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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 | ||
83c9f4ca | 22 | #include "hw/hw.h" |
9c17d615 | 23 | #include "sysemu/sysemu.h" |
83c9f4ca | 24 | #include "hw/boards.h" |
83c9089e | 25 | #include "monitor/monitor.h" |
83c9f4ca | 26 | #include "hw/loader.h" |
4040ab72 DG |
27 | #include "elf.h" |
28 | #include "hw/sysbus.h" | |
9c17d615 PB |
29 | #include "sysemu/kvm.h" |
30 | #include "sysemu/device_tree.h" | |
b45d63b6 | 31 | #include "kvm_ppc.h" |
4040ab72 | 32 | |
0d09e41a PB |
33 | #include "hw/ppc/spapr.h" |
34 | #include "hw/ppc/spapr_vio.h" | |
35 | #include "hw/ppc/xics.h" | |
4040ab72 DG |
36 | |
37 | #ifdef CONFIG_FDT | |
38 | #include <libfdt.h> | |
39 | #endif /* CONFIG_FDT */ | |
40 | ||
41 | /* #define DEBUG_SPAPR */ | |
42 | ||
43 | #ifdef DEBUG_SPAPR | |
44 | #define dprintf(fmt, ...) \ | |
45 | do { fprintf(stderr, fmt, ## __VA_ARGS__); } while (0) | |
46 | #else | |
47 | #define dprintf(fmt, ...) \ | |
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; | |
73 | } | |
74 | ||
0d936928 AL |
75 | static const TypeInfo spapr_vio_bus_info = { |
76 | .name = TYPE_SPAPR_VIO_BUS, | |
77 | .parent = TYPE_BUS, | |
c4eda5b7 | 78 | .class_init = spapr_vio_bus_class_init, |
0d936928 | 79 | .instance_size = sizeof(VIOsPAPRBus), |
4040ab72 DG |
80 | }; |
81 | ||
82 | VIOsPAPRDevice *spapr_vio_find_by_reg(VIOsPAPRBus *bus, uint32_t reg) | |
83 | { | |
0866aca1 | 84 | BusChild *kid; |
4040ab72 DG |
85 | VIOsPAPRDevice *dev = NULL; |
86 | ||
0866aca1 AL |
87 | QTAILQ_FOREACH(kid, &bus->bus.children, sibling) { |
88 | dev = (VIOsPAPRDevice *)kid->child; | |
4040ab72 | 89 | if (dev->reg == reg) { |
5435352c | 90 | return dev; |
4040ab72 DG |
91 | } |
92 | } | |
93 | ||
5435352c | 94 | return NULL; |
4040ab72 DG |
95 | } |
96 | ||
97 | #ifdef CONFIG_FDT | |
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 | ||
5c4cbcf2 | 148 | ret = spapr_tcet_dma_dt(fdt, node_off, "ibm,my-dma-window", dev->dma); |
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 | } | |
162 | #endif /* CONFIG_FDT */ | |
163 | ||
b45d63b6 BH |
164 | /* |
165 | * CRQ handling | |
166 | */ | |
b13ce26d | 167 | static target_ulong h_reg_crq(PowerPCCPU *cpu, sPAPREnvironment *spapr, |
b45d63b6 BH |
168 | target_ulong opcode, target_ulong *args) |
169 | { | |
170 | target_ulong reg = args[0]; | |
171 | target_ulong queue_addr = args[1]; | |
172 | target_ulong queue_len = args[2]; | |
173 | VIOsPAPRDevice *dev = spapr_vio_find_by_reg(spapr->vio_bus, reg); | |
174 | ||
175 | if (!dev) { | |
d9599c92 | 176 | hcall_dprintf("Unit 0x" TARGET_FMT_lx " does not exist\n", reg); |
b45d63b6 BH |
177 | return H_PARAMETER; |
178 | } | |
179 | ||
180 | /* We can't grok a queue size bigger than 256M for now */ | |
181 | if (queue_len < 0x1000 || queue_len > 0x10000000) { | |
d9599c92 DG |
182 | hcall_dprintf("Queue size too small or too big (0x" TARGET_FMT_lx |
183 | ")\n", queue_len); | |
b45d63b6 BH |
184 | return H_PARAMETER; |
185 | } | |
186 | ||
187 | /* Check queue alignment */ | |
188 | if (queue_addr & 0xfff) { | |
d9599c92 | 189 | hcall_dprintf("Queue not aligned (0x" TARGET_FMT_lx ")\n", queue_addr); |
b45d63b6 BH |
190 | return H_PARAMETER; |
191 | } | |
192 | ||
193 | /* Check if device supports CRQs */ | |
194 | if (!dev->crq.SendFunc) { | |
8e01f355 | 195 | hcall_dprintf("Device does not support CRQ\n"); |
b45d63b6 BH |
196 | return H_NOT_FOUND; |
197 | } | |
198 | ||
b45d63b6 BH |
199 | /* Already a queue ? */ |
200 | if (dev->crq.qsize) { | |
8e01f355 | 201 | hcall_dprintf("CRQ already registered\n"); |
b45d63b6 BH |
202 | return H_RESOURCE; |
203 | } | |
204 | dev->crq.qladdr = queue_addr; | |
205 | dev->crq.qsize = queue_len; | |
206 | dev->crq.qnext = 0; | |
207 | ||
208 | dprintf("CRQ for dev 0x" TARGET_FMT_lx " registered at 0x" | |
209 | TARGET_FMT_lx "/0x" TARGET_FMT_lx "\n", | |
210 | reg, queue_addr, queue_len); | |
211 | return H_SUCCESS; | |
212 | } | |
213 | ||
8e01f355 DG |
214 | static target_ulong free_crq(VIOsPAPRDevice *dev) |
215 | { | |
216 | dev->crq.qladdr = 0; | |
217 | dev->crq.qsize = 0; | |
218 | dev->crq.qnext = 0; | |
219 | ||
220 | dprintf("CRQ for dev 0x%" PRIx32 " freed\n", dev->reg); | |
221 | ||
222 | return H_SUCCESS; | |
223 | } | |
224 | ||
b13ce26d | 225 | static target_ulong h_free_crq(PowerPCCPU *cpu, sPAPREnvironment *spapr, |
b45d63b6 BH |
226 | target_ulong opcode, target_ulong *args) |
227 | { | |
228 | target_ulong reg = args[0]; | |
229 | VIOsPAPRDevice *dev = spapr_vio_find_by_reg(spapr->vio_bus, reg); | |
230 | ||
231 | if (!dev) { | |
d9599c92 | 232 | hcall_dprintf("Unit 0x" TARGET_FMT_lx " does not exist\n", reg); |
b45d63b6 BH |
233 | return H_PARAMETER; |
234 | } | |
235 | ||
8e01f355 | 236 | return free_crq(dev); |
b45d63b6 BH |
237 | } |
238 | ||
b13ce26d | 239 | static target_ulong h_send_crq(PowerPCCPU *cpu, sPAPREnvironment *spapr, |
b45d63b6 BH |
240 | target_ulong opcode, target_ulong *args) |
241 | { | |
242 | target_ulong reg = args[0]; | |
243 | target_ulong msg_hi = args[1]; | |
244 | target_ulong msg_lo = args[2]; | |
245 | VIOsPAPRDevice *dev = spapr_vio_find_by_reg(spapr->vio_bus, reg); | |
246 | uint64_t crq_mangle[2]; | |
247 | ||
248 | if (!dev) { | |
d9599c92 | 249 | hcall_dprintf("Unit 0x" TARGET_FMT_lx " does not exist\n", reg); |
b45d63b6 BH |
250 | return H_PARAMETER; |
251 | } | |
252 | crq_mangle[0] = cpu_to_be64(msg_hi); | |
253 | crq_mangle[1] = cpu_to_be64(msg_lo); | |
254 | ||
255 | if (dev->crq.SendFunc) { | |
256 | return dev->crq.SendFunc(dev, (uint8_t *)crq_mangle); | |
257 | } | |
258 | ||
259 | return H_HARDWARE; | |
260 | } | |
261 | ||
b13ce26d | 262 | static target_ulong h_enable_crq(PowerPCCPU *cpu, sPAPREnvironment *spapr, |
b45d63b6 BH |
263 | target_ulong opcode, target_ulong *args) |
264 | { | |
265 | target_ulong reg = args[0]; | |
266 | VIOsPAPRDevice *dev = spapr_vio_find_by_reg(spapr->vio_bus, reg); | |
267 | ||
268 | if (!dev) { | |
d9599c92 | 269 | hcall_dprintf("Unit 0x" TARGET_FMT_lx " does not exist\n", reg); |
b45d63b6 BH |
270 | return H_PARAMETER; |
271 | } | |
272 | ||
273 | return 0; | |
274 | } | |
275 | ||
276 | /* Returns negative error, 0 success, or positive: queue full */ | |
277 | int spapr_vio_send_crq(VIOsPAPRDevice *dev, uint8_t *crq) | |
278 | { | |
279 | int rc; | |
280 | uint8_t byte; | |
281 | ||
282 | if (!dev->crq.qsize) { | |
283 | fprintf(stderr, "spapr_vio_send_creq on uninitialized queue\n"); | |
284 | return -1; | |
285 | } | |
286 | ||
287 | /* Maybe do a fast path for KVM just writing to the pages */ | |
ad0ebb91 | 288 | rc = spapr_vio_dma_read(dev, dev->crq.qladdr + dev->crq.qnext, &byte, 1); |
b45d63b6 BH |
289 | if (rc) { |
290 | return rc; | |
291 | } | |
292 | if (byte != 0) { | |
293 | return 1; | |
294 | } | |
295 | ||
ad0ebb91 | 296 | rc = spapr_vio_dma_write(dev, dev->crq.qladdr + dev->crq.qnext + 8, |
b45d63b6 BH |
297 | &crq[8], 8); |
298 | if (rc) { | |
299 | return rc; | |
300 | } | |
301 | ||
302 | kvmppc_eieio(); | |
303 | ||
ad0ebb91 | 304 | rc = spapr_vio_dma_write(dev, dev->crq.qladdr + dev->crq.qnext, crq, 8); |
b45d63b6 BH |
305 | if (rc) { |
306 | return rc; | |
307 | } | |
308 | ||
309 | dev->crq.qnext = (dev->crq.qnext + 16) % dev->crq.qsize; | |
310 | ||
311 | if (dev->signal_state & 1) { | |
a307d594 | 312 | qemu_irq_pulse(spapr_vio_qirq(dev)); |
b45d63b6 BH |
313 | } |
314 | ||
315 | return 0; | |
316 | } | |
317 | ||
08942ac1 BH |
318 | /* "quiesce" handling */ |
319 | ||
320 | static void spapr_vio_quiesce_one(VIOsPAPRDevice *dev) | |
321 | { | |
ad0ebb91 | 322 | if (dev->dma) { |
53724ee5 | 323 | spapr_tce_reset(dev->dma); |
08942ac1 | 324 | } |
4dd96f24 | 325 | free_crq(dev); |
08942ac1 BH |
326 | } |
327 | ||
328 | static void rtas_set_tce_bypass(sPAPREnvironment *spapr, uint32_t token, | |
329 | uint32_t nargs, target_ulong args, | |
330 | uint32_t nret, target_ulong rets) | |
331 | { | |
332 | VIOsPAPRBus *bus = spapr->vio_bus; | |
333 | VIOsPAPRDevice *dev; | |
334 | uint32_t unit, enable; | |
335 | ||
336 | if (nargs != 2) { | |
337 | rtas_st(rets, 0, -3); | |
338 | return; | |
339 | } | |
340 | unit = rtas_ld(args, 0); | |
341 | enable = rtas_ld(args, 1); | |
342 | dev = spapr_vio_find_by_reg(bus, unit); | |
343 | if (!dev) { | |
344 | rtas_st(rets, 0, -3); | |
345 | return; | |
346 | } | |
ad0ebb91 | 347 | |
53724ee5 DG |
348 | if (!dev->dma) { |
349 | rtas_st(rets, 0, -3); | |
350 | return; | |
08942ac1 BH |
351 | } |
352 | ||
53724ee5 DG |
353 | spapr_tce_set_bypass(dev->dma, !!enable); |
354 | ||
08942ac1 BH |
355 | rtas_st(rets, 0, 0); |
356 | } | |
357 | ||
358 | static void rtas_quiesce(sPAPREnvironment *spapr, uint32_t token, | |
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) { | |
367 | rtas_st(rets, 0, -3); | |
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 | ||
376 | rtas_st(rets, 0, 0); | |
377 | } | |
378 | ||
d601fac4 | 379 | static VIOsPAPRDevice *reg_conflict(VIOsPAPRDevice *dev) |
9fc380d3 | 380 | { |
d601fac4 | 381 | VIOsPAPRBus *bus = DO_UPCAST(VIOsPAPRBus, 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 DG |
410 | |
411 | if (pc->reset) { | |
412 | pc->reset(dev); | |
413 | } | |
8e01f355 DG |
414 | } |
415 | ||
d307af79 | 416 | static int spapr_vio_busdev_init(DeviceState *qdev) |
4040ab72 | 417 | { |
4040ab72 | 418 | VIOsPAPRDevice *dev = (VIOsPAPRDevice *)qdev; |
3954d33a | 419 | VIOsPAPRDeviceClass *pc = VIO_SPAPR_DEVICE_GET_CLASS(dev); |
4040ab72 | 420 | char *id; |
9fc380d3 | 421 | |
d601fac4 DG |
422 | if (dev->reg != -1) { |
423 | /* | |
424 | * Explicitly assigned address, just verify that no-one else | |
425 | * is using it. other mechanism). We have to open code this | |
426 | * rather than using spapr_vio_find_by_reg() because sdev | |
427 | * itself is already in the list. | |
428 | */ | |
429 | VIOsPAPRDevice *other = reg_conflict(dev); | |
430 | ||
431 | if (other) { | |
432 | fprintf(stderr, "vio: %s and %s devices conflict at address %#x\n", | |
433 | object_get_typename(OBJECT(qdev)), | |
434 | object_get_typename(OBJECT(&other->qdev)), | |
435 | dev->reg); | |
436 | return -1; | |
437 | } | |
438 | } else { | |
439 | /* Need to assign an address */ | |
440 | VIOsPAPRBus *bus = DO_UPCAST(VIOsPAPRBus, bus, dev->qdev.parent_bus); | |
441 | ||
442 | do { | |
443 | dev->reg = bus->next_reg++; | |
444 | } while (reg_conflict(dev)); | |
9fc380d3 | 445 | } |
4040ab72 | 446 | |
1e34d859 ME |
447 | /* Don't overwrite ids assigned on the command line */ |
448 | if (!dev->qdev.id) { | |
c4eda5b7 | 449 | id = spapr_vio_get_dev_name(DEVICE(dev)); |
1e34d859 | 450 | dev->qdev.id = id; |
4040ab72 DG |
451 | } |
452 | ||
a307d594 AK |
453 | dev->irq = spapr_allocate_msi(dev->irq); |
454 | if (!dev->irq) { | |
e6c866d4 | 455 | return -1; |
416343b1 | 456 | } |
4040ab72 | 457 | |
53724ee5 DG |
458 | if (pc->rtce_window_size) { |
459 | uint32_t liobn = SPAPR_VIO_BASE_LIOBN | dev->reg; | |
460 | dev->dma = spapr_tce_new_dma_context(liobn, pc->rtce_window_size); | |
461 | } | |
ee86dfee | 462 | |
3954d33a | 463 | return pc->init(dev); |
4040ab72 DG |
464 | } |
465 | ||
b13ce26d | 466 | static target_ulong h_vio_signal(PowerPCCPU *cpu, sPAPREnvironment *spapr, |
00dc738d DG |
467 | target_ulong opcode, |
468 | target_ulong *args) | |
469 | { | |
470 | target_ulong reg = args[0]; | |
471 | target_ulong mode = args[1]; | |
472 | VIOsPAPRDevice *dev = spapr_vio_find_by_reg(spapr->vio_bus, reg); | |
3954d33a | 473 | VIOsPAPRDeviceClass *pc; |
00dc738d DG |
474 | |
475 | if (!dev) { | |
476 | return H_PARAMETER; | |
477 | } | |
478 | ||
3954d33a | 479 | pc = VIO_SPAPR_DEVICE_GET_CLASS(dev); |
00dc738d | 480 | |
3954d33a | 481 | if (mode & ~pc->signal_mask) { |
00dc738d DG |
482 | return H_PARAMETER; |
483 | } | |
484 | ||
485 | dev->signal_state = mode; | |
486 | ||
487 | return H_SUCCESS; | |
488 | } | |
489 | ||
4040ab72 DG |
490 | VIOsPAPRBus *spapr_vio_bus_init(void) |
491 | { | |
492 | VIOsPAPRBus *bus; | |
493 | BusState *qbus; | |
494 | DeviceState *dev; | |
4040ab72 DG |
495 | |
496 | /* Create bridge device */ | |
497 | dev = qdev_create(NULL, "spapr-vio-bridge"); | |
498 | qdev_init_nofail(dev); | |
499 | ||
500 | /* Create bus on bridge device */ | |
501 | ||
0d936928 | 502 | qbus = qbus_create(TYPE_SPAPR_VIO_BUS, dev, "spapr-vio"); |
4040ab72 | 503 | bus = DO_UPCAST(VIOsPAPRBus, bus, qbus); |
1ea1ce8a | 504 | bus->next_reg = 0x71000000; |
4040ab72 | 505 | |
00dc738d DG |
506 | /* hcall-vio */ |
507 | spapr_register_hypercall(H_VIO_SIGNAL, h_vio_signal); | |
508 | ||
b45d63b6 BH |
509 | /* hcall-crq */ |
510 | spapr_register_hypercall(H_REG_CRQ, h_reg_crq); | |
511 | spapr_register_hypercall(H_FREE_CRQ, h_free_crq); | |
512 | spapr_register_hypercall(H_SEND_CRQ, h_send_crq); | |
513 | spapr_register_hypercall(H_ENABLE_CRQ, h_enable_crq); | |
514 | ||
08942ac1 BH |
515 | /* RTAS calls */ |
516 | spapr_rtas_register("ibm,set-tce-bypass", rtas_set_tce_bypass); | |
517 | spapr_rtas_register("quiesce", rtas_quiesce); | |
518 | ||
4040ab72 DG |
519 | return bus; |
520 | } | |
521 | ||
522 | /* Represents sPAPR hcall VIO devices */ | |
523 | ||
524 | static int spapr_vio_bridge_init(SysBusDevice *dev) | |
525 | { | |
526 | /* nothing */ | |
527 | return 0; | |
528 | } | |
529 | ||
999e12bb AL |
530 | static void spapr_vio_bridge_class_init(ObjectClass *klass, void *data) |
531 | { | |
39bffca2 AL |
532 | DeviceClass *dc = DEVICE_CLASS(klass); |
533 | SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass); | |
999e12bb | 534 | |
39bffca2 AL |
535 | k->init = spapr_vio_bridge_init; |
536 | dc->no_user = 1; | |
999e12bb AL |
537 | } |
538 | ||
8c43a6f0 | 539 | static const TypeInfo spapr_vio_bridge_info = { |
39bffca2 AL |
540 | .name = "spapr-vio-bridge", |
541 | .parent = TYPE_SYS_BUS_DEVICE, | |
542 | .instance_size = sizeof(SysBusDevice), | |
543 | .class_init = spapr_vio_bridge_class_init, | |
4040ab72 DG |
544 | }; |
545 | ||
39bffca2 AL |
546 | static void vio_spapr_device_class_init(ObjectClass *klass, void *data) |
547 | { | |
548 | DeviceClass *k = DEVICE_CLASS(klass); | |
549 | k->init = spapr_vio_busdev_init; | |
b1c7f725 | 550 | k->reset = spapr_vio_busdev_reset; |
0d936928 | 551 | k->bus_type = TYPE_SPAPR_VIO_BUS; |
bce54474 | 552 | k->props = spapr_vio_props; |
39bffca2 AL |
553 | } |
554 | ||
8c43a6f0 | 555 | static const TypeInfo spapr_vio_type_info = { |
3954d33a AL |
556 | .name = TYPE_VIO_SPAPR_DEVICE, |
557 | .parent = TYPE_DEVICE, | |
558 | .instance_size = sizeof(VIOsPAPRDevice), | |
559 | .abstract = true, | |
560 | .class_size = sizeof(VIOsPAPRDeviceClass), | |
39bffca2 | 561 | .class_init = vio_spapr_device_class_init, |
3954d33a AL |
562 | }; |
563 | ||
83f7d43a | 564 | static void spapr_vio_register_types(void) |
4040ab72 | 565 | { |
0d936928 | 566 | type_register_static(&spapr_vio_bus_info); |
39bffca2 | 567 | type_register_static(&spapr_vio_bridge_info); |
3954d33a | 568 | type_register_static(&spapr_vio_type_info); |
4040ab72 DG |
569 | } |
570 | ||
83f7d43a | 571 | type_init(spapr_vio_register_types) |
4040ab72 DG |
572 | |
573 | #ifdef CONFIG_FDT | |
05c19438 DG |
574 | static int compare_reg(const void *p1, const void *p2) |
575 | { | |
576 | VIOsPAPRDevice const *dev1, *dev2; | |
577 | ||
578 | dev1 = (VIOsPAPRDevice *)*(DeviceState **)p1; | |
579 | dev2 = (VIOsPAPRDevice *)*(DeviceState **)p2; | |
580 | ||
581 | if (dev1->reg < dev2->reg) { | |
582 | return -1; | |
583 | } | |
584 | if (dev1->reg == dev2->reg) { | |
585 | return 0; | |
586 | } | |
587 | ||
588 | /* dev1->reg > dev2->reg */ | |
589 | return 1; | |
590 | } | |
591 | ||
4040ab72 DG |
592 | int spapr_populate_vdevice(VIOsPAPRBus *bus, void *fdt) |
593 | { | |
05c19438 | 594 | DeviceState *qdev, **qdevs; |
0866aca1 | 595 | BusChild *kid; |
05c19438 | 596 | int i, num, ret = 0; |
4040ab72 | 597 | |
05c19438 DG |
598 | /* Count qdevs on the bus list */ |
599 | num = 0; | |
0866aca1 | 600 | QTAILQ_FOREACH(kid, &bus->bus.children, sibling) { |
05c19438 DG |
601 | num++; |
602 | } | |
603 | ||
604 | /* Copy out into an array of pointers */ | |
605 | qdevs = g_malloc(sizeof(qdev) * num); | |
606 | num = 0; | |
0866aca1 AL |
607 | QTAILQ_FOREACH(kid, &bus->bus.children, sibling) { |
608 | qdevs[num++] = kid->child; | |
05c19438 DG |
609 | } |
610 | ||
611 | /* Sort the array */ | |
612 | qsort(qdevs, num, sizeof(qdev), compare_reg); | |
613 | ||
614 | /* Hack alert. Give the devices to libfdt in reverse order, we happen | |
615 | * to know that will mean they are in forward order in the tree. */ | |
616 | for (i = num - 1; i >= 0; i--) { | |
617 | VIOsPAPRDevice *dev = (VIOsPAPRDevice *)(qdevs[i]); | |
4040ab72 DG |
618 | |
619 | ret = vio_make_devnode(dev, fdt); | |
620 | ||
621 | if (ret < 0) { | |
05c19438 | 622 | goto out; |
4040ab72 DG |
623 | } |
624 | } | |
625 | ||
05c19438 DG |
626 | ret = 0; |
627 | out: | |
628 | free(qdevs); | |
629 | ||
630 | return ret; | |
4040ab72 | 631 | } |
68f3a94c DG |
632 | |
633 | int spapr_populate_chosen_stdout(void *fdt, VIOsPAPRBus *bus) | |
634 | { | |
635 | VIOsPAPRDevice *dev; | |
636 | char *name, *path; | |
637 | int ret, offset; | |
638 | ||
639 | dev = spapr_vty_get_default(bus); | |
640 | if (!dev) | |
641 | return 0; | |
642 | ||
643 | offset = fdt_path_offset(fdt, "/chosen"); | |
644 | if (offset < 0) { | |
645 | return offset; | |
646 | } | |
647 | ||
c4eda5b7 | 648 | name = spapr_vio_get_dev_name(DEVICE(dev)); |
4ecf8aa5 | 649 | path = g_strdup_printf("/vdevice/%s", name); |
68f3a94c DG |
650 | |
651 | ret = fdt_setprop_string(fdt, offset, "linux,stdout-path", path); | |
4ecf8aa5 SW |
652 | |
653 | g_free(name); | |
654 | g_free(path); | |
68f3a94c DG |
655 | |
656 | return ret; | |
657 | } | |
4040ab72 | 658 | #endif /* CONFIG_FDT */ |