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sys/riscv/riscv/pmap.c
Show First 20 Lines • Show All 877 Lines • ▼ Show 20 Lines | |||||
retry: | retry: | ||||
l3p = pmap_l3(pmap, va); | l3p = pmap_l3(pmap, va); | ||||
if (l3p != NULL && (l3 = pmap_load(l3p)) != 0) { | if (l3p != NULL && (l3 = pmap_load(l3p)) != 0) { | ||||
if ((l3 & PTE_W) != 0 || (prot & VM_PROT_WRITE) == 0) { | if ((l3 & PTE_W) != 0 || (prot & VM_PROT_WRITE) == 0) { | ||||
phys = PTE_TO_PHYS(l3); | phys = PTE_TO_PHYS(l3); | ||||
if (vm_page_pa_tryrelock(pmap, phys, &pa)) | if (vm_page_pa_tryrelock(pmap, phys, &pa)) | ||||
goto retry; | goto retry; | ||||
m = PHYS_TO_VM_PAGE(phys); | m = PHYS_TO_VM_PAGE(phys); | ||||
vm_page_hold(m); | vm_page_wire(m); | ||||
} | } | ||||
} | } | ||||
PA_UNLOCK_COND(pa); | PA_UNLOCK_COND(pa); | ||||
PMAP_UNLOCK(pmap); | PMAP_UNLOCK(pmap); | ||||
return (m); | return (m); | ||||
} | } | ||||
vm_paddr_t | vm_paddr_t | ||||
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