hc
2024-05-10 37f49e37ab4cb5d0bc4c60eb5c6d4dd57db767bb
kernel/arch/sh/include/asm/uaccess_32.h
....@@ -26,6 +26,9 @@
2626 case 4: \
2727 __get_user_asm(x, ptr, retval, "l"); \
2828 break; \
29
+ case 8: \
30
+ __get_user_u64(x, ptr, retval); \
31
+ break; \
2932 default: \
3033 __get_user_unknown(); \
3134 break; \
....@@ -66,6 +69,56 @@
6669
6770 extern void __get_user_unknown(void);
6871
72
+#if defined(CONFIG_CPU_LITTLE_ENDIAN)
73
+#define __get_user_u64(x, addr, err) \
74
+({ \
75
+__asm__ __volatile__( \
76
+ "1:\n\t" \
77
+ "mov.l %2,%R1\n\t" \
78
+ "mov.l %T2,%S1\n\t" \
79
+ "2:\n" \
80
+ ".section .fixup,\"ax\"\n" \
81
+ "3:\n\t" \
82
+ "mov #0,%R1\n\t" \
83
+ "mov #0,%S1\n\t" \
84
+ "mov.l 4f, %0\n\t" \
85
+ "jmp @%0\n\t" \
86
+ " mov %3, %0\n\t" \
87
+ ".balign 4\n" \
88
+ "4: .long 2b\n\t" \
89
+ ".previous\n" \
90
+ ".section __ex_table,\"a\"\n\t" \
91
+ ".long 1b, 3b\n\t" \
92
+ ".long 1b + 2, 3b\n\t" \
93
+ ".previous" \
94
+ :"=&r" (err), "=&r" (x) \
95
+ :"m" (__m(addr)), "i" (-EFAULT), "0" (err)); })
96
+#else
97
+#define __get_user_u64(x, addr, err) \
98
+({ \
99
+__asm__ __volatile__( \
100
+ "1:\n\t" \
101
+ "mov.l %2,%S1\n\t" \
102
+ "mov.l %T2,%R1\n\t" \
103
+ "2:\n" \
104
+ ".section .fixup,\"ax\"\n" \
105
+ "3:\n\t" \
106
+ "mov #0,%S1\n\t" \
107
+ "mov #0,%R1\n\t" \
108
+ "mov.l 4f, %0\n\t" \
109
+ "jmp @%0\n\t" \
110
+ " mov %3, %0\n\t" \
111
+ ".balign 4\n" \
112
+ "4: .long 2b\n\t" \
113
+ ".previous\n" \
114
+ ".section __ex_table,\"a\"\n\t" \
115
+ ".long 1b, 3b\n\t" \
116
+ ".long 1b + 2, 3b\n\t" \
117
+ ".previous" \
118
+ :"=&r" (err), "=&r" (x) \
119
+ :"m" (__m(addr)), "i" (-EFAULT), "0" (err)); })
120
+#endif
121
+
69122 #define __put_user_size(x,ptr,size,retval) \
70123 do { \
71124 retval = 0; \