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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /include/asm-sparc/xor.h
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'include/asm-sparc/xor.h')
-rw-r--r--include/asm-sparc/xor.h269
1 files changed, 269 insertions, 0 deletions
diff --git a/include/asm-sparc/xor.h b/include/asm-sparc/xor.h
new file mode 100644
index 000000000000..f34b2cfa8206
--- /dev/null
+++ b/include/asm-sparc/xor.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
23static void
24sparc_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
60static void
61sparc_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
111static void
112sparc_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
175static void
176sparc_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
252static 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)
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