aboutsummaryrefslogtreecommitdiff
path: root/include/asm-sparc64/io.h
diff options
context:
space:
mode:
authorDavid S. Miller <davem@huronp11.davemloft.net>2008-02-06 03:50:26 -0800
committerDavid S. Miller <davem@davemloft.net>2008-02-06 04:12:25 -0800
commit38192d52f159bc06b7f523800c10b583cdd661d5 (patch)
tree4cf695d583c0a657133642c0299cbfa536e25663 /include/asm-sparc64/io.h
parentb3ff81dd8ae29ec431f6cc91aff601a51ef6fb8c (diff)
[SPARC64]: Temporarily remove IOMMU merging code.
Changeset fde6a3c82d67f592eb587be4d12222b0ae6d4321 ("iommu sg merging: sparc64: make iommu respect the segment size limits") broke sparc64 because whilst it added the segment limiting code to the first pass of SG mapping (in prepare_sg()) it did not add matching code to the second pass handling (in fill_sg()) As a result the two passes disagree where the segment boundaries should be, resulting in OOPSes, DMA corruption, and corrupted superblocks. Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/asm-sparc64/io.h')
-rw-r--r--include/asm-sparc64/io.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/include/asm-sparc64/io.h b/include/asm-sparc64/io.h
index c299b853b5b..b6ece223562 100644
--- a/include/asm-sparc64/io.h
+++ b/include/asm-sparc64/io.h
@@ -16,7 +16,7 @@
/* BIO layer definitions. */
extern unsigned long kern_base, kern_size;
#define page_to_phys(page) (page_to_pfn(page) << PAGE_SHIFT)
-#define BIO_VMERGE_BOUNDARY 8192
+#define BIO_VMERGE_BOUNDARY 0
static inline u8 _inb(unsigned long addr)
{