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zend_cpuinfo.h
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/* +----------------------------------------------------------------------+ | Zend Engine | +----------------------------------------------------------------------+ | Copyright (c) Zend Technologies Ltd. (http://www.zend.com) | +----------------------------------------------------------------------+ | This source file is subject to version 2.00 of the Zend license, | | that is bundled with this package in the file LICENSE, and is | | available through the world-wide-web at the following url: | | http://www.zend.com/license/2_00.txt. | | If you did not receive a copy of the Zend license and are unable to | | obtain it through the world-wide-web, please send a note to | | license@zend.com so we can mail you a copy immediately. | +----------------------------------------------------------------------+ | Authors: Xinchen Hui <laruence@php.net> | +----------------------------------------------------------------------+ */ #ifndef ZEND_CPU_INFO_H #define ZEND_CPU_INFO_H #include "zend.h" #define ZEND_CPU_EBX_MASK (1<<30) #define ZEND_CPU_EDX_MASK (1U<<31) typedef enum _zend_cpu_feature { /* ECX */ ZEND_CPU_FEATURE_SSE3 = (1<<0), ZEND_CPU_FEATURE_PCLMULQDQ = (1<<1), ZEND_CPU_FEATURE_DTES64 = (1<<2), ZEND_CPU_FEATURE_MONITOR = (1<<3), ZEND_CPU_FEATURE_DSCPL = (1<<4), ZEND_CPU_FEATURE_VMX = (1<<5), ZEND_CPU_FEATURE_SMX = (1<<6), ZEND_CPU_FEATURE_EST = (1<<7), ZEND_CPU_FEATURE_TM2 = (1<<8), ZEND_CPU_FEATURE_SSSE3 = (1<<9), ZEND_CPU_FEATURE_CID = (1<<10), ZEND_CPU_FEATURE_SDBG = (1<<11), ZEND_CPU_FEATURE_FMA = (1<<12), ZEND_CPU_FEATURE_CX16 = (1<<13), ZEND_CPU_FEATURE_XTPR = (1<<14), ZEND_CPU_FEATURE_PDCM = (1<<15), /* reserved = (1<<16),*/ ZEND_CPU_FEATURE_PCID = (1<<17), ZEND_CPU_FEATURE_DCA = (1<<18), ZEND_CPU_FEATURE_SSE41 = (1<<19), ZEND_CPU_FEATURE_SSE42 = (1<<20), ZEND_CPU_FEATURE_X2APIC = (1<<21), ZEND_CPU_FEATURE_MOVBE = (1<<22), ZEND_CPU_FEATURE_POPCNT = (1<<23), ZEND_CPU_FEATURE_TSC_DEADLINE = (1<<24), ZEND_CPU_FEATURE_AES = (1<<25), ZEND_CPU_FEATURE_XSAVE = (1<<26), ZEND_CPU_FEATURE_OSXSAVE = (1<<27) , ZEND_CPU_FEATURE_AVX = (1<<28), ZEND_CPU_FEATURE_F16C = (1<<29), /* intentionally don't support = (1<<30) */ /* intentionally don't support = (1<<31) */ /* EBX */ ZEND_CPU_FEATURE_AVX2 = (1<<5 | ZEND_CPU_EBX_MASK), ZEND_CPU_FEATURE_AVX512F = (1<<16 | ZEND_CPU_EBX_MASK), ZEND_CPU_FEATURE_AVX512DQ = (1<<17 | ZEND_CPU_EBX_MASK), ZEND_CPU_FEATURE_AVX512CD = (1<<28 | ZEND_CPU_EBX_MASK), /* intentionally don't support = (1<<30 | ZEND_CPU_EBX_MASK) */ /* intentionally don't support = (1<<31 | ZEND_CPU_EBX_MASK) */ /* EDX */ ZEND_CPU_FEATURE_FPU = (1<<0 | ZEND_CPU_EDX_MASK), ZEND_CPU_FEATURE_VME = (1<<1 | ZEND_CPU_EDX_MASK), ZEND_CPU_FEATURE_DE = (1<<2 | ZEND_CPU_EDX_MASK), ZEND_CPU_FEATURE_PSE = (1<<3 | ZEND_CPU_EDX_MASK), ZEND_CPU_FEATURE_TSC = (1<<4 | ZEND_CPU_EDX_MASK), ZEND_CPU_FEATURE_MSR = (1<<5 | ZEND_CPU_EDX_MASK), ZEND_CPU_FEATURE_PAE = (1<<6 | ZEND_CPU_EDX_MASK), ZEND_CPU_FEATURE_MCE = (1<<7 | ZEND_CPU_EDX_MASK), ZEND_CPU_FEATURE_CX8 = (1<<8 | ZEND_CPU_EDX_MASK), ZEND_CPU_FEATURE_APIC = (1<<9 | ZEND_CPU_EDX_MASK), /* reserved = (1<<10 | ZEND_CPU_EDX_MASK),*/ ZEND_CPU_FEATURE_SEP = (1<<11 | ZEND_CPU_EDX_MASK), ZEND_CPU_FEATURE_MTRR = (1<<12 | ZEND_CPU_EDX_MASK), ZEND_CPU_FEATURE_PGE = (1<<13 | ZEND_CPU_EDX_MASK), ZEND_CPU_FEATURE_MCA = (1<<14 | ZEND_CPU_EDX_MASK), ZEND_CPU_FEATURE_CMOV = (1<<15 | ZEND_CPU_EDX_MASK), ZEND_CPU_FEATURE_PAT = (1<<16 | ZEND_CPU_EDX_MASK), ZEND_CPU_FEATURE_PSE36 = (1<<17 | ZEND_CPU_EDX_MASK), ZEND_CPU_FEATURE_PN = (1<<18 | ZEND_CPU_EDX_MASK), ZEND_CPU_FEATURE_CLFLUSH = (1<<19 | ZEND_CPU_EDX_MASK), /* reserved = (1<<20 | ZEND_CPU_EDX_MASK),*/ ZEND_CPU_FEATURE_DS = (1<<21 | ZEND_CPU_EDX_MASK), ZEND_CPU_FEATURE_ACPI = (1<<22 | ZEND_CPU_EDX_MASK), ZEND_CPU_FEATURE_MMX = (1<<23 | ZEND_CPU_EDX_MASK), ZEND_CPU_FEATURE_FXSR = (1<<24 | ZEND_CPU_EDX_MASK), ZEND_CPU_FEATURE_SSE = (1<<25 | ZEND_CPU_EDX_MASK), ZEND_CPU_FEATURE_SSE2 = (1<<26 | ZEND_CPU_EDX_MASK), ZEND_CPU_FEATURE_SS = (1<<27 | ZEND_CPU_EDX_MASK), ZEND_CPU_FEATURE_HT = (1<<28 | ZEND_CPU_EDX_MASK), ZEND_CPU_FEATURE_TM = (1<<29 | ZEND_CPU_EDX_MASK) /*intentionally don't support = (1<<30 | ZEND_CPU_EDX_MASK)*/ /*intentionally don't support = (1<<31 | ZEND_CPU_EDX_MASK)*/ } zend_cpu_feature; void zend_cpu_startup(void); ZEND_API int zend_cpu_supports(zend_cpu_feature feature); #ifndef __has_attribute # define __has_attribute(x) 0 #endif /* Address sanitizer is incompatible with ifunc resolvers, so exclude the * CPU support helpers from asan. * See also https://github.com/google/sanitizers/issues/342. */ #if __has_attribute(no_sanitize_address) # define ZEND_NO_SANITIZE_ADDRESS __attribute__((no_sanitize_address)) #else # define ZEND_NO_SANITIZE_ADDRESS #endif #if PHP_HAVE_BUILTIN_CPU_SUPPORTS /* NOTE: you should use following inline function in * resolver functions (ifunc), as it could be called * before all PLT symbols are resolved. in other words, * resolver functions should not depend on any external * functions */ ZEND_NO_SANITIZE_ADDRESS static inline int zend_cpu_supports_sse2(void) { #ifdef __aarch64__ return 0; #else #if PHP_HAVE_BUILTIN_CPU_INIT __builtin_cpu_init(); #endif return __builtin_cpu_supports("sse2"); #endif } ZEND_NO_SANITIZE_ADDRESS static inline int zend_cpu_supports_sse3(void) { #ifdef __aarch64__ return 0; #else #if PHP_HAVE_BUILTIN_CPU_INIT __builtin_cpu_init(); #endif return __builtin_cpu_supports("sse3"); #endif } ZEND_NO_SANITIZE_ADDRESS static inline int zend_cpu_supports_ssse3(void) { #ifdef __aarch64__ return 0; #else #if PHP_HAVE_BUILTIN_CPU_INIT __builtin_cpu_init(); #endif return __builtin_cpu_supports("ssse3"); #endif } ZEND_NO_SANITIZE_ADDRESS static inline int zend_cpu_supports_sse41(void) { #ifdef __aarch64__ return 0; #else #if PHP_HAVE_BUILTIN_CPU_INIT __builtin_cpu_init(); #endif return __builtin_cpu_supports("sse4.1"); #endif } ZEND_NO_SANITIZE_ADDRESS static inline int zend_cpu_supports_sse42(void) { #ifdef __aarch64__ return 0; #else #if PHP_HAVE_BUILTIN_CPU_INIT __builtin_cpu_init(); #endif return __builtin_cpu_supports("sse4.2"); #endif } ZEND_NO_SANITIZE_ADDRESS static inline int zend_cpu_supports_avx(void) { #ifdef __aarch64__ return 0; #else #if PHP_HAVE_BUILTIN_CPU_INIT __builtin_cpu_init(); #endif return __builtin_cpu_supports("avx"); #endif } ZEND_NO_SANITIZE_ADDRESS static inline int zend_cpu_supports_avx2(void) { #ifdef __aarch64__ return 0; #else #if PHP_HAVE_BUILTIN_CPU_INIT __builtin_cpu_init(); #endif return __builtin_cpu_supports("avx2"); #endif } #if PHP_HAVE_AVX512_SUPPORTS ZEND_NO_SANITIZE_ADDRESS static inline int zend_cpu_supports_avx512(void) { #if PHP_HAVE_BUILTIN_CPU_INIT __builtin_cpu_init(); #endif return __builtin_cpu_supports("avx512f") && __builtin_cpu_supports("avx512dq") && __builtin_cpu_supports("avx512cd") && __builtin_cpu_supports("avx512bw") && __builtin_cpu_supports("avx512vl"); } #endif #if PHP_HAVE_AVX512_VBMI_SUPPORTS ZEND_NO_SANITIZE_ADDRESS static inline int zend_cpu_supports_avx512_vbmi(void) { #if PHP_HAVE_BUILTIN_CPU_INIT __builtin_cpu_init(); #endif return zend_cpu_supports_avx512() && __builtin_cpu_supports("avx512vbmi"); } #endif #else static inline int zend_cpu_supports_sse2(void) { return zend_cpu_supports(ZEND_CPU_FEATURE_SSE2); } static inline int zend_cpu_supports_sse3(void) { return zend_cpu_supports(ZEND_CPU_FEATURE_SSE3); } static inline int zend_cpu_supports_ssse3(void) { return zend_cpu_supports(ZEND_CPU_FEATURE_SSSE3); } static inline int zend_cpu_supports_sse41(void) { return zend_cpu_supports(ZEND_CPU_FEATURE_SSE41); } static inline int zend_cpu_supports_sse42(void) { return zend_cpu_supports(ZEND_CPU_FEATURE_SSE42); } static inline int zend_cpu_supports_avx(void) { return zend_cpu_supports(ZEND_CPU_FEATURE_AVX); } static inline int zend_cpu_supports_avx2(void) { return zend_cpu_supports(ZEND_CPU_FEATURE_AVX2); } static inline int zend_cpu_supports_avx512(void) { /* TODO: avx512_bw/avx512_vl use bit 30/31 which are reserved for mask */ return 0; } static zend_always_inline int zend_cpu_supports_avx512_vbmi(void) { /* TODO: avx512_vbmi use ECX of cpuid 7 */ return 0; } #endif /* __builtin_cpu_supports has pclmul from gcc9 */ #if PHP_HAVE_BUILTIN_CPU_SUPPORTS && (!defined(__GNUC__) || (ZEND_GCC_VERSION >= 9000)) ZEND_NO_SANITIZE_ADDRESS static inline int zend_cpu_supports_pclmul(void) { #if PHP_HAVE_BUILTIN_CPU_INIT __builtin_cpu_init(); #endif return __builtin_cpu_supports("pclmul"); } #else static inline int zend_cpu_supports_pclmul(void) { return zend_cpu_supports(ZEND_CPU_FEATURE_PCLMULQDQ); } #endif /* __builtin_cpu_supports has cldemote from gcc11 */ #if PHP_HAVE_BUILTIN_CPU_SUPPORTS && defined(__GNUC__) && (ZEND_GCC_VERSION >= 11000) ZEND_NO_SANITIZE_ADDRESS static inline int zend_cpu_supports_cldemote(void) { #if PHP_HAVE_BUILTIN_CPU_INIT __builtin_cpu_init(); #endif return __builtin_cpu_supports("cldemote"); } #endif #endif
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