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powerpc: Simplify 4k/64k copy_page logic

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To make it easier to add optimised versions of copy_page, remove
the 4kB loop for 64kB pages and just do all the work in copy_page.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
This commit is contained in:
Anton Blanchard
2011-05-08 21:18:38 +00:00
committed by Benjamin Herrenschmidt
parent 37e0c21e9b
commit d988f0e3f8
3 changed files with 6 additions and 25 deletions
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7
arch/powerpc/lib/copypage_64.S
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@@ -6,6 +6,7 @@
* as published by the Free Software Foundation; either version
* 2 of the License, or (at your option) any later version.
*/
#include <asm/page.h>
#include <asm/processor.h>
#include <asm/ppc_asm.h>
#include <asm/asm-offsets.h>
@@ -15,9 +16,9 @@ PPC64_CACHES:
.tc ppc64_caches[TC],ppc64_caches
.section ".text"
_GLOBAL(copy_4K_page)
li r5,4096 /* 4K page size */
_GLOBAL(copy_page)
lis r5,PAGE_SIZE@h
ori r5,r5,PAGE_SIZE@l
BEGIN_FTR_SECTION
ld r10,PPC64_CACHES@toc(r2)
lwz r11,DCACHEL1LOGLINESIZE(r10) /* log2 of cache line size */