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cpuinfo.h
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#pragma once
#ifndef CPUINFO_H
#define CPUINFO_H
#ifndef __cplusplus
#include <stdbool.h>
#endif
#ifdef __APPLE__
#include <TargetConditionals.h>
#endif
#include <stdint.h>
/* Identify architecture and define corresponding macro */
#if defined(__i386__) || defined(__i486__) || defined(__i586__) || defined(__i686__) || defined(_M_IX86)
#define CPUINFO_ARCH_X86 1
#endif
#if defined(__x86_64__) || defined(__x86_64) || (defined(_M_X64) && !defined(_M_ARM64EC)) || \
(defined(_M_AMD64) && !defined(_M_ARM64EC))
#define CPUINFO_ARCH_X86_64 1
#endif
#if defined(__arm__) || defined(_M_ARM)
#define CPUINFO_ARCH_ARM 1
#endif
#if defined(__aarch64__) || defined(_M_ARM64) || defined(_M_ARM64EC)
#define CPUINFO_ARCH_ARM64 1
#endif
#if defined(__PPC64__) || defined(__powerpc64__) || defined(_ARCH_PPC64)
#define CPUINFO_ARCH_PPC64 1
#endif
#if defined(__asmjs__)
#define CPUINFO_ARCH_ASMJS 1
#endif
#if defined(__wasm__)
#if defined(__wasm_simd128__)
#define CPUINFO_ARCH_WASMSIMD 1
#else
#define CPUINFO_ARCH_WASM 1
#endif
#endif
#if defined(__riscv)
#if (__riscv_xlen == 32)
#define CPUINFO_ARCH_RISCV32 1
#elif (__riscv_xlen == 64)
#define CPUINFO_ARCH_RISCV64 1
#endif
#endif
/* Define other architecture-specific macros as 0 */
#ifndef CPUINFO_ARCH_X86
#define CPUINFO_ARCH_X86 0
#endif
#ifndef CPUINFO_ARCH_X86_64
#define CPUINFO_ARCH_X86_64 0
#endif
#ifndef CPUINFO_ARCH_ARM
#define CPUINFO_ARCH_ARM 0
#endif
#ifndef CPUINFO_ARCH_ARM64
#define CPUINFO_ARCH_ARM64 0
#endif
#ifndef CPUINFO_ARCH_PPC64
#define CPUINFO_ARCH_PPC64 0
#endif
#ifndef CPUINFO_ARCH_ASMJS
#define CPUINFO_ARCH_ASMJS 0
#endif
#ifndef CPUINFO_ARCH_WASM
#define CPUINFO_ARCH_WASM 0
#endif
#ifndef CPUINFO_ARCH_WASMSIMD
#define CPUINFO_ARCH_WASMSIMD 0
#endif
#ifndef CPUINFO_ARCH_RISCV32
#define CPUINFO_ARCH_RISCV32 0
#endif
#ifndef CPUINFO_ARCH_RISCV64
#define CPUINFO_ARCH_RISCV64 0
#endif
#if CPUINFO_ARCH_X86 && defined(_MSC_VER)
#define CPUINFO_ABI __cdecl
#elif CPUINFO_ARCH_X86 && defined(__GNUC__)
#define CPUINFO_ABI __attribute__((__cdecl__))
#else
#define CPUINFO_ABI
#endif
#define CPUINFO_CACHE_UNIFIED 0x00000001
#define CPUINFO_CACHE_INCLUSIVE 0x00000002
#define CPUINFO_CACHE_COMPLEX_INDEXING 0x00000004
struct cpuinfo_cache {
/** Cache size in bytes */
uint32_t size;
/** Number of ways of associativity */
uint32_t associativity;
/** Number of sets */
uint32_t sets;
/** Number of partitions */
uint32_t partitions;
/** Line size in bytes */
uint32_t line_size;
/**
* Binary characteristics of the cache (unified cache, inclusive cache,
* cache with complex indexing).
*
* @see CPUINFO_CACHE_UNIFIED, CPUINFO_CACHE_INCLUSIVE,
* CPUINFO_CACHE_COMPLEX_INDEXING
*/
uint32_t flags;
/** Index of the first logical processor that shares this cache */
uint32_t processor_start;
/** Number of logical processors that share this cache */
uint32_t processor_count;
};
struct cpuinfo_trace_cache {
uint32_t uops;
uint32_t associativity;
};
#define CPUINFO_PAGE_SIZE_4KB 0x1000
#define CPUINFO_PAGE_SIZE_1MB 0x100000
#define CPUINFO_PAGE_SIZE_2MB 0x200000
#define CPUINFO_PAGE_SIZE_4MB 0x400000
#define CPUINFO_PAGE_SIZE_16MB 0x1000000
#define CPUINFO_PAGE_SIZE_1GB 0x40000000
struct cpuinfo_tlb {
uint32_t entries;
uint32_t associativity;
uint64_t pages;
};
/** Vendor of processor core design */
enum cpuinfo_vendor {
/** Processor vendor is not known to the library, or the library failed
to get vendor information from the OS. */
cpuinfo_vendor_unknown = 0,
/* Active vendors of modern CPUs */
/**
* Intel Corporation. Vendor of x86, x86-64, IA64, and ARM processor
* microarchitectures.
*
* Sold its ARM design subsidiary in 2006. The last ARM processor design
* was released in 2004.
*/
cpuinfo_vendor_intel = 1,
/** Advanced Micro Devices, Inc. Vendor of x86 and x86-64 processor
microarchitectures. */
cpuinfo_vendor_amd = 2,
/** ARM Holdings plc. Vendor of ARM and ARM64 processor
microarchitectures. */
cpuinfo_vendor_arm = 3,
/** Qualcomm Incorporated. Vendor of ARM and ARM64 processor
microarchitectures. */
cpuinfo_vendor_qualcomm = 4,
/** Apple Inc. Vendor of ARM and ARM64 processor microarchitectures. */
cpuinfo_vendor_apple = 5,
/** Samsung Electronics Co., Ltd. Vendir if ARM64 processor
microarchitectures. */
cpuinfo_vendor_samsung = 6,
/** Nvidia Corporation. Vendor of ARM64-compatible processor
microarchitectures. */
cpuinfo_vendor_nvidia = 7,
/** MIPS Technologies, Inc. Vendor of MIPS processor microarchitectures.
*/
cpuinfo_vendor_mips = 8,
/** International Business Machines Corporation. Vendor of PowerPC
processor microarchitectures. */
cpuinfo_vendor_ibm = 9,
/** Ingenic Semiconductor. Vendor of MIPS processor microarchitectures.
*/
cpuinfo_vendor_ingenic = 10,
/**
* VIA Technologies, Inc. Vendor of x86 and x86-64 processor
* microarchitectures.
*
* Processors are designed by Centaur Technology, a subsidiary of VIA
* Technologies.
*/
cpuinfo_vendor_via = 11,
/** Cavium, Inc. Vendor of ARM64 processor microarchitectures. */
cpuinfo_vendor_cavium = 12,
/** Broadcom, Inc. Vendor of ARM processor microarchitectures. */
cpuinfo_vendor_broadcom = 13,
/** Applied Micro Circuits Corporation (APM). Vendor of ARM64 processor
microarchitectures. */
cpuinfo_vendor_apm = 14,
/**
* Huawei Technologies Co., Ltd. Vendor of ARM64 processor
* microarchitectures.
*
* Processors are designed by HiSilicon, a subsidiary of Huawei.
*/
cpuinfo_vendor_huawei = 15,
/**
* Hygon (Chengdu Haiguang Integrated Circuit Design Co., Ltd), Vendor
* of x86-64 processor microarchitectures.
*
* Processors are variants of AMD cores.
*/
cpuinfo_vendor_hygon = 16,
/** SiFive, Inc. Vendor of RISC-V processor microarchitectures. */
cpuinfo_vendor_sifive = 17,
/* Active vendors of embedded CPUs */
/** Texas Instruments Inc. Vendor of ARM processor microarchitectures.
*/
cpuinfo_vendor_texas_instruments = 30,
/** Marvell Technology Group Ltd. Vendor of ARM processor
* microarchitectures.
*/
cpuinfo_vendor_marvell = 31,
/** RDC Semiconductor Co., Ltd. Vendor of x86 processor
microarchitectures. */
cpuinfo_vendor_rdc = 32,
/** DM&P Electronics Inc. Vendor of x86 processor microarchitectures. */
cpuinfo_vendor_dmp = 33,
/** Motorola, Inc. Vendor of PowerPC and ARM processor
microarchitectures. */
cpuinfo_vendor_motorola = 34,
/* Defunct CPU vendors */
/**
* Transmeta Corporation. Vendor of x86 processor microarchitectures.
*
* Now defunct. The last processor design was released in 2004.
* Transmeta processors implemented VLIW ISA and used binary translation
* to execute x86 code.
*/
cpuinfo_vendor_transmeta = 50,
/**
* Cyrix Corporation. Vendor of x86 processor microarchitectures.
*
* Now defunct. The last processor design was released in 1996.
*/
cpuinfo_vendor_cyrix = 51,
/**
* Rise Technology. Vendor of x86 processor microarchitectures.
*
* Now defunct. The last processor design was released in 1999.
*/
cpuinfo_vendor_rise = 52,
/**
* National Semiconductor. Vendor of x86 processor microarchitectures.
*
* Sold its x86 design subsidiary in 1999. The last processor design was
* released in 1998.
*/
cpuinfo_vendor_nsc = 53,
/**
* Silicon Integrated Systems. Vendor of x86 processor
* microarchitectures.
*
* Sold its x86 design subsidiary in 2001. The last processor design was
* released in 2001.
*/
cpuinfo_vendor_sis = 54,
/**
* NexGen. Vendor of x86 processor microarchitectures.
*
* Now defunct. The last processor design was released in 1994.
* NexGen designed the first x86 microarchitecture which decomposed x86
* instructions into simple microoperations.
*/
cpuinfo_vendor_nexgen = 55,
/**
* United Microelectronics Corporation. Vendor of x86 processor
* microarchitectures.
*
* Ceased x86 in the early 1990s. The last processor design was released
* in 1991. Designed U5C and U5D processors. Both are 486 level.
*/
cpuinfo_vendor_umc = 56,
/**
* Digital Equipment Corporation. Vendor of ARM processor
* microarchitecture.
*
* Sold its ARM designs in 1997. The last processor design was released
* in 1997.
*/
cpuinfo_vendor_dec = 57,
};
/**
* Processor microarchitecture
*
* Processors with different microarchitectures often have different instruction
* performance characteristics, and may have dramatically different pipeline
* organization.
*/
enum cpuinfo_uarch {
/** Microarchitecture is unknown, or the library failed to get
information about the microarchitecture from OS */
cpuinfo_uarch_unknown = 0,
/** Pentium and Pentium MMX microarchitecture. */
cpuinfo_uarch_p5 = 0x00100100,
/** Intel Quark microarchitecture. */
cpuinfo_uarch_quark = 0x00100101,
/** Pentium Pro, Pentium II, and Pentium III. */
cpuinfo_uarch_p6 = 0x00100200,
/** Pentium M. */
cpuinfo_uarch_dothan = 0x00100201,
/** Intel Core microarchitecture. */
cpuinfo_uarch_yonah = 0x00100202,
/** Intel Core 2 microarchitecture on 65 nm process. */
cpuinfo_uarch_conroe = 0x00100203,
/** Intel Core 2 microarchitecture on 45 nm process. */
cpuinfo_uarch_penryn = 0x00100204,
/** Intel Nehalem and Westmere microarchitectures (Core i3/i5/i7 1st
gen). */
cpuinfo_uarch_nehalem = 0x00100205,
/** Intel Sandy Bridge microarchitecture (Core i3/i5/i7 2nd gen). */
cpuinfo_uarch_sandy_bridge = 0x00100206,
/** Intel Ivy Bridge microarchitecture (Core i3/i5/i7 3rd gen). */
cpuinfo_uarch_ivy_bridge = 0x00100207,
/** Intel Haswell microarchitecture (Core i3/i5/i7 4th gen). */
cpuinfo_uarch_haswell = 0x00100208,
/** Intel Broadwell microarchitecture. */
cpuinfo_uarch_broadwell = 0x00100209,
/** Intel Sky Lake microarchitecture (14 nm, including
Kaby/Coffee/Whiskey/Amber/Comet/Cascade/Cooper Lake). */
cpuinfo_uarch_sky_lake = 0x0010020A,
/** DEPRECATED (Intel Kaby Lake microarchitecture). */
cpuinfo_uarch_kaby_lake = 0x0010020A,
/** Intel Palm Cove microarchitecture (10 nm, Cannon Lake). */
cpuinfo_uarch_palm_cove = 0x0010020B,
/** Intel Sunny Cove microarchitecture (10 nm, Ice Lake). */
cpuinfo_uarch_sunny_cove = 0x0010020C,
/** Pentium 4 with Willamette, Northwood, or Foster cores. */
cpuinfo_uarch_willamette = 0x00100300,
/** Pentium 4 with Prescott and later cores. */
cpuinfo_uarch_prescott = 0x00100301,
/** Intel Atom on 45 nm process. */
cpuinfo_uarch_bonnell = 0x00100400,
/** Intel Atom on 32 nm process. */
cpuinfo_uarch_saltwell = 0x00100401,
/** Intel Silvermont microarchitecture (22 nm out-of-order Atom). */
cpuinfo_uarch_silvermont = 0x00100402,
/** Intel Airmont microarchitecture (14 nm out-of-order Atom). */
cpuinfo_uarch_airmont = 0x00100403,
/** Intel Goldmont microarchitecture (Denverton, Apollo Lake). */
cpuinfo_uarch_goldmont = 0x00100404,
/** Intel Goldmont Plus microarchitecture (Gemini Lake). */
cpuinfo_uarch_goldmont_plus = 0x00100405,
/** Intel Knights Ferry HPC boards. */
cpuinfo_uarch_knights_ferry = 0x00100500,
/** Intel Knights Corner HPC boards (aka Xeon Phi). */
cpuinfo_uarch_knights_corner = 0x00100501,
/** Intel Knights Landing microarchitecture (second-gen MIC). */
cpuinfo_uarch_knights_landing = 0x00100502,
/** Intel Knights Hill microarchitecture (third-gen MIC). */
cpuinfo_uarch_knights_hill = 0x00100503,
/** Intel Knights Mill Xeon Phi. */
cpuinfo_uarch_knights_mill = 0x00100504,
/** Intel/Marvell XScale series. */
cpuinfo_uarch_xscale = 0x00100600,
/** AMD K5. */
cpuinfo_uarch_k5 = 0x00200100,
/** AMD K6 and alike. */
cpuinfo_uarch_k6 = 0x00200101,
/** AMD Athlon and Duron. */
cpuinfo_uarch_k7 = 0x00200102,
/** AMD Athlon 64, Opteron 64. */
cpuinfo_uarch_k8 = 0x00200103,
/** AMD Family 10h (Barcelona, Istambul, Magny-Cours). */
cpuinfo_uarch_k10 = 0x00200104,
/**
* AMD Bulldozer microarchitecture
* Zambezi FX-series CPUs, Zurich, Valencia and Interlagos Opteron CPUs.
*/
cpuinfo_uarch_bulldozer = 0x00200105,
/**
* AMD Piledriver microarchitecture
* Vishera FX-series CPUs, Trinity and Richland APUs, Delhi, Seoul, Abu
* Dhabi Opteron CPUs.
*/
cpuinfo_uarch_piledriver = 0x00200106,
/** AMD Steamroller microarchitecture (Kaveri APUs). */
cpuinfo_uarch_steamroller = 0x00200107,
/** AMD Excavator microarchitecture (Carizzo APUs). */
cpuinfo_uarch_excavator = 0x00200108,
/** AMD Zen microarchitecture (12/14 nm Ryzen and EPYC CPUs). */
cpuinfo_uarch_zen = 0x00200109,
/** AMD Zen 2 microarchitecture (7 nm Ryzen and EPYC CPUs). */
cpuinfo_uarch_zen2 = 0x0020010A,
/** AMD Zen 3 microarchitecture. */
cpuinfo_uarch_zen3 = 0x0020010B,
/** AMD Zen 4 microarchitecture. */
cpuinfo_uarch_zen4 = 0x0020010C,
/** NSC Geode and AMD Geode GX and LX. */
cpuinfo_uarch_geode = 0x00200200,
/** AMD Bobcat mobile microarchitecture. */
cpuinfo_uarch_bobcat = 0x00200201,
/** AMD Jaguar mobile microarchitecture. */
cpuinfo_uarch_jaguar = 0x00200202,
/** AMD Puma mobile microarchitecture. */
cpuinfo_uarch_puma = 0x00200203,
/** ARM7 series. */
cpuinfo_uarch_arm7 = 0x00300100,
/** ARM9 series. */
cpuinfo_uarch_arm9 = 0x00300101,
/** ARM 1136, ARM 1156, ARM 1176, or ARM 11MPCore. */
cpuinfo_uarch_arm11 = 0x00300102,
/** ARM Cortex-A5. */
cpuinfo_uarch_cortex_a5 = 0x00300205,
/** ARM Cortex-A7. */
cpuinfo_uarch_cortex_a7 = 0x00300207,
/** ARM Cortex-A8. */
cpuinfo_uarch_cortex_a8 = 0x00300208,
/** ARM Cortex-A9. */
cpuinfo_uarch_cortex_a9 = 0x00300209,
/** ARM Cortex-A12. */
cpuinfo_uarch_cortex_a12 = 0x00300212,
/** ARM Cortex-A15. */
cpuinfo_uarch_cortex_a15 = 0x00300215,
/** ARM Cortex-A17. */
cpuinfo_uarch_cortex_a17 = 0x00300217,
/** ARM Cortex-A32. */
cpuinfo_uarch_cortex_a32 = 0x00300332,
/** ARM Cortex-A35. */
cpuinfo_uarch_cortex_a35 = 0x00300335,
/** ARM Cortex-A53. */
cpuinfo_uarch_cortex_a53 = 0x00300353,
/** ARM Cortex-A55 revision 0 (restricted dual-issue capabilities
compared to revision 1+). */
cpuinfo_uarch_cortex_a55r0 = 0x00300354,
/** ARM Cortex-A55. */
cpuinfo_uarch_cortex_a55 = 0x00300355,
/** ARM Cortex-A57. */
cpuinfo_uarch_cortex_a57 = 0x00300357,
/** ARM Cortex-A65. */
cpuinfo_uarch_cortex_a65 = 0x00300365,
/** ARM Cortex-A72. */
cpuinfo_uarch_cortex_a72 = 0x00300372,
/** ARM Cortex-A73. */
cpuinfo_uarch_cortex_a73 = 0x00300373,
/** ARM Cortex-A75. */
cpuinfo_uarch_cortex_a75 = 0x00300375,
/** ARM Cortex-A76. */
cpuinfo_uarch_cortex_a76 = 0x00300376,
/** ARM Cortex-A77. */
cpuinfo_uarch_cortex_a77 = 0x00300377,
/** ARM Cortex-A78. */
cpuinfo_uarch_cortex_a78 = 0x00300378,
/** ARM Neoverse N1. */
cpuinfo_uarch_neoverse_n1 = 0x00300400,
/** ARM Neoverse E1. */
cpuinfo_uarch_neoverse_e1 = 0x00300401,
/** ARM Neoverse V1. */
cpuinfo_uarch_neoverse_v1 = 0x00300402,
/** ARM Neoverse N2. */
cpuinfo_uarch_neoverse_n2 = 0x00300403,
/** ARM Neoverse V2. */
cpuinfo_uarch_neoverse_v2 = 0x00300404,
/** ARM Cortex-X1. */
cpuinfo_uarch_cortex_x1 = 0x00300501,
/** ARM Cortex-X2. */
cpuinfo_uarch_cortex_x2 = 0x00300502,
/** ARM Cortex-X3. */
cpuinfo_uarch_cortex_x3 = 0x00300503,
/** ARM Cortex-A510. */
cpuinfo_uarch_cortex_a510 = 0x00300551,
/** ARM Cortex-A710. */
cpuinfo_uarch_cortex_a710 = 0x00300571,
/** ARM Cortex-A715. */
cpuinfo_uarch_cortex_a715 = 0x00300572,
/** Qualcomm Scorpion. */
cpuinfo_uarch_scorpion = 0x00400100,
/** Qualcomm Krait. */
cpuinfo_uarch_krait = 0x00400101,
/** Qualcomm Kryo. */
cpuinfo_uarch_kryo = 0x00400102,
/** Qualcomm Falkor. */
cpuinfo_uarch_falkor = 0x00400103,
/** Qualcomm Saphira. */
cpuinfo_uarch_saphira = 0x00400104,
/** Nvidia Denver. */
cpuinfo_uarch_denver = 0x00500100,
/** Nvidia Denver 2. */
cpuinfo_uarch_denver2 = 0x00500101,
/** Nvidia Carmel. */
cpuinfo_uarch_carmel = 0x00500102,
/** Samsung Exynos M1 (Exynos 8890 big cores). */
cpuinfo_uarch_exynos_m1 = 0x00600100,
/** Samsung Exynos M2 (Exynos 8895 big cores). */
cpuinfo_uarch_exynos_m2 = 0x00600101,
/** Samsung Exynos M3 (Exynos 9810 big cores). */
cpuinfo_uarch_exynos_m3 = 0x00600102,
/** Samsung Exynos M4 (Exynos 9820 big cores). */
cpuinfo_uarch_exynos_m4 = 0x00600103,
/** Samsung Exynos M5 (Exynos 9830 big cores). */
cpuinfo_uarch_exynos_m5 = 0x00600104,
/* Deprecated synonym for Cortex-A76 */
cpuinfo_uarch_cortex_a76ae = 0x00300376,
/* Deprecated names for Exynos. */
cpuinfo_uarch_mongoose_m1 = 0x00600100,
cpuinfo_uarch_mongoose_m2 = 0x00600101,
cpuinfo_uarch_meerkat_m3 = 0x00600102,
cpuinfo_uarch_meerkat_m4 = 0x00600103,
/** Apple A6 and A6X processors. */
cpuinfo_uarch_swift = 0x00700100,
/** Apple A7 processor. */
cpuinfo_uarch_cyclone = 0x00700101,
/** Apple A8 and A8X processor. */
cpuinfo_uarch_typhoon = 0x00700102,
/** Apple A9 and A9X processor. */
cpuinfo_uarch_twister = 0x00700103,
/** Apple A10 and A10X processor. */
cpuinfo_uarch_hurricane = 0x00700104,
/** Apple A11 processor (big cores). */
cpuinfo_uarch_monsoon = 0x00700105,
/** Apple A11 processor (little cores). */
cpuinfo_uarch_mistral = 0x00700106,
/** Apple A12 processor (big cores). */
cpuinfo_uarch_vortex = 0x00700107,
/** Apple A12 processor (little cores). */
cpuinfo_uarch_tempest = 0x00700108,
/** Apple A13 processor (big cores). */
cpuinfo_uarch_lightning = 0x00700109,
/** Apple A13 processor (little cores). */
cpuinfo_uarch_thunder = 0x0070010A,
/** Apple A14 / M1 processor (big cores). */
cpuinfo_uarch_firestorm = 0x0070010B,
/** Apple A14 / M1 processor (little cores). */
cpuinfo_uarch_icestorm = 0x0070010C,
/** Apple A15 / M2 processor (big cores). */
cpuinfo_uarch_avalanche = 0x0070010D,
/** Apple A15 / M2 processor (little cores). */
cpuinfo_uarch_blizzard = 0x0070010E,
/** Cavium ThunderX. */
cpuinfo_uarch_thunderx = 0x00800100,
/** Cavium ThunderX2 (originally Broadcom Vulkan). */
cpuinfo_uarch_thunderx2 = 0x00800200,
/** Marvell PJ4. */
cpuinfo_uarch_pj4 = 0x00900100,
/** Broadcom Brahma B15. */
cpuinfo_uarch_brahma_b15 = 0x00A00100,
/** Broadcom Brahma B53. */
cpuinfo_uarch_brahma_b53 = 0x00A00101,
/** Applied Micro X-Gene. */
cpuinfo_uarch_xgene = 0x00B00100,
/* Hygon Dhyana (a modification of AMD Zen for Chinese market). */
cpuinfo_uarch_dhyana = 0x01000100,
/** HiSilicon TaiShan v110 (Huawei Kunpeng 920 series processors). */
cpuinfo_uarch_taishan_v110 = 0x00C00100,
};
struct cpuinfo_processor {
/** SMT (hyperthread) ID within a core */
uint32_t smt_id;
/** Core containing this logical processor */
const struct cpuinfo_core* core;
/** Cluster of cores containing this logical processor */
const struct cpuinfo_cluster* cluster;
/** Physical package containing this logical processor */
const struct cpuinfo_package* package;
#if defined(__linux__)
/**
* Linux-specific ID for the logical processor:
* - Linux kernel exposes information about this logical processor in
* /sys/devices/system/cpu/cpu<linux_id>/
* - Bit <linux_id> in the cpu_set_t identifies this logical processor
*/
int linux_id;
#endif
#if defined(_WIN32) || defined(__CYGWIN__)
/** Windows-specific ID for the group containing the logical processor.
*/
uint16_t windows_group_id;
/**
* Windows-specific ID of the logical processor within its group:
* - Bit <windows_processor_id> in the KAFFINITY mask identifies this
* logical processor within its group.
*/
uint16_t windows_processor_id;
#endif
#if CPUINFO_ARCH_X86 || CPUINFO_ARCH_X86_64
/** APIC ID (unique x86-specific ID of the logical processor) */
uint32_t apic_id;
#endif
struct {
/** Level 1 instruction cache */
const struct cpuinfo_cache* l1i;
/** Level 1 data cache */
const struct cpuinfo_cache* l1d;
/** Level 2 unified or data cache */
const struct cpuinfo_cache* l2;
/** Level 3 unified or data cache */
const struct cpuinfo_cache* l3;
/** Level 4 unified or data cache */
const struct cpuinfo_cache* l4;
} cache;
};
struct cpuinfo_core {
/** Index of the first logical processor on this core. */
uint32_t processor_start;
/** Number of logical processors on this core */
uint32_t processor_count;
/** Core ID within a package */
uint32_t core_id;
/** Cluster containing this core */
const struct cpuinfo_cluster* cluster;
/** Physical package containing this core. */
const struct cpuinfo_package* package;
/** Vendor of the CPU microarchitecture for this core */
enum cpuinfo_vendor vendor;
/** CPU microarchitecture for this core */
enum cpuinfo_uarch uarch;
#if CPUINFO_ARCH_X86 || CPUINFO_ARCH_X86_64
/** Value of CPUID leaf 1 EAX register for this core */
uint32_t cpuid;
#elif CPUINFO_ARCH_ARM || CPUINFO_ARCH_ARM64
/** Value of Main ID Register (MIDR) for this core */
uint32_t midr;
#endif
/** Clock rate (non-Turbo) of the core, in Hz */
uint64_t frequency;
};
struct cpuinfo_cluster {
/** Index of the first logical processor in the cluster */
uint32_t processor_start;
/** Number of logical processors in the cluster */
uint32_t processor_count;
/** Index of the first core in the cluster */
uint32_t core_start;
/** Number of cores on the cluster */
uint32_t core_count;
/** Cluster ID within a package */
uint32_t cluster_id;
/** Physical package containing the cluster */
const struct cpuinfo_package* package;
/** CPU microarchitecture vendor of the cores in the cluster */
enum cpuinfo_vendor vendor;
/** CPU microarchitecture of the cores in the cluster */
enum cpuinfo_uarch uarch;
#if CPUINFO_ARCH_X86 || CPUINFO_ARCH_X86_64
/** Value of CPUID leaf 1 EAX register of the cores in the cluster */
uint32_t cpuid;
#elif CPUINFO_ARCH_ARM || CPUINFO_ARCH_ARM64
/** Value of Main ID Register (MIDR) of the cores in the cluster */
uint32_t midr;
#endif
/** Clock rate (non-Turbo) of the cores in the cluster, in Hz */
uint64_t frequency;
};
#define CPUINFO_PACKAGE_NAME_MAX 48
struct cpuinfo_package {
/** SoC or processor chip model name */
char name[CPUINFO_PACKAGE_NAME_MAX];
/** Index of the first logical processor on this physical package */
uint32_t processor_start;
/** Number of logical processors on this physical package */
uint32_t processor_count;
/** Index of the first core on this physical package */
uint32_t core_start;
/** Number of cores on this physical package */
uint32_t core_count;
/** Index of the first cluster of cores on this physical package */
uint32_t cluster_start;
/** Number of clusters of cores on this physical package */
uint32_t cluster_count;
};
struct cpuinfo_uarch_info {
/** Type of CPU microarchitecture */
enum cpuinfo_uarch uarch;
#if CPUINFO_ARCH_X86 || CPUINFO_ARCH_X86_64
/** Value of CPUID leaf 1 EAX register for the microarchitecture */
uint32_t cpuid;
#elif CPUINFO_ARCH_ARM || CPUINFO_ARCH_ARM64
/** Value of Main ID Register (MIDR) for the microarchitecture */
uint32_t midr;
#endif
/** Number of logical processors with the microarchitecture */
uint32_t processor_count;
/** Number of cores with the microarchitecture */
uint32_t core_count;
};
#ifdef __cplusplus
extern "C" {
#endif
bool CPUINFO_ABI cpuinfo_initialize(void);
void CPUINFO_ABI cpuinfo_deinitialize(void);
#if CPUINFO_ARCH_X86 || CPUINFO_ARCH_X86_64
/* This structure is not a part of stable API. Use cpuinfo_has_x86_* functions
* instead. */
struct cpuinfo_x86_isa {
#if CPUINFO_ARCH_X86
bool rdtsc;
#endif
bool rdtscp;
bool rdpid;
bool sysenter;
#if CPUINFO_ARCH_X86
bool syscall;
#endif
bool msr;
bool clzero;
bool clflush;
bool clflushopt;
bool mwait;
bool mwaitx;
#if CPUINFO_ARCH_X86
bool emmx;
#endif
bool fxsave;
bool xsave;
#if CPUINFO_ARCH_X86
bool fpu;
bool mmx;
bool mmx_plus;
#endif
bool three_d_now;
bool three_d_now_plus;
#if CPUINFO_ARCH_X86
bool three_d_now_geode;
#endif
bool prefetch;
bool prefetchw;
bool prefetchwt1;
#if CPUINFO_ARCH_X86
bool daz;
bool sse;
bool sse2;
#endif
bool sse3;
bool ssse3;
bool sse4_1;
bool sse4_2;
bool sse4a;
bool misaligned_sse;
bool avx;
bool avxvnni;
bool fma3;
bool fma4;
bool xop;
bool f16c;
bool avx2;
bool avx512f;
bool avx512pf;
bool avx512er;
bool avx512cd;
bool avx512dq;
bool avx512bw;
bool avx512vl;
bool avx512ifma;
bool avx512vbmi;
bool avx512vbmi2;
bool avx512bitalg;
bool avx512vpopcntdq;
bool avx512vnni;
bool avx512bf16;
bool avx512fp16;
bool avx512vp2intersect;
bool avx512_4vnniw;
bool avx512_4fmaps;
bool amx_bf16;
bool amx_tile;
bool amx_int8;
bool amx_fp16;
bool avx_vnni_int8;
bool avx_vnni_int16;
bool avx_ne_convert;
bool hle;
bool rtm;
bool xtest;
bool mpx;
#if CPUINFO_ARCH_X86
bool cmov;
bool cmpxchg8b;
#endif
bool cmpxchg16b;
bool clwb;
bool movbe;
#if CPUINFO_ARCH_X86_64
bool lahf_sahf;
#endif
bool fs_gs_base;
bool lzcnt;
bool popcnt;
bool tbm;
bool bmi;
bool bmi2;
bool adx;
bool aes;
bool vaes;
bool pclmulqdq;
bool vpclmulqdq;
bool gfni;
bool rdrand;
bool rdseed;
bool sha;
bool rng;
bool ace;
bool ace2;
bool phe;
bool pmm;
bool lwp;
};
extern struct cpuinfo_x86_isa cpuinfo_isa;
#endif
static inline bool cpuinfo_has_x86_rdtsc(void) {
#if CPUINFO_ARCH_X86_64
return true;
#elif CPUINFO_ARCH_X86
#if defined(__ANDROID__)
return true;
#else
return cpuinfo_isa.rdtsc;
#endif
#else
return false;
#endif
}
static inline bool cpuinfo_has_x86_rdtscp(void) {
#if CPUINFO_ARCH_X86 || CPUINFO_ARCH_X86_64
return cpuinfo_isa.rdtscp;
#else
return false;
#endif
}
static inline bool cpuinfo_has_x86_rdpid(void) {
#if CPUINFO_ARCH_X86 || CPUINFO_ARCH_X86_64
return cpuinfo_isa.rdpid;
#else
return false;
#endif
}
static inline bool cpuinfo_has_x86_clzero(void) {
#if CPUINFO_ARCH_X86 || CPUINFO_ARCH_X86_64
return cpuinfo_isa.clzero;
#else
return false;
#endif
}
static inline bool cpuinfo_has_x86_mwait(void) {
#if CPUINFO_ARCH_X86 || CPUINFO_ARCH_X86_64
return cpuinfo_isa.mwait;
#else
return false;
#endif
}
static inline bool cpuinfo_has_x86_mwaitx(void) {
#if CPUINFO_ARCH_X86 || CPUINFO_ARCH_X86_64
return cpuinfo_isa.mwaitx;
#else
return false;
#endif
}
static inline bool cpuinfo_has_x86_fxsave(void) {
#if CPUINFO_ARCH_X86 || CPUINFO_ARCH_X86_64
return cpuinfo_isa.fxsave;
#else
return false;
#endif
}
static inline bool cpuinfo_has_x86_xsave(void) {
#if CPUINFO_ARCH_X86 || CPUINFO_ARCH_X86_64
return cpuinfo_isa.xsave;
#else
return false;
#endif
}
static inline bool cpuinfo_has_x86_fpu(void) {
#if CPUINFO_ARCH_X86_64
return true;
#elif CPUINFO_ARCH_X86
#if defined(__ANDROID__)
return true;
#else
return cpuinfo_isa.fpu;
#endif
#else
return false;
#endif
}
static inline bool cpuinfo_has_x86_mmx(void) {
#if CPUINFO_ARCH_X86_64
return true;
#elif CPUINFO_ARCH_X86
#if defined(__ANDROID__)
return true;
#else
return cpuinfo_isa.mmx;
#endif
#else
return false;
#endif
}
static inline bool cpuinfo_has_x86_mmx_plus(void) {
#if CPUINFO_ARCH_X86_64
return true;
#elif CPUINFO_ARCH_X86
#if defined(__ANDROID__)
return true;
#else
return cpuinfo_isa.mmx_plus;
#endif
#else
return false;
#endif
}
static inline bool cpuinfo_has_x86_3dnow(void) {
#if CPUINFO_ARCH_X86 || CPUINFO_ARCH_X86_64
return cpuinfo_isa.three_d_now;
#else
return false;
#endif
}
static inline bool cpuinfo_has_x86_3dnow_plus(void) {
#if CPUINFO_ARCH_X86 || CPUINFO_ARCH_X86_64
return cpuinfo_isa.three_d_now_plus;
#else
return false;
#endif
}
static inline bool cpuinfo_has_x86_3dnow_geode(void) {
#if CPUINFO_ARCH_X86_64
return false;
#elif CPUINFO_ARCH_X86
#if defined(__ANDROID__)
return false;
#else
return cpuinfo_isa.three_d_now_geode;
#endif
#else