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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 <fujita.tomonori@lab.ntt.co.jp>
Acked-by: Joerg Roedel <joerg.roedel@amd.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
FUJITA Tomonori
2008-09-22 22:35:07 +09:00
committed by Ingo Molnar
parent 832a90c304
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;
}