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| author | Nishanth Aravamudan <nacc@linux.vnet.ibm.com> | 2013-01-18 09:16:24 (GMT) |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2013-01-29 00:35:08 (GMT) |
| commit | 22b382985a2e213e4ea0b4e436df24ab7228961d (patch) | |
| tree | e5434ffb51de271a8711494016a776926ee58afd | |
| parent | 4ae7ebe9522a9e3626e28b4d268dae712738573d (diff) | |
| download | linux-22b382985a2e213e4ea0b4e436df24ab7228961d.tar.xz | |
pseries/iommu: Fix iteration in DDW TCE clearrange
tce_clearrange_multi_pSeriesLP is attempting to iterate over all TCEs in
a given range. However, is it not advancing the dma_offset value passed
to plpar_tce_stuff via the next value. This prevents DLPAR from
completing, because TCEs are still present at slot isolation time.
Signed-off-by: Nishanth Aravamudan <nacc@us.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| -rw-r--r-- | arch/powerpc/platforms/pseries/iommu.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/powerpc/platforms/pseries/iommu.c b/arch/powerpc/platforms/pseries/iommu.c index e2685ba..a55b685 100644 --- a/arch/powerpc/platforms/pseries/iommu.c +++ b/arch/powerpc/platforms/pseries/iommu.c @@ -382,6 +382,7 @@ static int tce_clearrange_multi_pSeriesLP(unsigned long start_pfn, rc = plpar_tce_stuff((u64)be32_to_cpu(maprange->liobn), dma_offset, 0, limit); + next += limit * tce_size; num_tce -= limit; } while (num_tce > 0 && !rc); |