[dpdk-dev] [PATCH v2 1/5] eal/x86: define architecture specific rdtsc hz
Gowrishankar
gowrishankar.m at linux.vnet.ibm.com
Fri Sep 22 10:25:33 CEST 2017
From: Jerin Jacob <jerin.jacob at caviumnetworks.com>
CC: Bruce Richardson <bruce.richardson at intel.com>
CC: Konstantin Ananyev <konstantin.ananyev at intel.com>
Signed-off-by: Jerin Jacob <jerin.jacob at caviumnetworks.com>
Acked-by: Anatoly Burakov <anatoly.burakov at intel.com>
---
lib/librte_eal/common/include/arch/x86/rte_cycles.h | 13 +++++++++++++
1 file changed, 13 insertions(+)
diff --git a/lib/librte_eal/common/include/arch/x86/rte_cycles.h b/lib/librte_eal/common/include/arch/x86/rte_cycles.h
index 1bb3e1d..e2661e2 100644
--- a/lib/librte_eal/common/include/arch/x86/rte_cycles.h
+++ b/lib/librte_eal/common/include/arch/x86/rte_cycles.h
@@ -77,6 +77,19 @@
return tsc.tsc_64;
}
+/**
+ * Get the number of rdtsc cycles in one second if the architecture supports.
+ *
+ * @return
+ * The number of rdtsc cycles in one second. Return zero if the architecture
+ * support is not available.
+ */
+static inline uint64_t
+rte_rdtsc_arch_hz(void)
+{
+ return 0;
+}
+
static inline uint64_t
rte_rdtsc_precise(void)
{
--
1.9.1
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