// SPDX-License-Identifier: GPL-2.0 #ifndef CPUINFO_H #define CPUINFO_H /** * \file * * Provides information about the CPU type, clock speed and cache sizes. * *//* * Copyright (C) 2020-2022 Martin Whitaker. * Copyright (C) 2004-2022 Sam Demeulemeester. */ #include #include /** * IMC Definition */ #define IMC_NHM 0x1000 // Core i7 1st Gen 45 nm (Nehalem/Bloomfield) #define IMC_WMR 0x1010 // Core 1st Gen 32 nm (Westmere) #define IMC_SNB 0x1020 // Core 2nd Gen (Sandy Bridge) #define IMC_IVB 0x1030 // Core 3rd Gen (Ivy Bridge) #define IMC_HSW 0x1040 // Core 4th Gen (Haswell) #define IMC_BDW 0x1050 // Core 5th Gen (Broadwell) #define IMC_SKL 0x1060 // Core 6th Gen (Sky Lake-S/H/E) #define IMC_KBL 0x1070 // Core 7/8/9th Gen (Kaby/Coffee/Comet Lake) #define IMC_CNL 0x1080 // Cannon Lake #define IMC_RKL 0x1090 // Core 11th Gen (Rocket Lake) #define IMC_ADL 0x1100 // Core 12th Gen (Alder Lake-S) #define IMC_RPL 0x1110 // Core 13th Gen (Raptor Lake) #define IMC_MTL 0x1120 // Core 14th Gen (Meteor Lake) #define IMC_NHM_E 0x2010 // Core i7 1st Gen 45 nm (Nehalem-E) #define IMC_SNB_E 0x2020 // Core 2nd Gen (Sandy Bridge-E) #define IMC_IVB_E 0x2030 // Core 3rd Gen (Ivy Bridge-E) #define IMC_HSW_E 0x2040 // Core 3rd Gen (Haswell-E) #define IMC_SKL_SP 0x2050 // Skylake/Cascade Lake/Cooper Lake (Server) #define IMC_BDW_E 0x2060 // Broadwell-E (Server) #define IMC_BDW_DE 0x2070 // Broadwell-DE (Server) #define IMC_ICL_SP 0x2080 // Ice Lake-SP/DE (Server) #define IMC_SPR 0x2090 // Sapphire Rapids (Server) #define IMC_HSW_ULT 0x3010 // Core 4th Gen (Haswell-ULT) #define IMC_SKL_UY 0x3020 // Core 6th Gen (Sky Lake-U/Y) #define IMC_KBL_UY 0x3030 // Core 7/8/9th Gen (Kaby/Coffee/Comet/Amber Lake-U/Y) #define IMC_ICL 0x3040 // Core 10th Gen (IceLake-Y) #define IMC_TGL 0x3050 // Core 11th Gen (Tiger Lake-U) #define IMC_BYT 0x4010 // Atom Bay Trail #define IMC_CDT 0x4020 // Atom Cedar Trail #define IMC_K8 0x8000 // Old K8 #define IMC_K10 0x8010 // K10 (Family 10h & 11h) #define IMC_K12 0x8020 // A-Series APU (Family 12h) #define IMC_K14 0x8030 // C- / E- / Z- Series APU (Family 14h) #define IMC_K15 0x8040 // FX Series (Family 15h) #define IMC_K16 0x8050 // Kabini & related (Family 16h) #define IMC_K17 0x8060 // Zen & Zen2 (Family 17h) #define IMC_K18 0x8070 // Hygon (Family 18h) #define IMC_K19 0x8080 // Zen3 & Zen4(Family 19h) #define IMC_K19_CZN 0x8081 // Cezanne APU /** * A string identifying the CPU make and model. */ extern const char *cpu_model; /** * A number identifying the integrated memory controller type. */ extern uint16_t imc_type; /** * The size of the L1 cache in KB. */ extern int l1_cache; /** * The size of the L2 cache in KB. */ extern int l2_cache; /** * The size of the L3 cache in KB. */ extern int l3_cache; /** * The bandwidth of the L1 cache */ extern uint32_t l1_cache_speed; /** * The bandwidth of the L2 cache */ extern uint32_t l2_cache_speed; /** * The bandwidth of the L3 cache */ extern uint32_t l3_cache_speed; /** * The bandwidth of the RAM */ extern uint32_t ram_speed; /** * A flag indicating that we can't read the core temperature on this CPU. */ extern bool no_temperature; /** * The TSC clock speed in kHz. Assumed to be the nominal CPU clock speed. */ extern uint32_t clks_per_msec; /** * Determines the CPU info and stores it in the exported variables. */ void cpuinfo_init(void); /** * Determines the RAM & caches bandwidth and stores it in the exported variables. */ void membw_init(void); #endif // CPUINFO_H