lkml.org 
[lkml]   [2013]   [Nov]   [12]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
Subject[PATCH 0/2] swiotlb-xen fixes
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


\
 
 \ /
  Last update: 2013-11-12 15:41    [W:0.885 / U:0.064 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site