From: Yong Wu <yong.wu@mediatek.com> To: Joerg Roedel <joro@8bytes.org>, Matthias Brugger <matthias.bgg@gmail.com>, Robin Murphy <robin.murphy@arm.com>, Will Deacon <will@kernel.org> Cc: youlin.pei@mediatek.com, devicetree@vger.kernel.org, Nicolas Boichat <drinkcat@chromium.org>, cui.zhang@mediatek.com, srv_heupstream@mediatek.com, chao.hao@mediatek.com, linux-kernel@vger.kernel.org, Evan Green <evgreen@chromium.org>, Tomasz Figa <tfiga@google.com>, iommu@lists.linux-foundation.org, Rob Herring <robh+dt@kernel.org>, linux-mediatek@lists.infradead.org, yong.wu@mediatek.com, ming-fan.chen@mediatek.com, anan.sun@mediatek.com, Matthias Kaehlcke <mka@chromium.org>, linux-arm-kernel@lists.infradead.org Subject: [PATCH v11 02/23] iommu/mediatek: Use a struct as the platform data Date: Sat, 24 Aug 2019 11:01:47 +0800 Message-ID: <1566615728-26388-3-git-send-email-yong.wu@mediatek.com> (raw) In-Reply-To: <1566615728-26388-1-git-send-email-yong.wu@mediatek.com> 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 <yong.wu@mediatek.com> Reviewed-by: Matthias Brugger <matthias.bgg@gmail.com> Reviewed-by: Evan Green <evgreen@chromium.org> --- 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 82e4be4..c6e6dc3 100644 --- a/drivers/iommu/mtk_iommu.c +++ b/drivers/iommu/mtk_iommu.c @@ -46,7 +46,7 @@ #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)) @@ -512,7 +512,7 @@ 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); @@ -533,14 +533,14 @@ 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]. @@ -551,7 +551,7 @@ 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, @@ -584,7 +584,7 @@ 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); @@ -732,9 +732,17 @@ 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 59337323..9725b08 100644 --- a/drivers/iommu/mtk_iommu.h +++ b/drivers/iommu/mtk_iommu.h @@ -32,6 +32,10 @@ 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 { @@ -48,7 +52,7 @@ 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; }; -- 1.9.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply index Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top 2019-08-24 3:01 [PATCH v11 00/23] MT8183 IOMMU SUPPORT Yong Wu 2019-08-24 3:01 ` [PATCH v11 01/23] dt-bindings: mediatek: Add binding for mt8183 IOMMU and SMI Yong Wu 2019-08-24 3:01 ` Yong Wu [this message] 2019-08-24 3:01 ` [PATCH v11 03/23] memory: mtk-smi: Use a general config_port interface Yong Wu 2019-08-24 3:01 ` [PATCH v11 04/23] memory: mtk-smi: Use a struct for the platform data for smi-common Yong Wu 2019-08-24 3:01 ` [PATCH v11 05/23] iommu/mediatek: Fix iova_to_phys PA start for 4GB mode Yong Wu 2019-08-24 3:01 ` [PATCH v11 06/23] iommu/io-pgtable-arm-v7s: Add paddr_to_iopte and iopte_to_paddr helpers Yong Wu 2019-08-24 3:01 ` [PATCH v11 07/23] iommu/io-pgtable-arm-v7s: Use ias/oas to check the valid iova/pa Yong Wu 2019-08-24 3:01 ` [PATCH v11 08/23] iommu/io-pgtable-arm-v7s: Rename the quirk from MTK_4GB to MTK_EXT Yong Wu 2019-08-24 3:01 ` [PATCH v11 09/23] iommu/io-pgtable-arm-v7s: Extend to support PA[33:32] for MediaTek Yong Wu 2019-08-24 3:01 ` [PATCH v11 10/23] iommu/mediatek: Adjust the PA for the 4GB Mode Yong Wu 2019-08-24 3:01 ` [PATCH v11 11/23] iommu/mediatek: Add bclk can be supported optionally Yong Wu 2019-08-24 3:01 ` [PATCH v11 12/23] iommu/mediatek: Add larb-id remapped support Yong Wu 2019-08-24 3:01 ` [PATCH v11 13/23] iommu/mediatek: Refine protect memory definition Yong Wu 2019-08-24 3:01 ` [PATCH v11 14/23] iommu/mediatek: Move reset_axi into plat_data Yong Wu 2019-08-24 3:02 ` [PATCH v11 15/23] iommu/mediatek: Move vld_pa_rng " Yong Wu 2019-08-24 3:02 ` [PATCH v11 16/23] memory: mtk-smi: Add gals support Yong Wu 2019-08-24 3:02 ` [PATCH v11 17/23] iommu/mediatek: Add mt8183 IOMMU support Yong Wu 2019-08-24 3:02 ` [PATCH v11 18/23] iommu/mediatek: Add mmu1 support Yong Wu 2019-08-24 3:02 ` [PATCH v11 19/23] memory: mtk-smi: Invoke pm runtime_callback to enable clocks Yong Wu 2019-08-24 3:02 ` [PATCH v11 20/23] memory: mtk-smi: Add bus_sel for mt8183 Yong Wu 2019-08-24 3:02 ` [PATCH v11 21/23] iommu/mediatek: Fix VLD_PA_RNG register backup when suspend Yong Wu 2019-08-24 3:02 ` [PATCH v11 22/23] memory: mtk-smi: Get rid of need_larbid Yong Wu 2019-08-24 3:02 ` [PATCH v11 23/23] iommu/mediatek: Clean up struct mtk_smi_iommu Yong Wu 2019-08-24 11:57 ` [PATCH v11 00/23] MT8183 IOMMU SUPPORT Will Deacon 2019-08-30 14:21 ` Joerg Roedel
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