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| author | Anton Arapov <anton@redhat.com> | 2012-10-29 11:15:37 +0100 |
|---|---|---|
| committer | Anton Arapov <anton@redhat.com> | 2012-10-29 11:15:37 +0100 |
| commit | 7d558cd9c7b18e4b16953265aa0da45e63f3b968 (patch) | |
| tree | 7135d5a810768c9c619346282ee9cfdf1765e225 /arch/powerpc/kernel/dma-iommu.c | |
| parent | 985ef6b2108ed28ffd5f6630e1e0fce2e2a775f2 (diff) | |
| download | kernel-uprobes-f17.tar.gz kernel-uprobes-f17.tar.xz kernel-uprobes-f17.zip | |
Signed-off-by: Anton Arapov <anton@redhat.com>
Diffstat (limited to 'arch/powerpc/kernel/dma-iommu.c')
| -rw-r--r-- | arch/powerpc/kernel/dma-iommu.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/arch/powerpc/kernel/dma-iommu.c b/arch/powerpc/kernel/dma-iommu.c index bcfdcd22c76..e4897523de4 100644 --- a/arch/powerpc/kernel/dma-iommu.c +++ b/arch/powerpc/kernel/dma-iommu.c @@ -83,11 +83,10 @@ static int dma_iommu_dma_supported(struct device *dev, u64 mask) return 0; } - if ((tbl->it_offset + tbl->it_size) > (mask >> IOMMU_PAGE_SHIFT)) { - dev_info(dev, "Warning: IOMMU window too big for device mask\n"); - dev_info(dev, "mask: 0x%08llx, table end: 0x%08lx\n", - mask, (tbl->it_offset + tbl->it_size) << - IOMMU_PAGE_SHIFT); + if (tbl->it_offset > (mask >> IOMMU_PAGE_SHIFT)) { + dev_info(dev, "Warning: IOMMU offset too big for device mask\n"); + dev_info(dev, "mask: 0x%08llx, table offset: 0x%08lx\n", + mask, tbl->it_offset << IOMMU_PAGE_SHIFT); return 0; } else return 1; @@ -109,6 +108,7 @@ static u64 dma_iommu_get_required_mask(struct device *dev) struct dma_map_ops dma_iommu_ops = { .alloc = dma_iommu_alloc_coherent, .free = dma_iommu_free_coherent, + .mmap = dma_direct_mmap_coherent, .map_sg = dma_iommu_map_sg, .unmap_sg = dma_iommu_unmap_sg, .dma_supported = dma_iommu_dma_supported, |