Messages in this thread | | | Date | Sun, 16 Dec 2012 12:40:15 -0500 | From | Konrad Rzeszutek Wilk <> | Subject | [GIT PULL] (swiotlb) stable/for-linus-3.8-rc0-tag |
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Hey Linus,
Please git pull the following tag:
git pull git://git.kernel.org/pub/scm/linux/kernel/git/konrad/swiotlb.git stable/for-linus-3.8-rc0-tag
which has one feature in the SWIOTLB code. That is to remove the multitude of phys_to_virt/virt_to_phys calls and instead operate on the physical addresses instead of virtual in many of the internal functions. This does provide a speed up in interrupt handlers that do DMA operations and use SWIOTLB.
Please pull!
drivers/xen/swiotlb-xen.c | 25 ++-- include/linux/swiotlb.h | 20 ++-- lib/swiotlb.c | 269 +++++++++++++++++++++++---------------------- 3 files changed, 163 insertions(+), 151 deletions(-)
Alexander Duyck (7): swiotlb: Make io_tlb_end a physical address instead of a virtual one swiotlb: Make io_tlb_start a physical address instead of a virtual one swiotlb: Make io_tlb_overflow_buffer a physical address swiotlb: Return physical addresses when calling swiotlb_tbl_map_single swiotlb: Use physical addresses for swiotlb_tbl_unmap_single swiotlb: Use physical addresses instead of virtual in swiotlb_tbl_sync_single swiotlb: Do not export swiotlb_bounce since there are no external consumers
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