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Converge with i386/alpha/etc pmap.c for pmap_new_proc/pmap_dispose_proc().

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This commit is contained in:
Peter Wemm 2001-08-31 06:30:27 +00:00
parent 5a4b540da0
commit 80d3dee1c9
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=82633
1 changed files with 14 additions and 16 deletions
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30
sys/sparc64/sparc64/pmap.c
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@ -565,29 +565,27 @@ pmap_pageable(pmap_t pmap, vm_offset_t sva, vm_offset_t eva,
void
pmap_new_proc(struct proc *p)
{
struct user *u;
vm_object_t o;
vm_offset_t u;
vm_page_t m;
u_int i;
if ((o = p->p_upages_obj) == NULL) {
o = p->p_upages_obj;
if (o == NULL) {
o = vm_object_allocate(OBJT_DEFAULT, UPAGES);
p->p_upages_obj = o;
}
if ((u = p->p_addr) == NULL) {
u = (struct user *)kmem_alloc_nofault(kernel_map,
UPAGES * PAGE_SIZE);
u = (vm_offset_t)p->p_addr;
if (u == 0) {
u = kmem_alloc_nofault(kernel_map, UPAGES * PAGE_SIZE);
KASSERT(u != NULL, ("pmap_new_proc: u area\n"));
p->p_addr = u;
p->p_addr = (struct user *)u;
}
for (i = 0; i < UPAGES; i++) {
m = vm_page_grab(o, i, VM_ALLOC_NORMAL | VM_ALLOC_RETRY);
m->wire_count++;
cnt.v_wire_count++;
pmap_kenter((vm_offset_t)u + i * PAGE_SIZE,
VM_PAGE_TO_PHYS(m));
pmap_kenter(u + i * PAGE_SIZE, VM_PAGE_TO_PHYS(m));
vm_page_wakeup(m);
vm_page_flag_clear(m, PG_ZERO);
vm_page_flag_set(m, PG_MAPPED | PG_WRITEABLE);
@ -599,18 +597,18 @@ void
pmap_dispose_proc(struct proc *p)
{
vm_object_t upobj;
vm_offset_t up;
vm_page_t m;
int i;
upobj = p->p_upages_obj;
up = (vm_offset_t)p->p_addr;
for (i = 0; i < UPAGES; i++) {
if ((m = vm_page_lookup(upobj, i)) == NULL)
panic("pmap_dispose_proc: upage already missing???");
m = vm_page_lookup(upobj, i);
if (m == NULL)
panic("pmap_dispose_proc: upage already missing?");
vm_page_busy(m);
pmap_kremove((vm_offset_t)p->p_addr + i * PAGE_SIZE);
pmap_kremove(up + i * PAGE_SIZE);
vm_page_unwire(m, 0);
vm_page_free(m);
}