From patchwork Fri Dec 23 19:38:05 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nicolas Dufresne X-Patchwork-Id: 13081091 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id CD258C3DA79 for ; Fri, 23 Dec 2022 19:39:00 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232661AbiLWTi7 (ORCPT ); Fri, 23 Dec 2022 14:38:59 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41878 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232676AbiLWTiy (ORCPT ); Fri, 23 Dec 2022 14:38:54 -0500 Received: from madras.collabora.co.uk (madras.collabora.co.uk [46.235.227.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 15DE421815; Fri, 23 Dec 2022 11:38:51 -0800 (PST) Received: from whitebuilder.lan (192-222-136-102.qc.cable.ebox.net [192.222.136.102]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) (Authenticated sender: nicolas) by madras.collabora.co.uk (Postfix) with ESMTPSA id C02906602CDF; Fri, 23 Dec 2022 19:38:48 +0000 (GMT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1671824329; bh=TUAr5G3EJwUIxmCfLgOCFNIvuOyhhl3yWtc6GNPry2I=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=lvcIaKKR/tt7H4Ib7/Uo1TNLUWO/jCNSbZeEk3Vxoh2bBTJl8KGOwpmtZAcWzHOkX jW3Y+vGfSvNWfEr0kBiqF4W34+dDF5PgjHg6zrECJY+toAXdQXUK8U+vWH59Jh5t4m pwNWuQ6GS7XdBo6TLwZYVlzRm5GyIcOpjQ3aYcBL9XgQ1UNq7ejSG9AILoyc3BsU+4 /JsdhbpP9xTC5b61WCfANZC7pu8T2c8ZRjOHFdpbGu4hGm7Y0RMD4u2bkveZlUpQAj 7Q41Nw1Lpy9XaG5cLF9G6wJ/5r3xfY2i/fofZkIn94/w3O8yI1JYBDkpfSIVqUfwZ8 EaVTmMHPYNn/w== From: Nicolas Dufresne To: Ezequiel Garcia , Mauro Carvalho Chehab , Greg Kroah-Hartman Cc: kernel@collabora.com, Nicolas Dufresne , linux-media@vger.kernel.org, linux-rockchip@lists.infradead.org, linux-staging@lists.linux.dev, linux-kernel@vger.kernel.org Subject: [PATCH v2 3/4] media: rkvdec: Re-enable H.264 error detection Date: Fri, 23 Dec 2022 14:38:05 -0500 Message-Id: <20221223193807.914935-4-nicolas.dufresne@collabora.com> X-Mailer: git-send-email 2.38.1 In-Reply-To: <20221223193807.914935-1-nicolas.dufresne@collabora.com> References: <20221223193807.914935-1-nicolas.dufresne@collabora.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org This re-enable H.264 error detection, but using the other error mode. In that mode, the decoder will skip over the error macro-block or slices and complete the decoding. As a side effect, the error status is not set in the interrupt status register, and instead errors are detected per format. Using this mode workaround the issue that the HW get stuck in error state, and allow reporting that some corruption may be present in the buffer to userland. Signed-off-by: Nicolas Dufresne Reviewed-by: Chen-Yu Tsai --- drivers/staging/media/rkvdec/rkvdec-h264.c | 23 +++++++++++++++++++--- 1 file changed, 20 insertions(+), 3 deletions(-) diff --git a/drivers/staging/media/rkvdec/rkvdec-h264.c b/drivers/staging/media/rkvdec/rkvdec-h264.c index 4fc167b42cf0c..dfe3e235f099a 100644 --- a/drivers/staging/media/rkvdec/rkvdec-h264.c +++ b/drivers/staging/media/rkvdec/rkvdec-h264.c @@ -1162,14 +1162,15 @@ static int rkvdec_h264_run(struct rkvdec_ctx *ctx) schedule_delayed_work(&rkvdec->watchdog_work, msecs_to_jiffies(2000)); - writel(0, rkvdec->regs + RKVDEC_REG_STRMD_ERR_EN); - writel(0, rkvdec->regs + RKVDEC_REG_H264_ERR_E); + writel(0xffffffff, rkvdec->regs + RKVDEC_REG_STRMD_ERR_EN); + writel(0xffffffff, rkvdec->regs + RKVDEC_REG_H264_ERR_E); writel(1, rkvdec->regs + RKVDEC_REG_PREF_LUMA_CACHE_COMMAND); writel(1, rkvdec->regs + RKVDEC_REG_PREF_CHR_CACHE_COMMAND); /* Start decoding! */ writel(RKVDEC_INTERRUPT_DEC_E | RKVDEC_CONFIG_DEC_CLK_GATE_E | - RKVDEC_TIMEOUT_E | RKVDEC_BUF_EMPTY_E, + RKVDEC_TIMEOUT_E | RKVDEC_BUF_EMPTY_E | + RKVDEC_H264ORVP9_ERR_MODE, rkvdec->regs + RKVDEC_REG_INTERRUPT); return 0; @@ -1183,10 +1184,26 @@ static int rkvdec_h264_try_ctrl(struct rkvdec_ctx *ctx, struct v4l2_ctrl *ctrl) return 0; } +static int rkvdec_h264_check_error_info(struct rkvdec_ctx *ctx) +{ + struct rkvdec_dev *rkvdec = ctx->dev; + int err; + + err = readl(rkvdec->regs + RKVDEC_REG_H264_ERRINFO_NUM); + if (err & RKVDEC_STRMD_DECT_ERR_FLAG) { + pr_debug("Decoded picture have %i/%i slices with errors.\n", + RKVDEC_ERR_PKT_NUM(err), RKVDEC_SLICEDEC_NUM(err)); + return VB2_BUF_STATE_ERROR; + } + + return VB2_BUF_STATE_DONE; +} + const struct rkvdec_coded_fmt_ops rkvdec_h264_fmt_ops = { .adjust_fmt = rkvdec_h264_adjust_fmt, .start = rkvdec_h264_start, .stop = rkvdec_h264_stop, .run = rkvdec_h264_run, .try_ctrl = rkvdec_h264_try_ctrl, + .check_error_info = rkvdec_h264_check_error_info, };