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head/sys/i386/i386/pmap.c
| Show First 20 Lines • Show All 3,792 Lines • ▼ Show 20 Lines | if ((origpte & PG_MANAGED) != 0) { | ||||
| /* | /* | ||||
| * The pmap lock is sufficient to synchronize with | * The pmap lock is sufficient to synchronize with | ||||
| * concurrent calls to pmap_page_test_mappings() and | * concurrent calls to pmap_page_test_mappings() and | ||||
| * pmap_ts_referenced(). | * pmap_ts_referenced(). | ||||
| */ | */ | ||||
| if ((origpte & (PG_M | PG_RW)) == (PG_M | PG_RW)) | if ((origpte & (PG_M | PG_RW)) == (PG_M | PG_RW)) | ||||
| vm_page_dirty(om); | vm_page_dirty(om); | ||||
| if ((origpte & PG_A) != 0) | if ((origpte & PG_A) != 0) { | ||||
| pmap_invalidate_page_int(pmap, va); | |||||
| vm_page_aflag_set(om, PGA_REFERENCED); | vm_page_aflag_set(om, PGA_REFERENCED); | ||||
| } | |||||
| pv = pmap_pvh_remove(&om->md, pmap, va); | pv = pmap_pvh_remove(&om->md, pmap, va); | ||||
| KASSERT(pv != NULL, | KASSERT(pv != NULL, | ||||
| ("pmap_enter: no PV entry for %#x", va)); | ("pmap_enter: no PV entry for %#x", va)); | ||||
| if ((newpte & PG_MANAGED) == 0) | if ((newpte & PG_MANAGED) == 0) | ||||
| free_pv_entry(pmap, pv); | free_pv_entry(pmap, pv); | ||||
| if ((om->a.flags & PGA_WRITEABLE) != 0 && | if ((om->a.flags & PGA_WRITEABLE) != 0 && | ||||
| TAILQ_EMPTY(&om->md.pv_list) && | TAILQ_EMPTY(&om->md.pv_list) && | ||||
| ((om->flags & PG_FICTITIOUS) != 0 || | ((om->flags & PG_FICTITIOUS) != 0 || | ||||
| TAILQ_EMPTY(&pa_to_pvh(opa)->pv_list))) | TAILQ_EMPTY(&pa_to_pvh(opa)->pv_list))) | ||||
| vm_page_aflag_clear(om, PGA_WRITEABLE); | vm_page_aflag_clear(om, PGA_WRITEABLE); | ||||
| } | } else { | ||||
| if ((origpte & PG_A) != 0) | /* | ||||
| * Since this mapping is unmanaged, assume that PG_A | |||||
| * is set. | |||||
| */ | |||||
| pmap_invalidate_page_int(pmap, va); | pmap_invalidate_page_int(pmap, va); | ||||
| } | |||||
| origpte = 0; | origpte = 0; | ||||
| } else { | } else { | ||||
| /* | /* | ||||
| * Increment the counters. | * Increment the counters. | ||||
| */ | */ | ||||
| if ((newpte & PG_W) != 0) | if ((newpte & PG_W) != 0) | ||||
| pmap->pm_stats.wired_count++; | pmap->pm_stats.wired_count++; | ||||
| pmap->pm_stats.resident_count++; | pmap->pm_stats.resident_count++; | ||||
| ▲ Show 20 Lines • Show All 2,578 Lines • Show Last 20 Lines | |||||