From: Thiemo Seufer <ths@networkno.de>
Date: Mon, 18 Feb 2008 19:32:49 +0000 (+0000)
Subject: [MIPS] Reimplement clear_page/copy_page
X-Git-Tag: v2.6.26-rc1~700^2~44
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=fb2a27e743cd565c25cd896911e494482a8b7251;p=pandora-kernel.git

[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: Thiemo Seufer <ths@networkno.de>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---

Reading git-diff-tree failed