#define __S110 PAGE_SHARED_EXEC
#define __S111 PAGE_SHARED_EXEC
+#ifdef CONFIG_TRANSPARENT_HUGEPAGE
+static inline int pmd_present(pmd_t pmd)
+{
+ /*
+ * Checking for _PAGE_LEAF is needed too because:
+ * When splitting a THP, split_huge_page() will temporarily clear
+ * the present bit, in this situation, pmd_present() and
+ * pmd_trans_huge() still needs to return true.
+ */
+ return (pmd_val(pmd) & (_PAGE_PRESENT | _PAGE_PROT_NONE | _PAGE_LEAF));
+}
+#else
static inline int pmd_present(pmd_t pmd)
{
return (pmd_val(pmd) & (_PAGE_PRESENT | _PAGE_PROT_NONE));
}
+#endif
static inline int pmd_none(pmd_t pmd)
{
static inline int pmd_bad(pmd_t pmd)
{
- return !pmd_present(pmd);
+ return !pmd_present(pmd) || (pmd_val(pmd) & _PAGE_LEAF);
}
#define pmd_leaf pmd_leaf
static inline int pmd_leaf(pmd_t pmd)
{
- return pmd_present(pmd) &&
- (pmd_val(pmd) & (_PAGE_READ | _PAGE_WRITE | _PAGE_EXEC));
+ return pmd_present(pmd) && (pmd_val(pmd) & _PAGE_LEAF);
}
static inline void set_pmd(pmd_t *pmdp, pmd_t pmd)
return __pte(pmd_val(pmd));
}
+static inline pte_t pud_pte(pud_t pud)
+{
+ return __pte(pud_val(pud));
+}
+
/* Yields the page frame number (PFN) of a page table entry */
static inline unsigned long pte_pfn(pte_t pte)
{
static inline int pte_huge(pte_t pte)
{
- return pte_present(pte)
- && (pte_val(pte) & (_PAGE_READ | _PAGE_WRITE | _PAGE_EXEC));
+ return pte_present(pte) && (pte_val(pte) & _PAGE_LEAF);
}
static inline int pte_dirty(pte_t pte)
local_flush_tlb_page(address);
}
+static inline void update_mmu_cache_pmd(struct vm_area_struct *vma,
+ unsigned long address, pmd_t *pmdp)
+{
+ pte_t *ptep = (pte_t *)pmdp;
+
+ update_mmu_cache(vma, address, ptep);
+}
+
#define __HAVE_ARCH_PTE_SAME
static inline int pte_same(pte_t pte_a, pte_t pte_b)
{
return ptep_test_and_clear_young(vma, address, ptep);
}
+/*
+ * THP functions
+ */
+static inline pmd_t pte_pmd(pte_t pte)
+{
+ return __pmd(pte_val(pte));
+}
+
+static inline pmd_t pmd_mkhuge(pmd_t pmd)
+{
+ return pmd;
+}
+
+static inline pmd_t pmd_mkinvalid(pmd_t pmd)
+{
+ return __pmd(pmd_val(pmd) & ~(_PAGE_PRESENT|_PAGE_PROT_NONE));
+}
+
+#define __pmd_to_phys(pmd) (pmd_val(pmd) >> _PAGE_PFN_SHIFT << PAGE_SHIFT)
+
+static inline unsigned long pmd_pfn(pmd_t pmd)
+{
+ return ((__pmd_to_phys(pmd) & PMD_MASK) >> PAGE_SHIFT);
+}
+
+static inline pmd_t mk_pmd(struct page *page, pgprot_t prot)
+{
+ return pfn_pmd(page_to_pfn(page), prot);
+}
+
+static inline pmd_t pmd_modify(pmd_t pmd, pgprot_t newprot)
+{
+ return pte_pmd(pte_modify(pmd_pte(pmd), newprot));
+}
+
+#define pmd_write pmd_write
+static inline int pmd_write(pmd_t pmd)
+{
+ return pte_write(pmd_pte(pmd));
+}
+
+static inline int pmd_dirty(pmd_t pmd)
+{
+ return pte_dirty(pmd_pte(pmd));
+}
+
+static inline int pmd_young(pmd_t pmd)
+{
+ return pte_young(pmd_pte(pmd));
+}
+
+static inline pmd_t pmd_mkold(pmd_t pmd)
+{
+ return pte_pmd(pte_mkold(pmd_pte(pmd)));
+}
+
+static inline pmd_t pmd_mkyoung(pmd_t pmd)
+{
+ return pte_pmd(pte_mkyoung(pmd_pte(pmd)));
+}
+
+static inline pmd_t pmd_mkwrite(pmd_t pmd)
+{
+ return pte_pmd(pte_mkwrite(pmd_pte(pmd)));
+}
+
+static inline pmd_t pmd_wrprotect(pmd_t pmd)
+{
+ return pte_pmd(pte_wrprotect(pmd_pte(pmd)));
+}
+
+static inline pmd_t pmd_mkclean(pmd_t pmd)
+{
+ return pte_pmd(pte_mkclean(pmd_pte(pmd)));
+}
+
+static inline pmd_t pmd_mkdirty(pmd_t pmd)
+{
+ return pte_pmd(pte_mkdirty(pmd_pte(pmd)));
+}
+
+static inline void set_pmd_at(struct mm_struct *mm, unsigned long addr,
+ pmd_t *pmdp, pmd_t pmd)
+{
+ return set_pte_at(mm, addr, (pte_t *)pmdp, pmd_pte(pmd));
+}
+
+static inline void set_pud_at(struct mm_struct *mm, unsigned long addr,
+ pud_t *pudp, pud_t pud)
+{
+ return set_pte_at(mm, addr, (pte_t *)pudp, pud_pte(pud));
+}
+
+#ifdef CONFIG_TRANSPARENT_HUGEPAGE
+static inline int pmd_trans_huge(pmd_t pmd)
+{
+ return pmd_leaf(pmd);
+}
+
+#define __HAVE_ARCH_PMDP_SET_ACCESS_FLAGS
+static inline int pmdp_set_access_flags(struct vm_area_struct *vma,
+ unsigned long address, pmd_t *pmdp,
+ pmd_t entry, int dirty)
+{
+ return ptep_set_access_flags(vma, address, (pte_t *)pmdp, pmd_pte(entry), dirty);
+}
+
+#define __HAVE_ARCH_PMDP_TEST_AND_CLEAR_YOUNG
+static inline int pmdp_test_and_clear_young(struct vm_area_struct *vma,
+ unsigned long address, pmd_t *pmdp)
+{
+ return ptep_test_and_clear_young(vma, address, (pte_t *)pmdp);
+}
+
+#define __HAVE_ARCH_PMDP_HUGE_GET_AND_CLEAR
+static inline pmd_t pmdp_huge_get_and_clear(struct mm_struct *mm,
+ unsigned long address, pmd_t *pmdp)
+{
+ return pte_pmd(ptep_get_and_clear(mm, address, (pte_t *)pmdp));
+}
+
+#define __HAVE_ARCH_PMDP_SET_WRPROTECT
+static inline void pmdp_set_wrprotect(struct mm_struct *mm,
+ unsigned long address, pmd_t *pmdp)
+{
+ ptep_set_wrprotect(mm, address, (pte_t *)pmdp);
+}
+
+#define pmdp_establish pmdp_establish
+static inline pmd_t pmdp_establish(struct vm_area_struct *vma,
+ unsigned long address, pmd_t *pmdp, pmd_t pmd)
+{
+ return __pmd(atomic_long_xchg((atomic_long_t *)pmdp, pmd_val(pmd)));
+}
+
+#define __HAVE_ARCH_FLUSH_PMD_TLB_RANGE
+void flush_pmd_tlb_range(struct vm_area_struct *vma, unsigned long start,
+ unsigned long end);
+
+#endif /* CONFIG_TRANSPARENT_HUGEPAGE */
+
/*
* Encode and decode a swap entry
*
#define dtb_early_pa _dtb_early_pa
#endif /* CONFIG_XIP_KERNEL */
-void setup_bootmem(void);
void paging_init(void);
void misc_mem_init(void);
projects / linux-2.6-microblaze.git / blobdiff