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								/* iommu.h: Definitions for the sun5 IOMMU.
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								 *
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								 * Copyright (C) 1996, 1999, 2007 David S. Miller (davem@davemloft.net)
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								 */
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								#ifndef _SPARC64_IOMMU_H
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								#define _SPARC64_IOMMU_H
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								/* The format of an iopte in the page tables. */
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								#define IOPTE_VALID   0x8000000000000000UL
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								#define IOPTE_64K     0x2000000000000000UL
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								#define IOPTE_STBUF   0x1000000000000000UL
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								#define IOPTE_INTRA   0x0800000000000000UL
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								#define IOPTE_CONTEXT 0x07ff800000000000UL
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								#define IOPTE_PAGE    0x00007fffffffe000UL
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								#define IOPTE_CACHE   0x0000000000000010UL
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								#define IOPTE_WRITE   0x0000000000000002UL
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								#define IOMMU_NUM_CTXS	4096
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								struct iommu_arena {
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									unsigned long	*map;
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									unsigned int	hint;
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									unsigned int	limit;
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								};
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								struct iommu {
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									spinlock_t		lock;
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									struct iommu_arena	arena;
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									void			(*flush_all)(struct iommu *);
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									iopte_t			*page_table;
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									u32			page_table_map_base;
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									unsigned long		iommu_control;
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									unsigned long		iommu_tsbbase;
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									unsigned long		iommu_flush;
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									unsigned long		iommu_flushinv;
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									unsigned long		iommu_tags;
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									unsigned long		iommu_ctxflush;
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									unsigned long		write_complete_reg;
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									unsigned long		dummy_page;
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									unsigned long		dummy_page_pa;
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									unsigned long		ctx_lowest_free;
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									DECLARE_BITMAP(ctx_bitmap, IOMMU_NUM_CTXS);
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									u32			dma_addr_mask;
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								};
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								struct strbuf {
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									int			strbuf_enabled;
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									unsigned long		strbuf_control;
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									unsigned long		strbuf_pflush;
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									unsigned long		strbuf_fsync;
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									unsigned long		strbuf_err_stat;
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									unsigned long		strbuf_tag_diag;
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									unsigned long		strbuf_line_diag;
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									unsigned long		strbuf_ctxflush;
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									unsigned long		strbuf_ctxmatch_base;
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									unsigned long		strbuf_flushflag_pa;
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									volatile unsigned long *strbuf_flushflag;
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									volatile unsigned long	__flushflag_buf[(64+(64-1)) / sizeof(long)];
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								};
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								extern int iommu_table_init(struct iommu *iommu, int tsbsize,
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											    u32 dma_offset, u32 dma_addr_mask,
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											    int numa_node);
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								#endif /* !(_SPARC64_IOMMU_H) */
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