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Load the root pointer using VM_PMAP_MMUCRP 

Also rename nodb_trap to _nodb_trap
This commit is contained in:
gwr 1997-01-23 22:47:36 +00:00
parent 67df040efd
commit d33b4cd423
2 changed files with 10 additions and 8 deletions
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9
sys/arch/sun3/sun3x/locore.s
View File

@ -1,4 +1,4 @@
/* $NetBSD: locore.s,v 1.3 1997/01/17 16:30:05 gwr Exp $ */
/* $NetBSD: locore.s,v 1.4 1997/01/23 22:47:36 gwr Exp $ */
/*
* Copyright (c) 1988 University of Utah.
@ -602,7 +602,7 @@ Lbrkpt2:
| Drop into the PROM temporarily...
movl a2,sp@- | push frame ptr
movl d2,sp@- | push trap type
jbsr _nodb_trap | handle the trap
jbsr __nodb_trap | handle the trap
addql #8,sp | pop args
Lbrkpt3:
| The stack pointer may have been modified, or
@ -1074,12 +1074,13 @@ Lswnofpsave:
/* Our pmap does not need pmap_activate() */
/* Just load the new CPU Root Pointer (MMU) */
/* XXX - Skip if oldproc has same pm_a_tbl? */
movl a0@(P_VMSPACE),a0 | vm = p->p_vmspace
lea a0@(VM_PMAP_MMUCRP),a0 | a0 = &vm->vm_pmap.pm_mmucrp
movl #CACHE_CLR,d0
movc d0,cacr | invalidate cache(s)
pflusha | flush entire TLB
movl a1@(PCB_MMUCRP),a0 | get CRP virtual address
pmove a0@,crp | load new user root pointer
| Reload registers of new process.

9
sys/arch/sun3x/sun3x/locore.s
View File

@ -1,4 +1,4 @@
/* $NetBSD: locore.s,v 1.3 1997/01/17 16:30:05 gwr Exp $ */
/* $NetBSD: locore.s,v 1.4 1997/01/23 22:47:36 gwr Exp $ */
/*
* Copyright (c) 1988 University of Utah.
@ -602,7 +602,7 @@ Lbrkpt2:
| Drop into the PROM temporarily...
movl a2,sp@- | push frame ptr
movl d2,sp@- | push trap type
jbsr _nodb_trap | handle the trap
jbsr __nodb_trap | handle the trap
addql #8,sp | pop args
Lbrkpt3:
| The stack pointer may have been modified, or
@ -1074,12 +1074,13 @@ Lswnofpsave:
/* Our pmap does not need pmap_activate() */
/* Just load the new CPU Root Pointer (MMU) */
/* XXX - Skip if oldproc has same pm_a_tbl? */
movl a0@(P_VMSPACE),a0 | vm = p->p_vmspace
lea a0@(VM_PMAP_MMUCRP),a0 | a0 = &vm->vm_pmap.pm_mmucrp
movl #CACHE_CLR,d0
movc d0,cacr | invalidate cache(s)
pflusha | flush entire TLB
movl a1@(PCB_MMUCRP),a0 | get CRP virtual address
pmove a0@,crp | load new user root pointer
| Reload registers of new process.