From: Andrii Anisov <andrii_ani...@epam.com> Some drivers need additional dma ops to be provided by xen swiotlb. Because common operations implementation came from x86 world and does not suite ARM needs we have to provide needed XEN SWIOTLB for ARM callbacks.
dma_mmap patch is a port of an antique and lost patch discussed here: http://marc.info/?l=xen-devel&m=139695901430667&w=4 Changes in V4: - No functional changes - '#ifdef DEBUG' is replaced with '#if 0' for a debug code because Konrad insisted - Added more comments for the functions added and for the debug code - fixed code alignment. Changes in V3: - dma ops are moved from ARM specific to generic code - runtime operation verified for arm64 with LK 4.9 - compilation verified for arm, arm64, x86 with the current LK master HEAD 566cf877a1fcb6d6dc0126b076aad062054c2637 Changes in V2: - patches are rebased and checked for compilation for x86, arm, arm64 with the current LK master HEAD 83346fbc07d267de777e2597552f785174ad0373 Andrii Anisov (1): swiotlb-xen: implement xen_swiotlb_get_sgtable callback Stefano Stabellini (1): swiotlb-xen: implement xen_swiotlb_dma_mmap callback arch/arm/xen/mm.c | 2 ++ drivers/xen/swiotlb-xen.c | 47 +++++++++++++++++++++++++++++++++++++++++++++++ include/xen/swiotlb-xen.h | 11 +++++++++++ 3 files changed, 60 insertions(+) -- 2.7.4 _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org https://lists.xen.org/xen-devel