summaryrefslogtreecommitdiff
path: root/include/asm-sh/pgtable.h
diff options
context:
space:
mode:
Diffstat (limited to 'include/asm-sh/pgtable.h')
-rw-r--r--include/asm-sh/pgtable.h152
1 files changed, 0 insertions, 152 deletions
diff --git a/include/asm-sh/pgtable.h b/include/asm-sh/pgtable.h
deleted file mode 100644
index a4a8f8b9346..00000000000
--- a/include/asm-sh/pgtable.h
+++ /dev/null
@@ -1,152 +0,0 @@
-/*
- * This file contains the functions and defines necessary to modify and
- * use the SuperH page table tree.
- *
- * Copyright (C) 1999 Niibe Yutaka
- * Copyright (C) 2002 - 2007 Paul Mundt
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License. See the file "COPYING" in the main directory of this
- * archive for more details.
- */
-#ifndef __ASM_SH_PGTABLE_H
-#define __ASM_SH_PGTABLE_H
-
-#include <asm-generic/pgtable-nopmd.h>
-#include <asm/page.h>
-
-#ifndef __ASSEMBLY__
-#include <asm/addrspace.h>
-#include <asm/fixmap.h>
-
-/*
- * ZERO_PAGE is a global shared page that is always zero: used
- * for zero-mapped memory areas etc..
- */
-extern unsigned long empty_zero_page[PAGE_SIZE / sizeof(unsigned long)];
-#define ZERO_PAGE(vaddr) (virt_to_page(empty_zero_page))
-
-#endif /* !__ASSEMBLY__ */
-
-/*
- * Effective and physical address definitions, to aid with sign
- * extension.
- */
-#define NEFF 32
-#define NEFF_SIGN (1LL << (NEFF - 1))
-#define NEFF_MASK (-1LL << NEFF)
-
-#ifdef CONFIG_29BIT
-#define NPHYS 29
-#else
-#define NPHYS 32
-#endif
-
-#define NPHYS_SIGN (1LL << (NPHYS - 1))
-#define NPHYS_MASK (-1LL << NPHYS)
-
-/*
- * traditional two-level paging structure
- */
-/* PTE bits */
-#if defined(CONFIG_X2TLB) || defined(CONFIG_SUPERH64)
-# define PTE_MAGNITUDE 3 /* 64-bit PTEs on extended mode SH-X2 TLB */
-#else
-# define PTE_MAGNITUDE 2 /* 32-bit PTEs */
-#endif
-#define PTE_SHIFT PAGE_SHIFT
-#define PTE_BITS (PTE_SHIFT - PTE_MAGNITUDE)
-
-/* PGD bits */
-#define PGDIR_SHIFT (PTE_SHIFT + PTE_BITS)
-#define PGDIR_SIZE (1UL << PGDIR_SHIFT)
-#define PGDIR_MASK (~(PGDIR_SIZE-1))
-
-/* Entries per level */
-#define PTRS_PER_PTE (PAGE_SIZE / (1 << PTE_MAGNITUDE))
-#define PTRS_PER_PGD (PAGE_SIZE / sizeof(pgd_t))
-
-#define USER_PTRS_PER_PGD (TASK_SIZE/PGDIR_SIZE)
-#define FIRST_USER_ADDRESS 0
-
-#ifdef CONFIG_32BIT
-#define PHYS_ADDR_MASK 0xffffffff
-#else
-#define PHYS_ADDR_MASK 0x1fffffff
-#endif
-
-#define PTE_PHYS_MASK (PHYS_ADDR_MASK & PAGE_MASK)
-
-#ifdef CONFIG_SUPERH32
-#define VMALLOC_START (P3SEG)
-#else
-#define VMALLOC_START (0xf0000000)
-#endif
-#define VMALLOC_END (FIXADDR_START-2*PAGE_SIZE)
-
-#if defined(CONFIG_SUPERH32)
-#include <asm/pgtable_32.h>
-#else
-#include <asm/pgtable_64.h>
-#endif
-
-/*
- * SH-X and lower (legacy) SuperH parts (SH-3, SH-4, some SH-4A) can't do page
- * protection for execute, and considers it the same as a read. Also, write
- * permission implies read permission. This is the closest we can get..
- *
- * SH-X2 (SH7785) and later parts take this to the opposite end of the extreme,
- * not only supporting separate execute, read, and write bits, but having
- * completely separate permission bits for user and kernel space.
- */
- /*xwr*/
-#define __P000 PAGE_NONE
-#define __P001 PAGE_READONLY
-#define __P010 PAGE_COPY
-#define __P011 PAGE_COPY
-#define __P100 PAGE_EXECREAD
-#define __P101 PAGE_EXECREAD
-#define __P110 PAGE_COPY
-#define __P111 PAGE_COPY
-
-#define __S000 PAGE_NONE
-#define __S001 PAGE_READONLY
-#define __S010 PAGE_WRITEONLY
-#define __S011 PAGE_SHARED
-#define __S100 PAGE_EXECREAD
-#define __S101 PAGE_EXECREAD
-#define __S110 PAGE_RWX
-#define __S111 PAGE_RWX
-
-typedef pte_t *pte_addr_t;
-
-#define kern_addr_valid(addr) (1)
-
-#define io_remap_pfn_range(vma, vaddr, pfn, size, prot) \
- remap_pfn_range(vma, vaddr, pfn, size, prot)
-
-#define pte_pfn(x) ((unsigned long)(((x).pte_low >> PAGE_SHIFT)))
-
-/*
- * No page table caches to initialise
- */
-#define pgtable_cache_init() do { } while (0)
-
-#if !defined(CONFIG_CACHE_OFF) && (defined(CONFIG_CPU_SH4) || \
- defined(CONFIG_SH7705_CACHE_32KB))
-struct mm_struct;
-#define __HAVE_ARCH_PTEP_GET_AND_CLEAR
-pte_t ptep_get_and_clear(struct mm_struct *mm, unsigned long addr, pte_t *ptep);
-#endif
-
-struct vm_area_struct;
-extern void update_mmu_cache(struct vm_area_struct * vma,
- unsigned long address, pte_t pte);
-extern pgd_t swapper_pg_dir[PTRS_PER_PGD];
-extern void paging_init(void);
-extern void page_table_range_init(unsigned long start, unsigned long end,
- pgd_t *pgd);
-
-#include <asm-generic/pgtable.h>
-
-#endif /* __ASM_SH_PGTABLE_H */