diff options
author | Paul Mundt <lethal@linux-sh.org> | 2011-01-13 15:06:28 +0900 |
---|---|---|
committer | Paul Mundt <lethal@linux-sh.org> | 2011-01-13 15:06:28 +0900 |
commit | f43dc23d5ea91fca257be02138a255f02d98e806 (patch) | |
tree | b29722f6e965316e90ac97abf79923ced250dc21 /include/linux/swiotlb.h | |
parent | f8e53553f452dcbf67cb89c8cba63a1cd6eb4cc0 (diff) | |
parent | 4162cf64973df51fc885825bc9ca4d055891c49f (diff) |
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6 into common/serial-rework
Conflicts:
arch/sh/kernel/cpu/sh2/setup-sh7619.c
arch/sh/kernel/cpu/sh2a/setup-mxg.c
arch/sh/kernel/cpu/sh2a/setup-sh7201.c
arch/sh/kernel/cpu/sh2a/setup-sh7203.c
arch/sh/kernel/cpu/sh2a/setup-sh7206.c
arch/sh/kernel/cpu/sh3/setup-sh7705.c
arch/sh/kernel/cpu/sh3/setup-sh770x.c
arch/sh/kernel/cpu/sh3/setup-sh7710.c
arch/sh/kernel/cpu/sh3/setup-sh7720.c
arch/sh/kernel/cpu/sh4/setup-sh4-202.c
arch/sh/kernel/cpu/sh4/setup-sh7750.c
arch/sh/kernel/cpu/sh4/setup-sh7760.c
arch/sh/kernel/cpu/sh4a/setup-sh7343.c
arch/sh/kernel/cpu/sh4a/setup-sh7366.c
arch/sh/kernel/cpu/sh4a/setup-sh7722.c
arch/sh/kernel/cpu/sh4a/setup-sh7723.c
arch/sh/kernel/cpu/sh4a/setup-sh7724.c
arch/sh/kernel/cpu/sh4a/setup-sh7763.c
arch/sh/kernel/cpu/sh4a/setup-sh7770.c
arch/sh/kernel/cpu/sh4a/setup-sh7780.c
arch/sh/kernel/cpu/sh4a/setup-sh7785.c
arch/sh/kernel/cpu/sh4a/setup-sh7786.c
arch/sh/kernel/cpu/sh4a/setup-shx3.c
arch/sh/kernel/cpu/sh5/setup-sh5.c
drivers/serial/sh-sci.c
drivers/serial/sh-sci.h
include/linux/serial_sci.h
Diffstat (limited to 'include/linux/swiotlb.h')
-rw-r--r-- | include/linux/swiotlb.h | 54 |
1 files changed, 32 insertions, 22 deletions
diff --git a/include/linux/swiotlb.h b/include/linux/swiotlb.h index cb1a6631b8f4..8c0e349f4a6c 100644 --- a/include/linux/swiotlb.h +++ b/include/linux/swiotlb.h @@ -7,6 +7,8 @@ struct device; struct dma_attrs; struct scatterlist; +extern int swiotlb_force; + /* * Maximum allowable number of contiguous slabs to map, * must be a power of 2. What is the appropriate value ? @@ -14,25 +16,36 @@ struct scatterlist; */ #define IO_TLB_SEGSIZE 128 - /* * log of the size of each IO TLB slab. The number of slabs is command line * controllable. */ #define IO_TLB_SHIFT 11 -extern void -swiotlb_init(void); +extern void swiotlb_init(int verbose); +extern void swiotlb_init_with_tbl(char *tlb, unsigned long nslabs, int verbose); + +/* + * Enumeration for sync targets + */ +enum dma_sync_target { + SYNC_FOR_CPU = 0, + SYNC_FOR_DEVICE = 1, +}; +extern void *swiotlb_tbl_map_single(struct device *hwdev, dma_addr_t tbl_dma_addr, + phys_addr_t phys, size_t size, + enum dma_data_direction dir); -extern void *swiotlb_alloc_boot(size_t bytes, unsigned long nslabs); -extern void *swiotlb_alloc(unsigned order, unsigned long nslabs); +extern void swiotlb_tbl_unmap_single(struct device *hwdev, char *dma_addr, + size_t size, enum dma_data_direction dir); -extern dma_addr_t swiotlb_phys_to_bus(struct device *hwdev, - phys_addr_t address); -extern phys_addr_t swiotlb_bus_to_phys(struct device *hwdev, - dma_addr_t address); +extern void swiotlb_tbl_sync_single(struct device *hwdev, char *dma_addr, + size_t size, enum dma_data_direction dir, + enum dma_sync_target target); -extern int swiotlb_arch_range_needs_mapping(phys_addr_t paddr, size_t size); +/* Accessory functions. */ +extern void swiotlb_bounce(phys_addr_t phys, char *dma_addr, size_t size, + enum dma_data_direction dir); extern void *swiotlb_alloc_coherent(struct device *hwdev, size_t size, @@ -52,11 +65,11 @@ extern void swiotlb_unmap_page(struct device *hwdev, dma_addr_t dev_addr, extern int swiotlb_map_sg(struct device *hwdev, struct scatterlist *sg, int nents, - int direction); + enum dma_data_direction dir); extern void swiotlb_unmap_sg(struct device *hwdev, struct scatterlist *sg, int nents, - int direction); + enum dma_data_direction dir); extern int swiotlb_map_sg_attrs(struct device *hwdev, struct scatterlist *sgl, int nelems, @@ -83,20 +96,17 @@ extern void swiotlb_sync_sg_for_device(struct device *hwdev, struct scatterlist *sg, int nelems, enum dma_data_direction dir); -extern void -swiotlb_sync_single_range_for_cpu(struct device *hwdev, dma_addr_t dev_addr, - unsigned long offset, size_t size, - enum dma_data_direction dir); - -extern void -swiotlb_sync_single_range_for_device(struct device *hwdev, dma_addr_t dev_addr, - unsigned long offset, size_t size, - enum dma_data_direction dir); - extern int swiotlb_dma_mapping_error(struct device *hwdev, dma_addr_t dma_addr); extern int swiotlb_dma_supported(struct device *hwdev, u64 mask); +#ifdef CONFIG_SWIOTLB +extern void __init swiotlb_free(void); +#else +static inline void swiotlb_free(void) { } +#endif + +extern void swiotlb_print_info(void); #endif /* __LINUX_SWIOTLB_H */ |