diff options
| author | Alistair Popple <alistair@popple.id.au> | 2013-12-09 18:17:03 +1100 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2013-12-30 14:17:19 +1100 |
| commit | d084775738b746648d4102337163a04534a02982 (patch) | |
| tree | 641f5ea99dcdb27f51a7646d56a8d245f1d7f9c1 /arch/powerpc/kernel/dma-iommu.c | |
| parent | 3a553170d35d69bea3877bffa508489dfa6f133d (diff) | |
| download | blackbird-op-linux-d084775738b746648d4102337163a04534a02982.tar.gz blackbird-op-linux-d084775738b746648d4102337163a04534a02982.zip | |
powerpc/iommu: Update the generic code to use dynamic iommu page sizes
This patch updates the generic iommu backend code to use the
it_page_shift field to determine the iommu page size instead of
using hardcoded values.
Signed-off-by: Alistair Popple <alistair@popple.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/kernel/dma-iommu.c')
| -rw-r--r-- | arch/powerpc/kernel/dma-iommu.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/powerpc/kernel/dma-iommu.c b/arch/powerpc/kernel/dma-iommu.c index 5cfe3dbfc4a0..54d0116256f7 100644 --- a/arch/powerpc/kernel/dma-iommu.c +++ b/arch/powerpc/kernel/dma-iommu.c @@ -83,10 +83,10 @@ static int dma_iommu_dma_supported(struct device *dev, u64 mask) return 0; } - if (tbl->it_offset > (mask >> IOMMU_PAGE_SHIFT_4K)) { + if (tbl->it_offset > (mask >> tbl->it_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_4K); + mask, tbl->it_offset << tbl->it_page_shift); return 0; } else return 1; |
