| Suresh Siddha | e61d98d | 2008-07-10 11:16:35 -0700 | [diff] [blame] | 1 | #ifndef _DMA_REMAPPING_H |
| 2 | #define _DMA_REMAPPING_H |
| 3 | |
| 4 | /* |
| Fenghua Yu | 5b6985c | 2008-10-16 18:02:32 -0700 | [diff] [blame] | 5 | * VT-d hardware uses 4KiB page size regardless of host page size. |
| Suresh Siddha | e61d98d | 2008-07-10 11:16:35 -0700 | [diff] [blame] | 6 | */ |
| Fenghua Yu | 5b6985c | 2008-10-16 18:02:32 -0700 | [diff] [blame] | 7 | #define VTD_PAGE_SHIFT (12) |
| 8 | #define VTD_PAGE_SIZE (1UL << VTD_PAGE_SHIFT) |
| 9 | #define VTD_PAGE_MASK (((u64)-1) << VTD_PAGE_SHIFT) |
| 10 | #define VTD_PAGE_ALIGN(addr) (((addr) + VTD_PAGE_SIZE - 1) & VTD_PAGE_MASK) |
| Suresh Siddha | e61d98d | 2008-07-10 11:16:35 -0700 | [diff] [blame] | 11 | |
| Suresh Siddha | e61d98d | 2008-07-10 11:16:35 -0700 | [diff] [blame] | 12 | #define DMA_PTE_READ (1) |
| 13 | #define DMA_PTE_WRITE (2) |
| 14 | |
| Suresh Siddha | e61d98d | 2008-07-10 11:16:35 -0700 | [diff] [blame] | 15 | struct intel_iommu; |
| Mark McLoughlin | 99126f7 | 2008-11-20 15:49:47 +0000 | [diff] [blame] | 16 | struct dmar_domain; |
| 17 | struct root_entry; |
| Suresh Siddha | e61d98d | 2008-07-10 11:16:35 -0700 | [diff] [blame] | 18 | |
| Suresh Siddha | e61d98d | 2008-07-10 11:16:35 -0700 | [diff] [blame] | 19 | extern void free_dmar_iommu(struct intel_iommu *iommu); |
| Weidong Han | 1b57368 | 2008-12-08 15:34:06 +0800 | [diff] [blame^] | 20 | extern int iommu_calculate_agaw(struct intel_iommu *iommu); |
| Suresh Siddha | e61d98d | 2008-07-10 11:16:35 -0700 | [diff] [blame] | 21 | |
| Suresh Siddha | 2ae2101 | 2008-07-10 11:16:43 -0700 | [diff] [blame] | 22 | extern int dmar_disabled; |
| 23 | |
| Suresh Siddha | e61d98d | 2008-07-10 11:16:35 -0700 | [diff] [blame] | 24 | #endif |