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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2011-06-09 12:52:44 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-06-09 12:52:44 -0700 |
| commit | 361932bf84657b5dc0779046c751f06998c0d81f (patch) | |
| tree | d39ea8018bd35db9701d343411865529d89255a9 /drivers | |
| parent | 90494cc567319cd53574306f3b94fb3c7ff8fe88 (diff) | |
| parent | 5f98ecdbcef1920323d8777c0ba55dbd4335d3cf (diff) | |
| download | lwn-361932bf84657b5dc0779046c751f06998c0d81f.tar.gz lwn-361932bf84657b5dc0779046c751f06998c0d81f.zip | |
Merge branch 'stable/xen-swiotlb.bugfix' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/swiotlb-2.6
* 'stable/xen-swiotlb.bugfix' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/swiotlb-2.6:
swiotlb: Export swioltb_nr_tbl and utilize it as appropiate.
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/xen/swiotlb-xen.c | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/drivers/xen/swiotlb-xen.c b/drivers/xen/swiotlb-xen.c index 65ea21a97492..6e8c15a23201 100644 --- a/drivers/xen/swiotlb-xen.c +++ b/drivers/xen/swiotlb-xen.c @@ -147,9 +147,15 @@ void __init xen_swiotlb_init(int verbose) { unsigned long bytes; int rc; - - xen_io_tlb_nslabs = (64 * 1024 * 1024 >> IO_TLB_SHIFT); - xen_io_tlb_nslabs = ALIGN(xen_io_tlb_nslabs, IO_TLB_SEGSIZE); + unsigned long nr_tbl; + + nr_tbl = swioltb_nr_tbl(); + if (nr_tbl) + xen_io_tlb_nslabs = nr_tbl; + else { + xen_io_tlb_nslabs = (64 * 1024 * 1024 >> IO_TLB_SHIFT); + xen_io_tlb_nslabs = ALIGN(xen_io_tlb_nslabs, IO_TLB_SEGSIZE); + } bytes = xen_io_tlb_nslabs << IO_TLB_SHIFT; |