waterDataFluctuationCorrelation dataOperationOfSprayTerminal.h 袁明明 commit at 2021-04-25

waterDataFluctuationCorrelation/databaseOperation/dataOperationOfSprayTerminal.h

@@ -512,3 +512,182 @@ do {									\
 		".section .fixup,\"ax\"\n"				\
 		"	.balign 4\n"					\
 		"5:	addi	%3, #1\n"				\
+		"	addi	%1, #-4\n"				\
+		"	.fillinsn\n"					\
+		"6:	slli	%3, #2\n"				\
+		"	add	%2, %3\n"				\
+		"	addi	%0, #4\n"				\
+		"	.fillinsn\n"					\
+		"7:	ldi	r14, #0		; store zero \n"	\
+		"	.fillinsn\n"					\
+		"8:	addi	%2, #-1\n"				\
+		"	stb	r14, @%0	; ACE? \n"		\
+		"	addi	%0, #1\n"				\
+		"	bnez	%2, 8b\n"				\
+		"	seth	r14, #high(9b)\n"			\
+		"	or3	r14, r14, #low(9b)\n"			\
+		"	jmp	r14\n"					\
+		".previous\n"						\
+		".section __ex_table,\"a\"\n"				\
+		"	.balign 4\n"					\
+		"	.long 0b,6b\n"					\
+		"	.long 1b,5b\n"					\
+		"	.long 2b,7b\n"					\
+		"	.long 3b,7b\n"					\
+		".previous\n"						\
+		: "=&r" (__dst), "=&r" (__src), "=&r" (size),		\
+		  "=&r" (__c)						\
+		: "0" (to), "1" (from), "2" (size), "3" (size / 4)	\
+		: "r14", "memory");					\
+} while (0)
+
+
+/* We let the __ versions of copy_from/to_user inline, because they're often
+ * used in fast paths and have only a small space overhead.
+ */
+static inline unsigned long __generic_copy_from_user_nocheck(void *to,
+	const void __user *from, unsigned long n)
+{
+	__copy_user_zeroing(to,from,n);
+	return n;
+}
+
+static inline unsigned long __generic_copy_to_user_nocheck(void __user *to,
+	const void *from, unsigned long n)
+{
+	__copy_user(to,from,n);
+	return n;
+}
+
+unsigned long __generic_copy_to_user(void __user *, const void *, unsigned long);
+unsigned long __generic_copy_from_user(void *, const void __user *, unsigned long);
+
+/**
+ * __copy_to_user: - Copy a block of data into user space, with less checking.
+ * @to:   Destination address, in user space.
+ * @from: Source address, in kernel space.
+ * @n:    Number of bytes to copy.
+ *
+ * Context: User context only.  This function may sleep.
+ *
+ * Copy data from kernel space to user space.  Caller must check
+ * the specified block with access_ok() before calling this function.
+ *
+ * Returns number of bytes that could not be copied.
+ * On success, this will be zero.
+ */
+#define __copy_to_user(to,from,n)			\
+	__generic_copy_to_user_nocheck((to),(from),(n))
+
+#define __copy_to_user_inatomic __copy_to_user
+#define __copy_from_user_inatomic __copy_from_user
+
+/**
+ * copy_to_user: - Copy a block of data into user space.
+ * @to:   Destination address, in user space.
+ * @from: Source address, in kernel space.
+ * @n:    Number of bytes to copy.
+ *
+ * Context: User context only.  This function may sleep.
+ *
+ * Copy data from kernel space to user space.
+ *
+ * Returns number of bytes that could not be copied.
+ * On success, this will be zero.
+ */
+#define copy_to_user(to,from,n)				\
+({							\
+	might_sleep();					\
+	__generic_copy_to_user((to),(from),(n));	\
+})
+
+/**
+ * __copy_from_user: - Copy a block of data from user space, with less checking. * @to:   Destination address, in kernel space.
+ * @from: Source address, in user space.
+ * @n:    Number of bytes to copy.
+ *
+ * Context: User context only.  This function may sleep.
+ *
+ * Copy data from user space to kernel space.  Caller must check
+ * the specified block with access_ok() before calling this function.
+ *
+ * Returns number of bytes that could not be copied.
+ * On success, this will be zero.
+ *
+ * If some data could not be copied, this function will pad the copied
+ * data to the requested size using zero bytes.
+ */
+#define __copy_from_user(to,from,n)			\
+	__generic_copy_from_user_nocheck((to),(from),(n))
+
+/**
+ * copy_from_user: - Copy a block of data from user space.
+ * @to:   Destination address, in kernel space.
+ * @from: Source address, in user space.
+ * @n:    Number of bytes to copy.
+ *
+ * Context: User context only.  This function may sleep.
+ *
+ * Copy data from user space to kernel space.
+ *
+ * Returns number of bytes that could not be copied.
+ * On success, this will be zero.
+ *
+ * If some data could not be copied, this function will pad the copied
+ * data to the requested size using zero bytes.
+ */
+#define copy_from_user(to,from,n)			\
+({							\
+	might_sleep();					\
+	__generic_copy_from_user((to),(from),(n));	\
+})
+
+long __must_check strncpy_from_user(char *dst, const char __user *src,
+				long count);
+long __must_check __strncpy_from_user(char *dst,
+				const char __user *src, long count);
+
+/**
+ * __clear_user: - Zero a block of memory in user space, with less checking.
+ * @to:   Destination address, in user space.
+ * @n:    Number of bytes to zero.
+ *
+ * Zero a block of memory in user space.  Caller must check
+ * the specified block with access_ok() before calling this function.
+ *
+ * Returns number of bytes that could not be cleared.
+ * On success, this will be zero.
+ */
+unsigned long __clear_user(void __user *mem, unsigned long len);
+
+/**
+ * clear_user: - Zero a block of memory in user space.
+ * @to:   Destination address, in user space.
+ * @n:    Number of bytes to zero.
+ *
+ * Zero a block of memory in user space.  Caller must check
+ * the specified block with access_ok() before calling this function.
+ *
+ * Returns number of bytes that could not be cleared.
+ * On success, this will be zero.
+ */
+unsigned long clear_user(void __user *mem, unsigned long len);
+
+/**
+ * strlen_user: - Get the size of a string in user space.
+ * @str: The string to measure.
+ *
+ * Context: User context only.  This function may sleep.
+ *
+ * Get the size of a NUL-terminated string in user space.
+ *
+ * Returns the size of the string INCLUDING the terminating NUL.
+ * On exception, returns 0.
+ *
+ * If there is a limit on the length of a valid string, you may wish to
+ * consider using strnlen_user() instead.
+ */
+#define strlen_user(str) strnlen_user(str, ~0UL >> 1)
+long strnlen_user(const char __user *str, long n);
+
+#endif /* _ASM_M32R_UACCESS_H */