[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] [GIT PULL] xen: swiotlb support for Xen dom0
Hi Ingo, This branch adds the swiotlb hooks for Xen dom0. We use swiotlb to handle various device drivers which assume that multipage DMA transfers which are contigious in kernel memory are also contigious in machine memory (mostly lower-performance devices, as high-performance ones already do a good job of scatter-gather). Following Fujita's suggestion, these changes remove a lot of the placeholder stubs in arch/x86/kernel/pci-swiotlb.c and moves them into the Xen-specific arch/x86/xen/pci-swiotlb.c. (It still relies on overriding the weak functions defined in lib/swiotlb.c.) The following changes since commit 2af252ab26150b4411889c9eaf1af4c5bf03de78: Jeremy Fitzhardinge (1): xen: checkpatch cleanups are available in the git repository at: git://git.kernel.org/pub/scm/linux/kernel/git/jeremy/xen.git xen-tip/for-ingo/dom0/swiotlb Ian Campbell (4): xen swiotlb: fixup swiotlb is chunks smaller than MAX_CONTIG_ORDER xen: add hooks for mapping phys<->bus addresses in swiotlb xen/swiotlb: add swiotlb_arch_range_needs_mapping hook for xen xen: enable swiotlb for xen domain 0. Jeremy Fitzhardinge (5): xen: make sure swiotlb allocation is physically contigious swiotlb: use swiotlb_alloc_boot to allocate emergency pool xen/swiotlb: improve comment on gfp flags in xen_alloc_coherent() xen/swiotlb: add sync functions xen/swiotlb: update to new new dma_ops arch/x86/kernel/pci-swiotlb.c | 30 ++-------- arch/x86/xen/Kconfig | 1 + arch/x86/xen/Makefile | 1 + arch/x86/xen/pci-swiotlb.c | 53 ++++++++++++++++++ drivers/pci/xen-iommu.c | 123 +++++++++++++++++++++++++++++------------ include/xen/swiotlb.h | 18 ++++++ lib/swiotlb.c | 3 +- 7 files changed, 168 insertions(+), 61 deletions(-) create mode 100644 arch/x86/xen/pci-swiotlb.c create mode 100644 include/xen/swiotlb.h Thanks, J _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
|
Lists.xenproject.org is hosted with RackSpace, monitoring our |