diff options
| author | Miod Vallat <miod@cvs.openbsd.org> | 2004-07-22 19:37:40 +0000 |
|---|---|---|
| committer | Miod Vallat <miod@cvs.openbsd.org> | 2004-07-22 19:37:40 +0000 |
| commit | 44255f1b8cf57a43968ad7e37c5208d43ea982a3 (patch) | |
| tree | 3432295a017a9e12347966715a0c1805f6adc556 /sys | |
| parent | 6b80f41852341ecacd30b1cbaefa23316c4616ca (diff) | |
Make the inline bzero() of the U area much more readable.
As a bonus it generates smaller and faster code.
Diffstat (limited to 'sys')
| -rw-r--r-- | sys/arch/m68k/m68k/pmap_bootstrap.c | 17 |
1 files changed, 7 insertions, 10 deletions
diff --git a/sys/arch/m68k/m68k/pmap_bootstrap.c b/sys/arch/m68k/m68k/pmap_bootstrap.c index e5197538949..809aaebcfcd 100644 --- a/sys/arch/m68k/m68k/pmap_bootstrap.c +++ b/sys/arch/m68k/m68k/pmap_bootstrap.c @@ -1,4 +1,4 @@ -/* $OpenBSD: pmap_bootstrap.c,v 1.6 2003/06/02 23:27:48 millert Exp $ */ +/* $OpenBSD: pmap_bootstrap.c,v 1.7 2004/07/22 19:37:39 miod Exp $ */ /* * Copyright (c) 1995 Theo de Raadt @@ -124,6 +124,7 @@ pmap_bootstrap(nextpa, firstpa) u_int nptpages, kstsize; st_entry_t protoste, *ste; pt_entry_t protopte, *pte, *epte; + int num; PMAP_MD_LOCALS /* @@ -204,8 +205,6 @@ pmap_bootstrap(nextpa, firstpa) * likely be insufficient in the future (at least for the kernel). */ if (RELOC(mmutype, int) <= MMU_68040) { - int num; - /* * First invalidate the entire "segment table" pages * (levels 1 and 2 have the same "invalid" value). @@ -430,14 +429,12 @@ pmap_bootstrap(nextpa, firstpa) /* * Setup u-area for process 0. */ - /* - * Zero the u-area. - * NOTE: `pte' and `epte' aren't PTEs here. - */ + + /* Zero the u-area (`pte' is not really a PTE here) */ pte = PA2VA(p0upa, u_int *); - epte = (u_int *)(PA2VA(p0upa, u_int) + USPACE); - while (pte < epte) - *pte++ = PG_NV; + for (num = USPACE / sizeof(u_int); num != 0; num--) + *pte++ = 0; + /* * Remember the u-area address so it can be loaded in the * proc struct p_addr field later. |