__ppc_get_timebase() is GNU extension and is more efficient
v2: Advoid breaking other ppc_64 flatforms. The __ppc_get_timebase()
seems to be specific to powerpc platform and with GLIBC.
Signed-off-by: Thinh Tran <thin...@linux.vnet.ibm.com>
---
lib/librte_eal/common/include/arch/ppc_64/rte_cycles.h | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/lib/librte_eal/common/include/arch/ppc_64/rte_cycles.h
b/lib/librte_eal/common/include/arch/ppc_64/rte_cycles.h
index 8f2e98642..1c3fd556e 100644
--- a/lib/librte_eal/common/include/arch/ppc_64/rte_cycles.h
+++ b/lib/librte_eal/common/include/arch/ppc_64/rte_cycles.h
@@ -14,6 +14,9 @@ extern "C" {
#include <rte_byteorder.h>
#include <rte_common.h>
+#if defined(__powerpc__) && defined(__GLIBC__)
+#include <sys/platform/ppc.h>
+#endif
/**
* Read the time base register.
@@ -24,6 +27,9 @@ extern "C" {
static inline uint64_t
rte_rdtsc(void)
{
+#if defined(__powerpc__) && defined(__GLIBC__)
+ return __ppc_get_timebase();
+#else
union {
uint64_t tsc_64;
RTE_STD_C11
@@ -50,6 +56,7 @@ rte_rdtsc(void)
[tmp] "=r"(tmp)
);
return tsc.tsc_64;
+#endif /* __powerpc__ && __GLIBC__ */
}
static inline uint64_t
--
2.17.1
