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pmap_kenter_pa() always creates privileged mappings.

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No need to enter a no-fault mapping any more.
This commit is contained in:
eeh 2001-08-09 01:01:31 +00:00
parent 10d6680e29
commit 462c99aa55
1 changed files with 12 additions and 23 deletions
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35
sys/arch/sparc64/sparc64/pmap.c
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@ -1,4 +1,4 @@
/* $NetBSD: pmap.c,v 1.105 2001/07/31 06:55:47 eeh Exp $ */
/* $NetBSD: pmap.c,v 1.106 2001/08/09 01:01:31 eeh Exp $ */
#undef NO_VCACHE /* Don't forget the locked TLB in dostart */
#define HWREF
/*
@ -1306,21 +1306,6 @@ remap_data:
phys_msgbuf += NBPG;
} while (psize-=NBPG);
}
/*
* Also add a global NFO mapping for page zero.
*/
data = TSB_DATA(0 /* global */,
PGSZ_8K,
0 /* Physaddr */,
1 /* priv */,
0 /* Write */,
1 /* Cacheable */,
0 /* No ALIAS */,
1 /* valid */,
0 /* IE */);
data |= TLB_NFO;
pmap_enter_kpage(NULL, data);
BDPRINTF(PDB_BOOT1, ("Done inserting mesgbuf into pmap_kernel()\r\n"));
BDPRINTF(PDB_BOOT1, ("Inserting PROM mappings into pmap_kernel()\r\n"));
@ -1406,6 +1391,14 @@ remap_data:
/* Now map in all 8 pages of cpu_info */
pa = cpu0paddr;
prom_map_phys(pa, 64*KB, vmmap, -1);
/*
* Also map it in as the interrupt stack.
* This lets the PROM see this if needed.
*
* XXXX locore.s does not flush these mappings
* before installing the locked TTE.
*/
prom_map_phys(pa, 64*KB, CPUINFO_VA, -1);
for (i=0; i<8; i++) {
int64_t data;
@ -1971,7 +1964,7 @@ pmap_kenter_pa(va, pa, prot)
enter_stats.ci ++;
#endif
tte.tag = TSB_TAG(0,pm->pm_ctx,va);
tte.data = TSB_DATA(0, PGSZ_8K, pa, pm == pmap_kernel(),
tte.data = TSB_DATA(0, PGSZ_8K, pa, 1 /* Privileged */,
(VM_PROT_WRITE & prot),
(!(pa & PMAP_NC)), pa & (PMAP_NVC), 1, 0);
/* We don't track modification here. */
@ -2219,13 +2212,9 @@ pmap_enter(pm, va, pa, prot, flags)
#ifdef DEBUG
enter_stats.ci ++;
#endif
/*
* Not used any more.
tte.tag = TSB_TAG(0,pm->pm_ctx,va);
*/
tte.data = TSB_DATA(0, size, pa, pm == pmap_kernel(),
(flags & VM_PROT_WRITE),
(!(pa & PMAP_NC)),aliased,1,(pa & PMAP_LITTLE));
(flags & VM_PROT_WRITE), (!(pa & PMAP_NC)),
aliased, 1, (pa & PMAP_LITTLE));
#ifdef HWREF
if (prot & VM_PROT_WRITE) tte.data |= TLB_REAL_W;
#else