[PATCH] pasemi: fix iommu + 64K PAGE_SIZE bug
From: Olof Johansson <hidden>
Date: 2007-06-04 00:43:03
Subsystem:
linux for powerpc (32-bit and 64-bit), the rest · Maintainers:
Madhavan Srinivasan, Linus Torvalds
The powerpc iommu code was refactored by Linas back in the 2.6.20 time frame to map 4K pages from the generic code, but I had forgotten to go back and fix my platform driver before submitting it. Signed-off-by: Olof Johansson <redacted>
diff --git a/arch/powerpc/platforms/pasemi/iommu.c b/arch/powerpc/platforms/pasemi/iommu.c
index 95fa6a7..f33b21b 100644
--- a/arch/powerpc/platforms/pasemi/iommu.c
+++ b/arch/powerpc/platforms/pasemi/iommu.c@@ -31,8 +31,6 @@ #define IOBMAP_PAGE_SIZE (1 << IOBMAP_PAGE_SHIFT) #define IOBMAP_PAGE_MASK (IOBMAP_PAGE_SIZE - 1) -#define IOBMAP_PAGE_FACTOR (PAGE_SHIFT - IOBMAP_PAGE_SHIFT) - #define IOB_BASE 0xe0000000 #define IOB_SIZE 0x3000 /* Configuration registers */
@@ -97,9 +95,6 @@ static void iobmap_build(struct iommu_table *tbl, long index, bus_addr = (tbl->it_offset + index) << PAGE_SHIFT; - npages <<= IOBMAP_PAGE_FACTOR; - index <<= IOBMAP_PAGE_FACTOR; - ip = ((u32 *)tbl->it_base) + index; while (npages--) {
@@ -125,9 +120,6 @@ static void iobmap_free(struct iommu_table *tbl, long index, bus_addr = (tbl->it_offset + index) << PAGE_SHIFT; - npages <<= IOBMAP_PAGE_FACTOR; - index <<= IOBMAP_PAGE_FACTOR; - ip = ((u32 *)tbl->it_base) + index; while (npages--) {