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Update pmap_page_wired_mappings() so that it counts 2/4MB page mappings.

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This commit is contained in:
alc 2008-04-07 07:38:02 +00:00
parent 6d3db5778b
commit f2ea5d4883
2 changed files with 36 additions and 8 deletions
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22
sys/amd64/amd64/pmap.c
View File

@ -220,6 +220,7 @@ static void pmap_pv_promote_pde(pmap_t pmap, vm_offset_t va, vm_paddr_t pa);
static void pmap_pvh_free(struct md_page *pvh, pmap_t pmap, vm_offset_t va);
static pv_entry_t pmap_pvh_remove(struct md_page *pvh, pmap_t pmap,
vm_offset_t va);
static int pmap_pvh_wired_mappings(struct md_page *pvh, int count);
static boolean_t pmap_demote_pde(pmap_t pmap, pd_entry_t *pde, vm_offset_t va);
static boolean_t pmap_enter_pde(pmap_t pmap, vm_offset_t va, vm_page_t m,
@ -3673,16 +3674,29 @@ pmap_page_exists_quick(pmap_t pmap, vm_page_t m)
int
pmap_page_wired_mappings(vm_page_t m)
{
pv_entry_t pv;
pt_entry_t *pte;
pmap_t pmap;
int count;
count = 0;
if ((m->flags & PG_FICTITIOUS) != 0)
return (count);
count = pmap_pvh_wired_mappings(&m->md, count);
return (pmap_pvh_wired_mappings(pa_to_pvh(VM_PAGE_TO_PHYS(m)), count));
}
/*
* pmap_pvh_wired_mappings:
*
* Return the updated number "count" of managed mappings that are wired.
*/
static int
pmap_pvh_wired_mappings(struct md_page *pvh, int count)
{
pmap_t pmap;
pt_entry_t *pte;
pv_entry_t pv;
mtx_assert(&vm_page_queue_mtx, MA_OWNED);
TAILQ_FOREACH(pv, &m->md.pv_list, pv_list) {
TAILQ_FOREACH(pv, &pvh->pv_list, pv_list) {
pmap = PV_PMAP(pv);
PMAP_LOCK(pmap);
pte = pmap_pte(pmap, pv->pv_va);

22
sys/i386/i386/pmap.c
View File

@ -277,6 +277,7 @@ static void pmap_pv_promote_pde(pmap_t pmap, vm_offset_t va, vm_paddr_t pa);
static void pmap_pvh_free(struct md_page *pvh, pmap_t pmap, vm_offset_t va);
static pv_entry_t pmap_pvh_remove(struct md_page *pvh, pmap_t pmap,
vm_offset_t va);
static int pmap_pvh_wired_mappings(struct md_page *pvh, int count);
static boolean_t pmap_demote_pde(pmap_t pmap, pd_entry_t *pde, vm_offset_t va);
static boolean_t pmap_enter_pde(pmap_t pmap, vm_offset_t va, vm_page_t m,
@ -3811,17 +3812,30 @@ pmap_page_exists_quick(pmap_t pmap, vm_page_t m)
int
pmap_page_wired_mappings(vm_page_t m)
{
pv_entry_t pv;
pt_entry_t *pte;
pmap_t pmap;
int count;
count = 0;
if ((m->flags & PG_FICTITIOUS) != 0)
return (count);
count = pmap_pvh_wired_mappings(&m->md, count);
return (pmap_pvh_wired_mappings(pa_to_pvh(VM_PAGE_TO_PHYS(m)), count));
}
/*
* pmap_pvh_wired_mappings:
*
* Return the updated number "count" of managed mappings that are wired.
*/
static int
pmap_pvh_wired_mappings(struct md_page *pvh, int count)
{
pmap_t pmap;
pt_entry_t *pte;
pv_entry_t pv;
mtx_assert(&vm_page_queue_mtx, MA_OWNED);
sched_pin();
TAILQ_FOREACH(pv, &m->md.pv_list, pv_list) {
TAILQ_FOREACH(pv, &pvh->pv_list, pv_list) {
pmap = PV_PMAP(pv);
PMAP_LOCK(pmap);
pte = pmap_pte_quick(pmap, pv->pv_va);