On Mon, 2009-06-01 at 16:32 +0100, Ian Campbell wrote: > This series: > * removes the swiotlb_(arch_)_phys_to_bus and bus_to_phys __weak > hooks, replacing them with an architecture-specific phys_to_dma and > dma_to_phys interface. These are used by both PowerPC and Xen to > provide the correct mapping from physical to DMA addresses. > * removes the swiotlb_address_needs_mapping and > swiotlb_range_needs_mapping __weak functions as well as > is_buffer_dma_capable (which should never have been a generic > function). All three are replaced by a single architecture-specific > interface which meets the needs of both PowerPC and Xen. > * removes the swiotlb_virt_to_bus __weak function and replaces it with > a CONFIG_HIGHMEM compatible version when high memory is in use. This > is needed for 32 bit PowerPC swiotlb support. > * removes the swiotlb_alloc* __weak functions and replaces them with > swiotlb_init_with_buffer which allows the use of a caller allocated > buffer (and emergency pool). > > I think these new interfaces are cleaner than the existing __weak > functions and isolate the swiotlb code from architecture internals. > > This series does not contain any Xen or PowerPC specific changes, those > will follow in separate postings. The complete patchset has been boot > tested under Xen and native-x86 and compiled for IA64 and PowerPC > > Changes since v1: > - Fixed compile error in swiotlb_dma_to_virt highmem version. Moved > #ifdef into function to avoid prototype drift. > - checkpatch fixes. > - missed a swiotlb_arch_range_needs_mapping in swiotlb.h and x86 > pci-swiotlb.c and swiotlb_bus_to_phys/phys_to_bus implementations in > x86. > - additionally replaced __weak swiotlb_alloc* with > swiotlb_init_with_buffer. Looks like I was only CCed on part of them... it's not very handy for me as I end up having some of the patches in one folder and some elsewhere :-) I don't have a firm objection but they will have to go through Becky and Kumar since they are the one who need swiotlb for their embedded platforms. Cheers, Ben. -- To unsubscribe from this list: send the line "unsubscribe linux-ia64" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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