From patchwork Wed Aug 18 09:18:41 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: =?utf-8?b?TmFuY3kgTGluICjmnpfmrKPonqIp?= X-Patchwork-Id: 12443701 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=-16.7 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,UNPARSEABLE_RELAY,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 857B1C432BE for ; Wed, 18 Aug 2021 09:20:07 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 5605E60F39 for ; Wed, 18 Aug 2021 09:20:07 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 5605E60F39 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=mediatek.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 90A646E4EC; Wed, 18 Aug 2021 09:19:45 +0000 (UTC) Received: from mailgw02.mediatek.com (unknown [210.61.82.184]) by gabe.freedesktop.org (Postfix) with ESMTPS id 86C4B6E4EA for ; Wed, 18 Aug 2021 09:18:56 +0000 (UTC) X-UUID: 870caf441bf2416b83b34bc94b78d3c6-20210818 X-UUID: 870caf441bf2416b83b34bc94b78d3c6-20210818 Received: from mtkmbs10n1.mediatek.inc [(172.21.101.34)] by mailgw02.mediatek.com (envelope-from ) (Generic MTA with TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384 256/256) with ESMTP id 288069751; Wed, 18 Aug 2021 17:18:52 +0800 Received: from MTKCAS06.mediatek.inc (172.21.101.30) by mtkmbs07n2.mediatek.inc (172.21.101.141) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Wed, 18 Aug 2021 17:18:50 +0800 Received: from mtksdccf07.mediatek.inc (172.21.84.99) by MTKCAS06.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Wed, 18 Aug 2021 17:18:50 +0800 From: Nancy.Lin To: CK Hu CC: Chun-Kuang Hu , Philipp Zabel , David Airlie , Daniel Vetter , Rob Herring , Matthias Brugger , "jason-jh . lin" , "Nancy . Lin" , Yongqiang Niu , , , , , , , Subject: [PATCH v3 09/15] soc: mediatek: add cmdq support of mtk-mmsys config API for mt8195 vdosys1 Date: Wed, 18 Aug 2021 17:18:41 +0800 Message-ID: <20210818091847.8060-10-nancy.lin@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20210818091847.8060-1-nancy.lin@mediatek.com> References: <20210818091847.8060-1-nancy.lin@mediatek.com> MIME-Version: 1.0 X-MTK: N X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Add cmdq support for mtk-mmsys config API. The mmsys config register settings need to take effect with the other HW settings(like OVL_ADAPTOR...) at the same vblanking time. If we use CPU to write the mmsys reg, we can't guarantee all the settings can be written in the same vblanking time. Cmdq is used for this purpose. We prepare all the related HW settings in one cmdq packet. The first command in the packet is "wait stream done", and then following with all the HW settings. After the cmdq packet is flush to GCE HW. The GCE waits for the "stream done event" to coming and then starts flushing all the HW settings. This can guarantee all the settings flush in the same vblanking. Signed-off-by: Nancy.Lin --- drivers/soc/mediatek/mtk-mmsys.c | 28 +++++++++++++++++++++----- include/linux/soc/mediatek/mtk-mmsys.h | 6 +++++- 2 files changed, 28 insertions(+), 6 deletions(-) diff --git a/drivers/soc/mediatek/mtk-mmsys.c b/drivers/soc/mediatek/mtk-mmsys.c index cd59a4157731..e2bcd701ceb0 100644 --- a/drivers/soc/mediatek/mtk-mmsys.c +++ b/drivers/soc/mediatek/mtk-mmsys.c @@ -77,6 +77,7 @@ static const struct mtk_mmsys_driver_data mt8195_vdosys1_driver_data = { struct mtk_mmsys { void __iomem *regs; const struct mtk_mmsys_driver_data *data; + struct cmdq_client_reg cmdq_base; }; void mtk_mmsys_ddp_connect(struct device *dev, @@ -117,7 +118,7 @@ void mtk_mmsys_ddp_disconnect(struct device *dev, EXPORT_SYMBOL_GPL(mtk_mmsys_ddp_disconnect); void mtk_mmsys_ddp_config(struct device *dev, enum mtk_mmsys_config_type config, - u32 id, u32 val) + u32 id, u32 val, struct cmdq_pkt *cmdq_pkt) { struct mtk_mmsys *mmsys = dev_get_drvdata(dev); const struct mtk_mmsys_config *mmsys_config = mmsys->data->config; @@ -140,10 +141,20 @@ void mtk_mmsys_ddp_config(struct device *dev, enum mtk_mmsys_config_type config, mask = mmsys_config[i].mask; reg_val = val << mmsys_config[i].shift; - u32 tmp = readl(mmsys->regs + offset); - - tmp = (tmp & ~mask) | reg_val; - writel(tmp, mmsys->regs + offset); +#if IS_REACHABLE(CONFIG_MTK_CMDQ) + if (cmdq_pkt && mmsys->cmdq_base.size) { + cmdq_pkt_write_mask(cmdq_pkt, mmsys->cmdq_base.subsys, + mmsys->cmdq_base.offset + offset, reg_val, + mask); + } else { +#endif + u32 tmp = readl(mmsys->regs + offset); + + tmp = (tmp & ~mask) | reg_val; + writel(tmp, mmsys->regs + offset); +#if IS_REACHABLE(CONFIG_MTK_CMDQ) + } +#endif } EXPORT_SYMBOL_GPL(mtk_mmsys_ddp_config); @@ -167,6 +178,13 @@ static int mtk_mmsys_probe(struct platform_device *pdev) } mmsys->data = of_device_get_match_data(&pdev->dev); + +#if IS_REACHABLE(CONFIG_MTK_CMDQ) + ret = cmdq_dev_get_client_reg(dev, &mmsys->cmdq_base, 0); + if (ret) + dev_dbg(dev, "No mediatek,gce-client-reg!\n"); +#endif + platform_set_drvdata(pdev, mmsys); clks = platform_device_register_data(&pdev->dev, mmsys->data->clk_driver, diff --git a/include/linux/soc/mediatek/mtk-mmsys.h b/include/linux/soc/mediatek/mtk-mmsys.h index ef2a6d9a834b..9705d242849a 100644 --- a/include/linux/soc/mediatek/mtk-mmsys.h +++ b/include/linux/soc/mediatek/mtk-mmsys.h @@ -6,6 +6,10 @@ #ifndef __MTK_MMSYS_H #define __MTK_MMSYS_H +#include +#include +#include + enum mtk_ddp_comp_id; struct device; @@ -75,6 +79,6 @@ void mtk_mmsys_ddp_disconnect(struct device *dev, enum mtk_ddp_comp_id next); void mtk_mmsys_ddp_config(struct device *dev, enum mtk_mmsys_config_type config, - u32 id, u32 val); + u32 id, u32 val, struct cmdq_pkt *cmdq_pkt); #endif /* __MTK_MMSYS_H */