eal: switch to architecture specific pause function

[dpdk.git] / lib / librte_eal / common / eal_common_timer.c

diff --git a/lib/librte_eal/common/eal_common_timer.c b/lib/librte_eal/common/eal_common_timer.c
index 255f995..ed0b16d 100644 (file)
--- a/lib/librte_eal/common/eal_common_timer.c
+++ b/lib/librte_eal/common/eal_common_timer.c
@@ -36,20 +36,23 @@
 #include <unistd.h>
 #include <inttypes.h>
 #include <sys/types.h>
-#include <sys/sysctl.h>
 #include <errno.h>
 
 #include <rte_common.h>
 #include <rte_log.h>
 #include <rte_cycles.h>
+#include <rte_pause.h>
 
 #include "eal_private.h"
 
 /* The frequency of the RDTSC timer resolution */
 static uint64_t eal_tsc_resolution_hz;
 
+/* Pointer to user delay function */
+void (*rte_delay_us)(unsigned int) = NULL;
+
 void
-rte_delay_us(unsigned us)
+rte_delay_us_block(unsigned int us)
 {
        const uint64_t start = rte_get_timer_cycles();
        const uint64_t ticks = (uint64_t)us * rte_get_timer_hz() / 1E6;
@@ -82,6 +85,18 @@ set_tsc_freq(void)
        if (!freq)
                freq = estimate_tsc_freq();
 
-       RTE_LOG(INFO, EAL, "TSC frequency is ~%" PRIu64 " KHz\n", freq / 1000);
+       RTE_LOG(DEBUG, EAL, "TSC frequency is ~%" PRIu64 " KHz\n", freq / 1000);
        eal_tsc_resolution_hz = freq;
 }
+
+void rte_delay_us_callback_register(void (*userfunc)(unsigned int))
+{
+       rte_delay_us = userfunc;
+}
+
+static void __attribute__((constructor))
+rte_timer_init(void)
+{
+       /* set rte_delay_us_block as a delay function */
+       rte_delay_us_callback_register(rte_delay_us_block);
+}