target-ppc: Disentangle get_segment()
The poorly named get_segment() function handles most of the address translation logic for hash-based MMUs. It has many ugly conditionals on whether the MMU is 32-bit or 64-bit. This patch splits the function into 32 and 64-bit versions, using the switch on mmu_type that's already in the caller (get_physical_address()) to select the right one. Most of the original function remains in mmu_helper.c to support the 6xx software loaded TLB implementations (cleaning those up is a project for another day). Signed-off-by: NDavid Gibson <david@gibson.dropbear.id.au> Signed-off-by: NAlexander Graf <agraf@suse.de>
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