Page MenuHomeFreeBSD
Differential D21592 Diff 63709 head/sys/arm64/arm64/pmap.c

Changeset View

Standalone View

View Options

head/sys/arm64/arm64/pmap.c

Show First 20 Lines • Show All 3,175 Lines • ▼ Show 20 Linespmap_enter(pmap_t pmap, vm_offset_t va, vm_page_t m, vm_prot_t prot,
pt_entry_t *l2, *l3; pt_entry_t *l2, *l3;
pv_entry_t pv; pv_entry_t pv;
vm_paddr_t opa, pa; vm_paddr_t opa, pa;
vm_page_t mpte, om; vm_page_t mpte, om;
boolean_t nosleep; boolean_t nosleep;
int lvl, rv; int lvl, rv;
va = trunc_page(va); va = trunc_page(va);
if ((m->oflags & VPO_UNMANAGED) == 0 && !vm_page_xbusied(m)) if ((m->oflags & VPO_UNMANAGED) == 0)
VM_OBJECT_ASSERT_LOCKED(m->object); VM_PAGE_OBJECT_BUSY_ASSERT(m);
pa = VM_PAGE_TO_PHYS(m); pa = VM_PAGE_TO_PHYS(m);
new_l3 = (pt_entry_t)(pa | ATTR_DEFAULT | ATTR_IDX(m->md.pv_memattr) | new_l3 = (pt_entry_t)(pa | ATTR_DEFAULT | ATTR_IDX(m->md.pv_memattr) |
L3_PAGE); L3_PAGE);
if ((prot & VM_PROT_WRITE) == 0) if ((prot & VM_PROT_WRITE) == 0)
new_l3 |= ATTR_AP(ATTR_AP_RO); new_l3 |= ATTR_AP(ATTR_AP_RO);
if ((prot & VM_PROT_EXECUTE) == 0 || m->md.pv_memattr == DEVICE_MEMORY) if ((prot & VM_PROT_EXECUTE) == 0 || m->md.pv_memattr == DEVICE_MEMORY)
new_l3 |= ATTR_XN; new_l3 |= ATTR_XN;
if ((flags & PMAP_ENTER_WIRED) != 0) if ((flags & PMAP_ENTER_WIRED) != 0)
▲ Show 20 Lines • Show All 2,777 Lines • Show Last 20 Lines