[MIPS] Reimplement clear_page/copy_page
Fold the SB-1 specific implementation of clear_page/copy_page in the generic version, and rewrite that one in tlbex style. The immediate benefits: - It converts the compile-time workaround for SB-1 pass 1 prefetches to a more efficient run-time check. - It allows adjustment of loop unfolling, which helps to reduce the number of redundant cdex cache ops. - It fixes some esoteric cornercases (the cache line length calculations can go wrong, and support for 64k pages without prefetch instructions will overflow the addiu immediate). - Somewhat better guesses of "good" prefetch values. Signed-off-by: NThiemo Seufer <ths@networkno.de> Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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arch/mips/mm/page.c
0 → 100644
arch/mips/mm/pg-r4k.c
已删除
100644 → 0
arch/mips/mm/pg-sb1.c
已删除
100644 → 0
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