]>
Commit | Line | Data |
---|---|---|
4040ab72 DG |
1 | /* |
2 | * QEMU sPAPR VIO code | |
3 | * | |
4 | * Copyright (c) 2010 David Gibson, IBM Corporation <dwg@au1.ibm.com> | |
5 | * Based on the s390 virtio bus code: | |
6 | * Copyright (c) 2009 Alexander Graf <agraf@suse.de> | |
7 | * | |
8 | * This library is free software; you can redistribute it and/or | |
9 | * modify it under the terms of the GNU Lesser General Public | |
10 | * License as published by the Free Software Foundation; either | |
11 | * version 2 of the License, or (at your option) any later version. | |
12 | * | |
13 | * This library is distributed in the hope that it will be useful, | |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
16 | * Lesser General Public License for more details. | |
17 | * | |
18 | * You should have received a copy of the GNU Lesser General Public | |
19 | * License along with this library; if not, see <http://www.gnu.org/licenses/>. | |
20 | */ | |
21 | ||
0d75590d | 22 | #include "qemu/osdep.h" |
da34e65c | 23 | #include "qapi/error.h" |
83c9f4ca | 24 | #include "hw/hw.h" |
03dd024f | 25 | #include "qemu/log.h" |
9c17d615 | 26 | #include "sysemu/sysemu.h" |
83c9f4ca | 27 | #include "hw/boards.h" |
83c9f4ca | 28 | #include "hw/loader.h" |
4040ab72 DG |
29 | #include "elf.h" |
30 | #include "hw/sysbus.h" | |
9c17d615 PB |
31 | #include "sysemu/kvm.h" |
32 | #include "sysemu/device_tree.h" | |
b45d63b6 | 33 | #include "kvm_ppc.h" |
4040ab72 | 34 | |
0d09e41a PB |
35 | #include "hw/ppc/spapr.h" |
36 | #include "hw/ppc/spapr_vio.h" | |
37 | #include "hw/ppc/xics.h" | |
4040ab72 | 38 | |
4040ab72 | 39 | #include <libfdt.h> |
4040ab72 DG |
40 | |
41 | /* #define DEBUG_SPAPR */ | |
42 | ||
43 | #ifdef DEBUG_SPAPR | |
f6bda9cb | 44 | #define DPRINTF(fmt, ...) \ |
4040ab72 DG |
45 | do { fprintf(stderr, fmt, ## __VA_ARGS__); } while (0) |
46 | #else | |
f6bda9cb | 47 | #define DPRINTF(fmt, ...) \ |
4040ab72 DG |
48 | do { } while (0) |
49 | #endif | |
50 | ||
3cb75a7c | 51 | static Property spapr_vio_props[] = { |
a307d594 | 52 | DEFINE_PROP_UINT32("irq", VIOsPAPRDevice, irq, 0), \ |
3cb75a7c PB |
53 | DEFINE_PROP_END_OF_LIST(), |
54 | }; | |
55 | ||
c4eda5b7 DG |
56 | static char *spapr_vio_get_dev_name(DeviceState *qdev) |
57 | { | |
58 | VIOsPAPRDevice *dev = VIO_SPAPR_DEVICE(qdev); | |
59 | VIOsPAPRDeviceClass *pc = VIO_SPAPR_DEVICE_GET_CLASS(dev); | |
60 | char *name; | |
61 | ||
62 | /* Device tree style name device@reg */ | |
63 | name = g_strdup_printf("%s@%x", pc->dt_name, dev->reg); | |
64 | ||
65 | return name; | |
66 | } | |
67 | ||
68 | static void spapr_vio_bus_class_init(ObjectClass *klass, void *data) | |
69 | { | |
70 | BusClass *k = BUS_CLASS(klass); | |
71 | ||
72 | k->get_dev_path = spapr_vio_get_dev_name; | |
5a06393f | 73 | k->get_fw_dev_path = spapr_vio_get_dev_name; |
c4eda5b7 DG |
74 | } |
75 | ||
0d936928 AL |
76 | static const TypeInfo spapr_vio_bus_info = { |
77 | .name = TYPE_SPAPR_VIO_BUS, | |
78 | .parent = TYPE_BUS, | |
c4eda5b7 | 79 | .class_init = spapr_vio_bus_class_init, |
0d936928 | 80 | .instance_size = sizeof(VIOsPAPRBus), |
4040ab72 DG |
81 | }; |
82 | ||
83 | VIOsPAPRDevice *spapr_vio_find_by_reg(VIOsPAPRBus *bus, uint32_t reg) | |
84 | { | |
0866aca1 | 85 | BusChild *kid; |
4040ab72 DG |
86 | VIOsPAPRDevice *dev = NULL; |
87 | ||
0866aca1 AL |
88 | QTAILQ_FOREACH(kid, &bus->bus.children, sibling) { |
89 | dev = (VIOsPAPRDevice *)kid->child; | |
4040ab72 | 90 | if (dev->reg == reg) { |
5435352c | 91 | return dev; |
4040ab72 DG |
92 | } |
93 | } | |
94 | ||
5435352c | 95 | return NULL; |
4040ab72 DG |
96 | } |
97 | ||
4040ab72 DG |
98 | static int vio_make_devnode(VIOsPAPRDevice *dev, |
99 | void *fdt) | |
100 | { | |
3954d33a | 101 | VIOsPAPRDeviceClass *pc = VIO_SPAPR_DEVICE_GET_CLASS(dev); |
1e34d859 ME |
102 | int vdevice_off, node_off, ret; |
103 | char *dt_name; | |
4040ab72 DG |
104 | |
105 | vdevice_off = fdt_path_offset(fdt, "/vdevice"); | |
106 | if (vdevice_off < 0) { | |
107 | return vdevice_off; | |
108 | } | |
109 | ||
c4eda5b7 | 110 | dt_name = spapr_vio_get_dev_name(DEVICE(dev)); |
1e34d859 | 111 | node_off = fdt_add_subnode(fdt, vdevice_off, dt_name); |
4ecf8aa5 | 112 | g_free(dt_name); |
4040ab72 DG |
113 | if (node_off < 0) { |
114 | return node_off; | |
115 | } | |
116 | ||
117 | ret = fdt_setprop_cell(fdt, node_off, "reg", dev->reg); | |
118 | if (ret < 0) { | |
119 | return ret; | |
120 | } | |
121 | ||
3954d33a | 122 | if (pc->dt_type) { |
4040ab72 | 123 | ret = fdt_setprop_string(fdt, node_off, "device_type", |
3954d33a | 124 | pc->dt_type); |
4040ab72 DG |
125 | if (ret < 0) { |
126 | return ret; | |
127 | } | |
128 | } | |
129 | ||
3954d33a | 130 | if (pc->dt_compatible) { |
4040ab72 | 131 | ret = fdt_setprop_string(fdt, node_off, "compatible", |
3954d33a | 132 | pc->dt_compatible); |
4040ab72 DG |
133 | if (ret < 0) { |
134 | return ret; | |
135 | } | |
136 | } | |
137 | ||
a307d594 AK |
138 | if (dev->irq) { |
139 | uint32_t ints_prop[] = {cpu_to_be32(dev->irq), 0}; | |
00dc738d DG |
140 | |
141 | ret = fdt_setprop(fdt, node_off, "interrupts", ints_prop, | |
142 | sizeof(ints_prop)); | |
143 | if (ret < 0) { | |
144 | return ret; | |
145 | } | |
146 | } | |
147 | ||
2b7dc949 | 148 | ret = spapr_tcet_dma_dt(fdt, node_off, "ibm,my-dma-window", dev->tcet); |
ad0ebb91 DG |
149 | if (ret < 0) { |
150 | return ret; | |
ee86dfee DG |
151 | } |
152 | ||
3954d33a AL |
153 | if (pc->devnode) { |
154 | ret = (pc->devnode)(dev, fdt, node_off); | |
4040ab72 DG |
155 | if (ret < 0) { |
156 | return ret; | |
157 | } | |
158 | } | |
159 | ||
160 | return node_off; | |
161 | } | |
4040ab72 | 162 | |
b45d63b6 BH |
163 | /* |
164 | * CRQ handling | |
165 | */ | |
28e02042 | 166 | static target_ulong h_reg_crq(PowerPCCPU *cpu, sPAPRMachineState *spapr, |
b45d63b6 BH |
167 | target_ulong opcode, target_ulong *args) |
168 | { | |
169 | target_ulong reg = args[0]; | |
170 | target_ulong queue_addr = args[1]; | |
171 | target_ulong queue_len = args[2]; | |
172 | VIOsPAPRDevice *dev = spapr_vio_find_by_reg(spapr->vio_bus, reg); | |
173 | ||
174 | if (!dev) { | |
d9599c92 | 175 | hcall_dprintf("Unit 0x" TARGET_FMT_lx " does not exist\n", reg); |
b45d63b6 BH |
176 | return H_PARAMETER; |
177 | } | |
178 | ||
179 | /* We can't grok a queue size bigger than 256M for now */ | |
180 | if (queue_len < 0x1000 || queue_len > 0x10000000) { | |
d9599c92 DG |
181 | hcall_dprintf("Queue size too small or too big (0x" TARGET_FMT_lx |
182 | ")\n", queue_len); | |
b45d63b6 BH |
183 | return H_PARAMETER; |
184 | } | |
185 | ||
186 | /* Check queue alignment */ | |
187 | if (queue_addr & 0xfff) { | |
d9599c92 | 188 | hcall_dprintf("Queue not aligned (0x" TARGET_FMT_lx ")\n", queue_addr); |
b45d63b6 BH |
189 | return H_PARAMETER; |
190 | } | |
191 | ||
192 | /* Check if device supports CRQs */ | |
193 | if (!dev->crq.SendFunc) { | |
8e01f355 | 194 | hcall_dprintf("Device does not support CRQ\n"); |
b45d63b6 BH |
195 | return H_NOT_FOUND; |
196 | } | |
197 | ||
b45d63b6 BH |
198 | /* Already a queue ? */ |
199 | if (dev->crq.qsize) { | |
8e01f355 | 200 | hcall_dprintf("CRQ already registered\n"); |
b45d63b6 BH |
201 | return H_RESOURCE; |
202 | } | |
203 | dev->crq.qladdr = queue_addr; | |
204 | dev->crq.qsize = queue_len; | |
205 | dev->crq.qnext = 0; | |
206 | ||
f6bda9cb | 207 | DPRINTF("CRQ for dev 0x" TARGET_FMT_lx " registered at 0x" |
b45d63b6 BH |
208 | TARGET_FMT_lx "/0x" TARGET_FMT_lx "\n", |
209 | reg, queue_addr, queue_len); | |
210 | return H_SUCCESS; | |
211 | } | |
212 | ||
8e01f355 DG |
213 | static target_ulong free_crq(VIOsPAPRDevice *dev) |
214 | { | |
215 | dev->crq.qladdr = 0; | |
216 | dev->crq.qsize = 0; | |
217 | dev->crq.qnext = 0; | |
218 | ||
f6bda9cb | 219 | DPRINTF("CRQ for dev 0x%" PRIx32 " freed\n", dev->reg); |
8e01f355 DG |
220 | |
221 | return H_SUCCESS; | |
222 | } | |
223 | ||
28e02042 | 224 | static target_ulong h_free_crq(PowerPCCPU *cpu, sPAPRMachineState *spapr, |
b45d63b6 BH |
225 | target_ulong opcode, target_ulong *args) |
226 | { | |
227 | target_ulong reg = args[0]; | |
228 | VIOsPAPRDevice *dev = spapr_vio_find_by_reg(spapr->vio_bus, reg); | |
229 | ||
230 | if (!dev) { | |
d9599c92 | 231 | hcall_dprintf("Unit 0x" TARGET_FMT_lx " does not exist\n", reg); |
b45d63b6 BH |
232 | return H_PARAMETER; |
233 | } | |
234 | ||
8e01f355 | 235 | return free_crq(dev); |
b45d63b6 BH |
236 | } |
237 | ||
28e02042 | 238 | static target_ulong h_send_crq(PowerPCCPU *cpu, sPAPRMachineState *spapr, |
b45d63b6 BH |
239 | target_ulong opcode, target_ulong *args) |
240 | { | |
241 | target_ulong reg = args[0]; | |
242 | target_ulong msg_hi = args[1]; | |
243 | target_ulong msg_lo = args[2]; | |
244 | VIOsPAPRDevice *dev = spapr_vio_find_by_reg(spapr->vio_bus, reg); | |
245 | uint64_t crq_mangle[2]; | |
246 | ||
247 | if (!dev) { | |
d9599c92 | 248 | hcall_dprintf("Unit 0x" TARGET_FMT_lx " does not exist\n", reg); |
b45d63b6 BH |
249 | return H_PARAMETER; |
250 | } | |
251 | crq_mangle[0] = cpu_to_be64(msg_hi); | |
252 | crq_mangle[1] = cpu_to_be64(msg_lo); | |
253 | ||
254 | if (dev->crq.SendFunc) { | |
255 | return dev->crq.SendFunc(dev, (uint8_t *)crq_mangle); | |
256 | } | |
257 | ||
258 | return H_HARDWARE; | |
259 | } | |
260 | ||
28e02042 | 261 | static target_ulong h_enable_crq(PowerPCCPU *cpu, sPAPRMachineState *spapr, |
b45d63b6 BH |
262 | target_ulong opcode, target_ulong *args) |
263 | { | |
264 | target_ulong reg = args[0]; | |
265 | VIOsPAPRDevice *dev = spapr_vio_find_by_reg(spapr->vio_bus, reg); | |
266 | ||
267 | if (!dev) { | |
d9599c92 | 268 | hcall_dprintf("Unit 0x" TARGET_FMT_lx " does not exist\n", reg); |
b45d63b6 BH |
269 | return H_PARAMETER; |
270 | } | |
271 | ||
272 | return 0; | |
273 | } | |
274 | ||
275 | /* Returns negative error, 0 success, or positive: queue full */ | |
276 | int spapr_vio_send_crq(VIOsPAPRDevice *dev, uint8_t *crq) | |
277 | { | |
278 | int rc; | |
279 | uint8_t byte; | |
280 | ||
281 | if (!dev->crq.qsize) { | |
282 | fprintf(stderr, "spapr_vio_send_creq on uninitialized queue\n"); | |
283 | return -1; | |
284 | } | |
285 | ||
286 | /* Maybe do a fast path for KVM just writing to the pages */ | |
ad0ebb91 | 287 | rc = spapr_vio_dma_read(dev, dev->crq.qladdr + dev->crq.qnext, &byte, 1); |
b45d63b6 BH |
288 | if (rc) { |
289 | return rc; | |
290 | } | |
291 | if (byte != 0) { | |
292 | return 1; | |
293 | } | |
294 | ||
ad0ebb91 | 295 | rc = spapr_vio_dma_write(dev, dev->crq.qladdr + dev->crq.qnext + 8, |
b45d63b6 BH |
296 | &crq[8], 8); |
297 | if (rc) { | |
298 | return rc; | |
299 | } | |
300 | ||
301 | kvmppc_eieio(); | |
302 | ||
ad0ebb91 | 303 | rc = spapr_vio_dma_write(dev, dev->crq.qladdr + dev->crq.qnext, crq, 8); |
b45d63b6 BH |
304 | if (rc) { |
305 | return rc; | |
306 | } | |
307 | ||
308 | dev->crq.qnext = (dev->crq.qnext + 16) % dev->crq.qsize; | |
309 | ||
310 | if (dev->signal_state & 1) { | |
a307d594 | 311 | qemu_irq_pulse(spapr_vio_qirq(dev)); |
b45d63b6 BH |
312 | } |
313 | ||
314 | return 0; | |
315 | } | |
316 | ||
08942ac1 BH |
317 | /* "quiesce" handling */ |
318 | ||
319 | static void spapr_vio_quiesce_one(VIOsPAPRDevice *dev) | |
320 | { | |
2b7dc949 | 321 | if (dev->tcet) { |
a83000f5 | 322 | device_reset(DEVICE(dev->tcet)); |
08942ac1 | 323 | } |
4dd96f24 | 324 | free_crq(dev); |
08942ac1 BH |
325 | } |
326 | ||
ee9a569a AK |
327 | void spapr_vio_set_bypass(VIOsPAPRDevice *dev, bool bypass) |
328 | { | |
329 | if (!dev->tcet) { | |
330 | return; | |
331 | } | |
332 | ||
333 | memory_region_set_enabled(&dev->mrbypass, bypass); | |
334 | memory_region_set_enabled(spapr_tce_get_iommu(dev->tcet), !bypass); | |
335 | ||
336 | dev->tcet->bypass = bypass; | |
337 | } | |
338 | ||
28e02042 | 339 | static void rtas_set_tce_bypass(PowerPCCPU *cpu, sPAPRMachineState *spapr, |
210b580b | 340 | uint32_t token, |
08942ac1 BH |
341 | uint32_t nargs, target_ulong args, |
342 | uint32_t nret, target_ulong rets) | |
343 | { | |
344 | VIOsPAPRBus *bus = spapr->vio_bus; | |
345 | VIOsPAPRDevice *dev; | |
346 | uint32_t unit, enable; | |
347 | ||
348 | if (nargs != 2) { | |
a64d325d | 349 | rtas_st(rets, 0, RTAS_OUT_PARAM_ERROR); |
08942ac1 BH |
350 | return; |
351 | } | |
352 | unit = rtas_ld(args, 0); | |
353 | enable = rtas_ld(args, 1); | |
354 | dev = spapr_vio_find_by_reg(bus, unit); | |
355 | if (!dev) { | |
a64d325d | 356 | rtas_st(rets, 0, RTAS_OUT_PARAM_ERROR); |
08942ac1 BH |
357 | return; |
358 | } | |
ad0ebb91 | 359 | |
2b7dc949 | 360 | if (!dev->tcet) { |
a64d325d | 361 | rtas_st(rets, 0, RTAS_OUT_PARAM_ERROR); |
53724ee5 | 362 | return; |
08942ac1 BH |
363 | } |
364 | ||
ee9a569a | 365 | spapr_vio_set_bypass(dev, !!enable); |
53724ee5 | 366 | |
a64d325d | 367 | rtas_st(rets, 0, RTAS_OUT_SUCCESS); |
08942ac1 BH |
368 | } |
369 | ||
28e02042 | 370 | static void rtas_quiesce(PowerPCCPU *cpu, sPAPRMachineState *spapr, |
210b580b | 371 | uint32_t token, |
08942ac1 BH |
372 | uint32_t nargs, target_ulong args, |
373 | uint32_t nret, target_ulong rets) | |
374 | { | |
375 | VIOsPAPRBus *bus = spapr->vio_bus; | |
0866aca1 | 376 | BusChild *kid; |
08942ac1 BH |
377 | VIOsPAPRDevice *dev = NULL; |
378 | ||
379 | if (nargs != 0) { | |
a64d325d | 380 | rtas_st(rets, 0, RTAS_OUT_PARAM_ERROR); |
08942ac1 BH |
381 | return; |
382 | } | |
383 | ||
0866aca1 AL |
384 | QTAILQ_FOREACH(kid, &bus->bus.children, sibling) { |
385 | dev = (VIOsPAPRDevice *)kid->child; | |
08942ac1 BH |
386 | spapr_vio_quiesce_one(dev); |
387 | } | |
388 | ||
a64d325d | 389 | rtas_st(rets, 0, RTAS_OUT_SUCCESS); |
08942ac1 BH |
390 | } |
391 | ||
d601fac4 | 392 | static VIOsPAPRDevice *reg_conflict(VIOsPAPRDevice *dev) |
9fc380d3 | 393 | { |
215e2098 | 394 | VIOsPAPRBus *bus = SPAPR_VIO_BUS(dev->qdev.parent_bus); |
0866aca1 | 395 | BusChild *kid; |
d601fac4 | 396 | VIOsPAPRDevice *other; |
9fc380d3 ME |
397 | |
398 | /* | |
d601fac4 DG |
399 | * Check for a device other than the given one which is already |
400 | * using the requested address. We have to open code this because | |
401 | * the given dev might already be in the list. | |
9fc380d3 | 402 | */ |
0866aca1 | 403 | QTAILQ_FOREACH(kid, &bus->bus.children, sibling) { |
fd506b4f | 404 | other = VIO_SPAPR_DEVICE(kid->child); |
9fc380d3 | 405 | |
d601fac4 DG |
406 | if (other != dev && other->reg == dev->reg) { |
407 | return other; | |
9fc380d3 ME |
408 | } |
409 | } | |
410 | ||
411 | return 0; | |
412 | } | |
413 | ||
b1c7f725 | 414 | static void spapr_vio_busdev_reset(DeviceState *qdev) |
8e01f355 | 415 | { |
fd506b4f | 416 | VIOsPAPRDevice *dev = VIO_SPAPR_DEVICE(qdev); |
b1c7f725 | 417 | VIOsPAPRDeviceClass *pc = VIO_SPAPR_DEVICE_GET_CLASS(dev); |
8e01f355 | 418 | |
4dd96f24 DG |
419 | /* Shut down the request queue and TCEs if necessary */ |
420 | spapr_vio_quiesce_one(dev); | |
421 | ||
422 | dev->signal_state = 0; | |
b1c7f725 | 423 | |
ee9a569a | 424 | spapr_vio_set_bypass(dev, false); |
b1c7f725 DG |
425 | if (pc->reset) { |
426 | pc->reset(dev); | |
427 | } | |
8e01f355 DG |
428 | } |
429 | ||
28b07e73 | 430 | static void spapr_vio_busdev_realize(DeviceState *qdev, Error **errp) |
4040ab72 | 431 | { |
28e02042 | 432 | sPAPRMachineState *spapr = SPAPR_MACHINE(qdev_get_machine()); |
4040ab72 | 433 | VIOsPAPRDevice *dev = (VIOsPAPRDevice *)qdev; |
3954d33a | 434 | VIOsPAPRDeviceClass *pc = VIO_SPAPR_DEVICE_GET_CLASS(dev); |
4040ab72 | 435 | char *id; |
a005b3ef | 436 | Error *local_err = NULL; |
9fc380d3 | 437 | |
d601fac4 DG |
438 | if (dev->reg != -1) { |
439 | /* | |
440 | * Explicitly assigned address, just verify that no-one else | |
441 | * is using it. other mechanism). We have to open code this | |
442 | * rather than using spapr_vio_find_by_reg() because sdev | |
443 | * itself is already in the list. | |
444 | */ | |
445 | VIOsPAPRDevice *other = reg_conflict(dev); | |
446 | ||
447 | if (other) { | |
28b07e73 MA |
448 | error_setg(errp, "%s and %s devices conflict at address %#x", |
449 | object_get_typename(OBJECT(qdev)), | |
450 | object_get_typename(OBJECT(&other->qdev)), | |
451 | dev->reg); | |
452 | return; | |
d601fac4 DG |
453 | } |
454 | } else { | |
455 | /* Need to assign an address */ | |
215e2098 | 456 | VIOsPAPRBus *bus = SPAPR_VIO_BUS(dev->qdev.parent_bus); |
d601fac4 DG |
457 | |
458 | do { | |
459 | dev->reg = bus->next_reg++; | |
460 | } while (reg_conflict(dev)); | |
9fc380d3 | 461 | } |
4040ab72 | 462 | |
1e34d859 ME |
463 | /* Don't overwrite ids assigned on the command line */ |
464 | if (!dev->qdev.id) { | |
c4eda5b7 | 465 | id = spapr_vio_get_dev_name(DEVICE(dev)); |
1e34d859 | 466 | dev->qdev.id = id; |
4040ab72 DG |
467 | } |
468 | ||
a005b3ef GK |
469 | dev->irq = xics_alloc(spapr->icp, 0, dev->irq, false, &local_err); |
470 | if (local_err) { | |
471 | error_propagate(errp, local_err); | |
28b07e73 | 472 | return; |
416343b1 | 473 | } |
4040ab72 | 474 | |
53724ee5 | 475 | if (pc->rtce_window_size) { |
4290ca49 | 476 | uint32_t liobn = SPAPR_VIO_LIOBN(dev->reg); |
ee9a569a AK |
477 | |
478 | memory_region_init(&dev->mrroot, OBJECT(dev), "iommu-spapr-root", | |
479 | ram_size); | |
480 | memory_region_init_alias(&dev->mrbypass, OBJECT(dev), | |
481 | "iommu-spapr-bypass", get_system_memory(), | |
482 | 0, ram_size); | |
483 | memory_region_add_subregion_overlap(&dev->mrroot, 0, &dev->mrbypass, 1); | |
484 | address_space_init(&dev->as, &dev->mrroot, qdev->id); | |
485 | ||
523e7b8a | 486 | dev->tcet = spapr_tce_new_table(qdev, liobn, |
1b8eceee | 487 | 0, |
650f33ad | 488 | SPAPR_TCE_PAGE_SHIFT, |
523e7b8a | 489 | pc->rtce_window_size >> |
9bb62a07 | 490 | SPAPR_TCE_PAGE_SHIFT, false); |
ee9a569a AK |
491 | dev->tcet->vdev = dev; |
492 | memory_region_add_subregion_overlap(&dev->mrroot, 0, | |
493 | spapr_tce_get_iommu(dev->tcet), 2); | |
53724ee5 | 494 | } |
ee86dfee | 495 | |
28b07e73 | 496 | pc->realize(dev, errp); |
4040ab72 DG |
497 | } |
498 | ||
28e02042 | 499 | static target_ulong h_vio_signal(PowerPCCPU *cpu, sPAPRMachineState *spapr, |
00dc738d DG |
500 | target_ulong opcode, |
501 | target_ulong *args) | |
502 | { | |
503 | target_ulong reg = args[0]; | |
504 | target_ulong mode = args[1]; | |
505 | VIOsPAPRDevice *dev = spapr_vio_find_by_reg(spapr->vio_bus, reg); | |
3954d33a | 506 | VIOsPAPRDeviceClass *pc; |
00dc738d DG |
507 | |
508 | if (!dev) { | |
509 | return H_PARAMETER; | |
510 | } | |
511 | ||
3954d33a | 512 | pc = VIO_SPAPR_DEVICE_GET_CLASS(dev); |
00dc738d | 513 | |
3954d33a | 514 | if (mode & ~pc->signal_mask) { |
00dc738d DG |
515 | return H_PARAMETER; |
516 | } | |
517 | ||
518 | dev->signal_state = mode; | |
519 | ||
520 | return H_SUCCESS; | |
521 | } | |
522 | ||
4040ab72 DG |
523 | VIOsPAPRBus *spapr_vio_bus_init(void) |
524 | { | |
525 | VIOsPAPRBus *bus; | |
526 | BusState *qbus; | |
527 | DeviceState *dev; | |
4040ab72 DG |
528 | |
529 | /* Create bridge device */ | |
215e2098 | 530 | dev = qdev_create(NULL, TYPE_SPAPR_VIO_BRIDGE); |
4040ab72 DG |
531 | qdev_init_nofail(dev); |
532 | ||
533 | /* Create bus on bridge device */ | |
0d936928 | 534 | qbus = qbus_create(TYPE_SPAPR_VIO_BUS, dev, "spapr-vio"); |
215e2098 | 535 | bus = SPAPR_VIO_BUS(qbus); |
1ea1ce8a | 536 | bus->next_reg = 0x71000000; |
4040ab72 | 537 | |
00dc738d DG |
538 | /* hcall-vio */ |
539 | spapr_register_hypercall(H_VIO_SIGNAL, h_vio_signal); | |
540 | ||
b45d63b6 BH |
541 | /* hcall-crq */ |
542 | spapr_register_hypercall(H_REG_CRQ, h_reg_crq); | |
543 | spapr_register_hypercall(H_FREE_CRQ, h_free_crq); | |
544 | spapr_register_hypercall(H_SEND_CRQ, h_send_crq); | |
545 | spapr_register_hypercall(H_ENABLE_CRQ, h_enable_crq); | |
546 | ||
08942ac1 | 547 | /* RTAS calls */ |
3a3b8502 AK |
548 | spapr_rtas_register(RTAS_IBM_SET_TCE_BYPASS, "ibm,set-tce-bypass", |
549 | rtas_set_tce_bypass); | |
550 | spapr_rtas_register(RTAS_QUIESCE, "quiesce", rtas_quiesce); | |
08942ac1 | 551 | |
4040ab72 DG |
552 | return bus; |
553 | } | |
554 | ||
555 | /* Represents sPAPR hcall VIO devices */ | |
556 | ||
557 | static int spapr_vio_bridge_init(SysBusDevice *dev) | |
558 | { | |
559 | /* nothing */ | |
560 | return 0; | |
561 | } | |
562 | ||
999e12bb AL |
563 | static void spapr_vio_bridge_class_init(ObjectClass *klass, void *data) |
564 | { | |
39bffca2 | 565 | SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass); |
5a06393f | 566 | DeviceClass *dc = DEVICE_CLASS(klass); |
999e12bb | 567 | |
5a06393f | 568 | dc->fw_name = "vdevice"; |
39bffca2 | 569 | k->init = spapr_vio_bridge_init; |
999e12bb AL |
570 | } |
571 | ||
8c43a6f0 | 572 | static const TypeInfo spapr_vio_bridge_info = { |
215e2098 | 573 | .name = TYPE_SPAPR_VIO_BRIDGE, |
39bffca2 | 574 | .parent = TYPE_SYS_BUS_DEVICE, |
39bffca2 | 575 | .class_init = spapr_vio_bridge_class_init, |
4040ab72 DG |
576 | }; |
577 | ||
b368a7d8 DG |
578 | const VMStateDescription vmstate_spapr_vio = { |
579 | .name = "spapr_vio", | |
580 | .version_id = 1, | |
581 | .minimum_version_id = 1, | |
3aff6c2f | 582 | .fields = (VMStateField[]) { |
b368a7d8 DG |
583 | /* Sanity check */ |
584 | VMSTATE_UINT32_EQUAL(reg, VIOsPAPRDevice), | |
585 | VMSTATE_UINT32_EQUAL(irq, VIOsPAPRDevice), | |
586 | ||
587 | /* General VIO device state */ | |
cbd62f86 | 588 | VMSTATE_UINT64(signal_state, VIOsPAPRDevice), |
b368a7d8 DG |
589 | VMSTATE_UINT64(crq.qladdr, VIOsPAPRDevice), |
590 | VMSTATE_UINT32(crq.qsize, VIOsPAPRDevice), | |
591 | VMSTATE_UINT32(crq.qnext, VIOsPAPRDevice), | |
592 | ||
593 | VMSTATE_END_OF_LIST() | |
594 | }, | |
595 | }; | |
596 | ||
39bffca2 AL |
597 | static void vio_spapr_device_class_init(ObjectClass *klass, void *data) |
598 | { | |
599 | DeviceClass *k = DEVICE_CLASS(klass); | |
28b07e73 | 600 | k->realize = spapr_vio_busdev_realize; |
b1c7f725 | 601 | k->reset = spapr_vio_busdev_reset; |
0d936928 | 602 | k->bus_type = TYPE_SPAPR_VIO_BUS; |
bce54474 | 603 | k->props = spapr_vio_props; |
39bffca2 AL |
604 | } |
605 | ||
8c43a6f0 | 606 | static const TypeInfo spapr_vio_type_info = { |
3954d33a AL |
607 | .name = TYPE_VIO_SPAPR_DEVICE, |
608 | .parent = TYPE_DEVICE, | |
609 | .instance_size = sizeof(VIOsPAPRDevice), | |
610 | .abstract = true, | |
611 | .class_size = sizeof(VIOsPAPRDeviceClass), | |
39bffca2 | 612 | .class_init = vio_spapr_device_class_init, |
3954d33a AL |
613 | }; |
614 | ||
83f7d43a | 615 | static void spapr_vio_register_types(void) |
4040ab72 | 616 | { |
0d936928 | 617 | type_register_static(&spapr_vio_bus_info); |
39bffca2 | 618 | type_register_static(&spapr_vio_bridge_info); |
3954d33a | 619 | type_register_static(&spapr_vio_type_info); |
4040ab72 DG |
620 | } |
621 | ||
83f7d43a | 622 | type_init(spapr_vio_register_types) |
4040ab72 | 623 | |
05c19438 DG |
624 | static int compare_reg(const void *p1, const void *p2) |
625 | { | |
626 | VIOsPAPRDevice const *dev1, *dev2; | |
627 | ||
628 | dev1 = (VIOsPAPRDevice *)*(DeviceState **)p1; | |
629 | dev2 = (VIOsPAPRDevice *)*(DeviceState **)p2; | |
630 | ||
631 | if (dev1->reg < dev2->reg) { | |
632 | return -1; | |
633 | } | |
634 | if (dev1->reg == dev2->reg) { | |
635 | return 0; | |
636 | } | |
637 | ||
638 | /* dev1->reg > dev2->reg */ | |
639 | return 1; | |
640 | } | |
641 | ||
4040ab72 DG |
642 | int spapr_populate_vdevice(VIOsPAPRBus *bus, void *fdt) |
643 | { | |
05c19438 | 644 | DeviceState *qdev, **qdevs; |
0866aca1 | 645 | BusChild *kid; |
05c19438 | 646 | int i, num, ret = 0; |
4040ab72 | 647 | |
05c19438 DG |
648 | /* Count qdevs on the bus list */ |
649 | num = 0; | |
0866aca1 | 650 | QTAILQ_FOREACH(kid, &bus->bus.children, sibling) { |
05c19438 DG |
651 | num++; |
652 | } | |
653 | ||
654 | /* Copy out into an array of pointers */ | |
655 | qdevs = g_malloc(sizeof(qdev) * num); | |
656 | num = 0; | |
0866aca1 AL |
657 | QTAILQ_FOREACH(kid, &bus->bus.children, sibling) { |
658 | qdevs[num++] = kid->child; | |
05c19438 DG |
659 | } |
660 | ||
661 | /* Sort the array */ | |
662 | qsort(qdevs, num, sizeof(qdev), compare_reg); | |
663 | ||
664 | /* Hack alert. Give the devices to libfdt in reverse order, we happen | |
665 | * to know that will mean they are in forward order in the tree. */ | |
666 | for (i = num - 1; i >= 0; i--) { | |
667 | VIOsPAPRDevice *dev = (VIOsPAPRDevice *)(qdevs[i]); | |
4040ab72 DG |
668 | |
669 | ret = vio_make_devnode(dev, fdt); | |
670 | ||
671 | if (ret < 0) { | |
05c19438 | 672 | goto out; |
4040ab72 DG |
673 | } |
674 | } | |
675 | ||
05c19438 DG |
676 | ret = 0; |
677 | out: | |
5f1d1fc5 | 678 | g_free(qdevs); |
05c19438 DG |
679 | |
680 | return ret; | |
4040ab72 | 681 | } |
68f3a94c DG |
682 | |
683 | int spapr_populate_chosen_stdout(void *fdt, VIOsPAPRBus *bus) | |
684 | { | |
685 | VIOsPAPRDevice *dev; | |
686 | char *name, *path; | |
687 | int ret, offset; | |
688 | ||
689 | dev = spapr_vty_get_default(bus); | |
690 | if (!dev) | |
691 | return 0; | |
692 | ||
693 | offset = fdt_path_offset(fdt, "/chosen"); | |
694 | if (offset < 0) { | |
695 | return offset; | |
696 | } | |
697 | ||
c4eda5b7 | 698 | name = spapr_vio_get_dev_name(DEVICE(dev)); |
4ecf8aa5 | 699 | path = g_strdup_printf("/vdevice/%s", name); |
68f3a94c DG |
700 | |
701 | ret = fdt_setprop_string(fdt, offset, "linux,stdout-path", path); | |
4ecf8aa5 SW |
702 | |
703 | g_free(name); | |
704 | g_free(path); | |
68f3a94c DG |
705 | |
706 | return ret; | |
707 | } |