-#ifndef ARCH_HAS_GET_ORDER
-static inline __attribute__((const))
-int __get_order(unsigned long size, int page_shift)
-{
-#if BITS_PER_LONG == 32 && defined(ARCH_HAS_ILOG2_U32)
- int order = __ilog2_u32(size) - page_shift;
- return order >= 0 ? order : 0;
-#elif BITS_PER_LONG == 64 && defined(ARCH_HAS_ILOG2_U64)
- int order = __ilog2_u64(size) - page_shift;
- return order >= 0 ? order : 0;
+typedef struct {
+ unsigned long pte;
+} pte_t;
+typedef struct {
+ unsigned long pmd[16];
+} pmd_t;
+typedef struct {
+ unsigned long pgd;
+} pgd_t;
+typedef struct {
+ unsigned long pgprot;
+} pgprot_t;
+typedef struct page *pgtable_t;
+
+#define pte_val(x) ((x).pte)
+#define pmd_val(x) ((&x)->pmd[0])
+#define pgd_val(x) ((x).pgd)
+#define pgprot_val(x) ((x).pgprot)
+
+#define __pte(x) ((pte_t) { (x) } )
+#define __pmd(x) ((pmd_t) { (x) } )
+#define __pgd(x) ((pgd_t) { (x) } )
+#define __pgprot(x) ((pgprot_t) { (x) } )
+
+extern unsigned long memory_start;
+extern unsigned long memory_end;
+
+#endif /* !__ASSEMBLY__ */
+
+#ifdef CONFIG_KERNEL_RAM_BASE_ADDRESS
+#define PAGE_OFFSET (CONFIG_KERNEL_RAM_BASE_ADDRESS)