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 F0B91C433EF for ; Mon, 25 Apr 2022 02:45:59 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240457AbiDYCs7 (ORCPT ); Sun, 24 Apr 2022 22:48:59 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35830 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S240445AbiDYCsl (ORCPT ); Sun, 24 Apr 2022 22:48:41 -0400 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id AB22C615C for ; Sun, 24 Apr 2022 19:45:24 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1650854723; 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=zE4BJVkXb+UoGK7fe/PzJ3m4ViAol/YAukmnEmZTdLY=; b=gB5ago2seSfKuq7doJ75xoYllauM7Q69Lj9g0ifv0L76JJzyqQSQaxSSWpJs6qiO52chF6 QH/x0s7Eu9lsWElfZsHMumf/I5jHbl/glSZI33oyqoiEmJ6WgXkjMUHxFfR9wq/H7p9ByV gkK8erunRwc22qh7DPXW2E55a4/bdh0= Received: from mimecast-mx02.redhat.com (mimecast-mx02.redhat.com [66.187.233.88]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-650-3xBQoKsmO42DdUNzzRnUGw-1; Sun, 24 Apr 2022 22:45:19 -0400 X-MC-Unique: 3xBQoKsmO42DdUNzzRnUGw-1 Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.rdu2.redhat.com [10.11.54.5]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 950A5811E7A; Mon, 25 Apr 2022 02:45:18 +0000 (UTC) Received: from localhost.localdomain (ovpn-13-160.pek2.redhat.com [10.72.13.160]) by smtp.corp.redhat.com (Postfix) with ESMTP id 2DD299E71; Mon, 25 Apr 2022 02:45:04 +0000 (UTC) From: Jason Wang To: jasowang@redhat.com, mst@redhat.com, linux-kernel@vger.kernel.org, virtualization@lists.linux-foundation.org Cc: sgarzare@redhat.com, eperezma@redhat.com, lulu@redhat.com, tglx@linutronix.de, peterz@infradead.org, paulmck@kernel.org, maz@kernel.org, pasic@linux.ibm.com, cohuck@redhat.com Subject: [PATCH V3 5/9] virtio-mmio: implement synchronize_cbs() Date: Mon, 25 Apr 2022 10:44:14 +0800 Message-Id: <20220425024418.8415-6-jasowang@redhat.com> In-Reply-To: <20220425024418.8415-1-jasowang@redhat.com> References: <20220425024418.8415-1-jasowang@redhat.com> MIME-Version: 1.0 Content-type: text/plain Content-Transfer-Encoding: 8bit X-Scanned-By: MIMEDefang 2.79 on 10.11.54.5 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@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 Signed-off-by: Jason Wang --- drivers/virtio/virtio_mmio.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/drivers/virtio/virtio_mmio.c b/drivers/virtio/virtio_mmio.c index 56128b9c46eb..4a3b66e4e198 100644 --- a/drivers/virtio/virtio_mmio.c +++ b/drivers/virtio/virtio_mmio.c @@ -345,6 +345,14 @@ 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 index, void (*callback)(struct virtqueue *vq), const char *name, bool ctx) @@ -541,6 +549,7 @@ 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