From patchwork Fri Aug 6 04:15:20 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tzung-Bi Shih X-Patchwork-Id: 12422649 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-26.3 required=3.0 tests=BAYES_00,DKIMWL_WL_MED, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_AGENT_GIT,USER_IN_DEF_DKIM_WL autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 13161C432BE for ; Fri, 6 Aug 2021 04:16:09 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id E084A60E97 for ; Fri, 6 Aug 2021 04:16:08 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S242717AbhHFEQX (ORCPT ); Fri, 6 Aug 2021 00:16:23 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:59990 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229836AbhHFEQW (ORCPT ); Fri, 6 Aug 2021 00:16:22 -0400 Received: from mail-qv1-xf4a.google.com (mail-qv1-xf4a.google.com [IPv6:2607:f8b0:4864:20::f4a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A59A9C061798 for ; Thu, 5 Aug 2021 21:16:07 -0700 (PDT) Received: by mail-qv1-xf4a.google.com with SMTP id cb3-20020ad456230000b02903319321d1e3so4081195qvb.14 for ; Thu, 05 Aug 2021 21:16:07 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=date:in-reply-to:message-id:mime-version:references:subject:from:to :cc; bh=eYcWw1nW7jHB277kKKn0ceDffDK/7XF/xGVoXBkrBY8=; b=OuMZS7D7lGu+ZVa6XXIrkUCUShUtisWb9l1JVhda/ltA6EVfVmw1PN0xr8Db7QReEy tZ8VyH/CmEteUbXgUKTJfoU0ZcfsLE4BEv0NlqsBCw7L2PCiZ2X7+gB9foXrICk/9jdC tRSVCjbnHCrT1SbzVh3lRG9VMpAVz94kQ7dRrISgmkCoyQTP52dZh40MuKnrfauMxlME AqK8loxaOcHwUN6PJlmIkS690dnTAuatvGLq4MOIMnIFynRrT6u4+SPzphInhpwe5xGD gLjxpqPuP+MP8LjUk176j1VZZQgb1SWReODw1wXuGzTPZLGH3p5DKo0wKqLRJVXFjrZg lSDQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:in-reply-to:message-id:mime-version :references:subject:from:to:cc; bh=eYcWw1nW7jHB277kKKn0ceDffDK/7XF/xGVoXBkrBY8=; b=G0YwiK/PCI0PtndZ5PZEgMX3/End6MMKEyBSUKUhUUmuKhVYNX6F2wVKsuQC2V6fBn 2gNHEP5W3Z+qDYyPvEImgu+0Has5Pd8qqvlKTCAzUMN1ztkbhyU+qjsGjONU9ekIDcdj 5JLmkUa0zwHevqooPLUvxOag5MCLbWm7SWSyUt0dNwLEMoWwAmE8GvbCw5Kx0JNon6d3 d81EakTyv7Ut8m6VrX81g6gnG1FNF2JzZGa6BafMufrB/YgQxcdwyOVk7054XAdrblcc qFrNjYFHlisTBgiMeAkGu1NYeoiqENeB4gFiNEAi3xKFAl6V47kxoHTkglssK+YKyt3f /mHA== X-Gm-Message-State: AOAM532ca0YHBS9NuZmXIHiu2QGla83QHwFzntq57gZp3YLBcaWWfC3T DOMC1JW9Jw9jSHDa2DxsVY0/QbhEWJL0 X-Google-Smtp-Source: ABdhPJxfnNpIju3kspgRlCFg2/ZYUG+rN2HaDKiEmN/sVCGSnId5BWf/0qeqzEb93duwcgVLP6vcxph4O0jv X-Received: from tzungbi-z840.tpe.corp.google.com ([2401:fa00:1:10:ebc2:859f:4153:773e]) (user=tzungbi job=sendgmr) by 2002:a05:6214:c6f:: with SMTP id t15mr9156602qvj.52.1628223366920; Thu, 05 Aug 2021 21:16:06 -0700 (PDT) Date: Fri, 6 Aug 2021 12:15:20 +0800 In-Reply-To: <20210806041530.4170869-1-tzungbi@google.com> Message-Id: <20210806041530.4170869-5-tzungbi@google.com> Mime-Version: 1.0 References: <20210806041530.4170869-1-tzungbi@google.com> X-Mailer: git-send-email 2.32.0.605.g8dce9f2422-goog Subject: [PATCH v7 04/14] media: mtk-vcodec: make flush buffer reusable by encoder From: Tzung-Bi Shih To: hverkuil-cisco@xs4all.nl, yunfei.dong@mediatek.com, acourbot@chromium.org Cc: tiffany.lin@mediatek.com, andrew-ct.chen@mediatek.com, dafna.hirschfeld@collabora.com, mchehab@kernel.org, linux-media@vger.kernel.org, linux-mediatek@lists.infradead.org, linux-arm-kernel@lists.infradead.org, tzungbi@google.com Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org From: Alexandre Courbot The flush buffer is a special buffer that tells the decoder driver to send an empty CAPTURE frame to the client with V4L2_BUF_FLAG_LAST set. We need similar functionality for the encoder ; however currently the flush buffer depends on decoder-specific structures and thus cannot be reused with the encoder. Fix this by testing for this buffer by its VB2 address, and not through a dedicated flag stored in a higher-level decoder structure. This also allows us to remove said flag and simplify the code a bit. Since the flush buffer should never be used in the stateless decoder, also add safeguards to check against it. Signed-off-by: Alexandre Courbot Reviewed-by: Tzung-Bi Shih Signed-off-by: Tzung-Bi Shih --- .../platform/mtk-vcodec/mtk_vcodec_dec.c | 24 +++++++++---------- .../platform/mtk-vcodec/mtk_vcodec_dec.h | 2 -- .../platform/mtk-vcodec/mtk_vcodec_dec_drv.c | 12 +--------- .../platform/mtk-vcodec/mtk_vcodec_drv.h | 6 +++-- 4 files changed, 16 insertions(+), 28 deletions(-) diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec.c b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec.c index 16e057f73789..7edd6266dc6a 100644 --- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec.c +++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec.c @@ -368,8 +368,6 @@ static void mtk_vdec_worker(struct work_struct *work) return; } - src_buf_info = container_of(src_buf, struct mtk_video_dec_buf, - m2m_buf.vb); dst_buf_info = container_of(dst_buf, struct mtk_video_dec_buf, m2m_buf.vb); @@ -390,7 +388,7 @@ static void mtk_vdec_worker(struct work_struct *work) pfb->base_y.va, &pfb->base_y.dma_addr, &pfb->base_c.dma_addr, pfb->base_y.size); - if (src_buf_info->lastframe) { + if (src_buf == &ctx->empty_flush_buf.vb) { mtk_v4l2_debug(1, "Got empty flush input buffer."); src_buf = v4l2_m2m_src_buf_remove(ctx->m2m_ctx); @@ -411,6 +409,10 @@ static void mtk_vdec_worker(struct work_struct *work) v4l2_m2m_job_finish(dev->m2m_dev_dec, ctx->m2m_ctx); return; } + + src_buf_info = container_of(src_buf, struct mtk_video_dec_buf, + m2m_buf.vb); + buf.va = vb2_plane_vaddr(&src_buf->vb2_buf, 0); buf.dma_addr = vb2_dma_contig_plane_dma_addr(&src_buf->vb2_buf, 0); buf.size = (size_t)src_buf->vb2_buf.planes[0].bytesused; @@ -514,8 +516,7 @@ static int vidioc_decoder_cmd(struct file *file, void *priv, mtk_v4l2_debug(1, "Capture stream is off. No need to flush."); return 0; } - v4l2_m2m_buf_queue(ctx->m2m_ctx, - &ctx->empty_flush_buf->m2m_buf.vb); + v4l2_m2m_buf_queue(ctx->m2m_ctx, &ctx->empty_flush_buf.vb); v4l2_m2m_try_schedule(ctx->m2m_ctx); break; @@ -1122,7 +1123,6 @@ static void vb2ops_vdec_buf_queue(struct vb2_buffer *vb) unsigned int dpbsize = 1, i = 0; struct mtk_vcodec_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue); struct vb2_v4l2_buffer *vb2_v4l2 = NULL; - struct mtk_video_dec_buf *buf = NULL; struct mtk_q_data *dst_q_data; mtk_v4l2_debug(3, "[%d] (%d) id=%d, vb=%p", @@ -1132,6 +1132,8 @@ static void vb2ops_vdec_buf_queue(struct vb2_buffer *vb) * check if this buffer is ready to be used after decode */ if (vb->vb2_queue->type != V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) { + struct mtk_video_dec_buf *buf; + vb2_v4l2 = to_vb2_v4l2_buffer(vb); buf = container_of(vb2_v4l2, struct mtk_video_dec_buf, m2m_buf.vb); @@ -1161,8 +1163,8 @@ static void vb2ops_vdec_buf_queue(struct vb2_buffer *vb) mtk_v4l2_err("No src buffer"); return; } - buf = container_of(src_buf, struct mtk_video_dec_buf, m2m_buf.vb); - if (buf->lastframe) { + + if (src_buf == &ctx->empty_flush_buf.vb) { /* This shouldn't happen. Just in case. */ mtk_v4l2_err("Invalid flush buffer."); v4l2_m2m_src_buf_remove(ctx->m2m_ctx); @@ -1267,8 +1269,6 @@ static int vb2ops_vdec_buf_init(struct vb2_buffer *vb) if (vb->vb2_queue->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) { buf->used = false; buf->queued_in_v4l2 = false; - } else { - buf->lastframe = false; } return 0; @@ -1294,9 +1294,7 @@ static void vb2ops_vdec_stop_streaming(struct vb2_queue *q) if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) { while ((src_buf = v4l2_m2m_src_buf_remove(ctx->m2m_ctx))) { - struct mtk_video_dec_buf *buf_info = container_of( - src_buf, struct mtk_video_dec_buf, m2m_buf.vb); - if (!buf_info->lastframe) + if (src_buf != &ctx->empty_flush_buf.vb) v4l2_m2m_buf_done(src_buf, VB2_BUF_STATE_ERROR); } diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec.h b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec.h index cf26b6c1486a..1f8b7300dce6 100644 --- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec.h +++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec.h @@ -40,7 +40,6 @@ struct vdec_fb { * @queued_in_vb2: Capture buffer is queue in vb2 * @queued_in_v4l2: Capture buffer is in v4l2 driver, but not in vb2 * queue yet - * @lastframe: Intput buffer is last buffer - EOS * @error: An unrecoverable error occurs on this buffer. * @frame_buffer: Decode status, and buffer information of Capture buffer * @@ -52,7 +51,6 @@ struct mtk_video_dec_buf { bool used; bool queued_in_vb2; bool queued_in_v4l2; - bool lastframe; bool error; struct vdec_fb frame_buffer; }; diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_drv.c b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_drv.c index f87dc47d9e63..5ce7f1b83e4e 100644 --- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_drv.c +++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_drv.c @@ -81,21 +81,14 @@ static int fops_vcodec_open(struct file *file) { struct mtk_vcodec_dev *dev = video_drvdata(file); struct mtk_vcodec_ctx *ctx = NULL; - struct mtk_video_dec_buf *mtk_buf = NULL; int ret = 0; struct vb2_queue *src_vq; ctx = kzalloc(sizeof(*ctx), GFP_KERNEL); if (!ctx) return -ENOMEM; - mtk_buf = kzalloc(sizeof(*mtk_buf), GFP_KERNEL); - if (!mtk_buf) { - kfree(ctx); - return -ENOMEM; - } mutex_lock(&dev->dev_mutex); - ctx->empty_flush_buf = mtk_buf; ctx->id = dev->id_counter++; v4l2_fh_init(&ctx->fh, video_devdata(file)); file->private_data = &ctx->fh; @@ -121,8 +114,7 @@ static int fops_vcodec_open(struct file *file) } src_vq = v4l2_m2m_get_vq(ctx->m2m_ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE); - ctx->empty_flush_buf->m2m_buf.vb.vb2_buf.vb2_queue = src_vq; - ctx->empty_flush_buf->lastframe = true; + ctx->empty_flush_buf.vb.vb2_buf.vb2_queue = src_vq; mtk_vcodec_dec_set_default_params(ctx); if (v4l2_fh_is_singular(&ctx->fh)) { @@ -162,7 +154,6 @@ static int fops_vcodec_open(struct file *file) err_ctrls_setup: v4l2_fh_del(&ctx->fh); v4l2_fh_exit(&ctx->fh); - kfree(ctx->empty_flush_buf); kfree(ctx); mutex_unlock(&dev->dev_mutex); @@ -193,7 +184,6 @@ static int fops_vcodec_release(struct file *file) v4l2_ctrl_handler_free(&ctx->ctrl_hdl); list_del_init(&ctx->list); - kfree(ctx->empty_flush_buf); kfree(ctx); mutex_unlock(&dev->dev_mutex); return 0; diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_drv.h b/drivers/media/platform/mtk-vcodec/mtk_vcodec_drv.h index c6c7672fecfb..cad52d8b1463 100644 --- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_drv.h +++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_drv.h @@ -13,6 +13,7 @@ #include #include #include +#include #include #include "mtk_vcodec_util.h" @@ -249,7 +250,8 @@ struct vdec_pic_info { * @decode_work: worker for the decoding * @encode_work: worker for the encoding * @last_decoded_picinfo: pic information get from latest decode - * @empty_flush_buf: a fake size-0 capture buffer that indicates flush + * @empty_flush_buf: a fake size-0 capture buffer that indicates flush. Only + * to be used with encoder and stateful decoder. * * @colorspace: enum v4l2_colorspace; supplemental to pixelformat * @ycbcr_enc: enum v4l2_ycbcr_encoding, Y'CbCr encoding @@ -288,7 +290,7 @@ struct mtk_vcodec_ctx { struct work_struct decode_work; struct work_struct encode_work; struct vdec_pic_info last_decoded_picinfo; - struct mtk_video_dec_buf *empty_flush_buf; + struct v4l2_m2m_buffer empty_flush_buf; enum v4l2_colorspace colorspace; enum v4l2_ycbcr_encoding ycbcr_enc;