diff options
| author | Fenghua Yu <fenghua.yu@intel.com> | 2008-10-17 15:14:13 -0400 |
|---|---|---|
| committer | Tony Luck <tony.luck@intel.com> | 2008-10-17 15:14:13 -0400 |
| commit | 62fdd7678a26efadd6ac5c2869543caff77d2df0 (patch) | |
| tree | 0dd67208590c4540ff6a4476579a55bcac0d1fce /arch/ia64/include/asm/swiotlb.h | |
| parent | 6bb7a935489dab20802dde6c2cb7d8582f4849bf (diff) | |
[IA64] Add Variable Page Size and IA64 Support in Intel IOMMU
The patch contains Intel IOMMU IA64 specific code. It defines new
machvec dig_vtd, hooks for IOMMU, DMAR table detection, cache line flush
function, etc.
For a generic kernel with CONFIG_DMAR=y, if Intel IOMMU is detected,
dig_vtd is used for machinve vector. Otherwise, kernel falls back to
dig machine vector. Kernel parameter "machvec=dig" or "intel_iommu=off"
can be used to force kernel to boot dig machine vector.
Signed-off-by: Fenghua Yu <fenghua.yu@intel.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
Diffstat (limited to 'arch/ia64/include/asm/swiotlb.h')
| -rw-r--r-- | arch/ia64/include/asm/swiotlb.h | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/arch/ia64/include/asm/swiotlb.h b/arch/ia64/include/asm/swiotlb.h new file mode 100644 index 000000000000..fb79423834d0 --- /dev/null +++ b/arch/ia64/include/asm/swiotlb.h | |||
| @@ -0,0 +1,56 @@ | |||
| 1 | #ifndef ASM_IA64__SWIOTLB_H | ||
| 2 | #define ASM_IA64__SWIOTLB_H | ||
| 3 | |||
| 4 | #include <linux/dma-mapping.h> | ||
| 5 | |||
| 6 | /* SWIOTLB interface */ | ||
| 7 | |||
| 8 | extern dma_addr_t swiotlb_map_single(struct device *hwdev, void *ptr, | ||
| 9 | size_t size, int dir); | ||
| 10 | extern void *swiotlb_alloc_coherent(struct device *hwdev, size_t size, | ||
| 11 | dma_addr_t *dma_handle, gfp_t flags); | ||
| 12 | extern void swiotlb_unmap_single(struct device *hwdev, dma_addr_t dev_addr, | ||
| 13 | size_t size, int dir); | ||
| 14 | extern void swiotlb_sync_single_for_cpu(struct device *hwdev, | ||
| 15 | dma_addr_t dev_addr, | ||
| 16 | size_t size, int dir); | ||
| 17 | extern void swiotlb_sync_single_for_device(struct device *hwdev, | ||
| 18 | dma_addr_t dev_addr, | ||
| 19 | size_t size, int dir); | ||
| 20 | extern void swiotlb_sync_single_range_for_cpu(struct device *hwdev, | ||
| 21 | dma_addr_t dev_addr, | ||
| 22 | unsigned long offset, | ||
| 23 | size_t size, int dir); | ||
| 24 | extern void swiotlb_sync_single_range_for_device(struct device *hwdev, | ||
| 25 | dma_addr_t dev_addr, | ||
| 26 | unsigned long offset, | ||
| 27 | size_t size, int dir); | ||
| 28 | extern void swiotlb_sync_sg_for_cpu(struct device *hwdev, | ||
| 29 | struct scatterlist *sg, int nelems, | ||
| 30 | int dir); | ||
| 31 | extern void swiotlb_sync_sg_for_device(struct device *hwdev, | ||
| 32 | struct scatterlist *sg, int nelems, | ||
| 33 | int dir); | ||
| 34 | extern int swiotlb_map_sg(struct device *hwdev, struct scatterlist *sg, | ||
| 35 | int nents, int direction); | ||
| 36 | extern void swiotlb_unmap_sg(struct device *hwdev, struct scatterlist *sg, | ||
| 37 | int nents, int direction); | ||
| 38 | extern int swiotlb_dma_mapping_error(struct device *hwdev, dma_addr_t dma_addr); | ||
| 39 | extern void swiotlb_free_coherent(struct device *hwdev, size_t size, | ||
| 40 | void *vaddr, dma_addr_t dma_handle); | ||
| 41 | extern int swiotlb_dma_supported(struct device *hwdev, u64 mask); | ||
| 42 | extern void swiotlb_init(void); | ||
| 43 | |||
| 44 | extern int swiotlb_force; | ||
| 45 | |||
| 46 | #ifdef CONFIG_SWIOTLB | ||
| 47 | extern int swiotlb; | ||
| 48 | extern void pci_swiotlb_init(void); | ||
| 49 | #else | ||
| 50 | #define swiotlb 0 | ||
| 51 | static inline void pci_swiotlb_init(void) | ||
| 52 | { | ||
| 53 | } | ||
| 54 | #endif | ||
| 55 | |||
| 56 | #endif /* ASM_IA64__SWIOTLB_H */ | ||