Unifying the Lunaix's Physical Memory Model (#28)

[lunaix-os.git] / lunaix-os / arch / i386 / includes / sys / mm / pagetable.h

diff --git a/lunaix-os/arch/i386/includes/sys/mm/pagetable.h b/lunaix-os/arch/i386/includes/sys/mm/pagetable.h
index 4fd9439aacd59f8cc98d101892749b32fc9a9878..2b188cd8d43ae42a3c42cd0bf07cf1b0c1886368 100644 (file)
--- a/lunaix-os/arch/i386/includes/sys/mm/pagetable.h
+++ b/lunaix-os/arch/i386/includes/sys/mm/pagetable.h
@@ -150,12 +150,24 @@ pte_setpaddr(pte_t pte, ptr_t paddr)
     return __mkpte_from((pte.val & _PAGE_BASE_MASK) | (paddr & ~_PAGE_BASE_MASK));
 }
 
+static inline pte_t
+pte_setppfn(pte_t pte, pfn_t ppfn)
+{
+    return __mkpte_from((pte.val & _PAGE_BASE_MASK) | (ppfn * PAGE_SIZE));
+}
+
 static inline ptr_t
 pte_paddr(pte_t pte)
 {
     return pte.val & ~_PAGE_BASE_MASK;
 }
 
+static inline pfn_t
+pte_ppfn(pte_t pte)
+{
+    return pte.val >> _PAGE_BASE_SHIFT;
+}
+
 static inline pte_t
 pte_setprot(pte_t pte, ptr_t prot)
 {