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Record the new physical address of the pcb in pmap_swapin_proc.

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Third attempt at pmap_remove().  This one actually works properly :-).
This commit is contained in:
dfr 1998-07-28 09:34:50 +00:00
parent f59d8bb706
commit ebdd0888b1
1 changed files with 19 additions and 12 deletions
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31
sys/alpha/alpha/pmap.c
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@ -43,7 +43,7 @@
* from: @(#)pmap.c 7.7 (Berkeley) 5/12/91
* from: i386 Id: pmap.c,v 1.193 1998/04/19 15:22:48 bde Exp
* with some ideas from NetBSD's alpha pmap
* $Id: pmap.c,v 1.5 1998/07/24 09:43:27 dfr Exp $
* $Id: pmap.c,v 1.6 1998/07/26 18:13:28 dfr Exp $
*/
/*
@ -1004,6 +1004,12 @@ pmap_swapin_proc(p)
PAGE_WAKEUP(m);
m->flags |= PG_MAPPED | PG_WRITEABLE;
}
/*
* The pcb may be at a different physical address now so cache the
* new address.
*/
p->p_md.md_pcbpaddr = (void*) vtophys((vm_offset_t) &p->p_addr->u_pcb);
}
/***************************************************
@ -1761,7 +1767,7 @@ pmap_remove_page(pmap_t pmap, vm_offset_t va)
void
pmap_remove(pmap_t pmap, vm_offset_t sva, vm_offset_t eva)
{
vm_offset_t va, nva1, nva2;
vm_offset_t va, nva;
if (pmap == NULL)
return;
@ -1779,18 +1785,19 @@ pmap_remove(pmap_t pmap, vm_offset_t sva, vm_offset_t eva)
return;
}
for (va = sva; va < eva; va = nva1) {
nva1 = alpha_l1trunc(va + ALPHA_L1SIZE);
if (!pmap_pte_v(pmap_lev1pte(pmap, va)))
for (va = sva; va < eva; va = nva) {
if (!pmap_pte_v(pmap_lev1pte(pmap, va))) {
nva = alpha_l1trunc(va + ALPHA_L1SIZE);
continue;
for (; va < eva && va < nva1; va = nva2) {
nva2 = alpha_l2trunc(va + ALPHA_L2SIZE);
if (!pmap_pte_v(pmap_lev2pte(pmap, va)))
continue;
for (; va < eva && va < nva2; va += PAGE_SIZE)
pmap_remove_page(pmap, va);
}
if (!pmap_pte_v(pmap_lev2pte(pmap, va))) {
nva = alpha_l2trunc(va + ALPHA_L2SIZE);
continue;
}
pmap_remove_page(pmap, va);
nva = va + PAGE_SIZE;
}
}