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ARM_AMMU_CB() is calculated relative to ARM_SMMU_CB_BASE(), but the
latter is never of use on its own, and what we end up with is the same
ARM_SMMU_CB_BASE() + ARM_AMMU_CB() expression being duplicated at every
callsite. Folding the two together gives us a self-contained context
bank accessor which is much more pleasant to work with.
Secondly, we might as well simplify CB_BASE itself at the same time.
We use the address space size for its own sake precisely once, at probe
time, and every other usage is to dynamically calculate CB_BASE over
and over and over again. Let's flip things around so that we just
maintain the CB_BASE address directly.
Reviewed-by: Jordan Crouse <jcrouse@codeaurora.org>
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
452107c790