The patch titled
x86_64: Don't warn for overflow in nommu case when dma_mask is < 32bit
has been added to the -mm tree. Its filename is
x86_64-dont-warn-for-overflow-in-nommu-case-when-dma_mask-is-32bit.patch
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
From: "Andi Kleen" <ak@xxxxxxx>
This triggers for b44's 1GB DMA workaround which tries to map first and then
bounces.
The 32bit heuristic is reasonable because the IOMMU doesn't attempt to handle
< 32bit masks anyways.
Signed-off-by: Andi Kleen <ak@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxx>
---
arch/x86_64/kernel/pci-nommu.c | 7 ++++---
1 files changed, 4 insertions(+), 3 deletions(-)
diff -puN arch/x86_64/kernel/pci-nommu.c~x86_64-dont-warn-for-overflow-in-nommu-case-when-dma_mask-is-32bit arch/x86_64/kernel/pci-nommu.c
--- devel/arch/x86_64/kernel/pci-nommu.c~x86_64-dont-warn-for-overflow-in-nommu-case-when-dma_mask-is-32bit 2006-05-15 21:43:17.000000000 -0700
+++ devel-akpm/arch/x86_64/kernel/pci-nommu.c 2006-05-15 21:43:17.000000000 -0700
@@ -12,9 +12,10 @@ static int
check_addr(char *name, struct device *hwdev, dma_addr_t bus, size_t size)
{
if (hwdev && bus + size > *hwdev->dma_mask) {
- printk(KERN_ERR
- "nommu_%s: overflow %Lx+%lu of device mask %Lx\n",
- name, (long long)bus, size, (long long)*hwdev->dma_mask);
+ if (*hwdev->dma_mask >= 0xffffffffULL)
+ printk(KERN_ERR
+ "nommu_%s: overflow %Lx+%lu of device mask %Lx\n",
+ name, (long long)bus, size, (long long)*hwdev->dma_mask);
return 0;
}
return 1;
_
Patches currently in -mm which might be from ak@xxxxxxx are
x86_64-check-for-bad-dma-address-in-b44-1gb-dma-workaround.patch
x86_64-dont-warn-for-overflow-in-nommu-case-when-dma_mask-is-32bit.patch
i386-x86_64-force-pci=noacpi-on-hp.patch
x86_64-fix-memory-hotadd-heuristics.patch
x86_64-dont-schedule-on-exception.patch
git-acpi.patch
git-agpgart.patch
x86_64-mm-remove-un-set_nmi_callback-and-reserve-release_lapic_nmi-functions-x86-fix.patch
x86_64-mm-remove-un-set_nmi_callback-and-reserve-release_lapic_nmi-functions-x86-fix-fix.patch
x86_64-mm-remove-un-set_nmi_callback-and-reserve-release_lapic_nmi-functions-x86-fix-fix-fix.patch
x86_64-mm-remove-un-set_nmi_callback-and-reserve-release_lapic_nmi-functions-x86_64-fix.patch
x86_64-mm-remove-un-set_nmi_callback-and-reserve-release_lapic_nmi-functions-x86_64-fix-fix.patch
x86_64-mm-serialize-assign_irq_vector-use-of-static-variables-fix.patch
-
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