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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) {
#if PHP_HAVE_BUILTIN_CPU_INIT
__builtin_cpu_init();
#endif
return __builtin_cpu_supports("sse2");
}
ZEND_NO_SANITIZE_ADDRESS
static inline int zend_cpu_supports_sse3(void) {
#if PHP_HAVE_BUILTIN_CPU_INIT
__builtin_cpu_init();
#endif
return __builtin_cpu_supports("sse3");
}
ZEND_NO_SANITIZE_ADDRESS
static inline int zend_cpu_supports_ssse3(void) {
#if PHP_HAVE_BUILTIN_CPU_INIT
__builtin_cpu_init();
#endif
return __builtin_cpu_supports("ssse3");
}
ZEND_NO_SANITIZE_ADDRESS
static inline int zend_cpu_supports_sse41(void) {
#if PHP_HAVE_BUILTIN_CPU_INIT
__builtin_cpu_init();
#endif
return __builtin_cpu_supports("sse4.1");
}
ZEND_NO_SANITIZE_ADDRESS
static inline int zend_cpu_supports_sse42(void) {
#if PHP_HAVE_BUILTIN_CPU_INIT
__builtin_cpu_init();
#endif
return __builtin_cpu_supports("sse4.2");
}
ZEND_NO_SANITIZE_ADDRESS
static inline int zend_cpu_supports_avx(void) {
#if PHP_HAVE_BUILTIN_CPU_INIT
__builtin_cpu_init();
#endif
return __builtin_cpu_supports("avx");
}
ZEND_NO_SANITIZE_ADDRESS
static inline int zend_cpu_supports_avx2(void) {
#if PHP_HAVE_BUILTIN_CPU_INIT
__builtin_cpu_init();
#endif
return __builtin_cpu_supports("avx2");
}
#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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