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d2fd9612 CLG |
1 | /* |
2 | * QEMU PowerPC PowerNV CPU Core model | |
3 | * | |
4 | * Copyright (c) 2016, IBM Corporation. | |
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 License | |
8 | * as published by the Free Software Foundation; either version 2 of | |
9 | * the License, or (at your option) any later version. | |
10 | * | |
11 | * This library is distributed in the hope that it will be useful, but | |
12 | * 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, see <http://www.gnu.org/licenses/>. | |
18 | */ | |
0b8fa32f | 19 | |
d2fd9612 | 20 | #include "qemu/osdep.h" |
71e8a915 | 21 | #include "sysemu/reset.h" |
d2fd9612 | 22 | #include "qapi/error.h" |
24ece072 | 23 | #include "qemu/log.h" |
0b8fa32f | 24 | #include "qemu/module.h" |
fcf5ef2a | 25 | #include "target/ppc/cpu.h" |
d2fd9612 CLG |
26 | #include "hw/ppc/ppc.h" |
27 | #include "hw/ppc/pnv.h" | |
28 | #include "hw/ppc/pnv_core.h" | |
ec575aa0 | 29 | #include "hw/ppc/pnv_xscom.h" |
960fbd29 | 30 | #include "hw/ppc/xics.h" |
a27bd6c7 | 31 | #include "hw/qdev-properties.h" |
d2fd9612 | 32 | |
35bdb9de IM |
33 | static const char *pnv_core_cpu_typename(PnvCore *pc) |
34 | { | |
35 | const char *core_type = object_class_get_name(object_get_class(OBJECT(pc))); | |
36 | int len = strlen(core_type) - strlen(PNV_CORE_TYPE_SUFFIX); | |
37 | char *s = g_strdup_printf(POWERPC_CPU_TYPE_NAME("%.*s"), len, core_type); | |
38 | const char *cpu_type = object_class_get_name(object_class_by_name(s)); | |
39 | g_free(s); | |
40 | return cpu_type; | |
41 | } | |
42 | ||
d49e8a9b | 43 | static void pnv_core_cpu_reset(PowerPCCPU *cpu, PnvChip *chip) |
d2fd9612 | 44 | { |
d2fd9612 CLG |
45 | CPUState *cs = CPU(cpu); |
46 | CPUPPCState *env = &cpu->env; | |
d49e8a9b | 47 | PnvChipClass *pcc = PNV_CHIP_GET_CLASS(chip); |
d2fd9612 CLG |
48 | |
49 | cpu_reset(cs); | |
50 | ||
51 | /* | |
52 | * the skiboot firmware elects a primary thread to initialize the | |
53 | * system and it can be any. | |
54 | */ | |
55 | env->gpr[3] = PNV_FDT_ADDR; | |
56 | env->nip = 0x10; | |
57 | env->msr |= MSR_HVB; /* Hypervisor mode */ | |
d49e8a9b CLG |
58 | |
59 | pcc->intc_reset(chip, cpu); | |
d2fd9612 CLG |
60 | } |
61 | ||
24ece072 CLG |
62 | /* |
63 | * These values are read by the PowerNV HW monitors under Linux | |
64 | */ | |
65 | #define PNV_XSCOM_EX_DTS_RESULT0 0x50000 | |
66 | #define PNV_XSCOM_EX_DTS_RESULT1 0x50001 | |
67 | ||
90ef386c CLG |
68 | static uint64_t pnv_core_power8_xscom_read(void *opaque, hwaddr addr, |
69 | unsigned int width) | |
24ece072 CLG |
70 | { |
71 | uint32_t offset = addr >> 3; | |
72 | uint64_t val = 0; | |
73 | ||
74 | /* The result should be 38 C */ | |
75 | switch (offset) { | |
76 | case PNV_XSCOM_EX_DTS_RESULT0: | |
77 | val = 0x26f024f023f0000ull; | |
78 | break; | |
79 | case PNV_XSCOM_EX_DTS_RESULT1: | |
80 | val = 0x24f000000000000ull; | |
81 | break; | |
82 | default: | |
c7e71a18 | 83 | qemu_log_mask(LOG_UNIMP, "Warning: reading reg=0x%" HWADDR_PRIx "\n", |
24ece072 CLG |
84 | addr); |
85 | } | |
86 | ||
87 | return val; | |
88 | } | |
89 | ||
90ef386c CLG |
90 | static void pnv_core_power8_xscom_write(void *opaque, hwaddr addr, uint64_t val, |
91 | unsigned int width) | |
24ece072 | 92 | { |
c7e71a18 | 93 | qemu_log_mask(LOG_UNIMP, "Warning: writing to reg=0x%" HWADDR_PRIx "\n", |
24ece072 CLG |
94 | addr); |
95 | } | |
96 | ||
90ef386c CLG |
97 | static const MemoryRegionOps pnv_core_power8_xscom_ops = { |
98 | .read = pnv_core_power8_xscom_read, | |
99 | .write = pnv_core_power8_xscom_write, | |
100 | .valid.min_access_size = 8, | |
101 | .valid.max_access_size = 8, | |
102 | .impl.min_access_size = 8, | |
103 | .impl.max_access_size = 8, | |
104 | .endianness = DEVICE_BIG_ENDIAN, | |
105 | }; | |
106 | ||
107 | ||
108 | /* | |
109 | * POWER9 core controls | |
110 | */ | |
111 | #define PNV9_XSCOM_EC_PPM_SPECIAL_WKUP_HYP 0xf010d | |
112 | #define PNV9_XSCOM_EC_PPM_SPECIAL_WKUP_OTR 0xf010a | |
113 | ||
114 | static uint64_t pnv_core_power9_xscom_read(void *opaque, hwaddr addr, | |
115 | unsigned int width) | |
116 | { | |
117 | uint32_t offset = addr >> 3; | |
118 | uint64_t val = 0; | |
119 | ||
120 | /* The result should be 38 C */ | |
121 | switch (offset) { | |
122 | case PNV_XSCOM_EX_DTS_RESULT0: | |
123 | val = 0x26f024f023f0000ull; | |
124 | break; | |
125 | case PNV_XSCOM_EX_DTS_RESULT1: | |
126 | val = 0x24f000000000000ull; | |
127 | break; | |
128 | case PNV9_XSCOM_EC_PPM_SPECIAL_WKUP_HYP: | |
129 | case PNV9_XSCOM_EC_PPM_SPECIAL_WKUP_OTR: | |
130 | val = 0x0; | |
131 | break; | |
132 | default: | |
133 | qemu_log_mask(LOG_UNIMP, "Warning: reading reg=0x%" HWADDR_PRIx "\n", | |
134 | addr); | |
135 | } | |
136 | ||
137 | return val; | |
138 | } | |
139 | ||
140 | static void pnv_core_power9_xscom_write(void *opaque, hwaddr addr, uint64_t val, | |
141 | unsigned int width) | |
142 | { | |
143 | uint32_t offset = addr >> 3; | |
144 | ||
145 | switch (offset) { | |
146 | case PNV9_XSCOM_EC_PPM_SPECIAL_WKUP_HYP: | |
147 | case PNV9_XSCOM_EC_PPM_SPECIAL_WKUP_OTR: | |
148 | break; | |
149 | default: | |
150 | qemu_log_mask(LOG_UNIMP, "Warning: writing to reg=0x%" HWADDR_PRIx "\n", | |
151 | addr); | |
152 | } | |
153 | } | |
154 | ||
155 | static const MemoryRegionOps pnv_core_power9_xscom_ops = { | |
156 | .read = pnv_core_power9_xscom_read, | |
157 | .write = pnv_core_power9_xscom_write, | |
24ece072 CLG |
158 | .valid.min_access_size = 8, |
159 | .valid.max_access_size = 8, | |
160 | .impl.min_access_size = 8, | |
161 | .impl.max_access_size = 8, | |
162 | .endianness = DEVICE_BIG_ENDIAN, | |
163 | }; | |
164 | ||
00d6f4db | 165 | static void pnv_core_cpu_realize(PowerPCCPU *cpu, PnvChip *chip, Error **errp) |
d2fd9612 | 166 | { |
3a247521 DG |
167 | CPUPPCState *env = &cpu->env; |
168 | int core_pir; | |
169 | int thread_index = 0; /* TODO: TCG supports only one thread */ | |
170 | ppc_spr_t *pir = &env->spr_cb[SPR_PIR]; | |
d2fd9612 | 171 | Error *local_err = NULL; |
d35aefa9 | 172 | PnvChipClass *pcc = PNV_CHIP_GET_CLASS(chip); |
960fbd29 | 173 | |
3a247521 | 174 | object_property_set_bool(OBJECT(cpu), true, "realized", &local_err); |
960fbd29 CLG |
175 | if (local_err) { |
176 | error_propagate(errp, local_err); | |
177 | return; | |
178 | } | |
d2fd9612 | 179 | |
8fa1f4ef | 180 | pcc->intc_create(chip, cpu, &local_err); |
d2fd9612 CLG |
181 | if (local_err) { |
182 | error_propagate(errp, local_err); | |
183 | return; | |
184 | } | |
185 | ||
3a247521 DG |
186 | core_pir = object_property_get_uint(OBJECT(cpu), "core-pir", &error_abort); |
187 | ||
188 | /* | |
189 | * The PIR of a thread is the core PIR + the thread index. We will | |
190 | * need to find a way to get the thread index when TCG supports | |
191 | * more than 1. We could use the object name ? | |
192 | */ | |
193 | pir->default_value = core_pir + thread_index; | |
194 | ||
195 | /* Set time-base frequency to 512 MHz */ | |
196 | cpu_ppc_tb_init(env, PNV_TIMEBASE_FREQ); | |
fa06541b CLG |
197 | } |
198 | ||
199 | static void pnv_core_reset(void *dev) | |
200 | { | |
201 | CPUCore *cc = CPU_CORE(dev); | |
202 | PnvCore *pc = PNV_CORE(dev); | |
203 | int i; | |
3a247521 | 204 | |
fa06541b | 205 | for (i = 0; i < cc->nr_threads; i++) { |
d49e8a9b | 206 | pnv_core_cpu_reset(pc->threads[i], pc->chip); |
fa06541b | 207 | } |
d2fd9612 CLG |
208 | } |
209 | ||
210 | static void pnv_core_realize(DeviceState *dev, Error **errp) | |
211 | { | |
212 | PnvCore *pc = PNV_CORE(OBJECT(dev)); | |
90ef386c | 213 | PnvCoreClass *pcc = PNV_CORE_GET_CLASS(pc); |
d2fd9612 | 214 | CPUCore *cc = CPU_CORE(OBJECT(dev)); |
35bdb9de | 215 | const char *typename = pnv_core_cpu_typename(pc); |
d2fd9612 CLG |
216 | Error *local_err = NULL; |
217 | void *obj; | |
218 | int i, j; | |
219 | char name[32]; | |
960fbd29 | 220 | |
158e17a6 | 221 | assert(pc->chip); |
d2fd9612 | 222 | |
08304a86 | 223 | pc->threads = g_new(PowerPCCPU *, cc->nr_threads); |
d2fd9612 | 224 | for (i = 0; i < cc->nr_threads; i++) { |
8907fc25 CLG |
225 | PowerPCCPU *cpu; |
226 | ||
08304a86 | 227 | obj = object_new(typename); |
8907fc25 | 228 | cpu = POWERPC_CPU(obj); |
d2fd9612 | 229 | |
08304a86 | 230 | pc->threads[i] = POWERPC_CPU(obj); |
d2fd9612 CLG |
231 | |
232 | snprintf(name, sizeof(name), "thread[%d]", i); | |
937c2146 | 233 | object_property_add_child(OBJECT(pc), name, obj, &error_abort); |
d2fd9612 | 234 | object_property_add_alias(obj, "core-pir", OBJECT(pc), |
937c2146 | 235 | "pir", &error_abort); |
8907fc25 CLG |
236 | |
237 | cpu->machine_data = g_new0(PnvCPUState, 1); | |
238 | ||
d2fd9612 CLG |
239 | object_unref(obj); |
240 | } | |
241 | ||
242 | for (j = 0; j < cc->nr_threads; j++) { | |
00d6f4db | 243 | pnv_core_cpu_realize(pc->threads[j], pc->chip, &local_err); |
d2fd9612 CLG |
244 | if (local_err) { |
245 | goto err; | |
246 | } | |
247 | } | |
24ece072 CLG |
248 | |
249 | snprintf(name, sizeof(name), "xscom-core.%d", cc->core_id); | |
2b548a42 | 250 | /* TODO: check PNV_XSCOM_EX_SIZE for p10 */ |
90ef386c | 251 | pnv_xscom_region_init(&pc->xscom_regs, OBJECT(dev), pcc->xscom_ops, |
c035851a | 252 | pc, name, PNV_XSCOM_EX_SIZE); |
fa06541b CLG |
253 | |
254 | qemu_register_reset(pnv_core_reset, pc); | |
d2fd9612 CLG |
255 | return; |
256 | ||
257 | err: | |
258 | while (--i >= 0) { | |
08304a86 | 259 | obj = OBJECT(pc->threads[i]); |
d2fd9612 CLG |
260 | object_unparent(obj); |
261 | } | |
262 | g_free(pc->threads); | |
263 | error_propagate(errp, local_err); | |
264 | } | |
265 | ||
0990ce6a | 266 | static void pnv_core_cpu_unrealize(PowerPCCPU *cpu, PnvChip *chip) |
5e22e292 | 267 | { |
8907fc25 | 268 | PnvCPUState *pnv_cpu = pnv_cpu_state(cpu); |
0990ce6a | 269 | PnvChipClass *pcc = PNV_CHIP_GET_CLASS(chip); |
8907fc25 | 270 | |
0990ce6a | 271 | pcc->intc_destroy(chip, cpu); |
5e22e292 | 272 | cpu_remove_sync(CPU(cpu)); |
8907fc25 CLG |
273 | cpu->machine_data = NULL; |
274 | g_free(pnv_cpu); | |
5e22e292 DG |
275 | object_unparent(OBJECT(cpu)); |
276 | } | |
277 | ||
278 | static void pnv_core_unrealize(DeviceState *dev, Error **errp) | |
279 | { | |
280 | PnvCore *pc = PNV_CORE(dev); | |
281 | CPUCore *cc = CPU_CORE(dev); | |
282 | int i; | |
283 | ||
fa06541b CLG |
284 | qemu_unregister_reset(pnv_core_reset, pc); |
285 | ||
5e22e292 | 286 | for (i = 0; i < cc->nr_threads; i++) { |
0990ce6a | 287 | pnv_core_cpu_unrealize(pc->threads[i], pc->chip); |
5e22e292 DG |
288 | } |
289 | g_free(pc->threads); | |
290 | } | |
291 | ||
d2fd9612 CLG |
292 | static Property pnv_core_properties[] = { |
293 | DEFINE_PROP_UINT32("pir", PnvCore, pir, 0), | |
158e17a6 | 294 | DEFINE_PROP_LINK("chip", PnvCore, chip, TYPE_PNV_CHIP, PnvChip *), |
d2fd9612 CLG |
295 | DEFINE_PROP_END_OF_LIST(), |
296 | }; | |
297 | ||
90ef386c CLG |
298 | static void pnv_core_power8_class_init(ObjectClass *oc, void *data) |
299 | { | |
300 | PnvCoreClass *pcc = PNV_CORE_CLASS(oc); | |
301 | ||
302 | pcc->xscom_ops = &pnv_core_power8_xscom_ops; | |
303 | } | |
304 | ||
305 | static void pnv_core_power9_class_init(ObjectClass *oc, void *data) | |
306 | { | |
307 | PnvCoreClass *pcc = PNV_CORE_CLASS(oc); | |
308 | ||
309 | pcc->xscom_ops = &pnv_core_power9_xscom_ops; | |
310 | } | |
311 | ||
2b548a42 CLG |
312 | static void pnv_core_power10_class_init(ObjectClass *oc, void *data) |
313 | { | |
314 | PnvCoreClass *pcc = PNV_CORE_CLASS(oc); | |
315 | ||
316 | /* TODO: Use the P9 XSCOMs for now on P10 */ | |
317 | pcc->xscom_ops = &pnv_core_power9_xscom_ops; | |
318 | } | |
319 | ||
d2fd9612 CLG |
320 | static void pnv_core_class_init(ObjectClass *oc, void *data) |
321 | { | |
322 | DeviceClass *dc = DEVICE_CLASS(oc); | |
d2fd9612 CLG |
323 | |
324 | dc->realize = pnv_core_realize; | |
5e22e292 | 325 | dc->unrealize = pnv_core_unrealize; |
d2fd9612 | 326 | dc->props = pnv_core_properties; |
d2fd9612 CLG |
327 | } |
328 | ||
90ef386c | 329 | #define DEFINE_PNV_CORE_TYPE(family, cpu_model) \ |
7383af1e IM |
330 | { \ |
331 | .parent = TYPE_PNV_CORE, \ | |
332 | .name = PNV_CORE_TYPE_NAME(cpu_model), \ | |
90ef386c | 333 | .class_init = pnv_core_##family##_class_init, \ |
d2fd9612 | 334 | } |
d2fd9612 | 335 | |
7383af1e IM |
336 | static const TypeInfo pnv_core_infos[] = { |
337 | { | |
338 | .name = TYPE_PNV_CORE, | |
339 | .parent = TYPE_CPU_CORE, | |
340 | .instance_size = sizeof(PnvCore), | |
341 | .class_size = sizeof(PnvCoreClass), | |
342 | .class_init = pnv_core_class_init, | |
343 | .abstract = true, | |
344 | }, | |
90ef386c CLG |
345 | DEFINE_PNV_CORE_TYPE(power8, "power8e_v2.1"), |
346 | DEFINE_PNV_CORE_TYPE(power8, "power8_v2.0"), | |
347 | DEFINE_PNV_CORE_TYPE(power8, "power8nvl_v1.0"), | |
348 | DEFINE_PNV_CORE_TYPE(power9, "power9_v2.0"), | |
2b548a42 | 349 | DEFINE_PNV_CORE_TYPE(power10, "power10_v1.0"), |
7383af1e | 350 | }; |
d2fd9612 | 351 | |
7383af1e | 352 | DEFINE_TYPES(pnv_core_infos) |
5dad902c CLG |
353 | |
354 | /* | |
355 | * POWER9 Quads | |
356 | */ | |
357 | ||
358 | #define P9X_EX_NCU_SPEC_BAR 0x11010 | |
359 | ||
360 | static uint64_t pnv_quad_xscom_read(void *opaque, hwaddr addr, | |
361 | unsigned int width) | |
362 | { | |
363 | uint32_t offset = addr >> 3; | |
364 | uint64_t val = -1; | |
365 | ||
366 | switch (offset) { | |
367 | case P9X_EX_NCU_SPEC_BAR: | |
368 | case P9X_EX_NCU_SPEC_BAR + 0x400: /* Second EX */ | |
369 | val = 0; | |
370 | break; | |
371 | default: | |
372 | qemu_log_mask(LOG_UNIMP, "%s: writing @0x%08x\n", __func__, | |
373 | offset); | |
374 | } | |
375 | ||
376 | return val; | |
377 | } | |
378 | ||
379 | static void pnv_quad_xscom_write(void *opaque, hwaddr addr, uint64_t val, | |
380 | unsigned int width) | |
381 | { | |
382 | uint32_t offset = addr >> 3; | |
383 | ||
384 | switch (offset) { | |
385 | case P9X_EX_NCU_SPEC_BAR: | |
386 | case P9X_EX_NCU_SPEC_BAR + 0x400: /* Second EX */ | |
387 | break; | |
388 | default: | |
389 | qemu_log_mask(LOG_UNIMP, "%s: writing @0x%08x\n", __func__, | |
390 | offset); | |
391 | } | |
392 | } | |
393 | ||
394 | static const MemoryRegionOps pnv_quad_xscom_ops = { | |
395 | .read = pnv_quad_xscom_read, | |
396 | .write = pnv_quad_xscom_write, | |
397 | .valid.min_access_size = 8, | |
398 | .valid.max_access_size = 8, | |
399 | .impl.min_access_size = 8, | |
400 | .impl.max_access_size = 8, | |
401 | .endianness = DEVICE_BIG_ENDIAN, | |
402 | }; | |
403 | ||
404 | static void pnv_quad_realize(DeviceState *dev, Error **errp) | |
405 | { | |
406 | PnvQuad *eq = PNV_QUAD(dev); | |
407 | char name[32]; | |
408 | ||
409 | snprintf(name, sizeof(name), "xscom-quad.%d", eq->id); | |
410 | pnv_xscom_region_init(&eq->xscom_regs, OBJECT(dev), &pnv_quad_xscom_ops, | |
411 | eq, name, PNV9_XSCOM_EQ_SIZE); | |
412 | } | |
413 | ||
414 | static Property pnv_quad_properties[] = { | |
415 | DEFINE_PROP_UINT32("id", PnvQuad, id, 0), | |
416 | DEFINE_PROP_END_OF_LIST(), | |
417 | }; | |
418 | ||
419 | static void pnv_quad_class_init(ObjectClass *oc, void *data) | |
420 | { | |
421 | DeviceClass *dc = DEVICE_CLASS(oc); | |
422 | ||
423 | dc->realize = pnv_quad_realize; | |
424 | dc->props = pnv_quad_properties; | |
425 | } | |
426 | ||
427 | static const TypeInfo pnv_quad_info = { | |
428 | .name = TYPE_PNV_QUAD, | |
429 | .parent = TYPE_DEVICE, | |
430 | .instance_size = sizeof(PnvQuad), | |
431 | .class_init = pnv_quad_class_init, | |
432 | }; | |
433 | ||
434 | static void pnv_core_register_types(void) | |
435 | { | |
436 | type_register_static(&pnv_quad_info); | |
437 | } | |
438 | ||
439 | type_init(pnv_core_register_types) |