From patchwork Tue Jul 2 14:18:47 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Gerd Hoffmann X-Patchwork-Id: 11027943 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 98EE51510 for ; Tue, 2 Jul 2019 14:19:22 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 7FAF528866 for ; Tue, 2 Jul 2019 14:19:22 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 7441C28891; Tue, 2 Jul 2019 14:19:22 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.2 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 3292128866 for ; Tue, 2 Jul 2019 14:19:22 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 9E38888BBA; Tue, 2 Jul 2019 14:19:16 +0000 (UTC) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by gabe.freedesktop.org (Postfix) with ESMTPS id BD26389F3C for ; Tue, 2 Jul 2019 14:19:14 +0000 (UTC) Received: from smtp.corp.redhat.com (int-mx07.intmail.prod.int.phx2.redhat.com [10.5.11.22]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 50D2130842CE; Tue, 2 Jul 2019 14:19:09 +0000 (UTC) Received: from sirius.home.kraxel.org (ovpn-116-96.ams2.redhat.com [10.36.116.96]) by smtp.corp.redhat.com (Postfix) with ESMTP id E2C9A1001B3C; Tue, 2 Jul 2019 14:19:07 +0000 (UTC) Received: by sirius.home.kraxel.org (Postfix, from userid 1000) id C063717444; Tue, 2 Jul 2019 16:19:03 +0200 (CEST) From: Gerd Hoffmann To: dri-devel@lists.freedesktop.org Subject: [PATCH v6 02/18] drm/virtio: switch virtio_gpu_wait_ioctl() to gem helper. Date: Tue, 2 Jul 2019 16:18:47 +0200 Message-Id: <20190702141903.1131-3-kraxel@redhat.com> In-Reply-To: <20190702141903.1131-1-kraxel@redhat.com> References: <20190702141903.1131-1-kraxel@redhat.com> X-Scanned-By: MIMEDefang 2.84 on 10.5.11.22 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.40]); Tue, 02 Jul 2019 14:19:14 +0000 (UTC) X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: David Airlie , open list , "open list:VIRTIO GPU DRIVER" , Gerd Hoffmann , gurchetansingh@chromium.org MIME-Version: 1.0 Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" X-Virus-Scanned: ClamAV using ClamSMTP Use drm_gem_reservation_object_wait() in virtio_gpu_wait_ioctl(). This also makes the ioctl run lockless. v5: handle lookup failure. v2: use reservation_object_test_signaled_rcu for VIRTGPU_WAIT_NOWAIT. Signed-off-by: Gerd Hoffmann Reviewed-by: Daniel Vetter --- drivers/gpu/drm/virtio/virtgpu_ioctl.c | 28 ++++++++++++-------------- 1 file changed, 13 insertions(+), 15 deletions(-) diff --git a/drivers/gpu/drm/virtio/virtgpu_ioctl.c b/drivers/gpu/drm/virtio/virtgpu_ioctl.c index 1b50c34a29dc..c06dde541491 100644 --- a/drivers/gpu/drm/virtio/virtgpu_ioctl.c +++ b/drivers/gpu/drm/virtio/virtgpu_ioctl.c @@ -464,23 +464,21 @@ static int virtio_gpu_wait_ioctl(struct drm_device *dev, void *data, struct drm_file *file) { struct drm_virtgpu_3d_wait *args = data; - struct drm_gem_object *gobj = NULL; - struct virtio_gpu_object *qobj = NULL; + struct drm_gem_object *obj; + long timeout = 15 * HZ; int ret; - bool nowait = false; - gobj = drm_gem_object_lookup(file, args->handle); - if (gobj == NULL) - return -ENOENT; - - qobj = gem_to_virtio_gpu_obj(gobj); - - if (args->flags & VIRTGPU_WAIT_NOWAIT) - nowait = true; - ret = virtio_gpu_object_wait(qobj, nowait); - - drm_gem_object_put_unlocked(gobj); - return ret; + if (args->flags & VIRTGPU_WAIT_NOWAIT) { + obj = drm_gem_object_lookup(file, args->handle); + if (obj == NULL) + return -ENOENT; + ret = reservation_object_test_signaled_rcu(obj->resv, true); + drm_gem_object_put_unlocked(obj); + return ret ? 0 : -EBUSY; + } + + return drm_gem_reservation_object_wait(file, args->handle, + true, timeout); } static int virtio_gpu_get_caps_ioctl(struct drm_device *dev,