1 files changed, 5 insertions, 477 deletions

diff --git a/include/asm-sparc/pgtable.h b/include/asm-sparc/pgtable.h
index b63ac6b4119..63cdef53bc5 100644
--- a/include/asm-sparc/pgtable.h
+++ b/include/asm-sparc/pgtable.h
@@ -1,480 +1,8 @@
-#ifndef _SPARC_PGTABLE_H
-#define _SPARC_PGTABLE_H
-
-/*  asm-sparc/pgtable.h:  Defines and functions used to work
- *                        with Sparc page tables.
- *
- *  Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu)
- *  Copyright (C) 1998 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
- */
-
-#ifndef __ASSEMBLY__
-#include <asm-generic/4level-fixup.h>
-
-#include <linux/spinlock.h>
-#include <linux/swap.h>
-#include <asm/types.h>
-#ifdef CONFIG_SUN4
-#include <asm/pgtsun4.h>
+#ifndef ___ASM_SPARC_PGTABLE_H
+#define ___ASM_SPARC_PGTABLE_H
+#if defined(__sparc__) && defined(__arch64__)
+#include <asm-sparc/pgtable_64.h>
 #else
-#include <asm/pgtsun4c.h>
+#include <asm-sparc/pgtable_32.h>
 #endif
-#include <asm/pgtsrmmu.h>
-#include <asm/vac-ops.h>
-#include <asm/oplib.h>
-#include <asm/btfixup.h>
-#include <asm/system.h>
-
-
-struct vm_area_struct;
-struct page;
-
-extern void load_mmu(void);
-extern unsigned long calc_highpages(void);
-
-BTFIXUPDEF_SIMM13(pgdir_shift)
-BTFIXUPDEF_SETHI(pgdir_size)
-BTFIXUPDEF_SETHI(pgdir_mask)
-
-BTFIXUPDEF_SIMM13(ptrs_per_pmd)
-BTFIXUPDEF_SIMM13(ptrs_per_pgd)
-BTFIXUPDEF_SIMM13(user_ptrs_per_pgd)
-
-#define pte_ERROR(e)   __builtin_trap()
-#define pmd_ERROR(e)   __builtin_trap()
-#define pgd_ERROR(e)   __builtin_trap()
-
-BTFIXUPDEF_INT(page_none)
-BTFIXUPDEF_INT(page_copy)
-BTFIXUPDEF_INT(page_readonly)
-BTFIXUPDEF_INT(page_kernel)
-
-#define PMD_SHIFT               SUN4C_PMD_SHIFT
-#define PMD_SIZE                (1UL << PMD_SHIFT)
-#define PMD_MASK                (~(PMD_SIZE-1))
-#define PMD_ALIGN(__addr)       (((__addr) + ~PMD_MASK) & PMD_MASK)
-#define PGDIR_SHIFT             BTFIXUP_SIMM13(pgdir_shift)
-#define PGDIR_SIZE              BTFIXUP_SETHI(pgdir_size)
-#define PGDIR_MASK              BTFIXUP_SETHI(pgdir_mask)
-#define PTRS_PER_PTE            1024
-#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_ADDRESS      0
-#define PTE_SIZE                (PTRS_PER_PTE*4)
-
-#define PAGE_NONE      __pgprot(BTFIXUP_INT(page_none))
-extern pgprot_t PAGE_SHARED;
-#define PAGE_COPY      __pgprot(BTFIXUP_INT(page_copy))
-#define PAGE_READONLY  __pgprot(BTFIXUP_INT(page_readonly))
-
-extern unsigned long page_kernel;
-
-#ifdef MODULE
-#define PAGE_KERNEL     page_kernel
-#else
-#define PAGE_KERNEL    __pgprot(BTFIXUP_INT(page_kernel))
 #endif
-
-/* 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.
- */
-extern pte_t pg0[1024];
-extern pte_t pg1[1024];
-extern pte_t pg2[1024];
-extern pte_t pg3[1024];
-
-extern unsigned long ptr_in_current_pgd;
-
-/* Here is a trick, since mmap.c need the initializer elements for
- * protection_map[] to be constant at compile time, I set the following
- * to all zeros.  I set it to the real values after I link in the
- * appropriate MMU page table routines at boot time.
- */
-#define __P000  __pgprot(0)
-#define __P001  __pgprot(0)
-#define __P010  __pgprot(0)
-#define __P011  __pgprot(0)
-#define __P100  __pgprot(0)
-#define __P101  __pgprot(0)
-#define __P110  __pgprot(0)
-#define __P111  __pgprot(0)
-
-#define __S000  __pgprot(0)
-#define __S001  __pgprot(0)
-#define __S010  __pgprot(0)
-#define __S011  __pgprot(0)
-#define __S100  __pgprot(0)
-#define __S101  __pgprot(0)
-#define __S110  __pgprot(0)
-#define __S111  __pgprot(0)
-
-extern int num_contexts;
-
-/* First physical page can be anywhere, the following is needed so that
- * va-->pa and vice versa conversions work properly without performance
- * hit for all __pa()/__va() operations.
- */
-extern unsigned long phys_base;
-extern unsigned long pfn_base;
-
-/*
- * BAD_PAGETABLE is used when we need a bogus page-table, while
- * BAD_PAGE is used for a bogus page.
- *
- * ZERO_PAGE is a global shared page that is always zero: used
- * for zero-mapped memory areas etc..
- */
-extern pte_t * __bad_pagetable(void);
-extern pte_t __bad_page(void);
-extern unsigned long empty_zero_page;
-
-#define BAD_PAGETABLE __bad_pagetable()
-#define BAD_PAGE __bad_page()
-#define ZERO_PAGE(vaddr) (virt_to_page(&empty_zero_page))
-
-/*
- */
-BTFIXUPDEF_CALL_CONST(struct page *, pmd_page, pmd_t)
-BTFIXUPDEF_CALL_CONST(unsigned long, pgd_page_vaddr, pgd_t)
-
-#define pmd_page(pmd) BTFIXUP_CALL(pmd_page)(pmd)
-#define pgd_page_vaddr(pgd) BTFIXUP_CALL(pgd_page_vaddr)(pgd)
-
-BTFIXUPDEF_SETHI(none_mask)
-BTFIXUPDEF_CALL_CONST(int, pte_present, pte_t)
-BTFIXUPDEF_CALL(void, pte_clear, pte_t *)
-
-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(mm,addr,pte) BTFIXUP_CALL(pte_clear)(pte)
-
-BTFIXUPDEF_CALL_CONST(int, pmd_bad, pmd_t)
-BTFIXUPDEF_CALL_CONST(int, pmd_present, pmd_t)
-BTFIXUPDEF_CALL(void, pmd_clear, pmd_t *)
-
-static inline int pmd_none(pmd_t pmd)
-{
-        return !(pmd_val(pmd) & ~BTFIXUP_SETHI(none_mask));
-}
-
-#define pmd_bad(pmd) BTFIXUP_CALL(pmd_bad)(pmd)
-#define pmd_present(pmd) BTFIXUP_CALL(pmd_present)(pmd)
-#define pmd_clear(pmd) BTFIXUP_CALL(pmd_clear)(pmd)
-
-BTFIXUPDEF_CALL_CONST(int, pgd_none, pgd_t)
-BTFIXUPDEF_CALL_CONST(int, pgd_bad, pgd_t)
-BTFIXUPDEF_CALL_CONST(int, pgd_present, pgd_t)
-BTFIXUPDEF_CALL(void, pgd_clear, pgd_t *)
-
-#define pgd_none(pgd) BTFIXUP_CALL(pgd_none)(pgd)
-#define pgd_bad(pgd) BTFIXUP_CALL(pgd_bad)(pgd)
-#define pgd_present(pgd) BTFIXUP_CALL(pgd_present)(pgd)
-#define pgd_clear(pgd) BTFIXUP_CALL(pgd_clear)(pgd)
-
-/*
- * The following only work if pte_present() is true.
- * Undefined behaviour if not..
- */
-BTFIXUPDEF_HALF(pte_writei)
-BTFIXUPDEF_HALF(pte_dirtyi)
-BTFIXUPDEF_HALF(pte_youngi)
-
-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);
-}
-
-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);
-}
-
-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);
-}
-
-/*
- * The following only work if pte_present() is not true.
- */
-BTFIXUPDEF_HALF(pte_filei)
-
-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);
-}
-
-static inline int pte_special(pte_t pte)
-{
-        return 0;
-}
-
-/*
- */
-BTFIXUPDEF_HALF(pte_wrprotecti)
-BTFIXUPDEF_HALF(pte_mkcleani)
-BTFIXUPDEF_HALF(pte_mkoldi)
-
-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));
-}
-
-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));
-}
-
-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));
-}
-
-BTFIXUPDEF_CALL_CONST(pte_t, pte_mkwrite, pte_t)
-BTFIXUPDEF_CALL_CONST(pte_t, pte_mkdirty, pte_t)
-BTFIXUPDEF_CALL_CONST(pte_t, pte_mkyoung, pte_t)
-
-#define pte_mkwrite(pte) BTFIXUP_CALL(pte_mkwrite)(pte)
-#define pte_mkdirty(pte) BTFIXUP_CALL(pte_mkdirty)(pte)
-#define pte_mkyoung(pte) BTFIXUP_CALL(pte_mkyoung)(pte)
-
-#define pte_mkspecial(pte)    (pte)
-
-#define pfn_pte(pfn, prot)              mk_pte(pfn_to_page(pfn), prot)
-
-BTFIXUPDEF_CALL(unsigned long,   pte_pfn, pte_t)
-#define pte_pfn(pte) BTFIXUP_CALL(pte_pfn)(pte)
-#define pte_page(pte)   pfn_to_page(pte_pfn(pte))
-
-/*
- * Conversion functions: convert a page and protection to a page entry,
- * and a page entry and page directory to the page they refer to.
- */
-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)
-
-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 pgd_index(address) ((address) >> PGDIR_SHIFT)
-
-/* to find an entry in a page-table-directory */
-#define pgd_offset(mm, address) ((mm)->pgd + pgd_index(address))
-
-/* to find an entry in a kernel page-table-directory */
-#define pgd_offset_k(address) pgd_offset(&init_mm, address)
-
-/* Find an entry in the second-level page table.. */
-BTFIXUPDEF_CALL(pmd_t *, pmd_offset, pgd_t *, unsigned long)
-#define pmd_offset(dir,addr) BTFIXUP_CALL(pmd_offset)(dir,addr)
-
-/* Find an entry in the third-level page table.. */ 
-BTFIXUPDEF_CALL(pte_t *, pte_offset_kernel, pmd_t *, unsigned long)
-#define pte_offset_kernel(dir,addr) BTFIXUP_CALL(pte_offset_kernel)(dir,addr)
-
-/*
- * This shortcut works on sun4m (and sun4d) because the nocache area is static,
- * and sun4c is guaranteed to have no highmem anyway.
- */
-#define pte_offset_map(d, a)            pte_offset_kernel(d,a)
-#define pte_offset_map_nested(d, a)     pte_offset_kernel(d,a)
-
-#define pte_unmap(pte)          do{}while(0)
-#define pte_unmap_nested(pte)   do{}while(0)
-
-/* 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 mmu_info(p) BTFIXUP_CALL(mmu_info)(p)
-
-/* Fault handler stuff... */
-#define FAULT_CODE_PROT     0x1
-#define FAULT_CODE_WRITE    0x2
-#define FAULT_CODE_USER     0x4
-
-BTFIXUPDEF_CALL(void, update_mmu_cache, struct vm_area_struct *, unsigned long, pte_t)
-
-#define update_mmu_cache(vma,addr,pte) BTFIXUP_CALL(update_mmu_cache)(vma,addr,pte)
-
-BTFIXUPDEF_CALL(void, sparc_mapiorange, unsigned int, unsigned long,
-    unsigned long, unsigned int)
-BTFIXUPDEF_CALL(void, sparc_unmapiorange, unsigned long, unsigned int)
-#define sparc_mapiorange(bus,pa,va,len) BTFIXUP_CALL(sparc_mapiorange)(bus,pa,va,len)
-#define sparc_unmapiorange(va,len) BTFIXUP_CALL(sparc_unmapiorange)(va,len)
-
-extern int invalid_segment;
-
-/* Encode and de-code a swap entry */
-BTFIXUPDEF_CALL(unsigned long, __swp_type, swp_entry_t)
-BTFIXUPDEF_CALL(unsigned long, __swp_offset, swp_entry_t)
-BTFIXUPDEF_CALL(swp_entry_t, __swp_entry, unsigned long, unsigned long)
-
-#define __swp_type(__x)                 BTFIXUP_CALL(__swp_type)(__x)
-#define __swp_offset(__x)               BTFIXUP_CALL(__swp_offset)(__x)
-#define __swp_entry(__type,__off)       BTFIXUP_CALL(__swp_entry)(__type,__off)
-
-#define __pte_to_swp_entry(pte)         ((swp_entry_t) { pte_val(pte) })
-#define __swp_entry_to_pte(x)           ((pte_t) { (x).val })
-
-/* file-offset-in-pte helpers */
-BTFIXUPDEF_CALL(unsigned long, pte_to_pgoff, pte_t pte);
-BTFIXUPDEF_CALL(pte_t, pgoff_to_pte, unsigned long pgoff);
-
-#define pte_to_pgoff(pte) BTFIXUP_CALL(pte_to_pgoff)(pte)
-#define pgoff_to_pte(off) BTFIXUP_CALL(pgoff_to_pte)(off)
-
-/*
- * This is made a constant because mm/fremap.c required a constant.
- * Note that layout of these bits is different between sun4c.c and srmmu.c.
- */
-#define PTE_FILE_MAX_BITS 24
-
-/*
- */
-struct ctx_list {
-        struct ctx_list *next;
-        struct ctx_list *prev;
-        unsigned int ctx_number;
-        struct mm_struct *ctx_mm;
-};
-
-extern struct ctx_list *ctx_list_pool;  /* Dynamically allocated */
-extern struct ctx_list ctx_free;        /* Head of free list */
-extern struct ctx_list ctx_used;        /* Head of used contexts list */
-
-#define NO_CONTEXT     -1
-
-static inline void remove_from_ctx_list(struct ctx_list *entry)
-{
-        entry->next->prev = entry->prev;
-        entry->prev->next = entry->next;
-}
-
-static inline void add_to_ctx_list(struct ctx_list *head, struct ctx_list *entry)
-{
-        entry->next = head;
-        (entry->prev = head->prev)->next = entry;
-        head->prev = 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)
-
-static inline unsigned long
-__get_phys (unsigned long addr)
-{
-        switch (sparc_cpu_model){
-        case sun4:
-        case sun4c:
-                return sun4c_get_pte (addr) << PAGE_SHIFT;
-        case sun4m:
-        case sun4d:
-                return ((srmmu_get_pte (addr) & 0xffffff00) << 4);
-        default:
-                return 0;
-        }
-}
-
-static inline int
-__get_iospace (unsigned long addr)
-{
-        switch (sparc_cpu_model){
-        case sun4:
-        case sun4c:
-                return -1; /* Don't check iospace on sun4c */
-        case sun4m:
-        case sun4d:
-                return (srmmu_get_pte (addr) >> 28);
-        default:
-                return -1;
-        }
-}
-
-extern unsigned long *sparc_valid_addr_bitmap;
-
-/* Needs to be defined here and not in linux/mm.h, as it is arch dependent */
-#define kern_addr_valid(addr) \
-        (test_bit(__pa((unsigned long)(addr))>>20, sparc_valid_addr_bitmap))
-
-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)
-
-#define __HAVE_ARCH_PTEP_SET_ACCESS_FLAGS
-#define ptep_set_access_flags(__vma, __address, __ptep, __entry, __dirty) \
-({                                                                        \
-        int __changed = !pte_same(*(__ptep), __entry);                    \
-        if (__changed) {                                                  \
-                set_pte_at((__vma)->vm_mm, (__address), __ptep, __entry); \
-                flush_tlb_page(__vma, __address);                         \
-        }                                                                 \
-        (sparc_cpu_model == sun4c) || __changed;                          \
-})
-
-#include <asm-generic/pgtable.h>
-
-#endif /* !(__ASSEMBLY__) */
-
-#define VMALLOC_START           0xfe600000
-/* XXX Alter this when I get around to fixing sun4c - Anton */
-#define VMALLOC_END             0xffc00000
-
-
-/* We provide our own get_unmapped_area to cope with VA holes for userland */
-#define HAVE_ARCH_UNMAPPED_AREA
-
-/*
- * No page table caches to initialise
- */
-#define pgtable_cache_init()    do { } while (0)
-
-#endif /* !(_SPARC_PGTABLE_H) */