diff options
Diffstat (limited to 'include/asm-sparc/xor_32.h')
-rw-r--r-- | include/asm-sparc/xor_32.h | 269 |
1 files changed, 269 insertions, 0 deletions
diff --git a/include/asm-sparc/xor_32.h b/include/asm-sparc/xor_32.h new file mode 100644 index 000000000000..f34b2cfa8206 --- /dev/null +++ b/include/asm-sparc/xor_32.h | |||
@@ -0,0 +1,269 @@ | |||
1 | /* | ||
2 | * include/asm-sparc/xor.h | ||
3 | * | ||
4 | * Optimized RAID-5 checksumming functions for 32-bit Sparc. | ||
5 | * | ||
6 | * This program is free software; you can redistribute it and/or modify | ||
7 | * it under the terms of the GNU General Public License as published by | ||
8 | * the Free Software Foundation; either version 2, or (at your option) | ||
9 | * any later version. | ||
10 | * | ||
11 | * You should have received a copy of the GNU General Public License | ||
12 | * (for example /usr/src/linux/COPYING); if not, write to the Free | ||
13 | * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | ||
14 | */ | ||
15 | |||
16 | /* | ||
17 | * High speed xor_block operation for RAID4/5 utilizing the | ||
18 | * ldd/std SPARC instructions. | ||
19 | * | ||
20 | * Copyright (C) 1999 Jakub Jelinek (jj@ultra.linux.cz) | ||
21 | */ | ||
22 | |||
23 | static void | ||
24 | sparc_2(unsigned long bytes, unsigned long *p1, unsigned long *p2) | ||
25 | { | ||
26 | int lines = bytes / (sizeof (long)) / 8; | ||
27 | |||
28 | do { | ||
29 | __asm__ __volatile__( | ||
30 | "ldd [%0 + 0x00], %%g2\n\t" | ||
31 | "ldd [%0 + 0x08], %%g4\n\t" | ||
32 | "ldd [%0 + 0x10], %%o0\n\t" | ||
33 | "ldd [%0 + 0x18], %%o2\n\t" | ||
34 | "ldd [%1 + 0x00], %%o4\n\t" | ||
35 | "ldd [%1 + 0x08], %%l0\n\t" | ||
36 | "ldd [%1 + 0x10], %%l2\n\t" | ||
37 | "ldd [%1 + 0x18], %%l4\n\t" | ||
38 | "xor %%g2, %%o4, %%g2\n\t" | ||
39 | "xor %%g3, %%o5, %%g3\n\t" | ||
40 | "xor %%g4, %%l0, %%g4\n\t" | ||
41 | "xor %%g5, %%l1, %%g5\n\t" | ||
42 | "xor %%o0, %%l2, %%o0\n\t" | ||
43 | "xor %%o1, %%l3, %%o1\n\t" | ||
44 | "xor %%o2, %%l4, %%o2\n\t" | ||
45 | "xor %%o3, %%l5, %%o3\n\t" | ||
46 | "std %%g2, [%0 + 0x00]\n\t" | ||
47 | "std %%g4, [%0 + 0x08]\n\t" | ||
48 | "std %%o0, [%0 + 0x10]\n\t" | ||
49 | "std %%o2, [%0 + 0x18]\n" | ||
50 | : | ||
51 | : "r" (p1), "r" (p2) | ||
52 | : "g2", "g3", "g4", "g5", | ||
53 | "o0", "o1", "o2", "o3", "o4", "o5", | ||
54 | "l0", "l1", "l2", "l3", "l4", "l5"); | ||
55 | p1 += 8; | ||
56 | p2 += 8; | ||
57 | } while (--lines > 0); | ||
58 | } | ||
59 | |||
60 | static void | ||
61 | sparc_3(unsigned long bytes, unsigned long *p1, unsigned long *p2, | ||
62 | unsigned long *p3) | ||
63 | { | ||
64 | int lines = bytes / (sizeof (long)) / 8; | ||
65 | |||
66 | do { | ||
67 | __asm__ __volatile__( | ||
68 | "ldd [%0 + 0x00], %%g2\n\t" | ||
69 | "ldd [%0 + 0x08], %%g4\n\t" | ||
70 | "ldd [%0 + 0x10], %%o0\n\t" | ||
71 | "ldd [%0 + 0x18], %%o2\n\t" | ||
72 | "ldd [%1 + 0x00], %%o4\n\t" | ||
73 | "ldd [%1 + 0x08], %%l0\n\t" | ||
74 | "ldd [%1 + 0x10], %%l2\n\t" | ||
75 | "ldd [%1 + 0x18], %%l4\n\t" | ||
76 | "xor %%g2, %%o4, %%g2\n\t" | ||
77 | "xor %%g3, %%o5, %%g3\n\t" | ||
78 | "ldd [%2 + 0x00], %%o4\n\t" | ||
79 | "xor %%g4, %%l0, %%g4\n\t" | ||
80 | "xor %%g5, %%l1, %%g5\n\t" | ||
81 | "ldd [%2 + 0x08], %%l0\n\t" | ||
82 | "xor %%o0, %%l2, %%o0\n\t" | ||
83 | "xor %%o1, %%l3, %%o1\n\t" | ||
84 | "ldd [%2 + 0x10], %%l2\n\t" | ||
85 | "xor %%o2, %%l4, %%o2\n\t" | ||
86 | "xor %%o3, %%l5, %%o3\n\t" | ||
87 | "ldd [%2 + 0x18], %%l4\n\t" | ||
88 | "xor %%g2, %%o4, %%g2\n\t" | ||
89 | "xor %%g3, %%o5, %%g3\n\t" | ||
90 | "xor %%g4, %%l0, %%g4\n\t" | ||
91 | "xor %%g5, %%l1, %%g5\n\t" | ||
92 | "xor %%o0, %%l2, %%o0\n\t" | ||
93 | "xor %%o1, %%l3, %%o1\n\t" | ||
94 | "xor %%o2, %%l4, %%o2\n\t" | ||
95 | "xor %%o3, %%l5, %%o3\n\t" | ||
96 | "std %%g2, [%0 + 0x00]\n\t" | ||
97 | "std %%g4, [%0 + 0x08]\n\t" | ||
98 | "std %%o0, [%0 + 0x10]\n\t" | ||
99 | "std %%o2, [%0 + 0x18]\n" | ||
100 | : | ||
101 | : "r" (p1), "r" (p2), "r" (p3) | ||
102 | : "g2", "g3", "g4", "g5", | ||
103 | "o0", "o1", "o2", "o3", "o4", "o5", | ||
104 | "l0", "l1", "l2", "l3", "l4", "l5"); | ||
105 | p1 += 8; | ||
106 | p2 += 8; | ||
107 | p3 += 8; | ||
108 | } while (--lines > 0); | ||
109 | } | ||
110 | |||
111 | static void | ||
112 | sparc_4(unsigned long bytes, unsigned long *p1, unsigned long *p2, | ||
113 | unsigned long *p3, unsigned long *p4) | ||
114 | { | ||
115 | int lines = bytes / (sizeof (long)) / 8; | ||
116 | |||
117 | do { | ||
118 | __asm__ __volatile__( | ||
119 | "ldd [%0 + 0x00], %%g2\n\t" | ||
120 | "ldd [%0 + 0x08], %%g4\n\t" | ||
121 | "ldd [%0 + 0x10], %%o0\n\t" | ||
122 | "ldd [%0 + 0x18], %%o2\n\t" | ||
123 | "ldd [%1 + 0x00], %%o4\n\t" | ||
124 | "ldd [%1 + 0x08], %%l0\n\t" | ||
125 | "ldd [%1 + 0x10], %%l2\n\t" | ||
126 | "ldd [%1 + 0x18], %%l4\n\t" | ||
127 | "xor %%g2, %%o4, %%g2\n\t" | ||
128 | "xor %%g3, %%o5, %%g3\n\t" | ||
129 | "ldd [%2 + 0x00], %%o4\n\t" | ||
130 | "xor %%g4, %%l0, %%g4\n\t" | ||
131 | "xor %%g5, %%l1, %%g5\n\t" | ||
132 | "ldd [%2 + 0x08], %%l0\n\t" | ||
133 | "xor %%o0, %%l2, %%o0\n\t" | ||
134 | "xor %%o1, %%l3, %%o1\n\t" | ||
135 | "ldd [%2 + 0x10], %%l2\n\t" | ||
136 | "xor %%o2, %%l4, %%o2\n\t" | ||
137 | "xor %%o3, %%l5, %%o3\n\t" | ||
138 | "ldd [%2 + 0x18], %%l4\n\t" | ||
139 | "xor %%g2, %%o4, %%g2\n\t" | ||
140 | "xor %%g3, %%o5, %%g3\n\t" | ||
141 | "ldd [%3 + 0x00], %%o4\n\t" | ||
142 | "xor %%g4, %%l0, %%g4\n\t" | ||
143 | "xor %%g5, %%l1, %%g5\n\t" | ||
144 | "ldd [%3 + 0x08], %%l0\n\t" | ||
145 | "xor %%o0, %%l2, %%o0\n\t" | ||
146 | "xor %%o1, %%l3, %%o1\n\t" | ||
147 | "ldd [%3 + 0x10], %%l2\n\t" | ||
148 | "xor %%o2, %%l4, %%o2\n\t" | ||
149 | "xor %%o3, %%l5, %%o3\n\t" | ||
150 | "ldd [%3 + 0x18], %%l4\n\t" | ||
151 | "xor %%g2, %%o4, %%g2\n\t" | ||
152 | "xor %%g3, %%o5, %%g3\n\t" | ||
153 | "xor %%g4, %%l0, %%g4\n\t" | ||
154 | "xor %%g5, %%l1, %%g5\n\t" | ||
155 | "xor %%o0, %%l2, %%o0\n\t" | ||
156 | "xor %%o1, %%l3, %%o1\n\t" | ||
157 | "xor %%o2, %%l4, %%o2\n\t" | ||
158 | "xor %%o3, %%l5, %%o3\n\t" | ||
159 | "std %%g2, [%0 + 0x00]\n\t" | ||
160 | "std %%g4, [%0 + 0x08]\n\t" | ||
161 | "std %%o0, [%0 + 0x10]\n\t" | ||
162 | "std %%o2, [%0 + 0x18]\n" | ||
163 | : | ||
164 | : "r" (p1), "r" (p2), "r" (p3), "r" (p4) | ||
165 | : "g2", "g3", "g4", "g5", | ||
166 | "o0", "o1", "o2", "o3", "o4", "o5", | ||
167 | "l0", "l1", "l2", "l3", "l4", "l5"); | ||
168 | p1 += 8; | ||
169 | p2 += 8; | ||
170 | p3 += 8; | ||
171 | p4 += 8; | ||
172 | } while (--lines > 0); | ||
173 | } | ||
174 | |||
175 | static void | ||
176 | sparc_5(unsigned long bytes, unsigned long *p1, unsigned long *p2, | ||
177 | unsigned long *p3, unsigned long *p4, unsigned long *p5) | ||
178 | { | ||
179 | int lines = bytes / (sizeof (long)) / 8; | ||
180 | |||
181 | do { | ||
182 | __asm__ __volatile__( | ||
183 | "ldd [%0 + 0x00], %%g2\n\t" | ||
184 | "ldd [%0 + 0x08], %%g4\n\t" | ||
185 | "ldd [%0 + 0x10], %%o0\n\t" | ||
186 | "ldd [%0 + 0x18], %%o2\n\t" | ||
187 | "ldd [%1 + 0x00], %%o4\n\t" | ||
188 | "ldd [%1 + 0x08], %%l0\n\t" | ||
189 | "ldd [%1 + 0x10], %%l2\n\t" | ||
190 | "ldd [%1 + 0x18], %%l4\n\t" | ||
191 | "xor %%g2, %%o4, %%g2\n\t" | ||
192 | "xor %%g3, %%o5, %%g3\n\t" | ||
193 | "ldd [%2 + 0x00], %%o4\n\t" | ||
194 | "xor %%g4, %%l0, %%g4\n\t" | ||
195 | "xor %%g5, %%l1, %%g5\n\t" | ||
196 | "ldd [%2 + 0x08], %%l0\n\t" | ||
197 | "xor %%o0, %%l2, %%o0\n\t" | ||
198 | "xor %%o1, %%l3, %%o1\n\t" | ||
199 | "ldd [%2 + 0x10], %%l2\n\t" | ||
200 | "xor %%o2, %%l4, %%o2\n\t" | ||
201 | "xor %%o3, %%l5, %%o3\n\t" | ||
202 | "ldd [%2 + 0x18], %%l4\n\t" | ||
203 | "xor %%g2, %%o4, %%g2\n\t" | ||
204 | "xor %%g3, %%o5, %%g3\n\t" | ||
205 | "ldd [%3 + 0x00], %%o4\n\t" | ||
206 | "xor %%g4, %%l0, %%g4\n\t" | ||
207 | "xor %%g5, %%l1, %%g5\n\t" | ||
208 | "ldd [%3 + 0x08], %%l0\n\t" | ||
209 | "xor %%o0, %%l2, %%o0\n\t" | ||
210 | "xor %%o1, %%l3, %%o1\n\t" | ||
211 | "ldd [%3 + 0x10], %%l2\n\t" | ||
212 | "xor %%o2, %%l4, %%o2\n\t" | ||
213 | "xor %%o3, %%l5, %%o3\n\t" | ||
214 | "ldd [%3 + 0x18], %%l4\n\t" | ||
215 | "xor %%g2, %%o4, %%g2\n\t" | ||
216 | "xor %%g3, %%o5, %%g3\n\t" | ||
217 | "ldd [%4 + 0x00], %%o4\n\t" | ||
218 | "xor %%g4, %%l0, %%g4\n\t" | ||
219 | "xor %%g5, %%l1, %%g5\n\t" | ||
220 | "ldd [%4 + 0x08], %%l0\n\t" | ||
221 | "xor %%o0, %%l2, %%o0\n\t" | ||
222 | "xor %%o1, %%l3, %%o1\n\t" | ||
223 | "ldd [%4 + 0x10], %%l2\n\t" | ||
224 | "xor %%o2, %%l4, %%o2\n\t" | ||
225 | "xor %%o3, %%l5, %%o3\n\t" | ||
226 | "ldd [%4 + 0x18], %%l4\n\t" | ||
227 | "xor %%g2, %%o4, %%g2\n\t" | ||
228 | "xor %%g3, %%o5, %%g3\n\t" | ||
229 | "xor %%g4, %%l0, %%g4\n\t" | ||
230 | "xor %%g5, %%l1, %%g5\n\t" | ||
231 | "xor %%o0, %%l2, %%o0\n\t" | ||
232 | "xor %%o1, %%l3, %%o1\n\t" | ||
233 | "xor %%o2, %%l4, %%o2\n\t" | ||
234 | "xor %%o3, %%l5, %%o3\n\t" | ||
235 | "std %%g2, [%0 + 0x00]\n\t" | ||
236 | "std %%g4, [%0 + 0x08]\n\t" | ||
237 | "std %%o0, [%0 + 0x10]\n\t" | ||
238 | "std %%o2, [%0 + 0x18]\n" | ||
239 | : | ||
240 | : "r" (p1), "r" (p2), "r" (p3), "r" (p4), "r" (p5) | ||
241 | : "g2", "g3", "g4", "g5", | ||
242 | "o0", "o1", "o2", "o3", "o4", "o5", | ||
243 | "l0", "l1", "l2", "l3", "l4", "l5"); | ||
244 | p1 += 8; | ||
245 | p2 += 8; | ||
246 | p3 += 8; | ||
247 | p4 += 8; | ||
248 | p5 += 8; | ||
249 | } while (--lines > 0); | ||
250 | } | ||
251 | |||
252 | static struct xor_block_template xor_block_SPARC = { | ||
253 | .name = "SPARC", | ||
254 | .do_2 = sparc_2, | ||
255 | .do_3 = sparc_3, | ||
256 | .do_4 = sparc_4, | ||
257 | .do_5 = sparc_5, | ||
258 | }; | ||
259 | |||
260 | /* For grins, also test the generic routines. */ | ||
261 | #include <asm-generic/xor.h> | ||
262 | |||
263 | #undef XOR_TRY_TEMPLATES | ||
264 | #define XOR_TRY_TEMPLATES \ | ||
265 | do { \ | ||
266 | xor_speed(&xor_block_8regs); \ | ||
267 | xor_speed(&xor_block_32regs); \ | ||
268 | xor_speed(&xor_block_SPARC); \ | ||
269 | } while (0) | ||