waterDataFluctuationCorrelation rtuDataOperationAnalysis.h 朱涛 commit at 2021-01-20

waterDataFluctuationCorrelation/fluctuationCorrelationOfSprayEnd/rtuDataOperationAnalysis.h

@@ -591,3 +591,127 @@ do {									\
 	default: __put_user_unaligned_unknown(); break;			\
 	}								\
 	__pu_err;							\
+})
+
+#define __put_user_unaligned_check(x,ptr,size)				\
+({									\
+	__typeof__(*(ptr)) __user *__pu_addr = (ptr);			\
+	__typeof__(*(ptr)) __pu_val = (x);				\
+	int __pu_err = -EFAULT;						\
+									\
+	if (likely(access_ok(VERIFY_WRITE,  __pu_addr, size))) {	\
+		switch (size) {						\
+		case 1: __put_user_asm("sb", __pu_addr); break;		\
+		case 2: __put_user_unaligned_asm("ush", __pu_addr); break; \
+		case 4: __put_user_unaligned_asm("usw", __pu_addr); break; \
+		case 8: __PUT_USER_UNALGINED_DW(__pu_addr); break;	\
+		default: __put_user_unaligned_unknown(); break;		\
+		}							\
+	}								\
+	__pu_err;							\
+})
+
+#define __put_user_unaligned_asm(insn, ptr)				\
+{									\
+	__asm__ __volatile__(						\
+	"1:	" insn "	%z2, %3		# __put_user_unaligned_asm\n" \
+	"2:							\n"	\
+	"	.section	.fixup,\"ax\"			\n"	\
+	"3:	li	%0, %4					\n"	\
+	"	j	2b					\n"	\
+	"	.previous					\n"	\
+	"	.section	__ex_table,\"a\"		\n"	\
+	"	" __UA_ADDR "	1b, 3b				\n"	\
+	"	.previous					\n"	\
+	: "=r" (__pu_err)						\
+	: "0" (0), "Jr" (__pu_val), "o" (__m(ptr)),			\
+	  "i" (-EFAULT));						\
+}
+
+#define __put_user_unaligned_asm_ll32(ptr)				\
+{									\
+	__asm__ __volatile__(						\
+	"1:	sw	%2, (%3)	# __put_user_unaligned_asm_ll32	\n" \
+	"2:	sw	%D2, 4(%3)				\n"	\
+	"3:							\n"	\
+	"	.section	.fixup,\"ax\"			\n"	\
+	"4:	li	%0, %4					\n"	\
+	"	j	3b					\n"	\
+	"	.previous					\n"	\
+	"	.section	__ex_table,\"a\"		\n"	\
+	"	" __UA_ADDR "	1b, 4b				\n"	\
+	"	" __UA_ADDR "	1b + 4, 4b			\n"	\
+	"	" __UA_ADDR "	2b, 4b				\n"	\
+	"	" __UA_ADDR "	2b + 4, 4b			\n"	\
+	"	.previous"						\
+	: "=r" (__pu_err)						\
+	: "0" (0), "r" (__pu_val), "r" (ptr),				\
+	  "i" (-EFAULT));						\
+}
+
+extern void __put_user_unaligned_unknown(void);
+
+/*
+ * We're generating jump to subroutines which will be outside the range of
+ * jump instructions
+ */
+#ifdef MODULE
+#define __MODULE_JAL(destination)					\
+	".set\tnoat\n\t"						\
+	__UA_LA "\t$1, " #destination "\n\t" 				\
+	"jalr\t$1\n\t"							\
+	".set\tat\n\t"
+#else
+#define __MODULE_JAL(destination)					\
+	"jal\t" #destination "\n\t"
+#endif
+
+#ifndef CONFIG_CPU_DADDI_WORKAROUNDS
+#define DADDI_SCRATCH "$0"
+#else
+#define DADDI_SCRATCH "$3"
+#endif
+
+extern size_t __copy_user(void *__to, const void *__from, size_t __n);
+
+#define __invoke_copy_to_user(to, from, n)				\
+({									\
+	register void __user *__cu_to_r __asm__("$4");			\
+	register const void *__cu_from_r __asm__("$5");			\
+	register long __cu_len_r __asm__("$6");				\
+									\
+	__cu_to_r = (to);						\
+	__cu_from_r = (from);						\
+	__cu_len_r = (n);						\
+	__asm__ __volatile__(						\
+	__MODULE_JAL(__copy_user)					\
+	: "+r" (__cu_to_r), "+r" (__cu_from_r), "+r" (__cu_len_r)	\
+	:								\
+	: "$8", "$9", "$10", "$11", "$12", "$14", "$15", "$24", "$31",	\
+	  DADDI_SCRATCH, "memory");					\
+	__cu_len_r;							\
+})
+
+/*
+ * __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)					\
+({									\
+	void __user *__cu_to;						\
+	const void *__cu_from;						\
+	long __cu_len;							\
+									\
+	__cu_to = (to);							\
+	__cu_from = (from);						\
+	__cu_len = (n);							\