X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=include%2Fasm-powerpc%2Fpgtable-ppc32.h;h=d1332bbcbd9ba29eee90b389cffdc6ea90d3e5ca;hb=bbce0b5ca2884b44dbfffff77e876a90b4184516;hp=b2b880a6f63166470db14ca35dedc3370df5b500;hpb=bf22f6fe2d72b4d7e9035be8ceb340414cf490e3;p=linux-2.6

diff --git a/include/asm-powerpc/pgtable-ppc32.h b/include/asm-powerpc/pgtable-ppc32.h
index b2b880a6f6..d1332bbcbd 100644
--- a/include/asm-powerpc/pgtable-ppc32.h
+++ b/include/asm-powerpc/pgtable-ppc32.h
@@ -11,6 +11,11 @@
 extern unsigned long va_to_phys(unsigned long address);
 extern pte_t *va_to_pte(unsigned long address);
 extern unsigned long ioremap_bot, ioremap_base;
+
+#ifdef CONFIG_44x
+extern int icache_44x_need_flush;
+#endif
+
 #endif /* __ASSEMBLY__ */
 
 /*
@@ -81,6 +86,11 @@ extern unsigned long ioremap_bot, ioremap_base;
  * entries per page directory level: our page-table tree is two-level, so
  * we don't really have any PMD directory.
  */
+#ifndef __ASSEMBLY__
+#define PTE_TABLE_SIZE	(sizeof(pte_t) << PTE_SHIFT)
+#define PGD_TABLE_SIZE	(sizeof(pgd_t) << (32 - PGDIR_SHIFT))
+#endif	/* __ASSEMBLY__ */
+
 #define PTRS_PER_PTE	(1 << PTE_SHIFT)
 #define PTRS_PER_PMD	1
 #define PTRS_PER_PGD	(1 << (32 - PGDIR_SHIFT))
@@ -500,9 +510,7 @@ extern unsigned long bad_call_to_PMD_PAGE_SIZE(void);
  * The following only work if pte_present() is true.
  * Undefined behaviour if not..
  */
-static inline int pte_read(pte_t pte)		{ return pte_val(pte) & _PAGE_USER; }
 static inline int pte_write(pte_t pte)		{ return pte_val(pte) & _PAGE_RW; }
-static inline int pte_exec(pte_t pte)		{ return pte_val(pte) & _PAGE_EXEC; }
 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; }
@@ -510,21 +518,13 @@ static inline int pte_file(pte_t pte)		{ return pte_val(pte) & _PAGE_FILE; }
 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; }
 
-static inline pte_t pte_rdprotect(pte_t pte) {
-	pte_val(pte) &= ~_PAGE_USER; return pte; }
 static inline pte_t pte_wrprotect(pte_t pte) {
 	pte_val(pte) &= ~(_PAGE_RW | _PAGE_HWWRITE); return pte; }
-static inline pte_t pte_exprotect(pte_t pte) {
-	pte_val(pte) &= ~_PAGE_EXEC; return pte; }
 static inline pte_t pte_mkclean(pte_t pte) {
 	pte_val(pte) &= ~(_PAGE_DIRTY | _PAGE_HWWRITE); return pte; }
 static inline pte_t pte_mkold(pte_t pte) {
 	pte_val(pte) &= ~_PAGE_ACCESSED; return pte; }
 
-static inline pte_t pte_mkread(pte_t pte) {
-	pte_val(pte) |= _PAGE_USER; return pte; }
-static inline pte_t pte_mkexec(pte_t pte) {
-	pte_val(pte) |= _PAGE_USER | _PAGE_EXEC; return pte; }
 static inline pte_t pte_mkwrite(pte_t pte) {
 	pte_val(pte) |= _PAGE_RW; return pte; }
 static inline pte_t pte_mkdirty(pte_t pte) {
@@ -572,6 +572,10 @@ static inline unsigned long pte_update(pte_t *p, unsigned long clr,
 	: "=&r" (old), "=&r" (tmp), "=m" (*p)
 	: "r" (p), "r" (clr), "r" (set), "m" (*p)
 	: "cc" );
+#ifdef CONFIG_44x
+	if ((old & _PAGE_USER) && (old & _PAGE_HWEXEC))
+		icache_44x_need_flush = 1;
+#endif
 	return old;
 }
 #else
@@ -592,6 +596,10 @@ static inline unsigned long long pte_update(pte_t *p, unsigned long clr,
 	: "=&r" (old), "=&r" (tmp), "=m" (*p)
 	: "r" (p), "r" ((unsigned long)(p) + 4), "r" (clr), "r" (set), "m" (*p)
 	: "cc" );
+#ifdef CONFIG_44x
+	if ((old & _PAGE_USER) && (old & _PAGE_HWEXEC))
+		icache_44x_need_flush = 1;
+#endif
 	return old;
 }
 #endif
@@ -631,13 +639,6 @@ static inline int __ptep_test_and_clear_young(unsigned int context, unsigned lon
 #define ptep_test_and_clear_young(__vma, __addr, __ptep) \
 	__ptep_test_and_clear_young((__vma)->vm_mm->context.id, __addr, __ptep)
 
-#define __HAVE_ARCH_PTEP_TEST_AND_CLEAR_DIRTY
-static inline int ptep_test_and_clear_dirty(struct vm_area_struct *vma,
-					    unsigned long addr, pte_t *ptep)
-{
-	return (pte_update(ptep, (_PAGE_DIRTY | _PAGE_HWWRITE), 0) & _PAGE_DIRTY) != 0;
-}
-
 #define __HAVE_ARCH_PTEP_GET_AND_CLEAR
 static inline pte_t ptep_get_and_clear(struct mm_struct *mm, unsigned long addr,
 				       pte_t *ptep)