From dfff0fa65ab15db45acd64b3189787d37ab163cd Mon Sep 17 00:00:00 2001 From: Paul Mundt Date: Mon, 27 Jul 2009 20:53:22 +0900 Subject: 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 --- arch/sh/lib/clear_page.S | 46 ---------------------------------------------- 1 file changed, 46 deletions(-) (limited to 'arch/sh/lib') 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 #include -/* - * 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 -- cgit v1.1