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-rw-r--r--include/asm-powerpc/time.h14
1 files changed, 13 insertions, 1 deletions
diff --git a/include/asm-powerpc/time.h b/include/asm-powerpc/time.h
index 99bfe328176..410e795f7d4 100644
--- a/include/asm-powerpc/time.h
+++ b/include/asm-powerpc/time.h
@@ -30,7 +30,8 @@ extern unsigned long tb_ticks_per_usec;
extern unsigned long tb_ticks_per_sec;
extern u64 tb_to_xs;
extern unsigned tb_to_us;
-extern u64 tb_last_stamp;
+extern unsigned long tb_last_stamp;
+extern u64 tb_last_jiffy;
DECLARE_PER_CPU(unsigned long, last_jiffy);
@@ -113,6 +114,17 @@ static inline unsigned int get_rtcl(void)
return rtcl;
}
+static inline u64 get_rtc(void)
+{
+ unsigned int hi, lo, hi2;
+
+ do {
+ asm volatile("mfrtcu %0; mfrtcl %1; mfrtcu %2"
+ : "=r" (hi), "=r" (lo), "=r" (hi2));
+ } while (hi2 != hi);
+ return (u64)hi * 1000000000 + lo;
+}
+
#ifdef CONFIG_PPC64
static inline u64 get_tb(void)
{