diff options
Diffstat (limited to 'arch/sparc/lib/NG2page.S')
| -rw-r--r-- | arch/sparc/lib/NG2page.S | 61 |
1 files changed, 0 insertions, 61 deletions
diff --git a/arch/sparc/lib/NG2page.S b/arch/sparc/lib/NG2page.S deleted file mode 100644 index 73b6b7c72cb..00000000000 --- a/arch/sparc/lib/NG2page.S +++ /dev/null @@ -1,61 +0,0 @@ -/* NG2page.S: Niagara-2 optimized clear and copy page. - * - * Copyright (C) 2007 (davem@davemloft.net) - */ - -#include <asm/asi.h> -#include <asm/page.h> -#include <asm/visasm.h> - - .text - .align 32 - - /* This is heavily simplified from the sun4u variants - * because Niagara-2 does not have any D-cache aliasing issues. - */ -NG2copy_user_page: /* %o0=dest, %o1=src, %o2=vaddr */ - prefetch [%o1 + 0x00], #one_read - prefetch [%o1 + 0x40], #one_read - VISEntryHalf - set PAGE_SIZE, %g7 - sub %o0, %o1, %g3 -1: stxa %g0, [%o1 + %g3] ASI_BLK_INIT_QUAD_LDD_P - subcc %g7, 64, %g7 - ldda [%o1] ASI_BLK_P, %f0 - stda %f0, [%o1 + %g3] ASI_BLK_P - add %o1, 64, %o1 - bne,pt %xcc, 1b - prefetch [%o1 + 0x40], #one_read - membar #Sync - VISExitHalf - retl - nop - -#define BRANCH_ALWAYS 0x10680000 -#define NOP 0x01000000 -#define NG_DO_PATCH(OLD, NEW) \ - sethi %hi(NEW), %g1; \ - or %g1, %lo(NEW), %g1; \ - sethi %hi(OLD), %g2; \ - or %g2, %lo(OLD), %g2; \ - sub %g1, %g2, %g1; \ - sethi %hi(BRANCH_ALWAYS), %g3; \ - sll %g1, 11, %g1; \ - srl %g1, 11 + 2, %g1; \ - or %g3, %lo(BRANCH_ALWAYS), %g3; \ - or %g3, %g1, %g3; \ - stw %g3, [%g2]; \ - sethi %hi(NOP), %g3; \ - or %g3, %lo(NOP), %g3; \ - stw %g3, [%g2 + 0x4]; \ - flush %g2; - - .globl niagara2_patch_pageops - .type niagara2_patch_pageops,#function -niagara2_patch_pageops: - NG_DO_PATCH(copy_user_page, NG2copy_user_page) - NG_DO_PATCH(_clear_page, NGclear_page) - NG_DO_PATCH(clear_user_page, NGclear_user_page) - retl - nop - .size niagara2_patch_pageops,.-niagara2_patch_pageops |