Revision 67e42751 hw/slavio_timer.c
| b/hw/slavio_timer.c | ||
|---|---|---|
| 199 | 199 |
count = ((uint64_t)s->counthigh << 32) | s->count; |
| 200 | 200 |
DPRINTF("processor %d user timer set to %016llx\n", s->slave_index,
|
| 201 | 201 |
count); |
| 202 |
if (s->timer) {
|
|
| 202 |
if (s->timer) |
|
| 203 | 203 |
ptimer_set_count(s->timer, LIMIT_TO_PERIODS(s->limit - count)); |
| 204 |
ptimer_set_limit(s->timer, LIMIT_TO_PERIODS(s->limit), 0); |
|
| 205 |
} |
|
| 206 | 204 |
} else {
|
| 207 | 205 |
// set limit, reset counter |
| 208 | 206 |
qemu_irq_lower(s->irq); |
| ... | ... | |
| 227 | 225 |
count = ((uint64_t)s->counthigh) << 32 | s->count; |
| 228 | 226 |
DPRINTF("processor %d user timer set to %016llx\n", s->slave_index,
|
| 229 | 227 |
count); |
| 230 |
if (s->timer) {
|
|
| 228 |
if (s->timer) |
|
| 231 | 229 |
ptimer_set_count(s->timer, LIMIT_TO_PERIODS(s->limit - count)); |
| 232 |
ptimer_set_limit(s->timer, LIMIT_TO_PERIODS(s->limit), 0); |
|
| 233 |
} |
|
| 234 | 230 |
} else |
| 235 | 231 |
DPRINTF("not user timer\n");
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| 236 | 232 |
break; |
| ... | ... | |
| 265 | 261 |
unsigned int i; |
| 266 | 262 |
|
| 267 | 263 |
for (i = 0; i < s->num_slaves; i++) {
|
| 268 |
if (val & (1 << i)) {
|
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| 269 |
qemu_irq_lower(s->slave[i]->irq); |
|
| 270 |
s->slave[i]->limit = -1ULL; |
|
| 271 |
} else {
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| 272 |
ptimer_stop(s->slave[i]->timer); |
|
| 273 |
} |
|
| 274 |
if ((val & (1 << i)) != (s->slave_mode & (1 << i))) {
|
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ptimer_stop(s->slave[i]->timer); |
|
| 276 |
ptimer_set_limit(s->slave[i]->timer, |
|
| 277 |
LIMIT_TO_PERIODS(s->slave[i]->limit), 1); |
|
| 278 |
DPRINTF("processor %d timer changed\n",
|
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| 279 |
s->slave[i]->slave_index); |
|
| 280 |
ptimer_run(s->slave[i]->timer, 0); |
|
| 264 |
unsigned int processor = 1 << i; |
|
| 265 |
|
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| 266 |
// check for a change in timer mode for this processor |
|
| 267 |
if ((val & processor) != (s->slave_mode & processor)) {
|
|
| 268 |
if (val & processor) { // counter -> user timer
|
|
| 269 |
qemu_irq_lower(s->slave[i]->irq); |
|
| 270 |
// counters are always running |
|
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ptimer_stop(s->slave[i]->timer); |
|
| 272 |
s->slave[i]->running = 0; |
|
| 273 |
// user timer limit is always the same |
|
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s->slave[i]->limit = TIMER_MAX_COUNT64; |
|
| 275 |
ptimer_set_limit(s->slave[i]->timer, |
|
| 276 |
LIMIT_TO_PERIODS(s->slave[i]->limit), 1); |
|
| 277 |
// set this processors user timer bit in config |
|
| 278 |
// register |
|
| 279 |
s->slave_mode |= processor; |
|
| 280 |
DPRINTF("processor %d changed from counter to user "
|
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"timer\n", s->slave[i]->slave_index); |
|
| 282 |
} else { // user timer -> counter
|
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| 283 |
// stop the user timer if it is running |
|
| 284 |
if (s->slave[i]->running) |
|
| 285 |
ptimer_stop(s->slave[i]->timer); |
|
| 286 |
// start the counter |
|
| 287 |
ptimer_run(s->slave[i]->timer, 0); |
|
| 288 |
s->slave[i]->running = 1; |
|
| 289 |
// clear this processors user timer bit in config |
|
| 290 |
// register |
|
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s->slave_mode &= ~processor; |
|
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DPRINTF("processor %d changed from user timer to "
|
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"counter\n", s->slave[i]->slave_index); |
|
| 294 |
} |
|
| 281 | 295 |
} |
| 282 | 296 |
} |
| 283 |
s->slave_mode = val & ((1 << s->num_slaves) - 1); |
|
| 284 | 297 |
} else |
| 285 | 298 |
DPRINTF("not system timer\n");
|
| 286 | 299 |
break; |
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