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Commit | Line | Data |
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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" |
ce9863b7 | 23 | #include "qemu/error-report.h" |
da34e65c | 24 | #include "qapi/error.h" |
83c9f4ca | 25 | #include "hw/hw.h" |
03dd024f | 26 | #include "qemu/log.h" |
9c17d615 | 27 | #include "sysemu/sysemu.h" |
83c9f4ca | 28 | #include "hw/boards.h" |
83c9f4ca | 29 | #include "hw/loader.h" |
4040ab72 DG |
30 | #include "elf.h" |
31 | #include "hw/sysbus.h" | |
9c17d615 PB |
32 | #include "sysemu/kvm.h" |
33 | #include "sysemu/device_tree.h" | |
b45d63b6 | 34 | #include "kvm_ppc.h" |
4040ab72 | 35 | |
0d09e41a PB |
36 | #include "hw/ppc/spapr.h" |
37 | #include "hw/ppc/spapr_vio.h" | |
38 | #include "hw/ppc/xics.h" | |
7ab6a501 | 39 | #include "trace.h" |
4040ab72 | 40 | |
4040ab72 | 41 | #include <libfdt.h> |
4040ab72 | 42 | |
3cb75a7c | 43 | static Property spapr_vio_props[] = { |
a307d594 | 44 | DEFINE_PROP_UINT32("irq", VIOsPAPRDevice, irq, 0), \ |
3cb75a7c PB |
45 | DEFINE_PROP_END_OF_LIST(), |
46 | }; | |
47 | ||
c4eda5b7 DG |
48 | static char *spapr_vio_get_dev_name(DeviceState *qdev) |
49 | { | |
50 | VIOsPAPRDevice *dev = VIO_SPAPR_DEVICE(qdev); | |
51 | VIOsPAPRDeviceClass *pc = VIO_SPAPR_DEVICE_GET_CLASS(dev); | |
c4eda5b7 DG |
52 | |
53 | /* Device tree style name device@reg */ | |
9be38598 | 54 | return g_strdup_printf("%s@%x", pc->dt_name, dev->reg); |
c4eda5b7 DG |
55 | } |
56 | ||
57 | static void spapr_vio_bus_class_init(ObjectClass *klass, void *data) | |
58 | { | |
59 | BusClass *k = BUS_CLASS(klass); | |
60 | ||
61 | k->get_dev_path = spapr_vio_get_dev_name; | |
5a06393f | 62 | k->get_fw_dev_path = spapr_vio_get_dev_name; |
c4eda5b7 DG |
63 | } |
64 | ||
0d936928 AL |
65 | static const TypeInfo spapr_vio_bus_info = { |
66 | .name = TYPE_SPAPR_VIO_BUS, | |
67 | .parent = TYPE_BUS, | |
c4eda5b7 | 68 | .class_init = spapr_vio_bus_class_init, |
0d936928 | 69 | .instance_size = sizeof(VIOsPAPRBus), |
4040ab72 DG |
70 | }; |
71 | ||
72 | VIOsPAPRDevice *spapr_vio_find_by_reg(VIOsPAPRBus *bus, uint32_t reg) | |
73 | { | |
0866aca1 | 74 | BusChild *kid; |
4040ab72 DG |
75 | VIOsPAPRDevice *dev = NULL; |
76 | ||
0866aca1 AL |
77 | QTAILQ_FOREACH(kid, &bus->bus.children, sibling) { |
78 | dev = (VIOsPAPRDevice *)kid->child; | |
4040ab72 | 79 | if (dev->reg == reg) { |
5435352c | 80 | return dev; |
4040ab72 DG |
81 | } |
82 | } | |
83 | ||
5435352c | 84 | return NULL; |
4040ab72 DG |
85 | } |
86 | ||
4040ab72 DG |
87 | static int vio_make_devnode(VIOsPAPRDevice *dev, |
88 | void *fdt) | |
89 | { | |
3954d33a | 90 | VIOsPAPRDeviceClass *pc = VIO_SPAPR_DEVICE_GET_CLASS(dev); |
1e34d859 ME |
91 | int vdevice_off, node_off, ret; |
92 | char *dt_name; | |
4040ab72 DG |
93 | |
94 | vdevice_off = fdt_path_offset(fdt, "/vdevice"); | |
95 | if (vdevice_off < 0) { | |
96 | return vdevice_off; | |
97 | } | |
98 | ||
c4eda5b7 | 99 | dt_name = spapr_vio_get_dev_name(DEVICE(dev)); |
1e34d859 | 100 | node_off = fdt_add_subnode(fdt, vdevice_off, dt_name); |
4ecf8aa5 | 101 | g_free(dt_name); |
4040ab72 DG |
102 | if (node_off < 0) { |
103 | return node_off; | |
104 | } | |
105 | ||
106 | ret = fdt_setprop_cell(fdt, node_off, "reg", dev->reg); | |
107 | if (ret < 0) { | |
108 | return ret; | |
109 | } | |
110 | ||
3954d33a | 111 | if (pc->dt_type) { |
4040ab72 | 112 | ret = fdt_setprop_string(fdt, node_off, "device_type", |
3954d33a | 113 | pc->dt_type); |
4040ab72 DG |
114 | if (ret < 0) { |
115 | return ret; | |
116 | } | |
117 | } | |
118 | ||
3954d33a | 119 | if (pc->dt_compatible) { |
4040ab72 | 120 | ret = fdt_setprop_string(fdt, node_off, "compatible", |
3954d33a | 121 | pc->dt_compatible); |
4040ab72 DG |
122 | if (ret < 0) { |
123 | return ret; | |
124 | } | |
125 | } | |
126 | ||
a307d594 AK |
127 | if (dev->irq) { |
128 | uint32_t ints_prop[] = {cpu_to_be32(dev->irq), 0}; | |
00dc738d DG |
129 | |
130 | ret = fdt_setprop(fdt, node_off, "interrupts", ints_prop, | |
131 | sizeof(ints_prop)); | |
132 | if (ret < 0) { | |
133 | return ret; | |
134 | } | |
135 | } | |
136 | ||
2b7dc949 | 137 | ret = spapr_tcet_dma_dt(fdt, node_off, "ibm,my-dma-window", dev->tcet); |
ad0ebb91 DG |
138 | if (ret < 0) { |
139 | return ret; | |
ee86dfee DG |
140 | } |
141 | ||
3954d33a AL |
142 | if (pc->devnode) { |
143 | ret = (pc->devnode)(dev, fdt, node_off); | |
4040ab72 DG |
144 | if (ret < 0) { |
145 | return ret; | |
146 | } | |
147 | } | |
148 | ||
149 | return node_off; | |
150 | } | |
4040ab72 | 151 | |
b45d63b6 BH |
152 | /* |
153 | * CRQ handling | |
154 | */ | |
28e02042 | 155 | static target_ulong h_reg_crq(PowerPCCPU *cpu, sPAPRMachineState *spapr, |
b45d63b6 BH |
156 | target_ulong opcode, target_ulong *args) |
157 | { | |
158 | target_ulong reg = args[0]; | |
159 | target_ulong queue_addr = args[1]; | |
160 | target_ulong queue_len = args[2]; | |
161 | VIOsPAPRDevice *dev = spapr_vio_find_by_reg(spapr->vio_bus, reg); | |
162 | ||
163 | if (!dev) { | |
d9599c92 | 164 | hcall_dprintf("Unit 0x" TARGET_FMT_lx " does not exist\n", reg); |
b45d63b6 BH |
165 | return H_PARAMETER; |
166 | } | |
167 | ||
168 | /* We can't grok a queue size bigger than 256M for now */ | |
169 | if (queue_len < 0x1000 || queue_len > 0x10000000) { | |
d9599c92 DG |
170 | hcall_dprintf("Queue size too small or too big (0x" TARGET_FMT_lx |
171 | ")\n", queue_len); | |
b45d63b6 BH |
172 | return H_PARAMETER; |
173 | } | |
174 | ||
175 | /* Check queue alignment */ | |
176 | if (queue_addr & 0xfff) { | |
d9599c92 | 177 | hcall_dprintf("Queue not aligned (0x" TARGET_FMT_lx ")\n", queue_addr); |
b45d63b6 BH |
178 | return H_PARAMETER; |
179 | } | |
180 | ||
181 | /* Check if device supports CRQs */ | |
182 | if (!dev->crq.SendFunc) { | |
8e01f355 | 183 | hcall_dprintf("Device does not support CRQ\n"); |
b45d63b6 BH |
184 | return H_NOT_FOUND; |
185 | } | |
186 | ||
b45d63b6 BH |
187 | /* Already a queue ? */ |
188 | if (dev->crq.qsize) { | |
8e01f355 | 189 | hcall_dprintf("CRQ already registered\n"); |
b45d63b6 BH |
190 | return H_RESOURCE; |
191 | } | |
192 | dev->crq.qladdr = queue_addr; | |
193 | dev->crq.qsize = queue_len; | |
194 | dev->crq.qnext = 0; | |
195 | ||
7ab6a501 | 196 | trace_spapr_vio_h_reg_crq(reg, queue_addr, queue_len); |
b45d63b6 BH |
197 | return H_SUCCESS; |
198 | } | |
199 | ||
8e01f355 DG |
200 | static target_ulong free_crq(VIOsPAPRDevice *dev) |
201 | { | |
202 | dev->crq.qladdr = 0; | |
203 | dev->crq.qsize = 0; | |
204 | dev->crq.qnext = 0; | |
205 | ||
7ab6a501 | 206 | trace_spapr_vio_free_crq(dev->reg); |
8e01f355 DG |
207 | |
208 | return H_SUCCESS; | |
209 | } | |
210 | ||
28e02042 | 211 | static target_ulong h_free_crq(PowerPCCPU *cpu, sPAPRMachineState *spapr, |
b45d63b6 BH |
212 | target_ulong opcode, target_ulong *args) |
213 | { | |
214 | target_ulong reg = args[0]; | |
215 | VIOsPAPRDevice *dev = spapr_vio_find_by_reg(spapr->vio_bus, reg); | |
216 | ||
217 | if (!dev) { | |
d9599c92 | 218 | hcall_dprintf("Unit 0x" TARGET_FMT_lx " does not exist\n", reg); |
b45d63b6 BH |
219 | return H_PARAMETER; |
220 | } | |
221 | ||
8e01f355 | 222 | return free_crq(dev); |
b45d63b6 BH |
223 | } |
224 | ||
28e02042 | 225 | static target_ulong h_send_crq(PowerPCCPU *cpu, sPAPRMachineState *spapr, |
b45d63b6 BH |
226 | target_ulong opcode, target_ulong *args) |
227 | { | |
228 | target_ulong reg = args[0]; | |
229 | target_ulong msg_hi = args[1]; | |
230 | target_ulong msg_lo = args[2]; | |
231 | VIOsPAPRDevice *dev = spapr_vio_find_by_reg(spapr->vio_bus, reg); | |
232 | uint64_t crq_mangle[2]; | |
233 | ||
234 | if (!dev) { | |
d9599c92 | 235 | hcall_dprintf("Unit 0x" TARGET_FMT_lx " does not exist\n", reg); |
b45d63b6 BH |
236 | return H_PARAMETER; |
237 | } | |
238 | crq_mangle[0] = cpu_to_be64(msg_hi); | |
239 | crq_mangle[1] = cpu_to_be64(msg_lo); | |
240 | ||
241 | if (dev->crq.SendFunc) { | |
242 | return dev->crq.SendFunc(dev, (uint8_t *)crq_mangle); | |
243 | } | |
244 | ||
245 | return H_HARDWARE; | |
246 | } | |
247 | ||
28e02042 | 248 | static target_ulong h_enable_crq(PowerPCCPU *cpu, sPAPRMachineState *spapr, |
b45d63b6 BH |
249 | target_ulong opcode, target_ulong *args) |
250 | { | |
251 | target_ulong reg = args[0]; | |
252 | VIOsPAPRDevice *dev = spapr_vio_find_by_reg(spapr->vio_bus, reg); | |
253 | ||
254 | if (!dev) { | |
d9599c92 | 255 | hcall_dprintf("Unit 0x" TARGET_FMT_lx " does not exist\n", reg); |
b45d63b6 BH |
256 | return H_PARAMETER; |
257 | } | |
258 | ||
259 | return 0; | |
260 | } | |
261 | ||
262 | /* Returns negative error, 0 success, or positive: queue full */ | |
263 | int spapr_vio_send_crq(VIOsPAPRDevice *dev, uint8_t *crq) | |
264 | { | |
265 | int rc; | |
266 | uint8_t byte; | |
267 | ||
268 | if (!dev->crq.qsize) { | |
ce9863b7 | 269 | error_report("spapr_vio_send_creq on uninitialized queue"); |
b45d63b6 BH |
270 | return -1; |
271 | } | |
272 | ||
273 | /* Maybe do a fast path for KVM just writing to the pages */ | |
ad0ebb91 | 274 | rc = spapr_vio_dma_read(dev, dev->crq.qladdr + dev->crq.qnext, &byte, 1); |
b45d63b6 BH |
275 | if (rc) { |
276 | return rc; | |
277 | } | |
278 | if (byte != 0) { | |
279 | return 1; | |
280 | } | |
281 | ||
ad0ebb91 | 282 | rc = spapr_vio_dma_write(dev, dev->crq.qladdr + dev->crq.qnext + 8, |
b45d63b6 BH |
283 | &crq[8], 8); |
284 | if (rc) { | |
285 | return rc; | |
286 | } | |
287 | ||
288 | kvmppc_eieio(); | |
289 | ||
ad0ebb91 | 290 | rc = spapr_vio_dma_write(dev, dev->crq.qladdr + dev->crq.qnext, crq, 8); |
b45d63b6 BH |
291 | if (rc) { |
292 | return rc; | |
293 | } | |
294 | ||
295 | dev->crq.qnext = (dev->crq.qnext + 16) % dev->crq.qsize; | |
296 | ||
297 | if (dev->signal_state & 1) { | |
a307d594 | 298 | qemu_irq_pulse(spapr_vio_qirq(dev)); |
b45d63b6 BH |
299 | } |
300 | ||
301 | return 0; | |
302 | } | |
303 | ||
08942ac1 BH |
304 | /* "quiesce" handling */ |
305 | ||
306 | static void spapr_vio_quiesce_one(VIOsPAPRDevice *dev) | |
307 | { | |
2b7dc949 | 308 | if (dev->tcet) { |
a83000f5 | 309 | device_reset(DEVICE(dev->tcet)); |
08942ac1 | 310 | } |
4dd96f24 | 311 | free_crq(dev); |
08942ac1 BH |
312 | } |
313 | ||
ee9a569a AK |
314 | void spapr_vio_set_bypass(VIOsPAPRDevice *dev, bool bypass) |
315 | { | |
316 | if (!dev->tcet) { | |
317 | return; | |
318 | } | |
319 | ||
320 | memory_region_set_enabled(&dev->mrbypass, bypass); | |
321 | memory_region_set_enabled(spapr_tce_get_iommu(dev->tcet), !bypass); | |
322 | ||
323 | dev->tcet->bypass = bypass; | |
324 | } | |
325 | ||
28e02042 | 326 | static void rtas_set_tce_bypass(PowerPCCPU *cpu, sPAPRMachineState *spapr, |
210b580b | 327 | uint32_t token, |
08942ac1 BH |
328 | uint32_t nargs, target_ulong args, |
329 | uint32_t nret, target_ulong rets) | |
330 | { | |
331 | VIOsPAPRBus *bus = spapr->vio_bus; | |
332 | VIOsPAPRDevice *dev; | |
333 | uint32_t unit, enable; | |
334 | ||
335 | if (nargs != 2) { | |
a64d325d | 336 | rtas_st(rets, 0, RTAS_OUT_PARAM_ERROR); |
08942ac1 BH |
337 | return; |
338 | } | |
339 | unit = rtas_ld(args, 0); | |
340 | enable = rtas_ld(args, 1); | |
341 | dev = spapr_vio_find_by_reg(bus, unit); | |
342 | if (!dev) { | |
a64d325d | 343 | rtas_st(rets, 0, RTAS_OUT_PARAM_ERROR); |
08942ac1 BH |
344 | return; |
345 | } | |
ad0ebb91 | 346 | |
2b7dc949 | 347 | if (!dev->tcet) { |
a64d325d | 348 | rtas_st(rets, 0, RTAS_OUT_PARAM_ERROR); |
53724ee5 | 349 | return; |
08942ac1 BH |
350 | } |
351 | ||
ee9a569a | 352 | spapr_vio_set_bypass(dev, !!enable); |
53724ee5 | 353 | |
a64d325d | 354 | rtas_st(rets, 0, RTAS_OUT_SUCCESS); |
08942ac1 BH |
355 | } |
356 | ||
28e02042 | 357 | static void rtas_quiesce(PowerPCCPU *cpu, sPAPRMachineState *spapr, |
210b580b | 358 | uint32_t token, |
08942ac1 BH |
359 | uint32_t nargs, target_ulong args, |
360 | uint32_t nret, target_ulong rets) | |
361 | { | |
362 | VIOsPAPRBus *bus = spapr->vio_bus; | |
0866aca1 | 363 | BusChild *kid; |
08942ac1 BH |
364 | VIOsPAPRDevice *dev = NULL; |
365 | ||
366 | if (nargs != 0) { | |
a64d325d | 367 | rtas_st(rets, 0, RTAS_OUT_PARAM_ERROR); |
08942ac1 BH |
368 | return; |
369 | } | |
370 | ||
0866aca1 AL |
371 | QTAILQ_FOREACH(kid, &bus->bus.children, sibling) { |
372 | dev = (VIOsPAPRDevice *)kid->child; | |
08942ac1 BH |
373 | spapr_vio_quiesce_one(dev); |
374 | } | |
375 | ||
a64d325d | 376 | rtas_st(rets, 0, RTAS_OUT_SUCCESS); |
08942ac1 BH |
377 | } |
378 | ||
d601fac4 | 379 | static VIOsPAPRDevice *reg_conflict(VIOsPAPRDevice *dev) |
9fc380d3 | 380 | { |
215e2098 | 381 | VIOsPAPRBus *bus = SPAPR_VIO_BUS(dev->qdev.parent_bus); |
0866aca1 | 382 | BusChild *kid; |
d601fac4 | 383 | VIOsPAPRDevice *other; |
9fc380d3 ME |
384 | |
385 | /* | |
d601fac4 DG |
386 | * Check for a device other than the given one which is already |
387 | * using the requested address. We have to open code this because | |
388 | * the given dev might already be in the list. | |
9fc380d3 | 389 | */ |
0866aca1 | 390 | QTAILQ_FOREACH(kid, &bus->bus.children, sibling) { |
fd506b4f | 391 | other = VIO_SPAPR_DEVICE(kid->child); |
9fc380d3 | 392 | |
d601fac4 DG |
393 | if (other != dev && other->reg == dev->reg) { |
394 | return other; | |
9fc380d3 ME |
395 | } |
396 | } | |
397 | ||
398 | return 0; | |
399 | } | |
400 | ||
b1c7f725 | 401 | static void spapr_vio_busdev_reset(DeviceState *qdev) |
8e01f355 | 402 | { |
fd506b4f | 403 | VIOsPAPRDevice *dev = VIO_SPAPR_DEVICE(qdev); |
b1c7f725 | 404 | VIOsPAPRDeviceClass *pc = VIO_SPAPR_DEVICE_GET_CLASS(dev); |
8e01f355 | 405 | |
4dd96f24 DG |
406 | /* Shut down the request queue and TCEs if necessary */ |
407 | spapr_vio_quiesce_one(dev); | |
408 | ||
409 | dev->signal_state = 0; | |
b1c7f725 | 410 | |
ee9a569a | 411 | spapr_vio_set_bypass(dev, false); |
b1c7f725 DG |
412 | if (pc->reset) { |
413 | pc->reset(dev); | |
414 | } | |
8e01f355 DG |
415 | } |
416 | ||
28b07e73 | 417 | static void spapr_vio_busdev_realize(DeviceState *qdev, Error **errp) |
4040ab72 | 418 | { |
28e02042 | 419 | sPAPRMachineState *spapr = SPAPR_MACHINE(qdev_get_machine()); |
4040ab72 | 420 | VIOsPAPRDevice *dev = (VIOsPAPRDevice *)qdev; |
3954d33a | 421 | VIOsPAPRDeviceClass *pc = VIO_SPAPR_DEVICE_GET_CLASS(dev); |
4040ab72 | 422 | char *id; |
a005b3ef | 423 | Error *local_err = NULL; |
9fc380d3 | 424 | |
d601fac4 DG |
425 | if (dev->reg != -1) { |
426 | /* | |
427 | * Explicitly assigned address, just verify that no-one else | |
428 | * is using it. other mechanism). We have to open code this | |
429 | * rather than using spapr_vio_find_by_reg() because sdev | |
430 | * itself is already in the list. | |
431 | */ | |
432 | VIOsPAPRDevice *other = reg_conflict(dev); | |
433 | ||
434 | if (other) { | |
28b07e73 MA |
435 | error_setg(errp, "%s and %s devices conflict at address %#x", |
436 | object_get_typename(OBJECT(qdev)), | |
437 | object_get_typename(OBJECT(&other->qdev)), | |
438 | dev->reg); | |
439 | return; | |
d601fac4 DG |
440 | } |
441 | } else { | |
442 | /* Need to assign an address */ | |
215e2098 | 443 | VIOsPAPRBus *bus = SPAPR_VIO_BUS(dev->qdev.parent_bus); |
d601fac4 DG |
444 | |
445 | do { | |
446 | dev->reg = bus->next_reg++; | |
447 | } while (reg_conflict(dev)); | |
9fc380d3 | 448 | } |
4040ab72 | 449 | |
1e34d859 ME |
450 | /* Don't overwrite ids assigned on the command line */ |
451 | if (!dev->qdev.id) { | |
c4eda5b7 | 452 | id = spapr_vio_get_dev_name(DEVICE(dev)); |
1e34d859 | 453 | dev->qdev.id = id; |
4040ab72 DG |
454 | } |
455 | ||
cc706a53 | 456 | dev->irq = xics_spapr_alloc(spapr->xics, dev->irq, false, &local_err); |
a005b3ef GK |
457 | if (local_err) { |
458 | error_propagate(errp, local_err); | |
28b07e73 | 459 | return; |
416343b1 | 460 | } |
4040ab72 | 461 | |
53724ee5 | 462 | if (pc->rtce_window_size) { |
4290ca49 | 463 | uint32_t liobn = SPAPR_VIO_LIOBN(dev->reg); |
ee9a569a AK |
464 | |
465 | memory_region_init(&dev->mrroot, OBJECT(dev), "iommu-spapr-root", | |
466 | ram_size); | |
467 | memory_region_init_alias(&dev->mrbypass, OBJECT(dev), | |
468 | "iommu-spapr-bypass", get_system_memory(), | |
469 | 0, ram_size); | |
470 | memory_region_add_subregion_overlap(&dev->mrroot, 0, &dev->mrbypass, 1); | |
471 | address_space_init(&dev->as, &dev->mrroot, qdev->id); | |
472 | ||
df7625d4 AK |
473 | dev->tcet = spapr_tce_new_table(qdev, liobn); |
474 | spapr_tce_table_enable(dev->tcet, SPAPR_TCE_PAGE_SHIFT, 0, | |
475 | pc->rtce_window_size >> SPAPR_TCE_PAGE_SHIFT); | |
ee9a569a AK |
476 | dev->tcet->vdev = dev; |
477 | memory_region_add_subregion_overlap(&dev->mrroot, 0, | |
478 | spapr_tce_get_iommu(dev->tcet), 2); | |
53724ee5 | 479 | } |
ee86dfee | 480 | |
28b07e73 | 481 | pc->realize(dev, errp); |
4040ab72 DG |
482 | } |
483 | ||
28e02042 | 484 | static target_ulong h_vio_signal(PowerPCCPU *cpu, sPAPRMachineState *spapr, |
00dc738d DG |
485 | target_ulong opcode, |
486 | target_ulong *args) | |
487 | { | |
488 | target_ulong reg = args[0]; | |
489 | target_ulong mode = args[1]; | |
490 | VIOsPAPRDevice *dev = spapr_vio_find_by_reg(spapr->vio_bus, reg); | |
3954d33a | 491 | VIOsPAPRDeviceClass *pc; |
00dc738d DG |
492 | |
493 | if (!dev) { | |
494 | return H_PARAMETER; | |
495 | } | |
496 | ||
3954d33a | 497 | pc = VIO_SPAPR_DEVICE_GET_CLASS(dev); |
00dc738d | 498 | |
3954d33a | 499 | if (mode & ~pc->signal_mask) { |
00dc738d DG |
500 | return H_PARAMETER; |
501 | } | |
502 | ||
503 | dev->signal_state = mode; | |
504 | ||
505 | return H_SUCCESS; | |
506 | } | |
507 | ||
4040ab72 DG |
508 | VIOsPAPRBus *spapr_vio_bus_init(void) |
509 | { | |
510 | VIOsPAPRBus *bus; | |
511 | BusState *qbus; | |
512 | DeviceState *dev; | |
4040ab72 DG |
513 | |
514 | /* Create bridge device */ | |
215e2098 | 515 | dev = qdev_create(NULL, TYPE_SPAPR_VIO_BRIDGE); |
4040ab72 DG |
516 | qdev_init_nofail(dev); |
517 | ||
518 | /* Create bus on bridge device */ | |
0d936928 | 519 | qbus = qbus_create(TYPE_SPAPR_VIO_BUS, dev, "spapr-vio"); |
215e2098 | 520 | bus = SPAPR_VIO_BUS(qbus); |
1ea1ce8a | 521 | bus->next_reg = 0x71000000; |
4040ab72 | 522 | |
00dc738d DG |
523 | /* hcall-vio */ |
524 | spapr_register_hypercall(H_VIO_SIGNAL, h_vio_signal); | |
525 | ||
b45d63b6 BH |
526 | /* hcall-crq */ |
527 | spapr_register_hypercall(H_REG_CRQ, h_reg_crq); | |
528 | spapr_register_hypercall(H_FREE_CRQ, h_free_crq); | |
529 | spapr_register_hypercall(H_SEND_CRQ, h_send_crq); | |
530 | spapr_register_hypercall(H_ENABLE_CRQ, h_enable_crq); | |
531 | ||
08942ac1 | 532 | /* RTAS calls */ |
3a3b8502 AK |
533 | spapr_rtas_register(RTAS_IBM_SET_TCE_BYPASS, "ibm,set-tce-bypass", |
534 | rtas_set_tce_bypass); | |
535 | spapr_rtas_register(RTAS_QUIESCE, "quiesce", rtas_quiesce); | |
08942ac1 | 536 | |
4040ab72 DG |
537 | return bus; |
538 | } | |
539 | ||
540 | /* Represents sPAPR hcall VIO devices */ | |
541 | ||
542 | static int spapr_vio_bridge_init(SysBusDevice *dev) | |
543 | { | |
544 | /* nothing */ | |
545 | return 0; | |
546 | } | |
547 | ||
999e12bb AL |
548 | static void spapr_vio_bridge_class_init(ObjectClass *klass, void *data) |
549 | { | |
39bffca2 | 550 | SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass); |
5a06393f | 551 | DeviceClass *dc = DEVICE_CLASS(klass); |
999e12bb | 552 | |
5a06393f | 553 | dc->fw_name = "vdevice"; |
39bffca2 | 554 | k->init = spapr_vio_bridge_init; |
999e12bb AL |
555 | } |
556 | ||
8c43a6f0 | 557 | static const TypeInfo spapr_vio_bridge_info = { |
215e2098 | 558 | .name = TYPE_SPAPR_VIO_BRIDGE, |
39bffca2 | 559 | .parent = TYPE_SYS_BUS_DEVICE, |
39bffca2 | 560 | .class_init = spapr_vio_bridge_class_init, |
4040ab72 DG |
561 | }; |
562 | ||
b368a7d8 DG |
563 | const VMStateDescription vmstate_spapr_vio = { |
564 | .name = "spapr_vio", | |
565 | .version_id = 1, | |
566 | .minimum_version_id = 1, | |
3aff6c2f | 567 | .fields = (VMStateField[]) { |
b368a7d8 DG |
568 | /* Sanity check */ |
569 | VMSTATE_UINT32_EQUAL(reg, VIOsPAPRDevice), | |
570 | VMSTATE_UINT32_EQUAL(irq, VIOsPAPRDevice), | |
571 | ||
572 | /* General VIO device state */ | |
cbd62f86 | 573 | VMSTATE_UINT64(signal_state, VIOsPAPRDevice), |
b368a7d8 DG |
574 | VMSTATE_UINT64(crq.qladdr, VIOsPAPRDevice), |
575 | VMSTATE_UINT32(crq.qsize, VIOsPAPRDevice), | |
576 | VMSTATE_UINT32(crq.qnext, VIOsPAPRDevice), | |
577 | ||
578 | VMSTATE_END_OF_LIST() | |
579 | }, | |
580 | }; | |
581 | ||
39bffca2 AL |
582 | static void vio_spapr_device_class_init(ObjectClass *klass, void *data) |
583 | { | |
584 | DeviceClass *k = DEVICE_CLASS(klass); | |
28b07e73 | 585 | k->realize = spapr_vio_busdev_realize; |
b1c7f725 | 586 | k->reset = spapr_vio_busdev_reset; |
0d936928 | 587 | k->bus_type = TYPE_SPAPR_VIO_BUS; |
bce54474 | 588 | k->props = spapr_vio_props; |
39bffca2 AL |
589 | } |
590 | ||
8c43a6f0 | 591 | static const TypeInfo spapr_vio_type_info = { |
3954d33a AL |
592 | .name = TYPE_VIO_SPAPR_DEVICE, |
593 | .parent = TYPE_DEVICE, | |
594 | .instance_size = sizeof(VIOsPAPRDevice), | |
595 | .abstract = true, | |
596 | .class_size = sizeof(VIOsPAPRDeviceClass), | |
39bffca2 | 597 | .class_init = vio_spapr_device_class_init, |
3954d33a AL |
598 | }; |
599 | ||
83f7d43a | 600 | static void spapr_vio_register_types(void) |
4040ab72 | 601 | { |
0d936928 | 602 | type_register_static(&spapr_vio_bus_info); |
39bffca2 | 603 | type_register_static(&spapr_vio_bridge_info); |
3954d33a | 604 | type_register_static(&spapr_vio_type_info); |
4040ab72 DG |
605 | } |
606 | ||
83f7d43a | 607 | type_init(spapr_vio_register_types) |
4040ab72 | 608 | |
05c19438 DG |
609 | static int compare_reg(const void *p1, const void *p2) |
610 | { | |
611 | VIOsPAPRDevice const *dev1, *dev2; | |
612 | ||
613 | dev1 = (VIOsPAPRDevice *)*(DeviceState **)p1; | |
614 | dev2 = (VIOsPAPRDevice *)*(DeviceState **)p2; | |
615 | ||
616 | if (dev1->reg < dev2->reg) { | |
617 | return -1; | |
618 | } | |
619 | if (dev1->reg == dev2->reg) { | |
620 | return 0; | |
621 | } | |
622 | ||
623 | /* dev1->reg > dev2->reg */ | |
624 | return 1; | |
625 | } | |
626 | ||
4040ab72 DG |
627 | int spapr_populate_vdevice(VIOsPAPRBus *bus, void *fdt) |
628 | { | |
05c19438 | 629 | DeviceState *qdev, **qdevs; |
0866aca1 | 630 | BusChild *kid; |
05c19438 | 631 | int i, num, ret = 0; |
4040ab72 | 632 | |
05c19438 DG |
633 | /* Count qdevs on the bus list */ |
634 | num = 0; | |
0866aca1 | 635 | QTAILQ_FOREACH(kid, &bus->bus.children, sibling) { |
05c19438 DG |
636 | num++; |
637 | } | |
638 | ||
639 | /* Copy out into an array of pointers */ | |
640 | qdevs = g_malloc(sizeof(qdev) * num); | |
641 | num = 0; | |
0866aca1 AL |
642 | QTAILQ_FOREACH(kid, &bus->bus.children, sibling) { |
643 | qdevs[num++] = kid->child; | |
05c19438 DG |
644 | } |
645 | ||
646 | /* Sort the array */ | |
647 | qsort(qdevs, num, sizeof(qdev), compare_reg); | |
648 | ||
649 | /* Hack alert. Give the devices to libfdt in reverse order, we happen | |
650 | * to know that will mean they are in forward order in the tree. */ | |
651 | for (i = num - 1; i >= 0; i--) { | |
652 | VIOsPAPRDevice *dev = (VIOsPAPRDevice *)(qdevs[i]); | |
4040ab72 DG |
653 | |
654 | ret = vio_make_devnode(dev, fdt); | |
655 | ||
656 | if (ret < 0) { | |
05c19438 | 657 | goto out; |
4040ab72 DG |
658 | } |
659 | } | |
660 | ||
05c19438 DG |
661 | ret = 0; |
662 | out: | |
5f1d1fc5 | 663 | g_free(qdevs); |
05c19438 DG |
664 | |
665 | return ret; | |
4040ab72 | 666 | } |
68f3a94c | 667 | |
7c866c6a | 668 | gchar *spapr_vio_stdout_path(VIOsPAPRBus *bus) |
68f3a94c DG |
669 | { |
670 | VIOsPAPRDevice *dev; | |
671 | char *name, *path; | |
68f3a94c DG |
672 | |
673 | dev = spapr_vty_get_default(bus); | |
7c866c6a DG |
674 | if (!dev) { |
675 | return NULL; | |
68f3a94c DG |
676 | } |
677 | ||
c4eda5b7 | 678 | name = spapr_vio_get_dev_name(DEVICE(dev)); |
4ecf8aa5 | 679 | path = g_strdup_printf("/vdevice/%s", name); |
68f3a94c | 680 | |
4ecf8aa5 | 681 | g_free(name); |
7c866c6a | 682 | return path; |
68f3a94c | 683 | } |