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parisc: convert to dma_map_ops
Signed-off-by: Christoph Hellwig <hch@lst.de> Tested-by: Helge Deller <deller@gmx.de> Acked-by: Helge Deller <deller@gmx.de> Cc: Christian Borntraeger <borntraeger@de.ibm.com> Cc: Joerg Roedel <jroedel@suse.de> Cc: Sebastian Ott <sebott@linux.vnet.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Christoph Hellwig
Linus Torvalds
parent
eae0751963
commit
79387179e2
@ -29,6 +29,8 @@ config PARISC
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select TTY # Needed for pdc_cons.c
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select HAVE_DEBUG_STACKOVERFLOW
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select HAVE_ARCH_AUDITSYSCALL
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select ARCH_NO_COHERENT_DMA_MMAP
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select HAVE_DMA_ATTRS
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help
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The PA-RISC microprocessor is designed by Hewlett-Packard and used
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@ -1,30 +1,11 @@
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#ifndef _PARISC_DMA_MAPPING_H
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#define _PARISC_DMA_MAPPING_H
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#include <linux/mm.h>
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#include <linux/scatterlist.h>
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#include <asm/cacheflush.h>
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/* See Documentation/DMA-API-HOWTO.txt */
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struct hppa_dma_ops {
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int (*dma_supported)(struct device *dev, u64 mask);
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void *(*alloc_consistent)(struct device *dev, size_t size, dma_addr_t *iova, gfp_t flag);
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void *(*alloc_noncoherent)(struct device *dev, size_t size, dma_addr_t *iova, gfp_t flag);
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void (*free_consistent)(struct device *dev, size_t size, void *vaddr, dma_addr_t iova);
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dma_addr_t (*map_single)(struct device *dev, void *addr, size_t size, enum dma_data_direction direction);
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void (*unmap_single)(struct device *dev, dma_addr_t iova, size_t size, enum dma_data_direction direction);
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int (*map_sg)(struct device *dev, struct scatterlist *sg, int nents, enum dma_data_direction direction);
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void (*unmap_sg)(struct device *dev, struct scatterlist *sg, int nhwents, enum dma_data_direction direction);
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void (*dma_sync_single_for_cpu)(struct device *dev, dma_addr_t iova, unsigned long offset, size_t size, enum dma_data_direction direction);
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void (*dma_sync_single_for_device)(struct device *dev, dma_addr_t iova, unsigned long offset, size_t size, enum dma_data_direction direction);
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void (*dma_sync_sg_for_cpu)(struct device *dev, struct scatterlist *sg, int nelems, enum dma_data_direction direction);
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void (*dma_sync_sg_for_device)(struct device *dev, struct scatterlist *sg, int nelems, enum dma_data_direction direction);
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};
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/*
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** We could live without the hppa_dma_ops indirection if we didn't want
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** to support 4 different coherent dma models with one binary (they will
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** someday be loadable modules):
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** We need to support 4 different coherent dma models with one binary:
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**
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** I/O MMU consistent method dma_sync behavior
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** ============= ====================== =======================
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** a) PA-7x00LC uncachable host memory flush/purge
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@ -40,158 +21,22 @@ struct hppa_dma_ops {
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*/
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#ifdef CONFIG_PA11
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extern struct hppa_dma_ops pcxl_dma_ops;
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extern struct hppa_dma_ops pcx_dma_ops;
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extern struct dma_map_ops pcxl_dma_ops;
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extern struct dma_map_ops pcx_dma_ops;
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#endif
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extern struct hppa_dma_ops *hppa_dma_ops;
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extern struct dma_map_ops *hppa_dma_ops;
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#define dma_alloc_attrs(d, s, h, f, a) dma_alloc_coherent(d, s, h, f)
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#define dma_free_attrs(d, s, h, f, a) dma_free_coherent(d, s, h, f)
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static inline void *
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dma_alloc_coherent(struct device *dev, size_t size, dma_addr_t *dma_handle,
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gfp_t flag)
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static inline struct dma_map_ops *get_dma_ops(struct device *dev)
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{
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return hppa_dma_ops->alloc_consistent(dev, size, dma_handle, flag);
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}
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static inline void *
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dma_alloc_noncoherent(struct device *dev, size_t size, dma_addr_t *dma_handle,
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gfp_t flag)
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{
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return hppa_dma_ops->alloc_noncoherent(dev, size, dma_handle, flag);
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}
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static inline void
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dma_free_coherent(struct device *dev, size_t size,
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void *vaddr, dma_addr_t dma_handle)
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{
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hppa_dma_ops->free_consistent(dev, size, vaddr, dma_handle);
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}
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static inline void
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dma_free_noncoherent(struct device *dev, size_t size,
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void *vaddr, dma_addr_t dma_handle)
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{
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hppa_dma_ops->free_consistent(dev, size, vaddr, dma_handle);
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}
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static inline dma_addr_t
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dma_map_single(struct device *dev, void *ptr, size_t size,
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enum dma_data_direction direction)
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{
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return hppa_dma_ops->map_single(dev, ptr, size, direction);
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}
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static inline void
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dma_unmap_single(struct device *dev, dma_addr_t dma_addr, size_t size,
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enum dma_data_direction direction)
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{
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hppa_dma_ops->unmap_single(dev, dma_addr, size, direction);
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}
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static inline int
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dma_map_sg(struct device *dev, struct scatterlist *sg, int nents,
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enum dma_data_direction direction)
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{
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return hppa_dma_ops->map_sg(dev, sg, nents, direction);
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}
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static inline void
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dma_unmap_sg(struct device *dev, struct scatterlist *sg, int nhwentries,
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enum dma_data_direction direction)
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{
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hppa_dma_ops->unmap_sg(dev, sg, nhwentries, direction);
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}
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static inline dma_addr_t
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dma_map_page(struct device *dev, struct page *page, unsigned long offset,
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size_t size, enum dma_data_direction direction)
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{
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return dma_map_single(dev, (page_address(page) + (offset)), size, direction);
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}
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static inline void
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dma_unmap_page(struct device *dev, dma_addr_t dma_address, size_t size,
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enum dma_data_direction direction)
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{
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dma_unmap_single(dev, dma_address, size, direction);
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}
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static inline void
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dma_sync_single_for_cpu(struct device *dev, dma_addr_t dma_handle, size_t size,
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enum dma_data_direction direction)
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{
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if(hppa_dma_ops->dma_sync_single_for_cpu)
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hppa_dma_ops->dma_sync_single_for_cpu(dev, dma_handle, 0, size, direction);
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}
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static inline void
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dma_sync_single_for_device(struct device *dev, dma_addr_t dma_handle, size_t size,
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enum dma_data_direction direction)
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{
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if(hppa_dma_ops->dma_sync_single_for_device)
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hppa_dma_ops->dma_sync_single_for_device(dev, dma_handle, 0, size, direction);
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}
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static inline void
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dma_sync_single_range_for_cpu(struct device *dev, dma_addr_t dma_handle,
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unsigned long offset, size_t size,
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enum dma_data_direction direction)
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{
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if(hppa_dma_ops->dma_sync_single_for_cpu)
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hppa_dma_ops->dma_sync_single_for_cpu(dev, dma_handle, offset, size, direction);
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}
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static inline void
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dma_sync_single_range_for_device(struct device *dev, dma_addr_t dma_handle,
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unsigned long offset, size_t size,
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enum dma_data_direction direction)
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{
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if(hppa_dma_ops->dma_sync_single_for_device)
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hppa_dma_ops->dma_sync_single_for_device(dev, dma_handle, offset, size, direction);
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}
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static inline void
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dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg, int nelems,
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enum dma_data_direction direction)
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{
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if(hppa_dma_ops->dma_sync_sg_for_cpu)
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hppa_dma_ops->dma_sync_sg_for_cpu(dev, sg, nelems, direction);
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}
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static inline void
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dma_sync_sg_for_device(struct device *dev, struct scatterlist *sg, int nelems,
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enum dma_data_direction direction)
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{
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if(hppa_dma_ops->dma_sync_sg_for_device)
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hppa_dma_ops->dma_sync_sg_for_device(dev, sg, nelems, direction);
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}
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static inline int
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dma_supported(struct device *dev, u64 mask)
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{
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return hppa_dma_ops->dma_supported(dev, mask);
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}
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static inline int
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dma_set_mask(struct device *dev, u64 mask)
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{
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if(!dev->dma_mask || !dma_supported(dev, mask))
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return -EIO;
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*dev->dma_mask = mask;
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return 0;
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return hppa_dma_ops;
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}
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static inline void
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dma_cache_sync(struct device *dev, void *vaddr, size_t size,
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enum dma_data_direction direction)
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{
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if(hppa_dma_ops->dma_sync_single_for_cpu)
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if (hppa_dma_ops->sync_single_for_cpu)
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flush_kernel_dcache_range((unsigned long)vaddr, size);
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}
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@ -238,22 +83,6 @@ struct parisc_device;
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void * sba_get_iommu(struct parisc_device *dev);
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#endif
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/* At the moment, we panic on error for IOMMU resource exaustion */
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#define dma_mapping_error(dev, x) 0
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/* This API cannot be supported on PA-RISC */
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static inline int dma_mmap_coherent(struct device *dev,
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struct vm_area_struct *vma, void *cpu_addr,
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dma_addr_t dma_addr, size_t size)
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{
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return -EINVAL;
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}
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static inline int dma_get_sgtable(struct device *dev, struct sg_table *sgt,
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void *cpu_addr, dma_addr_t dma_addr,
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size_t size)
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{
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return -EINVAL;
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}
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#include <asm-generic/dma-mapping-common.h>
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#endif
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@ -40,7 +40,7 @@
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#include <asm/parisc-device.h>
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/* See comments in include/asm-parisc/pci.h */
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struct hppa_dma_ops *hppa_dma_ops __read_mostly;
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struct dma_map_ops *hppa_dma_ops __read_mostly;
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EXPORT_SYMBOL(hppa_dma_ops);
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static struct device root = {
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@ -413,7 +413,8 @@ pcxl_dma_init(void)
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__initcall(pcxl_dma_init);
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static void * pa11_dma_alloc_consistent (struct device *dev, size_t size, dma_addr_t *dma_handle, gfp_t flag)
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static void *pa11_dma_alloc(struct device *dev, size_t size,
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dma_addr_t *dma_handle, gfp_t flag, struct dma_attrs *attrs)
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{
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unsigned long vaddr;
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unsigned long paddr;
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@ -439,7 +440,8 @@ static void * pa11_dma_alloc_consistent (struct device *dev, size_t size, dma_ad
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return (void *)vaddr;
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}
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static void pa11_dma_free_consistent (struct device *dev, size_t size, void *vaddr, dma_addr_t dma_handle)
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static void pa11_dma_free(struct device *dev, size_t size, void *vaddr,
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dma_addr_t dma_handle, struct dma_attrs *attrs)
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{
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int order;
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@ -450,15 +452,20 @@ static void pa11_dma_free_consistent (struct device *dev, size_t size, void *vad
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free_pages((unsigned long)__va(dma_handle), order);
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}
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static dma_addr_t pa11_dma_map_single(struct device *dev, void *addr, size_t size, enum dma_data_direction direction)
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static dma_addr_t pa11_dma_map_page(struct device *dev, struct page *page,
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unsigned long offset, size_t size,
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enum dma_data_direction direction, struct dma_attrs *attrs)
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{
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void *addr = page_address(page) + offset;
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BUG_ON(direction == DMA_NONE);
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flush_kernel_dcache_range((unsigned long) addr, size);
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return virt_to_phys(addr);
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}
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static void pa11_dma_unmap_single(struct device *dev, dma_addr_t dma_handle, size_t size, enum dma_data_direction direction)
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static void pa11_dma_unmap_page(struct device *dev, dma_addr_t dma_handle,
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size_t size, enum dma_data_direction direction,
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struct dma_attrs *attrs)
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{
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BUG_ON(direction == DMA_NONE);
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@ -475,7 +482,9 @@ static void pa11_dma_unmap_single(struct device *dev, dma_addr_t dma_handle, siz
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return;
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}
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static int pa11_dma_map_sg(struct device *dev, struct scatterlist *sglist, int nents, enum dma_data_direction direction)
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static int pa11_dma_map_sg(struct device *dev, struct scatterlist *sglist,
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int nents, enum dma_data_direction direction,
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struct dma_attrs *attrs)
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{
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int i;
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struct scatterlist *sg;
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@ -492,7 +501,9 @@ static int pa11_dma_map_sg(struct device *dev, struct scatterlist *sglist, int n
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return nents;
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}
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static void pa11_dma_unmap_sg(struct device *dev, struct scatterlist *sglist, int nents, enum dma_data_direction direction)
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static void pa11_dma_unmap_sg(struct device *dev, struct scatterlist *sglist,
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int nents, enum dma_data_direction direction,
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struct dma_attrs *attrs)
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{
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int i;
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struct scatterlist *sg;
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@ -509,18 +520,24 @@ static void pa11_dma_unmap_sg(struct device *dev, struct scatterlist *sglist, in
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return;
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}
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static void pa11_dma_sync_single_for_cpu(struct device *dev, dma_addr_t dma_handle, unsigned long offset, size_t size, enum dma_data_direction direction)
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static void pa11_dma_sync_single_for_cpu(struct device *dev,
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dma_addr_t dma_handle, size_t size,
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enum dma_data_direction direction)
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{
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BUG_ON(direction == DMA_NONE);
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flush_kernel_dcache_range((unsigned long) phys_to_virt(dma_handle) + offset, size);
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flush_kernel_dcache_range((unsigned long) phys_to_virt(dma_handle),
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size);
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}
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static void pa11_dma_sync_single_for_device(struct device *dev, dma_addr_t dma_handle, unsigned long offset, size_t size, enum dma_data_direction direction)
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static void pa11_dma_sync_single_for_device(struct device *dev,
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dma_addr_t dma_handle, size_t size,
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enum dma_data_direction direction)
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{
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BUG_ON(direction == DMA_NONE);
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flush_kernel_dcache_range((unsigned long) phys_to_virt(dma_handle) + offset, size);
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flush_kernel_dcache_range((unsigned long) phys_to_virt(dma_handle),
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size);
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}
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static void pa11_dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sglist, int nents, enum dma_data_direction direction)
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@ -545,32 +562,28 @@ static void pa11_dma_sync_sg_for_device(struct device *dev, struct scatterlist *
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flush_kernel_vmap_range(sg_virt(sg), sg->length);
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}
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struct hppa_dma_ops pcxl_dma_ops = {
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struct dma_map_ops pcxl_dma_ops = {
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.dma_supported = pa11_dma_supported,
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.alloc_consistent = pa11_dma_alloc_consistent,
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.alloc_noncoherent = pa11_dma_alloc_consistent,
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.free_consistent = pa11_dma_free_consistent,
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.map_single = pa11_dma_map_single,
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.unmap_single = pa11_dma_unmap_single,
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.alloc = pa11_dma_alloc,
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.free = pa11_dma_free,
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.map_page = pa11_dma_map_page,
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.unmap_page = pa11_dma_unmap_page,
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.map_sg = pa11_dma_map_sg,
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.unmap_sg = pa11_dma_unmap_sg,
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.dma_sync_single_for_cpu = pa11_dma_sync_single_for_cpu,
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.dma_sync_single_for_device = pa11_dma_sync_single_for_device,
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.dma_sync_sg_for_cpu = pa11_dma_sync_sg_for_cpu,
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.dma_sync_sg_for_device = pa11_dma_sync_sg_for_device,
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.sync_single_for_cpu = pa11_dma_sync_single_for_cpu,
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.sync_single_for_device = pa11_dma_sync_single_for_device,
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.sync_sg_for_cpu = pa11_dma_sync_sg_for_cpu,
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.sync_sg_for_device = pa11_dma_sync_sg_for_device,
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};
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static void *fail_alloc_consistent(struct device *dev, size_t size,
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dma_addr_t *dma_handle, gfp_t flag)
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{
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return NULL;
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}
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static void *pa11_dma_alloc_noncoherent(struct device *dev, size_t size,
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dma_addr_t *dma_handle, gfp_t flag)
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static void *pcx_dma_alloc(struct device *dev, size_t size,
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dma_addr_t *dma_handle, gfp_t flag, struct dma_attrs *attrs)
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{
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void *addr;
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if (!dma_get_attr(DMA_ATTR_NON_CONSISTENT, attrs))
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return NULL;
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addr = (void *)__get_free_pages(flag, get_order(size));
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if (addr)
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*dma_handle = (dma_addr_t)virt_to_phys(addr);
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@ -578,24 +591,23 @@ static void *pa11_dma_alloc_noncoherent(struct device *dev, size_t size,
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return addr;
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}
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static void pa11_dma_free_noncoherent(struct device *dev, size_t size,
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void *vaddr, dma_addr_t iova)
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static void pcx_dma_free(struct device *dev, size_t size, void *vaddr,
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dma_addr_t iova, struct dma_attrs *attrs)
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{
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free_pages((unsigned long)vaddr, get_order(size));
|
||||
return;
|
||||
}
|
||||
|
||||
struct hppa_dma_ops pcx_dma_ops = {
|
||||
struct dma_map_ops pcx_dma_ops = {
|
||||
.dma_supported = pa11_dma_supported,
|
||||
.alloc_consistent = fail_alloc_consistent,
|
||||
.alloc_noncoherent = pa11_dma_alloc_noncoherent,
|
||||
.free_consistent = pa11_dma_free_noncoherent,
|
||||
.map_single = pa11_dma_map_single,
|
||||
.unmap_single = pa11_dma_unmap_single,
|
||||
.alloc = pcx_dma_alloc,
|
||||
.free = pcx_dma_free,
|
||||
.map_page = pa11_dma_map_page,
|
||||
.unmap_page = pa11_dma_unmap_page,
|
||||
.map_sg = pa11_dma_map_sg,
|
||||
.unmap_sg = pa11_dma_unmap_sg,
|
||||
.dma_sync_single_for_cpu = pa11_dma_sync_single_for_cpu,
|
||||
.dma_sync_single_for_device = pa11_dma_sync_single_for_device,
|
||||
.dma_sync_sg_for_cpu = pa11_dma_sync_sg_for_cpu,
|
||||
.dma_sync_sg_for_device = pa11_dma_sync_sg_for_device,
|
||||
.sync_single_for_cpu = pa11_dma_sync_single_for_cpu,
|
||||
.sync_single_for_device = pa11_dma_sync_single_for_device,
|
||||
.sync_sg_for_cpu = pa11_dma_sync_sg_for_cpu,
|
||||
.sync_sg_for_device = pa11_dma_sync_sg_for_device,
|
||||
};
|
||||
|
||||
@ -786,18 +786,27 @@ ccio_map_single(struct device *dev, void *addr, size_t size,
|
||||
return CCIO_IOVA(iovp, offset);
|
||||
}
|
||||
|
||||
|
||||
static dma_addr_t
|
||||
ccio_map_page(struct device *dev, struct page *page, unsigned long offset,
|
||||
size_t size, enum dma_data_direction direction,
|
||||
struct dma_attrs *attrs)
|
||||
{
|
||||
return ccio_map_single(dev, page_address(page) + offset, size,
|
||||
direction);
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
* ccio_unmap_single - Unmap an address range from the IOMMU.
|
||||
* ccio_unmap_page - Unmap an address range from the IOMMU.
|
||||
* @dev: The PCI device.
|
||||
* @addr: The start address of the DMA region.
|
||||
* @size: The length of the DMA region.
|
||||
* @direction: The direction of the DMA transaction (to/from device).
|
||||
*
|
||||
* This function implements the pci_unmap_single function.
|
||||
*/
|
||||
static void
|
||||
ccio_unmap_single(struct device *dev, dma_addr_t iova, size_t size,
|
||||
enum dma_data_direction direction)
|
||||
ccio_unmap_page(struct device *dev, dma_addr_t iova, size_t size,
|
||||
enum dma_data_direction direction, struct dma_attrs *attrs)
|
||||
{
|
||||
struct ioc *ioc;
|
||||
unsigned long flags;
|
||||
@ -826,7 +835,7 @@ ccio_unmap_single(struct device *dev, dma_addr_t iova, size_t size,
|
||||
}
|
||||
|
||||
/**
|
||||
* ccio_alloc_consistent - Allocate a consistent DMA mapping.
|
||||
* ccio_alloc - Allocate a consistent DMA mapping.
|
||||
* @dev: The PCI device.
|
||||
* @size: The length of the DMA region.
|
||||
* @dma_handle: The DMA address handed back to the device (not the cpu).
|
||||
@ -834,7 +843,8 @@ ccio_unmap_single(struct device *dev, dma_addr_t iova, size_t size,
|
||||
* This function implements the pci_alloc_consistent function.
|
||||
*/
|
||||
static void *
|
||||
ccio_alloc_consistent(struct device *dev, size_t size, dma_addr_t *dma_handle, gfp_t flag)
|
||||
ccio_alloc(struct device *dev, size_t size, dma_addr_t *dma_handle, gfp_t flag,
|
||||
struct dma_attrs *attrs)
|
||||
{
|
||||
void *ret;
|
||||
#if 0
|
||||
@ -858,7 +868,7 @@ ccio_alloc_consistent(struct device *dev, size_t size, dma_addr_t *dma_handle, g
|
||||
}
|
||||
|
||||
/**
|
||||
* ccio_free_consistent - Free a consistent DMA mapping.
|
||||
* ccio_free - Free a consistent DMA mapping.
|
||||
* @dev: The PCI device.
|
||||
* @size: The length of the DMA region.
|
||||
* @cpu_addr: The cpu address returned from the ccio_alloc_consistent.
|
||||
@ -867,10 +877,10 @@ ccio_alloc_consistent(struct device *dev, size_t size, dma_addr_t *dma_handle, g
|
||||
* This function implements the pci_free_consistent function.
|
||||
*/
|
||||
static void
|
||||
ccio_free_consistent(struct device *dev, size_t size, void *cpu_addr,
|
||||
dma_addr_t dma_handle)
|
||||
ccio_free(struct device *dev, size_t size, void *cpu_addr,
|
||||
dma_addr_t dma_handle, struct dma_attrs *attrs)
|
||||
{
|
||||
ccio_unmap_single(dev, dma_handle, size, 0);
|
||||
ccio_unmap_page(dev, dma_handle, size, 0, NULL);
|
||||
free_pages((unsigned long)cpu_addr, get_order(size));
|
||||
}
|
||||
|
||||
@ -897,7 +907,7 @@ ccio_free_consistent(struct device *dev, size_t size, void *cpu_addr,
|
||||
*/
|
||||
static int
|
||||
ccio_map_sg(struct device *dev, struct scatterlist *sglist, int nents,
|
||||
enum dma_data_direction direction)
|
||||
enum dma_data_direction direction, struct dma_attrs *attrs)
|
||||
{
|
||||
struct ioc *ioc;
|
||||
int coalesced, filled = 0;
|
||||
@ -974,7 +984,7 @@ ccio_map_sg(struct device *dev, struct scatterlist *sglist, int nents,
|
||||
*/
|
||||
static void
|
||||
ccio_unmap_sg(struct device *dev, struct scatterlist *sglist, int nents,
|
||||
enum dma_data_direction direction)
|
||||
enum dma_data_direction direction, struct dma_attrs *attrs)
|
||||
{
|
||||
struct ioc *ioc;
|
||||
|
||||
@ -993,27 +1003,22 @@ ccio_unmap_sg(struct device *dev, struct scatterlist *sglist, int nents,
|
||||
#ifdef CCIO_COLLECT_STATS
|
||||
ioc->usg_pages += sg_dma_len(sglist) >> PAGE_SHIFT;
|
||||
#endif
|
||||
ccio_unmap_single(dev, sg_dma_address(sglist),
|
||||
sg_dma_len(sglist), direction);
|
||||
ccio_unmap_page(dev, sg_dma_address(sglist),
|
||||
sg_dma_len(sglist), direction, NULL);
|
||||
++sglist;
|
||||
}
|
||||
|
||||
DBG_RUN_SG("%s() DONE (nents %d)\n", __func__, nents);
|
||||
}
|
||||
|
||||
static struct hppa_dma_ops ccio_ops = {
|
||||
static struct dma_map_ops ccio_ops = {
|
||||
.dma_supported = ccio_dma_supported,
|
||||
.alloc_consistent = ccio_alloc_consistent,
|
||||
.alloc_noncoherent = ccio_alloc_consistent,
|
||||
.free_consistent = ccio_free_consistent,
|
||||
.map_single = ccio_map_single,
|
||||
.unmap_single = ccio_unmap_single,
|
||||
.alloc = ccio_alloc,
|
||||
.free = ccio_free,
|
||||
.map_page = ccio_map_page,
|
||||
.unmap_page = ccio_unmap_page,
|
||||
.map_sg = ccio_map_sg,
|
||||
.unmap_sg = ccio_unmap_sg,
|
||||
.dma_sync_single_for_cpu = NULL, /* NOP for U2/Uturn */
|
||||
.dma_sync_single_for_device = NULL, /* NOP for U2/Uturn */
|
||||
.dma_sync_sg_for_cpu = NULL, /* ditto */
|
||||
.dma_sync_sg_for_device = NULL, /* ditto */
|
||||
};
|
||||
|
||||
#ifdef CONFIG_PROC_FS
|
||||
@ -1062,7 +1067,7 @@ static int ccio_proc_info(struct seq_file *m, void *p)
|
||||
ioc->msingle_calls, ioc->msingle_pages,
|
||||
(int)((ioc->msingle_pages * 1000)/ioc->msingle_calls));
|
||||
|
||||
/* KLUGE - unmap_sg calls unmap_single for each mapped page */
|
||||
/* KLUGE - unmap_sg calls unmap_page for each mapped page */
|
||||
min = ioc->usingle_calls - ioc->usg_calls;
|
||||
max = ioc->usingle_pages - ioc->usg_pages;
|
||||
seq_printf(m, "pci_unmap_single: %8ld calls %8ld pages (avg %d/1000)\n",
|
||||
|
||||
@ -780,8 +780,18 @@ sba_map_single(struct device *dev, void *addr, size_t size,
|
||||
}
|
||||
|
||||
|
||||
static dma_addr_t
|
||||
sba_map_page(struct device *dev, struct page *page, unsigned long offset,
|
||||
size_t size, enum dma_data_direction direction,
|
||||
struct dma_attrs *attrs)
|
||||
{
|
||||
return sba_map_single(dev, page_address(page) + offset, size,
|
||||
direction);
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
* sba_unmap_single - unmap one IOVA and free resources
|
||||
* sba_unmap_page - unmap one IOVA and free resources
|
||||
* @dev: instance of PCI owned by the driver that's asking.
|
||||
* @iova: IOVA of driver buffer previously mapped.
|
||||
* @size: number of bytes mapped in driver buffer.
|
||||
@ -790,8 +800,8 @@ sba_map_single(struct device *dev, void *addr, size_t size,
|
||||
* See Documentation/DMA-API-HOWTO.txt
|
||||
*/
|
||||
static void
|
||||
sba_unmap_single(struct device *dev, dma_addr_t iova, size_t size,
|
||||
enum dma_data_direction direction)
|
||||
sba_unmap_page(struct device *dev, dma_addr_t iova, size_t size,
|
||||
enum dma_data_direction direction, struct dma_attrs *attrs)
|
||||
{
|
||||
struct ioc *ioc;
|
||||
#if DELAYED_RESOURCE_CNT > 0
|
||||
@ -858,15 +868,15 @@ sba_unmap_single(struct device *dev, dma_addr_t iova, size_t size,
|
||||
|
||||
|
||||
/**
|
||||
* sba_alloc_consistent - allocate/map shared mem for DMA
|
||||
* sba_alloc - allocate/map shared mem for DMA
|
||||
* @hwdev: instance of PCI owned by the driver that's asking.
|
||||
* @size: number of bytes mapped in driver buffer.
|
||||
* @dma_handle: IOVA of new buffer.
|
||||
*
|
||||
* See Documentation/DMA-API-HOWTO.txt
|
||||
*/
|
||||
static void *sba_alloc_consistent(struct device *hwdev, size_t size,
|
||||
dma_addr_t *dma_handle, gfp_t gfp)
|
||||
static void *sba_alloc(struct device *hwdev, size_t size, dma_addr_t *dma_handle,
|
||||
gfp_t gfp, struct dma_attrs *attrs)
|
||||
{
|
||||
void *ret;
|
||||
|
||||
@ -888,7 +898,7 @@ static void *sba_alloc_consistent(struct device *hwdev, size_t size,
|
||||
|
||||
|
||||
/**
|
||||
* sba_free_consistent - free/unmap shared mem for DMA
|
||||
* sba_free - free/unmap shared mem for DMA
|
||||
* @hwdev: instance of PCI owned by the driver that's asking.
|
||||
* @size: number of bytes mapped in driver buffer.
|
||||
* @vaddr: virtual address IOVA of "consistent" buffer.
|
||||
@ -897,10 +907,10 @@ static void *sba_alloc_consistent(struct device *hwdev, size_t size,
|
||||
* See Documentation/DMA-API-HOWTO.txt
|
||||
*/
|
||||
static void
|
||||
sba_free_consistent(struct device *hwdev, size_t size, void *vaddr,
|
||||
dma_addr_t dma_handle)
|
||||
sba_free(struct device *hwdev, size_t size, void *vaddr,
|
||||
dma_addr_t dma_handle, struct dma_attrs *attrs)
|
||||
{
|
||||
sba_unmap_single(hwdev, dma_handle, size, 0);
|
||||
sba_unmap_page(hwdev, dma_handle, size, 0, NULL);
|
||||
free_pages((unsigned long) vaddr, get_order(size));
|
||||
}
|
||||
|
||||
@ -933,7 +943,7 @@ int dump_run_sg = 0;
|
||||
*/
|
||||
static int
|
||||
sba_map_sg(struct device *dev, struct scatterlist *sglist, int nents,
|
||||
enum dma_data_direction direction)
|
||||
enum dma_data_direction direction, struct dma_attrs *attrs)
|
||||
{
|
||||
struct ioc *ioc;
|
||||
int coalesced, filled = 0;
|
||||
@ -1016,7 +1026,7 @@ sba_map_sg(struct device *dev, struct scatterlist *sglist, int nents,
|
||||
*/
|
||||
static void
|
||||
sba_unmap_sg(struct device *dev, struct scatterlist *sglist, int nents,
|
||||
enum dma_data_direction direction)
|
||||
enum dma_data_direction direction, struct dma_attrs *attrs)
|
||||
{
|
||||
struct ioc *ioc;
|
||||
#ifdef ASSERT_PDIR_SANITY
|
||||
@ -1040,7 +1050,8 @@ sba_unmap_sg(struct device *dev, struct scatterlist *sglist, int nents,
|
||||
|
||||
while (sg_dma_len(sglist) && nents--) {
|
||||
|
||||
sba_unmap_single(dev, sg_dma_address(sglist), sg_dma_len(sglist), direction);
|
||||
sba_unmap_page(dev, sg_dma_address(sglist), sg_dma_len(sglist),
|
||||
direction, NULL);
|
||||
#ifdef SBA_COLLECT_STATS
|
||||
ioc->usg_pages += ((sg_dma_address(sglist) & ~IOVP_MASK) + sg_dma_len(sglist) + IOVP_SIZE - 1) >> PAGE_SHIFT;
|
||||
ioc->usingle_calls--; /* kluge since call is unmap_sg() */
|
||||
@ -1058,19 +1069,14 @@ sba_unmap_sg(struct device *dev, struct scatterlist *sglist, int nents,
|
||||
|
||||
}
|
||||
|
||||
static struct hppa_dma_ops sba_ops = {
|
||||
static struct dma_map_ops sba_ops = {
|
||||
.dma_supported = sba_dma_supported,
|
||||
.alloc_consistent = sba_alloc_consistent,
|
||||
.alloc_noncoherent = sba_alloc_consistent,
|
||||
.free_consistent = sba_free_consistent,
|
||||
.map_single = sba_map_single,
|
||||
.unmap_single = sba_unmap_single,
|
||||
.alloc = sba_alloc,
|
||||
.free = sba_free,
|
||||
.map_page = sba_map_page,
|
||||
.unmap_page = sba_unmap_page,
|
||||
.map_sg = sba_map_sg,
|
||||
.unmap_sg = sba_unmap_sg,
|
||||
.dma_sync_single_for_cpu = NULL,
|
||||
.dma_sync_single_for_device = NULL,
|
||||
.dma_sync_sg_for_cpu = NULL,
|
||||
.dma_sync_sg_for_device = NULL,
|
||||
};
|
||||
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user