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iommu: export iommu_area_reserve helper function

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x86 has set_bit_string() that does the exact same thing that
set_bit_area() in lib/iommu-helper.c does.

This patch exports set_bit_area() in lib/iommu-helper.c as
iommu_area_reserve(), converts GART, Calgary, and AMD IOMMU to use it.

Signed-off-by: FUJITA Tomonori <[email protected]>
Acked-by: Joerg Roedel <[email protected]>
Signed-off-by: Ingo Molnar <[email protected]>
This commit is contained in:
FUJITA Tomonori 2008-09-22 22:35:07 +09:00 • committed by Ingo Molnar
commit d26dbc5cf9
5 changed files with 6 additions and 6 deletions
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5
lib/iommu-helper.c
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@ -30,8 +30,7 @@ again:
return index;
}
static inline void set_bit_area(unsigned long *map, unsigned long i,
int len)
void iommu_area_reserve(unsigned long *map, unsigned long i, int len)
{
unsigned long end = i + len;
while (i < end) {
@ -64,7 +63,7 @@ again:
start = index + 1;
goto again;
}
set_bit_area(map, index, nr);
iommu_area_reserve(map, index, nr);
}
return index;
}