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@@ -13,6 +13,12 @@
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#ifndef __MACH_IOMMU_H
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#define __MACH_IOMMU_H
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+#include <linux/io.h>
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+
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+#if defined(CONFIG_ARCH_OMAP1)
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+#error "iommu for this processor not implemented yet"
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+#endif
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+
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struct iotlb_entry {
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u32 da;
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u32 pa;
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@@ -159,11 +165,70 @@ static inline struct omap_iommu *dev_to_omap_iommu(struct device *dev)
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#define OMAP_IOMMU_ERR_TBLWALK_FAULT (1 << 3)
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#define OMAP_IOMMU_ERR_MULTIHIT_FAULT (1 << 4)
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-#if defined(CONFIG_ARCH_OMAP1)
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-#error "iommu for this processor not implemented yet"
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-#else
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-#include <plat/iommu2.h>
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-#endif
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+/*
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+ * MMU Register offsets
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+ */
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+#define MMU_REVISION 0x00
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+#define MMU_SYSCONFIG 0x10
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+#define MMU_SYSSTATUS 0x14
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+#define MMU_IRQSTATUS 0x18
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+#define MMU_IRQENABLE 0x1c
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+#define MMU_WALKING_ST 0x40
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+#define MMU_CNTL 0x44
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+#define MMU_FAULT_AD 0x48
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+#define MMU_TTB 0x4c
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+#define MMU_LOCK 0x50
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+#define MMU_LD_TLB 0x54
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+#define MMU_CAM 0x58
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+#define MMU_RAM 0x5c
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+#define MMU_GFLUSH 0x60
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+#define MMU_FLUSH_ENTRY 0x64
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+#define MMU_READ_CAM 0x68
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+#define MMU_READ_RAM 0x6c
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+#define MMU_EMU_FAULT_AD 0x70
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+
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+#define MMU_REG_SIZE 256
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+
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+/*
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+ * MMU Register bit definitions
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+ */
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+#define MMU_LOCK_BASE_SHIFT 10
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+#define MMU_LOCK_BASE_MASK (0x1f << MMU_LOCK_BASE_SHIFT)
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+#define MMU_LOCK_BASE(x) \
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+ ((x & MMU_LOCK_BASE_MASK) >> MMU_LOCK_BASE_SHIFT)
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+
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+#define MMU_LOCK_VICT_SHIFT 4
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+#define MMU_LOCK_VICT_MASK (0x1f << MMU_LOCK_VICT_SHIFT)
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+#define MMU_LOCK_VICT(x) \
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+ ((x & MMU_LOCK_VICT_MASK) >> MMU_LOCK_VICT_SHIFT)
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+
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+#define MMU_CAM_VATAG_SHIFT 12
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+#define MMU_CAM_VATAG_MASK \
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+ ((~0UL >> MMU_CAM_VATAG_SHIFT) << MMU_CAM_VATAG_SHIFT)
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+#define MMU_CAM_P (1 << 3)
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+#define MMU_CAM_V (1 << 2)
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+#define MMU_CAM_PGSZ_MASK 3
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+#define MMU_CAM_PGSZ_1M (0 << 0)
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+#define MMU_CAM_PGSZ_64K (1 << 0)
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+#define MMU_CAM_PGSZ_4K (2 << 0)
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+#define MMU_CAM_PGSZ_16M (3 << 0)
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+
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+#define MMU_RAM_PADDR_SHIFT 12
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+#define MMU_RAM_PADDR_MASK \
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+ ((~0UL >> MMU_RAM_PADDR_SHIFT) << MMU_RAM_PADDR_SHIFT)
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+#define MMU_RAM_ENDIAN_SHIFT 9
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+#define MMU_RAM_ENDIAN_MASK (1 << MMU_RAM_ENDIAN_SHIFT)
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+#define MMU_RAM_ENDIAN_BIG (1 << MMU_RAM_ENDIAN_SHIFT)
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+#define MMU_RAM_ENDIAN_LITTLE (0 << MMU_RAM_ENDIAN_SHIFT)
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+#define MMU_RAM_ELSZ_SHIFT 7
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+#define MMU_RAM_ELSZ_MASK (3 << MMU_RAM_ELSZ_SHIFT)
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+#define MMU_RAM_ELSZ_8 (0 << MMU_RAM_ELSZ_SHIFT)
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+#define MMU_RAM_ELSZ_16 (1 << MMU_RAM_ELSZ_SHIFT)
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+#define MMU_RAM_ELSZ_32 (2 << MMU_RAM_ELSZ_SHIFT)
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+#define MMU_RAM_ELSZ_NONE (3 << MMU_RAM_ELSZ_SHIFT)
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+#define MMU_RAM_MIXED_SHIFT 6
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+#define MMU_RAM_MIXED_MASK (1 << MMU_RAM_MIXED_SHIFT)
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+#define MMU_RAM_MIXED MMU_RAM_MIXED_MASK
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/*
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* utilities for super page(16MB, 1MB, 64KB and 4KB)
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@@ -218,4 +283,17 @@ omap_iommu_dump_ctx(struct omap_iommu *obj, char *buf, ssize_t len);
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extern size_t
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omap_dump_tlb_entries(struct omap_iommu *obj, char *buf, ssize_t len);
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+/*
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+ * register accessors
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+ */
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+static inline u32 iommu_read_reg(struct omap_iommu *obj, size_t offs)
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+{
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+ return __raw_readl(obj->regbase + offs);
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+}
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+
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+static inline void iommu_write_reg(struct omap_iommu *obj, u32 val, size_t offs)
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+{
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+ __raw_writel(val, obj->regbase + offs);
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+}
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+
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#endif /* __MACH_IOMMU_H */
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