waterDataFluctuationCorrelation fireHydrantDataOperation.h 李欣儒 commit at 2021-04-06

waterDataFluctuationCorrelation/databaseOperation/fireHydrantDataOperation.h

@@ -109,3 +109,181 @@ extern unsigned long empty_zero_page[1024];
 	| _PAGE_DIRTY )
 #define _KERNPG_TABLE	\
 	( _PAGE_PRESENT | _PAGE_WRITE | _PAGE_READ | _PAGE_ACCESSED \
+	| _PAGE_DIRTY )
+#define _PAGE_CHG_MASK	\
+	( PTE_MASK | _PAGE_ACCESSED | _PAGE_DIRTY )
+
+#ifdef CONFIG_MMU
+#define PAGE_NONE	\
+	__pgprot(_PAGE_PROTNONE | _PAGE_ACCESSED)
+#define PAGE_SHARED	\
+	__pgprot(_PAGE_PRESENT | _PAGE_WRITE | _PAGE_READ | _PAGE_ACCESSED)
+#define PAGE_SHARED_EXEC \
+	__pgprot(_PAGE_PRESENT | _PAGE_EXEC | _PAGE_WRITE | _PAGE_READ \
+		| _PAGE_ACCESSED)
+#define PAGE_COPY	\
+	__pgprot(_PAGE_PRESENT | _PAGE_READ | _PAGE_ACCESSED)
+#define PAGE_COPY_EXEC	\
+	__pgprot(_PAGE_PRESENT | _PAGE_EXEC | _PAGE_READ | _PAGE_ACCESSED)
+#define PAGE_READONLY	\
+	__pgprot(_PAGE_PRESENT | _PAGE_READ | _PAGE_ACCESSED)
+#define PAGE_READONLY_EXEC \
+	__pgprot(_PAGE_PRESENT | _PAGE_EXEC | _PAGE_READ | _PAGE_ACCESSED)
+
+#define __PAGE_KERNEL	\
+	( _PAGE_PRESENT | _PAGE_EXEC | _PAGE_WRITE | _PAGE_READ | _PAGE_DIRTY \
+	| _PAGE_ACCESSED )
+#define __PAGE_KERNEL_RO	( __PAGE_KERNEL & ~_PAGE_WRITE )
+#define __PAGE_KERNEL_NOCACHE	( __PAGE_KERNEL | _PAGE_NONCACHABLE)
+
+#define MAKE_GLOBAL(x)	__pgprot((x) | _PAGE_GLOBAL)
+
+#define PAGE_KERNEL		MAKE_GLOBAL(__PAGE_KERNEL)
+#define PAGE_KERNEL_RO		MAKE_GLOBAL(__PAGE_KERNEL_RO)
+#define PAGE_KERNEL_NOCACHE	MAKE_GLOBAL(__PAGE_KERNEL_NOCACHE)
+
+#else
+#define PAGE_NONE		__pgprot(0)
+#define PAGE_SHARED		__pgprot(0)
+#define PAGE_SHARED_EXEC	__pgprot(0)
+#define PAGE_COPY		__pgprot(0)
+#define PAGE_COPY_EXEC		__pgprot(0)
+#define PAGE_READONLY		__pgprot(0)
+#define PAGE_READONLY_EXEC	__pgprot(0)
+
+#define PAGE_KERNEL		__pgprot(0)
+#define PAGE_KERNEL_RO		__pgprot(0)
+#define PAGE_KERNEL_NOCACHE	__pgprot(0)
+#endif /* CONFIG_MMU */
+
+	/* xwr */
+#define __P000	PAGE_NONE
+#define __P001	PAGE_READONLY
+#define __P010	PAGE_COPY
+#define __P011	PAGE_COPY
+#define __P100	PAGE_READONLY_EXEC
+#define __P101	PAGE_READONLY_EXEC
+#define __P110	PAGE_COPY_EXEC
+#define __P111	PAGE_COPY_EXEC
+
+#define __S000	PAGE_NONE
+#define __S001	PAGE_READONLY
+#define __S010	PAGE_SHARED
+#define __S011	PAGE_SHARED
+#define __S100	PAGE_READONLY_EXEC
+#define __S101	PAGE_READONLY_EXEC
+#define __S110	PAGE_SHARED_EXEC
+#define __S111	PAGE_SHARED_EXEC
+
+/* page table for 0-4MB for everybody */
+
+#define pte_present(x)	(pte_val(x) & (_PAGE_PRESENT | _PAGE_PROTNONE))
+#define pte_clear(mm,addr,xp)	do { set_pte_at(mm, addr, xp, __pte(0)); } while (0)
+
+#define pmd_none(x)	(!pmd_val(x))
+#define pmd_present(x)	(pmd_val(x) & _PAGE_PRESENT)
+#define pmd_clear(xp)	do { set_pmd(xp, __pmd(0)); } while (0)
+#define	pmd_bad(x)	((pmd_val(x) & ~PAGE_MASK) != _KERNPG_TABLE)
+
+#define pages_to_mb(x)	((x) >> (20 - PAGE_SHIFT))
+
+/*
+ * The following only work if pte_present() is true.
+ * Undefined behaviour if not..
+ */
+static inline int pte_dirty(pte_t pte)
+{
+	return pte_val(pte) & _PAGE_DIRTY;
+}
+
+static inline int pte_young(pte_t pte)
+{
+	return pte_val(pte) & _PAGE_ACCESSED;
+}
+
+static inline int pte_write(pte_t pte)
+{
+	return pte_val(pte) & _PAGE_WRITE;
+}
+
+/*
+ * The following only works if pte_present() is not true.
+ */
+static inline int pte_file(pte_t pte)
+{
+	return pte_val(pte) & _PAGE_FILE;
+}
+
+static inline int pte_special(pte_t pte)
+{
+	return 0;
+}
+
+static inline pte_t pte_mkclean(pte_t pte)
+{
+	pte_val(pte) &= ~_PAGE_DIRTY;
+	return pte;
+}
+
+static inline pte_t pte_mkold(pte_t pte)
+{
+	pte_val(pte) &= ~_PAGE_ACCESSED;
+	return pte;
+}
+
+static inline pte_t pte_wrprotect(pte_t pte)
+{
+	pte_val(pte) &= ~_PAGE_WRITE;
+	return pte;
+}
+
+static inline pte_t pte_mkdirty(pte_t pte)
+{
+	pte_val(pte) |= _PAGE_DIRTY;
+	return pte;
+}
+
+static inline pte_t pte_mkyoung(pte_t pte)
+{
+	pte_val(pte) |= _PAGE_ACCESSED;
+	return pte;
+}
+
+static inline pte_t pte_mkwrite(pte_t pte)
+{
+	pte_val(pte) |= _PAGE_WRITE;
+	return pte;
+}
+
+static inline pte_t pte_mkspecial(pte_t pte)
+{
+	return pte;
+}
+
+static inline  int ptep_test_and_clear_young(struct vm_area_struct *vma, unsigned long addr, pte_t *ptep)
+{
+	return test_and_clear_bit(_PAGE_BIT_ACCESSED, ptep);
+}
+
+static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr, pte_t *ptep)
+{
+	clear_bit(_PAGE_BIT_WRITE, ptep);
+}
+
+/*
+ * Macro and implementation to make a page protection as uncachable.
+ */
+static inline pgprot_t pgprot_noncached(pgprot_t _prot)
+{
+	unsigned long prot = pgprot_val(_prot);
+
+	prot |= _PAGE_NONCACHABLE;
+	return __pgprot(prot);
+}
+
+#define pgprot_writecombine(prot) pgprot_noncached(prot)
+
+/*
+ * Conversion functions: convert a page and protection to a page entry,
+ * and a page entry and page directory to the page they refer to.
+ */