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New function: set_segmap_allctx()

This commit is contained in:
gwr 1995-10-10 21:38:56 +00:00
parent 1b2cf12fa7
commit 22bcf4e552
2 changed files with 32 additions and 15 deletions
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29
sys/arch/sun3/sun3/control.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: control.c,v 1.11 1995/06/01 20:44:40 gwr Exp $ */
/* $NetBSD: control.c,v 1.12 1995/10/10 21:38:56 gwr Exp $ */
/*
* Copyright (c) 1993 Adam Glass
@ -79,3 +79,30 @@ void set_segmap(va, sme)
{
set_control_byte((char *) CONTROL_ADDR_BUILD(SEGMAP_BASE, va), sme);
}
/*
* Set a segmap entry in all contexts.
* (i.e. somewhere in kernel space.)
* XXX - Should optimize: "(get|set)_control_(word|byte)"
* calls so this does save/restore of sfc/dfc only once!
*/
void set_segmap_allctx(va, sme)
vm_offset_t va;
unsigned char sme; /* segmap entry */
{
register char ctx, oldctx;
/* Inline get_context() */
oldctx = get_control_byte((char *) CONTEXT_REG);
oldctx &= CONTEXT_MASK;
for (ctx = 0; ctx < NCONTEXT; ctx++) {
/* Inlined set_context() */
set_control_byte((char *) CONTEXT_REG, ctx);
/* Inlined set_segmap() */
set_control_byte((char *) CONTROL_ADDR_BUILD(SEGMAP_BASE, va), sme);
}
/* Inlined set_context(ctx); */
set_control_byte((char *) CONTEXT_REG, oldctx);
}

18
sys/arch/sun3/sun3/pmap.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: pmap.c,v 1.57 1995/10/08 23:48:22 gwr Exp $ */
/* $NetBSD: pmap.c,v 1.58 1995/10/10 21:39:04 gwr Exp $ */
/*
* Copyright (c) 1994, 1995 Gordon W. Ross
@ -1855,13 +1855,8 @@ pmap_remove_range_mmu(pmap, sva, eva)
/* First, remove it from the MMU. */
if (kernel_pmap == pmap) {
old_ctx = get_context();
for (i=0; i < NCONTEXT; i++) { /* map out of all segments */
set_context(i);
/* Did cache flush above. */
set_segmap(sva, SEGINV);
}
set_context(old_ctx);
/* Did cache flush above. */
set_segmap_allctx(sva, SEGINV);
} else {
#ifdef PMAP_DEBUG
if (pmap_debug & PMD_SEGMAP) {
@ -2106,12 +2101,7 @@ pmap_enter_kernel(va, pa, prot, wired, new_pte)
if (sme == SEGINV) {
pmegp = pmeg_allocate(kernel_pmap, sun3_trunc_seg(va));
sme = pmegp->pmeg_index;
c = get_context();
for (i=0; i < NCONTEXT; i++) { /* map into all contexts */
set_context(i);
set_segmap(va, sme);
}
set_context(c);
set_segmap_allctx(va, sme);
#ifdef PMAP_DEBUG
if (pmap_debug & PMD_SEGMAP) {
printf("pmap: set_segmap pmap=%x va=%x sme=%x (ek1)\n",