diff options
| author | David Miller <davem@davemloft.net> | 2006-06-20 00:44:27 -0700 |
|---|---|---|
| committer | Chris Wright <chrisw@sous-sol.org> | 2006-06-29 17:17:15 -0700 |
| commit | 50cdbb604d8e4f38c30e387ef28433a02b91e6f1 (patch) | |
| tree | 4899008346e004d1955293f594b59cbfb5b11097 | |
| parent | 94f37cf0a304c16dcf86ec542e88b5448b2edfb7 (diff) | |
[PATCH] SPARC32: Fix iommu_flush_iotlb end address
Fix the calculation of the end address when flushing iotlb entries to
ram. This bug has been a cause of esp dma errors, and it affects
HyperSPARC systems much worse than SuperSPARC systems.
Signed-off-by: Bob Breuer <breuerr@mc.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Chris Wright <chrisw@sous-sol.org>
| -rw-r--r-- | arch/sparc/mm/iommu.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/sparc/mm/iommu.c b/arch/sparc/mm/iommu.c index 77840c804786..7215849db392 100644 --- a/arch/sparc/mm/iommu.c +++ b/arch/sparc/mm/iommu.c @@ -144,8 +144,9 @@ static void iommu_flush_iotlb(iopte_t *iopte, unsigned int niopte) unsigned long start; unsigned long end; - start = (unsigned long)iopte & PAGE_MASK; + start = (unsigned long)iopte; end = PAGE_ALIGN(start + niopte*sizeof(iopte_t)); + start &= PAGE_MASK; if (viking_mxcc_present) { while(start < end) { viking_mxcc_flush_page(start); |