[v8,01/10] eal: add new x86 cpuid support for WAITPKG
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Commit Message
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>
---
lib/librte_eal/x86/include/rte_cpuflags.h | 1 +
lib/librte_eal/x86/rte_cpuflags.c | 2 ++
2 files changed, 3 insertions(+)
@@ -132,6 +132,7 @@ 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! */
};
@@ -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)