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2
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4
5#ifndef _SPARC64_IOMMU_H
6#define _SPARC64_IOMMU_H
7
8
9#define IOPTE_VALID 0x8000000000000000UL
10#define IOPTE_64K 0x2000000000000000UL
11#define IOPTE_STBUF 0x1000000000000000UL
12#define IOPTE_INTRA 0x0800000000000000UL
13#define IOPTE_CONTEXT 0x07ff800000000000UL
14#define IOPTE_PAGE 0x00007fffffffe000UL
15#define IOPTE_CACHE 0x0000000000000010UL
16#define IOPTE_WRITE 0x0000000000000002UL
17
18#define IOMMU_NUM_CTXS 4096
19
20struct iommu_arena {
21 unsigned long *map;
22 unsigned int hint;
23 unsigned int limit;
24};
25
26struct iommu {
27 spinlock_t lock;
28 struct iommu_arena arena;
29 void (*flush_all)(struct iommu *);
30 iopte_t *page_table;
31 u32 page_table_map_base;
32 unsigned long iommu_control;
33 unsigned long iommu_tsbbase;
34 unsigned long iommu_flush;
35 unsigned long iommu_flushinv;
36 unsigned long iommu_tags;
37 unsigned long iommu_ctxflush;
38 unsigned long write_complete_reg;
39 unsigned long dummy_page;
40 unsigned long dummy_page_pa;
41 unsigned long ctx_lowest_free;
42 DECLARE_BITMAP(ctx_bitmap, IOMMU_NUM_CTXS);
43 u32 dma_addr_mask;
44};
45
46struct strbuf {
47 int strbuf_enabled;
48 unsigned long strbuf_control;
49 unsigned long strbuf_pflush;
50 unsigned long strbuf_fsync;
51 unsigned long strbuf_err_stat;
52 unsigned long strbuf_tag_diag;
53 unsigned long strbuf_line_diag;
54 unsigned long strbuf_ctxflush;
55 unsigned long strbuf_ctxmatch_base;
56 unsigned long strbuf_flushflag_pa;
57 volatile unsigned long *strbuf_flushflag;
58 volatile unsigned long __flushflag_buf[(64+(64-1)) / sizeof(long)];
59};
60
61extern int iommu_table_init(struct iommu *iommu, int tsbsize,
62 u32 dma_offset, u32 dma_addr_mask,
63 int numa_node);
64
65#endif
66
