eal/ppc: fix cpu cycle count for little endian

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@linux.vnet.ibm.com>

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 (file)
--- 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;