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gerrit-public.fairphone.software / kernel / msm-4.9 / 4b8817b2a06958efd868677880334229fe5a96cf / . / include / asm-x86 / swiotlb.h
blob: f5d9e74b1e4ab70a718886961113cafbdb2f4fcc [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]1#ifndef _ASM_SWIOTLB_H
Jan Beulichcde14bb2007-02-05 18:46:40 -0800[diff] [blame]2#define _ASM_SWIOTLB_H 1
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]3
Muli Ben-Yehuda17a941d2006-01-11 22:44:42 +0100[diff] [blame]4#include <asm/dma-mapping.h>
5
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]6/* SWIOTLB interface */
7
Muli Ben-Yehuda17a941d2006-01-11 22:44:42 +0100[diff] [blame]8extern dma_addr_t swiotlb_map_single(struct device *hwdev, void *ptr,
9 size_t size, int dir);
10extern void *swiotlb_alloc_coherent(struct device *hwdev, size_t size,
Joe Perchesa4c2d7d2008-03-23 01:03:37 -0700[diff] [blame]11 dma_addr_t *dma_handle, gfp_t flags);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]12extern void swiotlb_unmap_single(struct device *hwdev, dma_addr_t dev_addr,
Joe Perchesa4c2d7d2008-03-23 01:03:37 -0700[diff] [blame]13 size_t size, int dir);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]14extern void swiotlb_sync_single_for_cpu(struct device *hwdev,
Joe Perchesa4c2d7d2008-03-23 01:03:37 -0700[diff] [blame]15 dma_addr_t dev_addr,
16 size_t size, int dir);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]17extern void swiotlb_sync_single_for_device(struct device *hwdev,
Joe Perchesa4c2d7d2008-03-23 01:03:37 -0700[diff] [blame]18 dma_addr_t dev_addr,
19 size_t size, int dir);
John W. Linville878a97c2005-09-29 14:44:23 -0700[diff] [blame]20extern 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);
24extern 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);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]28extern void swiotlb_sync_sg_for_cpu(struct device *hwdev,
Joe Perchesa4c2d7d2008-03-23 01:03:37 -0700[diff] [blame]29 struct scatterlist *sg, int nelems,
30 int dir);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]31extern void swiotlb_sync_sg_for_device(struct device *hwdev,
Joe Perchesa4c2d7d2008-03-23 01:03:37 -0700[diff] [blame]32 struct scatterlist *sg, int nelems,
33 int dir);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]34extern int swiotlb_map_sg(struct device *hwdev, struct scatterlist *sg,
Joe Perchesa4c2d7d2008-03-23 01:03:37 -0700[diff] [blame]35 int nents, int direction);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]36extern void swiotlb_unmap_sg(struct device *hwdev, struct scatterlist *sg,
Joe Perchesa4c2d7d2008-03-23 01:03:37 -0700[diff] [blame]37 int nents, int direction);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]38extern int swiotlb_dma_mapping_error(dma_addr_t dma_addr);
Joe Perchesa4c2d7d2008-03-23 01:03:37 -0700[diff] [blame]39extern void swiotlb_free_coherent(struct device *hwdev, size_t size,
40 void *vaddr, dma_addr_t dma_handle);
Muli Ben-Yehuda17a941d2006-01-11 22:44:42 +0100[diff] [blame]41extern int swiotlb_dma_supported(struct device *hwdev, u64 mask);
42extern void swiotlb_init(void);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]43
Andi Kleen65f87d82006-07-29 21:42:49 +0200[diff] [blame]44extern int swiotlb_force;
45
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]46#ifdef CONFIG_SWIOTLB
47extern int swiotlb;
48#else
49#define swiotlb 0
50#endif
51
Muli Ben-Yehuda17a941d2006-01-11 22:44:42 +0100[diff] [blame]52extern void pci_swiotlb_init(void);
53
Jan Beulichcde14bb2007-02-05 18:46:40 -0800[diff] [blame]54static inline void dma_mark_clean(void *addr, size_t size) {}
55
56#endif /* _ASM_SWIOTLB_H */