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[linux-2.6.git] / include / asm-parisc / page.h

diff --git a/include/asm-parisc/page.h b/include/asm-parisc/page.h
index 4a12692..54cc342 100644 (file)
--- a/include/asm-parisc/page.h
+++ b/include/asm-parisc/page.h
@@ -60,15 +60,10 @@ typedef struct { unsigned long pgprot; } pgprot_t;
 #else
 #define pte_flags(x)   ((x).flags)
 #endif
-
-/* These do not work lvalues, so make sure we don't use them as such. */
-#define pmd_val(x)     ((x).pmd + 0)
-#define pgd_val(x)     ((x).pgd + 0)
+#define pmd_val(x)     ((x).pmd)
+#define pgd_val(x)     ((x).pgd)
 #define pgprot_val(x)  ((x).pgprot)
 
-#define __pmd_val_set(x,n) (x).pmd = (n)
-#define __pgd_val_set(x,n) (x).pgd = (n)
-
 #define __pte(x)       ((pte_t) { (x) } )
 #define __pmd(x)       ((pmd_t) { (x) } )
 #define __pgd(x)       ((pgd_t) { (x) } )
@@ -88,6 +83,12 @@ extern __inline__ int get_order(unsigned long size)
        return order;
 }
 
+#ifdef __LP64__
+#define MAX_PHYSMEM_RANGES 8 /* Fix the size for now (current known max is 3) */
+#else
+#define MAX_PHYSMEM_RANGES 1 /* First range is only range that fits in 32 bits */
+#endif
+
 typedef struct __physmem_range {
        unsigned long start_pfn;
        unsigned long pages;       /* PAGE_SIZE pages */
@@ -143,16 +144,15 @@ extern int npmem_ranges;
 #define __pa(x)                        ((unsigned long)(x)-PAGE_OFFSET)
 #define __va(x)                        ((void *)((unsigned long)(x)+PAGE_OFFSET))
 
-#ifndef CONFIG_DISCONTIGMEM
 #define pfn_to_page(pfn)       (mem_map + (pfn))
 #define page_to_pfn(page)      ((unsigned long)((page) - mem_map))
 #define pfn_valid(pfn)         ((pfn) < max_mapnr)
-#endif /* CONFIG_DISCONTIGMEM */
-
 #define virt_addr_valid(kaddr) pfn_valid(__pa(kaddr) >> PAGE_SHIFT)
 
-#define page_to_phys(page)     (page_to_pfn(page) << PAGE_SHIFT)
-#define virt_to_page(kaddr)     pfn_to_page(__pa(kaddr) >> PAGE_SHIFT)
+#ifndef CONFIG_DISCONTIGMEM
+#define virt_to_page(kaddr)     (mem_map + (__pa(kaddr) >> PAGE_SHIFT))
+#define VALID_PAGE(page)       ((page - mem_map) < max_mapnr)
+#endif  /* !CONFIG_DISCONTIGMEM */
 
 #define VM_DATA_DEFAULT_FLAGS  (VM_READ | VM_WRITE | VM_EXEC | \
                                 VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)