From patchwork Sat Dec 8 08:39:15 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: =?utf-8?b?WW9uZyBXdSAo5ZC05YuHKQ==?= X-Patchwork-Id: 10719227 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 D85F91750 for ; Sat, 8 Dec 2018 08:41:07 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id C5C2D2CF9D for ; Sat, 8 Dec 2018 08:41:07 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id B819F2CF9F; Sat, 8 Dec 2018 08:41:07 +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=-5.2 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED,UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 5E2402CF9D for ; Sat, 8 Dec 2018 08:41:07 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=ApKBBC59eTg8d7zCRiuU96gSfMvCKe4mkKJuaTpNRj4=; b=gHC4rI4FAknrcN hdDzTeJDD2RfkXe5n4DfpE+7+ekG1UpC7qv/1IYakjp7XakQc42RrczRQZRjSqwLDoicK2OZQ7eiV Z3vZuGBd5XTF+Mo3IaIpD+blrHQMSMYCyaUHvauo4qvfl7pCxdivNdgmJnR6iuVnUUcf6aQIr8Cyr yOJYh5FZYI4/wO0NCzA+p+R6dNE+8wmnUnkGP7lIf/I7AcmCYfWNJmBpvwIAFYCpTMmJKMXi6Tn3d +nngmSUdrAP6oBF0y+DKKN+HLMQ24Vu5Q+VTUii/r/P14Y/Ts2iXYOsu2OnNBgvP22FlL+DIGSaLl HK8nNuxy34cH3tbTztww==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1gVYAc-0002i6-Bz; Sat, 08 Dec 2018 08:41:06 +0000 Received: from [210.61.82.184] (helo=mailgw02.mediatek.com) by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1gVYA7-00025s-Op; Sat, 08 Dec 2018 08:40:45 +0000 X-UUID: feecccca33b14616bc336eea98cb4d3e-20181208 X-UUID: feecccca33b14616bc336eea98cb4d3e-20181208 Received: from mtkcas09.mediatek.inc [(172.21.101.178)] by mailgw02.mediatek.com (envelope-from ) (mhqrelay.mediatek.com ESMTP with TLS) with ESMTP id 287601677; Sat, 08 Dec 2018 16:40:22 +0800 Received: from MTKCAS06.mediatek.inc (172.21.101.30) by mtkmbs03n1.mediatek.inc (172.21.101.181) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Sat, 8 Dec 2018 16:40:20 +0800 Received: from localhost.localdomain (10.17.3.153) by MTKCAS06.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1395.4 via Frontend Transport; Sat, 8 Dec 2018 16:40:19 +0800 From: Yong Wu To: Joerg Roedel , Matthias Brugger , Robin Murphy , Rob Herring Subject: [PATCH v4 02/18] iommu/mediatek: Use a struct as the platform data Date: Sat, 8 Dec 2018 16:39:15 +0800 Message-ID: <1544258371-4600-3-git-send-email-yong.wu@mediatek.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1544258371-4600-1-git-send-email-yong.wu@mediatek.com> References: <1544258371-4600-1-git-send-email-yong.wu@mediatek.com> MIME-Version: 1.0 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20181208_004036_703391_A62A42FF X-CRM114-Status: GOOD ( 14.35 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: youlin.pei@mediatek.com, devicetree@vger.kernel.org, Nicolas Boichat , arnd@arndb.de, srv_heupstream@mediatek.com, Will Deacon , linux-kernel@vger.kernel.org, Tomasz Figa , iommu@lists.linux-foundation.org, linux-mediatek@lists.infradead.org, yong.wu@mediatek.com, Arvind Yadav , yingjoe.chen@mediatek.com, linux-arm-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP Use a struct as the platform special data instead of the enumeration. This is a prepare patch for adding mt8183 iommu support. Signed-off-by: Yong Wu Reviewed-by: Matthias Brugger --- drivers/iommu/mtk_iommu.c | 24 ++++++++++++++++-------- drivers/iommu/mtk_iommu.h | 6 +++++- 2 files changed, 21 insertions(+), 9 deletions(-) diff --git a/drivers/iommu/mtk_iommu.c b/drivers/iommu/mtk_iommu.c index 44bd5b9..9a2225b 100644 --- a/drivers/iommu/mtk_iommu.c +++ b/drivers/iommu/mtk_iommu.c @@ -54,7 +54,7 @@ #define REG_MMU_CTRL_REG 0x110 #define F_MMU_PREFETCH_RT_REPLACE_MOD BIT(4) #define F_MMU_TF_PROTECT_SEL_SHIFT(data) \ - ((data)->m4u_plat == M4U_MT2712 ? 4 : 5) + ((data)->plat_data->m4u_plat == M4U_MT2712 ? 4 : 5) /* It's named by F_MMU_TF_PROT_SEL in mt2712. */ #define F_MMU_TF_PROTECT_SEL(prot, data) \ (((prot) & 0x3) << F_MMU_TF_PROTECT_SEL_SHIFT(data)) @@ -517,7 +517,7 @@ static int mtk_iommu_hw_init(const struct mtk_iommu_data *data) } regval = F_MMU_TF_PROTECT_SEL(2, data); - if (data->m4u_plat == M4U_MT8173) + if (data->plat_data->m4u_plat == M4U_MT8173) regval |= F_MMU_PREFETCH_RT_REPLACE_MOD; writel_relaxed(regval, data->base + REG_MMU_CTRL_REG); @@ -538,14 +538,14 @@ static int mtk_iommu_hw_init(const struct mtk_iommu_data *data) F_INT_PRETETCH_TRANSATION_FIFO_FAULT; writel_relaxed(regval, data->base + REG_MMU_INT_MAIN_CONTROL); - if (data->m4u_plat == M4U_MT8173) + if (data->plat_data->m4u_plat == M4U_MT8173) regval = (data->protect_base >> 1) | (data->enable_4GB << 31); else regval = lower_32_bits(data->protect_base) | upper_32_bits(data->protect_base); writel_relaxed(regval, data->base + REG_MMU_IVRP_PADDR); - if (data->enable_4GB && data->m4u_plat != M4U_MT8173) { + if (data->enable_4GB && data->plat_data->m4u_plat != M4U_MT8173) { /* * If 4GB mode is enabled, the validate PA range is from * 0x1_0000_0000 to 0x1_ffff_ffff. here record bit[32:30]. @@ -556,7 +556,7 @@ static int mtk_iommu_hw_init(const struct mtk_iommu_data *data) writel_relaxed(0, data->base + REG_MMU_DCM_DIS); /* It's MISC control register whose default value is ok except mt8173.*/ - if (data->m4u_plat == M4U_MT8173) + if (data->plat_data->m4u_plat == M4U_MT8173) writel_relaxed(0, data->base + REG_MMU_STANDARD_AXI_MODE); if (devm_request_irq(data->dev, data->irq, mtk_iommu_isr, 0, @@ -589,7 +589,7 @@ static int mtk_iommu_probe(struct platform_device *pdev) if (!data) return -ENOMEM; data->dev = dev; - data->m4u_plat = (enum mtk_iommu_plat)of_device_get_match_data(dev); + data->plat_data = of_device_get_match_data(dev); /* Protect memory. HW will access here while translation fault.*/ protect = devm_kzalloc(dev, MTK_PROTECT_PA_ALIGN * 2, GFP_KERNEL); @@ -733,9 +733,17 @@ static int __maybe_unused mtk_iommu_resume(struct device *dev) SET_NOIRQ_SYSTEM_SLEEP_PM_OPS(mtk_iommu_suspend, mtk_iommu_resume) }; +static const struct mtk_iommu_plat_data mt2712_data = { + .m4u_plat = M4U_MT2712, +}; + +static const struct mtk_iommu_plat_data mt8173_data = { + .m4u_plat = M4U_MT8173, +}; + static const struct of_device_id mtk_iommu_of_ids[] = { - { .compatible = "mediatek,mt2712-m4u", .data = (void *)M4U_MT2712}, - { .compatible = "mediatek,mt8173-m4u", .data = (void *)M4U_MT8173}, + { .compatible = "mediatek,mt2712-m4u", .data = &mt2712_data}, + { .compatible = "mediatek,mt8173-m4u", .data = &mt8173_data}, {} }; diff --git a/drivers/iommu/mtk_iommu.h b/drivers/iommu/mtk_iommu.h index 778498b..333a0ef 100644 --- a/drivers/iommu/mtk_iommu.h +++ b/drivers/iommu/mtk_iommu.h @@ -41,6 +41,10 @@ enum mtk_iommu_plat { M4U_MT8173, }; +struct mtk_iommu_plat_data { + enum mtk_iommu_plat m4u_plat; +}; + struct mtk_iommu_domain; struct mtk_iommu_data { @@ -57,7 +61,7 @@ struct mtk_iommu_data { bool tlb_flush_active; struct iommu_device iommu; - enum mtk_iommu_plat m4u_plat; + const struct mtk_iommu_plat_data *plat_data; struct list_head list; };