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  18. 17 Oct, 2007 1 commit
    • Matthew Wilcox's avatar
      Update DMA-mapping documentation · d1482f40
      Matthew Wilcox authored
      A couple of updates haven't considered whether the documentation makes
      sense as a whole any more.  Three changes here:
      
       - Remove the reference to the "DAC Addressing for Address Space Hungry
         Devices" section which was deleted by Jan Beulich.
       - Remove the comment about DMA_24BIT_MASK which became obsolete when
         Tobias Klauser changed the code to actually use DMA_24BIT_MASK.
       - Remove the section "64-bit DMA and DAC cycle support" since it's
         fully covered above, and contains a reference to the section deleted
         by Jan.
      Signed-off-by: default avatarMatthew Wilcox <[email protected]>
      Cc: "David S. Miller" <[email protected]>
      Signed-off-by: default avatarAndrew Morton <[email protected]>
      Signed-off-by: default avatarLinus Torvalds <[email protected]>
      d1482f40
  19. 16 Oct, 2007 2 commits
  20. 11 Jul, 2007 1 commit
  21. 03 Oct, 2006 2 commits
  22. 15 Jul, 2006 1 commit
  23. 14 Apr, 2006 1 commit
    • David Brownell's avatar
      [PATCH] dma doc updates · 21440d31
      David Brownell authored
      This updates the DMA API documentation to address a few issues:
      
       - The dma_map_sg() call results are used like pci_map_sg() results:
         using sg_dma_address() and sg_dma_len().  That's not wholly obvious
         to folk reading _only_ the "new" DMA-API.txt writeup.
      
       - Buffers allocated by dma_alloc_coherent() may not be completely
         free of coherency concerns ... some CPUs also have write buffers
         that may need to be flushed.
      
       - Cacheline coherence issues are now mentioned as being among issues
         which affect dma buffers, and complicate/prevent using of static and
         (especially) stack based buffers with the DMA calls.
      
      I don't think many drivers currently need to worry about flushing write
      buffers, but I did hit it with one SOC using external SDRAM for DMA
      descriptors:  without explicit writebuffer flushing, the on-chip DMA
      controller accessed descriptors before the CPU completed the writes.
      Signed-off-by: default avatarDavid Brownell <[email protected]>
      Signed-off-by: default avatarGreg Kroah-Hartman <[email protected]>
      21440d31
  24. 11 Apr, 2006 1 commit
  25. 28 Mar, 2006 1 commit
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  27. 16 Apr, 2005 1 commit
    • Linus Torvalds's avatar
      Linux-2.6.12-rc2 · 1da177e4
      Linus Torvalds authored
      Initial git repository build. I'm not bothering with the full history,
      even though we have it. We can create a separate "historical" git
      archive of that later if we want to, and in the meantime it's about
      3.2GB when imported into git - space that would just make the early
      git days unnecessarily complicated, when we don't have a lot of good
      infrastructure for it.
      
      Let it rip!
      1da177e4