| commit | c757e8528a304214d0a9be2e99011b94bf374d37 | [log] [tgz] |
|---|---|---|
| author | Will Deacon <will.deacon@arm.com> | Wed Jul 30 11:33:25 2014 +0100 |
| committer | Will Deacon <will.deacon@arm.com> | Tue Sep 16 19:14:57 2014 +0100 |
| tree | 616522ae592a60aa42bc24fef57e445e3835fca6 | |
| parent | 844e35bdfe834fccb5def1bc4cd614ca22409d0c [diff] |
iommu/arm-smmu: use page shift instead of page size to avoid division Arbitrary integer division is not available in all ARM CPUs, so the GCC may spit out calls to helper functions which are not implemented in the kernel. This patch avoids these problems in the SMMU driver by using page shift instead of page size, so that divisions by the page size (as required by the vSMMU code) can be expressed as a simple right shift. Signed-off-by: Will Deacon <will.deacon@arm.com>