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5ab25c8875
1. Add CPUID_INDEX_14_ECX_0 for CPUID leaf 0x14 to detect PTWRITE feature in EBX of CPUID leaf 0x14 with ECX == 0. 2. Add PTWRITE detection to CPU feature tests. 3. Add 2 static CPU feature tests.
269 lines
8.7 KiB
C
269 lines
8.7 KiB
C
/* Test CPU feature data against /proc/cpuinfo.
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This file is part of the GNU C Library.
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Copyright (C) 2012-2021 Free Software Foundation, Inc.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<https://www.gnu.org/licenses/>. */
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#include <sys/platform/x86.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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static char *cpu_flags;
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/* Search for flags in /proc/cpuinfo and store line
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in cpu_flags. */
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void
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get_cpuinfo (void)
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{
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FILE *f;
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char *line = NULL;
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size_t len = 0;
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ssize_t read;
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f = fopen ("/proc/cpuinfo", "r");
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if (f == NULL)
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{
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printf ("cannot open /proc/cpuinfo\n");
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exit (1);
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}
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while ((read = getline (&line, &len, f)) != -1)
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{
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if (strncmp (line, "flags", 5) == 0)
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{
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cpu_flags = strdup (line);
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break;
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}
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}
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fclose (f);
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free (line);
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}
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int
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check_proc (const char *proc_name, const char *search_name, int flag,
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int usable, const char *name)
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{
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int found = 0;
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printf ("Checking %s:\n", name);
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printf (" %s: %d\n", name, flag);
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char *str = strstr (cpu_flags, search_name);
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if (str == NULL)
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{
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/* If searching for " XXX " failed, try " XXX\n". */
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size_t len = strlen (search_name);
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char buffer[80];
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if (len >= sizeof buffer)
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abort ();
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memcpy (buffer, search_name, len + 1);
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buffer[len - 1] = '\n';
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str = strstr (cpu_flags, buffer);
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}
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if (str != NULL)
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found = 1;
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printf (" cpuinfo (%s): %d\n", proc_name, found);
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if (found != flag)
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{
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if (found || usable)
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printf (" *** failure ***\n");
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else
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{
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printf (" *** missing in /proc/cpuinfo ***\n");
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return 0;
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}
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}
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return (found != flag);
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}
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#define CHECK_PROC(str, name) \
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check_proc (#str, " "#str" ", HAS_CPU_FEATURE (name), \
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CPU_FEATURE_USABLE (name), \
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"HAS_CPU_FEATURE (" #name ")")
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static int
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do_test (int argc, char **argv)
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{
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int fails = 0;
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get_cpuinfo ();
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fails += CHECK_PROC (acpi, ACPI);
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fails += CHECK_PROC (adx, ADX);
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fails += CHECK_PROC (apic, APIC);
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fails += CHECK_PROC (aes, AES);
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fails += CHECK_PROC (amx_bf16, AMX_BF16);
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fails += CHECK_PROC (amx_int8, AMX_INT8);
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fails += CHECK_PROC (amx_tile, AMX_TILE);
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fails += CHECK_PROC (arch_capabilities, ARCH_CAPABILITIES);
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fails += CHECK_PROC (avx, AVX);
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fails += CHECK_PROC (avx2, AVX2);
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fails += CHECK_PROC (avx512_4fmaps, AVX512_4FMAPS);
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fails += CHECK_PROC (avx512_4vnniw, AVX512_4VNNIW);
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fails += CHECK_PROC (avx512_bf16, AVX512_BF16);
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fails += CHECK_PROC (avx512_bitalg, AVX512_BITALG);
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fails += CHECK_PROC (avx512ifma, AVX512_IFMA);
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fails += CHECK_PROC (avx512vbmi, AVX512_VBMI);
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fails += CHECK_PROC (avx512_vbmi2, AVX512_VBMI2);
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fails += CHECK_PROC (avx512_vnni, AVX512_VNNI);
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fails += CHECK_PROC (avx512_vp2intersect, AVX512_VP2INTERSECT);
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fails += CHECK_PROC (avx512_vpopcntdq, AVX512_VPOPCNTDQ);
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fails += CHECK_PROC (avx512bw, AVX512BW);
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fails += CHECK_PROC (avx512cd, AVX512CD);
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fails += CHECK_PROC (avx512er, AVX512ER);
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fails += CHECK_PROC (avx512dq, AVX512DQ);
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fails += CHECK_PROC (avx512f, AVX512F);
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fails += CHECK_PROC (avx512pf, AVX512PF);
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fails += CHECK_PROC (avx512vl, AVX512VL);
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fails += CHECK_PROC (bmi1, BMI1);
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fails += CHECK_PROC (bmi2, BMI2);
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fails += CHECK_PROC (cldemote, CLDEMOTE);
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fails += CHECK_PROC (clflushopt, CLFLUSHOPT);
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fails += CHECK_PROC (clflush, CLFSH);
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fails += CHECK_PROC (clwb, CLWB);
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fails += CHECK_PROC (cmov, CMOV);
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fails += CHECK_PROC (cx16, CMPXCHG16B);
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fails += CHECK_PROC (cnxt_id, CNXT_ID);
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fails += CHECK_PROC (core_capabilities, CORE_CAPABILITIES);
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fails += CHECK_PROC (cx8, CX8);
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fails += CHECK_PROC (dca, DCA);
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fails += CHECK_PROC (de, DE);
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fails += CHECK_PROC (zero_fcs_fds, DEPR_FPU_CS_DS);
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fails += CHECK_PROC (dts, DS);
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fails += CHECK_PROC (ds_cpl, DS_CPL);
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fails += CHECK_PROC (dtes64, DTES64);
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fails += CHECK_PROC (est, EIST);
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fails += CHECK_PROC (enqcmd, ENQCMD);
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fails += CHECK_PROC (erms, ERMS);
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fails += CHECK_PROC (f16c, F16C);
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fails += CHECK_PROC (fma, FMA);
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fails += CHECK_PROC (fma4, FMA4);
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fails += CHECK_PROC (fpu, FPU);
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fails += CHECK_PROC (fsgsbase, FSGSBASE);
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fails += CHECK_PROC (fsrm, FSRM);
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fails += CHECK_PROC (fxsr, FXSR);
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fails += CHECK_PROC (gfni, GFNI);
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fails += CHECK_PROC (hle, HLE);
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fails += CHECK_PROC (ht, HTT);
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fails += CHECK_PROC (hybrid, HYBRID);
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fails += CHECK_PROC (ibrs, IBRS_IBPB);
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fails += CHECK_PROC (ibt, IBT);
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fails += CHECK_PROC (invariant_tsc, INVARIANT_TSC);
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fails += CHECK_PROC (invpcid, INVPCID);
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fails += CHECK_PROC (flush_l1d, L1D_FLUSH);
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fails += CHECK_PROC (lahf_lm, LAHF64_SAHF64);
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fails += CHECK_PROC (lm, LM);
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fails += CHECK_PROC (lwp, LWP);
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fails += CHECK_PROC (abm, LZCNT);
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fails += CHECK_PROC (mca, MCA);
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fails += CHECK_PROC (mce, MCE);
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fails += CHECK_PROC (md_clear, MD_CLEAR);
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fails += CHECK_PROC (mmx, MMX);
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fails += CHECK_PROC (monitor, MONITOR);
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fails += CHECK_PROC (movbe, MOVBE);
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fails += CHECK_PROC (movdiri, MOVDIRI);
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fails += CHECK_PROC (movdir64b, MOVDIR64B);
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fails += CHECK_PROC (mpx, MPX);
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fails += CHECK_PROC (msr, MSR);
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fails += CHECK_PROC (mtrr, MTRR);
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fails += CHECK_PROC (nx, NX);
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fails += CHECK_PROC (ospke, OSPKE);
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#if 0
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/* NB: /proc/cpuinfo doesn't report this feature. */
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fails += CHECK_PROC (osxsave, OSXSAVE);
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#endif
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fails += CHECK_PROC (pae, PAE);
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fails += CHECK_PROC (pdpe1gb, PAGE1GB);
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fails += CHECK_PROC (pat, PAT);
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fails += CHECK_PROC (pbe, PBE);
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fails += CHECK_PROC (pcid, PCID);
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fails += CHECK_PROC (pclmulqdq, PCLMULQDQ);
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fails += CHECK_PROC (pconfig, PCONFIG);
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fails += CHECK_PROC (pdcm, PDCM);
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fails += CHECK_PROC (pge, PGE);
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fails += CHECK_PROC (pks, PKS);
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fails += CHECK_PROC (pku, PKU);
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fails += CHECK_PROC (popcnt, POPCNT);
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fails += CHECK_PROC (3dnowprefetch, PREFETCHW);
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fails += CHECK_PROC (prefetchwt1, PREFETCHWT1);
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fails += CHECK_PROC (ptwrite, PTWRITE);
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fails += CHECK_PROC (pse, PSE);
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fails += CHECK_PROC (pse36, PSE_36);
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fails += CHECK_PROC (psn, PSN);
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fails += CHECK_PROC (rdpid, RDPID);
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fails += CHECK_PROC (rdrand, RDRAND);
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fails += CHECK_PROC (rdseed, RDSEED);
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fails += CHECK_PROC (rdt_a, RDT_A);
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fails += CHECK_PROC (cqm, RDT_M);
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fails += CHECK_PROC (rdtscp, RDTSCP);
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fails += CHECK_PROC (rtm, RTM);
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fails += CHECK_PROC (sdbg, SDBG);
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fails += CHECK_PROC (sep, SEP);
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fails += CHECK_PROC (serialize, SERIALIZE);
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fails += CHECK_PROC (sgx, SGX);
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fails += CHECK_PROC (sgx_lc, SGX_LC);
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fails += CHECK_PROC (sha_ni, SHA);
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fails += CHECK_PROC (shstk, SHSTK);
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fails += CHECK_PROC (smap, SMAP);
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fails += CHECK_PROC (smep, SMEP);
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fails += CHECK_PROC (smx, SMX);
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fails += CHECK_PROC (ss, SS);
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fails += CHECK_PROC (ssbd, SSBD);
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fails += CHECK_PROC (sse, SSE);
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fails += CHECK_PROC (sse2, SSE2);
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fails += CHECK_PROC (pni, SSE3);
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fails += CHECK_PROC (sse4_1, SSE4_1);
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fails += CHECK_PROC (sse4_2, SSE4_2);
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fails += CHECK_PROC (sse4a, SSE4A);
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fails += CHECK_PROC (ssse3, SSSE3);
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fails += CHECK_PROC (stibp, STIBP);
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fails += CHECK_PROC (svm, SVM);
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#ifdef __x86_64__
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/* NB: SYSCALL_SYSRET is 64-bit only. */
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fails += CHECK_PROC (syscall, SYSCALL_SYSRET);
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#endif
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fails += CHECK_PROC (tbm, TBM);
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fails += CHECK_PROC (tm, TM);
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fails += CHECK_PROC (tm2, TM2);
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fails += CHECK_PROC (intel_pt, TRACE);
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fails += CHECK_PROC (tsc, TSC);
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fails += CHECK_PROC (tsc_adjust, TSC_ADJUST);
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fails += CHECK_PROC (tsc_deadline_timer, TSC_DEADLINE);
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fails += CHECK_PROC (tsxldtrk, TSXLDTRK);
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fails += CHECK_PROC (umip, UMIP);
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fails += CHECK_PROC (vaes, VAES);
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fails += CHECK_PROC (vme, VME);
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fails += CHECK_PROC (vmx, VMX);
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fails += CHECK_PROC (vpclmulqdq, VPCLMULQDQ);
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fails += CHECK_PROC (waitpkg, WAITPKG);
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fails += CHECK_PROC (wbnoinvd, WBNOINVD);
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fails += CHECK_PROC (x2apic, X2APIC);
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fails += CHECK_PROC (xfd, XFD);
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fails += CHECK_PROC (xgetbv1, XGETBV_ECX_1);
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fails += CHECK_PROC (xop, XOP);
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fails += CHECK_PROC (xsave, XSAVE);
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fails += CHECK_PROC (xsavec, XSAVEC);
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fails += CHECK_PROC (xsaveopt, XSAVEOPT);
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fails += CHECK_PROC (xsaves, XSAVES);
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fails += CHECK_PROC (xtpr, XTPRUPDCTRL);
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printf ("%d differences between /proc/cpuinfo and glibc code.\n", fails);
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return (fails != 0);
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}
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#include "../../../test-skeleton.c"
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