From patchwork Fri Jan 22 12:23:45 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Gerd Hoffmann X-Patchwork-Id: 8089721 Return-Path: X-Original-To: patchwork-qemu-devel@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 8196B9F1CC for ; Fri, 22 Jan 2016 12:31:39 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id C680A203AA for ; Fri, 22 Jan 2016 12:31:38 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 0DBEE20361 for ; Fri, 22 Jan 2016 12:31:38 +0000 (UTC) Received: from localhost ([::1]:53065 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1aMasL-00052j-FU for patchwork-qemu-devel@patchwork.kernel.org; Fri, 22 Jan 2016 07:31:37 -0500 Received: from eggs.gnu.org ([2001:4830:134:3::10]:56492) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1aMakx-00018q-9x for qemu-devel@nongnu.org; Fri, 22 Jan 2016 07:24:00 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1aMakt-0001fj-U1 for qemu-devel@nongnu.org; Fri, 22 Jan 2016 07:23:59 -0500 Received: from mx1.redhat.com ([209.132.183.28]:36722) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1aMakt-0001fM-KW for qemu-devel@nongnu.org; Fri, 22 Jan 2016 07:23:55 -0500 Received: from int-mx13.intmail.prod.int.phx2.redhat.com (int-mx13.intmail.prod.int.phx2.redhat.com [10.5.11.26]) by mx1.redhat.com (Postfix) with ESMTPS id 4799BAED2F; Fri, 22 Jan 2016 12:23:55 +0000 (UTC) Received: from nilsson.home.kraxel.org (ovpn-116-19.ams2.redhat.com [10.36.116.19]) by int-mx13.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id u0MCNr7h022154; Fri, 22 Jan 2016 07:23:54 -0500 Received: by nilsson.home.kraxel.org (Postfix, from userid 500) id 941D380AD2; Fri, 22 Jan 2016 13:23:50 +0100 (CET) From: Gerd Hoffmann To: qemu-devel@nongnu.org Date: Fri, 22 Jan 2016 13:23:45 +0100 Message-Id: <1453465427-6961-5-git-send-email-kraxel@redhat.com> In-Reply-To: <1453465427-6961-1-git-send-email-kraxel@redhat.com> References: <1453465427-6961-1-git-send-email-kraxel@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.26 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x X-Received-From: 209.132.183.28 Cc: =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= , Gerd Hoffmann , "Michael S. Tsirkin" Subject: [Qemu-devel] [PATCH v2 4/6] virtio-gpu: maintain command queue X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org X-Spam-Status: No, score=-6.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP We'll go take out the commands we receive out of the virt queue and put them into a linked list, to decouple virtio queue handling from actual command processing. Also move cmd processing to new virtio_gpu_handle_ctrl func, so we can easily kick it from different places. Signed-off-by: Gerd Hoffmann --- hw/display/virtio-gpu.c | 63 +++++++++++++++++++++++++++--------------- include/hw/virtio/virtio-gpu.h | 1 + 2 files changed, 42 insertions(+), 22 deletions(-) diff --git a/hw/display/virtio-gpu.c b/hw/display/virtio-gpu.c index 7e79a9c..d4ee34d 100644 --- a/hw/display/virtio-gpu.c +++ b/hw/display/virtio-gpu.c @@ -754,33 +754,21 @@ static void virtio_gpu_handle_cursor_cb(VirtIODevice *vdev, VirtQueue *vq) qemu_bh_schedule(g->cursor_bh); } -static void virtio_gpu_handle_ctrl(VirtIODevice *vdev, VirtQueue *vq) +static void virtio_gpu_process_cmdq(VirtIOGPU *g) { - VirtIOGPU *g = VIRTIO_GPU(vdev); struct virtio_gpu_ctrl_command *cmd; - if (!virtio_queue_ready(vq)) { - return; - } - -#ifdef CONFIG_VIRGL - if (!g->renderer_inited && g->use_virgl_renderer) { - virtio_gpu_virgl_init(g); - g->renderer_inited = true; - } -#endif - - cmd = g_new(struct virtio_gpu_ctrl_command, 1); - while (virtqueue_pop(vq, &cmd->elem)) { - cmd->vq = vq; - cmd->error = 0; - cmd->finished = false; - if (virtio_gpu_stats_enabled(g->conf)) { - g->stats.requests++; - } + while (!QTAILQ_EMPTY(&g->cmdq)) { + cmd = QTAILQ_FIRST(&g->cmdq); + /* process command */ VIRGL(g, virtio_gpu_virgl_process_cmd, virtio_gpu_simple_process_cmd, g, cmd); + QTAILQ_REMOVE(&g->cmdq, cmd, next); + if (virtio_gpu_stats_enabled(g->conf)) { + g->stats.requests++; + } + if (!cmd->finished) { QTAILQ_INSERT_TAIL(&g->fenceq, cmd, next); g->inflight++; @@ -790,11 +778,41 @@ static void virtio_gpu_handle_ctrl(VirtIODevice *vdev, VirtQueue *vq) } fprintf(stderr, "inflight: %3d (+)\r", g->inflight); } - cmd = g_new(struct virtio_gpu_ctrl_command, 1); + } else { + g_free(cmd); } } +} + +static void virtio_gpu_handle_ctrl(VirtIODevice *vdev, VirtQueue *vq) +{ + VirtIOGPU *g = VIRTIO_GPU(vdev); + struct virtio_gpu_ctrl_command *cmd; + + if (!virtio_queue_ready(vq)) { + return; + } + +#ifdef CONFIG_VIRGL + if (!g->renderer_inited && g->use_virgl_renderer) { + virtio_gpu_virgl_init(g); + g->renderer_inited = true; + } +#endif + + cmd = g_new(struct virtio_gpu_ctrl_command, 1); + while (virtqueue_pop(vq, &cmd->elem)) { + cmd->vq = vq; + cmd->error = 0; + cmd->finished = false; + cmd->waiting = false; + QTAILQ_INSERT_TAIL(&g->cmdq, cmd, next); + cmd = g_new(struct virtio_gpu_ctrl_command, 1); + } g_free(cmd); + virtio_gpu_process_cmdq(g); + #ifdef CONFIG_VIRGL if (g->use_virgl_renderer) { virtio_gpu_virgl_fence_poll(g); @@ -920,6 +938,7 @@ static void virtio_gpu_device_realize(DeviceState *qdev, Error **errp) g->ctrl_bh = qemu_bh_new(virtio_gpu_ctrl_bh, g); g->cursor_bh = qemu_bh_new(virtio_gpu_cursor_bh, g); QTAILQ_INIT(&g->reslist); + QTAILQ_INIT(&g->cmdq); QTAILQ_INIT(&g->fenceq); g->enabled_output_bitmask = 1; diff --git a/include/hw/virtio/virtio-gpu.h b/include/hw/virtio/virtio-gpu.h index 9b279d7..f7e7a52 100644 --- a/include/hw/virtio/virtio-gpu.h +++ b/include/hw/virtio/virtio-gpu.h @@ -94,6 +94,7 @@ typedef struct VirtIOGPU { DeviceState *qdev; QTAILQ_HEAD(, virtio_gpu_simple_resource) reslist; + QTAILQ_HEAD(, virtio_gpu_ctrl_command) cmdq; QTAILQ_HEAD(, virtio_gpu_ctrl_command) fenceq; struct virtio_gpu_scanout scanout[VIRTIO_GPU_MAX_SCANOUT];