[PATCH 1/1] iommu/arm-smmu: modify the calculation of PASize and SEP fields

Will Deacon will.deacon at arm.com
Fri Dec 12 02:57:49 PST 2014


On Fri, Dec 12, 2014 at 08:41:03AM +0000, Zhen Lei wrote:
> 1. the calculation appear 3 times, it's good to define a function.
> 2. VA_BITS is dynamic determined by CONFIG_ARM64_VA_BITS yet, but current
>    switch..case can not cover all possible values.
> 3. change TTBCR2_ADDR_xx to ADDR_SIZE_xx, because it's not only TTBCR2 use it.

Please take a look at the pgtable rework I posted recently -- it moves a
bunch of this into a generic framework.

  http://lists.infradead.org/pipermail/linux-arm-kernel/2014-November/306786.html

(I plan to post v2 soon).

Will



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