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powerpc/booke: Clean up pmap a little for 64-bit

Description

powerpc/booke: Clean up pmap a little for 64-bit

64-bit Book-E pmap doesn't need copy and zero bounce pages, nor the mutex.
Don't initialize them or reserve space for them.

Details

Provenance
jhibbitsAuthored on
Parents
rS351486: powerpc/booke: Use the DMAP if possible in pmap_map()
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