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Use signalfd() in io-thread
[qemu-kvm/fedora.git] / target-ppc / op_helper_mem.h
blobc8ef7ce242e374421f9d85e9449f257428ba25a3
1 /*
2 * PowerPC emulation micro-operations helpers for qemu.
3 *
4 * Copyright (c) 2003-2007 Jocelyn Mayer
5 *
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2 of the License, or (at your option) any later version.
10 *
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19 */
20
21 #include "op_mem_access.h"
22
23 /* Multiple word / string load and store */
24 void glue(do_lmw, MEMSUFFIX) (int dst)
25 {
26 for (; dst < 32; dst++, T0 += 4) {
27 env->gpr[dst] = glue(ldu32, MEMSUFFIX)((uint32_t)T0);
28 }
29 }
30
31 #if defined(TARGET_PPC64)
32 void glue(do_lmw_64, MEMSUFFIX) (int dst)
33 {
34 for (; dst < 32; dst++, T0 += 4) {
35 env->gpr[dst] = glue(ldu32, MEMSUFFIX)((uint64_t)T0);
36 }
37 }
38 #endif
39
40 void glue(do_stmw, MEMSUFFIX) (int src)
41 {
42 for (; src < 32; src++, T0 += 4) {
43 glue(st32, MEMSUFFIX)((uint32_t)T0, env->gpr[src]);
44 }
45 }
46
47 #if defined(TARGET_PPC64)
48 void glue(do_stmw_64, MEMSUFFIX) (int src)
49 {
50 for (; src < 32; src++, T0 += 4) {
51 glue(st32, MEMSUFFIX)((uint64_t)T0, env->gpr[src]);
52 }
53 }
54 #endif
55
56 void glue(do_lmw_le, MEMSUFFIX) (int dst)
57 {
58 for (; dst < 32; dst++, T0 += 4) {
59 env->gpr[dst] = glue(ldu32r, MEMSUFFIX)((uint32_t)T0);
60 }
61 }
62
63 #if defined(TARGET_PPC64)
64 void glue(do_lmw_le_64, MEMSUFFIX) (int dst)
65 {
66 for (; dst < 32; dst++, T0 += 4) {
67 env->gpr[dst] = glue(ldu32r, MEMSUFFIX)((uint64_t)T0);
68 }
69 }
70 #endif
71
72 void glue(do_stmw_le, MEMSUFFIX) (int src)
73 {
74 for (; src < 32; src++, T0 += 4) {
75 glue(st32r, MEMSUFFIX)((uint32_t)T0, env->gpr[src]);
76 }
77 }
78
79 #if defined(TARGET_PPC64)
80 void glue(do_stmw_le_64, MEMSUFFIX) (int src)
81 {
82 for (; src < 32; src++, T0 += 4) {
83 glue(st32r, MEMSUFFIX)((uint64_t)T0, env->gpr[src]);
84 }
85 }
86 #endif
87
88 void glue(do_lsw, MEMSUFFIX) (int dst)
89 {
90 uint32_t tmp;
91 int sh;
92
93 for (; T1 > 3; T1 -= 4, T0 += 4) {
94 env->gpr[dst++] = glue(ldu32, MEMSUFFIX)((uint32_t)T0);
95 if (unlikely(dst == 32))
96 dst = 0;
97 }
98 if (unlikely(T1 != 0)) {
99 tmp = 0;
100 for (sh = 24; T1 > 0; T1--, T0++, sh -= 8) {
101 tmp |= glue(ldu8, MEMSUFFIX)((uint32_t)T0) << sh;
102 }
103 env->gpr[dst] = tmp;
104 }
105 }
106
107 #if defined(TARGET_PPC64)
108 void glue(do_lsw_64, MEMSUFFIX) (int dst)
109 {
110 uint32_t tmp;
111 int sh;
112
113 for (; T1 > 3; T1 -= 4, T0 += 4) {
114 env->gpr[dst++] = glue(ldu32, MEMSUFFIX)((uint64_t)T0);
115 if (unlikely(dst == 32))
116 dst = 0;
117 }
118 if (unlikely(T1 != 0)) {
119 tmp = 0;
120 for (sh = 24; T1 > 0; T1--, T0++, sh -= 8) {
121 tmp |= glue(ldu8, MEMSUFFIX)((uint64_t)T0) << sh;
122 }
123 env->gpr[dst] = tmp;
124 }
125 }
126 #endif
127
128 void glue(do_stsw, MEMSUFFIX) (int src)
129 {
130 int sh;
131
132 for (; T1 > 3; T1 -= 4, T0 += 4) {
133 glue(st32, MEMSUFFIX)((uint32_t)T0, env->gpr[src++]);
134 if (unlikely(src == 32))
135 src = 0;
136 }
137 if (unlikely(T1 != 0)) {
138 for (sh = 24; T1 > 0; T1--, T0++, sh -= 8)
139 glue(st8, MEMSUFFIX)((uint32_t)T0, (env->gpr[src] >> sh) & 0xFF);
140 }
141 }
142
143 #if defined(TARGET_PPC64)
144 void glue(do_stsw_64, MEMSUFFIX) (int src)
145 {
146 int sh;
147
148 for (; T1 > 3; T1 -= 4, T0 += 4) {
149 glue(st32, MEMSUFFIX)((uint64_t)T0, env->gpr[src++]);
150 if (unlikely(src == 32))
151 src = 0;
152 }
153 if (unlikely(T1 != 0)) {
154 for (sh = 24; T1 > 0; T1--, T0++, sh -= 8)
155 glue(st8, MEMSUFFIX)((uint64_t)T0, (env->gpr[src] >> sh) & 0xFF);
156 }
157 }
158 #endif
159
160 /* Instruction cache invalidation helper */
161 void glue(do_icbi, MEMSUFFIX) (void)
162 {
163 uint32_t tmp;
164 /* Invalidate one cache line :
165 * PowerPC specification says this is to be treated like a load
166 * (not a fetch) by the MMU. To be sure it will be so,
167 * do the load "by hand".
168 */
169 T0 &= ~(env->icache_line_size - 1);
170 tmp = glue(ldl, MEMSUFFIX)((uint32_t)T0);
171 tb_invalidate_page_range((uint32_t)T0,
172 (uint32_t)(T0 + env->icache_line_size));
173 }
174
175 #if defined(TARGET_PPC64)
176 void glue(do_icbi_64, MEMSUFFIX) (void)
177 {
178 uint64_t tmp;
179 /* Invalidate one cache line :
180 * PowerPC specification says this is to be treated like a load
181 * (not a fetch) by the MMU. To be sure it will be so,
182 * do the load "by hand".
183 */
184 T0 &= ~(env->icache_line_size - 1);
185 tmp = glue(ldq, MEMSUFFIX)((uint64_t)T0);
186 tb_invalidate_page_range((uint64_t)T0,
187 (uint64_t)(T0 + env->icache_line_size));
188 }
189 #endif
190
191 void glue(do_dcbz, MEMSUFFIX) (void)
192 {
193 int dcache_line_size = env->dcache_line_size;
194
195 /* XXX: should be 970 specific (?) */
196 if (((env->spr[SPR_970_HID5] >> 7) & 0x3) == 1)
197 dcache_line_size = 32;
198 T0 &= ~(uint32_t)(dcache_line_size - 1);
199 glue(stl, MEMSUFFIX)((uint32_t)(T0 + 0x00), 0);
200 glue(stl, MEMSUFFIX)((uint32_t)(T0 + 0x04), 0);
201 glue(stl, MEMSUFFIX)((uint32_t)(T0 + 0x08), 0);
202 glue(stl, MEMSUFFIX)((uint32_t)(T0 + 0x0C), 0);
203 glue(stl, MEMSUFFIX)((uint32_t)(T0 + 0x10), 0);
204 glue(stl, MEMSUFFIX)((uint32_t)(T0 + 0x14), 0);
205 glue(stl, MEMSUFFIX)((uint32_t)(T0 + 0x18), 0);
206 glue(stl, MEMSUFFIX)((uint32_t)(T0 + 0x1C), 0);
207 if (dcache_line_size >= 64) {
208 glue(stl, MEMSUFFIX)((uint32_t)(T0 + 0x20UL), 0);
209 glue(stl, MEMSUFFIX)((uint32_t)(T0 + 0x24UL), 0);
210 glue(stl, MEMSUFFIX)((uint32_t)(T0 + 0x28UL), 0);
211 glue(stl, MEMSUFFIX)((uint32_t)(T0 + 0x2CUL), 0);
212 glue(stl, MEMSUFFIX)((uint32_t)(T0 + 0x30UL), 0);
213 glue(stl, MEMSUFFIX)((uint32_t)(T0 + 0x34UL), 0);
214 glue(stl, MEMSUFFIX)((uint32_t)(T0 + 0x38UL), 0);
215 glue(stl, MEMSUFFIX)((uint32_t)(T0 + 0x3CUL), 0);
216 if (dcache_line_size >= 128) {
217 glue(stl, MEMSUFFIX)((uint32_t)(T0 + 0x40UL), 0);
218 glue(stl, MEMSUFFIX)((uint32_t)(T0 + 0x44UL), 0);
219 glue(stl, MEMSUFFIX)((uint32_t)(T0 + 0x48UL), 0);
220 glue(stl, MEMSUFFIX)((uint32_t)(T0 + 0x4CUL), 0);
221 glue(stl, MEMSUFFIX)((uint32_t)(T0 + 0x50UL), 0);
222 glue(stl, MEMSUFFIX)((uint32_t)(T0 + 0x54UL), 0);
223 glue(stl, MEMSUFFIX)((uint32_t)(T0 + 0x58UL), 0);
224 glue(stl, MEMSUFFIX)((uint32_t)(T0 + 0x5CUL), 0);
225 glue(stl, MEMSUFFIX)((uint32_t)(T0 + 0x60UL), 0);
226 glue(stl, MEMSUFFIX)((uint32_t)(T0 + 0x64UL), 0);
227 glue(stl, MEMSUFFIX)((uint32_t)(T0 + 0x68UL), 0);
228 glue(stl, MEMSUFFIX)((uint32_t)(T0 + 0x6CUL), 0);
229 glue(stl, MEMSUFFIX)((uint32_t)(T0 + 0x70UL), 0);
230 glue(stl, MEMSUFFIX)((uint32_t)(T0 + 0x74UL), 0);
231 glue(stl, MEMSUFFIX)((uint32_t)(T0 + 0x78UL), 0);
232 glue(stl, MEMSUFFIX)((uint32_t)(T0 + 0x7CUL), 0);
233 }
234 }
235 }
236
237 #if defined(TARGET_PPC64)
238 void glue(do_dcbz_64, MEMSUFFIX) (void)
239 {
240 int dcache_line_size = env->dcache_line_size;
241
242 /* XXX: should be 970 specific (?) */
243 if (((env->spr[SPR_970_HID5] >> 6) & 0x3) == 0x2)
244 dcache_line_size = 32;
245 T0 &= ~(uint64_t)(dcache_line_size - 1);
246 glue(stl, MEMSUFFIX)((uint64_t)(T0 + 0x00), 0);
247 glue(stl, MEMSUFFIX)((uint64_t)(T0 + 0x04), 0);
248 glue(stl, MEMSUFFIX)((uint64_t)(T0 + 0x08), 0);
249 glue(stl, MEMSUFFIX)((uint64_t)(T0 + 0x0C), 0);
250 glue(stl, MEMSUFFIX)((uint64_t)(T0 + 0x10), 0);
251 glue(stl, MEMSUFFIX)((uint64_t)(T0 + 0x14), 0);
252 glue(stl, MEMSUFFIX)((uint64_t)(T0 + 0x18), 0);
253 glue(stl, MEMSUFFIX)((uint64_t)(T0 + 0x1C), 0);
254 if (dcache_line_size >= 64) {
255 glue(stl, MEMSUFFIX)((uint64_t)(T0 + 0x20UL), 0);
256 glue(stl, MEMSUFFIX)((uint64_t)(T0 + 0x24UL), 0);
257 glue(stl, MEMSUFFIX)((uint64_t)(T0 + 0x28UL), 0);
258 glue(stl, MEMSUFFIX)((uint64_t)(T0 + 0x2CUL), 0);
259 glue(stl, MEMSUFFIX)((uint64_t)(T0 + 0x30UL), 0);
260 glue(stl, MEMSUFFIX)((uint64_t)(T0 + 0x34UL), 0);
261 glue(stl, MEMSUFFIX)((uint64_t)(T0 + 0x38UL), 0);
262 glue(stl, MEMSUFFIX)((uint64_t)(T0 + 0x3CUL), 0);
263 if (dcache_line_size >= 128) {
264 glue(stl, MEMSUFFIX)((uint64_t)(T0 + 0x40UL), 0);
265 glue(stl, MEMSUFFIX)((uint64_t)(T0 + 0x44UL), 0);
266 glue(stl, MEMSUFFIX)((uint64_t)(T0 + 0x48UL), 0);
267 glue(stl, MEMSUFFIX)((uint64_t)(T0 + 0x4CUL), 0);
268 glue(stl, MEMSUFFIX)((uint64_t)(T0 + 0x50UL), 0);
269 glue(stl, MEMSUFFIX)((uint64_t)(T0 + 0x54UL), 0);
270 glue(stl, MEMSUFFIX)((uint64_t)(T0 + 0x58UL), 0);
271 glue(stl, MEMSUFFIX)((uint64_t)(T0 + 0x5CUL), 0);
272 glue(stl, MEMSUFFIX)((uint64_t)(T0 + 0x60UL), 0);
273 glue(stl, MEMSUFFIX)((uint64_t)(T0 + 0x64UL), 0);
274 glue(stl, MEMSUFFIX)((uint64_t)(T0 + 0x68UL), 0);
275 glue(stl, MEMSUFFIX)((uint64_t)(T0 + 0x6CUL), 0);
276 glue(stl, MEMSUFFIX)((uint64_t)(T0 + 0x70UL), 0);
277 glue(stl, MEMSUFFIX)((uint64_t)(T0 + 0x74UL), 0);
278 glue(stl, MEMSUFFIX)((uint64_t)(T0 + 0x78UL), 0);
279 glue(stl, MEMSUFFIX)((uint64_t)(T0 + 0x7CUL), 0);
280 }
281 }
282 }
283 #endif
284
285 /* PowerPC 601 specific instructions (POWER bridge) */
286 // XXX: to be tested
287 void glue(do_POWER_lscbx, MEMSUFFIX) (int dest, int ra, int rb)
288 {
289 int i, c, d, reg;
290
291 d = 24;
292 reg = dest;
293 for (i = 0; i < T1; i++) {
294 c = glue(ldu8, MEMSUFFIX)((uint32_t)T0++);
295 /* ra (if not 0) and rb are never modified */
296 if (likely(reg != rb && (ra == 0 || reg != ra))) {
297 env->gpr[reg] = (env->gpr[reg] & ~(0xFF << d)) | (c << d);
298 }
299 if (unlikely(c == T2))
300 break;
301 if (likely(d != 0)) {
302 d -= 8;
303 } else {
304 d = 24;
305 reg++;
306 reg = reg & 0x1F;
307 }
308 }
309 T0 = i;
310 }
311
312 /* XXX: TAGs are not managed */
313 void glue(do_POWER2_lfq, MEMSUFFIX) (void)
314 {
315 FT0 = glue(ldfq, MEMSUFFIX)((uint32_t)T0);
316 FT1 = glue(ldfq, MEMSUFFIX)((uint32_t)(T0 + 4));
317 }
318
319 static always_inline float64 glue(ldfqr, MEMSUFFIX) (target_ulong EA)
320 {
321 CPU_DoubleU u;
322
323 u.d = glue(ldfq, MEMSUFFIX)(EA);
324 u.ll = bswap64(u.ll);
325
326 return u.d;
327 }
328
329 void glue(do_POWER2_lfq_le, MEMSUFFIX) (void)
330 {
331 FT0 = glue(ldfqr, MEMSUFFIX)((uint32_t)(T0 + 4));
332 FT1 = glue(ldfqr, MEMSUFFIX)((uint32_t)T0);
333 }
334
335 void glue(do_POWER2_stfq, MEMSUFFIX) (void)
336 {
337 glue(stfq, MEMSUFFIX)((uint32_t)T0, FT0);
338 glue(stfq, MEMSUFFIX)((uint32_t)(T0 + 4), FT1);
339 }
340
341 static always_inline void glue(stfqr, MEMSUFFIX) (target_ulong EA, float64 d)
342 {
343 CPU_DoubleU u;
344
345 u.d = d;
346 u.ll = bswap64(u.ll);
347 glue(stfq, MEMSUFFIX)(EA, u.d);
348 }
349
350 void glue(do_POWER2_stfq_le, MEMSUFFIX) (void)
351 {
352 glue(stfqr, MEMSUFFIX)((uint32_t)(T0 + 4), FT0);
353 glue(stfqr, MEMSUFFIX)((uint32_t)T0, FT1);
354 }
355
356 #undef MEMSUFFIX
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