Need to resubmit a new patch, since the same code may be used by other
ppc platform such as FreeBSD that may not have the sys/platform/ppc.h
Thinh Tran
On 1/28/2020 3:02 PM, Thinh Tran wrote:
__ppc_get_timebase() is GNU extention and is more efficient
Signed-off-by: Thinh Tran <thin...@linux.vnet.ibm.com>
---
.../common/include/arch/ppc_64/rte_cycles.h | 28 ++-----------------
1 file changed, 2 insertions(+), 26 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 8f2e98642..871f9b6e4 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 +14,7 @@ extern "C" {
#include <rte_byteorder.h>
#include <rte_common.h>
+#include <sys/platform/ppc.h>
/**
* Read the time base register.
@@ -24,32 +25,7 @@ extern "C" {
static inline uint64_t
rte_rdtsc(void)
{
- union {
- uint64_t tsc_64;
- RTE_STD_C11
- 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;
-
- asm volatile(
- "0:\n"
- "mftbu %[hi32]\n"
- "mftb %[lo32]\n"
- "mftbu %[tmp]\n"
- "cmpw %[tmp],%[hi32]\n"
- "bne 0b\n"
- : [hi32] "=r"(tsc.hi_32), [lo32] "=r"(tsc.lo_32),
- [tmp] "=r"(tmp)
- );
- return tsc.tsc_64;
+ return __ppc_get_timebase();
}
static inline uint64_t
