diff options
| author | Bob Breuer <breuerr@mc.net> | 2006-08-18 21:26:56 +0200 |
|---|---|---|
| committer | Adrian Bunk <bunk@stusta.de> | 2006-08-18 21:26:56 +0200 |
| commit | 9169b8b2bb5169ff8339cca8a17b6bb1e152162c (patch) | |
| tree | dfb7baa2b39375404b331116accba6d3899f3f9b | |
| parent | 0575ec15879ef8efe3f363ab28aa8d90a56be350 (diff) | |
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>
Acked-by: William Lee Irwin III <wli@holomorphy.com>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
| -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 77840c80478..7215849db39 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); |