diff options
| author | Alistair Popple <alistair@popple.id.au> | 2013-12-09 08:17:02 +0100 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2013-12-30 04:17:13 +0100 |
| commit | 3a553170d35d69bea3877bffa508489dfa6f133d (patch) | |
| tree | 9cb5b53ea4a60e10c9cfe2644f35a9fe4673d050 /arch/powerpc/kernel | |
| parent | powerpc/iommu: Update constant names to reflect their hardcoded page size (diff) | |
| download | linux-3a553170d35d69bea3877bffa508489dfa6f133d.tar.xz linux-3a553170d35d69bea3877bffa508489dfa6f133d.zip | |
powerpc/iommu: Add it_page_shift field to determine iommu page size
This patch adds a it_page_shift field to struct iommu_table and
initiliases it to 4K for all platforms.
Signed-off-by: Alistair Popple <alistair@popple.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/kernel')
| -rw-r--r-- | arch/powerpc/kernel/vio.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/arch/powerpc/kernel/vio.c b/arch/powerpc/kernel/vio.c index 2e89fa350763..170ac24a0106 100644 --- a/arch/powerpc/kernel/vio.c +++ b/arch/powerpc/kernel/vio.c @@ -1177,9 +1177,10 @@ static struct iommu_table *vio_build_iommu_table(struct vio_dev *dev) &tbl->it_index, &offset, &size); /* TCE table size - measured in tce entries */ - tbl->it_size = size >> IOMMU_PAGE_SHIFT_4K; + tbl->it_page_shift = IOMMU_PAGE_SHIFT_4K; + tbl->it_size = size >> tbl->it_page_shift; /* offset for VIO should always be 0 */ - tbl->it_offset = offset >> IOMMU_PAGE_SHIFT_4K; + tbl->it_offset = offset >> tbl->it_page_shift; tbl->it_busno = 0; tbl->it_type = TCE_VB; tbl->it_blocksize = 16; |