Eric Lee / smarc-fsl-linux-kernel

22 Jul, 2008

1 commit

  • 1ed6af734   powerpc/cell: Add DMA_ATTR_WEAK_ORDERING dma attribute and use in Cell IOMMU code ... Browse Code »

    Introduce a new dma attriblue DMA_ATTR_WEAK_ORDERING to use weak ordering
    on DMA mappings in the Cell processor. Add the code to the Cell's IOMMU
    implementation to use this code.

    Dynamic mappings can be weakly or strongly ordered on an individual basis
    but the fixed mapping has to be either completely strong or completely weak.
    This is currently decided by a kernel boot option (pass iommu_fixed=weak
    for a weakly ordered fixed linear mapping, strongly ordered is the default).

    Signed-off-by: Mark Nelson
    Signed-off-by: Arnd Bergmann
    Signed-off-by: Benjamin Herrenschmidt

    Mark Nelson
     

29 Apr, 2008

1 commit

  • a75b0a2f6   dma: document dma_*map*_attrs() interfaces ... Browse Code »

    Document the new dma_*map*_attrs() functions.

    [markn@au1.ibm.com: fix up for dma-add-dma_map_attrs-interfaces and update docs]
    Signed-off-by: Arthur Kepner
    Acked-by: David S. Miller
    Cc: Tony Luck
    Cc: Jesse Barnes
    Cc: Jes Sorensen
    Cc: Randy Dunlap
    Cc: Roland Dreier
    Cc: James Bottomley
    Cc: Benjamin Herrenschmidt
    Cc: Grant Grundler
    Cc: Michael Ellerman
    Signed-off-by: Mark Nelson
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Arthur Kepner