X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=include%2Fasm-powerpc%2Fpgtable-ppc32.h;h=7c97b5a08d082782807d33467c5864ce0a2a6db6;hb=c2a3b233450d5bc426c063ea2d8a74351db29ea4;hp=d1332bbcbd9ba29eee90b389cffdc6ea90d3e5ca;hpb=b297d520b9af536d5580ac505dd316be4cf5560c;p=linux-2.6

diff --git a/include/asm-powerpc/pgtable-ppc32.h b/include/asm-powerpc/pgtable-ppc32.h
index d1332bbcbd..7c97b5a08d 100644
--- a/include/asm-powerpc/pgtable-ppc32.h
+++ b/include/asm-powerpc/pgtable-ppc32.h
@@ -98,9 +98,6 @@ extern int icache_44x_need_flush;
 #define USER_PTRS_PER_PGD	(TASK_SIZE / PGDIR_SIZE)
 #define FIRST_USER_ADDRESS	0
 
-#define USER_PGD_PTRS (PAGE_OFFSET >> PGDIR_SHIFT)
-#define KERNEL_PGD_PTRS (PTRS_PER_PGD-USER_PGD_PTRS)
-
 #define pte_ERROR(e) \
 	printk("%s:%d: bad pte %llx.\n", __FILE__, __LINE__, \
 		(unsigned long long)pte_val(e))
@@ -339,14 +336,6 @@ extern int icache_44x_need_flush;
 #define _PMD_PAGE_MASK	0x000c
 #define _PMD_PAGE_8M	0x000c
 
-/*
- * The 8xx TLB miss handler allegedly sets _PAGE_ACCESSED in the PTE
- * for an address even if _PAGE_PRESENT is not set, as a performance
- * optimization.  This is a bug if you ever want to use swap unless
- * _PAGE_ACCESSED is 2, which it isn't, or unless you have 8xx-specific
- * definitions for __swp_entry etc. below, which would be gross.
- *  -- paulus
- */
 #define _PTE_NONE_MASK _PAGE_ACCESSED
 
 #else /* CONFIG_6xx */
@@ -428,7 +417,8 @@ extern int icache_44x_need_flush;
 #define _PAGE_IO	(_PAGE_KERNEL | _PAGE_NO_CACHE | _PAGE_GUARDED)
 #define _PAGE_RAM	(_PAGE_KERNEL | _PAGE_HWEXEC)
 
-#if defined(CONFIG_KGDB) || defined(CONFIG_XMON) || defined(CONFIG_BDI_SWITCH)
+#if defined(CONFIG_KGDB) || defined(CONFIG_XMON) || defined(CONFIG_BDI_SWITCH) ||\
+	defined(CONFIG_KPROBES)
 /* We want the debuggers to be able to set breakpoints anywhere, so
  * don't write protect the kernel text */
 #define _PAGE_RAM_TEXT	_PAGE_RAM
@@ -514,6 +504,7 @@ static inline int pte_write(pte_t pte)		{ return pte_val(pte) & _PAGE_RW; }
 static inline int pte_dirty(pte_t pte)		{ return pte_val(pte) & _PAGE_DIRTY; }
 static inline int pte_young(pte_t pte)		{ return pte_val(pte) & _PAGE_ACCESSED; }
 static inline int pte_file(pte_t pte)		{ return pte_val(pte) & _PAGE_FILE; }
+static inline int pte_special(pte_t pte)	{ return 0; }
 
 static inline void pte_uncache(pte_t pte)       { pte_val(pte) |= _PAGE_NO_CACHE; }
 static inline void pte_cache(pte_t pte)         { pte_val(pte) &= ~_PAGE_NO_CACHE; }
@@ -531,6 +522,8 @@ static inline pte_t pte_mkdirty(pte_t pte) {
 	pte_val(pte) |= _PAGE_DIRTY; return pte; }
 static inline pte_t pte_mkyoung(pte_t pte) {
 	pte_val(pte) |= _PAGE_ACCESSED; return pte; }
+static inline pte_t pte_mkspecial(pte_t pte) {
+	return pte; }
 
 static inline pte_t pte_modify(pte_t pte, pgprot_t newprot)
 {
@@ -700,7 +693,7 @@ extern pgprot_t phys_mem_access_prot(struct file *file, unsigned long pfn,
 #define pmd_page_vaddr(pmd)	\
 	((unsigned long) (pmd_val(pmd) & PAGE_MASK))
 #define pmd_page(pmd)		\
-	(mem_map + (__pa(pmd_val(pmd)) >> PAGE_SHIFT))
+	pfn_to_page((__pa(pmd_val(pmd)) >> PAGE_SHIFT))
 #endif
 
 /* to find an entry in a kernel page-table-directory */