1 // SPDX-License-Identifier: GPL-2.0
2 // Copyright (C) 2018 Hangzhou C-SKY Microsystems co.,ltd.
15 	"       mov     %3, %1          \n"  in raw_copy_from_user()
16 	"       or      %3, %2          \n"  in raw_copy_from_user()
17 	"       andi    %3, 3           \n"  in raw_copy_from_user()
18 	"       cmpnei  %3, 0           \n"  in raw_copy_from_user()
22 	"       bt      3f              \n"  in raw_copy_from_user()
23 	"2:     ldw     %3, (%2, 0)     \n"  in raw_copy_from_user()
24 	"10:    ldw     %4, (%2, 4)     \n"  in raw_copy_from_user()
25 	"       stw     %3, (%1, 0)     \n"  in raw_copy_from_user()
26 	"       stw     %4, (%1, 4)     \n"  in raw_copy_from_user()
27 	"11:    ldw     %3, (%2, 8)     \n"  in raw_copy_from_user()
28 	"12:    ldw     %4, (%2, 12)    \n"  in raw_copy_from_user()
29 	"       stw     %3, (%1, 8)     \n"  in raw_copy_from_user()
30 	"       stw     %4, (%1, 12)    \n"  in raw_copy_from_user()
35 	"3:     cmplti  %0, 4           \n"  in raw_copy_from_user()
37 	"4:     ldw     %3, (%2, 0)     \n"  in raw_copy_from_user()
38 	"       stw     %3, (%1, 0)     \n"  in raw_copy_from_user()
39 	"       addi    %2, 4           \n"  in raw_copy_from_user()
40 	"       addi    %1, 4           \n"  in raw_copy_from_user()
41 	"       subi    %0, 4           \n"  in raw_copy_from_user()
42 	"       br      3b              \n"  in raw_copy_from_user()
45 	"6:     ldb     %3, (%2, 0)     \n"  in raw_copy_from_user()
46 	"       stb     %3, (%1, 0)     \n"  in raw_copy_from_user()
51 	"8:     stw     %3, (%1, 0)     \n"  in raw_copy_from_user()
52 	"       subi    %0, 4           \n"  in raw_copy_from_user()
56 	"13:    stw     %3, (%1, 8)     \n"  in raw_copy_from_user()
62 	".long    4b, 7f                \n"  in raw_copy_from_user()
86 	"       mov     %3, %1          \n"  in raw_copy_to_user()
87 	"       or      %3, %2          \n"  in raw_copy_to_user()
88 	"       andi    %3, 3           \n"  in raw_copy_to_user()
89 	"       cmpnei  %3, 0           \n"  in raw_copy_to_user()
92 	"1:     cmplti  %0, 16          \n" /* 4W */  in raw_copy_to_user()
93 	"       bt      3f              \n"  in raw_copy_to_user()
94 	"       ldw     %3, (%2, 0)     \n"  in raw_copy_to_user()
95 	"       ldw     %4, (%2, 4)     \n"  in raw_copy_to_user()
98 	"2:     stw     %3, (%1, 0)     \n"  in raw_copy_to_user()
99 	"9:     stw     %4, (%1, 4)     \n"  in raw_copy_to_user()
106 	"3:     cmplti  %0, 4           \n" /* 1W */  in raw_copy_to_user()
108 	"       ldw     %3, (%2, 0)     \n"  in raw_copy_to_user()
109 	"4:     stw     %3, (%1, 0)     \n"  in raw_copy_to_user()
110 	"       addi    %2, 4           \n"  in raw_copy_to_user()
111 	"       addi    %1, 4           \n"  in raw_copy_to_user()
112 	"       subi    %0, 4           \n"  in raw_copy_to_user()
113 	"       br      3b              \n"  in raw_copy_to_user()
116 	"       ldb     %3, (%2, 0)     \n"  in raw_copy_to_user()
117 	"6:     stb     %3, (%1, 0)     \n"  in raw_copy_to_user()
122 	"7:     subi	%0,  4          \n"  in raw_copy_to_user()
123 	"8:     subi	%0,  4          \n"  in raw_copy_to_user()
124 	"12:    subi	%0,  4          \n"  in raw_copy_to_user()
129 	".long    4b, 13f               \n"  in raw_copy_to_user()
146  * __clear_user: - Zero a block of memory in user space, with less checking.
164 	"       mov     %3, %1          \n"  in __clear_user()
165 	"       andi    %3, 3           \n"  in __clear_user()
166 	"       cmpnei  %3, 0           \n"  in __clear_user()
169 	"1:     cmplti  %0, 32          \n" /* 4W */  in __clear_user()
170 	"       bt      3f              \n"  in __clear_user()
172 	"10:    stw     %2, (%1, 4)     \n"  in __clear_user()
182 	"3:     cmplti  %0, 4           \n" /* 1W */  in __clear_user()
184 	"4:     stw     %2, (%1, 0)     \n"  in __clear_user()
185 	"       addi    %1, 4           \n"  in __clear_user()
186 	"       subi    %0, 4           \n"  in __clear_user()
187 	"       br      3b              \n"  in __clear_user()
204 	".long    4b, 9b                \n"  in __clear_user()