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dma-mapping updates for 5.12:

Browse source 
- add support to emulate processing delays in the DMA API benchmark
    selftest (Barry Song)
  - remove support for non-contiguous noncoherent allocations,
    which aren't used and will be replaced by a different API
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Merge tag 'dma-mapping-5.12' of git://git.infradead.org/users/hch/dma-mapping

Pull dma-mapping updates from Christoph Hellwig:

 - add support to emulate processing delays in the DMA API benchmark
   selftest (Barry Song)

 - remove support for non-contiguous noncoherent allocations, which
   aren't used and will be replaced by a different API

* tag 'dma-mapping-5.12' of git://git.infradead.org/users/hch/dma-mapping:
  dma-mapping: remove the {alloc,free}_noncoherent methods
  dma-mapping: benchmark: pretend DMA is transmitting
This commit is contained in:
Linus Torvalds 2021-02-24 09:54:24 -08:00
commit a4dec04c7f
7 changed files with 65 additions and 126 deletions
Download patch file Download diff file Expand all files Collapse all files

5
include/linux/dma-map-ops.h
View file

@ -22,11 +22,6 @@ struct dma_map_ops {
gfp_t gfp);
void (*free_pages)(struct device *dev, size_t size, struct page *vaddr,
dma_addr_t dma_handle, enum dma_data_direction dir);
void *(*alloc_noncoherent)(struct device *dev, size_t size,
dma_addr_t *dma_handle, enum dma_data_direction dir,
gfp_t gfp);
void (*free_noncoherent)(struct device *dev, size_t size, void *vaddr,
dma_addr_t dma_handle, enum dma_data_direction dir);
int (*mmap)(struct device *, struct vm_area_struct *,
void *, dma_addr_t, size_t, unsigned long attrs);