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| author | Paul Mundt <lethal@linux-sh.org> | 2009-07-27 20:53:22 +0900 |
|---|---|---|
| committer | Paul Mundt <lethal@linux-sh.org> | 2009-07-27 20:53:22 +0900 |
| commit | dfff0fa65ab15db45acd64b3189787d37ab163cd (patch) | |
| tree | c888641a25f83fb75a4886f6c1e63c44d889fed4 /arch/sh/lib | |
| parent | 2277ab4a1df50e05bc732fe9488d4e902bb8399a (diff) | |
| download | op-kernel-dev-dfff0fa65ab15db45acd64b3189787d37ab163cd.zip op-kernel-dev-dfff0fa65ab15db45acd64b3189787d37ab163cd.tar.gz | |
sh: wire up clear_user_highpage() for sh4, convert sh7705.
This wires up clear_user_highpage() on SH-4 and subsequently converts the
SH7705 32kB cache mode over to using it. Now that the SH-4 implementation
handles all of the dcache purging directly in the aliasing case, there is
no need to do this in the default clear_page() implementation.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'arch/sh/lib')
| -rw-r--r-- | arch/sh/lib/clear_page.S | 46 |
1 files changed, 0 insertions, 46 deletions
diff --git a/arch/sh/lib/clear_page.S b/arch/sh/lib/clear_page.S index 8342bfb..bee9817 100644 --- a/arch/sh/lib/clear_page.S +++ b/arch/sh/lib/clear_page.S @@ -8,52 +8,6 @@ #include <linux/linkage.h> #include <asm/page.h> -/* - * clear_page - * @to: P1 address - * - * void clear_page(void *to) - */ - -/* - * r0 --- scratch - * r4 --- to - * r5 --- to + PAGE_SIZE - */ -ENTRY(clear_page) - mov r4,r5 - mov.l .Llimit,r0 - add r0,r5 - mov #0,r0 - ! -1: -#if defined(CONFIG_CPU_SH4) - movca.l r0,@r4 - mov r4,r1 -#else - mov.l r0,@r4 -#endif - add #32,r4 - mov.l r0,@-r4 - mov.l r0,@-r4 - mov.l r0,@-r4 - mov.l r0,@-r4 - mov.l r0,@-r4 - mov.l r0,@-r4 - mov.l r0,@-r4 -#if defined(CONFIG_CPU_SH4) - ocbwb @r1 -#endif - cmp/eq r5,r4 - bf/s 1b - add #28,r4 - ! - rts - nop - - .balign 4 -.Llimit: .long (PAGE_SIZE-28) - ENTRY(__clear_user) ! mov #0, r0 |
