Files
cpufetch/src/riscv/riscv.h
Dr-Noob a19c421362 [v1.06][RISCV] Add latest extensions and refactor the mask structure
There are *a lot* of new extensions in the Linux kernel now (Linux
v6.16) since the last time I checked (Linux v6.2.10), so added them all
plus ime, which is not present in the kernel apparently, but that I
spotted in a RISC-V chip.

Previously, the mask was represented with a uint64_t value, which is
fine as long as we have less than 65 possible extensions. This is not
the case anymore, so instead I replaced that with a pointer of bool,
which gets allocated depending on the max number of extensions that
we support.
2025-10-31 07:45:07 +01:00

206 lines
9.7 KiB
C

#ifndef __RISCV__
#define __RISCV__
#include "../common/cpu.h"
struct extension {
int id;
char* str;
};
#define RISCV_ISA_EXT_NAME_LEN_MAX 32
#define RISCV_ISA_EXT_BASE 26
// https://elixir.bootlin.com/linux/latest/source/arch/riscv/include/asm/hwcap.h
// This enum represent the logical ID for multi-letter RISC-V ISA extensions.
// The logical ID should start from RISCV_ISA_EXT_BASE
enum riscv_isa_ext_id {
RISCV_ISA_EXT_SSCOFPMF = RISCV_ISA_EXT_BASE,
RISCV_ISA_EXT_SSTC,
RISCV_ISA_EXT_SVINVAL,
RISCV_ISA_EXT_SVPBMT,
RISCV_ISA_EXT_ZBB,
RISCV_ISA_EXT_ZICBOM,
RISCV_ISA_EXT_ZIHINTPAUSE,
RISCV_ISA_EXT_SVNAPOT,
RISCV_ISA_EXT_ZICBOZ,
RISCV_ISA_EXT_SMAIA,
RISCV_ISA_EXT_SSAIA,
RISCV_ISA_EXT_ZBA,
RISCV_ISA_EXT_ZBS,
RISCV_ISA_EXT_ZICNTR,
RISCV_ISA_EXT_ZICSR,
RISCV_ISA_EXT_ZIFENCEI,
RISCV_ISA_EXT_ZIHPM,
RISCV_ISA_EXT_SMSTATEEN,
RISCV_ISA_EXT_ZICOND,
RISCV_ISA_EXT_ZBC,
RISCV_ISA_EXT_ZBKB,
RISCV_ISA_EXT_ZBKC,
RISCV_ISA_EXT_ZBKX,
RISCV_ISA_EXT_ZKND,
RISCV_ISA_EXT_ZKNE,
RISCV_ISA_EXT_ZKNH,
RISCV_ISA_EXT_ZKR,
RISCV_ISA_EXT_ZKSED,
RISCV_ISA_EXT_ZKSH,
RISCV_ISA_EXT_ZKT,
RISCV_ISA_EXT_ZVBB,
RISCV_ISA_EXT_ZVBC,
RISCV_ISA_EXT_ZVKB,
RISCV_ISA_EXT_ZVKG,
RISCV_ISA_EXT_ZVKNED,
RISCV_ISA_EXT_ZVKNHA,
RISCV_ISA_EXT_ZVKNHB,
RISCV_ISA_EXT_ZVKSED,
RISCV_ISA_EXT_ZVKSH,
RISCV_ISA_EXT_ZVKT,
RISCV_ISA_EXT_ZFH,
RISCV_ISA_EXT_ZFHMIN,
RISCV_ISA_EXT_ZIHINTNTL,
RISCV_ISA_EXT_ZVFH,
RISCV_ISA_EXT_ZVFHMIN,
RISCV_ISA_EXT_ZFA,
RISCV_ISA_EXT_ZTSO,
RISCV_ISA_EXT_ZACAS,
RISCV_ISA_EXT_ZVE32X,
RISCV_ISA_EXT_ZVE32F,
RISCV_ISA_EXT_ZVE64X,
RISCV_ISA_EXT_ZVE64F,
RISCV_ISA_EXT_ZVE64D,
RISCV_ISA_EXT_ZIMOP,
RISCV_ISA_EXT_ZCA,
RISCV_ISA_EXT_ZCB,
RISCV_ISA_EXT_ZCD,
RISCV_ISA_EXT_ZCF,
RISCV_ISA_EXT_ZCMOP,
RISCV_ISA_EXT_ZAWRS,
RISCV_ISA_EXT_SVVPTC,
RISCV_ISA_EXT_SMMPM,
RISCV_ISA_EXT_SMNPM,
RISCV_ISA_EXT_SSNPM,
RISCV_ISA_EXT_ZABHA,
RISCV_ISA_EXT_ZICCRSE,
RISCV_ISA_EXT_SVADE,
RISCV_ISA_EXT_SVADU,
RISCV_ISA_EXT_ZFBFMIN,
RISCV_ISA_EXT_ZVFBFMIN,
RISCV_ISA_EXT_ZVFBFWMA,
RISCV_ISA_EXT_ZAAMO,
RISCV_ISA_EXT_ZALRSC,
RISCV_ISA_EXT_ZICBOP,
RISCV_ISA_EXT_IME, // This is not in the kernel! but it was seen on a Muse Pi Pro board
RISCV_ISA_EXT_ID_MAX
};
// https://five-embeddev.com/riscv-isa-manual/latest/preface.html#preface
// https://en.wikichip.org/wiki/risc-v/standard_extensions
// (Zicbop) https://github.com/riscv/riscv-CMOs/blob/master/cmobase/Zicbop.adoc
// https://raw.githubusercontent.com/riscv/riscv-CMOs/master/specifications/cmobase-v1.0.1.pdf
// https://www.kernel.org/doc/Documentation/devicetree/bindings/riscv/extensions.yaml
// https://gcc.gnu.org/onlinedocs/gcc/RISC-V-Options.html
// (Ime) https://github.com/riscv/integrated-matrix-extension (not confirmed, just a guess...)
// Included all except for G
static const struct extension extension_list[] = {
{ 'i' - 'a', "(I) Integer Instruction Set" },
{ 'm' - 'a', "(M) Integer Multiplication and Division" },
{ 'a' - 'a', "(A) Atomic Instructions" },
{ 'f' - 'a', "(F) Single-Precision Floating-Point" },
{ 'd' - 'a', "(D) Double-Precision Floating-Point" },
{ 'q' - 'a', "(Q) Quad-Precision Floating-Point" },
{ 'l' - 'a', "(L) Decimal Floating-Point" },
{ 'c' - 'a', "(C) Compressed Instructions" },
{ 'b' - 'a', "(B) Double-Precision Floating-Point" },
{ 'j' - 'a', "(J) Dynamically Translated Languages" },
{ 't' - 'a', "(T) Transactional Memory" },
{ 'p' - 'a', "(P) Packed-SIMD Instructions" },
{ 'v' - 'a', "(V) Vector Operations" },
{ 'n' - 'a', "(N) User-Level Interrupts" },
{ 'h' - 'a', "(H) Hypervisor" },
// multi-letter extensions
{ RISCV_ISA_EXT_SSCOFPMF, "(Sscofpmf) Count OverFlow and Privilege Mode Filtering" },
{ RISCV_ISA_EXT_SSTC, "(Sstc) S and VS level Time Compare" },
{ RISCV_ISA_EXT_SVINVAL, "(Svinval) Fast TLB Invalidation" },
{ RISCV_ISA_EXT_SVPBMT, "(Svpbmt) Page-based Memory Types" },
{ RISCV_ISA_EXT_ZBB, "(Zbb) Basic bit-manipulation" },
{ RISCV_ISA_EXT_ZICBOM, "(Zicbom) Cache Block Management Operations" },
{ RISCV_ISA_EXT_ZIHINTPAUSE, "(Zihintpause) Pause Hint" },
{ RISCV_ISA_EXT_SVNAPOT, "(Svnapot) Naturally Aligned Power of Two Pages" },
{ RISCV_ISA_EXT_ZICBOZ, "(Zicboz) Cache Block Zero Operations" },
{ RISCV_ISA_EXT_ZICBOP, "(Zicbop) Cache Block Prefetch Operations" },
{ RISCV_ISA_EXT_SMAIA, "(Smaia) Advanced Interrupt Architecture" },
{ RISCV_ISA_EXT_SSAIA, "(Ssaia) Advanced Interrupt Architecture" },
{ RISCV_ISA_EXT_ZBA, "(Zba) Address Generation" },
{ RISCV_ISA_EXT_ZBS, "(Zbs) Single-bit Instructions" },
{ RISCV_ISA_EXT_ZICNTR, "(Zicntr) Base Counters and Timers" },
{ RISCV_ISA_EXT_ZICSR, "(Zicsr) Control and Status Register" },
{ RISCV_ISA_EXT_ZIFENCEI, "(Zifencei) Instruction-Fetch Fence" },
{ RISCV_ISA_EXT_ZIHPM, "(Zihpm) Hardware Performance Counters" },
{ RISCV_ISA_EXT_SMSTATEEN, "(Smstateen) Supervisor/Hypervisor State Enable" },
{ RISCV_ISA_EXT_ZICOND, "(Zicond) Integer Conditional Operations" },
{ RISCV_ISA_EXT_ZBC, "(Zbc) Carry-Less Multiplication" },
{ RISCV_ISA_EXT_ZBKB, "(Zbkb) Bit-Manipulation for Cryptography (Byte ops)" },
{ RISCV_ISA_EXT_ZBKC, "(Zbkc) Bit-Manipulation for Cryptography (Carry-less ops)" },
{ RISCV_ISA_EXT_ZBKX, "(Zbkx) Bit-Manipulation for Cryptography (Crossbar ops)" },
{ RISCV_ISA_EXT_ZKND, "(Zknd) NIST AES Decryption Instructions" },
{ RISCV_ISA_EXT_ZKNE, "(Zkne) NIST AES Encryption Instructions" },
{ RISCV_ISA_EXT_ZKNH, "(Zknh) NIST Hash (SHA-2/SHA-3) Instructions" },
{ RISCV_ISA_EXT_ZKR, "(Zkr) Entropy Source Reading (Random)" },
{ RISCV_ISA_EXT_ZKSED, "(Zksed) SM4 Block Cipher Decryption" },
{ RISCV_ISA_EXT_ZKSH, "(Zksh) SM3 Hash Instructions" },
{ RISCV_ISA_EXT_ZKT, "(Zkt) Data-Independent Execution Latency" },
{ RISCV_ISA_EXT_ZVBB, "(Zvbb) Vector Basic Bit-Manipulation" },
{ RISCV_ISA_EXT_ZVBC, "(Zvbc) Vector Carry-Less Multiplication" },
{ RISCV_ISA_EXT_ZVKB, "(Zvkb) Vector Cryptography (Byte ops)" },
{ RISCV_ISA_EXT_ZVKG, "(Zvkg) Vector GCM/GMAC Instructions" },
{ RISCV_ISA_EXT_ZVKNED, "(Zvkned) Vector AES Decryption" },
{ RISCV_ISA_EXT_ZVKNHA, "(Zvknha) Vector SHA-2 Hash (A variant)" },
{ RISCV_ISA_EXT_ZVKNHB, "(Zvknhb) Vector SHA-2 Hash (B variant)" },
{ RISCV_ISA_EXT_ZVKSED, "(Zvksed) Vector SM4 Block Cipher Decryption" },
{ RISCV_ISA_EXT_ZVKSH, "(Zvksh) Vector SM3 Hash Instructions" },
{ RISCV_ISA_EXT_ZVKT, "(Zvkt) Vector Data-Independent Execution Latency" },
{ RISCV_ISA_EXT_ZFH, "(Zfh) Half-Precision Floating Point" },
{ RISCV_ISA_EXT_ZFHMIN, "(Zfhmin) Minimal Half-Precision Floating Point" },
{ RISCV_ISA_EXT_ZIHINTNTL, "(Zihintntl) Non-Temporal Load/Store Hints" },
{ RISCV_ISA_EXT_ZVFH, "(Zvfh) Vector Half-Precision Floating Point" },
{ RISCV_ISA_EXT_ZVFHMIN, "(Zvfhmin) Minimal Vector Half-Precision Floating Point" },
{ RISCV_ISA_EXT_ZFA, "(Zfa) Additional Floating-Point Instructions" },
{ RISCV_ISA_EXT_ZTSO, "(Ztso) Total Store Ordering Memory Model" },
{ RISCV_ISA_EXT_ZACAS, "(Zacas) Atomic Compare-and-Swap" },
{ RISCV_ISA_EXT_ZVE32X, "(Zve32x) Embedded Vector Integer (32-bit elements)" },
{ RISCV_ISA_EXT_ZVE32F, "(Zve32f) Embedded Vector Floating Point (f32)" },
{ RISCV_ISA_EXT_ZVE64X, "(Zve64x) Embedded Vector Integer (64-bit elements)" },
{ RISCV_ISA_EXT_ZVE64F, "(Zve64f) Embedded Vector Floating Point (f64)" },
{ RISCV_ISA_EXT_ZVE64D, "(Zve64d) Embedded Vector Double-Precision FP (f64)" },
{ RISCV_ISA_EXT_ZIMOP, "(Zimop) Integer Multiply-Only Instructions" },
{ RISCV_ISA_EXT_ZCA, "(Zca) Compressed Integer Instructions" },
{ RISCV_ISA_EXT_ZCB, "(Zcb) Compressed Bit-Manipulation Instructions" },
{ RISCV_ISA_EXT_ZCD, "(Zcd) Compressed Double-Precision FP Instructions" },
{ RISCV_ISA_EXT_ZCF, "(Zcf) Compressed Single-Precision FP Instructions" },
{ RISCV_ISA_EXT_ZCMOP, "(Zcmop) Compressed Multiply-Only Instructions" },
{ RISCV_ISA_EXT_ZAWRS, "(Zawrs) Wait-on-Reservation-Set Instruction" },
{ RISCV_ISA_EXT_SVVPTC, "(Svvptc) Supervisor Virtual Page Table Cache Control" },
{ RISCV_ISA_EXT_SMMPM, "(Smmpm) Supervisor Memory Protection Modification" },
{ RISCV_ISA_EXT_SMNPM, "(Smnpm) Supervisor Non-Privileged Memory Access Control" },
{ RISCV_ISA_EXT_SSNPM, "(Ssnpm) Supervisor Secure Non-Privileged Memory" },
{ RISCV_ISA_EXT_ZABHA, "(Zabha) Atomic Byte/Halfword Operations" },
{ RISCV_ISA_EXT_ZICCRSE, "(Ziccrse) Cache Control Range Start/End Operations" },
{ RISCV_ISA_EXT_SVADE, "(Svade) Supervisor Virtual Address Deferred Exception" },
{ RISCV_ISA_EXT_SVADU, "(Svadu) Supervisor Virtual Address Dirty Update" },
{ RISCV_ISA_EXT_ZFBFMIN, "(Zfbfmin) Minimal BFloat16 Floating Point" },
{ RISCV_ISA_EXT_ZVFBFMIN, "(Zvfbfmin) Vector Minimal BFloat16 Floating Point" },
{ RISCV_ISA_EXT_ZVFBFWMA, "(Zvfbfwma) Vector BFloat16 Widening Multiply-Accumulate" },
{ RISCV_ISA_EXT_ZAAMO, "(Zaamo) Atomic Memory Operation (AMO) Instructions" },
{ RISCV_ISA_EXT_ZALRSC, "(Zalrsc) Atomic Load-Reserved/Store-Conditional" },
{ RISCV_ISA_EXT_ZICBOP, "(Zicbop) Cache Block Prefetch/Zero Operations" },
{ RISCV_ISA_EXT_IME, "(Ime) Integrated Matrix Extension" },
};
struct cpuInfo* get_cpu_info(void);
char* get_str_topology(struct cpuInfo* cpu, struct topology* topo);
char* get_str_extensions(struct cpuInfo* cpu);
uint32_t get_num_extensions(bool* mask);
void print_debug(struct cpuInfo* cpu);
#endif