Gitiles
Code Review Sign In
gerrit-public.fairphone.software / kernel / msm-4.9 / 5e3609f60c09f0f15f71f80c6d7933b2c7be71a6 / . / include / asm-sparc64 / iommu.h
blob: d7b9afcba08bf433c87d8569f0169d1eaec68343 [file] [log] [blame]
David S. Millerad7ad572007-07-27 22:39:14 -0700[diff] [blame]1/* iommu.h: Definitions for the sun5 IOMMU.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]2 *
David S. Millerad7ad572007-07-27 22:39:14 -0700[diff] [blame]3 * Copyright (C) 1996, 1999, 2007 David S. Miller (davem@davemloft.net)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]4 */
5#ifndef _SPARC64_IOMMU_H
6#define _SPARC64_IOMMU_H
7
8/* The format of an iopte in the page tables. */
David S. Miller9b3627f2007-04-24 23:51:18 -0700[diff] [blame]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
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]17
David S. Miller7c963ad2005-05-31 16:57:59 -0700[diff] [blame]18#define IOMMU_NUM_CTXS 4096
19
David S. Miller9b3627f2007-04-24 23:51:18 -0700[diff] [blame]20struct iommu_arena {
21 unsigned long *map;
22 unsigned int hint;
23 unsigned int limit;
24};
25
David S. Miller66875082007-04-25 00:12:09 -0700[diff] [blame]26struct iommu {
27 spinlock_t lock;
28 struct iommu_arena arena;
David S. Millerd2841422008-02-08 18:05:46 -0800[diff] [blame]29 void (*flush_all)(struct iommu *);
David S. Miller66875082007-04-25 00:12:09 -0700[diff] [blame]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;
David S. Miller861fe902007-05-02 17:31:36 -0700[diff] [blame]35 unsigned long iommu_flushinv;
David S. Millerad7ad572007-07-27 22:39:14 -0700[diff] [blame]36 unsigned long iommu_tags;
David S. Miller66875082007-04-25 00:12:09 -0700[diff] [blame]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_ctxflush;
52 unsigned long strbuf_ctxmatch_base;
53 unsigned long strbuf_flushflag_pa;
54 volatile unsigned long *strbuf_flushflag;
55 volatile unsigned long __flushflag_buf[(64+(64-1)) / sizeof(long)];
56};
57
David S. Millerad7ad572007-07-27 22:39:14 -0700[diff] [blame]58extern int iommu_table_init(struct iommu *iommu, int tsbsize,
David S. Millerc1b1a5f2008-03-19 04:52:48 -0700[diff] [blame]59 u32 dma_offset, u32 dma_addr_mask,
60 int numa_node);
David S. Millerad7ad572007-07-27 22:39:14 -0700[diff] [blame]61
62#endif /* !(_SPARC64_IOMMU_H) */