From patchwork Fri Feb 26 10:01:46 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alexandre Courbot X-Patchwork-Id: 387942 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=-18.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, 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 autolearn=unavailable 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 56459C433E0 for ; Fri, 26 Feb 2021 10:07:07 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 07CBE64F1F for ; Fri, 26 Feb 2021 10:07:06 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230502AbhBZKGs (ORCPT ); Fri, 26 Feb 2021 05:06:48 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:50870 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230121AbhBZKEt (ORCPT ); Fri, 26 Feb 2021 05:04:49 -0500 Received: from mail-pf1-x430.google.com (mail-pf1-x430.google.com [IPv6:2607:f8b0:4864:20::430]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5B607C0611BC for ; Fri, 26 Feb 2021 02:02:38 -0800 (PST) Received: by mail-pf1-x430.google.com with SMTP id r5so5909136pfh.13 for ; Fri, 26 Feb 2021 02:02:38 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=nfYIINXoKZUoitqaaBfvTmVbHkP8UmypLFrLruTJwl0=; b=A3edotnD4wiiz+AsyY9fcfd6EDVo3xsfqJozydADAsJk5rVh7NRDVXrgmUqy8jVh4f Gg/x7MGB7gqy50TasbmsOye0g1pWmkaBGzuXiqf978n/V9Y26vZ9h8JoSyKJAKhVbGFm oGuGbqbk+4TJNYfM/g4KJAQcQMT7AALvC4Aas= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=nfYIINXoKZUoitqaaBfvTmVbHkP8UmypLFrLruTJwl0=; b=DqtOqfDyoA2WUa+x0P+8HztGJMtdmKtoDypDMUv1NlEbN5HECv0ll0Ui15ITnJjIEG tJkwsqRbn8mMXqK45d3f9naAMrw8IzpoHGCXHhclck8VTlGK5GrWoTc9gRjwopbdLrGW 1Jc+/UZQN8UYBQ7nNuJfTGC96ziCyw8HeQumo2e1bBwaVUxfGtxu7YzInSc9eAn0kAbv c6eA16xeeRANxawrEgzpegIzPrpoL04ibKOLVJAcUG29UDanKGFAxjodn/r6T9q8gypk zG1+Yc3DWI9pfvBz14DNIaA+Ty803CbAOCLlPBiSVgMxvcG4xaFei0vWu7C84iEajZnv rNYQ== X-Gm-Message-State: AOAM530QfJG6aMfJMRp88bdHkLmJRdjGFNd1UBCTsMTi2WUsMbl987M1 qqh3sZ1pmCbGwIN6ZJ7p5hRb9A== X-Google-Smtp-Source: ABdhPJxVhua7C9+wleBKGRNjyjfreahVMKvs8KG6N6ecXUlQh863hvOcLxoqSBcoG55l9muJ20Rl2g== X-Received: by 2002:a65:6205:: with SMTP id d5mr2259264pgv.40.1614333757887; Fri, 26 Feb 2021 02:02:37 -0800 (PST) Received: from acourbot.tok.corp.google.com ([2401:fa00:8f:203:5c91:233c:dd5b:b1b0]) by smtp.gmail.com with ESMTPSA id o23sm9201565pfp.89.2021.02.26.02.02.35 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 26 Feb 2021 02:02:37 -0800 (PST) From: Alexandre Courbot To: Tiffany Lin , Andrew-CT Chen , Rob Herring , Yunfei Dong Cc: Mauro Carvalho Chehab , Hans Verkuil , linux-media@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mediatek@lists.infradead.org, Alexandre Courbot Subject: [PATCH v3 13/15] media: mtk-vcodec: make flush buffer reusable by encoder Date: Fri, 26 Feb 2021 19:01:46 +0900 Message-Id: <20210226100148.1663389-14-acourbot@chromium.org> X-Mailer: git-send-email 2.30.1.766.gb4fecdf3b7-goog In-Reply-To: <20210226100148.1663389-1-acourbot@chromium.org> References: <20210226100148.1663389-1-acourbot@chromium.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org 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 --- .../media/platform/mtk-vcodec/mtk_vcodec_dec.c | 9 ++------- .../media/platform/mtk-vcodec/mtk_vcodec_dec.h | 2 -- .../platform/mtk-vcodec/mtk_vcodec_dec_drv.c | 12 +----------- .../platform/mtk-vcodec/mtk_vcodec_dec_stateful.c | 15 +++++++++------ .../media/platform/mtk-vcodec/mtk_vcodec_drv.h | 6 ++++-- 5 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 209ccf3d2d67..1c86130bb52d 100644 --- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec.c +++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec.c @@ -86,8 +86,7 @@ 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; @@ -779,8 +778,6 @@ 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; @@ -807,9 +804,7 @@ 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) { struct media_request *req = src_buf->vb2_buf.req_obj.req; v4l2_m2m_buf_done(src_buf, diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec.h b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec.h index a2949e1bc7fe..a510e74251e6 100644 --- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec.h +++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec.h @@ -42,7 +42,6 @@ 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 * @bs_buffer: Output buffer info @@ -55,7 +54,6 @@ struct mtk_video_dec_buf { bool used; bool queued_in_vb2; bool queued_in_v4l2; - bool lastframe; bool error; 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 e0526c0900c8..4789e669c258 100644 --- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_drv.c +++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_drv.c @@ -82,21 +82,14 @@ 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; @@ -122,8 +115,7 @@ 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)) { @@ -161,7 +153,6 @@ 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); @@ -192,7 +183,6 @@ 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_dec_stateful.c b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_stateful.c index 3666c7e73bff..8d4ec8c7728b 100644 --- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_stateful.c +++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_stateful.c @@ -337,8 +337,6 @@ 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); @@ -359,7 +357,7 @@ 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); @@ -380,6 +378,10 @@ 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; @@ -459,7 +461,6 @@ static void vb2ops_vdec_stateful_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", @@ -469,6 +470,8 @@ static void vb2ops_vdec_stateful_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); @@ -498,8 +501,8 @@ static void vb2ops_vdec_stateful_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); diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_drv.h b/drivers/media/platform/mtk-vcodec/mtk_vcodec_drv.h index 79d6a1e6c916..8dab9f520283 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" @@ -250,7 +251,8 @@ 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. * @current_codec: current set input codec, in V4L2 pixel format * * @colorspace: enum v4l2_colorspace; supplemental to pixelformat @@ -289,7 +291,7 @@ 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; u32 current_codec;