#define _PAGE_BIT_PAT_LARGE 12 /* On 2MB or 1GB pages */
#define _PAGE_BIT_NX 63 /* No execute: only valid after cpuid check */
-/*
- * Note: we use _AC(1, L) instead of _AC(1, UL) so that we get a
- * sign-extended value on 32-bit with all 1's in the upper word,
- * which preserves the upper pte values on 64-bit ptes:
- */
-#define _PAGE_PRESENT (_AC(1, L)<<_PAGE_BIT_PRESENT)
-#define _PAGE_RW (_AC(1, L)<<_PAGE_BIT_RW)
-#define _PAGE_USER (_AC(1, L)<<_PAGE_BIT_USER)
-#define _PAGE_PWT (_AC(1, L)<<_PAGE_BIT_PWT)
-#define _PAGE_PCD (_AC(1, L)<<_PAGE_BIT_PCD)
-#define _PAGE_ACCESSED (_AC(1, L)<<_PAGE_BIT_ACCESSED)
-#define _PAGE_DIRTY (_AC(1, L)<<_PAGE_BIT_DIRTY)
-#define _PAGE_PSE (_AC(1, L)<<_PAGE_BIT_PSE) /* 2MB page */
-#define _PAGE_GLOBAL (_AC(1, L)<<_PAGE_BIT_GLOBAL) /* Global TLB entry */
-#define _PAGE_UNUSED1 (_AC(1, L)<<_PAGE_BIT_UNUSED1)
-#define _PAGE_UNUSED2 (_AC(1, L)<<_PAGE_BIT_UNUSED2)
-#define _PAGE_UNUSED3 (_AC(1, L)<<_PAGE_BIT_UNUSED3)
-#define _PAGE_PAT (_AC(1, L)<<_PAGE_BIT_PAT)
-#define _PAGE_PAT_LARGE (_AC(1, L)<<_PAGE_BIT_PAT_LARGE)
+#define _PAGE_PRESENT (_AT(pteval_t, 1) << _PAGE_BIT_PRESENT)
+#define _PAGE_RW (_AT(pteval_t, 1) << _PAGE_BIT_RW)
+#define _PAGE_USER (_AT(pteval_t, 1) << _PAGE_BIT_USER)
+#define _PAGE_PWT (_AT(pteval_t, 1) << _PAGE_BIT_PWT)
+#define _PAGE_PCD (_AT(pteval_t, 1) << _PAGE_BIT_PCD)
+#define _PAGE_ACCESSED (_AT(pteval_t, 1) << _PAGE_BIT_ACCESSED)
+#define _PAGE_DIRTY (_AT(pteval_t, 1) << _PAGE_BIT_DIRTY)
+#define _PAGE_PSE (_AT(pteval_t, 1) << _PAGE_BIT_PSE)
+#define _PAGE_GLOBAL (_AT(pteval_t, 1) << _PAGE_BIT_GLOBAL)
+#define _PAGE_UNUSED1 (_AT(pteval_t, 1) << _PAGE_BIT_UNUSED1)
+#define _PAGE_UNUSED2 (_AT(pteval_t, 1) << _PAGE_BIT_UNUSED2)
+#define _PAGE_UNUSED3 (_AT(pteval_t, 1) << _PAGE_BIT_UNUSED3)
+#define _PAGE_PAT (_AT(pteval_t, 1) << _PAGE_BIT_PAT)
+#define _PAGE_PAT_LARGE (_AT(pteval_t, 1) << _PAGE_BIT_PAT_LARGE)
#if defined(CONFIG_X86_64) || defined(CONFIG_X86_PAE)
-#define _PAGE_NX (_AC(1, ULL) << _PAGE_BIT_NX)
+#define _PAGE_NX (_AT(pteval_t, 1) << _PAGE_BIT_NX)
#else
-#define _PAGE_NX 0
+#define _PAGE_NX (_AT(pteval_t, 0))
#endif
/* If _PAGE_PRESENT is clear, we use these: */
#define PAGE_READONLY_EXEC __pgprot(_PAGE_PRESENT | _PAGE_USER | \
_PAGE_ACCESSED)
-#ifdef CONFIG_X86_32
-#define _PAGE_KERNEL_EXEC \
- (_PAGE_PRESENT | _PAGE_RW | _PAGE_DIRTY | _PAGE_ACCESSED)
-#define _PAGE_KERNEL (_PAGE_KERNEL_EXEC | _PAGE_NX)
-
-#ifndef __ASSEMBLY__
-extern pteval_t __PAGE_KERNEL, __PAGE_KERNEL_EXEC;
-#endif /* __ASSEMBLY__ */
-#else
#define __PAGE_KERNEL_EXEC \
- (_PAGE_PRESENT | _PAGE_RW | _PAGE_DIRTY | _PAGE_ACCESSED)
+ (_PAGE_PRESENT | _PAGE_RW | _PAGE_DIRTY | _PAGE_ACCESSED | _PAGE_GLOBAL)
#define __PAGE_KERNEL (__PAGE_KERNEL_EXEC | _PAGE_NX)
-#endif
#define __PAGE_KERNEL_RO (__PAGE_KERNEL & ~_PAGE_RW)
#define __PAGE_KERNEL_RX (__PAGE_KERNEL_EXEC & ~_PAGE_RW)
#define __PAGE_KERNEL_VSYSCALL (__PAGE_KERNEL_RX | _PAGE_USER)
#define __PAGE_KERNEL_VSYSCALL_NOCACHE (__PAGE_KERNEL_VSYSCALL | _PAGE_PCD | _PAGE_PWT)
#define __PAGE_KERNEL_LARGE (__PAGE_KERNEL | _PAGE_PSE)
+#define __PAGE_KERNEL_LARGE_NOCACHE (__PAGE_KERNEL | _PAGE_CACHE_UC | _PAGE_PSE)
#define __PAGE_KERNEL_LARGE_EXEC (__PAGE_KERNEL_EXEC | _PAGE_PSE)
-#ifdef CONFIG_X86_32
-# define MAKE_GLOBAL(x) __pgprot((x))
-#else
-# define MAKE_GLOBAL(x) __pgprot((x) | _PAGE_GLOBAL)
-#endif
-
-#define PAGE_KERNEL MAKE_GLOBAL(__PAGE_KERNEL)
-#define PAGE_KERNEL_RO MAKE_GLOBAL(__PAGE_KERNEL_RO)
-#define PAGE_KERNEL_EXEC MAKE_GLOBAL(__PAGE_KERNEL_EXEC)
-#define PAGE_KERNEL_RX MAKE_GLOBAL(__PAGE_KERNEL_RX)
-#define PAGE_KERNEL_WC MAKE_GLOBAL(__PAGE_KERNEL_WC)
-#define PAGE_KERNEL_NOCACHE MAKE_GLOBAL(__PAGE_KERNEL_NOCACHE)
-#define PAGE_KERNEL_UC_MINUS MAKE_GLOBAL(__PAGE_KERNEL_UC_MINUS)
-#define PAGE_KERNEL_EXEC_NOCACHE MAKE_GLOBAL(__PAGE_KERNEL_EXEC_NOCACHE)
-#define PAGE_KERNEL_LARGE MAKE_GLOBAL(__PAGE_KERNEL_LARGE)
-#define PAGE_KERNEL_LARGE_EXEC MAKE_GLOBAL(__PAGE_KERNEL_LARGE_EXEC)
-#define PAGE_KERNEL_VSYSCALL MAKE_GLOBAL(__PAGE_KERNEL_VSYSCALL)
-#define PAGE_KERNEL_VSYSCALL_NOCACHE MAKE_GLOBAL(__PAGE_KERNEL_VSYSCALL_NOCACHE)
+#define PAGE_KERNEL __pgprot(__PAGE_KERNEL)
+#define PAGE_KERNEL_RO __pgprot(__PAGE_KERNEL_RO)
+#define PAGE_KERNEL_EXEC __pgprot(__PAGE_KERNEL_EXEC)
+#define PAGE_KERNEL_RX __pgprot(__PAGE_KERNEL_RX)
+#define PAGE_KERNEL_WC __pgprot(__PAGE_KERNEL_WC)
+#define PAGE_KERNEL_NOCACHE __pgprot(__PAGE_KERNEL_NOCACHE)
+#define PAGE_KERNEL_UC_MINUS __pgprot(__PAGE_KERNEL_UC_MINUS)
+#define PAGE_KERNEL_EXEC_NOCACHE __pgprot(__PAGE_KERNEL_EXEC_NOCACHE)
+#define PAGE_KERNEL_LARGE __pgprot(__PAGE_KERNEL_LARGE)
+#define PAGE_KERNEL_LARGE_NOCACHE __pgprot(__PAGE_KERNEL_LARGE_NOCACHE)
+#define PAGE_KERNEL_LARGE_EXEC __pgprot(__PAGE_KERNEL_LARGE_EXEC)
+#define PAGE_KERNEL_VSYSCALL __pgprot(__PAGE_KERNEL_VSYSCALL)
+#define PAGE_KERNEL_VSYSCALL_NOCACHE __pgprot(__PAGE_KERNEL_VSYSCALL_NOCACHE)
/* xwr */
#define __P000 PAGE_NONE
*/
static inline int pte_dirty(pte_t pte)
{
- return pte_val(pte) & _PAGE_DIRTY;
+ return pte_flags(pte) & _PAGE_DIRTY;
}
static inline int pte_young(pte_t pte)
{
- return pte_val(pte) & _PAGE_ACCESSED;
+ return pte_flags(pte) & _PAGE_ACCESSED;
}
static inline int pte_write(pte_t pte)
{
- return pte_val(pte) & _PAGE_RW;
+ return pte_flags(pte) & _PAGE_RW;
}
static inline int pte_file(pte_t pte)
{
- return pte_val(pte) & _PAGE_FILE;
+ return pte_flags(pte) & _PAGE_FILE;
}
static inline int pte_huge(pte_t pte)
{
- return pte_val(pte) & _PAGE_PSE;
+ return pte_flags(pte) & _PAGE_PSE;
}
static inline int pte_global(pte_t pte)
{
- return pte_val(pte) & _PAGE_GLOBAL;
+ return pte_flags(pte) & _PAGE_GLOBAL;
}
static inline int pte_exec(pte_t pte)
{
- return !(pte_val(pte) & _PAGE_NX);
+ return !(pte_flags(pte) & _PAGE_NX);
}
static inline int pte_special(pte_t pte)
static inline pte_t pte_mkclean(pte_t pte)
{
- return __pte(pte_val(pte) & ~(pteval_t)_PAGE_DIRTY);
+ return __pte(pte_val(pte) & ~_PAGE_DIRTY);
}
static inline pte_t pte_mkold(pte_t pte)
{
- return __pte(pte_val(pte) & ~(pteval_t)_PAGE_ACCESSED);
+ return __pte(pte_val(pte) & ~_PAGE_ACCESSED);
}
static inline pte_t pte_wrprotect(pte_t pte)
{
- return __pte(pte_val(pte) & ~(pteval_t)_PAGE_RW);
+ return __pte(pte_val(pte) & ~_PAGE_RW);
}
static inline pte_t pte_mkexec(pte_t pte)
{
- return __pte(pte_val(pte) & ~(pteval_t)_PAGE_NX);
+ return __pte(pte_val(pte) & ~_PAGE_NX);
}
static inline pte_t pte_mkdirty(pte_t pte)
static inline pte_t pte_clrhuge(pte_t pte)
{
- return __pte(pte_val(pte) & ~(pteval_t)_PAGE_PSE);
+ return __pte(pte_val(pte) & ~_PAGE_PSE);
}
static inline pte_t pte_mkglobal(pte_t pte)
static inline pte_t pte_clrglobal(pte_t pte)
{
- return __pte(pte_val(pte) & ~(pteval_t)_PAGE_GLOBAL);
+ return __pte(pte_val(pte) & ~_PAGE_GLOBAL);
}
static inline pte_t pte_mkspecial(pte_t pte)
return __pgprot(preservebits | addbits);
}
-#define pte_pgprot(x) __pgprot(pte_val(x) & ~PTE_MASK)
+#define pte_pgprot(x) __pgprot(pte_flags(x) & ~PTE_MASK)
#define canon_pgprot(p) __pgprot(pgprot_val(p) & __supported_pte_mask)
unsigned long size, pgprot_t *vma_prot);
#endif
+/* Install a pte for a particular vaddr in kernel space. */
+void set_pte_vaddr(unsigned long vaddr, pte_t pte);
+
#ifdef CONFIG_PARAVIRT
#include <asm/paravirt.h>
#else /* !CONFIG_PARAVIRT */
# include "pgtable_64.h"
#endif
+/*
+ * the pgd page can be thought of an array like this: pgd_t[PTRS_PER_PGD]
+ *
+ * this macro returns the index of the entry in the pgd page which would
+ * control the given virtual address
+ */
+#define pgd_index(address) (((address) >> PGDIR_SHIFT) & (PTRS_PER_PGD - 1))
+
+/*
+ * pgd_offset() returns a (pgd_t *)
+ * pgd_index() is used get the offset into the pgd page's array of pgd_t's;
+ */
+#define pgd_offset(mm, address) ((mm)->pgd + pgd_index((address)))
+/*
+ * a shortcut which implies the use of the kernel's pgd, instead
+ * of a process's
+ */
+#define pgd_offset_k(address) pgd_offset(&init_mm, (address))
+
+
#define KERNEL_PGD_BOUNDARY pgd_index(PAGE_OFFSET)
#define KERNEL_PGD_PTRS (PTRS_PER_PGD - KERNEL_PGD_BOUNDARY)
PG_LEVEL_4K,
PG_LEVEL_2M,
PG_LEVEL_1G,
+ PG_LEVEL_NUM
};
+#ifdef CONFIG_PROC_FS
+extern void update_page_count(int level, unsigned long pages);
+#else
+static inline void update_page_count(int level, unsigned long pages) { }
+#endif
+
/*
* Helper function that returns the kernel pagetable entry controlling
* the virtual address 'address'. NULL means no pagetable entry present.
* race with other CPU's that might be updating the dirty
* bit at the same time.
*/
+struct vm_area_struct;
+
#define __HAVE_ARCH_PTEP_SET_ACCESS_FLAGS
extern int ptep_set_access_flags(struct vm_area_struct *vma,
unsigned long address, pte_t *ptep,
git.openpandora.org / pandora-kernel.git / blobdiff