From patchwork Thu Nov 9 20:16:37 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Paul Kocialkowski X-Patchwork-Id: 743258 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 D14D5C4332F for ; Thu, 9 Nov 2023 20:16:54 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1344411AbjKIUQz (ORCPT ); Thu, 9 Nov 2023 15:16:55 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55180 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229613AbjKIUQy (ORCPT ); Thu, 9 Nov 2023 15:16:54 -0500 Received: from relay5-d.mail.gandi.net (relay5-d.mail.gandi.net [217.70.183.197]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 1FBD83AAC; Thu, 9 Nov 2023 12:16:51 -0800 (PST) Received: by mail.gandi.net (Postfix) with ESMTPSA id 0F1D21C0004; Thu, 9 Nov 2023 20:16:48 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=gm1; t=1699561010; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding; bh=qlw7B5/Bx/59SQf3CbtCdO7WmqSG7NYa1WOTVO0Qk80=; b=WgEq9pmqEnbuW6waH6m/ZSGL/NBzEuXlBpDxFBA2lGrCWWtOe/4nwymHgzG3MSGAZiSxlS J0ch5GA0xJRwfSm2GEJ4Hcy4TPCj9ZYmkExXAJYP/Zw6HmbvX64xuRhpUo80hriotvgVNk hhKX5A+o6QIGwuqX/WaPyLI+knh0Vnv+KVnOFA3471FomaQ71k+NrClfDNCRga5SYRH/CA xtZAp3SVnpGXsk5Y1SIaNqfagMAEn9nCrFiBbRUcp7WuOsp4i2v52aF4JeWJ6WE7quUx5I 1/8xWkx1HCfNbs9XY4ylpXB9sQWlEsLzOwckLPo9PTn4tgPvXv/uz2wm8gB6YQ== From: Paul Kocialkowski To: linux-media@vger.kernel.org, linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org, linux-staging@lists.linux.dev Cc: Ezequiel Garcia , Philipp Zabel , Mauro Carvalho Chehab , Hans Verkuil , Daniel Almeida , Greg Kroah-Hartman , Nicolas Dufresne , Sebastian Fricke , Thomas Petazzoni , Paul Kocialkowski Subject: [PATCH 1/4] media: vicodec: Disable (TRY_)DECODER_CMD for the stateless case Date: Thu, 9 Nov 2023 21:16:37 +0100 Message-ID: <20231109201640.340556-1-paul.kocialkowski@bootlin.com> X-Mailer: git-send-email 2.42.1 MIME-Version: 1.0 X-GND-Sasl: paul.kocialkowski@bootlin.com Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org The (TRY_)DECODER_CMD ioctls are only useful for stateful decoders and for stateless decoders that support holding capture buffers (which is not the case for this driver). Disable them when registering the stateless decoder. Signed-off-by: Paul Kocialkowski --- .../media/test-drivers/vicodec/vicodec-core.c | 19 +++++++++++++------ 1 file changed, 13 insertions(+), 6 deletions(-) diff --git a/drivers/media/test-drivers/vicodec/vicodec-core.c b/drivers/media/test-drivers/vicodec/vicodec-core.c index 6f0e20df74e9..8f7a2b153ee9 100644 --- a/drivers/media/test-drivers/vicodec/vicodec-core.c +++ b/drivers/media/test-drivers/vicodec/vicodec-core.c @@ -1240,6 +1240,12 @@ static int vicodec_decoder_cmd(struct file *file, void *fh, struct vicodec_ctx *ctx = file2ctx(file); int ret; + /* + * This ioctl should not be used with a stateless codec that doesn't + * support holding buffers and the associated flush command. + */ + WARN_ON(ctx->is_stateless); + ret = v4l2_m2m_ioctl_try_decoder_cmd(file, fh, dc); if (ret < 0) return ret; @@ -2025,7 +2031,7 @@ static const struct v4l2_m2m_ops m2m_ops = { static int register_instance(struct vicodec_dev *dev, struct vicodec_dev_instance *dev_instance, - const char *name, bool is_enc) + const char *name, bool is_enc, bool is_stateless) { struct video_device *vfd; int ret; @@ -2045,10 +2051,11 @@ static int register_instance(struct vicodec_dev *dev, strscpy(vfd->name, name, sizeof(vfd->name)); vfd->device_caps = V4L2_CAP_STREAMING | (multiplanar ? V4L2_CAP_VIDEO_M2M_MPLANE : V4L2_CAP_VIDEO_M2M); - if (is_enc) { + if (is_enc || is_stateless) { v4l2_disable_ioctl(vfd, VIDIOC_DECODER_CMD); v4l2_disable_ioctl(vfd, VIDIOC_TRY_DECODER_CMD); - } else { + } + if (!is_enc) { v4l2_disable_ioctl(vfd, VIDIOC_ENCODER_CMD); v4l2_disable_ioctl(vfd, VIDIOC_TRY_ENCODER_CMD); } @@ -2107,17 +2114,17 @@ static int vicodec_probe(struct platform_device *pdev) platform_set_drvdata(pdev, dev); ret = register_instance(dev, &dev->stateful_enc, "stateful-encoder", - true); + true, false); if (ret) goto unreg_dev; ret = register_instance(dev, &dev->stateful_dec, "stateful-decoder", - false); + false, false); if (ret) goto unreg_sf_enc; ret = register_instance(dev, &dev->stateless_dec, "stateless-decoder", - false); + false, true); if (ret) goto unreg_sf_dec;