[S] Change in gapk[master]: aarch64: add get_cycles

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; -- To view, visit https://gerrit.osmocom.org/c/gapk/+/33620 To unsubscribe, or for help writing mail filters, visit https://gerrit.osmocom.org/settings Gerrit-Project: gapk Gerrit-Branch: master Gerrit-Change-Id: I489fb8346fbc7440f40695f01d80a89b90761165 Gerrit-Change-Number: 33620 Gerrit-PatchSet: 1 Gerrit-Owner: Hoernchen <ewild(a)sysmocom.de> Gerrit-MessageType: newchange