| commit | 3715863aa142c4f4c5208f5f3e5e9bac06006d2f | |
| author | FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> | |
| Tue, 4 Mar 2008 22:29:27 +0000 (4 14:29 -0800) | ||
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | |
| Wed, 5 Mar 2008 00:35:17 +0000 (4 16:35 -0800) | ||
| tree | cd93a86f90bfd8e9bef9cbcf40abde55acc26b80 | treesnapshot (tar.gz zip) |
| parent | 7eb701dc7779794d46e02a7fa1380289cb730d46 | commitdiff |
iommu: export iommu_is_span_boundary helper function
iommu_is_span_boundary is used internally in the IOMMU helper
(lib/iommu-helper.c), a primitive function that judges whether a memory area
spans LLD's segment boundary or not.
It's difficult to convert some IOMMUs to use the IOMMU helper but
iommu_is_span_boundary is still useful for them. So this patch exports it.
This is needed for the parisc iommu fixes.
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Cc: Kyle McMartin <kyle@parisc-linux.org>
Cc: Matthew Wilcox <matthew@wil.cx>
Cc: Grant Grundler <grundler@parisc-linux.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
iommu_is_span_boundary is used internally in the IOMMU helper
(lib/iommu-helper.c), a primitive function that judges whether a memory area
spans LLD's segment boundary or not.
It's difficult to convert some IOMMUs to use the IOMMU helper but
iommu_is_span_boundary is still useful for them. So this patch exports it.
This is needed for the parisc iommu fixes.
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Cc: Kyle McMartin <kyle@parisc-linux.org>
Cc: Matthew Wilcox <matthew@wil.cx>
Cc: Grant Grundler <grundler@parisc-linux.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| include/linux/iommu-helper.h | diffblobblamehistory | |
| lib/iommu-helper.c | diffblobblamehistory |