Messages in this thread | | | Date | Wed, 10 Sep 2008 11:34:30 +0200 | From | Ingo Molnar <> | Subject | Re: [PATCH 0/4] add a helper function, is_buffer_dma_capable() |
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* Joerg Roedel <joerg.roedel@amd.com> wrote:
> On Wed, Sep 10, 2008 at 01:06:45AM +0900, FUJITA Tomonori wrote: > > This patchset adds a trivial helper function, is_buffer_dma_capable() > > and cleans up some IOMMU implementations. This function is to to see > > if a memory region is DMA-capable or not with the arguments, the > > dma_mask (or coherent_dma_mask) of a device and the address and size > > of a memory region. It's useful for IOMMUs that don't do virtual > > mappings at all times. > > > > The patch for swiotlb is a bug fix (the rest are just > > cleanups). Currently, swiotlb doesn't take account of the size of a > > memory region to see if if the memory region is DMA-capable. > > Good idea. This patchset increases the readability of the software > dma-api implementations. > > Acked-by: Joerg Roedel <joerg.roedel@amd.com>
applied to tip/x86/iommu:
2797982: swiotlb: convert swiotlb to use is_buffer_dma_capable helper function 49fbf4e: x86: convert pci-nommu to use is_buffer_dma_capable helper function ac4ff65: x86: convert gart to use is_buffer_dma_capable helper function 636dc67: add is_buffer_dma_capable helper function
thanks!
Ingo
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