[PATCH] Four level pagetables for ppc64

[linux-2.6-omap-h63xx.git] / include / asm-ppc64 / page.h

diff --git a/include/asm-ppc64/page.h b/include/asm-ppc64/page.h
index a5893a305a09bdb27a2b12b15980507b25a14d3e..7e7b18ea986e517c8084ec89560760ee5cf0e199 100644 (file)
--- a/include/asm-ppc64/page.h
+++ b/include/asm-ppc64/page.h
@@ -46,6 +46,7 @@
 
 #define ARCH_HAS_HUGEPAGE_ONLY_RANGE
 #define ARCH_HAS_PREPARE_HUGEPAGE_RANGE
+#define ARCH_HAS_SETCLEAR_HUGE_PTE
 
 #define touches_hugepage_low_range(mm, addr, len) \
        (LOW_ESID_MASK((addr), (len)) & mm->context.htlb_segs)
@@ -125,36 +126,42 @@ extern void copy_user_page(void *to, void *from, unsigned long vaddr, struct pag
  * Entries in the pte table are 64b, while entries in the pgd & pmd are 32b.
  */
 typedef struct { unsigned long pte; } pte_t;
-typedef struct { unsigned int  pmd; } pmd_t;
-typedef struct { unsigned int  pgd; } pgd_t;
+typedef struct { unsigned long pmd; } pmd_t;
+typedef struct { unsigned long pud; } pud_t;
+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)
+#define pud_val(x)     ((x).pud)
 #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) } )
+#define __pte(x)       ((pte_t) { (x) })
+#define __pmd(x)       ((pmd_t) { (x) })
+#define __pud(x)       ((pud_t) { (x) })
+#define __pgd(x)       ((pgd_t) { (x) })
+#define __pgprot(x)    ((pgprot_t) { (x) })
 
 #else
 /*
  * .. while these make it easier on the compiler
  */
 typedef unsigned long pte_t;
-typedef unsigned int  pmd_t;
-typedef unsigned int  pgd_t;
+typedef unsigned long pmd_t;
+typedef unsigned long pud_t;
+typedef unsigned long pgd_t;
 typedef unsigned long pgprot_t;
 
 #define pte_val(x)     (x)
 #define pmd_val(x)     (x)
+#define pud_val(x)     (x)
 #define pgd_val(x)     (x)
 #define pgprot_val(x)  (x)
 
 #define __pte(x)       (x)
 #define __pmd(x)       (x)
+#define __pud(x)       (x)
 #define __pgd(x)       (x)
 #define __pgprot(x)    (x)
 
@@ -208,9 +215,6 @@ extern u64 ppc64_pft_size;          /* Log 2 of page table size */
 #define USER_REGION_ID     (0UL)
 #define REGION_ID(ea)     (((unsigned long)(ea)) >> REGION_SHIFT)
 
-#define __bpn_to_ba(x) ((((unsigned long)(x)) << PAGE_SHIFT) + KERNELBASE)
-#define __ba_to_bpn(x) ((((unsigned long)(x)) & ~REGION_MASK) >> PAGE_SHIFT)
-
 #define __va(x) ((void *)((unsigned long)(x) + KERNELBASE))
 
 #ifdef CONFIG_DISCONTIGMEM