Messages in this thread | | | Date | Tue, 12 Nov 2013 14:11:21 +0000 | From | Stefano Stabellini <> | Subject | [PATCH 0/2] swiotlb-xen fixes |
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Hi all, this patch series is just a couple of fixes for swiotlb-xen.
In particular the slow path (bouncing on the swiotlb buffer for dma operations) on ARM has two problems, each of them fixed by a separate patch:
- a xen_dma_map_page call is missing in xen_swiotlb_map_sg_attrs;
- dma_capable often fails on ARM because devices don't set the dma_mask correctly. This causes swiotlb-xen to take the slow path, and that is bad enough, but in xen_swiotlb_map_page also causes the function to return an error an fail.
Stefano Stabellini (2): swiotlb-xen: add missing xen_dma_map_page call swiotlb-xen: xen_swiotlb_map_page: do not error out if dma_capable fails
drivers/xen/swiotlb-xen.c | 12 +++++------- 1 files changed, 5 insertions(+), 7 deletions(-)
git://git.kernel.org/pub/scm/linux/kernel/git/sstabellini/xen.git for-linus-3.13-fixes
Cheers,
Stefano
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