#pragma once #include #include #include #include #include #include #include /* No hard limit in the kernel, maximum length observed on non-rogue kernels is 64 */ #define CPUINFO_HARDWARE_VALUE_MAX 64 /* No hard limit in the kernel, maximum length on Raspberry Pi is 8. Add 1 symbol to detect overly large revision strings */ #define CPUINFO_REVISION_VALUE_MAX 9 #ifdef __ANDROID__ /* As per include/sys/system_properties.h in Android NDK */ #define CPUINFO_BUILD_PROP_NAME_MAX 32 #define CPUINFO_BUILD_PROP_VALUE_MAX 92 struct cpuinfo_android_properties { char proc_cpuinfo_hardware[CPUINFO_HARDWARE_VALUE_MAX]; char ro_product_board[CPUINFO_BUILD_PROP_VALUE_MAX]; char ro_board_platform[CPUINFO_BUILD_PROP_VALUE_MAX]; char ro_mediatek_platform[CPUINFO_BUILD_PROP_VALUE_MAX]; char ro_arch[CPUINFO_BUILD_PROP_VALUE_MAX]; char ro_chipname[CPUINFO_BUILD_PROP_VALUE_MAX]; char ro_hardware_chipname[CPUINFO_BUILD_PROP_VALUE_MAX]; }; #endif #define CPUINFO_ARM_LINUX_ARCH_T UINT32_C(0x00000001) #define CPUINFO_ARM_LINUX_ARCH_E UINT32_C(0x00000002) #define CPUINFO_ARM_LINUX_ARCH_J UINT32_C(0x00000004) #define CPUINFO_ARM_LINUX_ARCH_TE UINT32_C(0x00000003) #define CPUINFO_ARM_LINUX_ARCH_TEJ UINT32_C(0x00000007) struct cpuinfo_arm_linux_proc_cpuinfo_cache { uint32_t i_size; uint32_t i_assoc; uint32_t i_line_length; uint32_t i_sets; uint32_t d_size; uint32_t d_assoc; uint32_t d_line_length; uint32_t d_sets; }; #if CPUINFO_ARCH_ARM /* arch/arm/include/uapi/asm/hwcap.h */ #define CPUINFO_ARM_LINUX_FEATURE_SWP UINT32_C(0x00000001) #define CPUINFO_ARM_LINUX_FEATURE_HALF UINT32_C(0x00000002) #define CPUINFO_ARM_LINUX_FEATURE_THUMB UINT32_C(0x00000004) #define CPUINFO_ARM_LINUX_FEATURE_26BIT UINT32_C(0x00000008) #define CPUINFO_ARM_LINUX_FEATURE_FASTMULT UINT32_C(0x00000010) #define CPUINFO_ARM_LINUX_FEATURE_FPA UINT32_C(0x00000020) #define CPUINFO_ARM_LINUX_FEATURE_VFP UINT32_C(0x00000040) #define CPUINFO_ARM_LINUX_FEATURE_EDSP UINT32_C(0x00000080) #define CPUINFO_ARM_LINUX_FEATURE_JAVA UINT32_C(0x00000100) #define CPUINFO_ARM_LINUX_FEATURE_IWMMXT UINT32_C(0x00000200) #define CPUINFO_ARM_LINUX_FEATURE_CRUNCH UINT32_C(0x00000400) #define CPUINFO_ARM_LINUX_FEATURE_THUMBEE UINT32_C(0x00000800) #define CPUINFO_ARM_LINUX_FEATURE_NEON UINT32_C(0x00001000) #define CPUINFO_ARM_LINUX_FEATURE_VFPV3 UINT32_C(0x00002000) #define CPUINFO_ARM_LINUX_FEATURE_VFPV3D16 UINT32_C(0x00004000) /* Also set for VFPv4 with 16 double-precision registers */ #define CPUINFO_ARM_LINUX_FEATURE_TLS UINT32_C(0x00008000) #define CPUINFO_ARM_LINUX_FEATURE_VFPV4 UINT32_C(0x00010000) #define CPUINFO_ARM_LINUX_FEATURE_IDIVA UINT32_C(0x00020000) #define CPUINFO_ARM_LINUX_FEATURE_IDIVT UINT32_C(0x00040000) #define CPUINFO_ARM_LINUX_FEATURE_IDIV UINT32_C(0x00060000) #define CPUINFO_ARM_LINUX_FEATURE_VFPD32 UINT32_C(0x00080000) #define CPUINFO_ARM_LINUX_FEATURE_LPAE UINT32_C(0x00100000) #define CPUINFO_ARM_LINUX_FEATURE_EVTSTRM UINT32_C(0x00200000) #define CPUINFO_ARM_LINUX_FEATURE2_AES UINT32_C(0x00000001) #define CPUINFO_ARM_LINUX_FEATURE2_PMULL UINT32_C(0x00000002) #define CPUINFO_ARM_LINUX_FEATURE2_SHA1 UINT32_C(0x00000004) #define CPUINFO_ARM_LINUX_FEATURE2_SHA2 UINT32_C(0x00000008) #define CPUINFO_ARM_LINUX_FEATURE2_CRC32 UINT32_C(0x00000010) #elif CPUINFO_ARCH_ARM64 /* arch/arm64/include/uapi/asm/hwcap.h */ #define CPUINFO_ARM_LINUX_FEATURE_FP UINT32_C(0x00000001) #define CPUINFO_ARM_LINUX_FEATURE_ASIMD UINT32_C(0x00000002) #define CPUINFO_ARM_LINUX_FEATURE_EVTSTRM UINT32_C(0x00000004) #define CPUINFO_ARM_LINUX_FEATURE_AES UINT32_C(0x00000008) #define CPUINFO_ARM_LINUX_FEATURE_PMULL UINT32_C(0x00000010) #define CPUINFO_ARM_LINUX_FEATURE_SHA1 UINT32_C(0x00000020) #define CPUINFO_ARM_LINUX_FEATURE_SHA2 UINT32_C(0x00000040) #define CPUINFO_ARM_LINUX_FEATURE_CRC32 UINT32_C(0x00000080) #define CPUINFO_ARM_LINUX_FEATURE_ATOMICS UINT32_C(0x00000100) #define CPUINFO_ARM_LINUX_FEATURE_FPHP UINT32_C(0x00000200) #define CPUINFO_ARM_LINUX_FEATURE_ASIMDHP UINT32_C(0x00000400) #define CPUINFO_ARM_LINUX_FEATURE_CPUID UINT32_C(0x00000800) #define CPUINFO_ARM_LINUX_FEATURE_ASIMDRDM UINT32_C(0x00001000) #define CPUINFO_ARM_LINUX_FEATURE_JSCVT UINT32_C(0x00002000) #define CPUINFO_ARM_LINUX_FEATURE_FCMA UINT32_C(0x00004000) #define CPUINFO_ARM_LINUX_FEATURE_LRCPC UINT32_C(0x00008000) #define CPUINFO_ARM_LINUX_FEATURE_DCPOP UINT32_C(0x00010000) #define CPUINFO_ARM_LINUX_FEATURE_SHA3 UINT32_C(0x00020000) #define CPUINFO_ARM_LINUX_FEATURE_SM3 UINT32_C(0x00040000) #define CPUINFO_ARM_LINUX_FEATURE_SM4 UINT32_C(0x00080000) #define CPUINFO_ARM_LINUX_FEATURE_ASIMDDP UINT32_C(0x00100000) #define CPUINFO_ARM_LINUX_FEATURE_SHA512 UINT32_C(0x00200000) #define CPUINFO_ARM_LINUX_FEATURE_SVE UINT32_C(0x00400000) #define CPUINFO_ARM_LINUX_FEATURE_ASIMDFHM UINT32_C(0x00800000) #define CPUINFO_ARM_LINUX_FEATURE_DIT UINT32_C(0x01000000) #define CPUINFO_ARM_LINUX_FEATURE_USCAT UINT32_C(0x02000000) #define CPUINFO_ARM_LINUX_FEATURE_ILRCPC UINT32_C(0x04000000) #define CPUINFO_ARM_LINUX_FEATURE_FLAGM UINT32_C(0x08000000) #define CPUINFO_ARM_LINUX_FEATURE_SSBS UINT32_C(0x10000000) #define CPUINFO_ARM_LINUX_FEATURE_SB UINT32_C(0x20000000) #define CPUINFO_ARM_LINUX_FEATURE_PACA UINT32_C(0x40000000) #define CPUINFO_ARM_LINUX_FEATURE_PACG UINT32_C(0x80000000) #define CPUINFO_ARM_LINUX_FEATURE2_DCPODP UINT32_C(0x00000001) #define CPUINFO_ARM_LINUX_FEATURE2_SVE2 UINT32_C(0x00000002) #define CPUINFO_ARM_LINUX_FEATURE2_SVEAES UINT32_C(0x00000004) #define CPUINFO_ARM_LINUX_FEATURE2_SVEPMULL UINT32_C(0x00000008) #define CPUINFO_ARM_LINUX_FEATURE2_SVEBITPERM UINT32_C(0x00000010) #define CPUINFO_ARM_LINUX_FEATURE2_SVESHA3 UINT32_C(0x00000020) #define CPUINFO_ARM_LINUX_FEATURE2_SVESM4 UINT32_C(0x00000040) #define CPUINFO_ARM_LINUX_FEATURE2_FLAGM2 UINT32_C(0x00000080) #define CPUINFO_ARM_LINUX_FEATURE2_FRINT UINT32_C(0x00000100) #define CPUINFO_ARM_LINUX_FEATURE2_SVEI8MM UINT32_C(0x00000200) #define CPUINFO_ARM_LINUX_FEATURE2_SVEF32MM UINT32_C(0x00000400) #define CPUINFO_ARM_LINUX_FEATURE2_SVEF64MM UINT32_C(0x00000800) #define CPUINFO_ARM_LINUX_FEATURE2_SVEBF16 UINT32_C(0x00001000) #define CPUINFO_ARM_LINUX_FEATURE2_I8MM UINT32_C(0x00002000) #define CPUINFO_ARM_LINUX_FEATURE2_BF16 UINT32_C(0x00004000) #define CPUINFO_ARM_LINUX_FEATURE2_DGH UINT32_C(0x00008000) #define CPUINFO_ARM_LINUX_FEATURE2_RNG UINT32_C(0x00010000) #define CPUINFO_ARM_LINUX_FEATURE2_BTI UINT32_C(0x00020000) #endif #define CPUINFO_ARM_LINUX_VALID_ARCHITECTURE UINT32_C(0x00010000) #define CPUINFO_ARM_LINUX_VALID_IMPLEMENTER UINT32_C(0x00020000) #define CPUINFO_ARM_LINUX_VALID_VARIANT UINT32_C(0x00040000) #define CPUINFO_ARM_LINUX_VALID_PART UINT32_C(0x00080000) #define CPUINFO_ARM_LINUX_VALID_REVISION UINT32_C(0x00100000) #define CPUINFO_ARM_LINUX_VALID_PROCESSOR UINT32_C(0x00200000) #define CPUINFO_ARM_LINUX_VALID_FEATURES UINT32_C(0x00400000) #if CPUINFO_ARCH_ARM #define CPUINFO_ARM_LINUX_VALID_ICACHE_SIZE UINT32_C(0x01000000) #define CPUINFO_ARM_LINUX_VALID_ICACHE_SETS UINT32_C(0x02000000) #define CPUINFO_ARM_LINUX_VALID_ICACHE_WAYS UINT32_C(0x04000000) #define CPUINFO_ARM_LINUX_VALID_ICACHE_LINE UINT32_C(0x08000000) #define CPUINFO_ARM_LINUX_VALID_DCACHE_SIZE UINT32_C(0x10000000) #define CPUINFO_ARM_LINUX_VALID_DCACHE_SETS UINT32_C(0x20000000) #define CPUINFO_ARM_LINUX_VALID_DCACHE_WAYS UINT32_C(0x40000000) #define CPUINFO_ARM_LINUX_VALID_DCACHE_LINE UINT32_C(0x80000000) #endif #define CPUINFO_ARM_LINUX_VALID_INFO UINT32_C(0x007F0000) #define CPUINFO_ARM_LINUX_VALID_MIDR UINT32_C(0x003F0000) #if CPUINFO_ARCH_ARM #define CPUINFO_ARM_LINUX_VALID_ICACHE UINT32_C(0x0F000000) #define CPUINFO_ARM_LINUX_VALID_DCACHE UINT32_C(0xF0000000) #define CPUINFO_ARM_LINUX_VALID_CACHE_LINE UINT32_C(0x88000000) #endif struct cpuinfo_arm_linux_processor { uint32_t architecture_version; #if CPUINFO_ARCH_ARM uint32_t architecture_flags; struct cpuinfo_arm_linux_proc_cpuinfo_cache proc_cpuinfo_cache; #endif uint32_t features; uint32_t features2; /** * Main ID Register value. */ uint32_t midr; enum cpuinfo_vendor vendor; enum cpuinfo_uarch uarch; uint32_t uarch_index; /** * ID of the physical package which includes this logical processor. * The value is parsed from /sys/devices/system/cpu/cpu/topology/physical_package_id */ uint32_t package_id; /** * Minimum processor ID on the package which includes this logical processor. * This value can serve as an ID for the cluster of logical processors: it is the * same for all logical processors on the same package. */ uint32_t package_leader_id; /** * Number of logical processors in the package. */ uint32_t package_processor_count; /** * Maximum frequency, in kHZ. * The value is parsed from /sys/devices/system/cpu/cpu/cpufreq/cpuinfo_max_freq * If failed to read or parse the file, the value is 0. */ uint32_t max_frequency; /** * Minimum frequency, in kHZ. * The value is parsed from /sys/devices/system/cpu/cpu/cpufreq/cpuinfo_min_freq * If failed to read or parse the file, the value is 0. */ uint32_t min_frequency; /** Linux processor ID */ uint32_t system_processor_id; uint32_t flags; }; struct cpuinfo_arm_linux_cluster { uint32_t processor_id_min; uint32_t processor_id_max; }; /* Returns true if the two processors do belong to the same cluster */ static inline bool cpuinfo_arm_linux_processor_equals( struct cpuinfo_arm_linux_processor processor_i[restrict static 1], struct cpuinfo_arm_linux_processor processor_j[restrict static 1]) { const uint32_t joint_flags = processor_i->flags & processor_j->flags; bool same_max_frequency = false; if (joint_flags & CPUINFO_LINUX_FLAG_MAX_FREQUENCY) { if (processor_i->max_frequency != processor_j->max_frequency) { return false; } else { same_max_frequency = true; } } bool same_min_frequency = false; if (joint_flags & CPUINFO_LINUX_FLAG_MIN_FREQUENCY) { if (processor_i->min_frequency != processor_j->min_frequency) { return false; } else { same_min_frequency = true; } } if ((joint_flags & CPUINFO_ARM_LINUX_VALID_MIDR) == CPUINFO_ARM_LINUX_VALID_MIDR) { if (processor_i->midr == processor_j->midr) { if (midr_is_cortex_a53(processor_i->midr)) { return same_min_frequency & same_max_frequency; } else { return true; } } } return same_max_frequency && same_min_frequency; } /* Returns true if the two processors certainly don't belong to the same cluster */ static inline bool cpuinfo_arm_linux_processor_not_equals( struct cpuinfo_arm_linux_processor processor_i[restrict static 1], struct cpuinfo_arm_linux_processor processor_j[restrict static 1]) { const uint32_t joint_flags = processor_i->flags & processor_j->flags; if (joint_flags & CPUINFO_LINUX_FLAG_MAX_FREQUENCY) { if (processor_i->max_frequency != processor_j->max_frequency) { return true; } } if (joint_flags & CPUINFO_LINUX_FLAG_MIN_FREQUENCY) { if (processor_i->min_frequency != processor_j->min_frequency) { return true; } } if ((joint_flags & CPUINFO_ARM_LINUX_VALID_MIDR) == CPUINFO_ARM_LINUX_VALID_MIDR) { if (processor_i->midr != processor_j->midr) { return true; } } return false; } CPUINFO_INTERNAL bool cpuinfo_arm_linux_parse_proc_cpuinfo( char hardware[restrict static CPUINFO_HARDWARE_VALUE_MAX], char revision[restrict static CPUINFO_REVISION_VALUE_MAX], uint32_t max_processors_count, struct cpuinfo_arm_linux_processor processors[restrict static max_processors_count]); #if CPUINFO_ARCH_ARM CPUINFO_INTERNAL bool cpuinfo_arm_linux_hwcap_from_getauxval( uint32_t hwcap[restrict static 1], uint32_t hwcap2[restrict static 1]); CPUINFO_INTERNAL bool cpuinfo_arm_linux_hwcap_from_procfs( uint32_t hwcap[restrict static 1], uint32_t hwcap2[restrict static 1]); CPUINFO_INTERNAL void cpuinfo_arm_linux_decode_isa_from_proc_cpuinfo( uint32_t features, uint32_t features2, uint32_t midr, uint32_t architecture_version, uint32_t architecture_flags, const struct cpuinfo_arm_chipset chipset[restrict static 1], struct cpuinfo_arm_isa isa[restrict static 1]); #elif CPUINFO_ARCH_ARM64 CPUINFO_INTERNAL void cpuinfo_arm_linux_hwcap_from_getauxval( uint32_t hwcap[restrict static 1], uint32_t hwcap2[restrict static 1]); CPUINFO_INTERNAL void cpuinfo_arm64_linux_decode_isa_from_proc_cpuinfo( uint32_t features, uint32_t features2, uint32_t midr, const struct cpuinfo_arm_chipset chipset[restrict static 1], struct cpuinfo_arm_isa isa[restrict static 1]); #endif #ifdef __ANDROID__ CPUINFO_INTERNAL struct cpuinfo_arm_chipset cpuinfo_arm_android_decode_chipset( const struct cpuinfo_android_properties properties[restrict static 1], uint32_t cores, uint32_t max_cpu_freq_max); #else CPUINFO_INTERNAL struct cpuinfo_arm_chipset cpuinfo_arm_linux_decode_chipset( const char hardware[restrict static CPUINFO_HARDWARE_VALUE_MAX], const char revision[restrict static CPUINFO_REVISION_VALUE_MAX], uint32_t cores, uint32_t max_cpu_freq_max); #endif CPUINFO_INTERNAL struct cpuinfo_arm_chipset cpuinfo_arm_linux_decode_chipset_from_proc_cpuinfo_hardware( const char proc_cpuinfo_hardware[restrict static CPUINFO_HARDWARE_VALUE_MAX], uint32_t cores, uint32_t max_cpu_freq_max, bool is_tegra); #ifdef __ANDROID__ CPUINFO_INTERNAL struct cpuinfo_arm_chipset cpuinfo_arm_android_decode_chipset_from_ro_product_board( const char ro_product_board[restrict static CPUINFO_BUILD_PROP_VALUE_MAX], uint32_t cores, uint32_t max_cpu_freq_max); CPUINFO_INTERNAL struct cpuinfo_arm_chipset cpuinfo_arm_android_decode_chipset_from_ro_board_platform( const char ro_board_platform[restrict static CPUINFO_BUILD_PROP_VALUE_MAX], uint32_t cores, uint32_t max_cpu_freq_max); CPUINFO_INTERNAL struct cpuinfo_arm_chipset cpuinfo_arm_android_decode_chipset_from_ro_mediatek_platform( const char ro_mediatek_platform[restrict static CPUINFO_BUILD_PROP_VALUE_MAX]); CPUINFO_INTERNAL struct cpuinfo_arm_chipset cpuinfo_arm_android_decode_chipset_from_ro_arch( const char ro_arch[restrict static CPUINFO_BUILD_PROP_VALUE_MAX]); CPUINFO_INTERNAL struct cpuinfo_arm_chipset cpuinfo_arm_android_decode_chipset_from_ro_chipname( const char ro_chipname[restrict static CPUINFO_BUILD_PROP_VALUE_MAX]); CPUINFO_INTERNAL struct cpuinfo_arm_chipset cpuinfo_arm_android_decode_chipset_from_ro_hardware_chipname( const char ro_hardware_chipname[restrict static CPUINFO_BUILD_PROP_VALUE_MAX]); #else CPUINFO_INTERNAL struct cpuinfo_arm_chipset cpuinfo_arm_linux_decode_chipset_from_proc_cpuinfo_revision( const char proc_cpuinfo_revision[restrict static CPUINFO_REVISION_VALUE_MAX]); #endif CPUINFO_INTERNAL bool cpuinfo_arm_linux_detect_core_clusters_by_heuristic( uint32_t usable_processors, uint32_t max_processors, struct cpuinfo_arm_linux_processor processors[restrict static max_processors]); CPUINFO_INTERNAL void cpuinfo_arm_linux_detect_core_clusters_by_sequential_scan( uint32_t max_processors, struct cpuinfo_arm_linux_processor processors[restrict static max_processors]); CPUINFO_INTERNAL void cpuinfo_arm_linux_count_cluster_processors( uint32_t max_processors, struct cpuinfo_arm_linux_processor processors[restrict static max_processors]); CPUINFO_INTERNAL uint32_t cpuinfo_arm_linux_detect_cluster_midr( const struct cpuinfo_arm_chipset chipset[restrict static 1], uint32_t max_processors, uint32_t usable_processors, struct cpuinfo_arm_linux_processor processors[restrict static max_processors]); extern CPUINFO_INTERNAL const uint32_t* cpuinfo_linux_cpu_to_uarch_index_map; extern CPUINFO_INTERNAL uint32_t cpuinfo_linux_cpu_to_uarch_index_map_entries;