* Copyright (C) 1998 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
*/
+#include <asm-generic/4level-fixup.h>
+
#include <linux/config.h>
#include <linux/spinlock.h>
#include <linux/swap.h>
#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))
/* 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.
*/
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));
}
BTFIXUPDEF_HALF(pte_dirtyi)
BTFIXUPDEF_HALF(pte_youngi)
-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);
}
*/
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);
}
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));
}
#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)
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));
#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.
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 *)
#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;
#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){
}
}
-extern __inline__ int
+static inline int
__get_iospace (unsigned long addr)
{
switch (sparc_cpu_model){
#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>