From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4FEF3C433EF for ; Fri, 27 May 2022 07:32:46 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230271AbiE0Hco (ORCPT ); Fri, 27 May 2022 03:32:44 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47074 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1347154AbiE0Hcn (ORCPT ); Fri, 27 May 2022 03:32:43 -0400 Received: from out199-1.us.a.mail.aliyun.com (out199-1.us.a.mail.aliyun.com [47.90.199.1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 94979F748B; Fri, 27 May 2022 00:32:42 -0700 (PDT) X-Alimail-AntiSpam: AC=PASS;BC=-1|-1;BR=01201311R121e4;CH=green;DM=||false|;DS=||;FP=0|-1|-1|-1|0|-1|-1|-1;HT=e01e04394;MF=xuanzhuo@linux.alibaba.com;NM=1;PH=DS;RN=16;SR=0;TI=SMTPD_---0VEW8612_1653636756; Received: from localhost(mailfrom:xuanzhuo@linux.alibaba.com fp:SMTPD_---0VEW8612_1653636756) by smtp.aliyun-inc.com(127.0.0.1); Fri, 27 May 2022 15:32:37 +0800 Message-ID: <1653636748.5919-5-xuanzhuo@linux.alibaba.com> Subject: Re: [PATCH V6 5/9] virtio-mmio: implement synchronize_cbs() Date: Fri, 27 May 2022 15:32:28 +0800 From: Xuan Zhuo To: Jason Wang Cc: tglx@linutronix.de, peterz@infradead.org, paulmck@kernel.org, maz@kernel.org, pasic@linux.ibm.com, cohuck@redhat.com, eperezma@redhat.com, lulu@redhat.com, sgarzare@redhat.com, Vineeth Vijayan , Peter Oberparleiter , linux-s390@vger.kernel.org, mst@redhat.com, jasowang@redhat.com, virtualization@lists.linux-foundation.org, linux-kernel@vger.kernel.org References: <20220527060120.20964-1-jasowang@redhat.com> <20220527060120.20964-6-jasowang@redhat.com> In-Reply-To: <20220527060120.20964-6-jasowang@redhat.com> Precedence: bulk List-ID: X-Mailing-List: linux-s390@vger.kernel.org On Fri, 27 May 2022 14:01:16 +0800, Jason Wang wrote: > Simply synchronize the platform irq that is used by us. > > Cc: Thomas Gleixner > Cc: Peter Zijlstra > Cc: "Paul E. McKenney" > Cc: Marc Zyngier > Cc: Halil Pasic > Cc: Cornelia Huck > Cc: Vineeth Vijayan > Cc: Peter Oberparleiter > Cc: linux-s390@vger.kernel.org > Reviewed-by: Cornelia Huck > Signed-off-by: Jason Wang Reviewed-by: Xuan Zhuo > --- > drivers/virtio/virtio_mmio.c | 8 ++++++++ > 1 file changed, 8 insertions(+) > > diff --git a/drivers/virtio/virtio_mmio.c b/drivers/virtio/virtio_mmio.c > index 839684d672af..c9699a59f93c 100644 > --- a/drivers/virtio/virtio_mmio.c > +++ b/drivers/virtio/virtio_mmio.c > @@ -345,6 +345,13 @@ static void vm_del_vqs(struct virtio_device *vdev) > free_irq(platform_get_irq(vm_dev->pdev, 0), vm_dev); > } > > +static void vm_synchronize_cbs(struct virtio_device *vdev) > +{ > + struct virtio_mmio_device *vm_dev = to_virtio_mmio_device(vdev); > + > + synchronize_irq(platform_get_irq(vm_dev->pdev, 0)); > +} > + > static struct virtqueue *vm_setup_vq(struct virtio_device *vdev, unsigned int index, > void (*callback)(struct virtqueue *vq), > const char *name, bool ctx) > @@ -541,6 +548,7 @@ static const struct virtio_config_ops virtio_mmio_config_ops = { > .finalize_features = vm_finalize_features, > .bus_name = vm_bus_name, > .get_shm_region = vm_get_shm_region, > + .synchronize_cbs = vm_synchronize_cbs, > }; > > > -- > 2.25.1 >