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Diffstat (limited to 'include/asm-xtensa/asmmacro.h')
-rw-r--r-- | include/asm-xtensa/asmmacro.h | 153 |
1 files changed, 0 insertions, 153 deletions
diff --git a/include/asm-xtensa/asmmacro.h b/include/asm-xtensa/asmmacro.h deleted file mode 100644 index 76915cabad17..000000000000 --- a/include/asm-xtensa/asmmacro.h +++ /dev/null | |||
@@ -1,153 +0,0 @@ | |||
1 | /* | ||
2 | * include/asm-xtensa/asmmacro.h | ||
3 | * | ||
4 | * This file is subject to the terms and conditions of the GNU General Public | ||
5 | * License. See the file "COPYING" in the main directory of this archive | ||
6 | * for more details. | ||
7 | * | ||
8 | * Copyright (C) 2005 Tensilica Inc. | ||
9 | */ | ||
10 | |||
11 | #ifndef _XTENSA_ASMMACRO_H | ||
12 | #define _XTENSA_ASMMACRO_H | ||
13 | |||
14 | #include <asm/variant/core.h> | ||
15 | |||
16 | /* | ||
17 | * Some little helpers for loops. Use zero-overhead-loops | ||
18 | * where applicable and if supported by the processor. | ||
19 | * | ||
20 | * __loopi ar, at, size, inc | ||
21 | * ar register initialized with the start address | ||
22 | * at scratch register used by macro | ||
23 | * size size immediate value | ||
24 | * inc increment | ||
25 | * | ||
26 | * __loops ar, as, at, inc_log2[, mask_log2][, cond][, ncond] | ||
27 | * ar register initialized with the start address | ||
28 | * as register initialized with the size | ||
29 | * at scratch register use by macro | ||
30 | * inc_log2 increment [in log2] | ||
31 | * mask_log2 mask [in log2] | ||
32 | * cond true condition (used in loop'cond') | ||
33 | * ncond false condition (used in b'ncond') | ||
34 | * | ||
35 | * __loop as | ||
36 | * restart loop. 'as' register must not have been modified! | ||
37 | * | ||
38 | * __endla ar, at, incr | ||
39 | * ar start address (modified) | ||
40 | * as scratch register used by macro | ||
41 | * inc increment | ||
42 | */ | ||
43 | |||
44 | /* | ||
45 | * loop for given size as immediate | ||
46 | */ | ||
47 | |||
48 | .macro __loopi ar, at, size, incr | ||
49 | |||
50 | #if XCHAL_HAVE_LOOPS | ||
51 | movi \at, ((\size + \incr - 1) / (\incr)) | ||
52 | loop \at, 99f | ||
53 | #else | ||
54 | addi \at, \ar, \size | ||
55 | 98: | ||
56 | #endif | ||
57 | |||
58 | .endm | ||
59 | |||
60 | /* | ||
61 | * loop for given size in register | ||
62 | */ | ||
63 | |||
64 | .macro __loops ar, as, at, incr_log2, mask_log2, cond, ncond | ||
65 | |||
66 | #if XCHAL_HAVE_LOOPS | ||
67 | .ifgt \incr_log2 - 1 | ||
68 | addi \at, \as, (1 << \incr_log2) - 1 | ||
69 | .ifnc \mask_log2, | ||
70 | extui \at, \at, \incr_log2, \mask_log2 | ||
71 | .else | ||
72 | srli \at, \at, \incr_log2 | ||
73 | .endif | ||
74 | .endif | ||
75 | loop\cond \at, 99f | ||
76 | #else | ||
77 | .ifnc \mask_log2, | ||
78 | extui \at, \as, \incr_log2, \mask_log2 | ||
79 | .else | ||
80 | .ifnc \ncond, | ||
81 | srli \at, \as, \incr_log2 | ||
82 | .endif | ||
83 | .endif | ||
84 | .ifnc \ncond, | ||
85 | b\ncond \at, 99f | ||
86 | |||
87 | .endif | ||
88 | .ifnc \mask_log2, | ||
89 | slli \at, \at, \incr_log2 | ||
90 | add \at, \ar, \at | ||
91 | .else | ||
92 | add \at, \ar, \as | ||
93 | .endif | ||
94 | #endif | ||
95 | 98: | ||
96 | |||
97 | .endm | ||
98 | |||
99 | /* | ||
100 | * loop from ar to ax | ||
101 | */ | ||
102 | |||
103 | .macro __loopt ar, as, at, incr_log2 | ||
104 | |||
105 | #if XCHAL_HAVE_LOOPS | ||
106 | sub \at, \as, \ar | ||
107 | .ifgt \incr_log2 - 1 | ||
108 | addi \at, \at, (1 << \incr_log2) - 1 | ||
109 | srli \at, \at, \incr_log2 | ||
110 | .endif | ||
111 | loop \at, 99f | ||
112 | #else | ||
113 | 98: | ||
114 | #endif | ||
115 | |||
116 | .endm | ||
117 | |||
118 | /* | ||
119 | * restart loop. registers must be unchanged | ||
120 | */ | ||
121 | |||
122 | .macro __loop as | ||
123 | |||
124 | #if XCHAL_HAVE_LOOPS | ||
125 | loop \as, 99f | ||
126 | #else | ||
127 | 98: | ||
128 | #endif | ||
129 | |||
130 | .endm | ||
131 | |||
132 | /* | ||
133 | * end of loop with no increment of the address. | ||
134 | */ | ||
135 | |||
136 | .macro __endl ar, as | ||
137 | #if !XCHAL_HAVE_LOOPS | ||
138 | bltu \ar, \as, 98b | ||
139 | #endif | ||
140 | 99: | ||
141 | .endm | ||
142 | |||
143 | /* | ||
144 | * end of loop with increment of the address. | ||
145 | */ | ||
146 | |||
147 | .macro __endla ar, as, incr | ||
148 | addi \ar, \ar, \incr | ||
149 | __endl \ar \as | ||
150 | .endm | ||
151 | |||
152 | |||
153 | #endif /* _XTENSA_ASMMACRO_H */ | ||