diff options
Diffstat (limited to 'arch/sparc/mm/hypersparc.S')
| -rw-r--r-- | arch/sparc/mm/hypersparc.S | 52 |
1 files changed, 44 insertions, 8 deletions
diff --git a/arch/sparc/mm/hypersparc.S b/arch/sparc/mm/hypersparc.S index 62e2022e0..e6ba7b235 100644 --- a/arch/sparc/mm/hypersparc.S +++ b/arch/sparc/mm/hypersparc.S @@ -1,4 +1,4 @@ -/* $Id: hypersparc.S,v 1.7 1997/05/03 05:09:12 davem Exp $ +/* $Id: hypersparc.S,v 1.10 1997/05/27 19:29:58 jj Exp $ * hypersparc.S: High speed Hypersparc mmu/cache operations. * * Copyright (C) 1997 David S. Miller (davem@caip.rutgers.edu) @@ -9,6 +9,7 @@ #include <asm/asi.h> #include <asm/page.h> #include <asm/pgtsrmmu.h> +#include <linux/init.h> #define WINDOW_FLUSH(tmp1, tmp2) \ mov 0, tmp1; \ @@ -335,17 +336,19 @@ hypersparc_flush_tlb_page_out: retl sta %g5, [%g1] ASI_M_MMUREGS + __INIT + /* High speed page clear/copy. */ - .globl hypersparc_bzero_1page, hypersparc_copy_1page hypersparc_bzero_1page: +/* NOTE: This routine has to be shorter than 40insns --jj */ clr %g1 mov 32, %g2 - add %g2, %g2, %g3 - add %g2, %g3, %g4 - add %g2, %g4, %g5 - add %g2, %g5, %g7 - add %g2, %g7, %o2 - add %g2, %o2, %o3 + mov 64, %g3 + mov 96, %g4 + mov 128, %g5 + mov 160, %g7 + mov 192, %o2 + mov 224, %o3 mov 16, %o1 1: stda %g0, [%o0 + %g0] ASI_M_BFILL @@ -364,6 +367,7 @@ hypersparc_bzero_1page: nop hypersparc_copy_1page: +/* NOTE: This routine has to be shorter than 70insns --jj */ sub %o1, %o0, %o2 ! difference mov 16, %g1 1: @@ -388,3 +392,35 @@ hypersparc_copy_1page: retl nop + + .globl hypersparc_setup_blockops +hypersparc_setup_blockops: + sethi %hi(bzero_1page), %o0 + or %o0, %lo(bzero_1page), %o0 + sethi %hi(hypersparc_bzero_1page), %o1 + or %o1, %lo(hypersparc_bzero_1page), %o1 + sethi %hi(hypersparc_copy_1page), %o2 + or %o2, %lo(hypersparc_copy_1page), %o2 + ld [%o1], %o4 +1: + add %o1, 4, %o1 + st %o4, [%o0] + add %o0, 4, %o0 + cmp %o1, %o2 + bne 1b + ld [%o1], %o4 + sethi %hi(__copy_1page), %o0 + or %o0, %lo(__copy_1page), %o0 + sethi %hi(hypersparc_setup_blockops), %o2 + or %o2, %lo(hypersparc_setup_blockops), %o2 + ld [%o1], %o4 +1: + add %o1, 4, %o1 + st %o4, [%o0] + add %o0, 4, %o0 + cmp %o1, %o2 + bne 1b + ld [%o1], %o4 + sta %g0, [%g0] ASI_M_FLUSH_IWHOLE + retl + nop |