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 56CA8C433F5 for ; Fri, 27 May 2022 06:02:47 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S244719AbiE0GCp (ORCPT ); Fri, 27 May 2022 02:02:45 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40034 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S243854AbiE0GC2 (ORCPT ); Fri, 27 May 2022 02:02:28 -0400 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 8C768115F for ; Thu, 26 May 2022 23:02:26 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1653631345; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=a2AG63orrKCpw2C/hrorxbwfbuZWC+KiL5/NIOQfX70=; b=U9icT9kxIZQ/X6dPsKpi9z7nlbf4xvHDYE6AVtMLvtfZSdo+RKPcTE9GU2+kuSAVW5Fx0B gVBOieFSNAYtQPfg12psaT3/wJFrBB/zbXFi9n1/JriRp+Ay+eVdTmb3fx3HCr5I9x+3Jl G/FtSGOb6ibaZmcVCaA7bblnE87LEro= Received: from mimecast-mx02.redhat.com (mx3-rdu2.redhat.com [66.187.233.73]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-49-CL_5IMauPUGU_Y-WldBfVg-1; Fri, 27 May 2022 02:02:20 -0400 X-MC-Unique: CL_5IMauPUGU_Y-WldBfVg-1 Received: from smtp.corp.redhat.com (int-mx06.intmail.prod.int.rdu2.redhat.com [10.11.54.6]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 64D8C1C0690C; Fri, 27 May 2022 06:02:19 +0000 (UTC) Received: from localhost.localdomain (ovpn-13-240.pek2.redhat.com [10.72.13.240]) by smtp.corp.redhat.com (Postfix) with ESMTP id B7C742166B26; Fri, 27 May 2022 06:02:08 +0000 (UTC) From: Jason Wang To: mst@redhat.com, jasowang@redhat.com, virtualization@lists.linux-foundation.org, linux-kernel@vger.kernel.org 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, xuanzhuo@linux.alibaba.com, Vineeth Vijayan , Peter Oberparleiter , linux-s390@vger.kernel.org Subject: [PATCH V6 5/9] virtio-mmio: implement synchronize_cbs() Date: Fri, 27 May 2022 14:01:16 +0800 Message-Id: <20220527060120.20964-6-jasowang@redhat.com> In-Reply-To: <20220527060120.20964-1-jasowang@redhat.com> References: <20220527060120.20964-1-jasowang@redhat.com> MIME-Version: 1.0 Content-type: text/plain Content-Transfer-Encoding: 8bit X-Scanned-By: MIMEDefang 2.78 on 10.11.54.6 Precedence: bulk List-ID: X-Mailing-List: linux-s390@vger.kernel.org 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 --- 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