)]}'
{
  "commit": "4fc665b88a79a45bae8bbf3a05563c27c7337c3d",
  "tree": "ca668c2fab7c3a4d62b92174f4a5fcae2625cdd1",
  "parents": [
    "8fae0353247530d2124b2419052fa6120462fa99"
  ],
  "author": {
    "name": "Becky Bruce",
    "email": "becky.bruce@freescale.com",
    "time": "Fri Sep 12 10:34:46 2008 +0000"
  },
  "committer": {
    "name": "Kumar Gala",
    "email": "galak@kernel.crashing.org",
    "time": "Wed Sep 24 16:26:45 2008 -0500"
  },
  "message": "powerpc: Merge 32 and 64-bit dma code\n\nWe essentially adopt the 64-bit dma code, with some changes to support\n32-bit systems, including HIGHMEM.  dma functions on 32-bit are now\ninvoked via accessor functions which call the correct op for a device based\non archdata dma_ops.  If there is no archdata dma_ops, this defaults\nto dma_direct_ops.\n\nIn addition, the dma_map/unmap_page functions are added to dma_ops\nbecause we can\u0027t just fall back on map/unmap_single when HIGHMEM is\nenabled. In the case of dma_direct_*, we stop using map/unmap_single\nand just use the page version - this saves a lot of ugly\nifdeffing.  We leave map/unmap_single in the dma_ops definition,\nthough, because they are needed by the iommu code, which does not\nimplement map/unmap_page.  Ideally, going forward, we will completely\neliminate map/unmap_single and just have map/unmap_page, if it\u0027s\nworkable for 64-bit.\n\nSigned-off-by: Becky Bruce \u003cbecky.bruce@freescale.com\u003e\nSigned-off-by: Kumar Gala \u003cgalak@kernel.crashing.org\u003e\n",
  "tree_diff": [
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      "new_path": "arch/powerpc/include/asm/dma-mapping.h"
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}