From patchwork Wed Oct 9 22:27:33 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Niklas_S=C3=B6derlund?= X-Patchwork-Id: 11182303 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id B27A91668 for ; Wed, 9 Oct 2019 22:27:44 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 9BB2A218AC for ; Wed, 9 Oct 2019 22:27:44 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732340AbfJIW1o (ORCPT ); Wed, 9 Oct 2019 18:27:44 -0400 Received: from bin-mail-out-06.binero.net ([195.74.38.229]:41157 "EHLO bin-mail-out-06.binero.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1732332AbfJIW1n (ORCPT ); Wed, 9 Oct 2019 18:27:43 -0400 X-Halon-ID: dac2dcef-eae3-11e9-837a-0050569116f7 Authorized-sender: niklas@soderlund.pp.se Received: from bismarck.berto.se (unknown [84.172.88.101]) by bin-vsp-out-03.atm.binero.net (Halon) with ESMTPA id dac2dcef-eae3-11e9-837a-0050569116f7; Thu, 10 Oct 2019 00:26:36 +0200 (CEST) From: =?utf-8?q?Niklas_S=C3=B6derlund?= To: Laurent Pinchart , linux-media@vger.kernel.org Cc: linux-renesas-soc@vger.kernel.org, =?utf-8?q?Niklas_S=C3=B6derlund?= Subject: [PATCH v2 1/2] rcar-vin: Move hardware buffer tracking to own struct Date: Thu, 10 Oct 2019 00:27:33 +0200 Message-Id: <20191009222734.1911060-2-niklas.soderlund+renesas@ragnatech.se> X-Mailer: git-send-email 2.23.0 In-Reply-To: <20191009222734.1911060-1-niklas.soderlund+renesas@ragnatech.se> References: <20191009222734.1911060-1-niklas.soderlund+renesas@ragnatech.se> MIME-Version: 1.0 Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org To support SEQ_TB/BT not all buffers given to the hardware will be equal, the driver needs to keep track of different buffer types. Move the tracking of buffers given to hardware into a struct so additional tracking fields can be associated with each buffer. Signed-off-by: Niklas Söderlund --- drivers/media/platform/rcar-vin/rcar-dma.c | 27 +++++++++++----------- drivers/media/platform/rcar-vin/rcar-vin.h | 9 ++++---- 2 files changed, 19 insertions(+), 17 deletions(-) diff --git a/drivers/media/platform/rcar-vin/rcar-dma.c b/drivers/media/platform/rcar-vin/rcar-dma.c index af4f774149f08597..a9fffadc268e96ba 100644 --- a/drivers/media/platform/rcar-vin/rcar-dma.c +++ b/drivers/media/platform/rcar-vin/rcar-dma.c @@ -841,20 +841,20 @@ static void rvin_fill_hw_slot(struct rvin_dev *vin, int slot) dma_addr_t phys_addr; /* A already populated slot shall never be overwritten. */ - if (WARN_ON(vin->queue_buf[slot] != NULL)) + if (WARN_ON(vin->buf_hw[slot].buffer != NULL)) return; vin_dbg(vin, "Filling HW slot: %d\n", slot); if (list_empty(&vin->buf_list)) { - vin->queue_buf[slot] = NULL; + vin->buf_hw[slot].buffer = NULL; phys_addr = vin->scratch_phys; } else { /* Keep track of buffer we give to HW */ buf = list_entry(vin->buf_list.next, struct rvin_buffer, list); vbuf = &buf->vb; list_del_init(to_buf_list(vbuf)); - vin->queue_buf[slot] = vbuf; + vin->buf_hw[slot].buffer = vbuf; /* Setup DMA */ phys_addr = vb2_dma_contig_plane_dma_addr(&vbuf->vb2_buf, 0); @@ -950,13 +950,14 @@ static irqreturn_t rvin_irq(int irq, void *data) } /* Capture frame */ - if (vin->queue_buf[slot]) { - vin->queue_buf[slot]->field = rvin_get_active_field(vin, vnms); - vin->queue_buf[slot]->sequence = vin->sequence; - vin->queue_buf[slot]->vb2_buf.timestamp = ktime_get_ns(); - vb2_buffer_done(&vin->queue_buf[slot]->vb2_buf, + if (vin->buf_hw[slot].buffer) { + vin->buf_hw[slot].buffer->field = + rvin_get_active_field(vin, vnms); + vin->buf_hw[slot].buffer->sequence = vin->sequence; + vin->buf_hw[slot].buffer->vb2_buf.timestamp = ktime_get_ns(); + vb2_buffer_done(&vin->buf_hw[slot].buffer->vb2_buf, VB2_BUF_STATE_DONE); - vin->queue_buf[slot] = NULL; + vin->buf_hw[slot].buffer = NULL; } else { /* Scratch buffer was used, dropping frame. */ vin_dbg(vin, "Dropping frame %u\n", vin->sequence); @@ -980,10 +981,10 @@ static void return_all_buffers(struct rvin_dev *vin, int i; for (i = 0; i < HW_BUFFER_NUM; i++) { - if (vin->queue_buf[i]) { - vb2_buffer_done(&vin->queue_buf[i]->vb2_buf, + if (vin->buf_hw[i].buffer) { + vb2_buffer_done(&vin->buf_hw[i].buffer->vb2_buf, state); - vin->queue_buf[i] = NULL; + vin->buf_hw[i].buffer = NULL; } } @@ -1288,7 +1289,7 @@ int rvin_dma_register(struct rvin_dev *vin, int irq) vin->state = STOPPED; for (i = 0; i < HW_BUFFER_NUM; i++) - vin->queue_buf[i] = NULL; + vin->buf_hw[i].buffer = NULL; /* buffer queue */ q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; diff --git a/drivers/media/platform/rcar-vin/rcar-vin.h b/drivers/media/platform/rcar-vin/rcar-vin.h index 86e9bad44484092c..9031fe7f569b908e 100644 --- a/drivers/media/platform/rcar-vin/rcar-vin.h +++ b/drivers/media/platform/rcar-vin/rcar-vin.h @@ -162,9 +162,8 @@ struct rvin_info { * @scratch: cpu address for scratch buffer * @scratch_phys: physical address of the scratch buffer * - * @qlock: protects @queue_buf, @buf_list, @sequence - * @state - * @queue_buf: Keeps track of buffers given to HW slot + * @qlock: protects @buf_hw, @buf_list, @sequence and @state + * @buf_hw: Keeps track of buffers given to HW slot * @buf_list: list of queued buffers * @sequence: V4L2 buffers sequence number * @state: keeps track of operation state @@ -203,7 +202,9 @@ struct rvin_dev { dma_addr_t scratch_phys; spinlock_t qlock; - struct vb2_v4l2_buffer *queue_buf[HW_BUFFER_NUM]; + struct { + struct vb2_v4l2_buffer *buffer; + } buf_hw[HW_BUFFER_NUM]; struct list_head buf_list; unsigned int sequence; enum rvin_dma_state state;