From 027ecb85769d6ebeff0fcb5ddcbafb027209debd Mon Sep 17 00:00:00 2001 From: tevador Date: Sat, 7 Oct 2023 12:51:19 +0200 Subject: [PATCH] JIT compiler for RISC-V --- CMakeLists.txt | 36 + src/common.hpp | 7 + src/jit_compiler.hpp | 42 +- src/jit_compiler_rv64.cpp | 1175 ++++++++++++++++++++++++++++ src/jit_compiler_rv64.hpp | 69 ++ src/jit_compiler_rv64_static.S | 1235 ++++++++++++++++++++++++++++++ src/jit_compiler_rv64_static.hpp | 53 ++ src/tests/riscv64_zba.s | 9 + src/tests/riscv64_zbb.s | 9 + 9 files changed, 2633 insertions(+), 2 deletions(-) create mode 100644 src/jit_compiler_rv64.cpp create mode 100644 src/jit_compiler_rv64.hpp create mode 100644 src/jit_compiler_rv64_static.S create mode 100644 src/jit_compiler_rv64_static.hpp create mode 100644 src/tests/riscv64_zba.s create mode 100644 src/tests/riscv64_zbb.s diff --git a/CMakeLists.txt b/CMakeLists.txt index 5ffbe01..ebbdff2 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -173,6 +173,42 @@ if(ARM_ID STREQUAL "aarch64" OR ARM_ID STREQUAL "arm64" OR ARM_ID STREQUAL "armv endif() endif() +# RISC-V +if(ARCH_ID STREQUAL "riscv64") + list(APPEND randomx_sources + src/jit_compiler_rv64_static.S + src/jit_compiler_rv64.cpp) + # cheat because cmake and ccache hate each other + set_property(SOURCE src/jit_compiler_rv64_static.S PROPERTY LANGUAGE C) + set_property(SOURCE src/jit_compiler_rv64_static.S PROPERTY XCODE_EXPLICIT_FILE_TYPE sourcecode.asm) + + # default build uses the RV64GC baseline + set(RVARCH "rv64gc") + + # for native builds, enable Zba and Zbb if supported by the CPU + if(ARCH STREQUAL "native") + enable_language(ASM) + try_run(RANDOMX_ZBA_RUN_FAIL + RANDOMX_ZBA_COMPILE_OK + ${CMAKE_CURRENT_BINARY_DIR}/ + ${CMAKE_CURRENT_SOURCE_DIR}/src/tests/riscv64_zba.s + COMPILE_DEFINITIONS "-march=rv64gc_zba") + if (RANDOMX_ZBA_COMPILE_OK AND NOT RANDOMX_ZBA_RUN_FAIL) + set(RVARCH "${RVARCH}_zba") + endif() + try_run(RANDOMX_ZBB_RUN_FAIL + RANDOMX_ZBB_COMPILE_OK + ${CMAKE_CURRENT_BINARY_DIR}/ + ${CMAKE_CURRENT_SOURCE_DIR}/src/tests/riscv64_zbb.s + COMPILE_DEFINITIONS "-march=rv64gc_zbb") + if (RANDOMX_ZBB_COMPILE_OK AND NOT RANDOMX_ZBB_RUN_FAIL) + set(RVARCH "${RVARCH}_zbb") + endif() + endif() + + add_flag("-march=${RVARCH}") +endif() + set(RANDOMX_INCLUDE "${CMAKE_CURRENT_SOURCE_DIR}/src" CACHE STRING "RandomX Include path") add_library(randomx ${randomx_sources}) diff --git a/src/common.hpp b/src/common.hpp index a77feb3..f4b8534 100644 --- a/src/common.hpp +++ b/src/common.hpp @@ -116,12 +116,19 @@ namespace randomx { #if defined(_M_X64) || defined(__x86_64__) #define RANDOMX_HAVE_COMPILER 1 + #define RANDOMX_COMPILER_X86 class JitCompilerX86; using JitCompiler = JitCompilerX86; #elif defined(__aarch64__) #define RANDOMX_HAVE_COMPILER 1 + #define RANDOMX_COMPILER_A64 class JitCompilerA64; using JitCompiler = JitCompilerA64; +#elif defined(__riscv) && __riscv_xlen == 64 + #define RANDOMX_HAVE_COMPILER 1 + #define RANDOMX_COMPILER_RV64 + class JitCompilerRV64; + using JitCompiler = JitCompilerRV64; #else #define RANDOMX_HAVE_COMPILER 0 class JitCompilerFallback; diff --git a/src/jit_compiler.hpp b/src/jit_compiler.hpp index 17fdad4..5b76fa5 100644 --- a/src/jit_compiler.hpp +++ b/src/jit_compiler.hpp @@ -28,10 +28,48 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. #pragma once -#if defined(_M_X64) || defined(__x86_64__) +#include "common.hpp" + +namespace randomx { + + struct CodeBuffer { + uint8_t* code; + int32_t codePos; + int32_t rcpCount; + + void emit(const uint8_t* src, int32_t len) { + memcpy(&code[codePos], src, len); + codePos += len; + } + + template + void emit(T src) { + memcpy(&code[codePos], &src, sizeof(src)); + codePos += sizeof(src); + } + + void emitAt(int32_t codePos, const uint8_t* src, int32_t len) { + memcpy(&code[codePos], src, len); + } + + template + void emitAt(int32_t codePos, T src) { + memcpy(&code[codePos], &src, sizeof(src)); + } + }; + + struct CompilerState : public CodeBuffer { + int32_t instructionOffsets[RANDOMX_PROGRAM_SIZE]; + int registerUsage[RegistersCount]; + }; +} + +#if defined(RANDOMX_COMPILER_X86) #include "jit_compiler_x86.hpp" -#elif defined(__aarch64__) +#elif defined(RANDOMX_COMPILER_A64) #include "jit_compiler_a64.hpp" +#elif defined(RANDOMX_COMPILER_RV64) +#include "jit_compiler_rv64.hpp" #else #include "jit_compiler_fallback.hpp" #endif diff --git a/src/jit_compiler_rv64.cpp b/src/jit_compiler_rv64.cpp new file mode 100644 index 0000000..301c294 --- /dev/null +++ b/src/jit_compiler_rv64.cpp @@ -0,0 +1,1175 @@ +/* +Copyright (c) 2023 tevador + +All rights reserved. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are met: + * Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + * Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in the + documentation and/or other materials provided with the distribution. + * Neither the name of the copyright holder nor the + names of its contributors may be used to endorse or promote products + derived from this software without specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND +ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED +WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE +DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE +FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR +SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER +CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +*/ + +#include +#include +#include +#include +#include "jit_compiler_rv64.hpp" +#include "jit_compiler_rv64_static.hpp" +#include "superscalar.hpp" +#include "program.hpp" +#include "reciprocal.h" +#include "virtual_memory.h" + + +namespace { +#define HANDLER_ARGS randomx::CompilerState& state, randomx::Instruction isn, int i + using InstructionHandler = void(HANDLER_ARGS); + extern InstructionHandler* opcodeMap1[256]; +} + +namespace rv64 { + constexpr uint16_t C_LUI = 0x6001; + constexpr uint32_t LUI = 0x00000037; + constexpr uint16_t C_ADDI = 0x0001; + constexpr uint32_t ADDI = 0x00000013; + constexpr uint32_t ADDIW = 0x0000001b; + constexpr uint16_t C_ADD = 0x9002; + constexpr uint32_t ADD = 0x00000033; + constexpr uint32_t SHXADD = 0x20000033; //Zba + constexpr uint32_t SLL = 0x00001033; + constexpr uint32_t SRL = 0x00005033; + constexpr uint32_t SLLI = 0x00001013; + constexpr uint32_t C_SLLI = 0x0002; + constexpr uint32_t SRLI = 0x00005013; + constexpr uint32_t AND = 0x00007033; + constexpr uint32_t ANDI = 0x00007013; + constexpr uint16_t C_AND = 0x8c61; + constexpr uint16_t C_ANDI = 0x8801; + constexpr uint32_t OR = 0x00006033; + constexpr uint16_t C_OR = 0x8c41; + constexpr uint32_t XOR = 0x00004033; + constexpr uint16_t C_XOR = 0x8c21; + constexpr uint32_t LD = 0x00003003; + constexpr uint16_t C_LD = 0x6000; + constexpr uint16_t C_LW = 0x4000; + constexpr uint32_t SD = 0x00003023; + constexpr uint32_t SUB = 0x40000033; + constexpr uint16_t C_SUB = 0x8c01; + constexpr uint32_t MUL = 0x02000033; + constexpr uint32_t MULHU = 0x02003033; + constexpr uint32_t MULH = 0x02001033; + constexpr uint16_t C_MV = 0x8002; + constexpr uint32_t ROR = 0x60005033; //Zbb + constexpr uint32_t RORI = 0x60005013; //Zbb + constexpr uint32_t ROL = 0x60001033; //Zbb + constexpr uint32_t FMV_X_D = 0xe2000053; + constexpr uint32_t FMV_D_X = 0xf2000053; + constexpr uint32_t FMV_D = 0x22000053; + constexpr uint32_t FADD_D = 0x02007053; + constexpr uint32_t FSUB_D = 0x0a007053; + constexpr uint32_t FMUL_D = 0x12007053; + constexpr uint32_t FDIV_D = 0x1a007053; + constexpr uint32_t FSQRT_D = 0x5a007053; + constexpr uint32_t FCVT_D_W = 0xd2000053; + constexpr uint32_t FSRM = 0x00201073; + constexpr uint16_t C_BEQZ = 0xc001; + constexpr uint32_t BEQ = 0x00000063; + constexpr uint16_t C_BNEZ = 0xe001; + constexpr uint32_t JAL = 0x0000006f; + constexpr uint16_t C_RET = 0x8082; +} + +namespace randomx { + + constexpr size_t MaxRandomXInstrCodeSize = 56; //FDIV_M requires 56 bytes of rv64 code + constexpr size_t MaxSuperscalarInstrSize = 12; //IXOR_C requires 12 bytes of rv64 code + constexpr size_t SuperscalarProgramHeader = 136; //overhead per superscalar program + constexpr size_t CodeAlign = 4096; //align code size to a multiple of 4 KiB + constexpr size_t LiteralPoolSize = CodeAlign; + constexpr size_t SuperscalarLiteraPoolSize = RANDOMX_CACHE_ACCESSES * CodeAlign; + constexpr size_t ReserveCodeSize = CodeAlign; //prologue, epilogue + reserve + + constexpr size_t RandomXCodeSize = alignSize(LiteralPoolSize + ReserveCodeSize + MaxRandomXInstrCodeSize * RANDOMX_PROGRAM_SIZE, CodeAlign); + constexpr size_t SuperscalarSize = alignSize(SuperscalarLiteraPoolSize + ReserveCodeSize + (SuperscalarProgramHeader + MaxSuperscalarInstrSize * SuperscalarMaxSize) * RANDOMX_CACHE_ACCESSES, CodeAlign); + + static_assert(RandomXCodeSize < INT32_MAX / 2, "RandomXCodeSize is too large"); + static_assert(SuperscalarSize < INT32_MAX / 2, "SuperscalarSize is too large"); + + constexpr uint32_t CodeSize = RandomXCodeSize + SuperscalarSize; + constexpr uint32_t ExecutableSize = CodeSize - LiteralPoolSize; + + constexpr int32_t LiteralPoolOffset = LiteralPoolSize / 2; + constexpr int32_t SuperScalarLiteralPoolOffset = RandomXCodeSize; + constexpr int32_t SuperScalarLiteralPoolRefOffset = RandomXCodeSize + (RANDOMX_CACHE_ACCESSES - 1) * LiteralPoolSize + LiteralPoolOffset; + constexpr int32_t SuperScalarHashOffset = SuperScalarLiteralPoolOffset + SuperscalarLiteraPoolSize; + + constexpr int maskLog2(uint32_t x, int prev) { + return x == 1 ? prev : maskLog2(x >> 1, prev + 1); + } + + constexpr int32_t unsigned32ToSigned2sCompl(uint32_t x) { + return (-1 == ~0) ? (int32_t)x : (x > INT32_MAX ? (-(int32_t)(UINT32_MAX - x) - 1) : (int32_t)x); + } + + constexpr int MaskL1Shift = 32 - maskLog2(RANDOMX_SCRATCHPAD_L1, 0); + constexpr int MaskL2Shift = 32 - maskLog2(RANDOMX_SCRATCHPAD_L2, 0); + constexpr int MaskL3Shift = 32 - maskLog2(RANDOMX_SCRATCHPAD_L3, 0); + + constexpr int RcpLiteralsOffset = 144; + + constexpr int LiteralPoolReg = 3; //x3 + constexpr int SpadReg = 5; //x5 + constexpr int DataReg = 6; //x6 + constexpr int SuperscalarReg = 7; //x7 + constexpr int SshTmp1Reg = 28; //x28 + constexpr int SshTmp2Reg = 29; //x29 + constexpr int SshPoolReg = 30; //x30 + constexpr int SshRcpReg = 31; //x31 + constexpr int Tmp1Reg = 8; //x8 + constexpr int Tmp2Reg = 9; //x9 + constexpr int Tmp1RegF = 24; //f24 + constexpr int Tmp2RegF = 25; //f25 + constexpr int MaskL1Reg = 10; //x10 + constexpr int MaskL2Reg = 11; //x11 + constexpr int MaskFscalReg = 12; //x12 + constexpr int MaskEclear = 13; //x13 + constexpr int MaskEsetLo = 14; //x14 + constexpr int MaskEsetHi = 15; //x15 + constexpr int MaskL3Reg = 1; //x1 + constexpr int ReturnReg = 1; //x1 + constexpr int SpAddr0Reg = 26; //x26 + constexpr int OffsetXC = -8; //x8-x15 + constexpr int OffsetR = 16; //x16-x23 + constexpr int OffsetF = 0; //f0-f7 + constexpr int OffsetE = 8; //f8-f15 + constexpr int OffsetA = 16; //f16-f23 + constexpr int OffsetRcp = 28; //x28-x31 + constexpr int OffsetRcpF = 22; //f26-f31 + constexpr int OffsetSsh = 8; //x8-x15 + + //destination register (bit 7+) + constexpr int rvrd(int reg) { + return reg << 7; + } + + //first source register (bit 15+) + constexpr int rvrs1(int reg) { + return reg << 15; + } + + //second source register (bit 20+) + constexpr int rvrs2(int reg) { + return reg << 20; + } + + //compressed source register (bit 2+) + constexpr int rvcrs(int reg) { + return reg << 2; + } + + //base instruction: {op} x{rd}, x{rs1}, x{rs2} + constexpr uint32_t rvi(uint32_t op, int rd, int rs1, int rs2 = 0) { + return op | rvrs2(rs2) | rvrs1(rs1) | rvrd(rd); + } + + //compressed instruction: op x{rd}, x{rs} + constexpr uint16_t rvc(uint16_t op, int rd, int rs) { + return op | rvrd(rd) | rvcrs(rs); + } + + //compressed instruction: op x{rd}, imm6 + constexpr uint16_t rvc(uint16_t op, int imm5, int rd, int imm40) { + return op | (imm5 << 12) | rvrd(rd) | (imm40 << 2); + } + + constexpr int regR(int reg) { + return reg + OffsetR; + } + + constexpr int regLoA(int reg) { + return 2 * reg + OffsetA; + } + + constexpr int regHiA(int reg) { + return 2 * reg + OffsetA + 1; + } + + constexpr int regLoF(int reg) { + return 2 * reg + OffsetF; + } + + constexpr int regHiF(int reg) { + return 2 * reg + OffsetF + 1; + } + + constexpr int regLoE(int reg) { + return 2 * reg + OffsetE; + } + + constexpr int regHiE(int reg) { + return 2 * reg + OffsetE + 1; + } + + constexpr int regRcp(int reg) { + return reg + OffsetRcp; + } + + constexpr int regRcpF(int reg) { + return reg + OffsetRcpF; + } + + constexpr int regSS(int reg) { + return reg + OffsetSsh; + } + + static const uint8_t* codeLiterals = (uint8_t*)&randomx_riscv64_literals; + static const uint8_t* codeLiteralsEnd = (uint8_t*)&randomx_riscv64_literals_end; + static const uint8_t* codeDataInit = (uint8_t*)&randomx_riscv64_data_init; + static const uint8_t* codeFixDataCall = (uint8_t*)&randomx_riscv64_fix_data_call; + static const uint8_t* codePrologue = (uint8_t*)&randomx_riscv64_prologue; + static const uint8_t* codeLoopBegin = (uint8_t*)&randomx_riscv64_loop_begin; + static const uint8_t* codeDataRead = (uint8_t*)&randomx_riscv64_data_read; + static const uint8_t* codeDataReadLight = (uint8_t*)&randomx_riscv64_data_read_light; + static const uint8_t* codeFixLoopCall = (uint8_t*)&randomx_riscv64_fix_loop_call; + static const uint8_t* codeSpadStore = (uint8_t*)&randomx_riscv64_spad_store; + static const uint8_t* codeSpadStoreHardAes = (uint8_t*)&randomx_riscv64_spad_store_hardaes; + static const uint8_t* codeSpadStoreSoftAes = (uint8_t*)&randomx_riscv64_spad_store_softaes; + static const uint8_t* codeLoopEnd = (uint8_t*)&randomx_riscv64_loop_end; + static const uint8_t* codeFixContinueLoop = (uint8_t*)&randomx_riscv64_fix_continue_loop; + static const uint8_t* codeEpilogue = (uint8_t*)&randomx_riscv64_epilogue; + static const uint8_t* codeSoftAes = (uint8_t*)&randomx_riscv64_softaes; + static const uint8_t* codeProgramEnd = (uint8_t*)&randomx_riscv64_program_end; + static const uint8_t* codeSshInit = (uint8_t*)&randomx_riscv64_ssh_init; + static const uint8_t* codeSshLoad = (uint8_t*)&randomx_riscv64_ssh_load; + static const uint8_t* codeSshPrefetch = (uint8_t*)&randomx_riscv64_ssh_prefetch; + static const uint8_t* codeSshEnd = (uint8_t*)&randomx_riscv64_ssh_end; + + static const int32_t sizeLiterals = codeLiteralsEnd - codeLiterals; + static const int32_t sizeDataInit = codePrologue - codeDataInit; + static const int32_t sizePrologue = codeLoopBegin - codePrologue; + static const int32_t sizeLoopBegin = codeDataRead - codeLoopBegin; + static const int32_t sizeDataRead = codeDataReadLight - codeDataRead; + static const int32_t sizeDataReadLight = codeSpadStore - codeDataReadLight; + static const int32_t sizeSpadStore = codeSpadStoreHardAes - codeSpadStore; + static const int32_t sizeSpadStoreSoftAes = codeLoopEnd - codeSpadStoreSoftAes; + static const int32_t sizeLoopEnd = codeEpilogue - codeLoopEnd; + static const int32_t sizeEpilogue = codeSoftAes - codeEpilogue; + static const int32_t sizeSoftAes = codeProgramEnd - codeSoftAes; + static const int32_t sizeSshInit = codeSshLoad - codeSshInit; + static const int32_t sizeSshLoad = codeSshPrefetch - codeSshLoad; + static const int32_t sizeSshPrefetch = codeSshEnd - codeSshPrefetch; + + static const int32_t offsetFixDataCall = codeFixDataCall - codeDataInit; + static const int32_t offsetFixLoopCall = codeFixLoopCall - codeDataReadLight; + static const int32_t offsetFixContinueLoop = codeFixContinueLoop - codeLoopEnd; + + static const int32_t LoopTopPos = LiteralPoolSize + sizeDataInit + sizePrologue; + static const int32_t RandomXCodePos = LoopTopPos + sizeLoopBegin; + + static void clearCache(CodeBuffer& buf) { +#ifdef __GNUC__ + __builtin___clear_cache((char*)buf.code, (char*)(buf.code + CodeSize)); +#endif + } + + //emits code to calculate: x{dst} = x{src} + {imm32} + //takes 1-3 isns, 2-10 bytes + static void emitImm32(CodeBuffer& buf, int32_t imm, int dst, int src = 0, int tmp = 0) { + + //lower 12 bits + int32_t limm = (imm << 20) >> 20; + //upper 20 bits + int32_t uimm = (imm >> 12) + (limm < 0); + + //If there are no upper bits, the whole thing + //can be done with a single instruction. + if (uimm == 0) { + //addi x{dst}, x{src}, {limm} + buf.emit(rvi(rv64::ADDI, dst, src, limm)); + return; + } + + //dst1 is the register where imm will be materialized + int dst1 = src != dst ? dst : tmp; + assert(dst1 != 0); + //src1 is the register that will be added to the result + int src1 = src != dst ? src : dst1; + + //load upper bits + if (uimm >= -32 && uimm <= 31) { + //c.lui x{dst1}, {uimm} + buf.emit(rvc(rv64::C_LUI, (uimm < 0), dst1, (uimm & 31))); + } + else { + //lui x{dst1}, {uimm} + buf.emit(rv64::LUI | (uimm << 12) | rvrd(dst1)); + } + //load lower bits + if (limm != 0) { + //Note: this must be addiw NOT addi, otherwise the upper 32 bits + //of the 64-bit register will be incorrect. + //addiw x{dst1}, x{dst1}, {limm} + buf.emit(rvi(rv64::ADDIW, dst1, dst1, limm)); + } + //add src + if (src1 != 0) { + //c.add x{dst}, x{src1} + buf.emit(rvc(rv64::C_ADD, dst, src1)); + } + } + + //x9 = &Scratchpad[isn.imm] + //takes 3 isns, 10 bytes + static void genAddressRegImm(CodeBuffer& buf, const Instruction& isn) { + //signed offset 8-byte aligned + int32_t imm = unsigned32ToSigned2sCompl(isn.getImm32()) & ScratchpadL3Mask; + //x9 = x5 + {imm} + emitImm32(buf, imm, Tmp2Reg, SpadReg, Tmp1Reg); + } + + //x9 = &Scratchpad[isn.src + isn.imm] (for reading) + //takes 5 isns, 12 bytes + static void genAddressReg(CodeBuffer& buf, const Instruction& isn) { + int shift, maskReg; + if (isn.getModMem()) { + shift = MaskL1Shift; + maskReg = MaskL1Reg; + } + else { + shift = MaskL2Shift; + maskReg = MaskL2Reg; + } + int32_t imm = unsigned32ToSigned2sCompl(isn.getImm32()); + imm = (imm << shift) >> shift; + //x9 = x{src} + {imm} + emitImm32(buf, imm, Tmp2Reg, regR(isn.src), Tmp1Reg); + //c.and x9, x{maskReg} + buf.emit(rvc(rv64::C_AND, (Tmp2Reg + OffsetXC), (maskReg + OffsetXC))); + //c.add x9, x{spadReg} + buf.emit(rvc(rv64::C_ADD, Tmp2Reg, SpadReg)); + } + + //x8 = Scratchpad[isn] + static void loadFromScratchpad(CodeBuffer& buf, const Instruction& isn) { + if (isn.src != isn.dst) { + //x9 = &Scratchpad[isn.src + isn.imm] + genAddressReg(buf, isn); + } + else { + ///x9 = &Scratchpad[isn.imm] + genAddressRegImm(buf, isn); + } + //c.ld x8, 0(x9) + buf.emit(rvc(rv64::C_LD, Tmp2Reg + OffsetXC, Tmp1Reg + OffsetXC)); + } + + //x9 = &Scratchpad[isn.dst + isn.imm32] (for writing) + //takes 5 isns, 12-16 bytes + static void genAddressRegDst(CodeBuffer& buf, const Instruction& isn) { + if (isn.getModCond() < StoreL3Condition) { + int shift, maskReg; + if (isn.getModMem()) { + shift = MaskL1Shift; + maskReg = MaskL1Reg; + } + else { + shift = MaskL2Shift; + maskReg = MaskL2Reg; + } + int32_t imm = unsigned32ToSigned2sCompl(isn.getImm32()); + imm = (imm << shift) >> shift; + //x9 = x{dst} + {imm} + emitImm32(buf, imm, Tmp2Reg, regR(isn.dst), Tmp1Reg); + //c.and x9, x{maskReg} + buf.emit(rvc(rv64::C_AND, Tmp2Reg + OffsetXC, maskReg + OffsetXC)); + //c.add x9, x5 + buf.emit(rvc(rv64::C_ADD, Tmp2Reg, SpadReg)); + } + else { + int shift = MaskL3Shift; + int32_t imm = unsigned32ToSigned2sCompl(isn.getImm32()); + imm = (imm << shift) >> shift; + //x9 = x{dst} + {imm} + emitImm32(buf, imm, Tmp2Reg, regR(isn.dst), Tmp1Reg); + //and x9, x9, x1 + buf.emit(rvi(rv64::AND, Tmp2Reg, Tmp2Reg, MaskL3Reg)); + //c.add x9, x5 + buf.emit(rvc(rv64::C_ADD, Tmp2Reg, SpadReg)); + } + } + + static void emitRcpLiteral1(CodeBuffer& buf, uint64_t literal) { + //first 238 at positive offsets + if (buf.rcpCount < 238) { + buf.emitAt(LiteralPoolOffset + RcpLiteralsOffset + buf.rcpCount * 8, literal); + buf.rcpCount++; + } + //next 256 at negative offsets + else if (buf.rcpCount < 494) { + buf.emitAt(buf.rcpCount * 8 - (2048 - RcpLiteralsOffset), literal); + buf.rcpCount++; + } + else { + //checked at compile time, but double-check here + throw std::runtime_error("Literal pool overflow"); + } + } + + static void emitRcpLiteral2(CodeBuffer& buf, uint64_t literal, int32_t numLiterals) { + //store the current literal in the pool + int32_t offset = 2040 - buf.rcpCount * 8; + buf.emitAt(SuperScalarLiteralPoolRefOffset + offset, literal); + buf.rcpCount++; + if (buf.rcpCount >= numLiterals) { + return; + } + //load the next literal + offset -= 8; + int32_t imm = offset & 0xfff; + //ld x31, {offset}(x30) + buf.emit(rvi(rv64::LD, SshRcpReg, SshPoolReg, imm)); + if (imm == 0x800) { + //move pool pointer back 4KB + //c.lui x29, 0xfffff + buf.emit(rvc(rv64::C_LUI, 1, SshTmp2Reg, 31)); + //c.add x30, x29 + buf.emit(rvc(rv64::C_ADD, SshPoolReg, SshTmp2Reg)); + } + } + + static void emitJump(CodeBuffer& buf, int dst, int32_t codePos, int32_t targetPos) { + int32_t imm = targetPos - codePos; + int32_t imm20 = (imm < 0) << 11; + int32_t imm1912 = (imm >> 7) & 8160; + int32_t imm11 = (imm >> 11) & 1; + int32_t imm101 = imm & 2046; + //jal x{dst}, {imm} + buf.emitAt(codePos, rvi(rv64::JAL, dst + imm1912, 0, imm20 + imm101 + imm11)); + } + + static void emitInstruction(CompilerState& state, Instruction isn, int i) { + state.instructionOffsets[i] = state.codePos; + opcodeMap1[isn.opcode](state, isn, i); + } + + static void emitProgramPrefix(CompilerState& state, Program& prog, ProgramConfiguration& pcfg) { + state.codePos = RandomXCodePos; + state.rcpCount = 0; + state.emitAt(LiteralPoolOffset + sizeLiterals, pcfg.eMask[0]); + state.emitAt(LiteralPoolOffset + sizeLiterals + 8, pcfg.eMask[1]); + for (unsigned i = 0; i < RegistersCount; ++i) { + state.registerUsage[i] = -1; + } + for (unsigned i = 0; i < prog.getSize(); ++i) { + Instruction instr = prog(i); + instr.src %= RegistersCount; + instr.dst %= RegistersCount; + emitInstruction(state, instr, i); + } + } + + static void emitProgramSuffix(CompilerState& state, ProgramConfiguration& pcfg) { + state.emit(codeSpadStore, sizeSpadStore); + int32_t fixPos = state.codePos; + state.emit(codeLoopEnd, sizeLoopEnd); + //xor x26, x{readReg0}, x{readReg1} + state.emitAt(fixPos, rvi(rv64::XOR, SpAddr0Reg, regR(pcfg.readReg0), regR(pcfg.readReg1))); + fixPos += offsetFixContinueLoop; + //j LoopTop + emitJump(state, 0, fixPos, LoopTopPos); + state.emit(codeEpilogue, sizeEpilogue); + } + + static void generateSuperscalarCode(CodeBuffer& buf, Instruction isn, const std::vector& reciprocalCache) { + switch ((SuperscalarInstructionType)isn.opcode) + { + case randomx::SuperscalarInstructionType::ISUB_R: + //c.sub x{dst}, x{src} + buf.emit(rvc(rv64::C_SUB, regSS(isn.dst) + OffsetXC, regSS(isn.src) + OffsetXC)); + break; + case randomx::SuperscalarInstructionType::IXOR_R: + //c.xor x{dst}, x{src} + buf.emit(rvc(rv64::C_XOR, regSS(isn.dst) + OffsetXC, regSS(isn.src) + OffsetXC)); + break; + case randomx::SuperscalarInstructionType::IADD_RS: + { + int shift = isn.getModShift(); + if (shift == 0) { + //c.add x{dst}, x{src} + buf.emit(rvc(rv64::C_ADD, regSS(isn.dst), regSS(isn.src))); + } + else { +#ifdef __riscv_zba + //sh{1,2,3}add x{dst}, x{src}, x{dst} + buf.emit(rv64::SHXADD | rvrs2(regSS(isn.dst)) | rvrs1(regSS(isn.src)) | (shift << 13) | rvrd(regSS(isn.dst))); +#else + //slli x28, x{src}, {shift} + buf.emit(rvi(rv64::SLLI, SshTmp1Reg, regSS(isn.src), shift)); + //c.add x{dst}, x28 + buf.emit(rvc(rv64::C_ADD, regSS(isn.dst), SshTmp1Reg)); +#endif + } + } + break; + case randomx::SuperscalarInstructionType::IMUL_R: + //mul x{dst}, x{dst}, x{src} + buf.emit(rvi(rv64::MUL, regSS(isn.dst), regSS(isn.dst), regSS(isn.src))); + break; + case randomx::SuperscalarInstructionType::IROR_C: + { +#ifdef __riscv_zbb + int32_t imm = isn.getImm32() & 63; + //rori x{dst}, x{dst}, {imm} + buf.emit(rvi(rv64::RORI, regSS(isn.dst), regSS(isn.dst), imm)); +#else + int32_t immr = isn.getImm32() & 63; + int32_t imml = -immr & 63; + int32_t imml5 = imml >> 5; + int32_t imml40 = imml & 31; + //srli x28, x{dst}, {immr} + buf.emit(rvi(rv64::SRLI, SshTmp1Reg, regSS(isn.dst), immr)); + //c.slli x{dst}, {imml} + buf.emit(rvc(rv64::C_SLLI, imml5, regSS(isn.dst), imml40)); + //or x{dst}, x{dst}, x28 + buf.emit(rvi(rv64::OR, regSS(isn.dst), regSS(isn.dst), SshTmp1Reg)); +#endif + } + break; + case randomx::SuperscalarInstructionType::IADD_C7: + case randomx::SuperscalarInstructionType::IADD_C8: + case randomx::SuperscalarInstructionType::IADD_C9: + { + int32_t imm = unsigned32ToSigned2sCompl(isn.getImm32()); + //x{dst} = x{dst} + {imm} + emitImm32(buf, imm, regSS(isn.dst), regSS(isn.dst), SshTmp1Reg); + } + break; + case randomx::SuperscalarInstructionType::IXOR_C7: + case randomx::SuperscalarInstructionType::IXOR_C8: + case randomx::SuperscalarInstructionType::IXOR_C9: + { + int32_t imm = unsigned32ToSigned2sCompl(isn.getImm32()); + //x28 = {imm} + emitImm32(buf, imm, SshTmp1Reg); + //xor x{dst}, x{dst}, x28 + buf.emit(rvi(rv64::XOR, regSS(isn.dst), regSS(isn.dst), SshTmp1Reg)); + } + break; + case randomx::SuperscalarInstructionType::IMULH_R: + //mulhu x{dst}, x{dst}, x{src} + buf.emit(rvi(rv64::MULHU, regSS(isn.dst), regSS(isn.dst), regSS(isn.src))); + break; + case randomx::SuperscalarInstructionType::ISMULH_R: + //mulh x{dst}, x{dst}, x{src} + buf.emit(rvi(rv64::MULH, regSS(isn.dst), regSS(isn.dst), regSS(isn.src))); + break; + case randomx::SuperscalarInstructionType::IMUL_RCP: + //mul x{dst}, x{dst}, x31 + buf.emit(rvi(rv64::MUL, regSS(isn.dst), regSS(isn.dst), SshRcpReg)); + //load the next literal into x31 + emitRcpLiteral2(buf, reciprocalCache[isn.getImm32()], reciprocalCache.size()); + break; + default: + UNREACHABLE; + } + } + + size_t JitCompilerRV64::getCodeSize() { + return CodeSize; + } + + JitCompilerRV64::JitCompilerRV64() { + state.code = (uint8_t*)allocMemoryPages(CodeSize); + if (state.code == nullptr) + throw std::runtime_error("allocMemoryPages"); + state.emitAt(LiteralPoolOffset, codeLiterals, sizeLiterals); + state.emitAt(LiteralPoolSize, codeDataInit, sizeDataInit + sizePrologue + sizeLoopBegin); + entryDataInit = state.code + LiteralPoolSize; + entryProgram = state.code + LiteralPoolSize + sizeDataInit; + //jal x1, SuperscalarHash + emitJump(state, ReturnReg, LiteralPoolSize + offsetFixDataCall, SuperScalarHashOffset); + } + + JitCompilerRV64::~JitCompilerRV64() { + freePagedMemory(state.code, CodeSize); + } + + void JitCompilerRV64::enableAll() { + setPagesRWX(entryDataInit, ExecutableSize); + } + + void JitCompilerRV64::enableWriting() { + setPagesRW(entryDataInit, ExecutableSize); + } + + void JitCompilerRV64::enableExecution() { + setPagesRX(entryDataInit, ExecutableSize); + } + + void JitCompilerRV64::generateProgram(Program& prog, ProgramConfiguration& pcfg) { + emitProgramPrefix(state, prog, pcfg); + int32_t fixPos = state.codePos; + state.emit(codeDataRead, sizeDataRead); + //xor x8, x{readReg2}, x{readReg3} + state.emitAt(fixPos, rvi(rv64::XOR, Tmp1Reg, regR(pcfg.readReg2), regR(pcfg.readReg3))); + emitProgramSuffix(state, pcfg); + clearCache(state); + } + + void JitCompilerRV64::generateProgramLight(Program& prog, ProgramConfiguration& pcfg, uint32_t datasetOffset) { + emitProgramPrefix(state, prog, pcfg); + int32_t fixPos = state.codePos; + state.emit(codeDataReadLight, sizeDataReadLight); + //xor x8, x{readReg2}, x{readReg3} + state.emitAt(fixPos, rvi(rv64::XOR, Tmp1Reg, regR(pcfg.readReg2), regR(pcfg.readReg3))); + int32_t imm = datasetOffset / CacheLineSize; + int32_t limm = (imm << 20) >> 20; + int32_t uimm = (imm >> 12) + (limm < 0); + //lui x9, {uimm} + state.emitAt(fixPos + 4, rv64::LUI | (uimm << 12) | rvrd(Tmp2Reg)); + //addi x9, x9, {limm} + state.emitAt(fixPos + 8, rvi(rv64::ADDI, Tmp2Reg, Tmp2Reg, limm)); + fixPos += offsetFixLoopCall; + //jal x1, SuperscalarHash + emitJump(state, ReturnReg, fixPos, SuperScalarHashOffset); + emitProgramSuffix(state, pcfg); + clearCache(state); + } + + void JitCompilerRV64::generateSuperscalarHash(SuperscalarProgram programs[RANDOMX_CACHE_ACCESSES], std::vector& reciprocalCache) { + state.codePos = SuperScalarHashOffset; + state.rcpCount = 0; + state.emit(codeSshInit, sizeSshInit); + for (unsigned j = 0; j < RANDOMX_CACHE_ACCESSES; ++j) { + SuperscalarProgram& prog = programs[j]; + for (unsigned i = 0; i < prog.getSize(); ++i) { + Instruction instr = prog(i); + generateSuperscalarCode(state, instr, reciprocalCache); + } + state.emit(codeSshLoad, sizeSshLoad); + if (j < RANDOMX_CACHE_ACCESSES - 1) { + int32_t fixPos = state.codePos; + state.emit(codeSshPrefetch, sizeSshPrefetch); + //and x7, x{addrReg}, x7 + state.emitAt(fixPos, rvi(rv64::AND, SuperscalarReg, regSS(prog.getAddressRegister()), SuperscalarReg)); + } + } + state.emit(rvc(rv64::C_RET, 0, 0)); + clearCache(state); + } + + static void v1_IADD_RS(HANDLER_ARGS) { + state.registerUsage[isn.dst] = i; + int shift = isn.getModShift(); + if (shift == 0) { + //c.add x{dst}, x{src} + state.emit(rvc(rv64::C_ADD, regR(isn.dst), regR(isn.src))); + } + else { +#ifdef __riscv_zba + //sh{1,2,3}add x{dst}, x{src}, x{dst} + state.emit(rv64::SHXADD | rvrs2(regR(isn.dst)) | rvrs1(regR(isn.src)) | (shift << 13) | rvrd(regR(isn.dst))); +#else + //slli x8, x{src}, {shift} + state.emit(rvi(rv64::SLLI, Tmp1Reg, regR(isn.src), shift)); + //c.add x{dst}, x8 + state.emit(rvc(rv64::C_ADD, regR(isn.dst), Tmp1Reg)); +#endif + } + if (isn.dst == RegisterNeedsDisplacement) { + int32_t imm = unsigned32ToSigned2sCompl(isn.getImm32()); + //x{dst} = x{dst} + {imm} + emitImm32(state, imm, regR(isn.dst), regR(isn.dst), Tmp1Reg); + } + } + + static void v1_IADD_M(HANDLER_ARGS) { + state.registerUsage[isn.dst] = i; + loadFromScratchpad(state, isn); + //c.add x{dst}, x8 + state.emit(rvc(rv64::C_ADD, regR(isn.dst), Tmp1Reg)); + } + + static void v1_ISUB_R(HANDLER_ARGS) { + state.registerUsage[isn.dst] = i; + if (isn.src != isn.dst) { + //sub x{dst}, x{dst}, x{src} + state.emit(rvi(rv64::SUB, regR(isn.dst), regR(isn.dst), regR(isn.src))); + } + else { + int32_t imm = unsigned32ToSigned2sCompl(-isn.getImm32()); //convert to add + //x{dst} = x{dst} + {-imm} + emitImm32(state, imm, regR(isn.dst), regR(isn.dst), Tmp1Reg); + } + } + + static void v1_ISUB_M(HANDLER_ARGS) { + state.registerUsage[isn.dst] = i; + loadFromScratchpad(state, isn); + //sub x{dst}, x{dst}, x8 + state.emit(rvi(rv64::SUB, regR(isn.dst), regR(isn.dst), Tmp1Reg)); + } + + static void v1_IMUL_R(HANDLER_ARGS) { + state.registerUsage[isn.dst] = i; + if (isn.src != isn.dst) { + //mul x{dst}, x{dst}, x{src} + state.emit(rvi(rv64::MUL, regR(isn.dst), regR(isn.dst), regR(isn.src))); + } + else { + int32_t imm = unsigned32ToSigned2sCompl(isn.getImm32()); + //x8 = {imm} + emitImm32(state, imm, Tmp1Reg); + //mul x{dst}, x{dst}, x8 + state.emit(rvi(rv64::MUL, regR(isn.dst), regR(isn.dst), Tmp1Reg)); + } + } + + static void v1_IMUL_M(HANDLER_ARGS) { + state.registerUsage[isn.dst] = i; + loadFromScratchpad(state, isn); + //mul x{dst}, x{dst}, x8 + state.emit(rvi(rv64::MUL, regR(isn.dst), regR(isn.dst), Tmp1Reg)); + } + + static void v1_IMULH_R(HANDLER_ARGS) { + state.registerUsage[isn.dst] = i; + //mulhu x{dst}, x{dst}, x{src} + state.emit(rvi(rv64::MULHU, regR(isn.dst), regR(isn.dst), regR(isn.src))); + } + + static void v1_IMULH_M(HANDLER_ARGS) { + state.registerUsage[isn.dst] = i; + loadFromScratchpad(state, isn); + //mulhu x{dst}, x{dst}, x8 + state.emit(rvi(rv64::MULHU, regR(isn.dst), regR(isn.dst), Tmp1Reg)); + } + + static void v1_ISMULH_R(HANDLER_ARGS) { + state.registerUsage[isn.dst] = i; + //mulh x{dst}, x{dst}, x{src} + state.emit(rvi(rv64::MULH, regR(isn.dst), regR(isn.dst), regR(isn.src))); + } + + static void v1_ISMULH_M(HANDLER_ARGS) { + state.registerUsage[isn.dst] = i; + loadFromScratchpad(state, isn); + //mulh x{dst}, x{dst}, x8 + state.emit(rvi(rv64::MULH, regR(isn.dst), regR(isn.dst), Tmp1Reg)); + } + + static void v1_IMUL_RCP(HANDLER_ARGS) { + uint64_t divisor = isn.getImm32(); + if (!isZeroOrPowerOf2(divisor)) { + state.registerUsage[isn.dst] = i; + if (state.rcpCount < 4) { + //mul x{dst}, x{dst}, x{rcp} + state.emit(rvi(rv64::MUL, regR(isn.dst), regR(isn.dst), regRcp(state.rcpCount))); + } + else if (state.rcpCount < 10) { + //fmv.x.d x8, f{rcp} + state.emit(rvi(rv64::FMV_X_D, Tmp1Reg, regRcpF(state.rcpCount))); + //mul x{dst}, x{dst}, x8 + state.emit(rvi(rv64::MUL, regR(isn.dst), regR(isn.dst), Tmp1Reg)); + } + else { + int32_t offset = RcpLiteralsOffset + state.rcpCount * 8; + //ld x8, {offset}(x3) + state.emit(rvi(rv64::LD, Tmp1Reg, LiteralPoolReg, offset)); + //mul x{dst}, x{dst}, x8 + state.emit(rvi(rv64::MUL, regR(isn.dst), regR(isn.dst), Tmp1Reg)); + } + emitRcpLiteral1(state, randomx_reciprocal_fast(divisor)); + } + } + + static void v1_INEG_R(HANDLER_ARGS) { + state.registerUsage[isn.dst] = i; + //sub x{dst}, x0, x{dst} + state.emit(rvi(rv64::SUB, regR(isn.dst), 0, regR(isn.dst))); + } + + static void v1_IXOR_R(HANDLER_ARGS) { + state.registerUsage[isn.dst] = i; + if (isn.src != isn.dst) { + //xor x{dst}, x{dst}, x{src} + state.emit(rvi(rv64::XOR, regR(isn.dst), regR(isn.dst), regR(isn.src))); + } + else { + int32_t imm = unsigned32ToSigned2sCompl(isn.getImm32()); + //x8 = {imm} + emitImm32(state, imm, Tmp1Reg); + //xor x{dst}, x{dst}, x8 + state.emit(rvi(rv64::XOR, regR(isn.dst), regR(isn.dst), Tmp1Reg)); + } + } + + static void v1_IXOR_M(HANDLER_ARGS) { + state.registerUsage[isn.dst] = i; + loadFromScratchpad(state, isn); + //xor x{dst}, x{dst}, x8 + state.emit(rvi(rv64::XOR, regR(isn.dst), regR(isn.dst), Tmp1Reg)); + } + + static void v1_IROR_R(HANDLER_ARGS) { + state.registerUsage[isn.dst] = i; +#ifdef __riscv_zbb + if (isn.src != isn.dst) { + //ror x{dst}, x{dst}, x{src} + state.emit(rvi(rv64::ROR, regR(isn.dst), regR(isn.dst), regR(isn.src))); + } + else { + int32_t imm = isn.getImm32() & 63; + //rori x{dst}, x{dst}, {imm} + state.emit(rvi(rv64::RORI, regR(isn.dst), regR(isn.dst), imm)); + } +#else + if (isn.src != isn.dst) { + //sub x8, x0, x{src} + state.emit(rvi(rv64::SUB, Tmp1Reg, 0, regR(isn.src))); + //srl x9, x{dst}, x{src} + state.emit(rvi(rv64::SRL, Tmp2Reg, regR(isn.dst), regR(isn.src))); + //sll x{dst}, x{dst}, x8 + state.emit(rvi(rv64::SLL, regR(isn.dst), regR(isn.dst), Tmp1Reg)); + //or x{dst}, x{dst}, x9 + state.emit(rvi(rv64::OR, regR(isn.dst), regR(isn.dst), Tmp2Reg)); + } + else { + int32_t immr = isn.getImm32() & 63; + int32_t imml = -immr & 63; + int32_t imml5 = imml >> 5; + int32_t imml40 = imml & 31; + //srli x8, x{dst}, {immr} + state.emit(rvi(rv64::SRLI, Tmp1Reg, regR(isn.dst), immr)); + //c.slli x{dst}, {imml} + state.emit(rvc(rv64::C_SLLI, imml5, regR(isn.dst), imml40)); + //or x{dst}, x{dst}, x8 + state.emit(rvi(rv64::OR, regR(isn.dst), regR(isn.dst), Tmp1Reg)); + } +#endif + } + + static void v1_IROL_R(HANDLER_ARGS) { + state.registerUsage[isn.dst] = i; +#ifdef __riscv_zbb + if (isn.src != isn.dst) { + //rol x{dst}, x{dst}, x{src} + state.emit(rvi(rv64::ROL, regR(isn.dst), regR(isn.dst), regR(isn.src))); + } + else { + int32_t imm = -isn.getImm32() & 63; + //rori x{dst}, x{dst}, {imm} + state.emit(rvi(rv64::RORI, regR(isn.dst), regR(isn.dst), imm)); + } +#else + if (isn.src != isn.dst) { + //sub x8, x0, x{src} + state.emit(rvi(rv64::SUB, Tmp1Reg, 0, regR(isn.src))); + //sll x9, x{dst}, x{src} + state.emit(rvi(rv64::SLL, Tmp2Reg, regR(isn.dst), regR(isn.src))); + //srl x{dst}, x{dst}, x8 + state.emit(rvi(rv64::SRL, regR(isn.dst), regR(isn.dst), Tmp1Reg)); + //or x{dst}, x{dst}, x9 + state.emit(rvi(rv64::OR, regR(isn.dst), regR(isn.dst), Tmp2Reg)); + } + else { + int32_t imml = isn.getImm32() & 63; + int32_t immr = -imml & 63; + int32_t imml5 = imml >> 5; + int32_t imml40 = imml & 31; + //srli x8, x{dst}, {immr} + state.emit(rvi(rv64::SRLI, Tmp1Reg, regR(isn.dst), immr)); + //c.slli x{dst}, {imml} + state.emit(rvc(rv64::C_SLLI, imml5, regR(isn.dst), imml40)); + //or x{dst}, x{dst}, x8 + state.emit(rvi(rv64::OR, regR(isn.dst), regR(isn.dst), Tmp1Reg)); + } +#endif + } + + static void v1_ISWAP_R(HANDLER_ARGS) { + if (isn.src != isn.dst) { + state.registerUsage[isn.dst] = i; + state.registerUsage[isn.src] = i; + //c.mv x8, x{dst} + state.emit(rvc(rv64::C_MV, Tmp1Reg, regR(isn.dst))); + //c.mv x{dst}, x{src} + state.emit(rvc(rv64::C_MV, regR(isn.dst), regR(isn.src))); + //c.mv x{src}, x8 + state.emit(rvc(rv64::C_MV, regR(isn.src), Tmp1Reg)); + } + } + + static void v1_FSWAP_R(HANDLER_ARGS) { + //fmv.d f24, f{dst_lo} + state.emit(rvi(rv64::FMV_D, Tmp1RegF, regLoF(isn.dst), regLoF(isn.dst))); + //fmv.d f{dst_lo}, f{dst_hi} + state.emit(rvi(rv64::FMV_D, regLoF(isn.dst), regHiF(isn.dst), regHiF(isn.dst))); + //fmv.d f{dst_hi}, f24 + state.emit(rvi(rv64::FMV_D, regHiF(isn.dst), Tmp1RegF, Tmp1RegF)); + } + + static void v1_FADD_R(HANDLER_ARGS) { + isn.dst %= RegisterCountFlt; + isn.src %= RegisterCountFlt; + //fadd.d f{dst_lo}, f{dst_lo}, f{src_lo} + state.emit(rvi(rv64::FADD_D, regLoF(isn.dst), regLoF(isn.dst), regLoA(isn.src))); + //fadd.d f{dst_hi}, f{dst_hi}, f{src_hi} + state.emit(rvi(rv64::FADD_D, regHiF(isn.dst), regHiF(isn.dst), regHiA(isn.src))); + } + + static void v1_FADD_M(HANDLER_ARGS) { + isn.dst %= RegisterCountFlt; + //x9 = mem + genAddressReg(state, isn); + //lw x8, 0(x9) + state.emit(rvc(rv64::C_LW, Tmp2Reg + OffsetXC, Tmp1Reg + OffsetXC)); + //lw x9, 4(x9) + state.emit(rvc(rv64::C_LW, Tmp2Reg + OffsetXC, 16 + Tmp2Reg + OffsetXC)); + //fcvt.d.w f24, x8 + state.emit(rvi(rv64::FCVT_D_W, Tmp1RegF, Tmp1Reg)); + //fcvt.d.w f25, x9 + state.emit(rvi(rv64::FCVT_D_W, Tmp2RegF, Tmp2Reg)); + //fadd.d f{dst_lo}, f{dst_lo}, f24 + state.emit(rvi(rv64::FADD_D, regLoF(isn.dst), regLoF(isn.dst), Tmp1RegF)); + //fadd.d f{dst_hi}, f{dst_hi}, f25 + state.emit(rvi(rv64::FADD_D, regHiF(isn.dst), regHiF(isn.dst), Tmp2RegF)); + } + + static void v1_FSUB_R(HANDLER_ARGS) { + isn.dst %= RegisterCountFlt; + isn.src %= RegisterCountFlt; + //fsub.d f{dst_lo}, f{dst_lo}, f{src_lo} + state.emit(rvi(rv64::FSUB_D, regLoF(isn.dst), regLoF(isn.dst), regLoA(isn.src))); + //fsub.d f{dst_hi}, f{dst_hi}, f{src_hi} + state.emit(rvi(rv64::FSUB_D, regHiF(isn.dst), regHiF(isn.dst), regHiA(isn.src))); + } + + static void v1_FSUB_M(HANDLER_ARGS) { + isn.dst %= RegisterCountFlt; + //x9 = mem + genAddressReg(state, isn); + //c.lw x8, 0(x9) + state.emit(rvc(rv64::C_LW, Tmp2Reg + OffsetXC, Tmp1Reg + OffsetXC)); + //c.lw x9, 4(x9) + state.emit(rvc(rv64::C_LW, Tmp2Reg + OffsetXC, 16 + Tmp2Reg + OffsetXC)); + //fcvt.d.w f24, x8 + state.emit(rvi(rv64::FCVT_D_W, Tmp1RegF, Tmp1Reg)); + //fcvt.d.w f25, x9 + state.emit(rvi(rv64::FCVT_D_W, Tmp2RegF, Tmp2Reg)); + //fsub.d f{dst_lo}, f{dst_lo}, f24 + state.emit(rvi(rv64::FSUB_D, regLoF(isn.dst), regLoF(isn.dst), Tmp1RegF)); + //fsub.d f{dst_hi}, f{dst_hi}, f25 + state.emit(rvi(rv64::FSUB_D, regHiF(isn.dst), regHiF(isn.dst), Tmp2RegF)); + } + + static void v1_FSCAL_R(HANDLER_ARGS) { + isn.dst %= RegisterCountFlt; + //fmv.x.d x8, f{dst_lo} + state.emit(rvi(rv64::FMV_X_D, Tmp1Reg, regLoF(isn.dst))); + //fmv.x.d x9, f{dst_hi} + state.emit(rvi(rv64::FMV_X_D, Tmp2Reg, regHiF(isn.dst))); + //c.xor x8, x12 + state.emit(rvc(rv64::C_XOR, Tmp1Reg + OffsetXC, MaskFscalReg + OffsetXC)); + //c.xor x9, x12 + state.emit(rvc(rv64::C_XOR, Tmp2Reg + OffsetXC, MaskFscalReg + OffsetXC)); + //fmv.d.x f{dst_lo}, x8 + state.emit(rvi(rv64::FMV_D_X, regLoF(isn.dst), Tmp1Reg)); + //fmv.d.x f{dst_hi}, x9 + state.emit(rvi(rv64::FMV_D_X, regHiF(isn.dst), Tmp2Reg)); + } + + static void v1_FMUL_R(HANDLER_ARGS) { + isn.dst %= RegisterCountFlt; + isn.src %= RegisterCountFlt; + //fmul.d f{dst_lo}, f{dst_lo}, f{src_lo} + state.emit(rvi(rv64::FMUL_D, regLoE(isn.dst), regLoE(isn.dst), regLoA(isn.src))); + //fmul.d f{dst_hi}, f{dst_hi}, f{src_hi} + state.emit(rvi(rv64::FMUL_D, regHiE(isn.dst), regHiE(isn.dst), regHiA(isn.src))); + } + + static void v1_FDIV_M(HANDLER_ARGS) { + isn.dst %= RegisterCountFlt; + //x9 = mem + genAddressReg(state, isn); + //lw x8, 0(x9) + state.emit(rvc(rv64::C_LW, Tmp2Reg + OffsetXC, Tmp1Reg + OffsetXC)); + //lw x9, 4(x9) + state.emit(rvc(rv64::C_LW, Tmp2Reg + OffsetXC, 16 + Tmp2Reg + OffsetXC)); + //fcvt.d.w f24, x8 + state.emit(rvi(rv64::FCVT_D_W, Tmp1RegF, Tmp1Reg)); + //fcvt.d.w f25, x9 + state.emit(rvi(rv64::FCVT_D_W, Tmp2RegF, Tmp2Reg)); + //fmv.x.d x8, f24 + state.emit(rvi(rv64::FMV_X_D, Tmp1Reg, Tmp1RegF)); + //fmv.x.d x9, f25 + state.emit(rvi(rv64::FMV_X_D, Tmp2Reg, Tmp2RegF)); + //c.and x8, x13 + state.emit(rvc(rv64::C_AND, Tmp1Reg + OffsetXC, MaskEclear + OffsetXC)); + //c.and x9, x13 + state.emit(rvc(rv64::C_AND, Tmp2Reg + OffsetXC, MaskEclear + OffsetXC)); + //c.or x8, x14 + state.emit(rvc(rv64::C_OR, Tmp1Reg + OffsetXC, MaskEsetLo + OffsetXC)); + //c.or x9, x15 + state.emit(rvc(rv64::C_OR, Tmp2Reg + OffsetXC, MaskEsetHi + OffsetXC)); + //fmv.d.x f24, x8 + state.emit(rvi(rv64::FMV_D_X, Tmp1RegF, Tmp1Reg)); + //fmv.d.x f25, x9 + state.emit(rvi(rv64::FMV_D_X, Tmp2RegF, Tmp2Reg)); + //fdiv.d f{dst_lo}, f{dst_lo}, f24 + state.emit(rvi(rv64::FDIV_D, regLoE(isn.dst), regLoE(isn.dst), Tmp1RegF)); + //fdiv.d f{dst_hi}, f{dst_hi}, f25 + state.emit(rvi(rv64::FDIV_D, regHiE(isn.dst), regHiE(isn.dst), Tmp2RegF)); + } + + static void v1_FSQRT_R(HANDLER_ARGS) { + isn.dst %= RegisterCountFlt; + //fsqrt.d f{dst_lo}, f{dst_lo} + state.emit(rvi(rv64::FSQRT_D, regLoE(isn.dst), regLoE(isn.dst))); + //fsqrt.d f{dst_hi}, f{dst_hi} + state.emit(rvi(rv64::FSQRT_D, regHiE(isn.dst), regHiE(isn.dst))); + } + + static void v1_CBRANCH(HANDLER_ARGS) { + int reg = isn.dst; + int target = state.registerUsage[reg] + 1; + int shift = isn.getModCond() + ConditionOffset; + int32_t imm = unsigned32ToSigned2sCompl(isn.getImm32()); + imm |= (1UL << shift); + if (ConditionOffset > 0 || shift > 0) + imm &= ~(1UL << (shift - 1)); + //x8 = branchMask + emitImm32(state, (int32_t)ConditionMask << shift, Tmp1Reg); + //x{dst} += {imm} + emitImm32(state, imm, regR(isn.dst), regR(isn.dst), Tmp2Reg); + //and x8, x8, x{dst} + state.emit(rvi(rv64::AND, Tmp1Reg, Tmp1Reg, regR(isn.dst))); + int32_t targetPos = state.instructionOffsets[target]; + int offset = targetPos - state.codePos; + if (offset >= -256) { //C.BEQZ only has a range of 256B + //c.beqz x8, {offset} + int imm8 = 1; //sign bit is always 1 + int imm21 = offset & 6; //offset[2:1] + int imm5 = (offset >> 5) & 1; //offset[5] + int imm43 = offset & 24; //offset[4:3] + int imm76 = (offset >> 3) & 24; //offset[7:6] + state.emit(rvc(rv64::C_BEQZ, imm8, imm43 + (Tmp1Reg + OffsetXC), imm76 + imm21 + imm5)); + } + else if (offset >= -4096) { //BEQ only has a range of 4KB + //beq x8, x0, offset + int imm12 = 1 << 11; //sign bit is always 1 + int imm105 = offset & 2016; //offset[10:5] + int imm41 = offset & 30; //offset[4:1] + int imm11 = (offset >> 11) & 1; //offset[11] + state.emit(rvi(rv64::BEQ, imm41 + imm11, Tmp1Reg, imm12 + imm105)); + } + else { + //c.bnez x8, +6 + state.emit(rvc(rv64::C_BNEZ, Tmp1Reg + OffsetXC, 6)); + //j targetPos + emitJump(state, 0, state.codePos, targetPos); + state.codePos += 4; + } + //mark all registers as used + for (unsigned j = 0; j < RegistersCount; ++j) { + state.registerUsage[j] = i; + } + } + + static void v1_CFROUND(HANDLER_ARGS) { + int32_t imm = (isn.getImm32() - 2) & 63; //-2 to avoid a later left shift to multiply by 4 + if (imm != 0) { +#ifdef __riscv_zbb + //rori x8, x{src}, {imm} + state.emit(rvi(rv64::RORI, Tmp1Reg, regR(isn.src), imm)); +#else + int32_t imml = -imm & 63; + //srli x8, x{src}, {imm} + state.emit(rvi(rv64::SRLI, Tmp1Reg, regR(isn.src), imm)); + //slli x9, x{src}, {imml} + state.emit(rvi(rv64::SLLI, Tmp2Reg, regR(isn.src), imml)); + //c.or x8, x9 + state.emit(rvc(rv64::C_OR, Tmp1Reg + OffsetXC, Tmp2Reg + OffsetXC)); +#endif + //c.andi x8, 12 + state.emit(rvc(rv64::C_ANDI, Tmp1Reg + OffsetXC, 12)); + } + else { + //and x8, x{src}, 12 + state.emit(rvi(rv64::ANDI, Tmp1Reg, regR(isn.src), 12)); + } + //c.add x8, x3 + state.emit(rvc(rv64::C_ADD, Tmp1Reg, LiteralPoolReg)); + //c.lw x8, 64(x8) + state.emit(rvc(rv64::C_LW, Tmp1Reg + OffsetXC, 8 + Tmp1Reg + OffsetXC)); + //fsrm x8 + state.emit(rvi(rv64::FSRM, 0, Tmp1Reg, 0)); + } + + static void v1_ISTORE(HANDLER_ARGS) { + genAddressRegDst(state, isn); + //sd x{src}, 0(x9) + state.emit(rvi(rv64::SD, 0, Tmp2Reg, regR(isn.src))); + } + + static void v1_NOP(HANDLER_ARGS) { + } +} + +#include "instruction_weights.hpp" + +namespace { + +#define INST_HANDLE1(x) REPN(&randomx::v1_##x, WT(x)) +#define INST_HANDLE2(x) REPN(&randomx::v2_##x, WT(x)) + + InstructionHandler* opcodeMap1[256] = { + INST_HANDLE1(IADD_RS) + INST_HANDLE1(IADD_M) + INST_HANDLE1(ISUB_R) + INST_HANDLE1(ISUB_M) + INST_HANDLE1(IMUL_R) + INST_HANDLE1(IMUL_M) + INST_HANDLE1(IMULH_R) + INST_HANDLE1(IMULH_M) + INST_HANDLE1(ISMULH_R) + INST_HANDLE1(ISMULH_M) + INST_HANDLE1(IMUL_RCP) + INST_HANDLE1(INEG_R) + INST_HANDLE1(IXOR_R) + INST_HANDLE1(IXOR_M) + INST_HANDLE1(IROR_R) + INST_HANDLE1(IROL_R) + INST_HANDLE1(ISWAP_R) + INST_HANDLE1(FSWAP_R) + INST_HANDLE1(FADD_R) + INST_HANDLE1(FADD_M) + INST_HANDLE1(FSUB_R) + INST_HANDLE1(FSUB_M) + INST_HANDLE1(FSCAL_R) + INST_HANDLE1(FMUL_R) + INST_HANDLE1(FDIV_M) + INST_HANDLE1(FSQRT_R) + INST_HANDLE1(CBRANCH) + INST_HANDLE1(CFROUND) + INST_HANDLE1(ISTORE) + INST_HANDLE1(NOP) + }; +} \ No newline at end of file diff --git a/src/jit_compiler_rv64.hpp b/src/jit_compiler_rv64.hpp new file mode 100644 index 0000000..aaae57e --- /dev/null +++ b/src/jit_compiler_rv64.hpp @@ -0,0 +1,69 @@ +/* +Copyright (c) 2023 tevador + +All rights reserved. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are met: + * Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + * Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in the + documentation and/or other materials provided with the distribution. + * Neither the name of the copyright holder nor the + names of its contributors may be used to endorse or promote products + derived from this software without specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND +ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED +WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE +DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE +FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR +SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER +CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +*/ + +#pragma once + +#include +#include +#include +#include "jit_compiler.hpp" + +namespace randomx { + + class Program; + struct ProgramConfiguration; + class SuperscalarProgram; + class Instruction; + + class JitCompilerRV64 { + public: + JitCompilerRV64(); + ~JitCompilerRV64(); + void generateProgram(Program&, ProgramConfiguration&); + void generateProgramLight(Program&, ProgramConfiguration&, uint32_t); + void generateSuperscalarHash(SuperscalarProgram programs[RANDOMX_CACHE_ACCESSES], std::vector&); + void generateDatasetInitCode() {} + ProgramFunc* getProgramFunc() { + return (ProgramFunc*)entryProgram; + } + DatasetInitFunc* getDatasetInitFunc() { + return (DatasetInitFunc*)entryDataInit; + } + uint8_t* getCode() { + return state.code; + } + size_t getCodeSize(); + void enableWriting(); + void enableExecution(); + void enableAll(); + private: + CompilerState state; + void* entryDataInit; + void* entryProgram; + }; +} diff --git a/src/jit_compiler_rv64_static.S b/src/jit_compiler_rv64_static.S new file mode 100644 index 0000000..5ecb481 --- /dev/null +++ b/src/jit_compiler_rv64_static.S @@ -0,0 +1,1235 @@ +/* +Copyright (c) 2023 tevador + +All rights reserved. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are met: + * Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + * Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in the + documentation and/or other materials provided with the distribution. + * Neither the name of the copyright holder nor the + names of its contributors may be used to endorse or promote products + derived from this software without specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND +ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED +WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE +DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE +FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR +SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER +CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +*/ + +#define DECL(x) x + +.text +.option rvc + +#include "configuration.h" + +.global DECL(randomx_riscv64_literals) +.global DECL(randomx_riscv64_literals_end) +.global DECL(randomx_riscv64_data_init) +.global DECL(randomx_riscv64_fix_data_call) +.global DECL(randomx_riscv64_prologue) +.global DECL(randomx_riscv64_loop_begin) +.global DECL(randomx_riscv64_data_read) +.global DECL(randomx_riscv64_data_read_light) +.global DECL(randomx_riscv64_fix_loop_call) +.global DECL(randomx_riscv64_spad_store) +.global DECL(randomx_riscv64_spad_store_hardaes) +.global DECL(randomx_riscv64_spad_store_softaes) +.global DECL(randomx_riscv64_loop_end) +.global DECL(randomx_riscv64_fix_continue_loop) +.global DECL(randomx_riscv64_epilogue) +.global DECL(randomx_riscv64_softaes) +.global DECL(randomx_riscv64_program_end) +.global DECL(randomx_riscv64_ssh_init) +.global DECL(randomx_riscv64_ssh_load) +.global DECL(randomx_riscv64_ssh_prefetch) +.global DECL(randomx_riscv64_ssh_end) + +/* The literal pool can fit at most 494 IMUL_RCP literals */ +#if RANDOMX_PROGRAM_SIZE > 494 + #error RANDOMX_PROGRAM_SIZE larger than 494 is not supported. +#endif + +#define RANDOMX_CACHE_MASK (RANDOMX_ARGON_MEMORY*16-1) + +/* shared literal pool: 4 KB */ + /* space for 256 IMUL_RCP literals -2048 */ + /* filled by JIT compiler */ +DECL(randomx_riscv64_literals): +literal_pool: + /* SuperscalarHash constants +0 */ + .dword 6364136223846793005 + .dword 9298411001130361340 + .dword 12065312585734608966 + .dword 9306329213124626780 + .dword 5281919268842080866 + .dword 10536153434571861004 + .dword 3398623926847679864 + .dword 9549104520008361294 + /* CFROUND lookup table +64 */ + .word 0x00000000 /* RTN */ + .word 0x00000002 /* RDN */ + .word 0x00000003 /* RUP */ + .word 0x00000001 /* RTZ */ + /* mask literals +80,+84,+88,+92,+96,+104 */ + .word (RANDOMX_SCRATCHPAD_L1-8) + .word (RANDOMX_SCRATCHPAD_L2-8) + .word (RANDOMX_SCRATCHPAD_L3-64) + .word (RANDOMX_DATASET_BASE_SIZE-64) + .dword 0x80f0000000000000 + .dword 0x00ffffffffffffff +DECL(randomx_riscv64_literals_end): + /* E reg. set masks, +112,+120 */ + .dword 0 /* filled by JIT compiler */ + .dword 0 /* filled by JIT compiler */ + /* soft AES table addresses, +128,+136 */ + .dword 0 /* filled by JIT compiler */ + .dword 0 /* filled by JIT compiler */ + /* space for 238 IMUL_RCP literals, +144 */ + .fill 238,8,0 /* filled by JIT compiler */ + +/* ================================= */ +/* Dataset init function entry point */ +/* ================================= */ + +/* Register allocation: + ---------------------- + x0 -> zero + x1 -> temp/return address + x2 -> stack pointer (sp) + x3 -> literal pool pointer + x5 -> dataset pointer + x6 -> cache pointer + x7 -> temp/itemNumber + x8-x15 -> SuperscalarHash registers + x16 -> itemNumber + x17 -> endItem + x28-x31 -> temp + + Stack layout: + ------------------------ + sp+ + 0 -> return address + 8 -> saved x3 + 16 -> saved x8-x9 + 32 -> caller stack +*/ +DECL(randomx_riscv64_data_init): + addi sp, sp, -32 + /* dataset ptr */ + mv x5, x11 + /* cache->memory */ + ld x6, 0(x10) + /* callee saved registers */ + sd x1, 0(sp) + sd x3, 8(sp) + /* literal pool */ + lla x3, literal_pool + sd x8, 16(sp) + sd x9, 24(sp) + /* startItem */ + mv x16, x12 + /* endItem */ + mv x17, x13 +init_item: + mv x7, x16 +DECL(randomx_riscv64_fix_data_call): + jal superscalar_hash /* JIT compiler will adjust the offset */ + sd x8, 0(x5) + sd x9, 8(x5) + sd x10, 16(x5) + sd x11, 24(x5) + sd x12, 32(x5) + sd x13, 40(x5) + sd x14, 48(x5) + sd x15, 56(x5) + addi x5, x5, 64 + addi x16, x16, 1 + bltu x16, x17, init_item + ld x1, 0(sp) + ld x3, 8(sp) + ld x8, 16(sp) + ld x9, 24(sp) + addi sp, sp, 32 + ret + +/* ====================================== */ +/* Program execution function entry point */ +/* ====================================== */ + +/* Register allocation: + ---------------------- + x0 -> zero + x1 -> temp/scratchpad L3 mask + x2 -> stack pointer (sp) + x3 -> literal pool pointer + x5 -> scratchpad pointer + x6 -> dataset/cache pointer + x7 -> temp/next dataset access + x8 -> temp + x9 -> temp + x10 -> scratchpad L1 mask (0x0000000000003ff8) + x11 -> scratchpad L2 mask (0x000000000003fff8) + x12 -> FSCAL_R mask (0x80f0000000000000) + x13 -> E reg. clear mask (0x00ffffffffffffff) + x14 -> E reg. set mask (0x3*00000000******) + x15 -> E reg. set mask (0x3*00000000******) + x16-x23 -> VM registers "r0"-"r7" + x24 -> iteration counter "ic" + x25 -> VM registers "mx", "ma" + x26 -> spAddr0 + x27 -> spAddr1 + x28-x31 -> temp/literals for IMUL_RCP (4x) + + (Note: We avoid using x4 because it breaks debugging with gdb.) + + f0-f7 -> VM registers "f0"-"f3" + f8-f15 -> VM registers "e0"-"e3" + f16-f23 -> VM registers "a0"-"a3" + f24-f25 -> temp + f26-f31 -> literals for IMUL_RCP (6x) + + Stack layout: + ------------------------ + sp+ + 0 -> return address + 8 -> register file ptr + 16 -> saved x3-x4 + 32 -> saved x8-x9 + 48 -> saved x18-x27 + 128 -> saved f8-f9 + 144 -> saved f18-f27 + 224 -> caller stack +*/ + +DECL(randomx_riscv64_prologue): + addi sp, sp, -224 + /* scratchpad pointer */ + mv x5, x12 + /* register file pointer */ + sd x10, 8(sp) + /* callee saved registers */ + sd x3, 16(sp) + sd x8, 32(sp) + sd x9, 40(sp) + sd x18, 48(sp) + sd x19, 56(sp) + sd x20, 64(sp) + sd x21, 72(sp) + sd x22, 80(sp) + sd x23, 88(sp) + sd x24, 96(sp) + sd x25, 104(sp) + sd x26, 112(sp) + sd x27, 120(sp) + fsd f8, 128(sp) + fsd f9, 136(sp) + fsd f18, 144(sp) + fsd f19, 152(sp) + fsd f20, 160(sp) + fsd f21, 168(sp) + fsd f22, 176(sp) + fsd f23, 184(sp) + fsd f24, 192(sp) + fsd f25, 200(sp) + fsd f26, 208(sp) + fsd f27, 216(sp) + /* iteration counter */ + mv x24, x13 + /* return address */ + sd x1, 0(sp) + /* literal pool */ + lla x3, literal_pool + /* load (ma, mx) */ + ld x25, 0(x11) + /* dataset ptr */ + ld x6, 8(x11) + /* load dataset mask */ + lwu x1, 92(x3) + /* zero registers r0-r3, load a0-a1 */ + li x16, 0 + fld f16, 192(x10) + li x17, 0 + fld f17, 200(x10) + srli x7, x25, 32 /* x7 = ma */ + li x18, 0 + fld f18, 208(x10) + mv x27, x7 /* x27 = ma */ + li x19, 0 + fld f19, 216(x10) + /* set dataset read address */ + and x7, x7, x1 + add x7, x7, x6 + /* zero registers r4-r7, load a2-a3 */ + li x20, 0 + fld f20, 224(x10) + li x21, 0 + fld f21, 232(x10) + li x22, 0 + fld f22, 240(x10) + li x23, 0 + fld f23, 248(x10) + /* load L3 mask */ + lwu x1, 88(x3) + /* load scratchpad masks */ + lwu x10, 80(x3) + lwu x11, 84(x3) + /* set spAddr0, spAddr1 */ + and x26, x25, x1 + and x27, x27, x1 + add x26, x26, x5 + add x27, x27, x5 + /* align L3 mask */ + addi x1, x1, 56 + /* FSCAL, E reg. masks */ + ld x12, 96(x3) + ld x13, 104(x3) + ld x14, 112(x3) + ld x15, 120(x3) + /* IMUL_RCP literals */ + fld f26, 176(x3) + fld f27, 184(x3) + fld f28, 192(x3) + fld f29, 200(x3) + fld f30, 208(x3) + fld f31, 216(x3) + +.balign 4 +DECL(randomx_riscv64_loop_begin): +loop_begin: + /* mix integer registers */ + ld x8, 0(x26) + ld x9, 8(x26) + ld x30, 16(x26) + ld x31, 24(x26) + xor x16, x16, x8 + ld x8, 32(x26) + xor x17, x17, x9 + ld x9, 40(x26) + xor x18, x18, x30 + ld x30, 48(x26) + xor x19, x19, x31 + ld x31, 56(x26) + xor x20, x20, x8 + lw x8, 0(x27) + xor x21, x21, x9 + lw x9, 4(x27) + xor x22, x22, x30 + lw x30, 8(x27) + xor x23, x23, x31 + lw x31, 12(x27) + /* load F registers */ + fcvt.d.w f0, x8 + lw x8, 16(x27) + fcvt.d.w f1, x9 + lw x9, 20(x27) + fcvt.d.w f2, x30 + lw x30, 24(x27) + fcvt.d.w f3, x31 + lw x31, 28(x27) + fcvt.d.w f4, x8 + lw x8, 32(x27) + fcvt.d.w f5, x9 + lw x9, 36(x27) + fcvt.d.w f6, x30 + lw x30, 40(x27) + fcvt.d.w f7, x31 + lw x31, 44(x27) + /* load E registers */ + fcvt.d.w f8, x8 + lw x8, 48(x27) + fcvt.d.w f9, x9 + lw x9, 52(x27) + fcvt.d.w f10, x30 + lw x30, 56(x27) + fcvt.d.w f11, x31 + lw x31, 60(x27) + fcvt.d.w f12, x8 + fmv.x.d x8, f8 + fcvt.d.w f13, x9 + fmv.x.d x9, f9 + fcvt.d.w f14, x30 + fmv.x.d x30, f10 + fcvt.d.w f15, x31 + fmv.x.d x31, f11 + and x8, x8, x13 + and x9, x9, x13 + or x8, x8, x14 + or x9, x9, x15 + and x30, x30, x13 + and x31, x31, x13 + or x30, x30, x14 + or x31, x31, x15 + fmv.d.x f8, x8 + fmv.d.x f9, x9 + fmv.d.x f10, x30 + fmv.d.x f11, x31 + fmv.x.d x8, f12 + fmv.x.d x9, f13 + fmv.x.d x30, f14 + fmv.x.d x31, f15 + and x8, x8, x13 + and x9, x9, x13 + or x8, x8, x14 + or x9, x9, x15 + fmv.d.x f12, x8 + fmv.d.x f13, x9 + and x30, x30, x13 + and x31, x31, x13 + or x30, x30, x14 + or x31, x31, x15 + fmv.d.x f14, x30 + fmv.d.x f15, x31 + /* reload clobbered IMUL_RCP regs */ + ld x28, 144(x3) + ld x29, 152(x3) + ld x30, 160(x3) + ld x31, 168(x3) + +DECL(randomx_riscv64_data_read): + xor x8, x20, x22 /* JIT compiler will adjust the registers */ + /* load dataset mask */ + lwu x1, 92(x3) + /* zero-extend x8 */ +#ifdef __riscv_zba + zext.w x8, x8 +#else + slli x8, x8, 32 + srli x8, x8, 32 +#endif + /* update "mx" */ + xor x25, x25, x8 + /* read dataset and update registers */ + ld x8, 0(x7) + ld x9, 8(x7) + ld x30, 16(x7) + ld x31, 24(x7) + xor x16, x16, x8 + ld x8, 32(x7) + xor x17, x17, x9 + ld x9, 40(x7) + xor x18, x18, x30 + ld x30, 48(x7) + xor x19, x19, x31 + ld x31, 56(x7) + xor x20, x20, x8 + /* calculate the next dataset address */ + and x7, x25, x1 + xor x21, x21, x9 + add x7, x7, x6 + xor x22, x22, x30 + /* prefetch - doesn't seem to have any effect */ + /* ld x0, 0(x7) */ + xor x23, x23, x31 + /* swap mx <-> ma */ +#ifdef __riscv_zbb + rori x25, x25, 32 +#else + srli x9, x25, 32 + slli x25, x25, 32 + or x25, x25, x9 +#endif + +DECL(randomx_riscv64_data_read_light): + xor x8, x20, x22 /* JIT compiler will adjust the registers */ + /* load dataset offset */ + lui x9, 0x02000 /* JIT compiler will adjust the immediate */ + addi x9, x9, -64 + /* load dataset mask */ + lwu x1, 92(x3) + /* swap mx <-> ma */ +#ifdef __riscv_zbb + rori x25, x25, 32 +#else + srli x31, x25, 32 + slli x25, x25, 32 + or x25, x25, x31 +#endif + slli x8, x8, 32 + /* update "mx" */ + xor x25, x25, x8 + /* the next dataset item */ + and x7, x25, x1 + srli x7, x7, 6 + add x7, x7, x9 +DECL(randomx_riscv64_fix_loop_call): + jal superscalar_hash /* JIT compiler will adjust the offset */ + xor x16, x16, x8 + xor x17, x17, x9 + xor x18, x18, x10 + xor x19, x19, x11 + xor x20, x20, x12 + xor x21, x21, x13 + xor x22, x22, x14 + xor x23, x23, x15 + /* restore clobbered registers */ + lwu x10, 80(x3) + lwu x11, 84(x3) + ld x12, 96(x3) + ld x13, 104(x3) + ld x14, 112(x3) + ld x15, 120(x3) + +DECL(randomx_riscv64_spad_store): + /* store integer registers */ + sd x16, 0(x27) + sd x17, 8(x27) + sd x18, 16(x27) + sd x19, 24(x27) + sd x20, 32(x27) + sd x21, 40(x27) + sd x22, 48(x27) + sd x23, 56(x27) + /* XOR and store f0,e0 */ + fmv.x.d x8, f0 + fmv.x.d x9, f8 + fmv.x.d x30, f1 + fmv.x.d x31, f9 + xor x8, x8, x9 + xor x30, x30, x31 + sd x8, 0(x26) + fmv.d.x f0, x8 + sd x30, 8(x26) + fmv.d.x f1, x30 + /* XOR and store f1,e1 */ + fmv.x.d x8, f2 + fmv.x.d x9, f10 + fmv.x.d x30, f3 + fmv.x.d x31, f11 + xor x8, x8, x9 + xor x30, x30, x31 + sd x8, 16(x26) + fmv.d.x f2, x8 + sd x30, 24(x26) + fmv.d.x f3, x30 + /* XOR and store f2,e2 */ + fmv.x.d x8, f4 + fmv.x.d x9, f12 + fmv.x.d x30, f5 + fmv.x.d x31, f13 + xor x8, x8, x9 + xor x30, x30, x31 + sd x8, 32(x26) + fmv.d.x f4, x8 + sd x30, 40(x26) + fmv.d.x f5, x30 + /* XOR and store f3,e3 */ + fmv.x.d x8, f6 + fmv.x.d x9, f14 + fmv.x.d x30, f7 + fmv.x.d x31, f15 + xor x8, x8, x9 + xor x30, x30, x31 + sd x8, 48(x26) + fmv.d.x f6, x8 + sd x30, 56(x26) + fmv.d.x f7, x30 + +DECL(randomx_riscv64_spad_store_hardaes): + nop /* not implemented */ + +DECL(randomx_riscv64_spad_store_softaes): + /* store integer registers */ + sd x16, 0(x27) + sd x17, 8(x27) + sd x18, 16(x27) + sd x19, 24(x27) + sd x20, 32(x27) + sd x21, 40(x27) + sd x22, 48(x27) + sd x23, 56(x27) + /* process f0 with 4 AES rounds */ + fmv.x.d x8, f8 + fmv.x.d x10, f9 + fmv.x.d x30, f0 + fmv.x.d x31, f1 + jal softaes_enc + fmv.x.d x8, f10 + fmv.x.d x10, f11 + jal softaes_enc + fmv.x.d x8, f12 + fmv.x.d x10, f13 + jal softaes_enc + fmv.x.d x8, f14 + fmv.x.d x10, f15 + jal softaes_enc + sd x30, 0(x26) + fmv.d.x f0, x30 + sd x31, 8(x26) + fmv.d.x f1, x31 + /* process f1 with 4 AES rounds */ + fmv.x.d x8, f8 + fmv.x.d x10, f9 + fmv.x.d x30, f2 + fmv.x.d x31, f3 + jal softaes_dec + fmv.x.d x8, f10 + fmv.x.d x10, f11 + jal softaes_dec + fmv.x.d x8, f12 + fmv.x.d x10, f13 + jal softaes_dec + fmv.x.d x8, f14 + fmv.x.d x10, f15 + jal softaes_dec + sd x30, 16(x26) + fmv.d.x f2, x30 + sd x31, 24(x26) + fmv.d.x f3, x31 + /* process f2 with 4 AES rounds */ + fmv.x.d x8, f8 + fmv.x.d x10, f9 + fmv.x.d x30, f4 + fmv.x.d x31, f5 + jal softaes_enc + fmv.x.d x8, f10 + fmv.x.d x10, f11 + jal softaes_enc + fmv.x.d x8, f12 + fmv.x.d x10, f13 + jal softaes_enc + fmv.x.d x8, f14 + fmv.x.d x10, f15 + jal softaes_enc + sd x30, 32(x26) + fmv.d.x f4, x30 + sd x31, 40(x26) + fmv.d.x f5, x31 + /* process f3 with 4 AES rounds */ + fmv.x.d x8, f8 + fmv.x.d x10, f9 + fmv.x.d x30, f6 + fmv.x.d x31, f7 + jal softaes_dec + fmv.x.d x8, f10 + fmv.x.d x10, f11 + jal softaes_dec + fmv.x.d x8, f12 + fmv.x.d x10, f13 + jal softaes_dec + fmv.x.d x8, f14 + fmv.x.d x10, f15 + jal softaes_dec + sd x30, 48(x26) + fmv.d.x f6, x30 + sd x31, 56(x26) + fmv.d.x f7, x31 + /* restore clobbered registers */ + lwu x10, 80(x3) + lwu x11, 84(x3) + ld x12, 96(x3) + ld x13, 104(x3) + ld x14, 112(x3) + ld x15, 120(x3) + +DECL(randomx_riscv64_loop_end): + xor x26, x16, x18 /* JIT compiler will adjust the registers */ + /* load L3 mask */ + lwu x1, 88(x3) + addi x24, x24, -1 + srli x27, x26, 32 + /* set spAddr0, spAddr1 */ + and x26, x26, x1 + and x27, x27, x1 + add x26, x26, x5 + add x27, x27, x5 + /* align L3 mask */ + addi x1, x1, 56 + /* conditional branch doesn't have sufficient range */ + j condition_check +DECL(randomx_riscv64_fix_continue_loop): +continue_loop: + .word 0 /* JIT compiler will write a jump to loop_begin */ +condition_check: + bnez x24, continue_loop + +DECL(randomx_riscv64_epilogue): + /* restore callee saved registers */ + ld x10, 8(sp) + ld x1, 0(sp) + ld x3, 16(sp) + ld x8, 32(sp) + ld x9, 40(sp) + ld x24, 96(sp) + ld x25, 104(sp) + ld x26, 112(sp) + ld x27, 120(sp) + fld f18, 144(sp) + fld f19, 152(sp) + fld f20, 160(sp) + fld f21, 168(sp) + fld f22, 176(sp) + fld f23, 184(sp) + fld f24, 192(sp) + fld f25, 200(sp) + fld f26, 208(sp) + fld f27, 216(sp) + /* save VM registers */ + sd x16, 0(x10) + sd x17, 8(x10) + sd x18, 16(x10) + sd x19, 24(x10) + sd x20, 32(x10) + sd x21, 40(x10) + sd x22, 48(x10) + sd x23, 56(x10) + fsd f0, 64(x10) + fsd f1, 72(x10) + fsd f2, 80(x10) + fsd f3, 88(x10) + fsd f4, 96(x10) + fsd f5, 104(x10) + fsd f6, 112(x10) + fsd f7, 120(x10) + fsd f8, 128(x10) + fsd f9, 136(x10) + fsd f10, 144(x10) + fsd f11, 152(x10) + fsd f12, 160(x10) + fsd f13, 168(x10) + fsd f14, 176(x10) + fsd f15, 184(x10) + /* restore callee saved registers */ + ld x18, 48(sp) + ld x19, 56(sp) + ld x20, 64(sp) + ld x21, 72(sp) + ld x22, 80(sp) + ld x23, 88(sp) + fld f8, 128(sp) + fld f9, 136(sp) + /* restore stack pointer */ + addi sp, sp, 224 + /* return */ + ret + +/* + Soft AES subroutines + in: + x3 = literal pool + x8, x10 = round key + x30, x31 = plaintext + out: + x30, x31 = ciphertext + clobbers: + x8-x11 (limbs) + x12-x13 (LUTs) + x14-x15 (temp) +*/ +DECL(randomx_riscv64_softaes): +softaes_enc: + /* enc. lookup table */ + ld x13, 128(x3) + + /* load the round key into x8, x9, x10, x11 */ + srli x9, x8, 32 + srli x11, x10, 32 +#ifdef __riscv_zba + zext.w x8, x8 + zext.w x10, x10 +#else + slli x8, x8, 32 + slli x10, x10, 32 + srli x8, x8, 32 + srli x10, x10, 32 +#endif + + /* byte 0 */ + zext.b x14, x30 + srli x30, x30, 8 + addi x12, x13, -2048 +#ifdef __riscv_zba + sh2add x14, x14, x13 +#else + slli x14, x14, 2 + add x14, x14, x13 +#endif + lwu x14, -2048(x14) + + /* byte 1 */ + zext.b x15, x30 + srli x30, x30, 8 +#ifdef __riscv_zba + sh2add x15, x15, x12 +#else + slli x15, x15, 2 + add x15, x15, x12 +#endif + lwu x15, 1024(x15) + xor x8, x8, x14 + + /* byte 2 */ + zext.b x14, x30 + srli x30, x30, 8 +#ifdef __riscv_zba + sh2add x14, x14, x13 +#else + slli x14, x14, 2 + add x14, x14, x13 +#endif + lwu x14, 0(x14) + xor x11, x11, x15 + + /* byte 3 */ + zext.b x15, x30 + srli x30, x30, 8 +#ifdef __riscv_zba + sh2add x15, x15, x13 +#else + slli x15, x15, 2 + add x15, x15, x13 +#endif + lwu x15, 1024(x15) + xor x10, x10, x14 + + /* byte 4 */ + zext.b x14, x30 + srli x30, x30, 8 +#ifdef __riscv_zba + sh2add x14, x14, x12 +#else + slli x14, x14, 2 + add x14, x14, x12 +#endif + lwu x14, 0(x14) + xor x9, x9, x15 + + /* byte 5 */ + zext.b x15, x30 + srli x30, x30, 8 +#ifdef __riscv_zba + sh2add x15, x15, x12 +#else + slli x15, x15, 2 + add x15, x15, x12 +#endif + lwu x15, 1024(x15) + xor x9, x9, x14 + + /* byte 6 */ + zext.b x14, x30 + srli x30, x30, 8 +#ifdef __riscv_zba + sh2add x14, x14, x13 +#else + slli x14, x14, 2 + add x14, x14, x13 +#endif + lwu x14, 0(x14) + xor x8, x8, x15 + + /* byte 7 */ + zext.b x15, x30 +#ifdef __riscv_zba + sh2add x15, x15, x13 +#else + slli x15, x15, 2 + add x15, x15, x13 +#endif + lwu x15, 1024(x15) + xor x11, x11, x14 + + /* byte 8 */ + zext.b x14, x31 + srli x31, x31, 8 +#ifdef __riscv_zba + sh2add x14, x14, x12 +#else + slli x14, x14, 2 + add x14, x14, x12 +#endif + lwu x14, 0(x14) + xor x10, x10, x15 + + /* byte 9 */ + zext.b x15, x31 + srli x31, x31, 8 +#ifdef __riscv_zba + sh2add x15, x15, x12 +#else + slli x15, x15, 2 + add x15, x15, x12 +#endif + lwu x15, 1024(x15) + xor x10, x10, x14 + + /* byte 10 */ + zext.b x14, x31 + srli x31, x31, 8 +#ifdef __riscv_zba + sh2add x14, x14, x13 +#else + slli x14, x14, 2 + add x14, x14, x13 +#endif + lwu x14, 0(x14) + xor x9, x9, x15 + + /* byte 11 */ + zext.b x15, x31 + srli x31, x31, 8 +#ifdef __riscv_zba + sh2add x15, x15, x13 +#else + slli x15, x15, 2 + add x15, x15, x13 +#endif + lwu x15, 1024(x15) + xor x8, x8, x14 + + /* byte 12 */ + zext.b x14, x31 + srli x31, x31, 8 +#ifdef __riscv_zba + sh2add x14, x14, x12 +#else + slli x14, x14, 2 + add x14, x14, x12 +#endif + lwu x14, 0(x14) + xor x11, x11, x15 + + /* byte 13 */ + zext.b x15, x31 + srli x31, x31, 8 +#ifdef __riscv_zba + sh2add x15, x15, x12 +#else + slli x15, x15, 2 + add x15, x15, x12 +#endif + lwu x15, 1024(x15) + xor x11, x11, x14 + + /* byte 14 */ + zext.b x14, x31 + srli x31, x31, 8 +#ifdef __riscv_zba + sh2add x14, x14, x13 +#else + slli x14, x14, 2 + add x14, x14, x13 +#endif + lwu x14, 0(x14) + xor x10, x10, x15 + + /* byte 15 */ + zext.b x15, x31 +#ifdef __riscv_zba + sh2add x15, x15, x13 +#else + slli x15, x15, 2 + add x15, x15, x13 +#endif + lwu x15, 1024(x15) + xor x9, x9, x14 + + slli x11, x11, 32 + slli x9, x9, 32 + or x30, x8, x9 + or x31, x10, x11 + xor x30, x30, x15 + + ret + +softaes_dec: + /* dec. lookup table */ + ld x13, 136(x3) + + /* load the round key into x8, x9, x10, x11 */ + srli x9, x8, 32 + srli x11, x10, 32 +#ifdef __riscv_zba + zext.w x8, x8 + zext.w x10, x10 +#else + slli x8, x8, 32 + slli x10, x10, 32 + srli x8, x8, 32 + srli x10, x10, 32 +#endif + + /* byte 0 */ + zext.b x14, x30 + srli x30, x30, 8 + addi x12, x13, -2048 +#ifdef __riscv_zba + sh2add x14, x14, x13 +#else + slli x14, x14, 2 + add x14, x14, x13 +#endif + lwu x14, -2048(x14) + + /* byte 1 */ + zext.b x15, x30 + srli x30, x30, 8 +#ifdef __riscv_zba + sh2add x15, x15, x12 +#else + slli x15, x15, 2 + add x15, x15, x12 +#endif + lwu x15, 1024(x15) + xor x8, x8, x14 + + /* byte 2 */ + zext.b x14, x30 + srli x30, x30, 8 +#ifdef __riscv_zba + sh2add x14, x14, x13 +#else + slli x14, x14, 2 + add x14, x14, x13 +#endif + lwu x14, 0(x14) + xor x9, x9, x15 + + /* byte 3 */ + zext.b x15, x30 + srli x30, x30, 8 +#ifdef __riscv_zba + sh2add x15, x15, x13 +#else + slli x15, x15, 2 + add x15, x15, x13 +#endif + lwu x15, 1024(x15) + xor x10, x10, x14 + + /* byte 4 */ + zext.b x14, x30 + srli x30, x30, 8 +#ifdef __riscv_zba + sh2add x14, x14, x12 +#else + slli x14, x14, 2 + add x14, x14, x12 +#endif + lwu x14, 0(x14) + xor x11, x11, x15 + + /* byte 5 */ + zext.b x15, x30 + srli x30, x30, 8 +#ifdef __riscv_zba + sh2add x15, x15, x12 +#else + slli x15, x15, 2 + add x15, x15, x12 +#endif + lwu x15, 1024(x15) + xor x9, x9, x14 + + /* byte 6 */ + zext.b x14, x30 + srli x30, x30, 8 +#ifdef __riscv_zba + sh2add x14, x14, x13 +#else + slli x14, x14, 2 + add x14, x14, x13 +#endif + lwu x14, 0(x14) + xor x10, x10, x15 + + /* byte 7 */ + zext.b x15, x30 +#ifdef __riscv_zba + sh2add x15, x15, x13 +#else + slli x15, x15, 2 + add x15, x15, x13 +#endif + lwu x15, 1024(x15) + xor x11, x11, x14 + + /* byte 8 */ + zext.b x14, x31 + srli x31, x31, 8 +#ifdef __riscv_zba + sh2add x14, x14, x12 +#else + slli x14, x14, 2 + add x14, x14, x12 +#endif + lwu x14, 0(x14) + xor x8, x8, x15 + + /* byte 9 */ + zext.b x15, x31 + srli x31, x31, 8 +#ifdef __riscv_zba + sh2add x15, x15, x12 +#else + slli x15, x15, 2 + add x15, x15, x12 +#endif + lwu x15, 1024(x15) + xor x10, x10, x14 + + /* byte 10 */ + zext.b x14, x31 + srli x31, x31, 8 +#ifdef __riscv_zba + sh2add x14, x14, x13 +#else + slli x14, x14, 2 + add x14, x14, x13 +#endif + lwu x14, 0(x14) + xor x11, x11, x15 + + /* byte 11 */ + zext.b x15, x31 + srli x31, x31, 8 +#ifdef __riscv_zba + sh2add x15, x15, x13 +#else + slli x15, x15, 2 + add x15, x15, x13 +#endif + lwu x15, 1024(x15) + xor x8, x8, x14 + + /* byte 12 */ + zext.b x14, x31 + srli x31, x31, 8 +#ifdef __riscv_zba + sh2add x14, x14, x12 +#else + slli x14, x14, 2 + add x14, x14, x12 +#endif + lwu x14, 0(x14) + xor x9, x9, x15 + + /* byte 13 */ + zext.b x15, x31 + srli x31, x31, 8 +#ifdef __riscv_zba + sh2add x15, x15, x12 +#else + slli x15, x15, 2 + add x15, x15, x12 +#endif + lwu x15, 1024(x15) + xor x11, x11, x14 + + /* byte 14 */ + zext.b x14, x31 + srli x31, x31, 8 +#ifdef __riscv_zba + sh2add x14, x14, x13 +#else + slli x14, x14, 2 + add x14, x14, x13 +#endif + lwu x14, 0(x14) + xor x8, x8, x15 + + /* byte 15 */ + zext.b x15, x31 +#ifdef __riscv_zba + sh2add x15, x15, x13 +#else + slli x15, x15, 2 + add x15, x15, x13 +#endif + lwu x15, 1024(x15) + xor x9, x9, x14 + + slli x11, x11, 32 + slli x9, x9, 32 + or x30, x8, x9 + or x31, x10, x11 + xor x31, x31, x15 + + ret + +DECL(randomx_riscv64_program_end): + nop + + +/* literal pool for SuperscalarHash */ + /* space for remaining IMUL_RCP literals */ +ssh_literal_pool: + /* space for 256 IMUL_RCP literals */ + .fill 256,8,0 + +/* + SuperscalarHash subroutine + in: + x3 = literal pool + x6 = cache + x7 = itemNumber + out: + x8-x15 = 64-byte hash + clobbers: + x7, x28-x31 +*/ +DECL(randomx_riscv64_ssh_init): +superscalar_hash: + ld x30, 0(x3) /* superscalarMul0 */ + addi x8, x7, 1 + ld x9, 8(x3) + li x31, RANDOMX_CACHE_MASK + ld x10, 16(x3) + ld x11, 24(x3) + mul x8, x8, x30 + ld x12, 32(x3) + ld x13, 40(x3) + lla x30, ssh_literal_pool + ld x14, 48(x3) + and x7, x7, x31 + ld x15, 56(x3) + slli x7, x7, 6 + xor x9, x9, x8 + add x7, x7, x6 + xor x10, x10, x8 + /* load the first IMUL_RCP literal */ + ld x31, 2040(x30) + xor x11, x11, x8 + xor x12, x12, x8 + xor x13, x13, x8 + xor x14, x14, x8 + xor x15, x15, x8 + +DECL(randomx_riscv64_ssh_load): + ld x28, 0(x7) + ld x29, 8(x7) + xor x8, x8, x28 + ld x28, 16(x7) + xor x9, x9, x29 + ld x29, 24(x7) + xor x10, x10, x28 + ld x28, 32(x7) + xor x11, x11, x29 + ld x29, 40(x7) + xor x12, x12, x28 + ld x28, 48(x7) + xor x13, x13, x29 + ld x29, 56(x7) + xor x14, x14, x28 + li x7, RANDOMX_CACHE_MASK + xor x15, x15, x29 + +DECL(randomx_riscv64_ssh_prefetch): + and x7, x8, x7 /* JIT compiler will adjust the register */ + slli x7, x7, 6 + add x7, x7, x6 + /* prefetch - doesn't seem to have any effect */ + /* ld x0, 0(x7) */ + +DECL(randomx_riscv64_ssh_end): + nop diff --git a/src/jit_compiler_rv64_static.hpp b/src/jit_compiler_rv64_static.hpp new file mode 100644 index 0000000..656623c --- /dev/null +++ b/src/jit_compiler_rv64_static.hpp @@ -0,0 +1,53 @@ +/* +Copyright (c) 2023 tevador + +All rights reserved. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are met: + * Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + * Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in the + documentation and/or other materials provided with the distribution. + * Neither the name of the copyright holder nor the + names of its contributors may be used to endorse or promote products + derived from this software without specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND +ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED +WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE +DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE +FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR +SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER +CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +*/ + +#pragma once + +extern "C" { + void randomx_riscv64_literals(); + void randomx_riscv64_literals_end(); + void randomx_riscv64_data_init(); + void randomx_riscv64_fix_data_call(); + void randomx_riscv64_prologue(); + void randomx_riscv64_loop_begin(); + void randomx_riscv64_data_read(); + void randomx_riscv64_data_read_light(); + void randomx_riscv64_fix_loop_call(); + void randomx_riscv64_spad_store(); + void randomx_riscv64_spad_store_hardaes(); + void randomx_riscv64_spad_store_softaes(); + void randomx_riscv64_loop_end(); + void randomx_riscv64_fix_continue_loop(); + void randomx_riscv64_epilogue(); + void randomx_riscv64_softaes(); + void randomx_riscv64_program_end(); + void randomx_riscv64_ssh_init(); + void randomx_riscv64_ssh_load(); + void randomx_riscv64_ssh_prefetch(); + void randomx_riscv64_ssh_end(); +} diff --git a/src/tests/riscv64_zba.s b/src/tests/riscv64_zba.s new file mode 100644 index 0000000..e1947e7 --- /dev/null +++ b/src/tests/riscv64_zba.s @@ -0,0 +1,9 @@ +/* RISC-V - test if the Zba extension is present */ + +.text +.global main + +main: + sh1add x6, x6, x7 + li x10, 0 + ret diff --git a/src/tests/riscv64_zbb.s b/src/tests/riscv64_zbb.s new file mode 100644 index 0000000..d922043 --- /dev/null +++ b/src/tests/riscv64_zbb.s @@ -0,0 +1,9 @@ +/* RISC-V - test if the Zbb extension is present */ + +.text +.global main + +main: + ror x6, x6, x7 + li x10, 0 + ret