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Merge tag 'dma-mapping-4.20' of git://git.infradead.org/users/hch/dma-mapping

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Pull dma mapping updates from Christoph Hellwig:
 "First batch of dma-mapping changes for 4.20.

  There will be a second PR as some big changes were only applied just
  before the end of the merge window, and I want to give them a few more
  days in linux-next.

  Summary:

   - mostly more consolidation of the direct mapping code, including
     converting over hexagon, and merging the coherent and non-coherent
     code into a single dma_map_ops instance (me)

   - cleanups for the dma_configure/dma_unconfigure callchains (me)

   - better handling of dma_masks in odd setups (me, Alexander Duyck)

   - better debugging of passing vmalloc address to the DMA API (Stephen
     Boyd)

   - CMA command line parsing fix (He Zhe)"

* tag 'dma-mapping-4.20' of git://git.infradead.org/users/hch/dma-mapping: (27 commits)
  dma-direct: respect DMA_ATTR_NO_WARN
  dma-mapping: translate __GFP_NOFAIL to DMA_ATTR_NO_WARN
  dma-direct: document the zone selection logic
  dma-debug: Check for drivers mapping invalid addresses in dma_map_single()
  dma-direct: fix return value of dma_direct_supported
  dma-mapping: move dma_default_get_required_mask under ifdef
  dma-direct: always allow dma mask <= physiscal memory size
  dma-direct: implement complete bus_dma_mask handling
  dma-direct: refine dma_direct_alloc zone selection
  dma-direct: add an explicit dma_direct_get_required_mask
  dma-mapping: make the get_required_mask method available unconditionally
  unicore32: remove swiotlb support
  Revert "dma-mapping: clear dev->dma_ops in arch_teardown_dma_ops"
  dma-mapping: support non-coherent devices in dma_common_get_sgtable
  dma-mapping: consolidate the dma mmap implementations
  dma-mapping: merge direct and noncoherent ops
  dma-mapping: move the dma_coherent flag to struct device
  MIPS: don't select DMA_MAYBE_COHERENT from DMA_PERDEV_COHERENT
  dma-mapping: add the missing ARCH_HAS_SYNC_DMA_FOR_CPU_ALL declaration
  dma-mapping: fix panic caused by passing empty cma command line argument
  ...
This commit is contained in:
Linus Torvalds
2018-10-22 18:16:03 +01:00
parent 13775dacca b9fd04262a
commit cff229491a
66 changed files with 423 additions and 701 deletions
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6
arch/x86/kernel/amd_gart_64.c
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@@ -482,7 +482,7 @@ gart_alloc_coherent(struct device *dev, size_t size, dma_addr_t *dma_addr,
{
void *vaddr;
vaddr = dma_direct_alloc(dev, size, dma_addr, flag, attrs);
vaddr = dma_direct_alloc_pages(dev, size, dma_addr, flag, attrs);
if (!vaddr ||
!force_iommu || dev->coherent_dma_mask <= DMA_BIT_MASK(24))
return vaddr;
@@ -494,7 +494,7 @@ gart_alloc_coherent(struct device *dev, size_t size, dma_addr_t *dma_addr,
goto out_free;
return vaddr;
out_free:
dma_direct_free(dev, size, vaddr, *dma_addr, attrs);
dma_direct_free_pages(dev, size, vaddr, *dma_addr, attrs);
return NULL;
}
@@ -504,7 +504,7 @@ gart_free_coherent(struct device *dev, size_t size, void *vaddr,
dma_addr_t dma_addr, unsigned long attrs)
{
gart_unmap_page(dev, dma_addr, size, DMA_BIDIRECTIONAL, 0);
dma_direct_free(dev, size, vaddr, dma_addr, attrs);
dma_direct_free_pages(dev, size, vaddr, dma_addr, attrs);
}
static int gart_mapping_error(struct device *dev, dma_addr_t dma_addr)