From: Liang Ma <liang.j...@intel.com>
Add a new CPUID flag indicating processor support for UMONITOR/UMWAIT
and TPAUSE instructions instruction.
Signed-off-by: Liang Ma <liang.j...@intel.com>
Signed-off-by: Anatoly Burakov <anatoly.bura...@intel.com>
Acked-by: Konstantin Ananyev <konstantin.anan...@intel.com>
---
Notes:
v6:
- Fix typos
- Better commit message
lib/librte_eal/x86/include/rte_cpuflags.h | 1 +
lib/librte_eal/x86/rte_cpuflags.c | 2 ++
2 files changed, 3 insertions(+)
diff --git a/lib/librte_eal/x86/include/rte_cpuflags.h
b/lib/librte_eal/x86/include/rte_cpuflags.h
index c1d20364d1..848ba9cbfb 100644
--- a/lib/librte_eal/x86/include/rte_cpuflags.h
+++ b/lib/librte_eal/x86/include/rte_cpuflags.h
@@ -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! */
};
diff --git a/lib/librte_eal/x86/rte_cpuflags.c
b/lib/librte_eal/x86/rte_cpuflags.c
index 30439e7951..0325c4b93b 100644
--- a/lib/librte_eal/x86/rte_cpuflags.c
+++ b/lib/librte_eal/x86/rte_cpuflags.c
@@ -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)
--
2.17.1
