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author | igorsolovyev <igorsolovyev@yandex-team.ru> | 2022-02-10 16:48:03 +0300 |
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committer | Daniil Cherednik <dcherednik@yandex-team.ru> | 2022-02-10 16:48:03 +0300 |
commit | 93dc653cf53bf7a9319b52b85a7c02edfd95463d (patch) | |
tree | b85de7682b5f10d28a798003716a65756425aa15 /contrib/libs/zstd/lib/common/cpu.h | |
parent | 6ab7e5f5ada0643a48d393717f443bd548706ffc (diff) | |
download | ydb-93dc653cf53bf7a9319b52b85a7c02edfd95463d.tar.gz |
Restoring authorship annotation for <igorsolovyev@yandex-team.ru>. Commit 1 of 2.
Diffstat (limited to 'contrib/libs/zstd/lib/common/cpu.h')
-rw-r--r-- | contrib/libs/zstd/lib/common/cpu.h | 418 |
1 files changed, 209 insertions, 209 deletions
diff --git a/contrib/libs/zstd/lib/common/cpu.h b/contrib/libs/zstd/lib/common/cpu.h index 8acd33be3c..547cea7efd 100644 --- a/contrib/libs/zstd/lib/common/cpu.h +++ b/contrib/libs/zstd/lib/common/cpu.h @@ -1,213 +1,213 @@ -/* +/* * Copyright (c) Facebook, Inc. - * All rights reserved. - * - * This source code is licensed under both the BSD-style license (found in the - * LICENSE file in the root directory of this source tree) and the GPLv2 (found - * in the COPYING file in the root directory of this source tree). - * You may select, at your option, one of the above-listed licenses. - */ - -#ifndef ZSTD_COMMON_CPU_H -#define ZSTD_COMMON_CPU_H - -/** - * Implementation taken from folly/CpuId.h - * https://github.com/facebook/folly/blob/master/folly/CpuId.h - */ - -#include "mem.h" - -#ifdef _MSC_VER -#include <intrin.h> -#endif - -typedef struct { - U32 f1c; - U32 f1d; - U32 f7b; - U32 f7c; -} ZSTD_cpuid_t; - -MEM_STATIC ZSTD_cpuid_t ZSTD_cpuid(void) { - U32 f1c = 0; - U32 f1d = 0; - U32 f7b = 0; - U32 f7c = 0; + * All rights reserved. + * + * This source code is licensed under both the BSD-style license (found in the + * LICENSE file in the root directory of this source tree) and the GPLv2 (found + * in the COPYING file in the root directory of this source tree). + * You may select, at your option, one of the above-listed licenses. + */ + +#ifndef ZSTD_COMMON_CPU_H +#define ZSTD_COMMON_CPU_H + +/** + * Implementation taken from folly/CpuId.h + * https://github.com/facebook/folly/blob/master/folly/CpuId.h + */ + +#include "mem.h" + +#ifdef _MSC_VER +#include <intrin.h> +#endif + +typedef struct { + U32 f1c; + U32 f1d; + U32 f7b; + U32 f7c; +} ZSTD_cpuid_t; + +MEM_STATIC ZSTD_cpuid_t ZSTD_cpuid(void) { + U32 f1c = 0; + U32 f1d = 0; + U32 f7b = 0; + U32 f7c = 0; #if defined(_MSC_VER) && (defined(_M_X64) || defined(_M_IX86)) - int reg[4]; - __cpuid((int*)reg, 0); - { - int const n = reg[0]; - if (n >= 1) { - __cpuid((int*)reg, 1); - f1c = (U32)reg[2]; - f1d = (U32)reg[3]; - } - if (n >= 7) { - __cpuidex((int*)reg, 7, 0); - f7b = (U32)reg[1]; - f7c = (U32)reg[2]; - } - } -#elif defined(__i386__) && defined(__PIC__) && !defined(__clang__) && defined(__GNUC__) - /* The following block like the normal cpuid branch below, but gcc - * reserves ebx for use of its pic register so we must specially - * handle the save and restore to avoid clobbering the register - */ - U32 n; - __asm__( - "pushl %%ebx\n\t" - "cpuid\n\t" - "popl %%ebx\n\t" - : "=a"(n) - : "a"(0) - : "ecx", "edx"); - if (n >= 1) { - U32 f1a; - __asm__( - "pushl %%ebx\n\t" - "cpuid\n\t" - "popl %%ebx\n\t" - : "=a"(f1a), "=c"(f1c), "=d"(f1d) + int reg[4]; + __cpuid((int*)reg, 0); + { + int const n = reg[0]; + if (n >= 1) { + __cpuid((int*)reg, 1); + f1c = (U32)reg[2]; + f1d = (U32)reg[3]; + } + if (n >= 7) { + __cpuidex((int*)reg, 7, 0); + f7b = (U32)reg[1]; + f7c = (U32)reg[2]; + } + } +#elif defined(__i386__) && defined(__PIC__) && !defined(__clang__) && defined(__GNUC__) + /* The following block like the normal cpuid branch below, but gcc + * reserves ebx for use of its pic register so we must specially + * handle the save and restore to avoid clobbering the register + */ + U32 n; + __asm__( + "pushl %%ebx\n\t" + "cpuid\n\t" + "popl %%ebx\n\t" + : "=a"(n) + : "a"(0) + : "ecx", "edx"); + if (n >= 1) { + U32 f1a; + __asm__( + "pushl %%ebx\n\t" + "cpuid\n\t" + "popl %%ebx\n\t" + : "=a"(f1a), "=c"(f1c), "=d"(f1d) : "a"(1)); - } - if (n >= 7) { - __asm__( - "pushl %%ebx\n\t" - "cpuid\n\t" + } + if (n >= 7) { + __asm__( + "pushl %%ebx\n\t" + "cpuid\n\t" "movl %%ebx, %%eax\n\t" - "popl %%ebx" - : "=a"(f7b), "=c"(f7c) - : "a"(7), "c"(0) - : "edx"); - } -#elif defined(__x86_64__) || defined(_M_X64) || defined(__i386__) - U32 n; - __asm__("cpuid" : "=a"(n) : "a"(0) : "ebx", "ecx", "edx"); - if (n >= 1) { - U32 f1a; - __asm__("cpuid" : "=a"(f1a), "=c"(f1c), "=d"(f1d) : "a"(1) : "ebx"); - } - if (n >= 7) { - U32 f7a; - __asm__("cpuid" - : "=a"(f7a), "=b"(f7b), "=c"(f7c) - : "a"(7), "c"(0) - : "edx"); - } -#endif - { - ZSTD_cpuid_t cpuid; - cpuid.f1c = f1c; - cpuid.f1d = f1d; - cpuid.f7b = f7b; - cpuid.f7c = f7c; - return cpuid; - } -} - -#define X(name, r, bit) \ - MEM_STATIC int ZSTD_cpuid_##name(ZSTD_cpuid_t const cpuid) { \ - return ((cpuid.r) & (1U << bit)) != 0; \ - } - -/* cpuid(1): Processor Info and Feature Bits. */ -#define C(name, bit) X(name, f1c, bit) - C(sse3, 0) - C(pclmuldq, 1) - C(dtes64, 2) - C(monitor, 3) - C(dscpl, 4) - C(vmx, 5) - C(smx, 6) - C(eist, 7) - C(tm2, 8) - C(ssse3, 9) - C(cnxtid, 10) - C(fma, 12) - C(cx16, 13) - C(xtpr, 14) - C(pdcm, 15) - C(pcid, 17) - C(dca, 18) - C(sse41, 19) - C(sse42, 20) - C(x2apic, 21) - C(movbe, 22) - C(popcnt, 23) - C(tscdeadline, 24) - C(aes, 25) - C(xsave, 26) - C(osxsave, 27) - C(avx, 28) - C(f16c, 29) - C(rdrand, 30) -#undef C -#define D(name, bit) X(name, f1d, bit) - D(fpu, 0) - D(vme, 1) - D(de, 2) - D(pse, 3) - D(tsc, 4) - D(msr, 5) - D(pae, 6) - D(mce, 7) - D(cx8, 8) - D(apic, 9) - D(sep, 11) - D(mtrr, 12) - D(pge, 13) - D(mca, 14) - D(cmov, 15) - D(pat, 16) - D(pse36, 17) - D(psn, 18) - D(clfsh, 19) - D(ds, 21) - D(acpi, 22) - D(mmx, 23) - D(fxsr, 24) - D(sse, 25) - D(sse2, 26) - D(ss, 27) - D(htt, 28) - D(tm, 29) - D(pbe, 31) -#undef D - -/* cpuid(7): Extended Features. */ -#define B(name, bit) X(name, f7b, bit) - B(bmi1, 3) - B(hle, 4) - B(avx2, 5) - B(smep, 7) - B(bmi2, 8) - B(erms, 9) - B(invpcid, 10) - B(rtm, 11) - B(mpx, 14) - B(avx512f, 16) - B(avx512dq, 17) - B(rdseed, 18) - B(adx, 19) - B(smap, 20) - B(avx512ifma, 21) - B(pcommit, 22) - B(clflushopt, 23) - B(clwb, 24) - B(avx512pf, 26) - B(avx512er, 27) - B(avx512cd, 28) - B(sha, 29) - B(avx512bw, 30) - B(avx512vl, 31) -#undef B -#define C(name, bit) X(name, f7c, bit) - C(prefetchwt1, 0) - C(avx512vbmi, 1) -#undef C - -#undef X - -#endif /* ZSTD_COMMON_CPU_H */ + "popl %%ebx" + : "=a"(f7b), "=c"(f7c) + : "a"(7), "c"(0) + : "edx"); + } +#elif defined(__x86_64__) || defined(_M_X64) || defined(__i386__) + U32 n; + __asm__("cpuid" : "=a"(n) : "a"(0) : "ebx", "ecx", "edx"); + if (n >= 1) { + U32 f1a; + __asm__("cpuid" : "=a"(f1a), "=c"(f1c), "=d"(f1d) : "a"(1) : "ebx"); + } + if (n >= 7) { + U32 f7a; + __asm__("cpuid" + : "=a"(f7a), "=b"(f7b), "=c"(f7c) + : "a"(7), "c"(0) + : "edx"); + } +#endif + { + ZSTD_cpuid_t cpuid; + cpuid.f1c = f1c; + cpuid.f1d = f1d; + cpuid.f7b = f7b; + cpuid.f7c = f7c; + return cpuid; + } +} + +#define X(name, r, bit) \ + MEM_STATIC int ZSTD_cpuid_##name(ZSTD_cpuid_t const cpuid) { \ + return ((cpuid.r) & (1U << bit)) != 0; \ + } + +/* cpuid(1): Processor Info and Feature Bits. */ +#define C(name, bit) X(name, f1c, bit) + C(sse3, 0) + C(pclmuldq, 1) + C(dtes64, 2) + C(monitor, 3) + C(dscpl, 4) + C(vmx, 5) + C(smx, 6) + C(eist, 7) + C(tm2, 8) + C(ssse3, 9) + C(cnxtid, 10) + C(fma, 12) + C(cx16, 13) + C(xtpr, 14) + C(pdcm, 15) + C(pcid, 17) + C(dca, 18) + C(sse41, 19) + C(sse42, 20) + C(x2apic, 21) + C(movbe, 22) + C(popcnt, 23) + C(tscdeadline, 24) + C(aes, 25) + C(xsave, 26) + C(osxsave, 27) + C(avx, 28) + C(f16c, 29) + C(rdrand, 30) +#undef C +#define D(name, bit) X(name, f1d, bit) + D(fpu, 0) + D(vme, 1) + D(de, 2) + D(pse, 3) + D(tsc, 4) + D(msr, 5) + D(pae, 6) + D(mce, 7) + D(cx8, 8) + D(apic, 9) + D(sep, 11) + D(mtrr, 12) + D(pge, 13) + D(mca, 14) + D(cmov, 15) + D(pat, 16) + D(pse36, 17) + D(psn, 18) + D(clfsh, 19) + D(ds, 21) + D(acpi, 22) + D(mmx, 23) + D(fxsr, 24) + D(sse, 25) + D(sse2, 26) + D(ss, 27) + D(htt, 28) + D(tm, 29) + D(pbe, 31) +#undef D + +/* cpuid(7): Extended Features. */ +#define B(name, bit) X(name, f7b, bit) + B(bmi1, 3) + B(hle, 4) + B(avx2, 5) + B(smep, 7) + B(bmi2, 8) + B(erms, 9) + B(invpcid, 10) + B(rtm, 11) + B(mpx, 14) + B(avx512f, 16) + B(avx512dq, 17) + B(rdseed, 18) + B(adx, 19) + B(smap, 20) + B(avx512ifma, 21) + B(pcommit, 22) + B(clflushopt, 23) + B(clwb, 24) + B(avx512pf, 26) + B(avx512er, 27) + B(avx512cd, 28) + B(sha, 29) + B(avx512bw, 30) + B(avx512vl, 31) +#undef B +#define C(name, bit) X(name, f7c, bit) + C(prefetchwt1, 0) + C(avx512vbmi, 1) +#undef C + +#undef X + +#endif /* ZSTD_COMMON_CPU_H */ |