diff options
Diffstat (limited to 'arch/ia64')
-rw-r--r-- | arch/ia64/hp/common/sba_iommu.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/arch/ia64/hp/common/sba_iommu.c b/arch/ia64/hp/common/sba_iommu.c index db8e1fcfa047..14691cda05c3 100644 --- a/arch/ia64/hp/common/sba_iommu.c +++ b/arch/ia64/hp/common/sba_iommu.c | |||
@@ -75,7 +75,7 @@ | |||
75 | ** If a device prefetches beyond the end of a valid pdir entry, it will cause | 75 | ** If a device prefetches beyond the end of a valid pdir entry, it will cause |
76 | ** a hard failure, ie. MCA. Version 3.0 and later of the zx1 LBA should | 76 | ** a hard failure, ie. MCA. Version 3.0 and later of the zx1 LBA should |
77 | ** disconnect on 4k boundaries and prevent such issues. If the device is | 77 | ** disconnect on 4k boundaries and prevent such issues. If the device is |
78 | ** particularly agressive, this option will keep the entire pdir valid such | 78 | ** particularly aggressive, this option will keep the entire pdir valid such |
79 | ** that prefetching will hit a valid address. This could severely impact | 79 | ** that prefetching will hit a valid address. This could severely impact |
80 | ** error containment, and is therefore off by default. The page that is | 80 | ** error containment, and is therefore off by default. The page that is |
81 | ** used for spill-over is poisoned, so that should help debugging somewhat. | 81 | ** used for spill-over is poisoned, so that should help debugging somewhat. |
@@ -258,10 +258,10 @@ static u64 prefetch_spill_page; | |||
258 | 258 | ||
259 | /* | 259 | /* |
260 | ** DMA_CHUNK_SIZE is used by the SCSI mid-layer to break up | 260 | ** DMA_CHUNK_SIZE is used by the SCSI mid-layer to break up |
261 | ** (or rather not merge) DMA's into managable chunks. | 261 | ** (or rather not merge) DMAs into manageable chunks. |
262 | ** On parisc, this is more of the software/tuning constraint | 262 | ** On parisc, this is more of the software/tuning constraint |
263 | ** rather than the HW. I/O MMU allocation alogorithms can be | 263 | ** rather than the HW. I/O MMU allocation algorithms can be |
264 | ** faster with smaller size is (to some degree). | 264 | ** faster with smaller sizes (to some degree). |
265 | */ | 265 | */ |
266 | #define DMA_CHUNK_SIZE (BITS_PER_LONG*iovp_size) | 266 | #define DMA_CHUNK_SIZE (BITS_PER_LONG*iovp_size) |
267 | 267 | ||