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9620398097
glibc/sysdeps/x86/tst-get-cpu-features.c
H.J. Lu 9620398097 x86: Install <sys/platform/x86.h> [BZ #26124] 
Install <sys/platform/x86.h> so that programmers can do

 #if __has_include(<sys/platform/x86.h>)
 #include <sys/platform/x86.h>
 #endif
 ...

   if (CPU_FEATURE_USABLE (SSE2))
 ...
   if (CPU_FEATURE_USABLE (AVX2))
 ...

<sys/platform/x86.h> exports only:

enum
{
  COMMON_CPUID_INDEX_1 = 0,
  COMMON_CPUID_INDEX_7,
  COMMON_CPUID_INDEX_80000001,
  COMMON_CPUID_INDEX_D_ECX_1,
  COMMON_CPUID_INDEX_80000007,
  COMMON_CPUID_INDEX_80000008,
  COMMON_CPUID_INDEX_7_ECX_1,
  /* Keep the following line at the end.  */
  COMMON_CPUID_INDEX_MAX
};

struct cpuid_features
{
  struct cpuid_registers cpuid;
  struct cpuid_registers usable;
};

struct cpu_features
{
  struct cpu_features_basic basic;
  struct cpuid_features features[COMMON_CPUID_INDEX_MAX];
};

/* Get a pointer to the CPU features structure.  */
extern const struct cpu_features *__x86_get_cpu_features
  (unsigned int max) __attribute__ ((const));

Since all feature checks are done through macros, programs compiled with
a newer <sys/platform/x86.h> are compatible with the older glibc binaries
as long as the layout of struct cpu_features is identical.  The features
array can be expanded with backward binary compatibility for both .o and
.so files.  When COMMON_CPUID_INDEX_MAX is increased to support new
processor features, __x86_get_cpu_features in the older glibc binaries
returns NULL and HAS_CPU_FEATURE/CPU_FEATURE_USABLE return false on the
new processor feature.  No new symbol version is neeeded.

Both CPU_FEATURE_USABLE and HAS_CPU_FEATURE are provided.  HAS_CPU_FEATURE
can be used to identify processor features.

Note: Although GCC has __builtin_cpu_supports, it only supports a subset
of <sys/platform/x86.h> and it is equivalent to CPU_FEATURE_USABLE.  It
doesn't support HAS_CPU_FEATURE.
2020-09-11 17:20:52 -07:00

380 lines
12 KiB
C
Raw Blame History

/* Test case for __x86_get_cpu_features interface
Copyright (C) 2015-2020 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
#include <stdlib.h>
#include <stdio.h>
#include <sys/platform/x86.h>
#include <support/check.h>
#define CHECK_CPU_FEATURE(name) \
{ \
if (HAS_CPU_FEATURE (name)) \
printf (" " #name "\n"); \
}
#define CHECK_CPU_FEATURE_USABLE(name) \
{ \
if (CPU_FEATURE_USABLE(name)) \
printf (" " #name "\n"); \
}
static const char * const cpu_kinds[] =
{
"Unknown",
"Intel",
"AMD",
"ZHAOXIN",
"Other",
};
static int
do_test (void)
{
const struct cpu_features *cpu_features = __x86_get_cpu_features (0);
switch (cpu_features->basic.kind)
{
case arch_kind_intel:
case arch_kind_amd:
case arch_kind_zhaoxin:
case arch_kind_other:
printf ("Vendor: %s\n", cpu_kinds[cpu_features->basic.kind]);
printf ("Family: 0x%x\n", cpu_features->basic.family);
printf ("Model: 0x%x\n", cpu_features->basic.model);
printf ("Stepping: 0x%x\n", cpu_features->basic.stepping);
break;
default:
abort ();
}
#ifdef __SSE2__
TEST_VERIFY_EXIT (HAS_CPU_FEATURE (SSE2));
#endif
printf ("CPU features:\n");
CHECK_CPU_FEATURE (SSE3);
CHECK_CPU_FEATURE (PCLMULQDQ);
CHECK_CPU_FEATURE (DTES64);
CHECK_CPU_FEATURE (MONITOR);
CHECK_CPU_FEATURE (DS_CPL);
CHECK_CPU_FEATURE (VMX);
CHECK_CPU_FEATURE (SMX);
CHECK_CPU_FEATURE (EIST);
CHECK_CPU_FEATURE (TM2);
CHECK_CPU_FEATURE (SSSE3);
CHECK_CPU_FEATURE (CNXT_ID);
CHECK_CPU_FEATURE (SDBG);
CHECK_CPU_FEATURE (FMA);
CHECK_CPU_FEATURE (CMPXCHG16B);
CHECK_CPU_FEATURE (XTPRUPDCTRL);
CHECK_CPU_FEATURE (PDCM);
CHECK_CPU_FEATURE (PCID);
CHECK_CPU_FEATURE (DCA);
CHECK_CPU_FEATURE (SSE4_1);
CHECK_CPU_FEATURE (SSE4_2);
CHECK_CPU_FEATURE (X2APIC);
CHECK_CPU_FEATURE (MOVBE);
CHECK_CPU_FEATURE (POPCNT);
CHECK_CPU_FEATURE (TSC_DEADLINE);
CHECK_CPU_FEATURE (AES);
CHECK_CPU_FEATURE (XSAVE);
CHECK_CPU_FEATURE (OSXSAVE);
CHECK_CPU_FEATURE (AVX);
CHECK_CPU_FEATURE (F16C);
CHECK_CPU_FEATURE (RDRAND);
CHECK_CPU_FEATURE (FPU);
CHECK_CPU_FEATURE (VME);
CHECK_CPU_FEATURE (DE);
CHECK_CPU_FEATURE (PSE);
CHECK_CPU_FEATURE (TSC);
CHECK_CPU_FEATURE (MSR);
CHECK_CPU_FEATURE (PAE);
CHECK_CPU_FEATURE (MCE);
CHECK_CPU_FEATURE (CX8);
CHECK_CPU_FEATURE (APIC);
CHECK_CPU_FEATURE (SEP);
CHECK_CPU_FEATURE (MTRR);
CHECK_CPU_FEATURE (PGE);
CHECK_CPU_FEATURE (MCA);
CHECK_CPU_FEATURE (CMOV);
CHECK_CPU_FEATURE (PAT);
CHECK_CPU_FEATURE (PSE_36);
CHECK_CPU_FEATURE (PSN);
CHECK_CPU_FEATURE (CLFSH);
CHECK_CPU_FEATURE (DS);
CHECK_CPU_FEATURE (ACPI);
CHECK_CPU_FEATURE (MMX);
CHECK_CPU_FEATURE (FXSR);
CHECK_CPU_FEATURE (SSE);
CHECK_CPU_FEATURE (SSE2);
CHECK_CPU_FEATURE (SS);
CHECK_CPU_FEATURE (HTT);
CHECK_CPU_FEATURE (TM);
CHECK_CPU_FEATURE (PBE);
CHECK_CPU_FEATURE (FSGSBASE);
CHECK_CPU_FEATURE (TSC_ADJUST);
CHECK_CPU_FEATURE (SGX);
CHECK_CPU_FEATURE (BMI1);
CHECK_CPU_FEATURE (HLE);
CHECK_CPU_FEATURE (AVX2);
CHECK_CPU_FEATURE (SMEP);
CHECK_CPU_FEATURE (BMI2);
CHECK_CPU_FEATURE (ERMS);
CHECK_CPU_FEATURE (INVPCID);
CHECK_CPU_FEATURE (RTM);
CHECK_CPU_FEATURE (RDT_M);
CHECK_CPU_FEATURE (DEPR_FPU_CS_DS);
CHECK_CPU_FEATURE (MPX);
CHECK_CPU_FEATURE (RDT_A);
CHECK_CPU_FEATURE (AVX512F);
CHECK_CPU_FEATURE (AVX512DQ);
CHECK_CPU_FEATURE (RDSEED);
CHECK_CPU_FEATURE (ADX);
CHECK_CPU_FEATURE (SMAP);
CHECK_CPU_FEATURE (AVX512_IFMA);
CHECK_CPU_FEATURE (CLFLUSHOPT);
CHECK_CPU_FEATURE (CLWB);
CHECK_CPU_FEATURE (TRACE);
CHECK_CPU_FEATURE (AVX512PF);
CHECK_CPU_FEATURE (AVX512ER);
CHECK_CPU_FEATURE (AVX512CD);
CHECK_CPU_FEATURE (SHA);
CHECK_CPU_FEATURE (AVX512BW);
CHECK_CPU_FEATURE (AVX512VL);
CHECK_CPU_FEATURE (PREFETCHWT1);
CHECK_CPU_FEATURE (AVX512_VBMI);
CHECK_CPU_FEATURE (UMIP);
CHECK_CPU_FEATURE (PKU);
CHECK_CPU_FEATURE (OSPKE);
CHECK_CPU_FEATURE (WAITPKG);
CHECK_CPU_FEATURE (AVX512_VBMI2);
CHECK_CPU_FEATURE (SHSTK);
CHECK_CPU_FEATURE (GFNI);
CHECK_CPU_FEATURE (VAES);
CHECK_CPU_FEATURE (VPCLMULQDQ);
CHECK_CPU_FEATURE (AVX512_VNNI);
CHECK_CPU_FEATURE (AVX512_BITALG);
CHECK_CPU_FEATURE (AVX512_VPOPCNTDQ);
CHECK_CPU_FEATURE (RDPID);
CHECK_CPU_FEATURE (CLDEMOTE);
CHECK_CPU_FEATURE (MOVDIRI);
CHECK_CPU_FEATURE (MOVDIR64B);
CHECK_CPU_FEATURE (ENQCMD);
CHECK_CPU_FEATURE (SGX_LC);
CHECK_CPU_FEATURE (PKS);
CHECK_CPU_FEATURE (AVX512_4VNNIW);
CHECK_CPU_FEATURE (AVX512_4FMAPS);
CHECK_CPU_FEATURE (FSRM);
CHECK_CPU_FEATURE (AVX512_VP2INTERSECT);
CHECK_CPU_FEATURE (MD_CLEAR);
CHECK_CPU_FEATURE (SERIALIZE);
CHECK_CPU_FEATURE (HYBRID);
CHECK_CPU_FEATURE (TSXLDTRK);
CHECK_CPU_FEATURE (PCONFIG);
CHECK_CPU_FEATURE (IBT);
CHECK_CPU_FEATURE (AMX_BF16);
CHECK_CPU_FEATURE (AMX_TILE);
CHECK_CPU_FEATURE (AMX_INT8);
CHECK_CPU_FEATURE (IBRS_IBPB);
CHECK_CPU_FEATURE (STIBP);
CHECK_CPU_FEATURE (L1D_FLUSH);
CHECK_CPU_FEATURE (ARCH_CAPABILITIES);
CHECK_CPU_FEATURE (CORE_CAPABILITIES);
CHECK_CPU_FEATURE (SSBD);
CHECK_CPU_FEATURE (LAHF64_SAHF64);
CHECK_CPU_FEATURE (SVM);
CHECK_CPU_FEATURE (LZCNT);
CHECK_CPU_FEATURE (SSE4A);
CHECK_CPU_FEATURE (PREFETCHW);
CHECK_CPU_FEATURE (XOP);
CHECK_CPU_FEATURE (LWP);
CHECK_CPU_FEATURE (FMA4);
CHECK_CPU_FEATURE (TBM);
CHECK_CPU_FEATURE (SYSCALL_SYSRET);
CHECK_CPU_FEATURE (NX);
CHECK_CPU_FEATURE (PAGE1GB);
CHECK_CPU_FEATURE (RDTSCP);
CHECK_CPU_FEATURE (LM);
CHECK_CPU_FEATURE (XSAVEOPT);
CHECK_CPU_FEATURE (XSAVEC);
CHECK_CPU_FEATURE (XGETBV_ECX_1);
CHECK_CPU_FEATURE (XSAVES);
CHECK_CPU_FEATURE (XFD);
CHECK_CPU_FEATURE (INVARIANT_TSC);
CHECK_CPU_FEATURE (WBNOINVD);
CHECK_CPU_FEATURE (AVX512_BF16);
printf ("Usable CPU features:\n");
CHECK_CPU_FEATURE_USABLE (SSE3);
CHECK_CPU_FEATURE_USABLE (PCLMULQDQ);
CHECK_CPU_FEATURE_USABLE (DTES64);
CHECK_CPU_FEATURE_USABLE (MONITOR);
CHECK_CPU_FEATURE_USABLE (DS_CPL);
CHECK_CPU_FEATURE_USABLE (VMX);
CHECK_CPU_FEATURE_USABLE (SMX);
CHECK_CPU_FEATURE_USABLE (EIST);
CHECK_CPU_FEATURE_USABLE (TM2);
CHECK_CPU_FEATURE_USABLE (SSSE3);
CHECK_CPU_FEATURE_USABLE (CNXT_ID);
CHECK_CPU_FEATURE_USABLE (SDBG);
CHECK_CPU_FEATURE_USABLE (FMA);
CHECK_CPU_FEATURE_USABLE (CMPXCHG16B);
CHECK_CPU_FEATURE_USABLE (XTPRUPDCTRL);
CHECK_CPU_FEATURE_USABLE (PDCM);
CHECK_CPU_FEATURE_USABLE (PCID);
CHECK_CPU_FEATURE_USABLE (DCA);
CHECK_CPU_FEATURE_USABLE (SSE4_1);
CHECK_CPU_FEATURE_USABLE (SSE4_2);
CHECK_CPU_FEATURE_USABLE (X2APIC);
CHECK_CPU_FEATURE_USABLE (MOVBE);
CHECK_CPU_FEATURE_USABLE (POPCNT);
CHECK_CPU_FEATURE_USABLE (TSC_DEADLINE);
CHECK_CPU_FEATURE_USABLE (AES);
CHECK_CPU_FEATURE_USABLE (XSAVE);
CHECK_CPU_FEATURE_USABLE (OSXSAVE);
CHECK_CPU_FEATURE_USABLE (AVX);
CHECK_CPU_FEATURE_USABLE (F16C);
CHECK_CPU_FEATURE_USABLE (RDRAND);
CHECK_CPU_FEATURE_USABLE (FPU);
CHECK_CPU_FEATURE_USABLE (VME);
CHECK_CPU_FEATURE_USABLE (DE);
CHECK_CPU_FEATURE_USABLE (PSE);
CHECK_CPU_FEATURE_USABLE (TSC);
CHECK_CPU_FEATURE_USABLE (MSR);
CHECK_CPU_FEATURE_USABLE (PAE);
CHECK_CPU_FEATURE_USABLE (MCE);
CHECK_CPU_FEATURE_USABLE (CX8);
CHECK_CPU_FEATURE_USABLE (APIC);
CHECK_CPU_FEATURE_USABLE (SEP);
CHECK_CPU_FEATURE_USABLE (MTRR);
CHECK_CPU_FEATURE_USABLE (PGE);
CHECK_CPU_FEATURE_USABLE (MCA);
CHECK_CPU_FEATURE_USABLE (CMOV);
CHECK_CPU_FEATURE_USABLE (PAT);
CHECK_CPU_FEATURE_USABLE (PSE_36);
CHECK_CPU_FEATURE_USABLE (PSN);
CHECK_CPU_FEATURE_USABLE (CLFSH);
CHECK_CPU_FEATURE_USABLE (DS);
CHECK_CPU_FEATURE_USABLE (ACPI);
CHECK_CPU_FEATURE_USABLE (MMX);
CHECK_CPU_FEATURE_USABLE (FXSR);
CHECK_CPU_FEATURE_USABLE (SSE);
CHECK_CPU_FEATURE_USABLE (SSE2);
CHECK_CPU_FEATURE_USABLE (SS);
CHECK_CPU_FEATURE_USABLE (HTT);
CHECK_CPU_FEATURE_USABLE (TM);
CHECK_CPU_FEATURE_USABLE (PBE);
CHECK_CPU_FEATURE_USABLE (FSGSBASE);
CHECK_CPU_FEATURE_USABLE (TSC_ADJUST);
CHECK_CPU_FEATURE_USABLE (SGX);
CHECK_CPU_FEATURE_USABLE (BMI1);
CHECK_CPU_FEATURE_USABLE (HLE);
CHECK_CPU_FEATURE_USABLE (AVX2);
CHECK_CPU_FEATURE_USABLE (SMEP);
CHECK_CPU_FEATURE_USABLE (BMI2);
CHECK_CPU_FEATURE_USABLE (ERMS);
CHECK_CPU_FEATURE_USABLE (INVPCID);
CHECK_CPU_FEATURE_USABLE (RTM);
CHECK_CPU_FEATURE_USABLE (RDT_M);
CHECK_CPU_FEATURE_USABLE (DEPR_FPU_CS_DS);
CHECK_CPU_FEATURE_USABLE (MPX);
CHECK_CPU_FEATURE_USABLE (RDT_A);
CHECK_CPU_FEATURE_USABLE (AVX512F);
CHECK_CPU_FEATURE_USABLE (AVX512DQ);
CHECK_CPU_FEATURE_USABLE (RDSEED);
CHECK_CPU_FEATURE_USABLE (ADX);
CHECK_CPU_FEATURE_USABLE (SMAP);
CHECK_CPU_FEATURE_USABLE (AVX512_IFMA);
CHECK_CPU_FEATURE_USABLE (CLFLUSHOPT);
CHECK_CPU_FEATURE_USABLE (CLWB);
CHECK_CPU_FEATURE_USABLE (TRACE);
CHECK_CPU_FEATURE_USABLE (AVX512PF);
CHECK_CPU_FEATURE_USABLE (AVX512ER);
CHECK_CPU_FEATURE_USABLE (AVX512CD);
CHECK_CPU_FEATURE_USABLE (SHA);
CHECK_CPU_FEATURE_USABLE (AVX512BW);
CHECK_CPU_FEATURE_USABLE (AVX512VL);
CHECK_CPU_FEATURE_USABLE (PREFETCHWT1);
CHECK_CPU_FEATURE_USABLE (AVX512_VBMI);
CHECK_CPU_FEATURE_USABLE (UMIP);
CHECK_CPU_FEATURE_USABLE (PKU);
CHECK_CPU_FEATURE_USABLE (OSPKE);
CHECK_CPU_FEATURE_USABLE (WAITPKG);
CHECK_CPU_FEATURE_USABLE (AVX512_VBMI2);
CHECK_CPU_FEATURE_USABLE (SHSTK);
CHECK_CPU_FEATURE_USABLE (GFNI);
CHECK_CPU_FEATURE_USABLE (VAES);
CHECK_CPU_FEATURE_USABLE (VPCLMULQDQ);
CHECK_CPU_FEATURE_USABLE (AVX512_VNNI);
CHECK_CPU_FEATURE_USABLE (AVX512_BITALG);
CHECK_CPU_FEATURE_USABLE (AVX512_VPOPCNTDQ);
CHECK_CPU_FEATURE_USABLE (RDPID);
CHECK_CPU_FEATURE_USABLE (CLDEMOTE);
CHECK_CPU_FEATURE_USABLE (MOVDIRI);
CHECK_CPU_FEATURE_USABLE (MOVDIR64B);
CHECK_CPU_FEATURE_USABLE (ENQCMD);
CHECK_CPU_FEATURE_USABLE (SGX_LC);
CHECK_CPU_FEATURE_USABLE (PKS);
CHECK_CPU_FEATURE_USABLE (AVX512_4VNNIW);
CHECK_CPU_FEATURE_USABLE (AVX512_4FMAPS);
CHECK_CPU_FEATURE_USABLE (FSRM);
CHECK_CPU_FEATURE_USABLE (AVX512_VP2INTERSECT);
CHECK_CPU_FEATURE_USABLE (MD_CLEAR);
CHECK_CPU_FEATURE_USABLE (SERIALIZE);
CHECK_CPU_FEATURE_USABLE (HYBRID);
CHECK_CPU_FEATURE_USABLE (TSXLDTRK);
CHECK_CPU_FEATURE_USABLE (PCONFIG);
CHECK_CPU_FEATURE_USABLE (IBT);
CHECK_CPU_FEATURE_USABLE (AMX_BF16);
CHECK_CPU_FEATURE_USABLE (AMX_TILE);
CHECK_CPU_FEATURE_USABLE (AMX_INT8);
CHECK_CPU_FEATURE_USABLE (IBRS_IBPB);
CHECK_CPU_FEATURE_USABLE (STIBP);
CHECK_CPU_FEATURE_USABLE (L1D_FLUSH);
CHECK_CPU_FEATURE_USABLE (ARCH_CAPABILITIES);
CHECK_CPU_FEATURE_USABLE (CORE_CAPABILITIES);
CHECK_CPU_FEATURE_USABLE (SSBD);
CHECK_CPU_FEATURE_USABLE (LAHF64_SAHF64);
CHECK_CPU_FEATURE_USABLE (SVM);
CHECK_CPU_FEATURE_USABLE (LZCNT);
CHECK_CPU_FEATURE_USABLE (SSE4A);
CHECK_CPU_FEATURE_USABLE (PREFETCHW);
CHECK_CPU_FEATURE_USABLE (XOP);
CHECK_CPU_FEATURE_USABLE (LWP);
CHECK_CPU_FEATURE_USABLE (FMA4);
CHECK_CPU_FEATURE_USABLE (TBM);
CHECK_CPU_FEATURE_USABLE (SYSCALL_SYSRET);
CHECK_CPU_FEATURE_USABLE (NX);
CHECK_CPU_FEATURE_USABLE (PAGE1GB);
CHECK_CPU_FEATURE_USABLE (RDTSCP);
CHECK_CPU_FEATURE_USABLE (LM);
CHECK_CPU_FEATURE_USABLE (XSAVEOPT);
CHECK_CPU_FEATURE_USABLE (XSAVEC);
CHECK_CPU_FEATURE_USABLE (XGETBV_ECX_1);
CHECK_CPU_FEATURE_USABLE (XSAVES);
CHECK_CPU_FEATURE_USABLE (XFD);
CHECK_CPU_FEATURE_USABLE (INVARIANT_TSC);
CHECK_CPU_FEATURE_USABLE (WBNOINVD);
CHECK_CPU_FEATURE_USABLE (AVX512_BF16);
return 0;
}
#include <support/test-driver.c>
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