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-rw-r--r--arch/arm64/include/asm/arm_generic.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/arm64/include/asm/arm_generic.h b/arch/arm64/include/asm/arm_generic.h
index df2aeb8..6ece2f1 100644
--- a/arch/arm64/include/asm/arm_generic.h
+++ b/arch/arm64/include/asm/arm_generic.h
@@ -83,6 +83,7 @@ static inline cycle_t arch_counter_get_cntpct(void)
{
cycle_t cval;
+ isb();
asm volatile("mrs %0, cntpct_el0" : "=r" (cval));
return cval;
@@ -92,6 +93,7 @@ static inline cycle_t arch_counter_get_cntvct(void)
{
cycle_t cval;
+ isb();
asm volatile("mrs %0, cntvct_el0" : "=r" (cval));
return cval;
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