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| author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2012-07-13 11:45:49 +0400 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2012-07-13 11:45:49 +0400 |
| commit | dcd261ba58d7a49f4624b34b3bd2d535f63643a2 (patch) | |
| tree | b170d0c3581d11294e25bd8f5cb795a930876d10 /arch/powerpc/kernel/iommu.c | |
| parent | af3bf7fbe0148aadc8fedd6f5e5279cabef9ced5 (diff) | |
| download | linux-dcd261ba58d7a49f4624b34b3bd2d535f63643a2.tar.xz | |
powerpc/iommu: Fix iommu pool initialization
The iommu pool patch has a bug where it would cause a crash when using
only one pool (based on the size of the DMA window).
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/kernel/iommu.c')
| -rw-r--r-- | arch/powerpc/kernel/iommu.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/powerpc/kernel/iommu.c b/arch/powerpc/kernel/iommu.c index fbefe729df32..ff5a6ce027b8 100644 --- a/arch/powerpc/kernel/iommu.c +++ b/arch/powerpc/kernel/iommu.c @@ -676,9 +676,9 @@ struct iommu_table *iommu_init_table(struct iommu_table *tbl, int nid) tbl->nr_pools = 1; /* We reserve the top 1/4 of the table for large allocations */ - tbl->poolsize = (tbl->it_size * 3 / 4) / IOMMU_NR_POOLS; + tbl->poolsize = (tbl->it_size * 3 / 4) / tbl->nr_pools; - for (i = 0; i < IOMMU_NR_POOLS; i++) { + for (i = 0; i < tbl->nr_pools; i++) { p = &tbl->pools[i]; spin_lock_init(&(p->lock)); p->start = tbl->poolsize * i; |