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Mon, 17 Aug 2020 10:18:33 -0700 (PDT) From: Jean-Philippe Brucker To: iommu@lists.linux-foundation.org, linux-arm-kernel@lists.infradead.org, linux-mm@kvack.org Subject: [PATCH RESEND v9 05/13] iommu/io-pgtable-arm: Move some definitions to a header Date: Mon, 17 Aug 2020 19:15:51 +0200 Message-Id: <20200817171558.325917-6-jean-philippe@linaro.org> X-Mailer: git-send-email 2.28.0 In-Reply-To: <20200817171558.325917-1-jean-philippe@linaro.org> References: <20200817171558.325917-1-jean-philippe@linaro.org> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200817_131834_994713_8F06095C X-CRM114-Status: GOOD ( 17.19 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: fenghua.yu@intel.com, jacob.jun.pan@linux.intel.com, Jean-Philippe Brucker , catalin.marinas@arm.com, joro@8bytes.org, robin.murphy@arm.com, zhengxiang9@huawei.com, Jonathan.Cameron@huawei.com, zhangfei.gao@linaro.org, will@kernel.org, xuzaibo@huawei.com, baolu.lu@linux.intel.com Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Extract some of the most generic TCR defines, so they can be reused by the page table sharing code. Acked-by: Will Deacon Signed-off-by: Jean-Philippe Brucker --- drivers/iommu/io-pgtable-arm.h | 30 ++++++++++++++++++++++++++++++ drivers/iommu/io-pgtable-arm.c | 27 ++------------------------- MAINTAINERS | 3 +-- 3 files changed, 33 insertions(+), 27 deletions(-) create mode 100644 drivers/iommu/io-pgtable-arm.h diff --git a/drivers/iommu/io-pgtable-arm.h b/drivers/iommu/io-pgtable-arm.h new file mode 100644 index 000000000000..ba7cfdf7afa0 --- /dev/null +++ b/drivers/iommu/io-pgtable-arm.h @@ -0,0 +1,30 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +#ifndef IO_PGTABLE_ARM_H_ +#define IO_PGTABLE_ARM_H_ + +#define ARM_LPAE_TCR_TG0_4K 0 +#define ARM_LPAE_TCR_TG0_64K 1 +#define ARM_LPAE_TCR_TG0_16K 2 + +#define ARM_LPAE_TCR_TG1_16K 1 +#define ARM_LPAE_TCR_TG1_4K 2 +#define ARM_LPAE_TCR_TG1_64K 3 + +#define ARM_LPAE_TCR_SH_NS 0 +#define ARM_LPAE_TCR_SH_OS 2 +#define ARM_LPAE_TCR_SH_IS 3 + +#define ARM_LPAE_TCR_RGN_NC 0 +#define ARM_LPAE_TCR_RGN_WBWA 1 +#define ARM_LPAE_TCR_RGN_WT 2 +#define ARM_LPAE_TCR_RGN_WB 3 + +#define ARM_LPAE_TCR_PS_32_BIT 0x0ULL +#define ARM_LPAE_TCR_PS_36_BIT 0x1ULL +#define ARM_LPAE_TCR_PS_40_BIT 0x2ULL +#define ARM_LPAE_TCR_PS_42_BIT 0x3ULL +#define ARM_LPAE_TCR_PS_44_BIT 0x4ULL +#define ARM_LPAE_TCR_PS_48_BIT 0x5ULL +#define ARM_LPAE_TCR_PS_52_BIT 0x6ULL + +#endif /* IO_PGTABLE_ARM_H_ */ diff --git a/drivers/iommu/io-pgtable-arm.c b/drivers/iommu/io-pgtable-arm.c index dc7bcf858b6d..534810b6be77 100644 --- a/drivers/iommu/io-pgtable-arm.c +++ b/drivers/iommu/io-pgtable-arm.c @@ -20,6 +20,8 @@ #include +#include "io-pgtable-arm.h" + #define ARM_LPAE_MAX_ADDR_BITS 52 #define ARM_LPAE_S2_MAX_CONCAT_PAGES 16 #define ARM_LPAE_MAX_LEVELS 4 @@ -100,23 +102,6 @@ #define ARM_LPAE_PTE_MEMATTR_DEV (((arm_lpae_iopte)0x1) << 2) /* Register bits */ -#define ARM_LPAE_TCR_TG0_4K 0 -#define ARM_LPAE_TCR_TG0_64K 1 -#define ARM_LPAE_TCR_TG0_16K 2 - -#define ARM_LPAE_TCR_TG1_16K 1 -#define ARM_LPAE_TCR_TG1_4K 2 -#define ARM_LPAE_TCR_TG1_64K 3 - -#define ARM_LPAE_TCR_SH_NS 0 -#define ARM_LPAE_TCR_SH_OS 2 -#define ARM_LPAE_TCR_SH_IS 3 - -#define ARM_LPAE_TCR_RGN_NC 0 -#define ARM_LPAE_TCR_RGN_WBWA 1 -#define ARM_LPAE_TCR_RGN_WT 2 -#define ARM_LPAE_TCR_RGN_WB 3 - #define ARM_LPAE_VTCR_SL0_MASK 0x3 #define ARM_LPAE_TCR_T0SZ_SHIFT 0 @@ -124,14 +109,6 @@ #define ARM_LPAE_VTCR_PS_SHIFT 16 #define ARM_LPAE_VTCR_PS_MASK 0x7 -#define ARM_LPAE_TCR_PS_32_BIT 0x0ULL -#define ARM_LPAE_TCR_PS_36_BIT 0x1ULL -#define ARM_LPAE_TCR_PS_40_BIT 0x2ULL -#define ARM_LPAE_TCR_PS_42_BIT 0x3ULL -#define ARM_LPAE_TCR_PS_44_BIT 0x4ULL -#define ARM_LPAE_TCR_PS_48_BIT 0x5ULL -#define ARM_LPAE_TCR_PS_52_BIT 0x6ULL - #define ARM_LPAE_MAIR_ATTR_SHIFT(n) ((n) << 3) #define ARM_LPAE_MAIR_ATTR_MASK 0xff #define ARM_LPAE_MAIR_ATTR_DEVICE 0x04 diff --git a/MAINTAINERS b/MAINTAINERS index deaafb617361..4470769a9833 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -1506,8 +1506,7 @@ L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) S: Maintained F: Documentation/devicetree/bindings/iommu/arm,smmu* F: drivers/iommu/arm/ -F: drivers/iommu/io-pgtable-arm-v7s.c -F: drivers/iommu/io-pgtable-arm.c +F: drivers/iommu/io-pgtable-arm* ARM SUB-ARCHITECTURES L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) -- 2.28.0 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel