[dpdk-dev] [PATCH] PPC64: add cpu cycle support to IBM POWER8 PPC64LE
Chao Zhu
chaozhu at linux.vnet.ibm.com
Mon Aug 3 09:16:18 CEST 2015
On IBM POWER8 PPC64 little endian architecture, the definition of tsc
union will be different. This patch fix this to enable the right output
from rte_rdtsc().
Signed-off-by: Chao Zhu <chaozhu at linux.vnet.ibm.com>
---
.../common/include/arch/ppc_64/rte_cycles.h | 5 +++++
1 files changed, 5 insertions(+), 0 deletions(-)
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 fd26e8e..e663c48 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
@@ -51,8 +51,13 @@ rte_rdtsc(void)
union {
uint64_t tsc_64;
struct {
+#if RTE_BYTE_ORDER == RTE_BIG_ENDIAN
uint32_t hi_32;
uint32_t lo_32;
+#else
+ uint32_t lo_32;
+ uint32_t hi_32;
+#endif
};
} tsc;
uint32_t tmp;
--
1.7.1
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