Hoernchen has uploaded this change for review. (
https://gerrit.osmocom.org/c/gapk/+/33620 )
Change subject: aarch64: add get_cycles
......................................................................
aarch64: add get_cycles
borrowed from arch/arm64/include/asm/arch_timer.h
Change-Id: I489fb8346fbc7440f40695f01d80a89b90761165
---
M include/osmocom/gapk/get_cycles.h
1 file changed, 21 insertions(+), 0 deletions(-)
git pull ssh://gerrit.osmocom.org:29418/gapk refs/changes/20/33620/1
diff --git a/include/osmocom/gapk/get_cycles.h
b/include/osmocom/gapk/get_cycles.h
index 40ac570..c225e4b 100644
--- a/include/osmocom/gapk/get_cycles.h
+++ b/include/osmocom/gapk/get_cycles.h
@@ -103,6 +103,16 @@
#endif
return ret & ~TICK_PRIV_BIT;
}
+#elif defined(__aarch64__)
+
+typedef unsigned long cycles_t;
+static inline cycles_t get_cycles()
+{
+ cycles_t cval;
+ asm volatile("isb" : : : "memory");
+ asm volatile("mrs %0, cntvct_el0" : "=r" (cval));
+ return cval;
+}
#elif defined(__PPC__)
#define CPU_FTR_601 0x00000100
typedef unsigned long cycles_t;
--
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Gerrit-Project: gapk
Gerrit-Branch: master
Gerrit-Change-Id: I489fb8346fbc7440f40695f01d80a89b90761165
Gerrit-Change-Number: 33620
Gerrit-PatchSet: 1
Gerrit-Owner: Hoernchen <[email protected]>
Gerrit-MessageType: newchange
