From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:49782) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bElDn-0005GW-2I for qemu-devel@nongnu.org; Sun, 19 Jun 2016 18:29:42 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1bElDg-0002KV-FN for qemu-devel@nongnu.org; Sun, 19 Jun 2016 18:29:37 -0400 Received: from mail-lf0-x235.google.com ([2a00:1450:4010:c07::235]:33115) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bElDg-0002KN-7S for qemu-devel@nongnu.org; Sun, 19 Jun 2016 18:29:32 -0400 Received: by mail-lf0-x235.google.com with SMTP id f6so27240189lfg.0 for ; Sun, 19 Jun 2016 15:29:32 -0700 (PDT) From: Sergey Fedorov Date: Mon, 20 Jun 2016 01:28:28 +0300 Message-Id: <1466375313-7562-4-git-send-email-sergey.fedorov@linaro.org> In-Reply-To: <1466375313-7562-1-git-send-email-sergey.fedorov@linaro.org> References: <1466375313-7562-1-git-send-email-sergey.fedorov@linaro.org> Subject: [Qemu-devel] [RFC 3/8] cpus: Add 'qemu_work_cond' usage wrappers List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: patches@linaro.org, Sergey Fedorov , Sergey Fedorov , Paolo Bonzini , Peter Crosthwaite , Richard Henderson From: Sergey Fedorov Introducing these wrappers is a step towards CPU work support in user-mode emulation. Signed-off-by: Sergey Fedorov Signed-off-by: Sergey Fedorov --- cpus.c | 14 ++++++++++++-- 1 file changed, 12 insertions(+), 2 deletions(-) diff --git a/cpus.c b/cpus.c index 04687c85bcd4..f123eb707cc6 100644 --- a/cpus.c +++ b/cpus.c @@ -910,6 +910,16 @@ void qemu_init_cpu_loop(void) qemu_thread_get_self(&io_thread); } +static void wait_cpu_work(void) +{ + qemu_cond_wait(&qemu_work_cond, &qemu_global_mutex); +} + +static void signal_cpu_work(void) +{ + qemu_cond_broadcast(&qemu_work_cond); +} + static void queue_work_on_cpu(CPUState *cpu, struct qemu_work_item *wi) { qemu_mutex_lock(&cpu->work_mutex); @@ -943,7 +953,7 @@ void run_on_cpu(CPUState *cpu, run_on_cpu_func func, void *data) while (!atomic_mb_read(&wi.done)) { CPUState *self_cpu = current_cpu; - qemu_cond_wait(&qemu_work_cond, &qemu_global_mutex); + wait_cpu_work(); current_cpu = self_cpu; } } @@ -1002,7 +1012,7 @@ static void flush_queued_work(CPUState *cpu) } } qemu_mutex_unlock(&cpu->work_mutex); - qemu_cond_broadcast(&qemu_work_cond); + signal_cpu_work(); } static void qemu_wait_io_event_common(CPUState *cpu) -- 1.9.1