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-rw-r--r--include/asm-mips/pgtable.h29
1 files changed, 19 insertions, 10 deletions
diff --git a/include/asm-mips/pgtable.h b/include/asm-mips/pgtable.h
index cbd1672c94cb..702a28fa7a34 100644
--- a/include/asm-mips/pgtable.h
+++ b/include/asm-mips/pgtable.h
@@ -8,8 +8,6 @@
8#ifndef _ASM_PGTABLE_H 8#ifndef _ASM_PGTABLE_H
9#define _ASM_PGTABLE_H 9#define _ASM_PGTABLE_H
10 10
11#include <asm-generic/4level-fixup.h>
12
13#include <linux/config.h> 11#include <linux/config.h>
14#ifdef CONFIG_32BIT 12#ifdef CONFIG_32BIT
15#include <asm/pgtable-32.h> 13#include <asm/pgtable-32.h>
@@ -18,8 +16,12 @@
18#include <asm/pgtable-64.h> 16#include <asm/pgtable-64.h>
19#endif 17#endif
20 18
19#include <asm/io.h>
21#include <asm/pgtable-bits.h> 20#include <asm/pgtable-bits.h>
22 21
22struct mm_struct;
23struct vm_area_struct;
24
23#define PAGE_NONE __pgprot(_PAGE_PRESENT | _CACHE_CACHABLE_NONCOHERENT) 25#define PAGE_NONE __pgprot(_PAGE_PRESENT | _CACHE_CACHABLE_NONCOHERENT)
24#define PAGE_SHARED __pgprot(_PAGE_PRESENT | _PAGE_READ | _PAGE_WRITE | \ 26#define PAGE_SHARED __pgprot(_PAGE_PRESENT | _PAGE_READ | _PAGE_WRITE | \
25 PAGE_CACHABLE_DEFAULT) 27 PAGE_CACHABLE_DEFAULT)
@@ -68,13 +70,14 @@ extern unsigned long zero_page_mask;
68#define ZERO_PAGE(vaddr) \ 70#define ZERO_PAGE(vaddr) \
69 (virt_to_page(empty_zero_page + (((unsigned long)(vaddr)) & zero_page_mask))) 71 (virt_to_page(empty_zero_page + (((unsigned long)(vaddr)) & zero_page_mask)))
70 72
73#define __HAVE_ARCH_MULTIPLE_ZERO_PAGE
74
71extern void paging_init(void); 75extern void paging_init(void);
72 76
73/* 77/*
74 * Conversion functions: convert a page and protection to a page entry, 78 * Conversion functions: convert a page and protection to a page entry,
75 * and a page entry and page directory to the page they refer to. 79 * and a page entry and page directory to the page they refer to.
76 */ 80 */
77#define page_pte(page) page_pte_prot(page, __pgprot(0))
78#define pmd_phys(pmd) (pmd_val(pmd) - PAGE_OFFSET) 81#define pmd_phys(pmd) (pmd_val(pmd) - PAGE_OFFSET)
79#define pmd_page(pmd) (pfn_to_page(pmd_phys(pmd) >> PAGE_SHIFT)) 82#define pmd_page(pmd) (pfn_to_page(pmd_phys(pmd) >> PAGE_SHIFT))
80#define pmd_page_kernel(pmd) pmd_val(pmd) 83#define pmd_page_kernel(pmd) pmd_val(pmd)
@@ -82,7 +85,7 @@ extern void paging_init(void);
82#define pte_none(pte) (!(pte_val(pte) & ~_PAGE_GLOBAL)) 85#define pte_none(pte) (!(pte_val(pte) & ~_PAGE_GLOBAL))
83#define pte_present(pte) (pte_val(pte) & _PAGE_PRESENT) 86#define pte_present(pte) (pte_val(pte) & _PAGE_PRESENT)
84 87
85#if defined(CONFIG_64BIT_PHYS_ADDR) && defined(CONFIG_CPU_MIPS32) 88#if defined(CONFIG_64BIT_PHYS_ADDR) && defined(CONFIG_CPU_MIPS32_R1)
86static inline void set_pte(pte_t *ptep, pte_t pte) 89static inline void set_pte(pte_t *ptep, pte_t pte)
87{ 90{
88 ptep->pte_high = pte.pte_high; 91 ptep->pte_high = pte.pte_high;
@@ -146,11 +149,18 @@ static inline void pte_clear(struct mm_struct *mm, unsigned long addr, pte_t *pt
146#endif 149#endif
147 150
148/* 151/*
149 * (pmds are folded into pgds so this doesn't get actually called, 152 * (pmds are folded into puds so this doesn't get actually called,
150 * but the define is needed for a generic inline function.) 153 * but the define is needed for a generic inline function.)
151 */ 154 */
152#define set_pmd(pmdptr, pmdval) do { *(pmdptr) = (pmdval); } while(0) 155#define set_pmd(pmdptr, pmdval) do { *(pmdptr) = (pmdval); } while(0)
153#define set_pgd(pgdptr, pgdval) do { *(pgdptr) = (pgdval); } while(0) 156
157#ifdef CONFIG_64BIT
158/*
159 * (puds are folded into pgds so this doesn't get actually called,
160 * but the define is needed for a generic inline function.)
161 */
162#define set_pud(pudptr, pudval) do { *(pudptr) = (pudval); } while(0)
163#endif
154 164
155#define PGD_T_LOG2 ffz(~sizeof(pgd_t)) 165#define PGD_T_LOG2 ffz(~sizeof(pgd_t))
156#define PMD_T_LOG2 ffz(~sizeof(pmd_t)) 166#define PMD_T_LOG2 ffz(~sizeof(pmd_t))
@@ -163,7 +173,7 @@ extern pgd_t swapper_pg_dir[PTRS_PER_PGD];
163 * Undefined behaviour if not.. 173 * Undefined behaviour if not..
164 */ 174 */
165static inline int pte_user(pte_t pte) { BUG(); return 0; } 175static inline int pte_user(pte_t pte) { BUG(); return 0; }
166#if defined(CONFIG_64BIT_PHYS_ADDR) && defined(CONFIG_CPU_MIPS32) 176#if defined(CONFIG_64BIT_PHYS_ADDR) && defined(CONFIG_CPU_MIPS32_R1)
167static inline int pte_read(pte_t pte) { return (pte).pte_low & _PAGE_READ; } 177static inline int pte_read(pte_t pte) { return (pte).pte_low & _PAGE_READ; }
168static inline int pte_write(pte_t pte) { return (pte).pte_low & _PAGE_WRITE; } 178static inline int pte_write(pte_t pte) { return (pte).pte_low & _PAGE_WRITE; }
169static inline int pte_dirty(pte_t pte) { return (pte).pte_low & _PAGE_MODIFIED; } 179static inline int pte_dirty(pte_t pte) { return (pte).pte_low & _PAGE_MODIFIED; }
@@ -322,7 +332,7 @@ static inline pgprot_t pgprot_noncached(pgprot_t _prot)
322 */ 332 */
323#define mk_pte(page, pgprot) pfn_pte(page_to_pfn(page), (pgprot)) 333#define mk_pte(page, pgprot) pfn_pte(page_to_pfn(page), (pgprot))
324 334
325#if defined(CONFIG_64BIT_PHYS_ADDR) && defined(CONFIG_CPU_MIPS32) 335#if defined(CONFIG_64BIT_PHYS_ADDR) && defined(CONFIG_CPU_MIPS32_R1)
326static inline pte_t pte_modify(pte_t pte, pgprot_t newprot) 336static inline pte_t pte_modify(pte_t pte, pgprot_t newprot)
327{ 337{
328 pte.pte_low &= _PAGE_CHG_MASK; 338 pte.pte_low &= _PAGE_CHG_MASK;
@@ -355,7 +365,6 @@ static inline void update_mmu_cache(struct vm_area_struct *vma,
355#endif 365#endif
356 366
357#ifdef CONFIG_64BIT_PHYS_ADDR 367#ifdef CONFIG_64BIT_PHYS_ADDR
358extern phys_t fixup_bigphys_addr(phys_t phys_addr, phys_t size);
359extern int remap_pfn_range(struct vm_area_struct *vma, unsigned long from, unsigned long pfn, unsigned long size, pgprot_t prot); 368extern int remap_pfn_range(struct vm_area_struct *vma, unsigned long from, unsigned long pfn, unsigned long size, pgprot_t prot);
360 369
361static inline int io_remap_pfn_range(struct vm_area_struct *vma, 370static inline int io_remap_pfn_range(struct vm_area_struct *vma,
@@ -365,7 +374,7 @@ static inline int io_remap_pfn_range(struct vm_area_struct *vma,
365 pgprot_t prot) 374 pgprot_t prot)
366{ 375{
367 phys_t phys_addr_high = fixup_bigphys_addr(pfn << PAGE_SHIFT, size); 376 phys_t phys_addr_high = fixup_bigphys_addr(pfn << PAGE_SHIFT, size);
368 return remap_pfn_range(vma, vaddr, pfn, size, prot); 377 return remap_pfn_range(vma, vaddr, phys_addr_high >> PAGE_SHIFT, size, prot);
369} 378}
370#else 379#else
371#define io_remap_pfn_range(vma, vaddr, pfn, size, prot) \ 380#define io_remap_pfn_range(vma, vaddr, pfn, size, prot) \