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Differential D19097 Diff 53671 head/sys/arm64/arm64/pmap.c

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head/sys/arm64/arm64/pmap.c

Show First 20 Lines • Show All 2,856 Lines • ▼ Show 20 Linespmap_update_entry(pmap_t pmap, pd_entry_t *pte, pd_entry_t newpte,
critical_enter(); critical_enter();
/* Clear the old mapping */ /* Clear the old mapping */
pmap_load_clear(pte); pmap_load_clear(pte);
pmap_invalidate_range_nopin(pmap, va, va + size); pmap_invalidate_range_nopin(pmap, va, va + size);
/* Create the new mapping */ /* Create the new mapping */
pmap_load_store(pte, newpte); pmap_load_store(pte, newpte);
dsb(ishst);
critical_exit(); critical_exit();
intr_restore(intr); intr_restore(intr);
} }
#if VM_NRESERVLEVEL > 0 #if VM_NRESERVLEVEL > 0
/* /*
* After promotion from 512 4KB page mappings to a single 2MB page mapping, * After promotion from 512 4KB page mappings to a single 2MB page mapping,
▲ Show 20 Lines • Show All 403 Lines • ▼ Show 20 Lines if ((orig_l3 & ~ATTR_AF) != (new_l3 & ~ATTR_AF)) {
*/ */
CTR4(KTR_PMAP, "%s: already mapped page - " CTR4(KTR_PMAP, "%s: already mapped page - "
"pmap %p va 0x%#lx pte 0x%lx", "pmap %p va 0x%#lx pte 0x%lx",
__func__, pmap, va, new_l3); __func__, pmap, va, new_l3);
} }
} else { } else {
/* New mappig */ /* New mappig */
pmap_load_store(l3, new_l3); pmap_load_store(l3, new_l3);
dsb(ishst);
} }
#if VM_NRESERVLEVEL > 0 #if VM_NRESERVLEVEL > 0
if (pmap != pmap_kernel() && if (pmap != pmap_kernel() &&
(mpte == NULL || mpte->wire_count == NL3PG) && (mpte == NULL || mpte->wire_count == NL3PG) &&
pmap_ps_enabled(pmap) && pmap_ps_enabled(pmap) &&
(m->flags & PG_FICTITIOUS) == 0 && (m->flags & PG_FICTITIOUS) == 0 &&
vm_reserv_level_iffullpop(m) == 0) { vm_reserv_level_iffullpop(m) == 0) {
▲ Show 20 Lines • Show All 138 Lines • ▼ Show 20 Linespmap_enter_l2(pmap_t pmap, vm_offset_t va, pd_entry_t new_l2, u_int flags,
if ((new_l2 & ATTR_SW_WIRED) != 0) if ((new_l2 & ATTR_SW_WIRED) != 0)
pmap->pm_stats.wired_count += L2_SIZE / PAGE_SIZE; pmap->pm_stats.wired_count += L2_SIZE / PAGE_SIZE;
pmap->pm_stats.resident_count += L2_SIZE / PAGE_SIZE; pmap->pm_stats.resident_count += L2_SIZE / PAGE_SIZE;
/* /*
* Map the superpage. * Map the superpage.
*/ */
(void)pmap_load_store(l2, new_l2); (void)pmap_load_store(l2, new_l2);
dsb(ishst);
atomic_add_long(&pmap_l2_mappings, 1); atomic_add_long(&pmap_l2_mappings, 1);
CTR2(KTR_PMAP, "pmap_enter_l2: success for va %#lx in pmap %p", CTR2(KTR_PMAP, "pmap_enter_l2: success for va %#lx in pmap %p",
va, pmap); va, pmap);
return (KERN_SUCCESS); return (KERN_SUCCESS);
} }
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