> > umonitor/umwait are user-level versions of the monitor/mwait > instructions. These allow the core to wait in a low-power state > until a specified cache line is accessed, a timeout occurs, > or the core is interrupted.
Isn't it a duplicate to: https://patches.dpdk.org/patch/76554/ ? > > Signed-off-by: Timothy McDaniel <timothy.mcdan...@intel.com> > --- > lib/librte_eal/x86/include/rte_cpuflags.h | 1 + > lib/librte_eal/x86/rte_cpuflags.c | 1 + > 2 files changed, 2 insertions(+) > > diff --git a/lib/librte_eal/x86/include/rte_cpuflags.h > b/lib/librte_eal/x86/include/rte_cpuflags.h > index c1d2036..ab2c3b3 100644 > --- a/lib/librte_eal/x86/include/rte_cpuflags.h > +++ b/lib/librte_eal/x86/include/rte_cpuflags.h > @@ -130,6 +130,7 @@ enum rte_cpu_flag_t { > RTE_CPUFLAG_CLDEMOTE, /**< Cache Line Demote */ > RTE_CPUFLAG_MOVDIRI, /**< Direct Store Instructions */ > RTE_CPUFLAG_MOVDIR64B, /**< Direct Store Instructions 64B > */ > + RTE_CPUFLAG_UMWAIT, /**< UMONITOR/UMWAIT */ > RTE_CPUFLAG_AVX512VP2INTERSECT, /**< AVX512 Two Register > Intersection */ > > /* The last item */ > diff --git a/lib/librte_eal/x86/rte_cpuflags.c > b/lib/librte_eal/x86/rte_cpuflags.c > index 30439e7..6bed3eb 100644 > --- a/lib/librte_eal/x86/rte_cpuflags.c > +++ b/lib/librte_eal/x86/rte_cpuflags.c > @@ -137,6 +137,7 @@ const struct feature_entry rte_cpu_feature_table[] = { > FEAT_DEF(CLDEMOTE, 0x00000007, 0, RTE_REG_ECX, 25) > FEAT_DEF(MOVDIRI, 0x00000007, 0, RTE_REG_ECX, 27) > FEAT_DEF(MOVDIR64B, 0x00000007, 0, RTE_REG_ECX, 28) > + FEAT_DEF(UMWAIT, 0x00000007, 0, RTE_REG_ECX, 5) > FEAT_DEF(AVX512VP2INTERSECT, 0x00000007, 0, RTE_REG_EDX, 8) > }; > > -- > 2.6.4
