Sorry for the late response,
On Mon, 11 Feb 2008 21:40:36 -0800 (PST)
David Miller <[EMAIL PROTECTED]> wrote:
> From: FUJITA Tomonori <[EMAIL PROTECTED]>
> Date: Thu, 07 Feb 2008 10:38:01 +0900
>
> > Great, thanks! SPARC IOMMUs use bitmap for the free area management
> > like POWER IOMMUs so it could use lib/iommu-helper as POWER does.
>
> Please look at Linus's current tree, I believe I have things
> in a working state, and the DMA mask portions should be easier
> to add now.
Thanks! It looks great.
iommu->page_table_map_base is on IO_PAGE_SIZE boundary? If so, the
following patch works, I think (sorry, it's only compile tested
again).
Thanks,
=
>From 91af83802c30d071f98444846e85310a8d58ab3d Mon Sep 17 00:00:00 2001
From: FUJITA Tomonori <[EMAIL PROTECTED]>
Date: Sat, 16 Feb 2008 14:29:02 +0900
Subject: [PATCH] sparc64: make IOMMU code respect the segment boundary limits
Signed-off-by: FUJITA Tomonori <[EMAIL PROTECTED]>
---
arch/sparc64/kernel/iommu.c | 3 ++-
1 files changed, 2 insertions(+), 1 deletions(-)
diff --git a/arch/sparc64/kernel/iommu.c b/arch/sparc64/kernel/iommu.c
index d3276eb..ffefbf7 100644
--- a/arch/sparc64/kernel/iommu.c
+++ b/arch/sparc64/kernel/iommu.c
@@ -134,7 +134,8 @@ unsigned long iommu_range_alloc(struct device *dev,
else
boundary_size = ALIGN(1UL << 32, 1 << IO_PAGE_SHIFT);
- n = iommu_area_alloc(arena->map, limit, start, npages, 0,
+ n = iommu_area_alloc(arena->map, limit, start, npages,
+ iommu->page_table_map_base >> IO_PAGE_SHIFT,
boundary_size >> IO_PAGE_SHIFT, 0);
if (n == -1) {
if (likely(pass < 1)) {
--
1.5.3.4
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