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eal/x86: add CPU flag for WAITPKG

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Add a new CPUID flag indicating processor support for UMONITOR/UMWAIT
and TPAUSE instructions instruction.

Signed-off-by: Liang Ma <liang.j.ma@intel.com>
Signed-off-by: Anatoly Burakov <anatoly.burakov@intel.com>
Acked-by: Konstantin Ananyev <konstantin.ananyev@intel.com>
This commit is contained in:
Liang Ma 2020-10-27 14:59:01 +00:00 committed by Thomas Monjalon
parent 570e681079
commit e448a5a9ed
2 changed files with 4 additions and 0 deletions
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2
lib/librte_eal/x86/include/rte_cpuflags.h
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@ -132,6 +132,8 @@ enum rte_cpu_flag_t {
RTE_CPUFLAG_MOVDIR64B, /**< Direct Store Instructions 64B */
RTE_CPUFLAG_AVX512VP2INTERSECT, /**< AVX512 Two Register Intersection */
RTE_CPUFLAG_WAITPKG, /**< UMONITOR/UMWAIT/TPAUSE */
/* The last item */
RTE_CPUFLAG_NUMFLAGS, /**< This should always be the last! */
};

2
lib/librte_eal/x86/rte_cpuflags.c
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@ -110,6 +110,8 @@ const struct feature_entry rte_cpu_feature_table[] = {
FEAT_DEF(AVX512F, 0x00000007, 0, RTE_REG_EBX, 16)
FEAT_DEF(RDSEED, 0x00000007, 0, RTE_REG_EBX, 18)
FEAT_DEF(WAITPKG, 0x00000007, 0, RTE_REG_ECX, 5)
FEAT_DEF(LAHF_SAHF, 0x80000001, 0, RTE_REG_ECX, 0)
FEAT_DEF(LZCNT, 0x80000001, 0, RTE_REG_ECX, 4)