Extract some of the most generic TCR defines, so they can be reused by the page table sharing code. Signed-off-by: Jean-Philippe Brucker <jean-philippe@xxxxxxxxxx> --- v5->v6: Update MAINTAINERS --- 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 0000000000000..ba7cfdf7afa03 --- /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 04fbd4bf0ff9f..f71a2eade04ab 100644 --- a/drivers/iommu/io-pgtable-arm.c +++ b/drivers/iommu/io-pgtable-arm.c @@ -20,6 +20,8 @@ #include <asm/barrier.h> +#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 26f281d9f32a4..c637d38764594 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -1463,8 +1463,7 @@ L: linux-arm-kernel@xxxxxxxxxxxxxxxxxxx (moderated for non-subscribers) S: Maintained F: Documentation/devicetree/bindings/iommu/arm,smmu* F: drivers/iommu/arm-smmu* -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@xxxxxxxxxxxxxxxxxxx (moderated for non-subscribers) -- 2.26.2
