From patchwork Thu Apr 25 07:12:25 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Boris Brezillon X-Patchwork-Id: 10916103 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 7D50414DB for ; Thu, 25 Apr 2019 07:12:53 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 6364528B21 for ; Thu, 25 Apr 2019 07:12:53 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 5292028B20; Thu, 25 Apr 2019 07:12:53 +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 76A1828B21 for ; Thu, 25 Apr 2019 07:12:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2388554AbfDYHMv (ORCPT ); Thu, 25 Apr 2019 03:12:51 -0400 Received: from bhuna.collabora.co.uk ([46.235.227.227]:60366 "EHLO bhuna.collabora.co.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730078AbfDYHMu (ORCPT ); Thu, 25 Apr 2019 03:12:50 -0400 Received: from localhost.localdomain (unknown [IPv6:2a01:e0a:2c:6930:5cf4:84a1:2763:fe0d]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) (Authenticated sender: bbrezillon) by bhuna.collabora.co.uk (Postfix) with ESMTPSA id 12F9F282F41; Thu, 25 Apr 2019 08:12:48 +0100 (BST) From: Boris Brezillon To: Mauro Carvalho Chehab , Hans Verkuil , Laurent Pinchart , Sakari Ailus , linux-media@vger.kernel.org Cc: Tomasz Figa , Nicolas Dufresne , kernel@collabora.com, Paul Kocialkowski , Ezequiel Garcia , Jonas Karlman , linux-rockchip@lists.infradead.org, Heiko Stuebner , Boris Brezillon Subject: [PATCH v4 04/21] rockchip/vpu: Cleanup JPEG bounce buffer management Date: Thu, 25 Apr 2019 09:12:25 +0200 Message-Id: <20190425071242.18315-5-boris.brezillon@collabora.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190425071242.18315-1-boris.brezillon@collabora.com> References: <20190425071242.18315-1-boris.brezillon@collabora.com> MIME-Version: 1.0 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 From: Ezequiel Garcia In order to make the code more generic, introduce a pair of start/stop codec operations, and use them to allocate and release the JPEG bounce buffer. Signed-off-by: Ezequiel Garcia Signed-off-by: Boris Brezillon --- Changes from v3: * None Changes from v2: * Reword bounce buffer comment, so it's specific about JPEG. * Rename helpers, start/stop to init/exit. * Rename "jpeg_enc_ctx" to "jpeg_enc", since it's clear it's a member of a "_ctx" struct. --- .../media/rockchip/vpu/rk3288_vpu_hw.c | 2 ++ .../rockchip/vpu/rk3288_vpu_hw_jpeg_enc.c | 4 +-- .../media/rockchip/vpu/rk3399_vpu_hw.c | 2 ++ .../rockchip/vpu/rk3399_vpu_hw_jpeg_enc.c | 4 +-- .../staging/media/rockchip/vpu/rockchip_vpu.h | 12 ++++---- .../media/rockchip/vpu/rockchip_vpu_drv.c | 9 ++++-- .../media/rockchip/vpu/rockchip_vpu_enc.c | 23 +++++---------- .../media/rockchip/vpu/rockchip_vpu_hw.h | 28 ++++++++++++++++++ .../media/rockchip/vpu/rockchip_vpu_jpeg.c | 29 +++++++++++++++++++ 9 files changed, 84 insertions(+), 29 deletions(-) diff --git a/drivers/staging/media/rockchip/vpu/rk3288_vpu_hw.c b/drivers/staging/media/rockchip/vpu/rk3288_vpu_hw.c index a5e9d183fffd..a874a0d83c2d 100644 --- a/drivers/staging/media/rockchip/vpu/rk3288_vpu_hw.c +++ b/drivers/staging/media/rockchip/vpu/rk3288_vpu_hw.c @@ -98,6 +98,8 @@ static const struct rockchip_vpu_codec_ops rk3288_vpu_codec_ops[] = { [RK_VPU_MODE_JPEG_ENC] = { .run = rk3288_vpu_jpeg_enc_run, .reset = rk3288_vpu_enc_reset, + .init = rockchip_vpu_jpeg_enc_init, + .exit = rockchip_vpu_jpeg_enc_exit, }, }; diff --git a/drivers/staging/media/rockchip/vpu/rk3288_vpu_hw_jpeg_enc.c b/drivers/staging/media/rockchip/vpu/rk3288_vpu_hw_jpeg_enc.c index 06daea66fb49..791353ae01e7 100644 --- a/drivers/staging/media/rockchip/vpu/rk3288_vpu_hw_jpeg_enc.c +++ b/drivers/staging/media/rockchip/vpu/rk3288_vpu_hw_jpeg_enc.c @@ -37,9 +37,9 @@ static void rk3288_vpu_jpeg_enc_set_buffers(struct rockchip_vpu_dev *vpu, WARN_ON(pix_fmt->num_planes > 3); - vepu_write_relaxed(vpu, ctx->bounce_dma_addr, + vepu_write_relaxed(vpu, ctx->jpeg_enc.bounce_buffer.dma, VEPU_REG_ADDR_OUTPUT_STREAM); - vepu_write_relaxed(vpu, ctx->bounce_size, + vepu_write_relaxed(vpu, ctx->jpeg_enc.bounce_buffer.size, VEPU_REG_STR_BUF_LIMIT); if (pix_fmt->num_planes == 1) { diff --git a/drivers/staging/media/rockchip/vpu/rk3399_vpu_hw.c b/drivers/staging/media/rockchip/vpu/rk3399_vpu_hw.c index 6fdef61e2127..f4effad00605 100644 --- a/drivers/staging/media/rockchip/vpu/rk3399_vpu_hw.c +++ b/drivers/staging/media/rockchip/vpu/rk3399_vpu_hw.c @@ -98,6 +98,8 @@ static const struct rockchip_vpu_codec_ops rk3399_vpu_codec_ops[] = { [RK_VPU_MODE_JPEG_ENC] = { .run = rk3399_vpu_jpeg_enc_run, .reset = rk3399_vpu_enc_reset, + .init = rockchip_vpu_jpeg_enc_init, + .exit = rockchip_vpu_jpeg_enc_exit, }, }; diff --git a/drivers/staging/media/rockchip/vpu/rk3399_vpu_hw_jpeg_enc.c b/drivers/staging/media/rockchip/vpu/rk3399_vpu_hw_jpeg_enc.c index 3d438797692e..6f9f5158d193 100644 --- a/drivers/staging/media/rockchip/vpu/rk3399_vpu_hw_jpeg_enc.c +++ b/drivers/staging/media/rockchip/vpu/rk3399_vpu_hw_jpeg_enc.c @@ -69,9 +69,9 @@ static void rk3399_vpu_jpeg_enc_set_buffers(struct rockchip_vpu_dev *vpu, WARN_ON(pix_fmt->num_planes > 3); - vepu_write_relaxed(vpu, ctx->bounce_dma_addr, + vepu_write_relaxed(vpu, ctx->jpeg_enc.bounce_buffer.dma, VEPU_REG_ADDR_OUTPUT_STREAM); - vepu_write_relaxed(vpu, ctx->bounce_size, + vepu_write_relaxed(vpu, ctx->jpeg_enc.bounce_buffer.size, VEPU_REG_STR_BUF_LIMIT); if (pix_fmt->num_planes == 1) { diff --git a/drivers/staging/media/rockchip/vpu/rockchip_vpu.h b/drivers/staging/media/rockchip/vpu/rockchip_vpu.h index 1ec2be483e27..b15c02333a70 100644 --- a/drivers/staging/media/rockchip/vpu/rockchip_vpu.h +++ b/drivers/staging/media/rockchip/vpu/rockchip_vpu.h @@ -124,10 +124,7 @@ struct rockchip_vpu_dev { * @jpeg_quality: User-specified JPEG compression quality. * * @codec_ops: Set of operations related to codec mode. - * - * @bounce_dma_addr: Bounce buffer bus address. - * @bounce_buf: Bounce buffer pointer. - * @bounce_size: Bounce buffer size. + * @jpeg_enc: JPEG-encoding context. */ struct rockchip_vpu_ctx { struct rockchip_vpu_dev *dev; @@ -146,9 +143,10 @@ struct rockchip_vpu_ctx { const struct rockchip_vpu_codec_ops *codec_ops; - dma_addr_t bounce_dma_addr; - void *bounce_buf; - size_t bounce_size; + /* Specific for particular codec modes. */ + union { + struct rockchip_vpu_jpeg_enc_hw_ctx jpeg_enc; + }; }; /** diff --git a/drivers/staging/media/rockchip/vpu/rockchip_vpu_drv.c b/drivers/staging/media/rockchip/vpu/rockchip_vpu_drv.c index 3638aa1fd25d..39e911797189 100644 --- a/drivers/staging/media/rockchip/vpu/rockchip_vpu_drv.c +++ b/drivers/staging/media/rockchip/vpu/rockchip_vpu_drv.c @@ -63,10 +63,15 @@ static void rockchip_vpu_job_finish(struct rockchip_vpu_dev *vpu, avail_size = vb2_plane_size(&dst->vb2_buf, 0) - ctx->vpu_dst_fmt->header_size; if (bytesused <= avail_size) { - if (ctx->bounce_buf) { + /* + * The bounce buffer is only for the JPEG encoder. + * TODO: Rework the JPEG encoder to eliminate the need + * for a bounce buffer. + */ + if (ctx->jpeg_enc.bounce_buffer.cpu) { memcpy(vb2_plane_vaddr(&dst->vb2_buf, 0) + ctx->vpu_dst_fmt->header_size, - ctx->bounce_buf, bytesused); + ctx->jpeg_enc.bounce_buffer.cpu, bytesused); } dst->vb2_buf.planes[0].bytesused = ctx->vpu_dst_fmt->header_size + bytesused; diff --git a/drivers/staging/media/rockchip/vpu/rockchip_vpu_enc.c b/drivers/staging/media/rockchip/vpu/rockchip_vpu_enc.c index ae1ff3d9b9d2..0ace50746f2e 100644 --- a/drivers/staging/media/rockchip/vpu/rockchip_vpu_enc.c +++ b/drivers/staging/media/rockchip/vpu/rockchip_vpu_enc.c @@ -514,6 +514,7 @@ static int rockchip_vpu_start_streaming(struct vb2_queue *q, unsigned int count) { struct rockchip_vpu_ctx *ctx = vb2_get_drv_priv(q); enum rockchip_vpu_codec_mode codec_mode; + int ret = 0; if (V4L2_TYPE_IS_OUTPUT(q->type)) ctx->sequence_out = 0; @@ -526,17 +527,10 @@ static int rockchip_vpu_start_streaming(struct vb2_queue *q, unsigned int count) vpu_debug(4, "Codec mode = %d\n", codec_mode); ctx->codec_ops = &ctx->dev->variant->codec_ops[codec_mode]; - /* A bounce buffer is needed for the JPEG payload */ - if (!V4L2_TYPE_IS_OUTPUT(q->type)) { - ctx->bounce_size = ctx->dst_fmt.plane_fmt[0].sizeimage - - ctx->vpu_dst_fmt->header_size; - ctx->bounce_buf = dma_alloc_attrs(ctx->dev->dev, - ctx->bounce_size, - &ctx->bounce_dma_addr, - GFP_KERNEL, - DMA_ATTR_ALLOC_SINGLE_PAGES); - } - return 0; + if (!V4L2_TYPE_IS_OUTPUT(q->type)) + if (ctx->codec_ops && ctx->codec_ops->init) + ret = ctx->codec_ops->init(ctx); + return ret; } static void rockchip_vpu_stop_streaming(struct vb2_queue *q) @@ -544,11 +538,8 @@ static void rockchip_vpu_stop_streaming(struct vb2_queue *q) struct rockchip_vpu_ctx *ctx = vb2_get_drv_priv(q); if (!V4L2_TYPE_IS_OUTPUT(q->type)) - dma_free_attrs(ctx->dev->dev, - ctx->bounce_size, - ctx->bounce_buf, - ctx->bounce_dma_addr, - DMA_ATTR_ALLOC_SINGLE_PAGES); + if (ctx->codec_ops && ctx->codec_ops->exit) + ctx->codec_ops->exit(ctx); /* * The mem2mem framework calls v4l2_m2m_cancel_job before diff --git a/drivers/staging/media/rockchip/vpu/rockchip_vpu_hw.h b/drivers/staging/media/rockchip/vpu/rockchip_vpu_hw.h index 2b955da1be1a..46716d121538 100644 --- a/drivers/staging/media/rockchip/vpu/rockchip_vpu_hw.h +++ b/drivers/staging/media/rockchip/vpu/rockchip_vpu_hw.h @@ -18,9 +18,33 @@ struct rockchip_vpu_ctx; struct rockchip_vpu_buf; struct rockchip_vpu_variant; +/** + * struct rockchip_vpu_aux_buf - auxiliary DMA buffer for hardware data + * @cpu: CPU pointer to the buffer. + * @dma: DMA address of the buffer. + * @size: Size of the buffer. + */ +struct rockchip_vpu_aux_buf { + void *cpu; + dma_addr_t dma; + size_t size; +}; + +/** + * struct rockchip_vpu_jpeg_enc_hw_ctx + * @bounce_buffer: Bounce buffer + */ +struct rockchip_vpu_jpeg_enc_hw_ctx { + struct rockchip_vpu_aux_buf bounce_buffer; +}; + /** * struct rockchip_vpu_codec_ops - codec mode specific operations * + * @init: If needed, can be used for initialization. + * Optional and called from process context. + * @exit: If needed, can be used to undo the .init phase. + * Optional and called from process context. * @run: Start single {en,de)coding job. Called from atomic context * to indicate that a pair of buffers is ready and the hardware * should be programmed and started. @@ -28,6 +52,8 @@ struct rockchip_vpu_variant; * @reset: Reset the hardware in case of a timeout. */ struct rockchip_vpu_codec_ops { + int (*init)(struct rockchip_vpu_ctx *ctx); + void (*exit)(struct rockchip_vpu_ctx *ctx); void (*run)(struct rockchip_vpu_ctx *ctx); void (*done)(struct rockchip_vpu_ctx *ctx, enum vb2_buffer_state); void (*reset)(struct rockchip_vpu_ctx *ctx); @@ -54,5 +80,7 @@ void rockchip_vpu_irq_done(struct rockchip_vpu_dev *vpu, void rk3288_vpu_jpeg_enc_run(struct rockchip_vpu_ctx *ctx); void rk3399_vpu_jpeg_enc_run(struct rockchip_vpu_ctx *ctx); +int rockchip_vpu_jpeg_enc_init(struct rockchip_vpu_ctx *ctx); +void rockchip_vpu_jpeg_enc_exit(struct rockchip_vpu_ctx *ctx); #endif /* ROCKCHIP_VPU_HW_H_ */ diff --git a/drivers/staging/media/rockchip/vpu/rockchip_vpu_jpeg.c b/drivers/staging/media/rockchip/vpu/rockchip_vpu_jpeg.c index 0ff0badc1f7a..30b97d207dc5 100644 --- a/drivers/staging/media/rockchip/vpu/rockchip_vpu_jpeg.c +++ b/drivers/staging/media/rockchip/vpu/rockchip_vpu_jpeg.c @@ -6,9 +6,11 @@ * Copyright (C) Jean-Francois Moine (http://moinejf.free.fr) * Copyright (C) 2014 Philipp Zabel, Pengutronix */ +#include #include #include #include "rockchip_vpu_jpeg.h" +#include "rockchip_vpu.h" #define LUMA_QUANT_OFF 7 #define CHROMA_QUANT_OFF 72 @@ -288,3 +290,30 @@ void rockchip_vpu_jpeg_header_assemble(struct rockchip_vpu_jpeg_ctx *ctx) jpeg_set_quality(buf, ctx->quality); } + +int rockchip_vpu_jpeg_enc_init(struct rockchip_vpu_ctx *ctx) +{ + ctx->jpeg_enc.bounce_buffer.size = + ctx->dst_fmt.plane_fmt[0].sizeimage - + ctx->vpu_dst_fmt->header_size; + + ctx->jpeg_enc.bounce_buffer.cpu = + dma_alloc_attrs(ctx->dev->dev, + ctx->jpeg_enc.bounce_buffer.size, + &ctx->jpeg_enc.bounce_buffer.dma, + GFP_KERNEL, + DMA_ATTR_ALLOC_SINGLE_PAGES); + if (!ctx->jpeg_enc.bounce_buffer.cpu) + return -ENOMEM; + + return 0; +} + +void rockchip_vpu_jpeg_enc_exit(struct rockchip_vpu_ctx *ctx) +{ + dma_free_attrs(ctx->dev->dev, + ctx->jpeg_enc.bounce_buffer.size, + ctx->jpeg_enc.bounce_buffer.cpu, + ctx->jpeg_enc.bounce_buffer.dma, + DMA_ATTR_ALLOC_SINGLE_PAGES); +}