From patchwork Tue Aug 28 10:53:54 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Philipp Zabel X-Patchwork-Id: 1380631 Return-Path: X-Original-To: patchwork-linux-media@patchwork.kernel.org Delivered-To: patchwork-process-083081@patchwork2.kernel.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by patchwork2.kernel.org (Postfix) with ESMTP id 4A72BDF283 for ; Tue, 28 Aug 2012 10:54:29 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752407Ab2H1Ky0 (ORCPT ); Tue, 28 Aug 2012 06:54:26 -0400 Received: from metis.ext.pengutronix.de ([92.198.50.35]:48381 "EHLO metis.ext.pengutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751269Ab2H1KyM (ORCPT ); Tue, 28 Aug 2012 06:54:12 -0400 Received: from dude.hi.pengutronix.de ([10.1.0.7] helo=dude.pengutronix.de) by metis.ext.pengutronix.de with esmtp (Exim 4.72) (envelope-from ) id 1T6JQt-0003Df-MU; Tue, 28 Aug 2012 12:54:07 +0200 From: Philipp Zabel To: linux-media@vger.kernel.org Cc: Javier Martin , Mauro Carvalho Chehab , Richard Zhao , Laurent Pinchart , Sylwester Nawrocki , Kyungmin Park , Hans Verkuil , kernel@pengutronix.de, Philipp Zabel Subject: [PATCH v2 07/14] media: coda: stop all queues in case of lockup Date: Tue, 28 Aug 2012 12:53:54 +0200 Message-Id: <1346151241-10449-8-git-send-email-p.zabel@pengutronix.de> X-Mailer: git-send-email 1.7.10.4 In-Reply-To: <1346151241-10449-1-git-send-email-p.zabel@pengutronix.de> References: <1346151241-10449-1-git-send-email-p.zabel@pengutronix.de> X-SA-Exim-Connect-IP: 10.1.0.7 X-SA-Exim-Mail-From: p.zabel@pengutronix.de X-SA-Exim-Scanned: No (on metis.ext.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-media@vger.kernel.org Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org Add a 1 second timeout for each PIC_RUN command to the CODA. In case it locks up, stop all queues and dequeue remaining buffers. Signed-off-by: Philipp Zabel --- drivers/media/video/coda.c | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) diff --git a/drivers/media/video/coda.c b/drivers/media/video/coda.c index aea8d17..a67a52a 100644 --- a/drivers/media/video/coda.c +++ b/drivers/media/video/coda.c @@ -137,6 +137,7 @@ struct coda_dev { struct vb2_alloc_ctx *alloc_ctx; struct list_head instances; unsigned long instance_mask; + struct delayed_work timeout; }; struct coda_params { @@ -723,6 +724,9 @@ static void coda_device_run(void *m2m_priv) CODA7_REG_BIT_AXI_SRAM_USE); } + /* 1 second timeout in case CODA locks up */ + schedule_delayed_work(&dev->timeout, HZ); + coda_command_async(ctx, CODA_COMMAND_PIC_RUN); } @@ -1493,6 +1497,8 @@ static irqreturn_t coda_irq_handler(int irq, void *data) u32 wr_ptr, start_ptr; struct coda_ctx *ctx; + __cancel_delayed_work(&dev->timeout); + /* read status register to attend the IRQ */ coda_read(dev, CODA_REG_BIT_INT_STATUS); coda_write(dev, CODA_REG_BIT_INT_CLEAR_SET, @@ -1565,6 +1571,20 @@ static irqreturn_t coda_irq_handler(int irq, void *data) return IRQ_HANDLED; } +void coda_timeout(struct work_struct *work) +{ + struct coda_ctx *ctx; + struct coda_dev *dev = container_of(to_delayed_work(work), + struct coda_dev, timeout); + + v4l2_err(&dev->v4l2_dev, "CODA PIC_RUN timeout, stopping all streams\n"); + + list_for_each_entry(ctx, &dev->instances, list) { + v4l2_m2m_streamoff(NULL, ctx->m2m_ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT); + v4l2_m2m_streamoff(NULL, ctx->m2m_ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE); + } +} + static u32 coda_supported_firmwares[] = { CODA_FIRMWARE_VERNUM(CODA_DX6, 2, 2, 5), CODA_FIRMWARE_VERNUM(CODA_7541, 13, 4, 29), @@ -1836,6 +1856,7 @@ static int __devinit coda_probe(struct platform_device *pdev) spin_lock_init(&dev->irqlock); INIT_LIST_HEAD(&dev->instances); + INIT_DELAYED_WORK(&dev->timeout, coda_timeout); dev->plat_dev = pdev; dev->clk_per = devm_clk_get(&pdev->dev, "per");