diff options
| author | Miod Vallat <miod@cvs.openbsd.org> | 2001-12-15 11:21:09 +0000 |
|---|---|---|
| committer | Miod Vallat <miod@cvs.openbsd.org> | 2001-12-15 11:21:09 +0000 |
| commit | 8a6cd35cf4ff5c0518294928548b4ddea2a0c0d1 (patch) | |
| tree | af2d007314661c1c14a4d6f42c0e1d3f50d60524 /sys/arch/m68k | |
| parent | 8ad6e3ee9d7e9895a2be70e6d4ef0337001212c6 (diff) | |
Optimize (reduce) the pmap_changebit() calls for 68060 processors.
Diffstat (limited to 'sys/arch/m68k')
| -rw-r--r-- | sys/arch/m68k/m68k/pmap_motorola.c | 17 |
1 files changed, 7 insertions, 10 deletions
diff --git a/sys/arch/m68k/m68k/pmap_motorola.c b/sys/arch/m68k/m68k/pmap_motorola.c index fce5e1b30e4..d68e70da189 100644 --- a/sys/arch/m68k/m68k/pmap_motorola.c +++ b/sys/arch/m68k/m68k/pmap_motorola.c @@ -1,4 +1,4 @@ -/* $OpenBSD: pmap_motorola.c,v 1.10 2001/12/14 21:44:04 miod Exp $ */ +/* $OpenBSD: pmap_motorola.c,v 1.11 2001/12/15 11:21:08 miod Exp $ */ /* * Copyright (c) 1999 The NetBSD Foundation, Inc. @@ -2641,8 +2641,7 @@ pmap_enter_ptpage(pmap, va) if (mmutype == MMU_68060) { while (stpa < (paddr_t)pmap->pm_stpa + MACHINE_STSIZE) { - pmap_changebit(stpa, 0, ~PG_CCB); - pmap_changebit(stpa, PG_CI, ~0); + pmap_changebit(stpa, PG_CI, ~PG_CCB); stpa += PAGE_SIZE; } DCIS(); /* XXX */ @@ -2734,10 +2733,8 @@ pmap_enter_ptpage(pmap, va) pmap_enter(pmap, va, ptpa, VM_PROT_READ | VM_PROT_WRITE, VM_PROT_READ | VM_PROT_WRITE | PMAP_WIRED); #if defined(M68060) - if (mmutype == MMU_68060) { - pmap_changebit(ptpa, 0, ~PG_CCB); - pmap_changebit(ptpa, PG_CI, ~0); - } + if (mmutype == MMU_68060) + pmap_changebit(ptpa, PG_CI, ~PG_CCB); #endif pmap_update(pmap); #ifdef DEBUG @@ -2793,13 +2790,13 @@ pmap_enter_ptpage(pmap, va) pmap == pmap_kernel() ? "Kernel" : "User", va, ptpa, pte, *pte); #endif - pmap_changebit(ptpa, 0, ~PG_CCB); #ifdef M68060 if (mmutype == MMU_68060) { - pmap_changebit(ptpa, PG_CI, ~0); + pmap_changebit(ptpa, PG_CI, ~PG_CCB); DCIS(); - } + } else #endif + pmap_changebit(ptpa, 0, ~PG_CCB); } #endif /* |