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dma-mapping updates for 5.4:

Browse source 
- add dma-mapping and block layer helpers to take care of IOMMU
    merging for mmc plus subsequent fixups (Yoshihiro Shimoda)
  - rework handling of the pgprot bits for remapping (me)
  - take care of the dma direct infrastructure for swiotlb-xen (me)
  - improve the dma noncoherent remapping infrastructure (me)
  - better defaults for ->mmap, ->get_sgtable and ->get_required_mask (me)
  - cleanup mmaping of coherent DMA allocations (me)
  - various misc cleanups (Andy Shevchenko, me)
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Merge tag 'dma-mapping-5.4' of git://git.infradead.org/users/hch/dma-mapping

Pull dma-mapping updates from Christoph Hellwig:

 - add dma-mapping and block layer helpers to take care of IOMMU merging
   for mmc plus subsequent fixups (Yoshihiro Shimoda)

 - rework handling of the pgprot bits for remapping (me)

 - take care of the dma direct infrastructure for swiotlb-xen (me)

 - improve the dma noncoherent remapping infrastructure (me)

 - better defaults for ->mmap, ->get_sgtable and ->get_required_mask
   (me)

 - cleanup mmaping of coherent DMA allocations (me)

 - various misc cleanups (Andy Shevchenko, me)

* tag 'dma-mapping-5.4' of git://git.infradead.org/users/hch/dma-mapping: (41 commits)
  mmc: renesas_sdhi_internal_dmac: Add MMC_CAP2_MERGE_CAPABLE
  mmc: queue: Fix bigger segments usage
  arm64: use asm-generic/dma-mapping.h
  swiotlb-xen: merge xen_unmap_single into xen_swiotlb_unmap_page
  swiotlb-xen: simplify cache maintainance
  swiotlb-xen: use the same foreign page check everywhere
  swiotlb-xen: remove xen_swiotlb_dma_mmap and xen_swiotlb_dma_get_sgtable
  xen: remove the exports for xen_{create,destroy}_contiguous_region
  xen/arm: remove xen_dma_ops
  xen/arm: simplify dma_cache_maint
  xen/arm: use dev_is_dma_coherent
  xen/arm: consolidate page-coherent.h
  xen/arm: use dma-noncoherent.h calls for xen-swiotlb cache maintainance
  arm: remove wrappers for the generic dma remap helpers
  dma-mapping: introduce a dma_common_find_pages helper
  dma-mapping: always use VM_DMA_COHERENT for generic DMA remap
  vmalloc: lift the arm flag for coherent mappings to common code
  dma-mapping: provide a better default ->get_required_mask
  dma-mapping: remove the dma_declare_coherent_memory export
  remoteproc: don't allow modular build
  ...
This commit is contained in:
Linus Torvalds 2019-09-19 13:27:23 -07:00
commit 671df18953
73 changed files with 397 additions and 674 deletions
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2
include/linux/blkdev.h
View file

@ -1110,6 +1110,8 @@ extern void blk_queue_rq_timeout(struct request_queue *, unsigned int);
extern void blk_queue_write_cache(struct request_queue *q, bool enabled, bool fua);
extern void blk_queue_required_elevator_features(struct request_queue *q,
unsigned int features);
extern bool blk_queue_can_use_dma_map_merging(struct request_queue *q,
struct device *dev);
/*
* Number of physical segments as sent to the device.