Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* $Id: iommu.h,v 1.10 2001/03/08 09:55:56 davem Exp $ |
| 2 | * iommu.h: Definitions for the sun5 IOMMU. |
| 3 | * |
| 4 | * Copyright (C) 1996, 1999 David S. Miller (davem@caip.rutgers.edu) |
| 5 | */ |
| 6 | #ifndef _SPARC64_IOMMU_H |
| 7 | #define _SPARC64_IOMMU_H |
| 8 | |
| 9 | /* The format of an iopte in the page tables. */ |
David S. Miller | 9b3627f | 2007-04-24 23:51:18 -0700 | [diff] [blame^] | 10 | #define IOPTE_VALID 0x8000000000000000UL |
| 11 | #define IOPTE_64K 0x2000000000000000UL |
| 12 | #define IOPTE_STBUF 0x1000000000000000UL |
| 13 | #define IOPTE_INTRA 0x0800000000000000UL |
| 14 | #define IOPTE_CONTEXT 0x07ff800000000000UL |
| 15 | #define IOPTE_PAGE 0x00007fffffffe000UL |
| 16 | #define IOPTE_CACHE 0x0000000000000010UL |
| 17 | #define IOPTE_WRITE 0x0000000000000002UL |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 18 | |
David S. Miller | 7c963ad | 2005-05-31 16:57:59 -0700 | [diff] [blame] | 19 | #define IOMMU_NUM_CTXS 4096 |
| 20 | |
David S. Miller | 9b3627f | 2007-04-24 23:51:18 -0700 | [diff] [blame^] | 21 | struct iommu_arena { |
| 22 | unsigned long *map; |
| 23 | unsigned int hint; |
| 24 | unsigned int limit; |
| 25 | }; |
| 26 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 27 | #endif /* !(_SPARC_IOMMU_H) */ |