X-Git-Url: http://git.cascardo.info/?a=blobdiff_plain;f=include%2Fasm-mips%2Fpgtable.h;h=782221e57c0a9d530a2339529f859984cde9998e;hb=7e675137a8e1a4d45822746456dd389b65745bf6;hp=27d77d981937008b2e0de983e9f11867c8102c4d;hpb=6ec129c3a2f8b38bc37e42348470ccfcb7460146;p=cascardo%2Flinux.git

diff --git a/include/asm-mips/pgtable.h b/include/asm-mips/pgtable.h
index 27d77d981937..782221e57c0a 100644
--- a/include/asm-mips/pgtable.h
+++ b/include/asm-mips/pgtable.h
@@ -103,7 +103,7 @@ static inline void set_pte(pte_t *ptep, pte_t pte)
 		}
 	}
 }
-#define set_pte_at(mm,addr,ptep,pteval) set_pte(ptep,pteval)
+#define set_pte_at(mm, addr, ptep, pteval) set_pte(ptep, pteval)
 
 static inline void pte_clear(struct mm_struct *mm, unsigned long addr, pte_t *ptep)
 {
@@ -140,7 +140,7 @@ static inline void set_pte(pte_t *ptep, pte_t pteval)
 	}
 #endif
 }
-#define set_pte_at(mm,addr,ptep,pteval) set_pte(ptep,pteval)
+#define set_pte_at(mm, addr, ptep, pteval) set_pte(ptep, pteval)
 
 static inline void pte_clear(struct mm_struct *mm, unsigned long addr, pte_t *ptep)
 {
@@ -168,19 +168,21 @@ static inline void pte_clear(struct mm_struct *mm, unsigned long addr, pte_t *pt
 #define set_pud(pudptr, pudval) do { *(pudptr) = (pudval); } while(0)
 #endif
 
-#define PGD_T_LOG2	ffz(~sizeof(pgd_t))
-#define PMD_T_LOG2	ffz(~sizeof(pmd_t))
-#define PTE_T_LOG2	ffz(~sizeof(pte_t))
+#define PGD_T_LOG2	(__builtin_ffs(sizeof(pgd_t)) - 1)
+#define PMD_T_LOG2	(__builtin_ffs(sizeof(pmd_t)) - 1)
+#define PTE_T_LOG2	(__builtin_ffs(sizeof(pte_t)) - 1)
 
-extern pgd_t swapper_pg_dir[PTRS_PER_PGD];
+/*
+ * We used to declare this array with size but gcc 3.3 and older are not able
+ * to find that this expression is a constant, so the size is dropped.
+ */
+extern pgd_t swapper_pg_dir[];
 
 /*
  * The following only work if pte_present() is true.
  * Undefined behaviour if not..
  */
-static inline int pte_user(pte_t pte)	{ BUG(); return 0; }
 #if defined(CONFIG_64BIT_PHYS_ADDR) && defined(CONFIG_CPU_MIPS32_R1)
-static inline int pte_read(pte_t pte)	{ return pte.pte_low & _PAGE_READ; }
 static inline int pte_write(pte_t pte)	{ return pte.pte_low & _PAGE_WRITE; }
 static inline int pte_dirty(pte_t pte)	{ return pte.pte_low & _PAGE_MODIFIED; }
 static inline int pte_young(pte_t pte)	{ return pte.pte_low & _PAGE_ACCESSED; }
@@ -193,13 +195,6 @@ static inline pte_t pte_wrprotect(pte_t pte)
 	return pte;
 }
 
-static inline pte_t pte_rdprotect(pte_t pte)
-{
-	pte.pte_low  &= ~(_PAGE_READ | _PAGE_SILENT_READ);
-	pte.pte_high &= ~_PAGE_SILENT_READ;
-	return pte;
-}
-
 static inline pte_t pte_mkclean(pte_t pte)
 {
 	pte.pte_low  &= ~(_PAGE_MODIFIED | _PAGE_SILENT_WRITE);
@@ -224,16 +219,6 @@ static inline pte_t pte_mkwrite(pte_t pte)
 	return pte;
 }
 
-static inline pte_t pte_mkread(pte_t pte)
-{
-	pte.pte_low |= _PAGE_READ;
-	if (pte.pte_low & _PAGE_ACCESSED) {
-		pte.pte_low  |= _PAGE_SILENT_READ;
-		pte.pte_high |= _PAGE_SILENT_READ;
-	}
-	return pte;
-}
-
 static inline pte_t pte_mkdirty(pte_t pte)
 {
 	pte.pte_low |= _PAGE_MODIFIED;
@@ -253,7 +238,6 @@ static inline pte_t pte_mkyoung(pte_t pte)
 	return pte;
 }
 #else
-static inline int pte_read(pte_t pte)	{ return pte_val(pte) & _PAGE_READ; }
 static inline int pte_write(pte_t pte)	{ return pte_val(pte) & _PAGE_WRITE; }
 static inline int pte_dirty(pte_t pte)	{ return pte_val(pte) & _PAGE_MODIFIED; }
 static inline int pte_young(pte_t pte)	{ return pte_val(pte) & _PAGE_ACCESSED; }
@@ -265,12 +249,6 @@ static inline pte_t pte_wrprotect(pte_t pte)
 	return pte;
 }
 
-static inline pte_t pte_rdprotect(pte_t pte)
-{
-	pte_val(pte) &= ~(_PAGE_READ | _PAGE_SILENT_READ);
-	return pte;
-}
-
 static inline pte_t pte_mkclean(pte_t pte)
 {
 	pte_val(pte) &= ~(_PAGE_MODIFIED|_PAGE_SILENT_WRITE);
@@ -291,14 +269,6 @@ static inline pte_t pte_mkwrite(pte_t pte)
 	return pte;
 }
 
-static inline pte_t pte_mkread(pte_t pte)
-{
-	pte_val(pte) |= _PAGE_READ;
-	if (pte_val(pte) & _PAGE_ACCESSED)
-		pte_val(pte) |= _PAGE_SILENT_READ;
-	return pte;
-}
-
 static inline pte_t pte_mkdirty(pte_t pte)
 {
 	pte_val(pte) |= _PAGE_MODIFIED;
@@ -315,6 +285,8 @@ static inline pte_t pte_mkyoung(pte_t pte)
 	return pte;
 }
 #endif
+static inline int pte_special(pte_t pte)	{ return 0; }
+static inline pte_t pte_mkspecial(pte_t pte)	{ return pte; }
 
 /*
  * Macro to make mark a page protection value as "uncacheable".  Note