From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:60815) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1WR4x4-0000zd-2U for qemu-devel@nongnu.org; Fri, 21 Mar 2014 15:18:03 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1WR4ww-0006gM-4J for qemu-devel@nongnu.org; Fri, 21 Mar 2014 15:17:58 -0400 Received: from greensocs.com ([178.33.234.66]:46141) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1WR4wv-0006gG-UR for qemu-devel@nongnu.org; Fri, 21 Mar 2014 15:17:50 -0400 From: fred.konrad@greensocs.com Date: Fri, 21 Mar 2014 20:17:29 +0100 Message-Id: <1395429454-24690-8-git-send-email-fred.konrad@greensocs.com> In-Reply-To: <1395429454-24690-1-git-send-email-fred.konrad@greensocs.com> References: <1395429454-24690-1-git-send-email-fred.konrad@greensocs.com> Subject: [Qemu-devel] [RFC PATCH 07/12] timer: add cpu_icount_to_ns function. List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: mark.burton@greensocs.com, fred.konrad@greensocs.com From: KONRAD Frederic This adds cpu_icount_to_ns function which is needed for reverse execution. It returns the time for a specific instruction. Signed-off-by: KONRAD Frederic --- cpus.c | 9 +++++++-- include/qemu/timer.h | 1 + 2 files changed, 8 insertions(+), 2 deletions(-) diff --git a/cpus.c b/cpus.c index 825d438..007de34 100644 --- a/cpus.c +++ b/cpus.c @@ -146,9 +146,9 @@ static int64_t cpu_get_icount_locked(int with_bias) } if (with_bias) { - return timers_state.qemu_icount_bias + (icount << icount_time_shift); + return timers_state.qemu_icount_bias + cpu_icount_to_ns(icount); } else { - return icount << icount_time_shift; + return cpu_icount_to_ns(icount); } } @@ -178,6 +178,11 @@ int64_t cpu_get_icount_wo_bias(void) return icount; } +int64_t cpu_icount_to_ns(int64_t icount) +{ + return icount << icount_time_shift; +} + /* return the host CPU cycle counter and handle stop/restart */ /* Caller must hold the BQL */ int64_t cpu_get_ticks(void) diff --git a/include/qemu/timer.h b/include/qemu/timer.h index da47194..0861d99 100644 --- a/include/qemu/timer.h +++ b/include/qemu/timer.h @@ -753,6 +753,7 @@ static inline int64_t get_clock(void) int64_t cpu_get_icount_wo_bias(void); int64_t cpu_get_icount(void); int64_t cpu_get_clock(void); +int64_t cpu_icount_to_ns(int64_t icount); /*******************************************/ /* host CPU ticks (if available) */ -- 1.8.1.4