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-rw-r--r--include/asm-ia64/page.h18
1 files changed, 12 insertions, 6 deletions
diff --git a/include/asm-ia64/page.h b/include/asm-ia64/page.h
index 9edffad8c28..5e6362a786b 100644
--- a/include/asm-ia64/page.h
+++ b/include/asm-ia64/page.h
@@ -47,8 +47,6 @@
#define PERCPU_PAGE_SHIFT 16 /* log2() of max. size of per-CPU area */
#define PERCPU_PAGE_SIZE (__IA64_UL_CONST(1) << PERCPU_PAGE_SHIFT)
-#define RGN_MAP_LIMIT ((1UL << (4*PAGE_SHIFT - 12)) - PAGE_SIZE) /* per region addr limit */
-
#ifdef CONFIG_HUGETLB_PAGE
# define HPAGE_REGION_BASE RGN_BASE(RGN_HPAGE)
@@ -102,24 +100,26 @@ do { \
#ifdef CONFIG_VIRTUAL_MEM_MAP
extern int ia64_pfn_valid (unsigned long pfn);
-#else
+#elif defined(CONFIG_FLATMEM)
# define ia64_pfn_valid(pfn) 1
#endif
-#ifndef CONFIG_DISCONTIGMEM
+#ifdef CONFIG_FLATMEM
# define pfn_valid(pfn) (((pfn) < max_mapnr) && ia64_pfn_valid(pfn))
# define page_to_pfn(page) ((unsigned long) (page - mem_map))
# define pfn_to_page(pfn) (mem_map + (pfn))
-#else
+#elif defined(CONFIG_DISCONTIGMEM)
extern struct page *vmem_map;
+extern unsigned long min_low_pfn;
extern unsigned long max_low_pfn;
-# define pfn_valid(pfn) (((pfn) < max_low_pfn) && ia64_pfn_valid(pfn))
+# define pfn_valid(pfn) (((pfn) >= min_low_pfn) && ((pfn) < max_low_pfn) && ia64_pfn_valid(pfn))
# define page_to_pfn(page) ((unsigned long) (page - vmem_map))
# define pfn_to_page(pfn) (vmem_map + (pfn))
#endif
#define page_to_phys(page) (page_to_pfn(page) << PAGE_SHIFT)
#define virt_to_page(kaddr) pfn_to_page(__pa(kaddr) >> PAGE_SHIFT)
+#define pfn_to_kaddr(pfn) __va((pfn) << PAGE_SHIFT)
typedef union ia64_va {
struct {
@@ -174,11 +174,17 @@ get_order (unsigned long size)
*/
typedef struct { unsigned long pte; } pte_t;
typedef struct { unsigned long pmd; } pmd_t;
+#ifdef CONFIG_PGTABLE_4
+ typedef struct { unsigned long pud; } pud_t;
+#endif
typedef struct { unsigned long pgd; } pgd_t;
typedef struct { unsigned long pgprot; } pgprot_t;
# define pte_val(x) ((x).pte)
# define pmd_val(x) ((x).pmd)
+#ifdef CONFIG_PGTABLE_4
+# define pud_val(x) ((x).pud)
+#endif
# define pgd_val(x) ((x).pgd)
# define pgprot_val(x) ((x).pgprot)