Update version for v7.1.0-rc2 release
[qemu.git] / hw / acpi / memory_hotplug.c
1 #include "qemu/osdep.h"
2 #include "hw/acpi/memory_hotplug.h"
3 #include "hw/mem/pc-dimm.h"
4 #include "hw/qdev-core.h"
5 #include "migration/vmstate.h"
6 #include "trace.h"
7 #include "qapi/error.h"
8 #include "qapi/qapi-events-acpi.h"
9 #include "qapi/qapi-events-machine.h"
10 #include "qapi/qapi-events-qdev.h"
11
12 #define MEMORY_SLOTS_NUMBER "MDNR"
13 #define MEMORY_HOTPLUG_IO_REGION "HPMR"
14 #define MEMORY_SLOT_ADDR_LOW "MRBL"
15 #define MEMORY_SLOT_ADDR_HIGH "MRBH"
16 #define MEMORY_SLOT_SIZE_LOW "MRLL"
17 #define MEMORY_SLOT_SIZE_HIGH "MRLH"
18 #define MEMORY_SLOT_PROXIMITY "MPX"
19 #define MEMORY_SLOT_ENABLED "MES"
20 #define MEMORY_SLOT_INSERT_EVENT "MINS"
21 #define MEMORY_SLOT_REMOVE_EVENT "MRMV"
22 #define MEMORY_SLOT_EJECT "MEJ"
23 #define MEMORY_SLOT_SLECTOR "MSEL"
24 #define MEMORY_SLOT_OST_EVENT "MOEV"
25 #define MEMORY_SLOT_OST_STATUS "MOSC"
26 #define MEMORY_SLOT_LOCK "MLCK"
27 #define MEMORY_SLOT_STATUS_METHOD "MRST"
28 #define MEMORY_SLOT_CRS_METHOD "MCRS"
29 #define MEMORY_SLOT_OST_METHOD "MOST"
30 #define MEMORY_SLOT_PROXIMITY_METHOD "MPXM"
31 #define MEMORY_SLOT_EJECT_METHOD "MEJ0"
32 #define MEMORY_SLOT_NOTIFY_METHOD "MTFY"
33 #define MEMORY_HOTPLUG_DEVICE "MHPD"
34
35 static ACPIOSTInfo *acpi_memory_device_status(int slot, MemStatus *mdev)
36 {
37 ACPIOSTInfo *info = g_new0(ACPIOSTInfo, 1);
38
39 info->slot_type = ACPI_SLOT_TYPE_DIMM;
40 info->slot = g_strdup_printf("%d", slot);
41 info->source = mdev->ost_event;
42 info->status = mdev->ost_status;
43 if (mdev->dimm) {
44 DeviceState *dev = DEVICE(mdev->dimm);
45 if (dev->id) {
46 info->device = g_strdup(dev->id);
47 info->has_device = true;
48 }
49 }
50 return info;
51 }
52
53 void acpi_memory_ospm_status(MemHotplugState *mem_st, ACPIOSTInfoList ***list)
54 {
55 ACPIOSTInfoList ***tail = list;
56 int i;
57
58 for (i = 0; i < mem_st->dev_count; i++) {
59 QAPI_LIST_APPEND(*tail,
60 acpi_memory_device_status(i, &mem_st->devs[i]));
61 }
62 }
63
64 static uint64_t acpi_memory_hotplug_read(void *opaque, hwaddr addr,
65 unsigned int size)
66 {
67 uint32_t val = 0;
68 MemHotplugState *mem_st = opaque;
69 MemStatus *mdev;
70 Object *o;
71
72 if (mem_st->selector >= mem_st->dev_count) {
73 trace_mhp_acpi_invalid_slot_selected(mem_st->selector);
74 return 0;
75 }
76
77 mdev = &mem_st->devs[mem_st->selector];
78 o = OBJECT(mdev->dimm);
79 switch (addr) {
80 case 0x0: /* Lo part of phys address where DIMM is mapped */
81 val = o ? object_property_get_uint(o, PC_DIMM_ADDR_PROP, NULL) : 0;
82 trace_mhp_acpi_read_addr_lo(mem_st->selector, val);
83 break;
84 case 0x4: /* Hi part of phys address where DIMM is mapped */
85 val =
86 o ? object_property_get_uint(o, PC_DIMM_ADDR_PROP, NULL) >> 32 : 0;
87 trace_mhp_acpi_read_addr_hi(mem_st->selector, val);
88 break;
89 case 0x8: /* Lo part of DIMM size */
90 val = o ? object_property_get_uint(o, PC_DIMM_SIZE_PROP, NULL) : 0;
91 trace_mhp_acpi_read_size_lo(mem_st->selector, val);
92 break;
93 case 0xc: /* Hi part of DIMM size */
94 val =
95 o ? object_property_get_uint(o, PC_DIMM_SIZE_PROP, NULL) >> 32 : 0;
96 trace_mhp_acpi_read_size_hi(mem_st->selector, val);
97 break;
98 case 0x10: /* node proximity for _PXM method */
99 val = o ? object_property_get_uint(o, PC_DIMM_NODE_PROP, NULL) : 0;
100 trace_mhp_acpi_read_pxm(mem_st->selector, val);
101 break;
102 case 0x14: /* pack and return is_* fields */
103 val |= mdev->is_enabled ? 1 : 0;
104 val |= mdev->is_inserting ? 2 : 0;
105 val |= mdev->is_removing ? 4 : 0;
106 trace_mhp_acpi_read_flags(mem_st->selector, val);
107 break;
108 default:
109 val = ~0;
110 break;
111 }
112 return val;
113 }
114
115 static void acpi_memory_hotplug_write(void *opaque, hwaddr addr, uint64_t data,
116 unsigned int size)
117 {
118 MemHotplugState *mem_st = opaque;
119 MemStatus *mdev;
120 ACPIOSTInfo *info;
121 DeviceState *dev = NULL;
122 HotplugHandler *hotplug_ctrl = NULL;
123 Error *local_err = NULL;
124
125 if (!mem_st->dev_count) {
126 return;
127 }
128
129 if (addr) {
130 if (mem_st->selector >= mem_st->dev_count) {
131 trace_mhp_acpi_invalid_slot_selected(mem_st->selector);
132 return;
133 }
134 }
135
136 switch (addr) {
137 case 0x0: /* DIMM slot selector */
138 mem_st->selector = data;
139 trace_mhp_acpi_write_slot(mem_st->selector);
140 break;
141 case 0x4: /* _OST event */
142 mdev = &mem_st->devs[mem_st->selector];
143 if (data == 1) {
144 /* TODO: handle device insert OST event */
145 } else if (data == 3) {
146 /* TODO: handle device remove OST event */
147 }
148 mdev->ost_event = data;
149 trace_mhp_acpi_write_ost_ev(mem_st->selector, mdev->ost_event);
150 break;
151 case 0x8: /* _OST status */
152 mdev = &mem_st->devs[mem_st->selector];
153 mdev->ost_status = data;
154 trace_mhp_acpi_write_ost_status(mem_st->selector, mdev->ost_status);
155 /* TODO: implement memory removal on guest signal */
156
157 info = acpi_memory_device_status(mem_st->selector, mdev);
158 qapi_event_send_acpi_device_ost(info);
159 qapi_free_ACPIOSTInfo(info);
160 break;
161 case 0x14: /* set is_* fields */
162 mdev = &mem_st->devs[mem_st->selector];
163 if (data & 2) { /* clear insert event */
164 mdev->is_inserting = false;
165 trace_mhp_acpi_clear_insert_evt(mem_st->selector);
166 } else if (data & 4) {
167 mdev->is_removing = false;
168 trace_mhp_acpi_clear_remove_evt(mem_st->selector);
169 } else if (data & 8) {
170 if (!mdev->is_enabled) {
171 trace_mhp_acpi_ejecting_invalid_slot(mem_st->selector);
172 break;
173 }
174
175 dev = DEVICE(mdev->dimm);
176 hotplug_ctrl = qdev_get_hotplug_handler(dev);
177 /* call pc-dimm unplug cb */
178 hotplug_handler_unplug(hotplug_ctrl, dev, &local_err);
179 if (local_err) {
180 trace_mhp_acpi_pc_dimm_delete_failed(mem_st->selector);
181
182 /*
183 * Send both MEM_UNPLUG_ERROR and DEVICE_UNPLUG_GUEST_ERROR
184 * while the deprecation of MEM_UNPLUG_ERROR is
185 * pending.
186 */
187 qapi_event_send_mem_unplug_error(dev->id ? : "",
188 error_get_pretty(local_err));
189 qapi_event_send_device_unplug_guest_error(!!dev->id, dev->id,
190 dev->canonical_path);
191 error_free(local_err);
192 break;
193 }
194 object_unparent(OBJECT(dev));
195 trace_mhp_acpi_pc_dimm_deleted(mem_st->selector);
196 }
197 break;
198 default:
199 break;
200 }
201
202 }
203 static const MemoryRegionOps acpi_memory_hotplug_ops = {
204 .read = acpi_memory_hotplug_read,
205 .write = acpi_memory_hotplug_write,
206 .endianness = DEVICE_LITTLE_ENDIAN,
207 .valid = {
208 .min_access_size = 1,
209 .max_access_size = 4,
210 },
211 };
212
213 void acpi_memory_hotplug_init(MemoryRegion *as, Object *owner,
214 MemHotplugState *state, hwaddr io_base)
215 {
216 MachineState *machine = MACHINE(qdev_get_machine());
217
218 state->dev_count = machine->ram_slots;
219 if (!state->dev_count) {
220 return;
221 }
222
223 state->devs = g_malloc0(sizeof(*state->devs) * state->dev_count);
224 memory_region_init_io(&state->io, owner, &acpi_memory_hotplug_ops, state,
225 "acpi-mem-hotplug", MEMORY_HOTPLUG_IO_LEN);
226 memory_region_add_subregion(as, io_base, &state->io);
227 }
228
229 /**
230 * acpi_memory_slot_status:
231 * @mem_st: memory hotplug state
232 * @dev: device
233 * @errp: set in case of an error
234 *
235 * Obtain a single memory slot status.
236 *
237 * This function will be called by memory unplug request cb and unplug cb.
238 */
239 static MemStatus *
240 acpi_memory_slot_status(MemHotplugState *mem_st,
241 DeviceState *dev, Error **errp)
242 {
243 Error *local_err = NULL;
244 int slot = object_property_get_int(OBJECT(dev), PC_DIMM_SLOT_PROP,
245 &local_err);
246
247 if (local_err) {
248 error_propagate(errp, local_err);
249 return NULL;
250 }
251
252 if (slot >= mem_st->dev_count) {
253 char *dev_path = object_get_canonical_path(OBJECT(dev));
254 error_setg(errp, "acpi_memory_slot_status: "
255 "device [%s] returned invalid memory slot[%d]",
256 dev_path, slot);
257 g_free(dev_path);
258 return NULL;
259 }
260
261 return &mem_st->devs[slot];
262 }
263
264 void acpi_memory_plug_cb(HotplugHandler *hotplug_dev, MemHotplugState *mem_st,
265 DeviceState *dev, Error **errp)
266 {
267 MemStatus *mdev;
268 DeviceClass *dc = DEVICE_GET_CLASS(dev);
269
270 if (!dc->hotpluggable) {
271 return;
272 }
273
274 mdev = acpi_memory_slot_status(mem_st, dev, errp);
275 if (!mdev) {
276 return;
277 }
278
279 mdev->dimm = dev;
280 mdev->is_enabled = true;
281 if (dev->hotplugged) {
282 mdev->is_inserting = true;
283 acpi_send_event(DEVICE(hotplug_dev), ACPI_MEMORY_HOTPLUG_STATUS);
284 }
285 }
286
287 void acpi_memory_unplug_request_cb(HotplugHandler *hotplug_dev,
288 MemHotplugState *mem_st,
289 DeviceState *dev, Error **errp)
290 {
291 MemStatus *mdev;
292
293 mdev = acpi_memory_slot_status(mem_st, dev, errp);
294 if (!mdev) {
295 return;
296 }
297
298 mdev->is_removing = true;
299 acpi_send_event(DEVICE(hotplug_dev), ACPI_MEMORY_HOTPLUG_STATUS);
300 }
301
302 void acpi_memory_unplug_cb(MemHotplugState *mem_st,
303 DeviceState *dev, Error **errp)
304 {
305 MemStatus *mdev;
306
307 mdev = acpi_memory_slot_status(mem_st, dev, errp);
308 if (!mdev) {
309 return;
310 }
311
312 mdev->is_enabled = false;
313 mdev->dimm = NULL;
314 }
315
316 static const VMStateDescription vmstate_memhp_sts = {
317 .name = "memory hotplug device state",
318 .version_id = 1,
319 .minimum_version_id = 1,
320 .fields = (VMStateField[]) {
321 VMSTATE_BOOL(is_enabled, MemStatus),
322 VMSTATE_BOOL(is_inserting, MemStatus),
323 VMSTATE_UINT32(ost_event, MemStatus),
324 VMSTATE_UINT32(ost_status, MemStatus),
325 VMSTATE_END_OF_LIST()
326 }
327 };
328
329 const VMStateDescription vmstate_memory_hotplug = {
330 .name = "memory hotplug state",
331 .version_id = 1,
332 .minimum_version_id = 1,
333 .fields = (VMStateField[]) {
334 VMSTATE_UINT32(selector, MemHotplugState),
335 VMSTATE_STRUCT_VARRAY_POINTER_UINT32(devs, MemHotplugState, dev_count,
336 vmstate_memhp_sts, MemStatus),
337 VMSTATE_END_OF_LIST()
338 }
339 };
340
341 void build_memory_hotplug_aml(Aml *table, uint32_t nr_mem,
342 const char *res_root,
343 const char *event_handler_method,
344 AmlRegionSpace rs, hwaddr memhp_io_base)
345 {
346 int i;
347 Aml *ifctx;
348 Aml *method;
349 Aml *dev_container;
350 Aml *mem_ctrl_dev;
351 char *mhp_res_path;
352
353 mhp_res_path = g_strdup_printf("%s." MEMORY_HOTPLUG_DEVICE, res_root);
354 mem_ctrl_dev = aml_device("%s", mhp_res_path);
355 {
356 Aml *crs;
357
358 aml_append(mem_ctrl_dev, aml_name_decl("_HID", aml_string("PNP0A06")));
359 aml_append(mem_ctrl_dev,
360 aml_name_decl("_UID", aml_string("Memory hotplug resources")));
361
362 crs = aml_resource_template();
363 if (rs == AML_SYSTEM_IO) {
364 aml_append(crs,
365 aml_io(AML_DECODE16, memhp_io_base, memhp_io_base, 0,
366 MEMORY_HOTPLUG_IO_LEN)
367 );
368 } else {
369 aml_append(crs, aml_memory32_fixed(memhp_io_base,
370 MEMORY_HOTPLUG_IO_LEN, AML_READ_WRITE));
371 }
372 aml_append(mem_ctrl_dev, aml_name_decl("_CRS", crs));
373
374 aml_append(mem_ctrl_dev, aml_operation_region(
375 MEMORY_HOTPLUG_IO_REGION, rs,
376 aml_int(memhp_io_base), MEMORY_HOTPLUG_IO_LEN)
377 );
378
379 }
380 aml_append(table, mem_ctrl_dev);
381
382 dev_container = aml_device(MEMORY_DEVICES_CONTAINER);
383 {
384 Aml *field;
385 Aml *one = aml_int(1);
386 Aml *zero = aml_int(0);
387 Aml *ret_val = aml_local(0);
388 Aml *slot_arg0 = aml_arg(0);
389 Aml *slots_nr = aml_name(MEMORY_SLOTS_NUMBER);
390 Aml *ctrl_lock = aml_name(MEMORY_SLOT_LOCK);
391 Aml *slot_selector = aml_name(MEMORY_SLOT_SLECTOR);
392 char *mmio_path = g_strdup_printf("%s." MEMORY_HOTPLUG_IO_REGION,
393 mhp_res_path);
394
395 aml_append(dev_container, aml_name_decl("_HID", aml_string("PNP0A06")));
396 aml_append(dev_container,
397 aml_name_decl("_UID", aml_string("DIMM devices")));
398
399 assert(nr_mem <= ACPI_MAX_RAM_SLOTS);
400 aml_append(dev_container,
401 aml_name_decl(MEMORY_SLOTS_NUMBER, aml_int(nr_mem))
402 );
403
404 field = aml_field(mmio_path, AML_DWORD_ACC,
405 AML_NOLOCK, AML_PRESERVE);
406 aml_append(field, /* read only */
407 aml_named_field(MEMORY_SLOT_ADDR_LOW, 32));
408 aml_append(field, /* read only */
409 aml_named_field(MEMORY_SLOT_ADDR_HIGH, 32));
410 aml_append(field, /* read only */
411 aml_named_field(MEMORY_SLOT_SIZE_LOW, 32));
412 aml_append(field, /* read only */
413 aml_named_field(MEMORY_SLOT_SIZE_HIGH, 32));
414 aml_append(field, /* read only */
415 aml_named_field(MEMORY_SLOT_PROXIMITY, 32));
416 aml_append(dev_container, field);
417
418 field = aml_field(mmio_path, AML_BYTE_ACC,
419 AML_NOLOCK, AML_WRITE_AS_ZEROS);
420 aml_append(field, aml_reserved_field(160 /* bits, Offset(20) */));
421 aml_append(field, /* 1 if enabled, read only */
422 aml_named_field(MEMORY_SLOT_ENABLED, 1));
423 aml_append(field,
424 /*(read) 1 if has a insert event. (write) 1 to clear event */
425 aml_named_field(MEMORY_SLOT_INSERT_EVENT, 1));
426 aml_append(field,
427 /* (read) 1 if has a remove event. (write) 1 to clear event */
428 aml_named_field(MEMORY_SLOT_REMOVE_EVENT, 1));
429 aml_append(field,
430 /* initiates device eject, write only */
431 aml_named_field(MEMORY_SLOT_EJECT, 1));
432 aml_append(dev_container, field);
433
434 field = aml_field(mmio_path, AML_DWORD_ACC,
435 AML_NOLOCK, AML_PRESERVE);
436 aml_append(field, /* DIMM selector, write only */
437 aml_named_field(MEMORY_SLOT_SLECTOR, 32));
438 aml_append(field, /* _OST event code, write only */
439 aml_named_field(MEMORY_SLOT_OST_EVENT, 32));
440 aml_append(field, /* _OST status code, write only */
441 aml_named_field(MEMORY_SLOT_OST_STATUS, 32));
442 aml_append(dev_container, field);
443 g_free(mmio_path);
444
445 method = aml_method("_STA", 0, AML_NOTSERIALIZED);
446 ifctx = aml_if(aml_equal(slots_nr, zero));
447 {
448 aml_append(ifctx, aml_return(zero));
449 }
450 aml_append(method, ifctx);
451 /* present, functioning, decoding, not shown in UI */
452 aml_append(method, aml_return(aml_int(0xB)));
453 aml_append(dev_container, method);
454
455 aml_append(dev_container, aml_mutex(MEMORY_SLOT_LOCK, 0));
456
457 method = aml_method(MEMORY_SLOT_SCAN_METHOD, 0, AML_NOTSERIALIZED);
458 {
459 Aml *else_ctx;
460 Aml *while_ctx;
461 Aml *idx = aml_local(0);
462 Aml *eject_req = aml_int(3);
463 Aml *dev_chk = aml_int(1);
464
465 ifctx = aml_if(aml_equal(slots_nr, zero));
466 {
467 aml_append(ifctx, aml_return(zero));
468 }
469 aml_append(method, ifctx);
470
471 aml_append(method, aml_store(zero, idx));
472 aml_append(method, aml_acquire(ctrl_lock, 0xFFFF));
473 /* build AML that:
474 * loops over all slots and Notifies DIMMs with
475 * Device Check or Eject Request notifications if
476 * slot has corresponding status bit set and clears
477 * slot status.
478 */
479 while_ctx = aml_while(aml_lless(idx, slots_nr));
480 {
481 Aml *ins_evt = aml_name(MEMORY_SLOT_INSERT_EVENT);
482 Aml *rm_evt = aml_name(MEMORY_SLOT_REMOVE_EVENT);
483
484 aml_append(while_ctx, aml_store(idx, slot_selector));
485 ifctx = aml_if(aml_equal(ins_evt, one));
486 {
487 aml_append(ifctx,
488 aml_call2(MEMORY_SLOT_NOTIFY_METHOD,
489 idx, dev_chk));
490 aml_append(ifctx, aml_store(one, ins_evt));
491 }
492 aml_append(while_ctx, ifctx);
493
494 else_ctx = aml_else();
495 ifctx = aml_if(aml_equal(rm_evt, one));
496 {
497 aml_append(ifctx,
498 aml_call2(MEMORY_SLOT_NOTIFY_METHOD,
499 idx, eject_req));
500 aml_append(ifctx, aml_store(one, rm_evt));
501 }
502 aml_append(else_ctx, ifctx);
503 aml_append(while_ctx, else_ctx);
504
505 aml_append(while_ctx, aml_add(idx, one, idx));
506 }
507 aml_append(method, while_ctx);
508 aml_append(method, aml_release(ctrl_lock));
509 aml_append(method, aml_return(one));
510 }
511 aml_append(dev_container, method);
512
513 method = aml_method(MEMORY_SLOT_STATUS_METHOD, 1, AML_NOTSERIALIZED);
514 {
515 Aml *slot_enabled = aml_name(MEMORY_SLOT_ENABLED);
516
517 aml_append(method, aml_store(zero, ret_val));
518 aml_append(method, aml_acquire(ctrl_lock, 0xFFFF));
519 aml_append(method,
520 aml_store(aml_to_integer(slot_arg0), slot_selector));
521
522 ifctx = aml_if(aml_equal(slot_enabled, one));
523 {
524 aml_append(ifctx, aml_store(aml_int(0xF), ret_val));
525 }
526 aml_append(method, ifctx);
527
528 aml_append(method, aml_release(ctrl_lock));
529 aml_append(method, aml_return(ret_val));
530 }
531 aml_append(dev_container, method);
532
533 method = aml_method(MEMORY_SLOT_CRS_METHOD, 1, AML_SERIALIZED);
534 {
535 Aml *mr64 = aml_name("MR64");
536 Aml *mr32 = aml_name("MR32");
537 Aml *crs_tmpl = aml_resource_template();
538 Aml *minl = aml_name("MINL");
539 Aml *minh = aml_name("MINH");
540 Aml *maxl = aml_name("MAXL");
541 Aml *maxh = aml_name("MAXH");
542 Aml *lenl = aml_name("LENL");
543 Aml *lenh = aml_name("LENH");
544
545 aml_append(method, aml_acquire(ctrl_lock, 0xFFFF));
546 aml_append(method, aml_store(aml_to_integer(slot_arg0),
547 slot_selector));
548
549 aml_append(crs_tmpl,
550 aml_qword_memory(AML_POS_DECODE, AML_MIN_FIXED, AML_MAX_FIXED,
551 AML_CACHEABLE, AML_READ_WRITE,
552 0, 0x0, 0xFFFFFFFFFFFFFFFEULL, 0,
553 0xFFFFFFFFFFFFFFFFULL));
554 aml_append(method, aml_name_decl("MR64", crs_tmpl));
555 aml_append(method,
556 aml_create_dword_field(mr64, aml_int(14), "MINL"));
557 aml_append(method,
558 aml_create_dword_field(mr64, aml_int(18), "MINH"));
559 aml_append(method,
560 aml_create_dword_field(mr64, aml_int(38), "LENL"));
561 aml_append(method,
562 aml_create_dword_field(mr64, aml_int(42), "LENH"));
563 aml_append(method,
564 aml_create_dword_field(mr64, aml_int(22), "MAXL"));
565 aml_append(method,
566 aml_create_dword_field(mr64, aml_int(26), "MAXH"));
567
568 aml_append(method,
569 aml_store(aml_name(MEMORY_SLOT_ADDR_HIGH), minh));
570 aml_append(method,
571 aml_store(aml_name(MEMORY_SLOT_ADDR_LOW), minl));
572 aml_append(method,
573 aml_store(aml_name(MEMORY_SLOT_SIZE_HIGH), lenh));
574 aml_append(method,
575 aml_store(aml_name(MEMORY_SLOT_SIZE_LOW), lenl));
576
577 /* 64-bit math: MAX = MIN + LEN - 1 */
578 aml_append(method, aml_add(minl, lenl, maxl));
579 aml_append(method, aml_add(minh, lenh, maxh));
580 ifctx = aml_if(aml_lless(maxl, minl));
581 {
582 aml_append(ifctx, aml_add(maxh, one, maxh));
583 }
584 aml_append(method, ifctx);
585 ifctx = aml_if(aml_lless(maxl, one));
586 {
587 aml_append(ifctx, aml_subtract(maxh, one, maxh));
588 }
589 aml_append(method, ifctx);
590 aml_append(method, aml_subtract(maxl, one, maxl));
591
592 /* return 32-bit _CRS if addr/size is in low mem */
593 /* TODO: remove it since all hotplugged DIMMs are in high mem */
594 ifctx = aml_if(aml_equal(maxh, zero));
595 {
596 crs_tmpl = aml_resource_template();
597 aml_append(crs_tmpl,
598 aml_dword_memory(AML_POS_DECODE, AML_MIN_FIXED,
599 AML_MAX_FIXED, AML_CACHEABLE,
600 AML_READ_WRITE,
601 0, 0x0, 0xFFFFFFFE, 0,
602 0xFFFFFFFF));
603 aml_append(ifctx, aml_name_decl("MR32", crs_tmpl));
604 aml_append(ifctx,
605 aml_create_dword_field(mr32, aml_int(10), "MIN"));
606 aml_append(ifctx,
607 aml_create_dword_field(mr32, aml_int(14), "MAX"));
608 aml_append(ifctx,
609 aml_create_dword_field(mr32, aml_int(22), "LEN"));
610 aml_append(ifctx, aml_store(minl, aml_name("MIN")));
611 aml_append(ifctx, aml_store(maxl, aml_name("MAX")));
612 aml_append(ifctx, aml_store(lenl, aml_name("LEN")));
613
614 aml_append(ifctx, aml_release(ctrl_lock));
615 aml_append(ifctx, aml_return(mr32));
616 }
617 aml_append(method, ifctx);
618
619 aml_append(method, aml_release(ctrl_lock));
620 aml_append(method, aml_return(mr64));
621 }
622 aml_append(dev_container, method);
623
624 method = aml_method(MEMORY_SLOT_PROXIMITY_METHOD, 1,
625 AML_NOTSERIALIZED);
626 {
627 Aml *proximity = aml_name(MEMORY_SLOT_PROXIMITY);
628
629 aml_append(method, aml_acquire(ctrl_lock, 0xFFFF));
630 aml_append(method, aml_store(aml_to_integer(slot_arg0),
631 slot_selector));
632 aml_append(method, aml_store(proximity, ret_val));
633 aml_append(method, aml_release(ctrl_lock));
634 aml_append(method, aml_return(ret_val));
635 }
636 aml_append(dev_container, method);
637
638 method = aml_method(MEMORY_SLOT_OST_METHOD, 4, AML_NOTSERIALIZED);
639 {
640 Aml *ost_evt = aml_name(MEMORY_SLOT_OST_EVENT);
641 Aml *ost_status = aml_name(MEMORY_SLOT_OST_STATUS);
642
643 aml_append(method, aml_acquire(ctrl_lock, 0xFFFF));
644 aml_append(method, aml_store(aml_to_integer(slot_arg0),
645 slot_selector));
646 aml_append(method, aml_store(aml_arg(1), ost_evt));
647 aml_append(method, aml_store(aml_arg(2), ost_status));
648 aml_append(method, aml_release(ctrl_lock));
649 }
650 aml_append(dev_container, method);
651
652 method = aml_method(MEMORY_SLOT_EJECT_METHOD, 2, AML_NOTSERIALIZED);
653 {
654 Aml *eject = aml_name(MEMORY_SLOT_EJECT);
655
656 aml_append(method, aml_acquire(ctrl_lock, 0xFFFF));
657 aml_append(method, aml_store(aml_to_integer(slot_arg0),
658 slot_selector));
659 aml_append(method, aml_store(one, eject));
660 aml_append(method, aml_release(ctrl_lock));
661 }
662 aml_append(dev_container, method);
663
664 /* build memory devices */
665 for (i = 0; i < nr_mem; i++) {
666 Aml *dev;
667 const char *s;
668
669 dev = aml_device("MP%02X", i);
670 aml_append(dev, aml_name_decl("_UID", aml_string("0x%02X", i)));
671 aml_append(dev, aml_name_decl("_HID", aml_eisaid("PNP0C80")));
672
673 method = aml_method("_CRS", 0, AML_NOTSERIALIZED);
674 s = MEMORY_SLOT_CRS_METHOD;
675 aml_append(method, aml_return(aml_call1(s, aml_name("_UID"))));
676 aml_append(dev, method);
677
678 method = aml_method("_STA", 0, AML_NOTSERIALIZED);
679 s = MEMORY_SLOT_STATUS_METHOD;
680 aml_append(method, aml_return(aml_call1(s, aml_name("_UID"))));
681 aml_append(dev, method);
682
683 method = aml_method("_PXM", 0, AML_NOTSERIALIZED);
684 s = MEMORY_SLOT_PROXIMITY_METHOD;
685 aml_append(method, aml_return(aml_call1(s, aml_name("_UID"))));
686 aml_append(dev, method);
687
688 method = aml_method("_OST", 3, AML_NOTSERIALIZED);
689 s = MEMORY_SLOT_OST_METHOD;
690 aml_append(method,
691 aml_call4(s, aml_name("_UID"), aml_arg(0),
692 aml_arg(1), aml_arg(2)));
693 aml_append(dev, method);
694
695 method = aml_method("_EJ0", 1, AML_NOTSERIALIZED);
696 s = MEMORY_SLOT_EJECT_METHOD;
697 aml_append(method,
698 aml_call2(s, aml_name("_UID"), aml_arg(0)));
699 aml_append(dev, method);
700
701 aml_append(dev_container, dev);
702 }
703
704 /* build Method(MEMORY_SLOT_NOTIFY_METHOD, 2) {
705 * If (LEqual(Arg0, 0x00)) {Notify(MP00, Arg1)} ... }
706 */
707 method = aml_method(MEMORY_SLOT_NOTIFY_METHOD, 2, AML_NOTSERIALIZED);
708 for (i = 0; i < nr_mem; i++) {
709 ifctx = aml_if(aml_equal(aml_arg(0), aml_int(i)));
710 aml_append(ifctx,
711 aml_notify(aml_name("MP%.02X", i), aml_arg(1))
712 );
713 aml_append(method, ifctx);
714 }
715 aml_append(dev_container, method);
716 }
717 aml_append(table, dev_container);
718
719 if (event_handler_method) {
720 method = aml_method(event_handler_method, 0, AML_NOTSERIALIZED);
721 aml_append(method, aml_call0(MEMORY_DEVICES_CONTAINER "."
722 MEMORY_SLOT_SCAN_METHOD));
723 aml_append(table, method);
724 }
725
726 g_free(mhp_res_path);
727 }