diff options
Diffstat (limited to 'sys/arch/hp300/hp300/locore.s')
| -rw-r--r-- | sys/arch/hp300/hp300/locore.s | 20 |
1 files changed, 19 insertions, 1 deletions
diff --git a/sys/arch/hp300/hp300/locore.s b/sys/arch/hp300/hp300/locore.s index c8820504608..7b3d01ae55b 100644 --- a/sys/arch/hp300/hp300/locore.s +++ b/sys/arch/hp300/hp300/locore.s @@ -1,4 +1,4 @@ -/* $OpenBSD: locore.s,v 1.44 2004/12/30 21:26:14 miod Exp $ */ +/* $OpenBSD: locore.s,v 1.45 2004/12/30 21:28:47 miod Exp $ */ /* $NetBSD: locore.s,v 1.91 1998/11/11 06:41:25 thorpej Exp $ */ /* @@ -434,6 +434,23 @@ Lstart3: addql #8,sp /* + * While still running physical, override copypage() with the 68040 + * optimized version, copypage040(), if possible. + * This relies upon the fact that copypage() immediately follows + * copypage040() in memory. + */ + RELOC(mmutype, a0) + cmpl #MMU_68040,a0@ + jgt Lmmu_enable + RELOC(copypage040, a0) + RELOC(copypage, a1) + movl a1, a2 +1: + movw a0@+, a2@+ + cmpl a0, a1 + jgt 1b + +/* * Prepare to enable MMU. * Since the kernel is not mapped logical == physical we must insure * that when the MMU is turned on, all prefetched addresses (including @@ -443,6 +460,7 @@ Lstart3: * * Is this all really necessary, or am I paranoid?? */ +Lmmu_enable: RELOC(Sysseg, a0) | system segment table addr movl a0@,d1 | read value (a KVA) addl a5,d1 | convert to PA |