Merge branch 'upstream'

[linux-2.6-omap-h63xx.git] / include / asm-sparc64 / page.h

diff --git a/include/asm-sparc64/page.h b/include/asm-sparc64/page.h
index 5426bb28a9931956a46585268a4b86e2703a50f2..aabb219067243a353b41726297e61d9544b59187 100644 (file)
--- a/include/asm-sparc64/page.h
+++ b/include/asm-sparc64/page.h
@@ -30,6 +30,23 @@
 
 #ifdef __KERNEL__
 
+#if defined(CONFIG_HUGETLB_PAGE_SIZE_4MB)
+#define HPAGE_SHIFT            22
+#elif defined(CONFIG_HUGETLB_PAGE_SIZE_512K)
+#define HPAGE_SHIFT            19
+#elif defined(CONFIG_HUGETLB_PAGE_SIZE_64K)
+#define HPAGE_SHIFT            16
+#endif
+
+#ifdef CONFIG_HUGETLB_PAGE
+#define HPAGE_SIZE             (_AC(1,UL) << HPAGE_SHIFT)
+#define HPAGE_MASK             (~(HPAGE_SIZE - 1UL))
+#define HUGETLB_PAGE_ORDER     (HPAGE_SHIFT - PAGE_SHIFT)
+#define ARCH_HAS_SETCLEAR_HUGE_PTE
+#define ARCH_HAS_HUGETLB_PREFAULT_HOOK
+#define HAVE_ARCH_HUGETLB_UNMAPPED_AREA
+#endif
+
 #ifndef __ASSEMBLY__
 
 extern void _clear_page(void *page);
@@ -90,24 +107,11 @@ typedef unsigned long pgprot_t;
 
 #endif /* (STRICT_MM_TYPECHECKS) */
 
-#if defined(CONFIG_HUGETLB_PAGE_SIZE_4MB)
-#define HPAGE_SHIFT            22
-#elif defined(CONFIG_HUGETLB_PAGE_SIZE_512K)
-#define HPAGE_SHIFT            19
-#elif defined(CONFIG_HUGETLB_PAGE_SIZE_64K)
-#define HPAGE_SHIFT            16
-#endif
-
-#ifdef CONFIG_HUGETLB_PAGE
-#define HPAGE_SIZE             (_AC(1,UL) << HPAGE_SHIFT)
-#define HPAGE_MASK             (~(HPAGE_SIZE - 1UL))
-#define HUGETLB_PAGE_ORDER     (HPAGE_SHIFT - PAGE_SHIFT)
-#define ARCH_HAS_SETCLEAR_HUGE_PTE
-#define ARCH_HAS_HUGETLB_PREFAULT_HOOK
-#endif
-
 #define TASK_UNMAPPED_BASE     (test_thread_flag(TIF_32BIT) ? \
-                                (_AC(0x0000000070000000,UL)) : (PAGE_OFFSET))
+                                (_AC(0x0000000070000000,UL)) : \
+                                (_AC(0xfffff80000000000,UL) + (1UL << 32UL)))
+
+#include <asm-generic/memory_model.h>
 
 #endif /* !(__ASSEMBLY__) */
 
@@ -124,17 +128,10 @@ typedef unsigned long pgprot_t;
 #define __pa(x)                        ((unsigned long)(x) - PAGE_OFFSET)
 #define __va(x)                        ((void *)((unsigned long) (x) + PAGE_OFFSET))
 
-/* PFNs are real physical page numbers.  However, mem_map only begins to record
- * per-page information starting at pfn_base.  This is to handle systems where
- * the first physical page in the machine is at some huge physical address,
- * such as 4GB.   This is common on a partitioned E10000, for example.
- */
-extern struct page *pfn_to_page(unsigned long pfn);
-extern unsigned long page_to_pfn(struct page *);
+#define pfn_to_kaddr(pfn)      __va((pfn) << PAGE_SHIFT)
 
 #define virt_to_page(kaddr)    pfn_to_page(__pa(kaddr)>>PAGE_SHIFT)
 
-#define pfn_valid(pfn)         (((pfn)-(pfn_base)) < max_mapnr)
 #define virt_addr_valid(kaddr) pfn_valid(__pa(kaddr) >> PAGE_SHIFT)
 
 #define virt_to_phys __pa