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Roedel , Robin Murphy , Rob Herring References: <1560169080-27134-1-git-send-email-yong.wu@mediatek.com> <1560169080-27134-10-git-send-email-yong.wu@mediatek.com> From: Matthias Brugger Openpgp: preference=signencrypt Autocrypt: addr=matthias.bgg@gmail.com; prefer-encrypt=mutual; keydata= mQINBFP1zgUBEAC21D6hk7//0kOmsUrE3eZ55kjc9DmFPKIz6l4NggqwQjBNRHIMh04BbCMY fL3eT7ZsYV5nur7zctmJ+vbszoOASXUpfq8M+S5hU2w7sBaVk5rpH9yW8CUWz2+ZpQXPJcFa OhLZuSKB1F5JcvLbETRjNzNU7B3TdS2+zkgQQdEyt7Ij2HXGLJ2w+yG2GuR9/iyCJRf10Okq gTh//XESJZ8S6KlOWbLXRE+yfkKDXQx2Jr1XuVvM3zPqH5FMg8reRVFsQ+vI0b+OlyekT/Xe 0Hwvqkev95GG6x7yseJwI+2ydDH6M5O7fPKFW5mzAdDE2g/K9B4e2tYK6/rA7Fq4cqiAw1+u EgO44+eFgv082xtBez5WNkGn18vtw0LW3ESmKh19u6kEGoi0WZwslCNaGFrS4M7OH+aOJeqK fx5dIv2CEbxc6xnHY7dwkcHikTA4QdbdFeUSuj4YhIZ+0QlDVtS1QEXyvZbZky7ur9rHkZvP ZqlUsLJ2nOqsmahMTIQ8Mgx9SLEShWqD4kOF4zNfPJsgEMB49KbS2o9jxbGB+JKupjNddfxZ HlH1KF8QwCMZEYaTNogrVazuEJzx6JdRpR3sFda/0x5qjTadwIW6Cl9tkqe2h391dOGX1eOA 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HpE/D9sM+xACs803lFUIZC5H62G059cCPAXKgsFpNMKmBAWweBkVJAisoQeX50OP+/11ArV0 cv+fOTfJj0/KwFXJaaYh3LUQNILLBNxkSrhCLl8dUg53IbHx4NfIAgqxLWGfXM8DY1aFdU79 pac005PuhxCWkKTJz3gCmznnoat4GCnL5gy/m0Qk45l4PFqwWXVLo9AQg2Kp3mlIFZ6fsEKI AN5hxlbNvNb9V2Zo5bFZjPWPFTxOteM0omUAS+QopwU0yPLLGJVf2iCmItHcUXI+r2JwH1CJ jrHWeQEI2ucSKsNa8FllDmG/fQ== Message-ID: Date: Mon, 17 Jun 2019 11:59:22 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.6.1 MIME-Version: 1.0 In-Reply-To: <1560169080-27134-10-git-send-email-yong.wu@mediatek.com> Content-Language: en-US Cc: youlin.pei@mediatek.com, devicetree@vger.kernel.org, Nicolas Boichat , srv_heupstream@mediatek.com, Will Deacon , linux-kernel@vger.kernel.org, Evan Green , Tomasz Figa , iommu@lists.linux-foundation.org, Matthias Kaehlcke , linux-mediatek@lists.infradead.org, yingjoe.chen@mediatek.com, anan.sun@mediatek.com, linux-arm-kernel@lists.infradead.org X-BeenThere: iommu@lists.linux-foundation.org X-Mailman-Version: 2.1.12 Precedence: list List-Id: Development issues for Linux IOMMU support List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: iommu-bounces@lists.linux-foundation.org Errors-To: iommu-bounces@lists.linux-foundation.org On 10/06/2019 14:17, Yong Wu wrote: > The protect memory setting is a little different in the different SoCs. > In the register REG_MMU_CTRL_REG(0x110), the TF_PROT(translation fault > protect) shift bit is normally 4 while it shift 5 bits only in the > mt8173. This patch delete the complex MACRO and use a common if-else > instead. > > Signed-off-by: Yong Wu > Reviewed-by: Evan Green Reviewed-by: Matthias Brugger > --- > drivers/iommu/mtk_iommu.c | 13 ++++++------- > 1 file changed, 6 insertions(+), 7 deletions(-) > > diff --git a/drivers/iommu/mtk_iommu.c b/drivers/iommu/mtk_iommu.c > index ad838b9..d38dfa2 100644 > --- a/drivers/iommu/mtk_iommu.c > +++ b/drivers/iommu/mtk_iommu.c > @@ -52,12 +52,9 @@ > #define REG_MMU_DCM_DIS 0x050 > > #define REG_MMU_CTRL_REG 0x110 > +#define F_MMU_TF_PROT_TO_PROGRAM_ADDR (2 << 4) > #define F_MMU_PREFETCH_RT_REPLACE_MOD BIT(4) > -#define F_MMU_TF_PROTECT_SEL_SHIFT(data) \ > - ((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)) > +#define F_MMU_TF_PROT_TO_PROGRAM_ADDR_MT8173 (2 << 5) > > #define REG_MMU_IVRP_PADDR 0x114 > > @@ -519,9 +516,11 @@ static int mtk_iommu_hw_init(const struct mtk_iommu_data *data) > return ret; > } > > - regval = F_MMU_TF_PROTECT_SEL(2, data); > if (data->plat_data->m4u_plat == M4U_MT8173) > - regval |= F_MMU_PREFETCH_RT_REPLACE_MOD; > + regval = F_MMU_PREFETCH_RT_REPLACE_MOD | > + F_MMU_TF_PROT_TO_PROGRAM_ADDR_MT8173; > + else > + regval = F_MMU_TF_PROT_TO_PROGRAM_ADDR; > writel_relaxed(regval, data->base + REG_MMU_CTRL_REG); > > regval = F_L2_MULIT_HIT_EN | > _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu