diff options
| author | Richard Henderson <richard.henderson@linaro.org> | 2023-05-17 21:12:08 -0700 |
|---|---|---|
| committer | Richard Henderson <richard.henderson@linaro.org> | 2023-05-23 16:49:28 -0700 |
| commit | 6bc12fd04243a5bfe28bc5d6ed8b0a7ed40f5de4 (patch) | |
| tree | cdeb19ccff9869710f4eaa1dece99a493c34e44f /host | |
| parent | 44fc71687377bfcdfffa448bb41d228ef3caf46c (diff) | |
util: Add cpuinfo-i386.c
Add cpuinfo.h for i386 and x86_64, and the initialization
for that in util/. Populate that with a slightly altered
copy of the tcg host probing code. Other uses of cpuid.h
will be adjusted one patch at a time.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Diffstat (limited to 'host')
| -rw-r--r-- | host/include/i386/host/cpuinfo.h | 38 | ||||
| -rw-r--r-- | host/include/x86_64/host/cpuinfo.h | 1 |
2 files changed, 39 insertions, 0 deletions
diff --git a/host/include/i386/host/cpuinfo.h b/host/include/i386/host/cpuinfo.h new file mode 100644 index 0000000000..e6f7461378 --- /dev/null +++ b/host/include/i386/host/cpuinfo.h @@ -0,0 +1,38 @@ +/* + * SPDX-License-Identifier: GPL-2.0-or-later + * Host specific cpu indentification for x86. + */ + +#ifndef HOST_CPUINFO_H +#define HOST_CPUINFO_H + +/* Digested version of <cpuid.h> */ + +#define CPUINFO_ALWAYS (1u << 0) /* so cpuinfo is nonzero */ +#define CPUINFO_CMOV (1u << 1) +#define CPUINFO_MOVBE (1u << 2) +#define CPUINFO_LZCNT (1u << 3) +#define CPUINFO_POPCNT (1u << 4) +#define CPUINFO_BMI1 (1u << 5) +#define CPUINFO_BMI2 (1u << 6) +#define CPUINFO_SSE2 (1u << 7) +#define CPUINFO_SSE4 (1u << 8) +#define CPUINFO_AVX1 (1u << 9) +#define CPUINFO_AVX2 (1u << 10) +#define CPUINFO_AVX512F (1u << 11) +#define CPUINFO_AVX512VL (1u << 12) +#define CPUINFO_AVX512BW (1u << 13) +#define CPUINFO_AVX512DQ (1u << 14) +#define CPUINFO_AVX512VBMI2 (1u << 15) +#define CPUINFO_ATOMIC_VMOVDQA (1u << 16) + +/* Initialized with a constructor. */ +extern unsigned cpuinfo; + +/* + * We cannot rely on constructor ordering, so other constructors must + * use the function interface rather than the variable above. + */ +unsigned cpuinfo_init(void); + +#endif /* HOST_CPUINFO_H */ diff --git a/host/include/x86_64/host/cpuinfo.h b/host/include/x86_64/host/cpuinfo.h new file mode 100644 index 0000000000..67debab9a0 --- /dev/null +++ b/host/include/x86_64/host/cpuinfo.h @@ -0,0 +1 @@ +#include "host/include/i386/host/cpuinfo.h" |