcounter3h) // Upper 32 bits of hpmcounter3, RV32I only
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RO32(0xC84, hpmcounter4h)
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RO32(0xC85, hpmcounter5h)
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RO32(0xC86, hpmcounter6h)
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RO32(0xC87, hpmcounter7h)
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RO32(0xC88, hpmcounter8h)
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RO32(0xC89, hpmcounter9h)
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RO32(0xC8A, hpmcounter10h)
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RO32(0xC8B, hpmcounter11h)
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RO32(0xC8C, hpmcounter12h)
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RO32(0xC8D, hpmcounter13h)
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RO32(0xC8E, hpmcounter14h)
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RO32(0xC8F, hpmcounter15h)
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RO32(0xC90, hpmcounter16h)
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RO32(0xC91, hpmcounter17h)
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RO32(0xC92, hpmcounter18h)
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RO32(0xC93, hpmcounter19h)
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RO32(0xC94, hpmcounter20h)
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RO32(0xC95, hpmcounter21h)
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RO32(0xC96, hpmcounter22h)
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RO32(0xC97, hpmcounter23h)
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RO32(0xC98, hpmcounter24h)
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RO32(0xC99, hpmcounter25h)
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RO32(0xC9A, hpmcounter26h)
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RO32(0xC9B, hpmcounter27h)
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RO32(0xC9C, hpmcounter28h)
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RO32(0xC9D, hpmcounter29h)
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RO32(0xC9E, hpmcounter30h)
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RO32(0xC9F, hpmcounter31h)
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// Supervisor Trap Setup
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RW(0x100, sstatus) // Supervisor status register
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RW(0x102, sedeleg) // Supervisor exception delegation register
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RW(0x103, sideleg) // Supervisor interrupt delegation register
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RW(0x104, sie) // Supervisor interrupt-enable register
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RW(0x105, stvec) // Supervisor trap handler base address
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RW(0x106, scounteren) // Supervisor counter enable
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// Supervisor Trap Handling
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RW(0x140, sscratch) // Scratch register for supervisor trap handlers
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RW(0x141, sepc) // Supervisor exception program counter
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RW(0x142, scause) // Supervisor trap cause
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RW(0x143, stval) // Supervisor bad address or instruction
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RW(0x144, sip) // Supervisor interrupt pending
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// Supervisor Protection and Translation
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RW(0x180, satp) // Supervisor address translation and protection
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// Machine Information Registers
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RO(0xF11, mvendorid) // Vendor ID
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RO(0xF12, marchid) // Architecture ID
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RO(0xF13, mimpid) // Implementation ID
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RO(0xF14, mhartid) // Hardware thread ID
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// Machine Trap Setup
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RW(0x300, mstatus) // Machine status register
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RW(0x301, misa) // ISA and extensions
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RW(0x302, medeleg) // Machine exception delegation register
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RW(0x303, mideleg) // Machine interrupt delegation register
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RW(0x304, mie) // Machine interrupt-enable register
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RW(0x305, mtvec) // Machine trap handler base address
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RW(0x306, mcounteren) // Machine counter enable
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// Machine Trap Handling
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RW(0x340, mscratch) // Scratch register for machine trap handlers
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RW(0x341, mepc) // Machine exception program counter
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RW(0x342, mcause) // Machine trap cause
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RW(0x343, mtval) // Machine bad address or instruction
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RW(0x344, mip) // Machine interrupt pending
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// Machine Protection and Translation
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RW( 0x3A0, pmpcfg0) // Physical memory protection configuration
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RW32(0x3A1, pmpcfg1) // Physical memory protection configuration, RV32 only
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RW( 0x3A2, pmpcfg2) // Physical memory protection configuration
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RW32(0x3A3, pmpcfg3) // Physical memory protection configuration, RV32 only
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RW( 0x3B0, pmpaddr0) // Physical memory protection address register
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RW( 0x3B1, pmpaddr1) // Physical memory protection address register
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RW( 0x3B2, pmpaddr2) // Physical memory protection address register
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RW( 0x3B3, pmpaddr3) // Physical memory protection address register
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RW( 0x3B4, pmpaddr4) // Physical memory protection address register
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RW( 0x3B5, pmpaddr5) // Physical memory protection address register
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RW( 0x3B6, pmpaddr6) // Physical memory protection address register
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RW( 0x3B7, pmpaddr7) // Physical memory protection address register
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RW( 0x3B8, pmpaddr8) // Physical memory protection address register
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RW( 0x3B9, pmpaddr9) // Physical memory protection address register
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RW( 0x3BA, pmpaddr10) // Physical memory protection address register
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RW( 0x3BB, pmpaddr11) // Physical memory protection address register
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RW( 0x3BC, pmpaddr12) // Physical memory protection address register
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RW( 0x3BD, pmpaddr13) // Physical memory protection address register
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RW( 0x3BE, pmpaddr14) // Physical memory protection address register
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RW( 0x3BF, pmpaddr15) // Physical memory protection address register
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// Machine Counter/Timers
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RO( 0xB00, mcycle) // Machine cycle counter
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RO( 0xB02, minstret) // Machine instructions-retired counter
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RO( 0xB03, mhpmcounter3) // Machine performance-monitoring counter
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RO( 0xB04, mhpmcounter4) // Machine performance-monitoring counter
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RO( 0xB05, mhpmcounter5) // Machine performance-monitoring counter
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RO( 0xB06, mhpmcounter6) // Machine performance-monitoring counter
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RO( 0xB07, mhpmcounter7) // Machine performance-monitoring counter
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RO( 0xB08, mhpmcounter8) // Machine performance-monitoring counter
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RO( 0xB09, mhpmcounter9) // Machine performance-monitoring counter
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RO( 0xB0A, mhpmcounter10) // Machine performance-monitoring counter
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RO( 0xB0B, mhpmcounter11) // Machine performance-monitoring counter
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RO( 0xB0C, mhpmcounter12) // Machine performance-monitoring counter
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RO( 0xB0D, mhpmcounter13) // Machine performance-monitoring counter
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RO( 0xB0E, mhpmcounter14) // Machine performance-monitoring counter
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RO( 0xB0F, mhpmcounter15) // Machine performance-monitoring counter
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RO( 0xB10, mhpmcounter16) // Machine performance-monitoring counter
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RO( 0xB11, mhpmcounter17) // Machine performance-monitoring counter
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RO( 0xB12, mhpmcounter18) // Machine performance-monitoring counter
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RO( 0xB13, mhpmcounter19) // Machine performance-monitoring counter
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RO( 0xB14, mhpmcounter20) // Machine performance-monitoring counter
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RO( 0xB15, mhpmcounter21) // Machine performance-monitoring counter
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RO( 0xB16, mhpmcounter22) // Machine performance-monitoring counter
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RO( 0xB17, mhpmcounter23) // Machine performance-monitoring counter
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RO( 0xB18, mhpmcounter24) // Machine performance-monitoring counter
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RO( 0xB19, mhpmcounter25) // Machine performance-monitoring counter
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RO( 0xB1A, mhpmcounter26) // Machine performance-monitoring counter
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RO( 0xB1B, mhpmcounter27) // Machine performance-monitoring counter
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RO( 0xB1C, mhpmcounter28) // Machine performance-monitoring counter
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RO( 0xB1D, mhpmcounter29) // Machine performance-monitoring counter
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RO( 0xB1E, mhpmcounter30) // Machine performance-monitoring counter
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RO( 0xB1F, mhpmcounter31) // Machine performance-monitoring counter
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RO32(0xB80, mcycleh) // Upper 32 bits of mcycle, RV32I only
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RO32(0xB82, minstreth) // Upper 32 bits of minstret, RV32I only
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RO32(0xB83, mhpmcounter3h) // Upper 32 bits of mhpmcounter3, RV32I only
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RO32(0xB84, mhpmcounter4h)
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RO32(0xB85, mhpmcounter5h)
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RO32(0xB86, mhpmcounter6h)
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RO32(0xB87, mhpmcounter7h)
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RO32(0xB88, mhpmcounter8h)
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RO32(0xB89, mhpmcounter9h)
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RO32(0xB8A, mhpmcounter10h)
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RO32(0xB8B, mhpmcounter11h)
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RO32(0xB8C, mhpmcounter12h)
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RO32(0xB8D, mhpmcounter13h)
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RO32(0xB8E, mhpmcounter14h)
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RO32(0xB8F, mhpmcounter15h)
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RO32(0xB90, mhpmcounter16h)
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RO32(0xB91, mhpmcounter17h)
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RO32(0xB92, mhpmcounter18h)
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RO32(0xB93, mhpmcounter19h)
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RO32(0xB94, mhpmcounter20h)
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RO32(0xB95, mhpmcounter21h)
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RO32(0xB96, mhpmcounter22h)
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RO32(0xB97, mhpmcounter23h)
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RO32(0xB98, mhpmcounter24h)
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RO32(0xB99, mhpmcounter25h)
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RO32(0xB9A, mhpmcounter26h)
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RO32(0xB9B, mhpmcounter27h)
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RO32(0xB9C, mhpmcounter28h)
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RO32(0xB9D, mhpmcounter29h)
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RO32(0xB9E, mhpmcounter30h)
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RO32(0xB9F, mhpmcounter31h)
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RW(0x323, mhpmevent3) // Machine performance-monitoring event selector
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RW(0x324, mhpmevent4) // Machine performance-monitoring event selector
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RW(0x325, mhpmevent5) // Machine performance-monitoring event selector
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RW(0x326, mhpmevent6) // Machine performance-monitoring event selector
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RW(0x327, mhpmevent7) // Machine performance-monitoring event selector
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RW(0x328, mhpmevent8) // Machine performance-monitoring event selector
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RW(0x329, mhpmevent9) // Machine performance-monitoring event selector
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RW(0x32A, mhpmevent10) // Machine performance-monitoring event selector
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RW(0x32B, mhpmevent11) // Machine performance-monitoring event selector
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RW(0x32C, mhpmevent12) // Machine performance-monitoring event selector
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RW(0x32D, mhpmevent13) // Machine performance-monitoring event selector
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RW(0x32E, mhpmevent14) // Machine performance-monitoring event selector
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RW(0x32F, mhpmevent15) // Machine performance-monitoring event selector
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RW(0x330, mhpmevent16) // Machine performance-monitoring event selector
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RW(0x331, mhpmevent17) // Machine performance-monitoring event selector
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RW(0x332, mhpmevent18) // Machine performance-monitoring event selector
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RW(0x333, mhpmevent19) // Machine performance-monitoring event selector
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RW(0x334, mhpmevent20) // Machine performance-monitoring event selector
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RW(0x335, mhpmevent21) // Machine performance-monitoring event selector
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RW(0x336, mhpmevent22) // Machine performance-monitoring event selector
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RW(0x337, mhpmevent23) // Machine performance-monitoring event selector
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RW(0x338, mhpmevent24) // Machine performance-monitoring event selector
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RW(0x339, mhpmevent25) // Machine performance-monitoring event selector
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RW(0x33A, mhpmevent26) // Machine performance-monitoring event selector
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RW(0x33B, mhpmevent27) // Machine performance-monitoring event selector
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RW(0x33C, mhpmevent28) // Machine performance-monitoring event selector
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RW(0x33D, mhpmevent29) // Machine performance-monitoring event selector
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RW(0x33E, mhpmevent30) // Machine performance-monitoring event selector
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RW(0x33F, mhpmevent31) // Machine performance-monitoring event selector
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// Debug/Trace Registers (shared with Debug Mode)
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RW(0x7A0, tselect) // Debug/Trace trigger register select
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RW(0x7A1, tdata1) // First Debug/Trace trigger data register
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RW(0x7A2, tdata2) // Second Debug/Trace trigger data register
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RW(0x7A3, tdata3) // Third Debug/Trace trigger data register
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// Debug Mode Registers
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RW(0x7B0, dcsr) // Debug control and status register
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RW(0x7B1, dpc) // Debug PC
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RW(0x7B2, dscratch) // Debug scratch register
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// VexRiscv custom registers
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RW(0xBC0, vmim) // Machine IRQ Mask
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RW(0xFC0, vmip) // Machine IRQ Pending
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RW(0x9C0, vsim) // Supervisor IRQ Mask
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RW(0xDC0, vsip) // Supervisor IRQ Pending
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RW(0xCC0, vdci) // DCache Info
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@ -1,19 +0,0 @@
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New-Item -Force -Name bin -Type Directory
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# remove existing blobs because otherwise this will append object files to the old blobs
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Remove-Item -Force bin/*.a
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$crate = "xous-riscv"
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riscv64-unknown-elf-gcc -c -mabi=ilp32 -march=rv32imac asm.S -o bin/$crate.o
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riscv64-unknown-elf-ar crs bin/riscv32imac-unknown-none-elf.a bin/$crate.o
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riscv64-unknown-elf-ar crs bin/riscv32imc-unknown-none-elf.a bin/$crate.o
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riscv64-unknown-elf-gcc -c -mabi=ilp32 -march=rv32i asm.S -DSKIP_MULTICORE -o bin/$crate.o
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riscv64-unknown-elf-ar crs bin/riscv32i-unknown-none-elf.a bin/$crate.o
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riscv64-unknown-elf-gcc -c -mabi=lp64 -march=rv64imac asm.S -o bin/$crate.o
|
||||
riscv64-unknown-elf-ar crs bin/riscv64imac-unknown-none-elf.a bin/$crate.o
|
||||
riscv64-unknown-elf-ar crs bin/riscv64gc-unknown-none-elf.a bin/$crate.o
|
||||
|
||||
Remove-Item bin/$crate.o
|
||||
|
|
@ -1,21 +0,0 @@
|
|||
#!/bin/bash
|
||||
|
||||
set -euxo pipefail
|
||||
|
||||
crate=riscv-rt
|
||||
|
||||
# remove existing blobs because otherwise this will append object files to the old blobs
|
||||
rm -f bin/*.a
|
||||
|
||||
riscv64-unknown-elf-gcc -c -mabi=ilp32 -march=rv32imac asm.S -o bin/$crate.o
|
||||
ar crs bin/riscv32imac-unknown-none-elf.a bin/$crate.o
|
||||
ar crs bin/riscv32imc-unknown-none-elf.a bin/$crate.o
|
||||
|
||||
riscv64-unknown-elf-gcc -c -mabi=ilp32 -march=rv32i asm.S -DSKIP_MULTICORE -o bin/$crate.o
|
||||
ar crs bin/riscv32i-unknown-none-elf.a bin/$crate.o
|
||||
|
||||
riscv64-unknown-elf-gcc -c -mabi=lp64 -march=rv64imac asm.S -o bin/$crate.o
|
||||
ar crs bin/riscv64imac-unknown-none-elf.a bin/$crate.o
|
||||
ar crs bin/riscv64gc-unknown-none-elf.a bin/$crate.o
|
||||
|
||||
rm bin/$crate.o
|
||||
Binary file not shown.
Binary file not shown.
Binary file not shown.
Binary file not shown.
Binary file not shown.
|
|
@ -1,26 +0,0 @@
|
|||
use std::path::PathBuf;
|
||||
use std::{env, fs};
|
||||
|
||||
fn main() {
|
||||
let target = env::var("TARGET").unwrap();
|
||||
let out_dir = PathBuf::from(env::var("OUT_DIR").unwrap());
|
||||
let name = env::var("CARGO_PKG_NAME").unwrap();
|
||||
|
||||
if target.starts_with("riscv") && env::var_os("CARGO_FEATURE_INLINE_ASM").is_none() {
|
||||
fs::copy(
|
||||
format!("bin/{}.a", target),
|
||||
out_dir.join(format!("lib{}.a", name)),
|
||||
).unwrap();
|
||||
|
||||
println!("cargo:rustc-link-lib=static={}", name);
|
||||
println!("cargo:rustc-link-search={}", out_dir.display());
|
||||
}
|
||||
|
||||
if target.starts_with("riscv32") {
|
||||
println!("cargo:rustc-cfg=riscv");
|
||||
println!("cargo:rustc-cfg=riscv32");
|
||||
} else if target.starts_with("riscv64") {
|
||||
println!("cargo:rustc-cfg=riscv");
|
||||
println!("cargo:rustc-cfg=riscv64");
|
||||
}
|
||||
}
|
||||
|
|
@ -1,77 +0,0 @@
|
|||
//! Assembly instructions
|
||||
|
||||
macro_rules! instruction {
|
||||
($(#[$attr:meta])*, $fnname:ident, $asm:expr, $asm_fn:ident) => (
|
||||
$(#[$attr])*
|
||||
#[inline]
|
||||
pub unsafe fn $fnname() {
|
||||
match () {
|
||||
#[cfg(all(riscv, feature = "inline-asm"))]
|
||||
() => asm!($asm :::: "volatile"),
|
||||
|
||||
#[cfg(all(riscv, not(feature = "inline-asm")))]
|
||||
() => {
|
||||
extern "C" {
|
||||
fn $asm_fn();
|
||||
}
|
||||
|
||||
$asm_fn();
|
||||
}
|
||||
|
||||
#[cfg(not(riscv))]
|
||||
() => unimplemented!(),
|
||||
}
|
||||
}
|
||||
)
|
||||
}
|
||||
|
||||
|
||||
instruction!(
|
||||
/// `EBREAK` instruction wrapper
|
||||
///
|
||||
/// Generates a breakpoint exception.
|
||||
, ebreak, "ebreak", __ebreak);
|
||||
instruction!(
|
||||
/// `WFI` instruction wrapper
|
||||
///
|
||||
/// Provides a hint to the implementation that the current hart can be stalled until an interrupt might need servicing.
|
||||
/// The WFI instruction is just a hint, and a legal implementation is to implement WFI as a NOP.
|
||||
, wfi, "wfi", __wfi);
|
||||
instruction!(
|
||||
/// `SFENCE.VMA` instruction wrapper (all address spaces and page table levels)
|
||||
///
|
||||
/// Synchronizes updates to in-memory memory-management data structures with current execution.
|
||||
/// Instruction execution causes implicit reads and writes to these data structures; however, these implicit references
|
||||
/// are ordinarily not ordered with respect to loads and stores in the instruction stream.
|
||||
/// Executing an `SFENCE.VMA` instruction guarantees that any stores in the instruction stream prior to the
|
||||
/// `SFENCE.VMA` are ordered before all implicit references subsequent to the `SFENCE.VMA`.
|
||||
, sfence_vma_all, "sfence.vma", __sfence_vma_all);
|
||||
|
||||
|
||||
/// `SFENCE.VMA` instruction wrapper
|
||||
///
|
||||
/// Synchronizes updates to in-memory memory-management data structures with current execution.
|
||||
/// Instruction execution causes implicit reads and writes to these data structures; however, these implicit references
|
||||
/// are ordinarily not ordered with respect to loads and stores in the instruction stream.
|
||||
/// Executing an `SFENCE.VMA` instruction guarantees that any stores in the instruction stream prior to the
|
||||
/// `SFENCE.VMA` are ordered before all implicit references subsequent to the `SFENCE.VMA`.
|
||||
#[inline]
|
||||
#[allow(unused_variables)]
|
||||
pub unsafe fn sfence_vma(asid: usize, addr: usize) {
|
||||
match () {
|
||||
#[cfg(all(riscv, feature = "inline-asm"))]
|
||||
() => asm!("sfence.vma $0, $1" :: "r"(asid), "r"(addr) :: "volatile"),
|
||||
|
||||
#[cfg(all(riscv, not(feature = "inline-asm")))]
|
||||
() => {
|
||||
extern "C" {
|
||||
fn __sfence_vma(asid: usize, addr: usize);
|
||||
}
|
||||
|
||||
__sfence_vma(asid, addr);
|
||||
}
|
||||
|
||||
#[cfg(not(riscv))]
|
||||
() => unimplemented!(),
|
||||
}
|
||||
}
|
||||
|
|
@ -1,54 +0,0 @@
|
|||
//! Interrupts
|
||||
|
||||
// NOTE: Adapted from cortex-m/src/interrupt.rs
|
||||
pub use bare_metal::{CriticalSection, Mutex, Nr};
|
||||
use register::mstatus;
|
||||
|
||||
/// Disables all interrupts
|
||||
#[inline]
|
||||
pub unsafe fn disable() {
|
||||
match () {
|
||||
#[cfg(riscv)]
|
||||
() => mstatus::clear_mie(),
|
||||
#[cfg(not(riscv))]
|
||||
() => unimplemented!(),
|
||||
}
|
||||
}
|
||||
|
||||
/// Enables all the interrupts
|
||||
///
|
||||
/// # Safety
|
||||
///
|
||||
/// - Do not call this function inside an `interrupt::free` critical section
|
||||
#[inline]
|
||||
pub unsafe fn enable() {
|
||||
match () {
|
||||
#[cfg(riscv)]
|
||||
() => mstatus::set_mie(),
|
||||
#[cfg(not(riscv))]
|
||||
() => unimplemented!(),
|
||||
}
|
||||
}
|
||||
|
||||
/// Execute closure `f` in an interrupt-free context.
|
||||
///
|
||||
/// This as also known as a "critical section".
|
||||
pub fn free<F, R>(f: F) -> R
|
||||
where
|
||||
F: FnOnce(&CriticalSection) -> R,
|
||||
{
|
||||
let mstatus = mstatus::read();
|
||||
|
||||
// disable interrupts
|
||||
unsafe { disable(); }
|
||||
|
||||
let r = f(unsafe { &CriticalSection::new() });
|
||||
|
||||
// If the interrupts were active before our `disable` call, then re-enable
|
||||
// them. Otherwise, keep them disabled
|
||||
if mstatus.mie() {
|
||||
unsafe { enable(); }
|
||||
}
|
||||
|
||||
r
|
||||
}
|
||||
|
|
@ -1,27 +0,0 @@
|
|||
//! Low level access to RISC-V processors
|
||||
//!
|
||||
//! # Minimum Supported Rust Version (MSRV)
|
||||
//!
|
||||
//! This crate is guaranteed to compile on stable Rust 1.30 and up. It *might*
|
||||
//! compile with older versions but that may change in any new patch release.
|
||||
//! Note that `riscv64imac-unknown-none-elf` and `riscv64gc-unknown-none-elf` targets
|
||||
//! are not supported on stable yet.
|
||||
//!
|
||||
//! # Features
|
||||
//!
|
||||
//! This crate provides:
|
||||
//!
|
||||
//! - Access to core registers like `mstatus` or `mcause`.
|
||||
//! - Interrupt manipulation mechanisms.
|
||||
//! - Wrappers around assembly instructions like `WFI`.
|
||||
|
||||
#![no_std]
|
||||
#![deny(warnings)]
|
||||
#![cfg_attr(feature = "inline-asm", feature(asm))]
|
||||
|
||||
extern crate bare_metal;
|
||||
extern crate bit_field;
|
||||
|
||||
pub mod asm;
|
||||
pub mod interrupt;
|
||||
pub mod register;
|
||||
|
|
@ -1,132 +0,0 @@
|
|||
//! Floating-point control and status register
|
||||
|
||||
use bit_field::BitField;
|
||||
|
||||
/// Floating-point control and status register
|
||||
#[derive(Clone, Copy, Debug)]
|
||||
pub struct FCSR {
|
||||
bits: u32,
|
||||
}
|
||||
|
||||
/// Accrued Exception Flags
|
||||
#[derive(Clone, Copy, Debug)]
|
||||
pub struct Flags(u32);
|
||||
|
||||
/// Accrued Exception Flag
|
||||
#[derive(Clone, Copy, Debug)]
|
||||
pub enum Flag {
|
||||
/// Inexact
|
||||
NX = 0b00001,
|
||||
|
||||
/// Underflow
|
||||
UF = 0b00010,
|
||||
|
||||
/// Overflow
|
||||
OF = 0b00100,
|
||||
|
||||
/// Divide by Zero
|
||||
DZ = 0b01000,
|
||||
|
||||
/// Invalid Operation
|
||||
NV = 0b10000,
|
||||
}
|
||||
|
||||
impl Flags {
|
||||
/// Inexact
|
||||
#[inline]
|
||||
pub fn nx(&self) -> bool {
|
||||
self.0.get_bit(0)
|
||||
}
|
||||
|
||||
/// Underflow
|
||||
#[inline]
|
||||
pub fn uf(&self) -> bool {
|
||||
self.0.get_bit(1)
|
||||
}
|
||||
|
||||
/// Overflow
|
||||
#[inline]
|
||||
pub fn of(&self) -> bool {
|
||||
self.0.get_bit(2)
|
||||
}
|
||||
|
||||
/// Divide by Zero
|
||||
#[inline]
|
||||
pub fn dz(&self) -> bool {
|
||||
self.0.get_bit(3)
|
||||
}
|
||||
|
||||
/// Invalid Operation
|
||||
#[inline]
|
||||
pub fn nv(&self) -> bool {
|
||||
self.0.get_bit(4)
|
||||
}
|
||||
}
|
||||
|
||||
/// Rounding Mode
|
||||
#[derive(Clone, Copy, Debug, Eq, PartialEq)]
|
||||
pub enum RoundingMode {
|
||||
RoundToNearestEven = 0b000,
|
||||
RoundTowardsZero = 0b001,
|
||||
RoundDown = 0b010,
|
||||
RoundUp = 0b011,
|
||||
RoundToNearestMaxMagnitude = 0b100,
|
||||
Invalid = 0b111,
|
||||
}
|
||||
|
||||
impl FCSR {
|
||||
/// Returns the contents of the register as raw bits
|
||||
pub fn bits(&self) -> u32 {
|
||||
self.bits
|
||||
}
|
||||
|
||||
/// Accrued Exception Flags
|
||||
#[inline]
|
||||
pub fn fflags(&self) -> Flags {
|
||||
Flags(self.bits.get_bits(0..5))
|
||||
}
|
||||
|
||||
/// Rounding Mode
|
||||
#[inline]
|
||||
pub fn frm(&self) -> RoundingMode {
|
||||
match self.bits.get_bits(5..8) {
|
||||
0b000 => RoundingMode::RoundToNearestEven,
|
||||
0b001 => RoundingMode::RoundTowardsZero,
|
||||
0b010 => RoundingMode::RoundDown,
|
||||
0b011 => RoundingMode::RoundUp,
|
||||
0b100 => RoundingMode::RoundToNearestMaxMagnitude,
|
||||
_ => RoundingMode::Invalid,
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
read_csr!(0x003, __read_fcsr);
|
||||
write_csr!(0x003, __write_fcsr);
|
||||
clear!(0x003, __clear_fcsr);
|
||||
|
||||
/// Reads the CSR
|
||||
#[inline]
|
||||
pub fn read() -> FCSR {
|
||||
FCSR { bits: unsafe{ _read() as u32 } }
|
||||
}
|
||||
|
||||
/// Writes the CSR
|
||||
#[inline]
|
||||
pub unsafe fn set_rounding_mode(frm: RoundingMode) {
|
||||
let old = read();
|
||||
let bits = ((frm as u32) << 5) | old.fflags().0;
|
||||
_write(bits as usize);
|
||||
}
|
||||
|
||||
/// Resets `fflags` field bits
|
||||
#[inline]
|
||||
pub unsafe fn clear_flags() {
|
||||
let mask = 0b11111;
|
||||
_clear(mask);
|
||||
}
|
||||
|
||||
/// Resets `fflags` field bit
|
||||
#[inline]
|
||||
pub unsafe fn clear_flag(flag: Flag) {
|
||||
_clear(flag as usize);
|
||||
}
|
||||
|
|
@ -1,82 +0,0 @@
|
|||
macro_rules! reg {
|
||||
(
|
||||
$addr:expr, $csrl:ident, $csrh:ident, $readf:ident, $writef:ident
|
||||
) => {
|
||||
/// Performance-monitoring counter
|
||||
pub mod $csrl {
|
||||
read_csr_as_usize!($addr, $readf);
|
||||
read_composite_csr!(super::$csrh::read(), read());
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
macro_rules! regh {
|
||||
(
|
||||
$addr:expr, $csrh:ident, $readf:ident, $writef:ident
|
||||
) => {
|
||||
/// Upper 32 bits of performance-monitoring counter (RV32I only)
|
||||
pub mod $csrh {
|
||||
read_csr_as_usize_rv32!($addr, $readf);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
reg!(0xC03, hpmcounter3, hpmcounter3h, __read_hpmcounter3, __write_hpmcounter3);
|
||||
reg!(0xC04, hpmcounter4, hpmcounter4h, __read_hpmcounter4, __write_hpmcounter4);
|
||||
reg!(0xC05, hpmcounter5, hpmcounter5h, __read_hpmcounter5, __write_hpmcounter5);
|
||||
reg!(0xC06, hpmcounter6, hpmcounter6h, __read_hpmcounter6, __write_hpmcounter6);
|
||||
reg!(0xC07, hpmcounter7, hpmcounter7h, __read_hpmcounter7, __write_hpmcounter7);
|
||||
reg!(0xC08, hpmcounter8, hpmcounter8h, __read_hpmcounter8, __write_hpmcounter8);
|
||||
reg!(0xC09, hpmcounter9, hpmcounter9h, __read_hpmcounter9, __write_hpmcounter9);
|
||||
reg!(0xC0A, hpmcounter10, hpmcounter10h, __read_hpmcounter10, __write_hpmcounter10);
|
||||
reg!(0xC0B, hpmcounter11, hpmcounter11h, __read_hpmcounter11, __write_hpmcounter11);
|
||||
reg!(0xC0C, hpmcounter12, hpmcounter12h, __read_hpmcounter12, __write_hpmcounter12);
|
||||
reg!(0xC0D, hpmcounter13, hpmcounter13h, __read_hpmcounter13, __write_hpmcounter13);
|
||||
reg!(0xC0E, hpmcounter14, hpmcounter14h, __read_hpmcounter14, __write_hpmcounter14);
|
||||
reg!(0xC0F, hpmcounter15, hpmcounter15h, __read_hpmcounter15, __write_hpmcounter15);
|
||||
reg!(0xC10, hpmcounter16, hpmcounter16h, __read_hpmcounter16, __write_hpmcounter16);
|
||||
reg!(0xC11, hpmcounter17, hpmcounter17h, __read_hpmcounter17, __write_hpmcounter17);
|
||||
reg!(0xC12, hpmcounter18, hpmcounter18h, __read_hpmcounter18, __write_hpmcounter18);
|
||||
reg!(0xC13, hpmcounter19, hpmcounter19h, __read_hpmcounter19, __write_hpmcounter19);
|
||||
reg!(0xC14, hpmcounter20, hpmcounter20h, __read_hpmcounter20, __write_hpmcounter20);
|
||||
reg!(0xC15, hpmcounter21, hpmcounter21h, __read_hpmcounter21, __write_hpmcounter21);
|
||||
reg!(0xC16, hpmcounter22, hpmcounter22h, __read_hpmcounter22, __write_hpmcounter22);
|
||||
reg!(0xC17, hpmcounter23, hpmcounter23h, __read_hpmcounter23, __write_hpmcounter23);
|
||||
reg!(0xC18, hpmcounter24, hpmcounter24h, __read_hpmcounter24, __write_hpmcounter24);
|
||||
reg!(0xC19, hpmcounter25, hpmcounter25h, __read_hpmcounter25, __write_hpmcounter25);
|
||||
reg!(0xC1A, hpmcounter26, hpmcounter26h, __read_hpmcounter26, __write_hpmcounter26);
|
||||
reg!(0xC1B, hpmcounter27, hpmcounter27h, __read_hpmcounter27, __write_hpmcounter27);
|
||||
reg!(0xC1C, hpmcounter28, hpmcounter28h, __read_hpmcounter28, __write_hpmcounter28);
|
||||
reg!(0xC1D, hpmcounter29, hpmcounter29h, __read_hpmcounter29, __write_hpmcounter29);
|
||||
reg!(0xC1E, hpmcounter30, hpmcounter30h, __read_hpmcounter30, __write_hpmcounter30);
|
||||
reg!(0xC1F, hpmcounter31, hpmcounter31h, __read_hpmcounter31, __write_hpmcounter31);
|
||||
|
||||
regh!(0xC83, hpmcounter3h, __read_hpmcounter3h, __write_hpmcounter3h);
|
||||
regh!(0xC84, hpmcounter4h, __read_hpmcounter4h, __write_hpmcounter4h);
|
||||
regh!(0xC85, hpmcounter5h, __read_hpmcounter5h, __write_hpmcounter5h);
|
||||
regh!(0xC86, hpmcounter6h, __read_hpmcounter6h, __write_hpmcounter6h);
|
||||
regh!(0xC87, hpmcounter7h, __read_hpmcounter7h, __write_hpmcounter7h);
|
||||
regh!(0xC88, hpmcounter8h, __read_hpmcounter8h, __write_hpmcounter8h);
|
||||
regh!(0xC89, hpmcounter9h, __read_hpmcounter9h, __write_hpmcounter9h);
|
||||
regh!(0xC8A, hpmcounter10h, __read_hpmcounter10h, __write_hpmcounter10h);
|
||||
regh!(0xC8B, hpmcounter11h, __read_hpmcounter11h, __write_hpmcounter11h);
|
||||
regh!(0xC8C, hpmcounter12h, __read_hpmcounter12h, __write_hpmcounter12h);
|
||||
regh!(0xC8D, hpmcounter13h, __read_hpmcounter13h, __write_hpmcounter13h);
|
||||
regh!(0xC8E, hpmcounter14h, __read_hpmcounter14h, __write_hpmcounter14h);
|
||||
regh!(0xC8F, hpmcounter15h, __read_hpmcounter15h, __write_hpmcounter15h);
|
||||
regh!(0xC90, hpmcounter16h, __read_hpmcounter16h, __write_hpmcounter16h);
|
||||
regh!(0xC91, hpmcounter17h, __read_hpmcounter17h, __write_hpmcounter17h);
|
||||
regh!(0xC92, hpmcounter18h, __read_hpmcounter18h, __write_hpmcounter18h);
|
||||
regh!(0xC93, hpmcounter19h, __read_hpmcounter19h, __write_hpmcounter19h);
|
||||
regh!(0xC94, hpmcounter20h, __read_hpmcounter20h, __write_hpmcounter20h);
|
||||
regh!(0xC95, hpmcounter21h, __read_hpmcounter21h, __write_hpmcounter21h);
|
||||
regh!(0xC96, hpmcounter22h, __read_hpmcounter22h, __write_hpmcounter22h);
|
||||
regh!(0xC97, hpmcounter23h, __read_hpmcounter23h, __write_hpmcounter23h);
|
||||
regh!(0xC98, hpmcounter24h, __read_hpmcounter24h, __write_hpmcounter24h);
|
||||
regh!(0xC99, hpmcounter25h, __read_hpmcounter25h, __write_hpmcounter25h);
|
||||
regh!(0xC9A, hpmcounter26h, __read_hpmcounter26h, __write_hpmcounter26h);
|
||||
regh!(0xC9B, hpmcounter27h, __read_hpmcounter27h, __write_hpmcounter27h);
|
||||
regh!(0xC9C, hpmcounter28h, __read_hpmcounter28h, __write_hpmcounter28h);
|
||||
regh!(0xC9D, hpmcounter29h, __read_hpmcounter29h, __write_hpmcounter29h);
|
||||
regh!(0xC9E, hpmcounter30h, __read_hpmcounter30h, __write_hpmcounter30h);
|
||||
regh!(0xC9F, hpmcounter31h, __read_hpmcounter31h, __write_hpmcounter31h);
|
||||
|
|
@ -1,270 +0,0 @@
|
|||
macro_rules! read_csr {
|
||||
($csr_number:expr, $asm_fn: ident) => {
|
||||
/// Reads the CSR
|
||||
#[inline]
|
||||
unsafe fn _read() -> usize {
|
||||
match () {
|
||||
#[cfg(all(riscv, feature = "inline-asm"))]
|
||||
() => {
|
||||
let r: usize;
|
||||
asm!("csrrs $0, $1, x0" : "=r"(r) : "i"($csr_number) :: "volatile");
|
||||
r
|
||||
}
|
||||
|
||||
#[cfg(all(riscv, not(feature = "inline-asm")))]
|
||||
() => {
|
||||
extern "C" {
|
||||
fn $asm_fn() -> usize;
|
||||
}
|
||||
|
||||
$asm_fn()
|
||||
}
|
||||
|
||||
#[cfg(not(riscv))]
|
||||
() => unimplemented!(),
|
||||
}
|
||||
}
|
||||
};
|
||||
}
|
||||
|
||||
macro_rules! read_csr_rv32 {
|
||||
($csr_number:expr, $asm_fn: ident) => {
|
||||
/// Reads the CSR
|
||||
#[inline]
|
||||
unsafe fn _read() -> usize {
|
||||
match () {
|
||||
#[cfg(all(riscv32, feature = "inline-asm"))]
|
||||
() => {
|
||||
let r: usize;
|
||||
asm!("csrrs $0, $1, x0" : "=r"(r) : "i"($csr_number) :: "volatile");
|
||||
r
|
||||
}
|
||||
|
||||
#[cfg(all(riscv32, not(feature = "inline-asm")))]
|
||||
() => {
|
||||
extern "C" {
|
||||
fn $asm_fn() -> usize;
|
||||
}
|
||||
|
||||
$asm_fn()
|
||||
}
|
||||
|
||||
#[cfg(not(riscv32))]
|
||||
() => unimplemented!(),
|
||||
}
|
||||
}
|
||||
};
|
||||
}
|
||||
|
||||
macro_rules! read_csr_as {
|
||||
($register:ident, $csr_number:expr, $asm_fn: ident) => {
|
||||
read_csr!($csr_number, $asm_fn);
|
||||
|
||||
/// Reads the CSR
|
||||
#[inline]
|
||||
pub fn read() -> $register {
|
||||
$register { bits: unsafe{ _read() } }
|
||||
}
|
||||
};
|
||||
}
|
||||
|
||||
macro_rules! read_csr_as_usize {
|
||||
($csr_number:expr, $asm_fn: ident) => {
|
||||
read_csr!($csr_number, $asm_fn);
|
||||
|
||||
/// Reads the CSR
|
||||
#[inline]
|
||||
pub fn read() -> usize {
|
||||
unsafe{ _read() }
|
||||
}
|
||||
};
|
||||
}
|
||||
|
||||
macro_rules! read_csr_as_usize_rv32 {
|
||||
($csr_number:expr, $asm_fn: ident) => {
|
||||
read_csr_rv32!($csr_number, $asm_fn);
|
||||
|
||||
/// Reads the CSR
|
||||
#[inline]
|
||||
pub fn read() -> usize {
|
||||
unsafe{ _read() }
|
||||
}
|
||||
};
|
||||
}
|
||||
|
||||
macro_rules! write_csr {
|
||||
($csr_number:expr, $asm_fn: ident) => {
|
||||
/// Writes the CSR
|
||||
#[inline]
|
||||
#[allow(unused_variables)]
|
||||
unsafe fn _write(bits: usize) {
|
||||
match () {
|
||||
#[cfg(all(riscv, feature = "inline-asm"))]
|
||||
() => asm!("csrrw x0, $1, $0" :: "r"(bits), "i"($csr_number) :: "volatile"),
|
||||
|
||||
#[cfg(all(riscv, not(feature = "inline-asm")))]
|
||||
() => {
|
||||
extern "C" {
|
||||
fn $asm_fn(bits: usize);
|
||||
}
|
||||
|
||||
$asm_fn(bits);
|
||||
}
|
||||
|
||||
#[cfg(not(riscv))]
|
||||
() => unimplemented!(),
|
||||
}
|
||||
}
|
||||
};
|
||||
}
|
||||
|
||||
macro_rules! write_csr_rv32 {
|
||||
($csr_number:expr, $asm_fn: ident) => {
|
||||
/// Writes the CSR
|
||||
#[inline]
|
||||
#[allow(unused_variables)]
|
||||
unsafe fn _write(bits: usize) {
|
||||
match () {
|
||||
#[cfg(all(riscv32, feature = "inline-asm"))]
|
||||
() => asm!("csrrw x0, $1, $0" :: "r"(bits), "i"($csr_number) :: "volatile"),
|
||||
|
||||
#[cfg(all(riscv32, not(feature = "inline-asm")))]
|
||||
() => {
|
||||
extern "C" {
|
||||
fn $asm_fn(bits: usize);
|
||||
}
|
||||
|
||||
$asm_fn(bits);
|
||||
}
|
||||
|
||||
#[cfg(not(riscv32))]
|
||||
() => unimplemented!(),
|
||||
}
|
||||
}
|
||||
};
|
||||
}
|
||||
|
||||
macro_rules! write_csr_as_usize {
|
||||
($csr_number:expr, $asm_fn: ident) => {
|
||||
write_csr!($csr_number, $asm_fn);
|
||||
|
||||
/// Writes the CSR
|
||||
#[inline]
|
||||
pub fn write(bits: usize) {
|
||||
unsafe{ _write(bits) }
|
||||
}
|
||||
};
|
||||
}
|
||||
|
||||
macro_rules! write_csr_as_usize_rv32 {
|
||||
($csr_number:expr, $asm_fn: ident) => {
|
||||
write_csr_rv32!($csr_number, $asm_fn);
|
||||
|
||||
/// Writes the CSR
|
||||
#[inline]
|
||||
pub fn write(bits: usize) {
|
||||
unsafe{ _write(bits) }
|
||||
}
|
||||
};
|
||||
}
|
||||
|
||||
macro_rules! set {
|
||||
($csr_number:expr, $asm_fn: ident) => {
|
||||
/// Set the CSR
|
||||
#[inline]
|
||||
#[allow(unused_variables)]
|
||||
unsafe fn _set(bits: usize) {
|
||||
match () {
|
||||
#[cfg(all(riscv, feature = "inline-asm"))]
|
||||
() => asm!("csrrs x0, $1, $0" :: "r"(bits), "i"($csr_number) :: "volatile"),
|
||||
|
||||
#[cfg(all(riscv, not(feature = "inline-asm")))]
|
||||
() => {
|
||||
extern "C" {
|
||||
fn $asm_fn(bits: usize);
|
||||
}
|
||||
|
||||
$asm_fn(bits);
|
||||
}
|
||||
|
||||
#[cfg(not(riscv))]
|
||||
() => unimplemented!(),
|
||||
}
|
||||
}
|
||||
};
|
||||
}
|
||||
|
||||
macro_rules! clear {
|
||||
($csr_number:expr, $asm_fn: ident) => {
|
||||
/// Clear the CSR
|
||||
#[inline]
|
||||
#[allow(unused_variables)]
|
||||
unsafe fn _clear(bits: usize) {
|
||||
match () {
|
||||
#[cfg(all(riscv, feature = "inline-asm"))]
|
||||
() => asm!("csrrc x0, $1, $0" :: "r"(bits), "i"($csr_number) :: "volatile"),
|
||||
|
||||
#[cfg(all(riscv, not(feature = "inline-asm")))]
|
||||
() => {
|
||||
extern "C" {
|
||||
fn $asm_fn(bits: usize);
|
||||
}
|
||||
|
||||
$asm_fn(bits);
|
||||
}
|
||||
|
||||
#[cfg(not(riscv))]
|
||||
() => unimplemented!(),
|
||||
}
|
||||
}
|
||||
};
|
||||
}
|
||||
|
||||
macro_rules! set_csr {
|
||||
($(#[$attr:meta])*, $set_field:ident, $e:expr) => {
|
||||
$(#[$attr])*
|
||||
#[inline]
|
||||
pub unsafe fn $set_field() {
|
||||
_set($e);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
macro_rules! clear_csr {
|
||||
($(#[$attr:meta])*, $clear_field:ident, $e:expr) => {
|
||||
$(#[$attr])*
|
||||
#[inline]
|
||||
pub unsafe fn $clear_field() {
|
||||
_clear($e);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
macro_rules! set_clear_csr {
|
||||
($(#[$attr:meta])*, $set_field:ident, $clear_field:ident, $e:expr) => {
|
||||
set_csr!($(#[$attr])*, $set_field, $e);
|
||||
clear_csr!($(#[$attr])*, $clear_field, $e);
|
||||
}
|
||||
}
|
||||
|
||||
macro_rules! read_composite_csr {
|
||||
($hi:expr, $lo:expr) => {
|
||||
/// Reads the CSR as a 64-bit value
|
||||
#[inline]
|
||||
pub fn read64() -> u64 {
|
||||
match () {
|
||||
#[cfg(riscv32)]
|
||||
() => loop {
|
||||
let hi = $hi;
|
||||
let lo = $lo;
|
||||
if hi == $hi {
|
||||
return ((hi as u64) << 32) | lo as u64;
|
||||
}
|
||||
},
|
||||
|
||||
#[cfg(not(riscv32))]
|
||||
() => $lo as u64,
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
|
@ -1,27 +0,0 @@
|
|||
//! marchid register
|
||||
|
||||
use core::num::NonZeroUsize;
|
||||
|
||||
/// marchid register
|
||||
#[derive(Clone, Copy, Debug)]
|
||||
pub struct Marchid {
|
||||
bits: NonZeroUsize,
|
||||
}
|
||||
|
||||
impl Marchid {
|
||||
/// Returns the contents of the register as raw bits
|
||||
pub fn bits(&self) -> usize {
|
||||
self.bits.get()
|
||||
}
|
||||
}
|
||||
|
||||
read_csr!(0xF11, __read_marchid);
|
||||
|
||||
/// Reads the CSR
|
||||
#[inline]
|
||||
pub fn read() -> Option<Marchid> {
|
||||
let r = unsafe{ _read() };
|
||||
// When marchid is hardwired to zero it means that the marchid
|
||||
// csr isn't implemented.
|
||||
NonZeroUsize::new(r).map(|bits| Marchid { bits })
|
||||
}
|
||||
|
|
@ -1,139 +0,0 @@
|
|||
//! mcause register
|
||||
|
||||
/// mcause register
|
||||
#[derive(Clone, Copy, Debug)]
|
||||
pub struct Mcause {
|
||||
bits: usize,
|
||||
}
|
||||
|
||||
/// Trap Cause
|
||||
#[derive(Copy, Clone, Debug, PartialEq, Eq)]
|
||||
pub enum Trap {
|
||||
Interrupt(Interrupt),
|
||||
Exception(Exception),
|
||||
}
|
||||
|
||||
/// Interrupt
|
||||
#[derive(Copy, Clone, Debug, PartialEq, Eq)]
|
||||
pub enum Interrupt {
|
||||
UserSoft,
|
||||
SupervisorSoft,
|
||||
MachineSoft,
|
||||
UserTimer,
|
||||
SupervisorTimer,
|
||||
MachineTimer,
|
||||
UserExternal,
|
||||
SupervisorExternal,
|
||||
MachineExternal,
|
||||
Unknown,
|
||||
}
|
||||
|
||||
/// Exception
|
||||
#[derive(Copy, Clone, Debug, PartialEq, Eq)]
|
||||
pub enum Exception {
|
||||
InstructionMisaligned,
|
||||
InstructionFault,
|
||||
IllegalInstruction,
|
||||
Breakpoint,
|
||||
LoadMisaligned,
|
||||
LoadFault,
|
||||
StoreMisaligned,
|
||||
StoreFault,
|
||||
UserEnvCall,
|
||||
SupervisorEnvCall,
|
||||
MachineEnvCall,
|
||||
InstructionPageFault,
|
||||
LoadPageFault,
|
||||
StorePageFault,
|
||||
Unknown,
|
||||
}
|
||||
|
||||
impl Interrupt {
|
||||
pub fn from(nr: usize) -> Self {
|
||||
match nr {
|
||||
0 => Interrupt::UserSoft,
|
||||
1 => Interrupt::SupervisorSoft,
|
||||
3 => Interrupt::MachineSoft,
|
||||
4 => Interrupt::UserTimer,
|
||||
5 => Interrupt::SupervisorTimer,
|
||||
7 => Interrupt::MachineTimer,
|
||||
8 => Interrupt::UserExternal,
|
||||
9 => Interrupt::SupervisorExternal,
|
||||
11 => Interrupt::MachineExternal,
|
||||
_ => Interrupt::Unknown,
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
impl Exception {
|
||||
pub fn from(nr: usize) -> Self {
|
||||
match nr {
|
||||
0 => Exception::InstructionMisaligned,
|
||||
1 => Exception::InstructionFault,
|
||||
2 => Exception::IllegalInstruction,
|
||||
3 => Exception::Breakpoint,
|
||||
4 => Exception::LoadMisaligned,
|
||||
5 => Exception::LoadFault,
|
||||
6 => Exception::StoreMisaligned,
|
||||
7 => Exception::StoreFault,
|
||||
8 => Exception::UserEnvCall,
|
||||
9 => Exception::SupervisorEnvCall,
|
||||
11 => Exception::MachineEnvCall,
|
||||
12 => Exception::InstructionPageFault,
|
||||
13 => Exception::LoadPageFault,
|
||||
15 => Exception::StorePageFault,
|
||||
_ => Exception::Unknown,
|
||||
}
|
||||
}
|
||||
}
|
||||
impl Mcause {
|
||||
/// Returns the contents of the register as raw bits
|
||||
#[inline]
|
||||
pub fn bits(&self) -> usize {
|
||||
self.bits
|
||||
}
|
||||
|
||||
/// Returns the code field
|
||||
pub fn code(&self) -> usize {
|
||||
match () {
|
||||
#[cfg(target_pointer_width = "32")]
|
||||
() => self.bits & !(1 << 31),
|
||||
#[cfg(target_pointer_width = "64")]
|
||||
() => self.bits & !(1 << 63),
|
||||
#[cfg(target_pointer_width = "128")]
|
||||
() => self.bits & !(1 << 127),
|
||||
}
|
||||
}
|
||||
|
||||
/// Trap Cause
|
||||
#[inline]
|
||||
pub fn cause(&self) -> Trap {
|
||||
if self.is_interrupt() {
|
||||
Trap::Interrupt(Interrupt::from(self.code()))
|
||||
} else {
|
||||
Trap::Exception(Exception::from(self.code()))
|
||||
}
|
||||
}
|
||||
|
||||
/// Is trap cause an interrupt.
|
||||
#[inline]
|
||||
pub fn is_interrupt(&self) -> bool {
|
||||
match () {
|
||||
#[cfg(target_pointer_width = "32")]
|
||||
() => self.bits & (1 << 31) == 1 << 31,
|
||||
#[cfg(target_pointer_width = "64")]
|
||||
() => self.bits & (1 << 63) == 1 << 63,
|
||||
#[cfg(target_pointer_width = "128")]
|
||||
() => self.bits & (1 << 127) == 1 << 127,
|
||||
}
|
||||
}
|
||||
|
||||
/// Is trap cause an exception.
|
||||
#[inline]
|
||||
pub fn is_exception(&self) -> bool {
|
||||
!self.is_interrupt()
|
||||
}
|
||||
}
|
||||
|
||||
read_csr_as!(Mcause, 0x342, __read_mcause);
|
||||
|
|
@ -1,4 +0,0 @@
|
|||
//! mcycle register
|
||||
|
||||
read_csr_as_usize!(0xB00, __read_mcycle);
|
||||
read_composite_csr!(super::mcycleh::read(), read());
|
||||
|
|
@ -1,3 +0,0 @@
|
|||
//! mcycleh register
|
||||
|
||||
read_csr_as_usize_rv32!(0xB80, __read_mcycleh);
|
||||
|
|
@ -1,4 +0,0 @@
|
|||
//! mepc register
|
||||
|
||||
read_csr_as_usize!(0x341, __read_mepc);
|
||||
write_csr_as_usize!(0x341, __write_mepc);
|
||||
|
|
@ -1,3 +0,0 @@
|
|||
//! mhartid register
|
||||
|
||||
read_csr_as_usize!(0xf14, __read_mhartid);
|
||||
|
|
@ -1,84 +0,0 @@
|
|||
macro_rules! reg {
|
||||
(
|
||||
$addr:expr, $csrl:ident, $csrh:ident, $readf:ident, $writef:ident
|
||||
) => {
|
||||
/// Machine performance-monitoring counter
|
||||
pub mod $csrl {
|
||||
read_csr_as_usize!($addr, $readf);
|
||||
write_csr_as_usize!($addr, $writef);
|
||||
read_composite_csr!(super::$csrh::read(), read());
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
macro_rules! regh {
|
||||
(
|
||||
$addr:expr, $csrh:ident, $readf:ident, $writef:ident
|
||||
) => {
|
||||
/// Upper 32 bits of machine performance-monitoring counter (RV32I only)
|
||||
pub mod $csrh {
|
||||
read_csr_as_usize_rv32!($addr, $readf);
|
||||
write_csr_as_usize_rv32!($addr, $writef);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
reg!(0xB03, mhpmcounter3, mhpmcounter3h, __read_mhpmcounter3, __write_mhpmcounter3);
|
||||
reg!(0xB04, mhpmcounter4, mhpmcounter4h, __read_mhpmcounter4, __write_mhpmcounter4);
|
||||
reg!(0xB05, mhpmcounter5, mhpmcounter5h, __read_mhpmcounter5, __write_mhpmcounter5);
|
||||
reg!(0xB06, mhpmcounter6, mhpmcounter6h, __read_mhpmcounter6, __write_mhpmcounter6);
|
||||
reg!(0xB07, mhpmcounter7, mhpmcounter7h, __read_mhpmcounter7, __write_mhpmcounter7);
|
||||
reg!(0xB08, mhpmcounter8, mhpmcounter8h, __read_mhpmcounter8, __write_mhpmcounter8);
|
||||
reg!(0xB09, mhpmcounter9, mhpmcounter9h, __read_mhpmcounter9, __write_mhpmcounter9);
|
||||
reg!(0xB0A, mhpmcounter10, mhpmcounter10h, __read_mhpmcounter10, __write_mhpmcounter10);
|
||||
reg!(0xB0B, mhpmcounter11, mhpmcounter11h, __read_mhpmcounter11, __write_mhpmcounter11);
|
||||
reg!(0xB0C, mhpmcounter12, mhpmcounter12h, __read_mhpmcounter12, __write_mhpmcounter12);
|
||||
reg!(0xB0D, mhpmcounter13, mhpmcounter13h, __read_mhpmcounter13, __write_mhpmcounter13);
|
||||
reg!(0xB0E, mhpmcounter14, mhpmcounter14h, __read_mhpmcounter14, __write_mhpmcounter14);
|
||||
reg!(0xB0F, mhpmcounter15, mhpmcounter15h, __read_mhpmcounter15, __write_mhpmcounter15);
|
||||
reg!(0xB10, mhpmcounter16, mhpmcounter16h, __read_mhpmcounter16, __write_mhpmcounter16);
|
||||
reg!(0xB11, mhpmcounter17, mhpmcounter17h, __read_mhpmcounter17, __write_mhpmcounter17);
|
||||
reg!(0xB12, mhpmcounter18, mhpmcounter18h, __read_mhpmcounter18, __write_mhpmcounter18);
|
||||
reg!(0xB13, mhpmcounter19, mhpmcounter19h, __read_mhpmcounter19, __write_mhpmcounter19);
|
||||
reg!(0xB14, mhpmcounter20, mhpmcounter20h, __read_mhpmcounter20, __write_mhpmcounter20);
|
||||
reg!(0xB15, mhpmcounter21, mhpmcounter21h, __read_mhpmcounter21, __write_mhpmcounter21);
|
||||
reg!(0xB16, mhpmcounter22, mhpmcounter22h, __read_mhpmcounter22, __write_mhpmcounter22);
|
||||
reg!(0xB17, mhpmcounter23, mhpmcounter23h, __read_mhpmcounter23, __write_mhpmcounter23);
|
||||
reg!(0xB18, mhpmcounter24, mhpmcounter24h, __read_mhpmcounter24, __write_mhpmcounter24);
|
||||
reg!(0xB19, mhpmcounter25, mhpmcounter25h, __read_mhpmcounter25, __write_mhpmcounter25);
|
||||
reg!(0xB1A, mhpmcounter26, mhpmcounter26h, __read_mhpmcounter26, __write_mhpmcounter26);
|
||||
reg!(0xB1B, mhpmcounter27, mhpmcounter27h, __read_mhpmcounter27, __write_mhpmcounter27);
|
||||
reg!(0xB1C, mhpmcounter28, mhpmcounter28h, __read_mhpmcounter28, __write_mhpmcounter28);
|
||||
reg!(0xB1D, mhpmcounter29, mhpmcounter29h, __read_mhpmcounter29, __write_mhpmcounter29);
|
||||
reg!(0xB1E, mhpmcounter30, mhpmcounter30h, __read_mhpmcounter30, __write_mhpmcounter30);
|
||||
reg!(0xB1F, mhpmcounter31, mhpmcounter31h, __read_mhpmcounter31, __write_mhpmcounter31);
|
||||
|
||||
regh!(0xB83, mhpmcounter3h, __read_mhpmcounter3h, __write_mhpmcounter3h);
|
||||
regh!(0xB84, mhpmcounter4h, __read_mhpmcounter4h, __write_mhpmcounter4h);
|
||||
regh!(0xB85, mhpmcounter5h, __read_mhpmcounter5h, __write_mhpmcounter5h);
|
||||
regh!(0xB86, mhpmcounter6h, __read_mhpmcounter6h, __write_mhpmcounter6h);
|
||||
regh!(0xB87, mhpmcounter7h, __read_mhpmcounter7h, __write_mhpmcounter7h);
|
||||
regh!(0xB88, mhpmcounter8h, __read_mhpmcounter8h, __write_mhpmcounter8h);
|
||||
regh!(0xB89, mhpmcounter9h, __read_mhpmcounter9h, __write_mhpmcounter9h);
|
||||
regh!(0xB8A, mhpmcounter10h, __read_mhpmcounter10h, __write_mhpmcounter10h);
|
||||
regh!(0xB8B, mhpmcounter11h, __read_mhpmcounter11h, __write_mhpmcounter11h);
|
||||
regh!(0xB8C, mhpmcounter12h, __read_mhpmcounter12h, __write_mhpmcounter12h);
|
||||
regh!(0xB8D, mhpmcounter13h, __read_mhpmcounter13h, __write_mhpmcounter13h);
|
||||
regh!(0xB8E, mhpmcounter14h, __read_mhpmcounter14h, __write_mhpmcounter14h);
|
||||
regh!(0xB8F, mhpmcounter15h, __read_mhpmcounter15h, __write_mhpmcounter15h);
|
||||
regh!(0xB90, mhpmcounter16h, __read_mhpmcounter16h, __write_mhpmcounter16h);
|
||||
regh!(0xB91, mhpmcounter17h, __read_mhpmcounter17h, __write_mhpmcounter17h);
|
||||
regh!(0xB92, mhpmcounter18h, __read_mhpmcounter18h, __write_mhpmcounter18h);
|
||||
regh!(0xB93, mhpmcounter19h, __read_mhpmcounter19h, __write_mhpmcounter19h);
|
||||
regh!(0xB94, mhpmcounter20h, __read_mhpmcounter20h, __write_mhpmcounter20h);
|
||||
regh!(0xB95, mhpmcounter21h, __read_mhpmcounter21h, __write_mhpmcounter21h);
|
||||
regh!(0xB96, mhpmcounter22h, __read_mhpmcounter22h, __write_mhpmcounter22h);
|
||||
regh!(0xB97, mhpmcounter23h, __read_mhpmcounter23h, __write_mhpmcounter23h);
|
||||
regh!(0xB98, mhpmcounter24h, __read_mhpmcounter24h, __write_mhpmcounter24h);
|
||||
regh!(0xB99, mhpmcounter25h, __read_mhpmcounter25h, __write_mhpmcounter25h);
|
||||
regh!(0xB9A, mhpmcounter26h, __read_mhpmcounter26h, __write_mhpmcounter26h);
|
||||
regh!(0xB9B, mhpmcounter27h, __read_mhpmcounter27h, __write_mhpmcounter27h);
|
||||
regh!(0xB9C, mhpmcounter28h, __read_mhpmcounter28h, __write_mhpmcounter28h);
|
||||
regh!(0xB9D, mhpmcounter29h, __read_mhpmcounter29h, __write_mhpmcounter29h);
|
||||
regh!(0xB9E, mhpmcounter30h, __read_mhpmcounter30h, __write_mhpmcounter30h);
|
||||
regh!(0xB9F, mhpmcounter31h, __read_mhpmcounter31h, __write_mhpmcounter31h);
|
||||
|
|
@ -1,41 +0,0 @@
|
|||
macro_rules! reg {
|
||||
(
|
||||
$addr:expr, $csr:ident, $readf:ident, $writef:ident
|
||||
) => {
|
||||
/// Machine performance-monitoring event selector
|
||||
pub mod $csr {
|
||||
read_csr_as_usize!($addr, $readf);
|
||||
write_csr_as_usize!($addr, $writef);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
reg!(0x323, mhpmevent3, __read_mhpmevent3, __write_mhpmevent3);
|
||||
reg!(0x324, mhpmevent4, __read_mhpmevent4, __write_mhpmevent4);
|
||||
reg!(0x325, mhpmevent5, __read_mhpmevent5, __write_mhpmevent5);
|
||||
reg!(0x326, mhpmevent6, __read_mhpmevent6, __write_mhpmevent6);
|
||||
reg!(0x327, mhpmevent7, __read_mhpmevent7, __write_mhpmevent7);
|
||||
reg!(0x328, mhpmevent8, __read_mhpmevent8, __write_mhpmevent8);
|
||||
reg!(0x329, mhpmevent9, __read_mhpmevent9, __write_mhpmevent9);
|
||||
reg!(0x32A, mhpmevent10, __read_mhpmevent10, __write_mhpmevent10);
|
||||
reg!(0x32B, mhpmevent11, __read_mhpmevent11, __write_mhpmevent11);
|
||||
reg!(0x32C, mhpmevent12, __read_mhpmevent12, __write_mhpmevent12);
|
||||
reg!(0x32D, mhpmevent13, __read_mhpmevent13, __write_mhpmevent13);
|
||||
reg!(0x32E, mhpmevent14, __read_mhpmevent14, __write_mhpmevent14);
|
||||
reg!(0x32F, mhpmevent15, __read_mhpmevent15, __write_mhpmevent15);
|
||||
reg!(0x330, mhpmevent16, __read_mhpmevent16, __write_mhpmevent16);
|
||||
reg!(0x331, mhpmevent17, __read_mhpmevent17, __write_mhpmevent17);
|
||||
reg!(0x332, mhpmevent18, __read_mhpmevent18, __write_mhpmevent18);
|
||||
reg!(0x333, mhpmevent19, __read_mhpmevent19, __write_mhpmevent19);
|
||||
reg!(0x334, mhpmevent20, __read_mhpmevent20, __write_mhpmevent20);
|
||||
reg!(0x335, mhpmevent21, __read_mhpmevent21, __write_mhpmevent21);
|
||||
reg!(0x336, mhpmevent22, __read_mhpmevent22, __write_mhpmevent22);
|
||||
reg!(0x337, mhpmevent23, __read_mhpmevent23, __write_mhpmevent23);
|
||||
reg!(0x338, mhpmevent24, __read_mhpmevent24, __write_mhpmevent24);
|
||||
reg!(0x339, mhpmevent25, __read_mhpmevent25, __write_mhpmevent25);
|
||||
reg!(0x33A, mhpmevent26, __read_mhpmevent26, __write_mhpmevent26);
|
||||
reg!(0x33B, mhpmevent27, __read_mhpmevent27, __write_mhpmevent27);
|
||||
reg!(0x33C, mhpmevent28, __read_mhpmevent28, __write_mhpmevent28);
|
||||
reg!(0x33D, mhpmevent29, __read_mhpmevent29, __write_mhpmevent29);
|
||||
reg!(0x33E, mhpmevent30, __read_mhpmevent30, __write_mhpmevent30);
|
||||
reg!(0x33F, mhpmevent31, __read_mhpmevent31, __write_mhpmevent31);
|
||||
|
|
@ -1,103 +0,0 @@
|
|||
//! mie register
|
||||
|
||||
use bit_field::BitField;
|
||||
|
||||
/// mie register
|
||||
#[derive(Clone, Copy, Debug)]
|
||||
pub struct Mie {
|
||||
bits: usize,
|
||||
}
|
||||
|
||||
impl Mie {
|
||||
/// Returns the contents of the register as raw bits
|
||||
#[inline]
|
||||
pub fn bits(&self) -> usize {
|
||||
self.bits
|
||||
}
|
||||
|
||||
/// User Software Interrupt Enable
|
||||
#[inline]
|
||||
pub fn usoft(&self) -> bool {
|
||||
self.bits.get_bit(0)
|
||||
}
|
||||
|
||||
/// Supervisor Software Interrupt Enable
|
||||
#[inline]
|
||||
pub fn ssoft(&self) -> bool {
|
||||
self.bits.get_bit(1)
|
||||
}
|
||||
|
||||
/// Machine Software Interrupt Enable
|
||||
#[inline]
|
||||
pub fn msoft(&self) -> bool {
|
||||
self.bits.get_bit(3)
|
||||
}
|
||||
|
||||
/// User Timer Interrupt Enable
|
||||
#[inline]
|
||||
pub fn utimer(&self) -> bool {
|
||||
self.bits.get_bit(4)
|
||||
}
|
||||
|
||||
/// Supervisor Timer Interrupt Enable
|
||||
#[inline]
|
||||
pub fn stimer(&self) -> bool {
|
||||
self.bits.get_bit(5)
|
||||
}
|
||||
|
||||
/// Machine Timer Interrupt Enable
|
||||
#[inline]
|
||||
pub fn mtimer(&self) -> bool {
|
||||
self.bits.get_bit(7)
|
||||
}
|
||||
|
||||
/// User External Interrupt Enable
|
||||
#[inline]
|
||||
pub fn uext(&self) -> bool {
|
||||
self.bits.get_bit(8)
|
||||
}
|
||||
|
||||
/// Supervisor External Interrupt Enable
|
||||
#[inline]
|
||||
pub fn sext(&self) -> bool {
|
||||
self.bits.get_bit(9)
|
||||
}
|
||||
|
||||
/// Machine External Interrupt Enable
|
||||
#[inline]
|
||||
pub fn mext(&self) -> bool {
|
||||
self.bits.get_bit(11)
|
||||
}
|
||||
}
|
||||
|
||||
read_csr_as!(Mie, 0x304, __read_mie);
|
||||
set!(0x304, __set_mie);
|
||||
clear!(0x304, __clear_mie);
|
||||
|
||||
set_clear_csr!(
|
||||
/// User Software Interrupt Enable
|
||||
, set_usoft, clear_usoft, 1 << 0);
|
||||
set_clear_csr!(
|
||||
/// Supervisor Software Interrupt Enable
|
||||
, set_ssoft, clear_ssoft, 1 << 1);
|
||||
set_clear_csr!(
|
||||
/// Machine Software Interrupt Enable
|
||||
, set_msoft, clear_msoft, 1 << 3);
|
||||
set_clear_csr!(
|
||||
/// User Timer Interrupt Enable
|
||||
, set_utimer, clear_utimer, 1 << 4);
|
||||
set_clear_csr!(
|
||||
/// Supervisor Timer Interrupt Enable
|
||||
, set_stimer, clear_stimer, 1 << 5);
|
||||
set_clear_csr!(
|
||||
/// Machine Timer Interrupt Enable
|
||||
, set_mtimer, clear_mtimer, 1 << 7);
|
||||
set_clear_csr!(
|
||||
/// User External Interrupt Enable
|
||||
, set_uext, clear_uext, 1 << 8);
|
||||
set_clear_csr!(
|
||||
/// Supervisor External Interrupt Enable
|
||||
, set_sext, clear_sext, 1 << 9);
|
||||
set_clear_csr!(
|
||||
/// Machine External Interrupt Enable
|
||||
, set_mext, clear_mext, 1 << 11);
|
||||
|
|
@ -1,27 +0,0 @@
|
|||
//! mimpid register
|
||||
|
||||
use core::num::NonZeroUsize;
|
||||
|
||||
/// mimpid register
|
||||
#[derive(Clone, Copy, Debug)]
|
||||
pub struct Mimpid {
|
||||
bits: NonZeroUsize,
|
||||
}
|
||||
|
||||
impl Mimpid {
|
||||
/// Returns the contents of the register as raw bits
|
||||
pub fn bits(&self) -> usize {
|
||||
self.bits.get()
|
||||
}
|
||||
}
|
||||
|
||||
read_csr!(0xF11, __read_mimpid);
|
||||
|
||||
/// Reads the CSR
|
||||
#[inline]
|
||||
pub fn read() -> Option<Mimpid> {
|
||||
let r = unsafe{ _read() };
|
||||
// When mimpid is hardwired to zero it means that the mimpid
|
||||
// csr isn't implemented.
|
||||
NonZeroUsize::new(r).map(|bits| Mimpid { bits })
|
||||
}
|
||||
|
|
@ -1,4 +0,0 @@
|
|||
//! minstret register
|
||||
|
||||
read_csr_as_usize!(0xB02, __read_minstret);
|
||||
read_composite_csr!(super::minstreth::read(), read());
|
||||
|
|
@ -1,3 +0,0 @@
|
|||
//! minstreth register
|
||||
|
||||
read_csr_as_usize_rv32!(0xB82, __read_minstreth);
|
||||
|
|
@ -1,73 +0,0 @@
|
|||
//! mip register
|
||||
|
||||
use bit_field::BitField;
|
||||
|
||||
/// mip register
|
||||
#[derive(Clone, Copy, Debug)]
|
||||
pub struct Mip {
|
||||
bits: usize,
|
||||
}
|
||||
|
||||
impl Mip {
|
||||
/// Returns the contents of the register as raw bits
|
||||
#[inline]
|
||||
pub fn bits(&self) -> usize {
|
||||
self.bits
|
||||
}
|
||||
|
||||
/// User Software Interrupt Pending
|
||||
#[inline]
|
||||
pub fn usoft(&self) -> bool {
|
||||
self.bits.get_bit(0)
|
||||
}
|
||||
|
||||
/// Supervisor Software Interrupt Pending
|
||||
#[inline]
|
||||
pub fn ssoft(&self) -> bool {
|
||||
self.bits.get_bit(1)
|
||||
}
|
||||
|
||||
/// Machine Software Interrupt Pending
|
||||
#[inline]
|
||||
pub fn msoft(&self) -> bool {
|
||||
self.bits.get_bit(3)
|
||||
}
|
||||
|
||||
/// User Timer Interrupt Pending
|
||||
#[inline]
|
||||
pub fn utimer(&self) -> bool {
|
||||
self.bits.get_bit(4)
|
||||
}
|
||||
|
||||
/// Supervisor Timer Interrupt Pending
|
||||
#[inline]
|
||||
pub fn stimer(&self) -> bool {
|
||||
self.bits.get_bit(5)
|
||||
}
|
||||
|
||||
/// Machine Timer Interrupt Pending
|
||||
#[inline]
|
||||
pub fn mtimer(&self) -> bool {
|
||||
self.bits.get_bit(7)
|
||||
}
|
||||
|
||||
/// User External Interrupt Pending
|
||||
#[inline]
|
||||
pub fn uext(&self) -> bool {
|
||||
self.bits.get_bit(8)
|
||||
}
|
||||
|
||||
/// Supervisor External Interrupt Pending
|
||||
#[inline]
|
||||
pub fn sext(&self) -> bool {
|
||||
self.bits.get_bit(9)
|
||||
}
|
||||
|
||||
/// Machine External Interrupt Pending
|
||||
#[inline]
|
||||
pub fn mext(&self) -> bool {
|
||||
self.bits.get_bit(11)
|
||||
}
|
||||
}
|
||||
|
||||
read_csr_as!(Mip, 0x344, __read_mip);
|
||||
|
|
@ -1,60 +0,0 @@
|
|||
//! misa register
|
||||
|
||||
use core::num::NonZeroUsize;
|
||||
|
||||
/// misa register
|
||||
#[derive(Clone, Copy, Debug)]
|
||||
pub struct Misa {
|
||||
bits: NonZeroUsize,
|
||||
}
|
||||
|
||||
/// Machine XLEN
|
||||
#[derive(Copy, Clone, Debug, Eq, PartialEq)]
|
||||
pub enum MXL {
|
||||
XLEN32,
|
||||
XLEN64,
|
||||
XLEN128,
|
||||
}
|
||||
|
||||
impl Misa {
|
||||
/// Returns the contents of the register as raw bits
|
||||
pub fn bits(&self) -> usize {
|
||||
self.bits.get()
|
||||
}
|
||||
|
||||
/// Returns the machine xlen.
|
||||
pub fn mxl(&self) -> MXL {
|
||||
let value = match () {
|
||||
#[cfg(target_pointer_width = "32")]
|
||||
() => (self.bits() >> 30) as u8,
|
||||
#[cfg(target_pointer_width = "64")]
|
||||
() => (self.bits() >> 62) as u8,
|
||||
};
|
||||
match value {
|
||||
1 => MXL::XLEN32,
|
||||
2 => MXL::XLEN64,
|
||||
3 => MXL::XLEN128,
|
||||
_ => unreachable!(),
|
||||
}
|
||||
}
|
||||
|
||||
/// Returns true when the atomic extension is implemented.
|
||||
pub fn has_extension(&self, extension: char) -> bool {
|
||||
let bit = extension as u8 - 65;
|
||||
if bit > 25 {
|
||||
return false;
|
||||
}
|
||||
self.bits() & (1 << bit) == (1 << bit)
|
||||
}
|
||||
}
|
||||
|
||||
read_csr!(0x301, __read_misa);
|
||||
|
||||
/// Reads the CSR
|
||||
#[inline]
|
||||
pub fn read() -> Option<Misa> {
|
||||
let r = unsafe{ _read() };
|
||||
// When misa is hardwired to zero it means that the misa csr
|
||||
// isn't implemented.
|
||||
NonZeroUsize::new(r).map(|bits| Misa { bits })
|
||||
}
|
||||
|
|
@ -1,116 +0,0 @@
|
|||
//! RISC-V CSR's
|
||||
//!
|
||||
//! The following registers are not available on 64-bit implementations.
|
||||
//!
|
||||
//! - cycleh
|
||||
//! - timeh
|
||||
//! - instreth
|
||||
//! - hpmcounter[3-31]h
|
||||
//! - mcycleh
|
||||
//! - minstreth
|
||||
//! - mhpmcounter[3-31]h
|
||||
|
||||
#[macro_use]
|
||||
mod macros;
|
||||
|
||||
// User Trap Setup
|
||||
pub mod ustatus;
|
||||
pub mod uie;
|
||||
pub mod utvec;
|
||||
|
||||
// User Trap Handling
|
||||
pub mod uscratch;
|
||||
pub mod uepc;
|
||||
pub mod ucause;
|
||||
pub mod utval;
|
||||
pub mod uip;
|
||||
|
||||
// User Floating-Point CSRs
|
||||
// TODO: frm, fflags
|
||||
pub mod fcsr;
|
||||
|
||||
|
||||
// User Counter/Timers
|
||||
// TODO: cycle[h], instret[h]
|
||||
pub mod time;
|
||||
mod hpmcounterx;
|
||||
pub use self::hpmcounterx::*;
|
||||
pub mod timeh;
|
||||
|
||||
|
||||
// Supervisor Trap Setup
|
||||
// TODO: sedeleg, sideleg
|
||||
pub mod sstatus;
|
||||
pub mod sie;
|
||||
pub mod stvec;
|
||||
// TODO: scounteren
|
||||
|
||||
|
||||
// Supervisor Trap Handling
|
||||
pub mod sscratch;
|
||||
pub mod sepc;
|
||||
pub mod scause;
|
||||
pub mod stval;
|
||||
pub mod sip;
|
||||
|
||||
|
||||
// Supervisor Protection and Translation
|
||||
pub mod satp;
|
||||
|
||||
|
||||
// Machine Information Registers
|
||||
pub mod mvendorid;
|
||||
pub mod marchid;
|
||||
pub mod mimpid;
|
||||
pub mod mhartid;
|
||||
|
||||
|
||||
// Machine Trap Setup
|
||||
pub mod mstatus;
|
||||
pub mod misa;
|
||||
// TODO: medeleg, mideleg
|
||||
pub mod mie;
|
||||
pub mod mtvec;
|
||||
// TODO: mcounteren
|
||||
|
||||
|
||||
// Machine Trap Handling
|
||||
pub mod mscratch;
|
||||
pub mod mepc;
|
||||
pub mod mcause;
|
||||
pub mod mtval;
|
||||
pub mod mip;
|
||||
|
||||
|
||||
// Machine Protection and Translation
|
||||
mod pmpcfgx;
|
||||
pub use self::pmpcfgx::*;
|
||||
mod pmpaddrx;
|
||||
pub use self::pmpaddrx::*;
|
||||
|
||||
|
||||
// Machine Counter/Timers
|
||||
pub mod mcycle;
|
||||
pub mod minstret;
|
||||
mod mhpmcounterx;
|
||||
pub use self::mhpmcounterx::*;
|
||||
pub mod mcycleh;
|
||||
pub mod minstreth;
|
||||
|
||||
|
||||
// Machine Counter Setup
|
||||
mod mhpmeventx;
|
||||
pub use self::mhpmeventx::*;
|
||||
|
||||
|
||||
// TODO: Debug/Trace Registers (shared with Debug Mode)
|
||||
|
||||
|
||||
// TODO: Debug Mode Registers
|
||||
|
||||
// VexRiscv registers
|
||||
pub mod vmim;
|
||||
pub mod vmip;
|
||||
pub mod vsim;
|
||||
pub mod vsip;
|
||||
pub mod vdci;
|
||||
|
|
@ -1,4 +0,0 @@
|
|||
//! mscratch register
|
||||
|
||||
read_csr_as_usize!(0x340, __read_mscratch);
|
||||
write_csr_as_usize!(0x340, __write_mscratch);
|
||||
|
|
@ -1,200 +0,0 @@
|
|||
//! mstatus register
|
||||
// TODO: Virtualization, Memory Privilege and Extension Context Fields
|
||||
|
||||
use bit_field::BitField;
|
||||
use core::mem::size_of;
|
||||
|
||||
/// mstatus register
|
||||
#[derive(Clone, Copy, Debug)]
|
||||
pub struct Mstatus {
|
||||
bits: usize,
|
||||
}
|
||||
|
||||
/// Additional extension state
|
||||
#[derive(Copy, Clone, Debug, Eq, PartialEq)]
|
||||
pub enum XS {
|
||||
/// All off
|
||||
AllOff = 0,
|
||||
|
||||
/// None dirty or clean, some on
|
||||
NoneDirtyOrClean = 1,
|
||||
|
||||
/// None dirty, some clean
|
||||
NoneDirtySomeClean = 2,
|
||||
|
||||
/// Some dirty
|
||||
SomeDirty = 3,
|
||||
}
|
||||
|
||||
/// Floating-point extension state
|
||||
#[derive(Copy, Clone, Debug, Eq, PartialEq)]
|
||||
pub enum FS {
|
||||
Off = 0,
|
||||
Initial = 1,
|
||||
Clean = 2,
|
||||
Dirty = 3,
|
||||
}
|
||||
|
||||
/// Machine Previous Privilege Mode
|
||||
#[derive(Copy, Clone, Debug, Eq, PartialEq)]
|
||||
pub enum MPP {
|
||||
Machine = 3,
|
||||
Supervisor = 1,
|
||||
User = 0,
|
||||
}
|
||||
|
||||
/// Supervisor Previous Privilege Mode
|
||||
#[derive(Copy, Clone, Debug, Eq, PartialEq)]
|
||||
pub enum SPP {
|
||||
Supervisor = 1,
|
||||
User = 0,
|
||||
}
|
||||
|
||||
impl Mstatus {
|
||||
/// User Interrupt Enable
|
||||
#[inline]
|
||||
pub fn uie(&self) -> bool {
|
||||
self.bits.get_bit(0)
|
||||
}
|
||||
|
||||
/// Supervisor Interrupt Enable
|
||||
#[inline]
|
||||
pub fn sie(&self) -> bool {
|
||||
self.bits.get_bit(1)
|
||||
}
|
||||
|
||||
/// Machine Interrupt Enable
|
||||
#[inline]
|
||||
pub fn mie(&self) -> bool {
|
||||
self.bits.get_bit(3)
|
||||
}
|
||||
|
||||
/// User Previous Interrupt Enable
|
||||
#[inline]
|
||||
pub fn upie(&self) -> bool {
|
||||
self.bits.get_bit(4)
|
||||
}
|
||||
|
||||
/// Supervisor Previous Interrupt Enable
|
||||
#[inline]
|
||||
pub fn spie(&self) -> bool {
|
||||
self.bits.get_bit(5)
|
||||
}
|
||||
|
||||
/// Machine Previous Interrupt Enable
|
||||
#[inline]
|
||||
pub fn mpie(&self) -> bool {
|
||||
self.bits.get_bit(7)
|
||||
}
|
||||
|
||||
/// Supervisor Previous Privilege Mode
|
||||
#[inline]
|
||||
pub fn spp(&self) -> SPP {
|
||||
match self.bits.get_bit(8) {
|
||||
true => SPP::Supervisor,
|
||||
false => SPP::User,
|
||||
}
|
||||
}
|
||||
|
||||
/// Machine Previous Privilege Mode
|
||||
#[inline]
|
||||
pub fn mpp(&self) -> MPP {
|
||||
match self.bits.get_bits(11..13) {
|
||||
0b00 => MPP::User,
|
||||
0b01 => MPP::Supervisor,
|
||||
0b11 => MPP::Machine,
|
||||
_ => unreachable!(),
|
||||
}
|
||||
}
|
||||
|
||||
/// Floating-point extension state
|
||||
///
|
||||
/// Encodes the status of the floating-point unit,
|
||||
/// including the CSR `fcsr` and floating-point data registers `f0–f31`.
|
||||
#[inline]
|
||||
pub fn fs(&self) -> FS {
|
||||
match self.bits.get_bits(13..15) {
|
||||
0b00 => FS::Off,
|
||||
0b01 => FS::Initial,
|
||||
0b10 => FS::Clean,
|
||||
0b11 => FS::Dirty,
|
||||
_ => unreachable!(),
|
||||
}
|
||||
}
|
||||
|
||||
/// Additional extension state
|
||||
///
|
||||
/// Encodes the status of additional user-mode extensions and associated state.
|
||||
#[inline]
|
||||
pub fn xs(&self) -> XS {
|
||||
match self.bits.get_bits(15..17) {
|
||||
0b00 => XS::AllOff,
|
||||
0b01 => XS::NoneDirtyOrClean,
|
||||
0b10 => XS::NoneDirtySomeClean,
|
||||
0b11 => XS::SomeDirty,
|
||||
_ => unreachable!(),
|
||||
}
|
||||
}
|
||||
|
||||
/// Whether either the FS field or XS field
|
||||
/// signals the presence of some dirty state
|
||||
#[inline]
|
||||
pub fn sd(&self) -> bool {
|
||||
self.bits.get_bit(size_of::<usize>() * 8 - 1)
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
read_csr_as!(Mstatus, 0x300, __read_mstatus);
|
||||
write_csr!(0x300, __write_mstatus);
|
||||
set!(0x300, __set_mstatus);
|
||||
clear!(0x300, __clear_mstatus);
|
||||
|
||||
set_clear_csr!(
|
||||
/// User Interrupt Enable
|
||||
, set_uie, clear_uie, 1 << 0);
|
||||
|
||||
set_clear_csr!(
|
||||
/// Supervisor Interrupt Enable
|
||||
, set_sie, clear_sie, 1 << 1);
|
||||
|
||||
set_clear_csr!(
|
||||
/// Machine Interrupt Enable
|
||||
, set_mie, clear_mie, 1 << 3);
|
||||
|
||||
set_csr!(
|
||||
/// User Previous Interrupt Enable
|
||||
, set_upie, 1 << 4);
|
||||
|
||||
set_csr!(
|
||||
/// Supervisor Previous Interrupt Enable
|
||||
, set_spie, 1 << 5);
|
||||
|
||||
set_csr!(
|
||||
/// Machine Previous Interrupt Enable
|
||||
, set_mpie, 1 << 7);
|
||||
|
||||
/// Supervisor Previous Privilege Mode
|
||||
#[inline]
|
||||
pub unsafe fn set_spp(spp: SPP) {
|
||||
match spp {
|
||||
SPP::Supervisor => _set(1 << 8),
|
||||
SPP::User => _clear(1 << 8),
|
||||
}
|
||||
}
|
||||
|
||||
/// Machine Previous Privilege Mode
|
||||
#[inline]
|
||||
pub unsafe fn set_mpp(mpp: MPP) {
|
||||
let mut value = _read();
|
||||
value.set_bits(11..13, mpp as usize);
|
||||
_write(value);
|
||||
}
|
||||
|
||||
/// Floating-point extension state
|
||||
#[inline]
|
||||
pub unsafe fn set_fs(fs: FS) {
|
||||
let mut value = _read();
|
||||
value.set_bits(13..15, fs as usize);
|
||||
_write(value);
|
||||
}
|
||||
|
|
@ -1,3 +0,0 @@
|
|||
//! mtval register
|
||||
|
||||
read_csr_as_usize!(0x343, __read_mtval);
|
||||
|
|
@ -1,47 +0,0 @@
|
|||
//! mtvec register
|
||||
|
||||
/// mtvec register
|
||||
#[derive(Clone, Copy, Debug)]
|
||||
pub struct Mtvec {
|
||||
bits: usize,
|
||||
}
|
||||
|
||||
/// Trap mode
|
||||
#[derive(Copy, Clone, Debug, Eq, PartialEq)]
|
||||
pub enum TrapMode {
|
||||
Direct = 0,
|
||||
Vectored = 1,
|
||||
}
|
||||
|
||||
impl Mtvec {
|
||||
/// Returns the contents of the register as raw bits
|
||||
pub fn bits(&self) -> usize {
|
||||
self.bits
|
||||
}
|
||||
|
||||
/// Returns the trap-vector base-address
|
||||
pub fn address(&self) -> usize {
|
||||
self.bits - (self.bits & 0b11)
|
||||
}
|
||||
|
||||
/// Returns the trap-vector mode
|
||||
pub fn trap_mode(&self) -> TrapMode {
|
||||
let mode = self.bits & 0b11;
|
||||
match mode {
|
||||
0 => TrapMode::Direct,
|
||||
1 => TrapMode::Vectored,
|
||||
_ => unimplemented!()
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
read_csr_as!(Mtvec, 0x305, __read_mtvec);
|
||||
|
||||
write_csr!(0x305, __write_mtvec);
|
||||
|
||||
/// Writes the CSR
|
||||
#[inline]
|
||||
pub unsafe fn write(addr: usize, mode: TrapMode) {
|
||||
let bits = addr + mode as usize;
|
||||
_write(bits);
|
||||
}
|
||||
|
|
@ -1,32 +0,0 @@
|
|||
//! mvendorid register
|
||||
|
||||
use core::num::NonZeroUsize;
|
||||
|
||||
/// mvendorid register
|
||||
#[derive(Clone, Copy, Debug)]
|
||||
pub struct Mvendorid {
|
||||
bits: NonZeroUsize,
|
||||
}
|
||||
|
||||
impl Mvendorid {
|
||||
/// Returns the contents of the register as raw bits
|
||||
pub fn bits(&self) -> usize {
|
||||
self.bits.get()
|
||||
}
|
||||
|
||||
/// Returns the JEDEC manufacturer ID
|
||||
pub fn jedec_manufacturer(&self) -> usize {
|
||||
self.bits() >> 7
|
||||
}
|
||||
}
|
||||
|
||||
read_csr!(0xF11, __read_mvendorid);
|
||||
|
||||
/// Reads the CSR
|
||||
#[inline]
|
||||
pub fn read() -> Option<Mvendorid> {
|
||||
let r = unsafe{ _read() };
|
||||
// When mvendorid is hardwired to zero it means that the mvendorid
|
||||
// csr isn't implemented.
|
||||
NonZeroUsize::new(r).map(|bits| Mvendorid { bits })
|
||||
}
|
||||
|
|
@ -1,28 +0,0 @@
|
|||
macro_rules! reg {
|
||||
(
|
||||
$addr:expr, $csr:ident, $readf:ident, $writef:ident
|
||||
) => {
|
||||
/// Physical memory protection address register
|
||||
pub mod $csr {
|
||||
read_csr_as_usize!($addr, $readf);
|
||||
write_csr_as_usize!($addr, $writef);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
reg!(0x3B0, pmpaddr0, __read_pmpaddr0, __write_pmpaddr0);
|
||||
reg!(0x3B1, pmpaddr1, __read_pmpaddr1, __write_pmpaddr1);
|
||||
reg!(0x3B2, pmpaddr2, __read_pmpaddr2, __write_pmpaddr2);
|
||||
reg!(0x3B3, pmpaddr3, __read_pmpaddr3, __write_pmpaddr3);
|
||||
reg!(0x3B4, pmpaddr4, __read_pmpaddr4, __write_pmpaddr4);
|
||||
reg!(0x3B5, pmpaddr5, __read_pmpaddr5, __write_pmpaddr5);
|
||||
reg!(0x3B6, pmpaddr6, __read_pmpaddr6, __write_pmpaddr6);
|
||||
reg!(0x3B7, pmpaddr7, __read_pmpaddr7, __write_pmpaddr7);
|
||||
reg!(0x3B8, pmpaddr8, __read_pmpaddr8, __write_pmpaddr8);
|
||||
reg!(0x3B9, pmpaddr9, __read_pmpaddr9, __write_pmpaddr9);
|
||||
reg!(0x3BA, pmpaddr10, __read_pmpaddr10, __write_pmpaddr10);
|
||||
reg!(0x3BB, pmpaddr11, __read_pmpaddr11, __write_pmpaddr11);
|
||||
reg!(0x3BC, pmpaddr12, __read_pmpaddr12, __write_pmpaddr12);
|
||||
reg!(0x3BD, pmpaddr13, __read_pmpaddr13, __write_pmpaddr13);
|
||||
reg!(0x3BE, pmpaddr14, __read_pmpaddr14, __write_pmpaddr14);
|
||||
reg!(0x3BF, pmpaddr15, __read_pmpaddr15, __write_pmpaddr15);
|
||||
|
|
@ -1,23 +0,0 @@
|
|||
/// Physical memory protection configuration
|
||||
pub mod pmpcfg0 {
|
||||
read_csr_as_usize!(0x3A0, __read_pmpcfg0);
|
||||
write_csr_as_usize!(0x3A0, __write_pmpcfg0);
|
||||
}
|
||||
|
||||
/// Physical memory protection configuration, RV32 only
|
||||
pub mod pmpcfg1 {
|
||||
read_csr_as_usize_rv32!(0x3A1, __read_pmpcfg1);
|
||||
write_csr_as_usize_rv32!(0x3A1, __write_pmpcfg1);
|
||||
}
|
||||
|
||||
/// Physical memory protection configuration
|
||||
pub mod pmpcfg2 {
|
||||
read_csr_as_usize!(0x3A2, __read_pmpcfg2);
|
||||
write_csr_as_usize!(0x3A2, __write_pmpcfg2);
|
||||
}
|
||||
|
||||
/// Physical memory protection configuration, RV32 only
|
||||
pub mod pmpcfg3 {
|
||||
read_csr_as_usize_rv32!(0x3A3, __read_pmpcfg3);
|
||||
write_csr_as_usize_rv32!(0x3A3, __write_pmpcfg3);
|
||||
}
|
||||
|
|
@ -1,110 +0,0 @@
|
|||
//! satp register
|
||||
|
||||
#[cfg(riscv)]
|
||||
use bit_field::BitField;
|
||||
|
||||
/// satp register
|
||||
#[derive(Clone, Copy, Debug)]
|
||||
pub struct Satp {
|
||||
bits: usize,
|
||||
}
|
||||
|
||||
impl Satp {
|
||||
/// Returns the contents of the register as raw bits
|
||||
#[inline]
|
||||
pub fn bits(&self) -> usize {
|
||||
self.bits
|
||||
}
|
||||
|
||||
/// Current address-translation scheme
|
||||
#[inline]
|
||||
#[cfg(riscv32)]
|
||||
pub fn mode(&self) -> Mode {
|
||||
match self.bits.get_bit(31) {
|
||||
false => Mode::Bare,
|
||||
true => Mode::Sv32,
|
||||
}
|
||||
}
|
||||
|
||||
/// Current address-translation scheme
|
||||
#[inline]
|
||||
#[cfg(riscv64)]
|
||||
pub fn mode(&self) -> Mode {
|
||||
match self.bits.get_bits(60..64) {
|
||||
0 => Mode::Bare,
|
||||
8 => Mode::Sv39,
|
||||
9 => Mode::Sv48,
|
||||
10 => Mode::Sv57,
|
||||
11 => Mode::Sv64,
|
||||
_ => unreachable!(),
|
||||
}
|
||||
}
|
||||
|
||||
/// Address space identifier
|
||||
#[inline]
|
||||
#[cfg(riscv32)]
|
||||
pub fn asid(&self) -> usize {
|
||||
self.bits.get_bits(22..31)
|
||||
}
|
||||
|
||||
/// Address space identifier
|
||||
#[inline]
|
||||
#[cfg(riscv64)]
|
||||
pub fn asid(&self) -> usize {
|
||||
self.bits.get_bits(44..60)
|
||||
}
|
||||
|
||||
/// Physical page number
|
||||
#[inline]
|
||||
#[cfg(riscv32)]
|
||||
pub fn ppn(&self) -> usize {
|
||||
self.bits.get_bits(0..22)
|
||||
}
|
||||
|
||||
/// Physical page number
|
||||
#[inline]
|
||||
#[cfg(riscv64)]
|
||||
pub fn ppn(&self) -> usize {
|
||||
self.bits.get_bits(0..44)
|
||||
}
|
||||
}
|
||||
|
||||
#[cfg(riscv32)]
|
||||
#[derive(Clone, Copy, Debug, Eq, PartialEq)]
|
||||
pub enum Mode {
|
||||
Bare = 0,
|
||||
Sv32 = 1,
|
||||
}
|
||||
|
||||
#[cfg(riscv64)]
|
||||
#[derive(Clone, Copy, Debug, Eq, PartialEq)]
|
||||
pub enum Mode {
|
||||
Bare = 0,
|
||||
Sv39 = 8,
|
||||
Sv48 = 9,
|
||||
Sv57 = 10,
|
||||
Sv64 = 11,
|
||||
}
|
||||
|
||||
read_csr_as!(Satp, 0x180, __read_satp);
|
||||
write_csr!(0x180, __write_satp);
|
||||
|
||||
#[inline]
|
||||
#[cfg(riscv32)]
|
||||
pub unsafe fn set(mode: Mode, asid: usize, ppn: usize) {
|
||||
let mut bits = 0usize;
|
||||
bits.set_bits(31..32, mode as usize);
|
||||
bits.set_bits(22..31, asid);
|
||||
bits.set_bits(0..22, ppn);
|
||||
_write(bits);
|
||||
}
|
||||
|
||||
#[inline]
|
||||
#[cfg(riscv64)]
|
||||
pub unsafe fn set(mode: Mode, asid: usize, ppn: usize) {
|
||||
let mut bits = 0usize;
|
||||
bits.set_bits(60..64, mode as usize);
|
||||
bits.set_bits(44..60, asid);
|
||||
bits.set_bits(0..44, ppn);
|
||||
_write(bits);
|
||||
}
|
||||
|
|
@ -1,117 +0,0 @@
|
|||
//! scause register
|
||||
|
||||
use bit_field::BitField;
|
||||
use core::mem::size_of;
|
||||
|
||||
/// scause register
|
||||
#[derive(Clone, Copy)]
|
||||
pub struct Scause {
|
||||
bits: usize,
|
||||
}
|
||||
|
||||
/// Trap Cause
|
||||
#[derive(Copy, Clone, Debug, Eq, PartialEq)]
|
||||
pub enum Trap {
|
||||
Interrupt(Interrupt),
|
||||
Exception(Exception),
|
||||
}
|
||||
|
||||
/// Interrupt
|
||||
#[derive(Copy, Clone, Debug, Eq, PartialEq)]
|
||||
pub enum Interrupt {
|
||||
UserSoft,
|
||||
SupervisorSoft,
|
||||
UserTimer,
|
||||
SupervisorTimer,
|
||||
UserExternal,
|
||||
SupervisorExternal,
|
||||
Unknown,
|
||||
}
|
||||
|
||||
/// Exception
|
||||
#[derive(Copy, Clone, Debug, Eq, PartialEq)]
|
||||
pub enum Exception {
|
||||
InstructionMisaligned,
|
||||
InstructionFault,
|
||||
IllegalInstruction,
|
||||
Breakpoint,
|
||||
LoadFault,
|
||||
StoreMisaligned,
|
||||
StoreFault,
|
||||
UserEnvCall,
|
||||
InstructionPageFault,
|
||||
LoadPageFault,
|
||||
StorePageFault,
|
||||
Unknown,
|
||||
}
|
||||
|
||||
impl Interrupt {
|
||||
pub fn from(nr: usize) -> Self {
|
||||
match nr {
|
||||
0 => Interrupt::UserSoft,
|
||||
1 => Interrupt::SupervisorSoft,
|
||||
4 => Interrupt::UserTimer,
|
||||
5 => Interrupt::SupervisorTimer,
|
||||
8 => Interrupt::UserExternal,
|
||||
9 => Interrupt::SupervisorExternal,
|
||||
_ => Interrupt::Unknown,
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
impl Exception {
|
||||
pub fn from(nr: usize) -> Self {
|
||||
match nr {
|
||||
0 => Exception::InstructionMisaligned,
|
||||
1 => Exception::InstructionFault,
|
||||
2 => Exception::IllegalInstruction,
|
||||
3 => Exception::Breakpoint,
|
||||
5 => Exception::LoadFault,
|
||||
6 => Exception::StoreMisaligned,
|
||||
7 => Exception::StoreFault,
|
||||
8 => Exception::UserEnvCall,
|
||||
12 => Exception::InstructionPageFault,
|
||||
13 => Exception::LoadPageFault,
|
||||
15 => Exception::StorePageFault,
|
||||
_ => Exception::Unknown,
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
impl Scause {
|
||||
/// Returns the contents of the register as raw bits
|
||||
#[inline]
|
||||
pub fn bits(&self) -> usize {
|
||||
self.bits
|
||||
}
|
||||
|
||||
/// Returns the code field
|
||||
pub fn code(&self) -> usize {
|
||||
let bit = 1 << (size_of::<usize>() * 8 - 1);
|
||||
self.bits & !bit
|
||||
}
|
||||
|
||||
/// Trap Cause
|
||||
#[inline]
|
||||
pub fn cause(&self) -> Trap {
|
||||
if self.is_interrupt() {
|
||||
Trap::Interrupt(Interrupt::from(self.code()))
|
||||
} else {
|
||||
Trap::Exception(Exception::from(self.code()))
|
||||
}
|
||||
}
|
||||
|
||||
/// Is trap cause an interrupt.
|
||||
#[inline]
|
||||
pub fn is_interrupt(&self) -> bool {
|
||||
self.bits.get_bit(size_of::<usize>() * 8 - 1)
|
||||
}
|
||||
|
||||
/// Is trap cause an exception.
|
||||
#[inline]
|
||||
pub fn is_exception(&self) -> bool {
|
||||
!self.is_interrupt()
|
||||
}
|
||||
}
|
||||
|
||||
read_csr_as!(Scause, 0x142, __read_scause);
|
||||
|
|
@ -1,4 +0,0 @@
|
|||
//! sepc register
|
||||
|
||||
read_csr_as_usize!(0x141, __read_sepc);
|
||||
write_csr_as_usize!(0x141, __write_sepc);
|
||||
|
|
@ -1,76 +0,0 @@
|
|||
//! sie register
|
||||
|
||||
use bit_field::BitField;
|
||||
|
||||
/// sie register
|
||||
#[derive(Clone, Copy, Debug)]
|
||||
pub struct Sie {
|
||||
bits: usize,
|
||||
}
|
||||
|
||||
impl Sie {
|
||||
/// Returns the contents of the register as raw bits
|
||||
#[inline]
|
||||
pub fn bits(&self) -> usize {
|
||||
self.bits
|
||||
}
|
||||
|
||||
/// User Software Interrupt Enable
|
||||
#[inline]
|
||||
pub fn usoft(&self) -> bool {
|
||||
self.bits.get_bit(0)
|
||||
}
|
||||
|
||||
/// Supervisor Software Interrupt Enable
|
||||
#[inline]
|
||||
pub fn ssoft(&self) -> bool {
|
||||
self.bits.get_bit(1)
|
||||
}
|
||||
|
||||
/// User Timer Interrupt Enable
|
||||
#[inline]
|
||||
pub fn utimer(&self) -> bool {
|
||||
self.bits.get_bit(4)
|
||||
}
|
||||
|
||||
/// Supervisor Timer Interrupt Enable
|
||||
#[inline]
|
||||
pub fn stimer(&self) -> bool {
|
||||
self.bits.get_bit(5)
|
||||
}
|
||||
|
||||
/// User External Interrupt Enable
|
||||
#[inline]
|
||||
pub fn uext(&self) -> bool {
|
||||
self.bits.get_bit(8)
|
||||
}
|
||||
|
||||
/// Supervisor External Interrupt Enable
|
||||
#[inline]
|
||||
pub fn sext(&self) -> bool {
|
||||
self.bits.get_bit(9)
|
||||
}
|
||||
}
|
||||
|
||||
read_csr_as!(Sie, 0x104, __read_sie);
|
||||
set!(0x104, __set_sie);
|
||||
clear!(0x104, __clear_sie);
|
||||
|
||||
set_clear_csr!(
|
||||
/// User Software Interrupt Enable
|
||||
, set_usoft, clear_usoft, 1 << 0);
|
||||
set_clear_csr!(
|
||||
/// Supervisor Software Interrupt Enable
|
||||
, set_ssoft, clear_ssoft, 1 << 1);
|
||||
set_clear_csr!(
|
||||
/// User Timer Interrupt Enable
|
||||
, set_utimer, clear_utimer, 1 << 4);
|
||||
set_clear_csr!(
|
||||
/// Supervisor Timer Interrupt Enable
|
||||
, set_stimer, clear_stimer, 1 << 5);
|
||||
set_clear_csr!(
|
||||
/// User External Interrupt Enable
|
||||
, set_uext, clear_uext, 1 << 8);
|
||||
set_clear_csr!(
|
||||
/// Supervisor External Interrupt Enable
|
||||
, set_sext, clear_sext, 1 << 9);
|
||||
|
|
@ -1,55 +0,0 @@
|
|||
//! sip register
|
||||
|
||||
use bit_field::BitField;
|
||||
|
||||
/// sip register
|
||||
#[derive(Clone, Copy, Debug)]
|
||||
pub struct Sip {
|
||||
bits: usize,
|
||||
}
|
||||
|
||||
impl Sip {
|
||||
/// Returns the contents of the register as raw bits
|
||||
#[inline]
|
||||
pub fn bits(&self) -> usize {
|
||||
self.bits
|
||||
}
|
||||
|
||||
/// User Software Interrupt Pending
|
||||
#[inline]
|
||||
pub fn usoft(&self) -> bool {
|
||||
self.bits.get_bit(0)
|
||||
}
|
||||
|
||||
/// Supervisor Software Interrupt Pending
|
||||
#[inline]
|
||||
pub fn ssoft(&self) -> bool {
|
||||
self.bits.get_bit(1)
|
||||
}
|
||||
|
||||
/// User Timer Interrupt Pending
|
||||
#[inline]
|
||||
pub fn utimer(&self) -> bool {
|
||||
self.bits.get_bit(4)
|
||||
}
|
||||
|
||||
/// Supervisor Timer Interrupt Pending
|
||||
#[inline]
|
||||
pub fn stimer(&self) -> bool {
|
||||
self.bits.get_bit(5)
|
||||
}
|
||||
|
||||
/// User External Interrupt Pending
|
||||
#[inline]
|
||||
pub fn uext(&self) -> bool {
|
||||
self.bits.get_bit(8)
|
||||
}
|
||||
|
||||
/// Supervisor External Interrupt Pending
|
||||
#[inline]
|
||||
pub fn sext(&self) -> bool {
|
||||
self.bits.get_bit(9)
|
||||
}
|
||||
}
|
||||
|
||||
read_csr_as!(Sip, 0x144, __read_sip);
|
||||
|
|
@ -1,4 +0,0 @@
|
|||
//! sscratch register
|
||||
|
||||
read_csr_as_usize!(0x140, __read_sscratch);
|
||||
write_csr_as_usize!(0x140, __write_sscratch);
|
||||
|
|
@ -1,140 +0,0 @@
|
|||
//! sstatus register
|
||||
|
||||
use bit_field::BitField;
|
||||
use core::mem::size_of;
|
||||
pub use super::mstatus::FS;
|
||||
|
||||
/// Supervisor Status Register
|
||||
#[derive(Clone, Copy, Debug)]
|
||||
pub struct Sstatus {
|
||||
bits: usize,
|
||||
}
|
||||
|
||||
/// Supervisor Previous Privilege Mode
|
||||
#[derive(Copy, Clone, Debug, Eq, PartialEq)]
|
||||
pub enum SPP {
|
||||
Supervisor = 1,
|
||||
User = 0,
|
||||
}
|
||||
|
||||
impl Sstatus {
|
||||
/// User Interrupt Enable
|
||||
#[inline]
|
||||
pub fn uie(&self) -> bool {
|
||||
self.bits.get_bit(0)
|
||||
}
|
||||
|
||||
/// Supervisor Interrupt Enable
|
||||
#[inline]
|
||||
pub fn sie(&self) -> bool {
|
||||
self.bits.get_bit(1)
|
||||
}
|
||||
|
||||
/// User Previous Interrupt Enable
|
||||
#[inline]
|
||||
pub fn upie(&self) -> bool {
|
||||
self.bits.get_bit(4)
|
||||
}
|
||||
|
||||
/// Supervisor Previous Interrupt Enable
|
||||
#[inline]
|
||||
pub fn spie(&self) -> bool {
|
||||
self.bits.get_bit(5)
|
||||
}
|
||||
|
||||
/// Supervisor Previous Privilege Mode
|
||||
#[inline]
|
||||
pub fn spp(&self) -> SPP {
|
||||
match self.bits.get_bit(8) {
|
||||
true => SPP::Supervisor,
|
||||
false => SPP::User,
|
||||
}
|
||||
}
|
||||
|
||||
/// The status of the floating-point unit
|
||||
#[inline]
|
||||
pub fn fs(&self) -> FS {
|
||||
match self.bits.get_bits(13..15) {
|
||||
0 => FS::Off,
|
||||
1 => FS::Initial,
|
||||
2 => FS::Clean,
|
||||
3 => FS::Dirty,
|
||||
_ => unreachable!(),
|
||||
}
|
||||
}
|
||||
|
||||
/// The status of additional user-mode extensions
|
||||
/// and associated state
|
||||
#[inline]
|
||||
pub fn xs(&self) -> FS {
|
||||
match self.bits.get_bits(15..17) {
|
||||
0 => FS::Off,
|
||||
1 => FS::Initial,
|
||||
2 => FS::Clean,
|
||||
3 => FS::Dirty,
|
||||
_ => unreachable!(),
|
||||
}
|
||||
}
|
||||
|
||||
/// Permit Supervisor User Memory access
|
||||
#[inline]
|
||||
pub fn sum(&self) -> bool {
|
||||
self.bits.get_bit(18)
|
||||
}
|
||||
|
||||
/// Make eXecutable Readable
|
||||
#[inline]
|
||||
pub fn mxr(&self) -> bool {
|
||||
self.bits.get_bit(19)
|
||||
}
|
||||
|
||||
/// Whether either the FS field or XS field
|
||||
/// signals the presence of some dirty state
|
||||
#[inline]
|
||||
pub fn sd(&self) -> bool {
|
||||
self.bits.get_bit(size_of::<usize>() * 8 - 1)
|
||||
}
|
||||
}
|
||||
|
||||
read_csr_as!(Sstatus, 0x100, __read_sstatus);
|
||||
write_csr!(0x100, __write_sstatus);
|
||||
set!(0x100, __set_sstatus);
|
||||
clear!(0x100, __clear_sstatus);
|
||||
|
||||
set_clear_csr!(
|
||||
/// User Interrupt Enable
|
||||
, set_uie, clear_uie, 1 << 0);
|
||||
set_clear_csr!(
|
||||
/// Supervisor Interrupt Enable
|
||||
, set_sie, clear_sie, 1 << 1);
|
||||
set_csr!(
|
||||
/// User Previous Interrupt Enable
|
||||
, set_upie, 1 << 4);
|
||||
set_csr!(
|
||||
/// Supervisor Previous Interrupt Enable
|
||||
, set_spie, 1 << 5);
|
||||
set_clear_csr!(
|
||||
/// Make eXecutable Readable
|
||||
, set_mxr, clear_mxr, 1 << 19);
|
||||
set_clear_csr!(
|
||||
/// Permit Supervisor User Memory access
|
||||
, set_sum, clear_sum, 1 << 18);
|
||||
|
||||
/// Supervisor Previous Privilege Mode
|
||||
#[inline]
|
||||
#[cfg(riscv)]
|
||||
pub unsafe fn set_spp(spp: SPP) {
|
||||
match spp {
|
||||
SPP::Supervisor => _set(1 << 8),
|
||||
SPP::User => _clear(1 << 8),
|
||||
}
|
||||
}
|
||||
|
||||
/// The status of the floating-point unit
|
||||
#[inline]
|
||||
#[cfg(riscv)]
|
||||
pub unsafe fn set_fs(fs: FS) {
|
||||
let mut value = _read();
|
||||
value.set_bits(13..15, fs as usize);
|
||||
_write(value);
|
||||
}
|
||||
|
|
@ -1,3 +0,0 @@
|
|||
//! stval register
|
||||
|
||||
read_csr_as_usize!(0x143, __read_stval);
|
||||
|
|
@ -1,40 +0,0 @@
|
|||
//! stvec register
|
||||
|
||||
pub use crate::register::mtvec::TrapMode;
|
||||
|
||||
/// stvec register
|
||||
#[derive(Clone, Copy, Debug)]
|
||||
pub struct Stvec {
|
||||
bits: usize,
|
||||
}
|
||||
|
||||
impl Stvec {
|
||||
/// Returns the contents of the register as raw bits
|
||||
pub fn bits(&self) -> usize {
|
||||
self.bits
|
||||
}
|
||||
|
||||
/// Returns the trap-vector base-address
|
||||
pub fn address(&self) -> usize {
|
||||
self.bits - (self.bits & 0b11)
|
||||
}
|
||||
|
||||
/// Returns the trap-vector mode
|
||||
pub fn trap_mode(&self) -> TrapMode {
|
||||
let mode = self.bits & 0b11;
|
||||
match mode {
|
||||
0 => TrapMode::Direct,
|
||||
1 => TrapMode::Vectored,
|
||||
_ => unimplemented!()
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
read_csr_as!(Stvec, 0x105, __read_stvec);
|
||||
write_csr!(0x105, __write_stvec);
|
||||
|
||||
/// Writes the CSR
|
||||
#[inline]
|
||||
pub unsafe fn write(addr: usize, mode: TrapMode) {
|
||||
_write(addr + mode as usize);
|
||||
}
|
||||
|
|
@ -1,4 +0,0 @@
|
|||
//! time register
|
||||
|
||||
read_csr_as_usize!(0xC01, __read_time);
|
||||
read_composite_csr!(super::timeh::read(), read());
|
||||
|
|
@ -1,3 +0,0 @@
|
|||
//! timeh register
|
||||
|
||||
read_csr_as_usize_rv32!(0xC81, __read_timeh);
|
||||
|
|
@ -1,17 +0,0 @@
|
|||
//! ucause register
|
||||
|
||||
/// ucause register
|
||||
#[derive(Clone, Copy, Debug)]
|
||||
pub struct Ucause {
|
||||
bits: usize,
|
||||
}
|
||||
|
||||
impl Ucause {
|
||||
/// Returns the contents of the register as raw bits
|
||||
#[inline]
|
||||
pub fn bits(&self) -> usize {
|
||||
self.bits
|
||||
}
|
||||
}
|
||||
|
||||
read_csr_as!(Ucause, 0x042, __read_ucause);
|
||||
|
|
@ -1,4 +0,0 @@
|
|||
//! uepc register
|
||||
|
||||
read_csr_as_usize!(0x041, __read_uepc);
|
||||
write_csr_as_usize!(0x041, __write_uepc);
|
||||
|
|
@ -1,49 +0,0 @@
|
|||
//! uie register
|
||||
|
||||
use bit_field::BitField;
|
||||
|
||||
/// uie register
|
||||
#[derive(Clone, Copy, Debug)]
|
||||
pub struct Uie {
|
||||
bits: usize,
|
||||
}
|
||||
|
||||
impl Uie {
|
||||
/// Returns the contents of the register as raw bits
|
||||
#[inline]
|
||||
pub fn bits(&self) -> usize {
|
||||
self.bits
|
||||
}
|
||||
|
||||
/// User Software Interrupt Enable
|
||||
#[inline]
|
||||
pub fn usoft(&self) -> bool {
|
||||
self.bits.get_bit(0)
|
||||
}
|
||||
|
||||
/// User Timer Interrupt Enable
|
||||
#[inline]
|
||||
pub fn utimer(&self) -> bool {
|
||||
self.bits.get_bit(4)
|
||||
}
|
||||
|
||||
/// User External Interrupt Enable
|
||||
#[inline]
|
||||
pub fn uext(&self) -> bool {
|
||||
self.bits.get_bit(8)
|
||||
}
|
||||
}
|
||||
|
||||
read_csr_as!(Uie, 0x004, __read_uie);
|
||||
set!(0x004, __set_uie);
|
||||
clear!(0x004, __clear_uie);
|
||||
|
||||
set_clear_csr!(
|
||||
/// User Software Interrupt Enable
|
||||
, set_usoft, clear_usoft, 1 << 0);
|
||||
set_clear_csr!(
|
||||
/// User Timer Interrupt Enable
|
||||
, set_utimer, clear_utimer, 1 << 4);
|
||||
set_clear_csr!(
|
||||
/// User External Interrupt Enable
|
||||
, set_uext, clear_uext, 1 << 8);
|
||||
|
|
@ -1,37 +0,0 @@
|
|||
//! uip register
|
||||
|
||||
use bit_field::BitField;
|
||||
|
||||
/// uip register
|
||||
#[derive(Clone, Copy, Debug)]
|
||||
pub struct Uip {
|
||||
bits: usize,
|
||||
}
|
||||
|
||||
impl Uip {
|
||||
/// Returns the contents of the register as raw bits
|
||||
#[inline]
|
||||
pub fn bits(&self) -> usize {
|
||||
self.bits
|
||||
}
|
||||
|
||||
/// User Software Interrupt Pending
|
||||
#[inline]
|
||||
pub fn usoft(&self) -> bool {
|
||||
self.bits.get_bit(0)
|
||||
}
|
||||
|
||||
/// User Timer Interrupt Pending
|
||||
#[inline]
|
||||
pub fn utimer(&self) -> bool {
|
||||
self.bits.get_bit(4)
|
||||
}
|
||||
|
||||
/// User External Interrupt Pending
|
||||
#[inline]
|
||||
pub fn uext(&self) -> bool {
|
||||
self.bits.get_bit(8)
|
||||
}
|
||||
}
|
||||
|
||||
read_csr_as!(Uip, 0x044, __read_uip);
|
||||
|
|
@ -1,4 +0,0 @@
|
|||
//! uscratch register
|
||||
|
||||
read_csr_as_usize!(0x040, __read_uscratch);
|
||||
write_csr_as_usize!(0x040, __write_uscratch);
|
||||
|
|
@ -1,37 +0,0 @@
|
|||
//! ustatus register
|
||||
// TODO: Virtualization, Memory Privilege and Extension Context Fields
|
||||
|
||||
use bit_field::BitField;
|
||||
|
||||
/// ustatus register
|
||||
#[derive(Clone, Copy, Debug)]
|
||||
pub struct Ustatus {
|
||||
bits: usize,
|
||||
}
|
||||
|
||||
impl Ustatus {
|
||||
/// User Interrupt Enable
|
||||
#[inline]
|
||||
pub fn uie(&self) -> bool {
|
||||
self.bits.get_bit(0)
|
||||
}
|
||||
|
||||
/// User Previous Interrupt Enable
|
||||
#[inline]
|
||||
pub fn upie(&self) -> bool {
|
||||
self.bits.get_bit(4)
|
||||
}
|
||||
}
|
||||
|
||||
read_csr_as!(Ustatus, 0x000, __read_ustatus);
|
||||
write_csr!(0x000, __write_ustatus);
|
||||
set!(0x000, __set_ustatus);
|
||||
clear!(0x000, __clear_ustatus);
|
||||
|
||||
set_clear_csr!(
|
||||
/// User Interrupt Enable
|
||||
, set_uie, clear_uie, 1 << 0);
|
||||
|
||||
set_csr!(
|
||||
/// User Previous Interrupt Enable
|
||||
, set_upie, 1 << 4);
|
||||
|
|
@ -1,3 +0,0 @@
|
|||
//! utval register
|
||||
|
||||
read_csr_as_usize!(0x043, __read_utval);
|
||||
|
|
@ -1,40 +0,0 @@
|
|||
//! stvec register
|
||||
|
||||
pub use crate::register::mtvec::TrapMode;
|
||||
|
||||
/// stvec register
|
||||
#[derive(Clone, Copy, Debug)]
|
||||
pub struct Utvec {
|
||||
bits: usize,
|
||||
}
|
||||
|
||||
impl Utvec {
|
||||
/// Returns the contents of the register as raw bits
|
||||
pub fn bits(&self) -> usize {
|
||||
self.bits
|
||||
}
|
||||
|
||||
/// Returns the trap-vector base-address
|
||||
pub fn address(&self) -> usize {
|
||||
self.bits - (self.bits & 0b11)
|
||||
}
|
||||
|
||||
/// Returns the trap-vector mode
|
||||
pub fn trap_mode(&self) -> TrapMode {
|
||||
let mode = self.bits & 0b11;
|
||||
match mode {
|
||||
0 => TrapMode::Direct,
|
||||
1 => TrapMode::Vectored,
|
||||
_ => unimplemented!()
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
read_csr_as!(Utvec, 0x005, __read_utvec);
|
||||
write_csr!(0x005, __write_utvec);
|
||||
|
||||
/// Writes the CSR
|
||||
#[inline]
|
||||
pub unsafe fn write(addr: usize, mode: TrapMode) {
|
||||
_write(addr + mode as usize);
|
||||
}
|
||||
|
|
@ -1,4 +0,0 @@
|
|||
//! uscratch register
|
||||
|
||||
read_csr_as_usize!(0xCC0, __read_vdci);
|
||||
write_csr_as_usize!(0xCC0, __write_vdci);
|
||||
|
|
@ -1,4 +0,0 @@
|
|||
//! uscratch register
|
||||
|
||||
read_csr_as_usize!(0xBC0, __read_vmim);
|
||||
write_csr_as_usize!(0xBC0, __write_vmim);
|
||||
|
|
@ -1,4 +0,0 @@
|
|||
//! uscratch register
|
||||
|
||||
read_csr_as_usize!(0xFC0, __read_vmip);
|
||||
write_csr_as_usize!(0xFC0, __write_vmip);
|
||||
|
|
@ -1,4 +0,0 @@
|
|||
//! uscratch register
|
||||
|
||||
read_csr_as_usize!(0x9C0, __read_vsim);
|
||||
write_csr_as_usize!(0x9C0, __write_vsim);
|
||||
|
|
@ -1,4 +0,0 @@
|
|||
//! uscratch register
|
||||
|
||||
read_csr_as_usize!(0xDC0, __read_vsip);
|
||||
write_csr_as_usize!(0xDC0, __write_vsip);
|
||||
Loading…
Reference in New Issue