From patchwork Mon Feb 11 09:18:14 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hans Verkuil X-Patchwork-Id: 10805309 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 5CF5013BF for ; Mon, 11 Feb 2019 09:18:25 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 4E2DC299D8 for ; Mon, 11 Feb 2019 09:18:25 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 4244329C56; Mon, 11 Feb 2019 09:18:25 +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=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id D5F4E299D8 for ; Mon, 11 Feb 2019 09:18:24 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726358AbfBKJSW (ORCPT ); Mon, 11 Feb 2019 04:18:22 -0500 Received: from lb3-smtp-cloud9.xs4all.net ([194.109.24.30]:55999 "EHLO lb3-smtp-cloud9.xs4all.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726015AbfBKJSW (ORCPT ); Mon, 11 Feb 2019 04:18:22 -0500 Received: from tschai.fritz.box ([212.251.195.8]) by smtp-cloud9.xs4all.net with ESMTPA id t7jEgrcjwRO5Zt7jIg2zBo; Mon, 11 Feb 2019 10:18:20 +0100 From: Hans Verkuil To: linux-media@vger.kernel.org Cc: Dafna Hirschfeld , Paul Kocialkowski , Ezequiel Garcia , Hans Verkuil Subject: [PATCH 1/3] vb2: add requires_requests bit for stateless codecs Date: Mon, 11 Feb 2019 10:18:14 +0100 Message-Id: <20190211091816.33022-2-hverkuil-cisco@xs4all.nl> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190211091816.33022-1-hverkuil-cisco@xs4all.nl> References: <20190211091816.33022-1-hverkuil-cisco@xs4all.nl> MIME-Version: 1.0 X-CMAE-Envelope: MS4wfMP3vo0ujAS4UGBm8MBrZ0e0zc+lDAY95UwhAWyGIk1IGyg56LYP4J6lQLpO2Pgz5LE5tWgg+p79RzeU5DBuZo5K8vThdVRxydItboZnx6cjX33SgPtJ jmEQ8jRrrkWSjzzXbiXhQ5Yq9OKFXExxojSFmSp6UzjpvYVYC++k87y3v96CF+8ETh/GNbJD0lT5biFhMgso4Ls7f6vo+07vysS4gLaumy/DiyLJAKcqmdo/ cxqXf3b11qM8s1Ma5x8F8GpK0fX81R88dqZg71tlTcwh7kSbVXGgXcdp1K8blC1OKmG04UVXF/CRLEaqSV4TFEqSLYLrdFxUjL7lMUavVKs= Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Stateless codecs require the use of the Request API as opposed of it being optional. So add a bit to indicate this and let vb2 check for this. Signed-off-by: Hans Verkuil --- drivers/media/common/videobuf2/videobuf2-core.c | 5 ++++- drivers/media/common/videobuf2/videobuf2-v4l2.c | 6 ++++++ include/media/videobuf2-core.h | 3 +++ 3 files changed, 13 insertions(+), 1 deletion(-) diff --git a/drivers/media/common/videobuf2/videobuf2-core.c b/drivers/media/common/videobuf2/videobuf2-core.c index e07b6bdb6982..2c12b331ac5a 100644 --- a/drivers/media/common/videobuf2/videobuf2-core.c +++ b/drivers/media/common/videobuf2/videobuf2-core.c @@ -1516,7 +1516,7 @@ int vb2_core_qbuf(struct vb2_queue *q, unsigned int index, void *pb, if ((req && q->uses_qbuf) || (!req && vb->state != VB2_BUF_STATE_IN_REQUEST && - q->uses_requests)) { + (q->uses_requests || q->requires_requests))) { dprintk(1, "queue in wrong mode (qbuf vs requests)\n"); return -EBUSY; } @@ -2245,6 +2245,9 @@ int vb2_core_queue_init(struct vb2_queue *q) WARN_ON(!q->ops->buf_queue)) return -EINVAL; + if (WARN_ON(q->requires_requests && !q->supports_requests)) + return -EINVAL; + INIT_LIST_HEAD(&q->queued_list); INIT_LIST_HEAD(&q->done_list); spin_lock_init(&q->done_lock); diff --git a/drivers/media/common/videobuf2/videobuf2-v4l2.c b/drivers/media/common/videobuf2/videobuf2-v4l2.c index 3aeaea3af42a..8b15b7762c56 100644 --- a/drivers/media/common/videobuf2/videobuf2-v4l2.c +++ b/drivers/media/common/videobuf2/videobuf2-v4l2.c @@ -385,6 +385,10 @@ static int vb2_queue_or_prepare_buf(struct vb2_queue *q, struct media_device *md dprintk(1, "%s: queue uses requests\n", opname); return -EBUSY; } + if (q->requires_requests) { + dprintk(1, "%s: queue requires requests\n", opname); + return -EACCES; + } return 0; } else if (!q->supports_requests) { dprintk(1, "%s: queue does not support requests\n", opname); @@ -657,6 +661,8 @@ static void fill_buf_caps(struct vb2_queue *q, u32 *caps) #ifdef CONFIG_MEDIA_CONTROLLER_REQUEST_API if (q->supports_requests) *caps |= V4L2_BUF_CAP_SUPPORTS_REQUESTS; + if (q->requires_requests) + *caps |= V4L2_BUF_CAP_REQUIRES_REQUESTS; #endif } diff --git a/include/media/videobuf2-core.h b/include/media/videobuf2-core.h index 4849b865b908..8e4c16446a88 100644 --- a/include/media/videobuf2-core.h +++ b/include/media/videobuf2-core.h @@ -480,6 +480,8 @@ struct vb2_buf_ops { * has not been called. This is a vb1 idiom that has been adopted * also by vb2. * @supports_requests: this queue supports the Request API. + * @requires_requests: this queue requires the Request API. If this is set to 1, + * then supports_requests must be set to 1 as well. * @uses_qbuf: qbuf was used directly for this queue. Set to 1 the first * time this is called. Set to 0 when the queue is canceled. * If this is 1, then you cannot queue buffers from a request. @@ -554,6 +556,7 @@ struct vb2_queue { unsigned allow_zero_bytesused:1; unsigned quirk_poll_must_check_waiting_for_buffers:1; unsigned supports_requests:1; + unsigned requires_requests:1; unsigned uses_qbuf:1; unsigned uses_requests:1;