#ifndef _ASM_PGTABLE_H
#define _ASM_PGTABLE_H
-#include <linux/config.h>
#ifdef CONFIG_32BIT
#include <asm/pgtable-32.h>
#endif
#define pmd_page(pmd) (pfn_to_page(pmd_phys(pmd) >> PAGE_SHIFT))
#define pmd_page_kernel(pmd) pmd_val(pmd)
-#define pte_none(pte) (!(pte_val(pte) & ~_PAGE_GLOBAL))
-#define pte_present(pte) (pte_val(pte) & _PAGE_PRESENT)
-
#if defined(CONFIG_64BIT_PHYS_ADDR) && defined(CONFIG_CPU_MIPS32_R1)
+
+#define pte_none(pte) (!(((pte).pte_low | (pte).pte_high) & ~_PAGE_GLOBAL))
+#define pte_present(pte) ((pte).pte_low & _PAGE_PRESENT)
+
static inline void set_pte(pte_t *ptep, pte_t pte)
{
ptep->pte_high = pte.pte_high;
ptep->pte_low = pte.pte_low;
//printk("pte_high %x pte_low %x\n", ptep->pte_high, ptep->pte_low);
- if (pte_val(pte) & _PAGE_GLOBAL) {
+ if (pte.pte_low & _PAGE_GLOBAL) {
pte_t *buddy = ptep_buddy(ptep);
/*
* Make sure the buddy is global too (if it's !none,
* it better already be global)
*/
- if (pte_none(*buddy))
- buddy->pte_low |= _PAGE_GLOBAL;
+ if (pte_none(*buddy)) {
+ buddy->pte_low |= _PAGE_GLOBAL;
+ buddy->pte_high |= _PAGE_GLOBAL;
+ }
}
}
#define set_pte_at(mm,addr,ptep,pteval) set_pte(ptep,pteval)
static inline void pte_clear(struct mm_struct *mm, unsigned long addr, pte_t *ptep)
{
+ pte_t null = __pte(0);
+
/* Preserve global status for the pair */
- if (pte_val(*ptep_buddy(ptep)) & _PAGE_GLOBAL)
- set_pte_at(mm, addr, ptep, __pte(_PAGE_GLOBAL));
- else
- set_pte_at(mm, addr, ptep, __pte(0));
+ if (ptep_buddy(ptep)->pte_low & _PAGE_GLOBAL)
+ null.pte_low = null.pte_high = _PAGE_GLOBAL;
+
+ set_pte_at(mm, addr, ptep, null);
}
#else
+
+#define pte_none(pte) (!(pte_val(pte) & ~_PAGE_GLOBAL))
+#define pte_present(pte) (pte_val(pte) & _PAGE_PRESENT)
+
/*
* Certain architectures need to do special things when pte's
* within a page table are directly modified. Thus, the following
*/
static inline int pte_user(pte_t pte) { BUG(); return 0; }
#if defined(CONFIG_64BIT_PHYS_ADDR) && defined(CONFIG_CPU_MIPS32_R1)
-static inline int pte_read(pte_t pte) { return (pte).pte_low & _PAGE_READ; }
-static inline int pte_write(pte_t pte) { return (pte).pte_low & _PAGE_WRITE; }
-static inline int pte_dirty(pte_t pte) { return (pte).pte_low & _PAGE_MODIFIED; }
-static inline int pte_young(pte_t pte) { return (pte).pte_low & _PAGE_ACCESSED; }
-static inline int pte_file(pte_t pte) { return (pte).pte_low & _PAGE_FILE; }
+static inline int pte_read(pte_t pte) { return pte.pte_low & _PAGE_READ; }
+static inline int pte_write(pte_t pte) { return pte.pte_low & _PAGE_WRITE; }
+static inline int pte_dirty(pte_t pte) { return pte.pte_low & _PAGE_MODIFIED; }
+static inline int pte_young(pte_t pte) { return pte.pte_low & _PAGE_ACCESSED; }
+static inline int pte_file(pte_t pte) { return pte.pte_low & _PAGE_FILE; }
+
static inline pte_t pte_wrprotect(pte_t pte)
{
- (pte).pte_low &= ~(_PAGE_WRITE | _PAGE_SILENT_WRITE);
- (pte).pte_high &= ~_PAGE_SILENT_WRITE;
+ pte.pte_low &= ~(_PAGE_WRITE | _PAGE_SILENT_WRITE);
+ pte.pte_high &= ~_PAGE_SILENT_WRITE;
return pte;
}
static inline pte_t pte_rdprotect(pte_t pte)
{
- (pte).pte_low &= ~(_PAGE_READ | _PAGE_SILENT_READ);
- (pte).pte_high &= ~_PAGE_SILENT_READ;
+ pte.pte_low &= ~(_PAGE_READ | _PAGE_SILENT_READ);
+ pte.pte_high &= ~_PAGE_SILENT_READ;
return pte;
}
static inline pte_t pte_mkclean(pte_t pte)
{
- (pte).pte_low &= ~(_PAGE_MODIFIED|_PAGE_SILENT_WRITE);
- (pte).pte_high &= ~_PAGE_SILENT_WRITE;
+ pte.pte_low &= ~(_PAGE_MODIFIED | _PAGE_SILENT_WRITE);
+ pte.pte_high &= ~_PAGE_SILENT_WRITE;
return pte;
}
static inline pte_t pte_mkold(pte_t pte)
{
- (pte).pte_low &= ~(_PAGE_ACCESSED|_PAGE_SILENT_READ);
- (pte).pte_high &= ~_PAGE_SILENT_READ;
+ pte.pte_low &= ~(_PAGE_ACCESSED | _PAGE_SILENT_READ);
+ pte.pte_high &= ~_PAGE_SILENT_READ;
return pte;
}
static inline pte_t pte_mkwrite(pte_t pte)
{
- (pte).pte_low |= _PAGE_WRITE;
- if ((pte).pte_low & _PAGE_MODIFIED) {
- (pte).pte_low |= _PAGE_SILENT_WRITE;
- (pte).pte_high |= _PAGE_SILENT_WRITE;
+ pte.pte_low |= _PAGE_WRITE;
+ if (pte.pte_low & _PAGE_MODIFIED) {
+ pte.pte_low |= _PAGE_SILENT_WRITE;
+ pte.pte_high |= _PAGE_SILENT_WRITE;
}
return pte;
}
static inline pte_t pte_mkread(pte_t pte)
{
- (pte).pte_low |= _PAGE_READ;
- if ((pte).pte_low & _PAGE_ACCESSED) {
- (pte).pte_low |= _PAGE_SILENT_READ;
- (pte).pte_high |= _PAGE_SILENT_READ;
+ pte.pte_low |= _PAGE_READ;
+ if (pte.pte_low & _PAGE_ACCESSED) {
+ pte.pte_low |= _PAGE_SILENT_READ;
+ pte.pte_high |= _PAGE_SILENT_READ;
}
return pte;
}
static inline pte_t pte_mkdirty(pte_t pte)
{
- (pte).pte_low |= _PAGE_MODIFIED;
- if ((pte).pte_low & _PAGE_WRITE) {
- (pte).pte_low |= _PAGE_SILENT_WRITE;
- (pte).pte_high |= _PAGE_SILENT_WRITE;
+ pte.pte_low |= _PAGE_MODIFIED;
+ if (pte.pte_low & _PAGE_WRITE) {
+ pte.pte_low |= _PAGE_SILENT_WRITE;
+ pte.pte_high |= _PAGE_SILENT_WRITE;
}
return pte;
}
static inline pte_t pte_mkyoung(pte_t pte)
{
- (pte).pte_low |= _PAGE_ACCESSED;
- if ((pte).pte_low & _PAGE_READ)
- (pte).pte_low |= _PAGE_SILENT_READ;
- (pte).pte_high |= _PAGE_SILENT_READ;
+ pte.pte_low |= _PAGE_ACCESSED;
+ if (pte.pte_low & _PAGE_READ)
+ pte.pte_low |= _PAGE_SILENT_READ;
+ pte.pte_high |= _PAGE_SILENT_READ;
return pte;
}
#else
#if defined(CONFIG_64BIT_PHYS_ADDR) && defined(CONFIG_CPU_MIPS32_R1)
static inline pte_t pte_modify(pte_t pte, pgprot_t newprot)
{
- pte.pte_low &= _PAGE_CHG_MASK;
- pte.pte_low |= pgprot_val(newprot);
+ pte.pte_low &= _PAGE_CHG_MASK;
+ pte.pte_high &= ~0x3f;
+ pte.pte_low |= pgprot_val(newprot);
pte.pte_high |= pgprot_val(newprot) & 0x3f;
return pte;
}
__update_cache(vma, address, pte);
}
-#ifndef CONFIG_NEED_MULTIPLE_NODES
#define kern_addr_valid(addr) (1)
-#endif
#ifdef CONFIG_64BIT_PHYS_ADDR
extern int remap_pfn_range(struct vm_area_struct *vma, unsigned long from, unsigned long pfn, unsigned long size, pgprot_t prot);