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authorAlistair Popple <alistair@popple.id.au>2013-12-09 11:17:02 +0400
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2013-12-30 07:17:13 +0400
commit3a553170d35d69bea3877bffa508489dfa6f133d (patch)
tree9cb5b53ea4a60e10c9cfe2644f35a9fe4673d050 /arch/powerpc/platforms/pasemi
parente589a4404fa06730355de204d3d136ed9bbc7dea (diff)
downloadlinux-3a553170d35d69bea3877bffa508489dfa6f133d.tar.xz
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/platforms/pasemi')
-rw-r--r--arch/powerpc/platforms/pasemi/iommu.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/arch/powerpc/platforms/pasemi/iommu.c b/arch/powerpc/platforms/pasemi/iommu.c
index 7d2d036754b5..2e576f2ae442 100644
--- a/arch/powerpc/platforms/pasemi/iommu.c
+++ b/arch/powerpc/platforms/pasemi/iommu.c
@@ -138,8 +138,11 @@ static void iommu_table_iobmap_setup(void)
pr_debug(" -> %s\n", __func__);
iommu_table_iobmap.it_busno = 0;
iommu_table_iobmap.it_offset = 0;
+ iommu_table_iobmap.it_page_shift = IOBMAP_PAGE_SHIFT;
+
/* it_size is in number of entries */
- iommu_table_iobmap.it_size = 0x80000000 >> IOBMAP_PAGE_SHIFT;
+ iommu_table_iobmap.it_size =
+ 0x80000000 >> iommu_table_iobmap.it_page_shift;
/* Initialize the common IOMMU code */
iommu_table_iobmap.it_base = (unsigned long)iob_l2_base;