Fedora kernel-2.6.17-1.2142_FC4 patched with stable patch-2.6.17.4-vs2.0.2-rc26.diff

[linux-2.6.git] / include / asm-sparc / pgtable.h

diff --git a/include/asm-sparc/pgtable.h b/include/asm-sparc/pgtable.h
index e62df8c..9eea8f4 100644 (file)
--- a/include/asm-sparc/pgtable.h
+++ b/include/asm-sparc/pgtable.h
@@ -63,7 +63,7 @@ BTFIXUPDEF_INT(page_kernel)
 #define PTRS_PER_PMD           BTFIXUP_SIMM13(ptrs_per_pmd)
 #define PTRS_PER_PGD           BTFIXUP_SIMM13(ptrs_per_pgd)
 #define USER_PTRS_PER_PGD      BTFIXUP_SIMM13(user_ptrs_per_pgd)
-#define FIRST_USER_PGD_NR      0
+#define FIRST_USER_ADDRESS     0
 #define PTE_SIZE               (PTRS_PER_PTE*4)
 
 #define PAGE_NONE      __pgprot(BTFIXUP_INT(page_none))
@@ -82,6 +82,8 @@ extern unsigned long page_kernel;
 /* Top-level page directory */
 extern pgd_t swapper_pg_dir[1024];
 
+extern void paging_init(void);
+
 /* Page table for 0-4MB for everybody, on the Sparc this
  * holds the same as on the i386.
  */
@@ -150,20 +152,22 @@ BTFIXUPDEF_CALL_CONST(unsigned long, pgd_page, pgd_t)
 BTFIXUPDEF_SETHI(none_mask)
 BTFIXUPDEF_CALL_CONST(int, pte_present, pte_t)
 BTFIXUPDEF_CALL(void, pte_clear, pte_t *)
+BTFIXUPDEF_CALL(int, pte_read, pte_t)
 
-extern __inline__ int pte_none(pte_t pte)
+static inline int pte_none(pte_t pte)
 {
        return !(pte_val(pte) & ~BTFIXUP_SETHI(none_mask));
 }
 
 #define pte_present(pte) BTFIXUP_CALL(pte_present)(pte)
-#define pte_clear(pte) BTFIXUP_CALL(pte_clear)(pte)
+#define pte_clear(mm,addr,pte) BTFIXUP_CALL(pte_clear)(pte)
+#define pte_read(pte) BTFIXUP_CALL(pte_read)(pte)
 
 BTFIXUPDEF_CALL_CONST(int, pmd_bad, pmd_t)
 BTFIXUPDEF_CALL_CONST(int, pmd_present, pmd_t)
 BTFIXUPDEF_CALL(void, pmd_clear, pmd_t *)
 
-extern __inline__ int pmd_none(pmd_t pmd)
+static inline int pmd_none(pmd_t pmd)
 {
        return !(pmd_val(pmd) & ~BTFIXUP_SETHI(none_mask));
 }
@@ -186,45 +190,24 @@ BTFIXUPDEF_CALL(void, pgd_clear, pgd_t *)
  * The following only work if pte_present() is true.
  * Undefined behaviour if not..
  */
-BTFIXUPDEF_HALF(pte_readi)
 BTFIXUPDEF_HALF(pte_writei)
 BTFIXUPDEF_HALF(pte_dirtyi)
 BTFIXUPDEF_HALF(pte_youngi)
 
-extern int pte_read(pte_t pte) __attribute_const__;
-extern __inline__ int pte_read(pte_t pte)
-{
-       switch (sparc_cpu_model){
-       case sun4:
-       case sun4c:
-               return pte_val(pte) & BTFIXUP_HALF(pte_readi);
-       case sun4d:
-       case sun4e:
-       case sun4m:
-               return !(pte_val(pte) & BTFIXUP_HALF(pte_readi));
-       /* pacify gcc warnings */
-       case sun4u:
-       case sun_unknown:
-       case ap1000:
-       default:
-               return 0;
-       }
-}
-
-extern int pte_write(pte_t pte) __attribute_const__;
-extern __inline__ int pte_write(pte_t pte)
+static int pte_write(pte_t pte) __attribute_const__;
+static inline int pte_write(pte_t pte)
 {
        return pte_val(pte) & BTFIXUP_HALF(pte_writei);
 }
 
-extern int pte_dirty(pte_t pte) __attribute_const__;
-extern __inline__ int pte_dirty(pte_t pte)
+static int pte_dirty(pte_t pte) __attribute_const__;
+static inline int pte_dirty(pte_t pte)
 {
        return pte_val(pte) & BTFIXUP_HALF(pte_dirtyi);
 }
 
-extern int pte_young(pte_t pte) __attribute_const__;
-extern __inline__ int pte_young(pte_t pte)
+static int pte_young(pte_t pte) __attribute_const__;
+static inline int pte_young(pte_t pte)
 {
        return pte_val(pte) & BTFIXUP_HALF(pte_youngi);
 }
@@ -234,8 +217,8 @@ extern __inline__ int pte_young(pte_t pte)
  */
 BTFIXUPDEF_HALF(pte_filei)
 
-extern int pte_file(pte_t pte) __attribute_const__;
-extern __inline__ int pte_file(pte_t pte)
+static int pte_file(pte_t pte) __attribute_const__;
+static inline int pte_file(pte_t pte)
 {
        return pte_val(pte) & BTFIXUP_HALF(pte_filei);
 }
@@ -246,20 +229,20 @@ BTFIXUPDEF_HALF(pte_wrprotecti)
 BTFIXUPDEF_HALF(pte_mkcleani)
 BTFIXUPDEF_HALF(pte_mkoldi)
 
-extern pte_t pte_wrprotect(pte_t pte) __attribute_const__;
-extern __inline__ pte_t pte_wrprotect(pte_t pte)
+static pte_t pte_wrprotect(pte_t pte) __attribute_const__;
+static inline pte_t pte_wrprotect(pte_t pte)
 {
        return __pte(pte_val(pte) & ~BTFIXUP_HALF(pte_wrprotecti));
 }
 
-extern pte_t pte_mkclean(pte_t pte) __attribute_const__;
-extern __inline__ pte_t pte_mkclean(pte_t pte)
+static pte_t pte_mkclean(pte_t pte) __attribute_const__;
+static inline pte_t pte_mkclean(pte_t pte)
 {
        return __pte(pte_val(pte) & ~BTFIXUP_HALF(pte_mkcleani));
 }
 
-extern pte_t pte_mkold(pte_t pte) __attribute_const__;
-extern __inline__ pte_t pte_mkold(pte_t pte)
+static pte_t pte_mkold(pte_t pte) __attribute_const__;
+static inline pte_t pte_mkold(pte_t pte)
 {
        return __pte(pte_val(pte) & ~BTFIXUP_HALF(pte_mkoldi));
 }
@@ -272,8 +255,6 @@ BTFIXUPDEF_CALL_CONST(pte_t, pte_mkyoung, pte_t)
 #define pte_mkdirty(pte) BTFIXUP_CALL(pte_mkdirty)(pte)
 #define pte_mkyoung(pte) BTFIXUP_CALL(pte_mkyoung)(pte)
 
-#define page_pte_prot(page, prot)      mk_pte(page, prot)
-#define page_pte(page)                 mk_pte(page, __pgprot(0))
 #define pfn_pte(pfn, prot)             mk_pte(pfn_to_page(pfn), prot)
 
 BTFIXUPDEF_CALL(unsigned long,  pte_pfn, pte_t)
@@ -288,15 +269,18 @@ BTFIXUPDEF_CALL_CONST(pte_t, mk_pte, struct page *, pgprot_t)
 
 BTFIXUPDEF_CALL_CONST(pte_t, mk_pte_phys, unsigned long, pgprot_t)
 BTFIXUPDEF_CALL_CONST(pte_t, mk_pte_io, unsigned long, pgprot_t, int)
+BTFIXUPDEF_CALL_CONST(pgprot_t, pgprot_noncached, pgprot_t)
 
 #define mk_pte(page,pgprot) BTFIXUP_CALL(mk_pte)(page,pgprot)
 #define mk_pte_phys(page,pgprot) BTFIXUP_CALL(mk_pte_phys)(page,pgprot)
 #define mk_pte_io(page,pgprot,space) BTFIXUP_CALL(mk_pte_io)(page,pgprot,space)
 
+#define pgprot_noncached(pgprot) BTFIXUP_CALL(pgprot_noncached)(pgprot)
+
 BTFIXUPDEF_INT(pte_modify_mask)
 
-extern pte_t pte_modify(pte_t pte, pgprot_t newprot) __attribute_const__;
-extern __inline__ pte_t pte_modify(pte_t pte, pgprot_t newprot)
+static pte_t pte_modify(pte_t pte, pgprot_t newprot) __attribute_const__;
+static inline pte_t pte_modify(pte_t pte, pgprot_t newprot)
 {
        return __pte((pte_val(pte) & BTFIXUP_INT(pte_modify_mask)) |
                pgprot_val(newprot));
@@ -328,9 +312,6 @@ BTFIXUPDEF_CALL(pte_t *, pte_offset_kernel, pmd_t *, unsigned long)
 #define pte_unmap(pte)         do{}while(0)
 #define pte_unmap_nested(pte)  do{}while(0)
 
-/* The permissions for pgprot_val to make a page mapped on the obio space */
-extern unsigned int pg_iobits;
-
 /* Certain architectures need to do special things when pte's
  * within a page table are directly modified.  Thus, the following
  * hook is made available.
@@ -339,6 +320,7 @@ extern unsigned int pg_iobits;
 BTFIXUPDEF_CALL(void, set_pte, pte_t *, pte_t)
 
 #define set_pte(ptep,pteval) BTFIXUP_CALL(set_pte)(ptep,pteval)
+#define set_pte_at(mm,addr,ptep,pteval) set_pte(ptep,pteval)
 
 struct seq_file;
 BTFIXUPDEF_CALL(void, mmu_info, struct seq_file *)
@@ -402,13 +384,13 @@ extern struct ctx_list ctx_used;        /* Head of used contexts list */
 
 #define NO_CONTEXT     -1
 
-extern __inline__ void remove_from_ctx_list(struct ctx_list *entry)
+static inline void remove_from_ctx_list(struct ctx_list *entry)
 {
        entry->next->prev = entry->prev;
        entry->prev->next = entry->next;
 }
 
-extern __inline__ void add_to_ctx_list(struct ctx_list *head, struct ctx_list *entry)
+static inline void add_to_ctx_list(struct ctx_list *head, struct ctx_list *entry)
 {
        entry->next = head;
        (entry->prev = head->prev)->next = entry;
@@ -417,7 +399,7 @@ extern __inline__ void add_to_ctx_list(struct ctx_list *head, struct ctx_list *e
 #define add_to_free_ctxlist(entry) add_to_ctx_list(&ctx_free, entry)
 #define add_to_used_ctxlist(entry) add_to_ctx_list(&ctx_used, entry)
 
-extern __inline__ unsigned long
+static inline unsigned long
 __get_phys (unsigned long addr)
 {
        switch (sparc_cpu_model){
@@ -432,7 +414,7 @@ __get_phys (unsigned long addr)
        }
 }
 
-extern __inline__ int
+static inline int
 __get_iospace (unsigned long addr)
 {
        switch (sparc_cpu_model){
@@ -453,8 +435,17 @@ extern unsigned long *sparc_valid_addr_bitmap;
 #define kern_addr_valid(addr) \
        (test_bit(__pa((unsigned long)(addr))>>20, sparc_valid_addr_bitmap))
 
-extern int io_remap_page_range(struct vm_area_struct *vma, unsigned long from, unsigned long to,
-                              unsigned long size, pgprot_t prot, int space);
+extern int io_remap_pfn_range(struct vm_area_struct *vma,
+                             unsigned long from, unsigned long pfn,
+                             unsigned long size, pgprot_t prot);
+
+/*
+ * For sparc32&64, the pfn in io_remap_pfn_range() carries <iospace> in
+ * its high 4 bits.  These macros/functions put it there or get it from there.
+ */
+#define MK_IOSPACE_PFN(space, pfn)     (pfn | (space << (BITS_PER_LONG - 4)))
+#define GET_IOSPACE(pfn)               (pfn >> (BITS_PER_LONG - 4))
+#define GET_PFN(pfn)                   (pfn & 0x0fffffffUL)
 
 #include <asm-generic/pgtable.h>