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[qemu.git] / hw / acpi / memory_hotplug.c
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b6a0aa05 1#include "qemu/osdep.h"
3ef77aca
IM		 2#include "hw/acpi/memory_hotplug.h"
3#include "hw/acpi/pc-hotplug.h"
4#include "hw/mem/pc-dimm.h"
5#include "hw/boards.h"
c06b2ffb 6#include "hw/qdev-core.h"
dfe292ff 7#include "trace.h"
e688df6b 8#include "qapi/error.h"
112ed241 9#include "qapi/qapi-events-misc.h"
3ef77aca 10
c9c08545
IM		 11#define MEMORY_SLOTS_NUMBER "MDNR"
12#define MEMORY_HOTPLUG_IO_REGION "HPMR"
13#define MEMORY_SLOT_ADDR_LOW "MRBL"
14#define MEMORY_SLOT_ADDR_HIGH "MRBH"
15#define MEMORY_SLOT_SIZE_LOW "MRLL"
16#define MEMORY_SLOT_SIZE_HIGH "MRLH"
17#define MEMORY_SLOT_PROXIMITY "MPX"
18#define MEMORY_SLOT_ENABLED "MES"
19#define MEMORY_SLOT_INSERT_EVENT "MINS"
20#define MEMORY_SLOT_REMOVE_EVENT "MRMV"
21#define MEMORY_SLOT_EJECT "MEJ"
22#define MEMORY_SLOT_SLECTOR "MSEL"
23#define MEMORY_SLOT_OST_EVENT "MOEV"
24#define MEMORY_SLOT_OST_STATUS "MOSC"
25#define MEMORY_SLOT_LOCK "MLCK"
26#define MEMORY_SLOT_STATUS_METHOD "MRST"
27#define MEMORY_SLOT_CRS_METHOD "MCRS"
28#define MEMORY_SLOT_OST_METHOD "MOST"
29#define MEMORY_SLOT_PROXIMITY_METHOD "MPXM"
30#define MEMORY_SLOT_EJECT_METHOD "MEJ0"
31#define MEMORY_SLOT_NOTIFY_METHOD "MTFY"
32#define MEMORY_SLOT_SCAN_METHOD "MSCN"
33#define MEMORY_HOTPLUG_DEVICE "MHPD"
80db0e78 34#define MEMORY_HOTPLUG_IO_LEN 24
e1a58fc0 35#define MEMORY_DEVICES_CONTAINER "\\_SB.MHPC"
80db0e78
IM		 36
37static uint16_t memhp_io_base;
c9c08545 38
43f50410
IM		 39static ACPIOSTInfo *acpi_memory_device_status(int slot, MemStatus *mdev)
40{
41 ACPIOSTInfo *info = g_new0(ACPIOSTInfo, 1);
42
43 info->slot_type = ACPI_SLOT_TYPE_DIMM;
44 info->slot = g_strdup_printf("%d", slot);
45 info->source = mdev->ost_event;
46 info->status = mdev->ost_status;
47 if (mdev->dimm) {
48 DeviceState *dev = DEVICE(mdev->dimm);
49 if (dev->id) {
50 info->device = g_strdup(dev->id);
51 info->has_device = true;
52 }
53 }
54 return info;
55}
56
57void acpi_memory_ospm_status(MemHotplugState *mem_st, ACPIOSTInfoList ***list)
58{
59 int i;
60
61 for (i = 0; i < mem_st->dev_count; i++) {
62 ACPIOSTInfoList *elem = g_new0(ACPIOSTInfoList, 1);
63 elem->value = acpi_memory_device_status(i, &mem_st->devs[i]);
64 elem->next = NULL;
65 **list = elem;
66 *list = &elem->next;
67 }
68}
69
3ef77aca
IM		 70static uint64_t acpi_memory_hotplug_read(void *opaque, hwaddr addr,
71 unsigned int size)
72{
73 uint32_t val = 0;
74 MemHotplugState *mem_st = opaque;
75 MemStatus *mdev;
76 Object *o;
77
78 if (mem_st->selector >= mem_st->dev_count) {
dfe292ff 79 trace_mhp_acpi_invalid_slot_selected(mem_st->selector);
3ef77aca
IM		 80 return 0;
81 }
82
83 mdev = &mem_st->devs[mem_st->selector];
84 o = OBJECT(mdev->dimm);
85 switch (addr) {
86 case 0x0: /* Lo part of phys address where DIMM is mapped */
9ed442b8 87 val = o ? object_property_get_uint(o, PC_DIMM_ADDR_PROP, NULL) : 0;
dfe292ff 88 trace_mhp_acpi_read_addr_lo(mem_st->selector, val);
3ef77aca
IM		 89 break;
90 case 0x4: /* Hi part of phys address where DIMM is mapped */
9ed442b8
MAL		 91 val =
92 o ? object_property_get_uint(o, PC_DIMM_ADDR_PROP, NULL) >> 32 : 0;
dfe292ff 93 trace_mhp_acpi_read_addr_hi(mem_st->selector, val);
3ef77aca
IM		 94 break;
95 case 0x8: /* Lo part of DIMM size */
b053ef61 96 val = o ? object_property_get_uint(o, PC_DIMM_SIZE_PROP, NULL) : 0;
dfe292ff 97 trace_mhp_acpi_read_size_lo(mem_st->selector, val);
3ef77aca
IM		 98 break;
99 case 0xc: /* Hi part of DIMM size */
b053ef61
MAL		 100 val =
101 o ? object_property_get_uint(o, PC_DIMM_SIZE_PROP, NULL) >> 32 : 0;
dfe292ff 102 trace_mhp_acpi_read_size_hi(mem_st->selector, val);
3ef77aca
IM		 103 break;
104 case 0x10: /* node proximity for _PXM method */
9ed442b8 105 val = o ? object_property_get_uint(o, PC_DIMM_NODE_PROP, NULL) : 0;
dfe292ff 106 trace_mhp_acpi_read_pxm(mem_st->selector, val);
3ef77aca
IM		 107 break;
108 case 0x14: /* pack and return is_* fields */
109 val |= mdev->is_enabled ? 1 : 0;
110 val |= mdev->is_inserting ? 2 : 0;
64fec58e 111 val |= mdev->is_removing ? 4 : 0;
dfe292ff 112 trace_mhp_acpi_read_flags(mem_st->selector, val);
3ef77aca
IM		 113 break;
114 default:
115 val = ~0;
116 break;
117 }
118 return val;
119}
120
121static void acpi_memory_hotplug_write(void *opaque, hwaddr addr, uint64_t data,
122 unsigned int size)
123{
124 MemHotplugState *mem_st = opaque;
125 MemStatus *mdev;
5f41fbba 126 ACPIOSTInfo *info;
c06b2ffb
ZG		 127 DeviceState *dev = NULL;
128 HotplugHandler *hotplug_ctrl = NULL;
bc09e061 129 Error *local_err = NULL;
3ef77aca
IM		 130
131 if (!mem_st->dev_count) {
132 return;
133 }
134
135 if (addr) {
136 if (mem_st->selector >= mem_st->dev_count) {
dfe292ff 137 trace_mhp_acpi_invalid_slot_selected(mem_st->selector);
3ef77aca
IM		 138 return;
139 }
140 }
141
142 switch (addr) {
143 case 0x0: /* DIMM slot selector */
144 mem_st->selector = data;
dfe292ff 145 trace_mhp_acpi_write_slot(mem_st->selector);
3ef77aca
IM		 146 break;
147 case 0x4: /* _OST event */
148 mdev = &mem_st->devs[mem_st->selector];
149 if (data == 1) {
150 /* TODO: handle device insert OST event */
151 } else if (data == 3) {
152 /* TODO: handle device remove OST event */
153 }
154 mdev->ost_event = data;
dfe292ff 155 trace_mhp_acpi_write_ost_ev(mem_st->selector, mdev->ost_event);
3ef77aca
IM		 156 break;
157 case 0x8: /* _OST status */
158 mdev = &mem_st->devs[mem_st->selector];
159 mdev->ost_status = data;
dfe292ff 160 trace_mhp_acpi_write_ost_status(mem_st->selector, mdev->ost_status);
3ef77aca 161 /* TODO: implement memory removal on guest signal */
5f41fbba
IM		 162
163 info = acpi_memory_device_status(mem_st->selector, mdev);
164 qapi_event_send_acpi_device_ost(info, &error_abort);
165 qapi_free_ACPIOSTInfo(info);
3ef77aca 166 break;
c06b2ffb 167 case 0x14: /* set is_* fields */
3ef77aca
IM		 168 mdev = &mem_st->devs[mem_st->selector];
169 if (data & 2) { /* clear insert event */
170 mdev->is_inserting = false;
dfe292ff 171 trace_mhp_acpi_clear_insert_evt(mem_st->selector);
c06b2ffb
ZG		 172 } else if (data & 4) {
173 mdev->is_removing = false;
174 trace_mhp_acpi_clear_remove_evt(mem_st->selector);
175 } else if (data & 8) {
176 if (!mdev->is_enabled) {
177 trace_mhp_acpi_ejecting_invalid_slot(mem_st->selector);
178 break;
179 }
180
181 dev = DEVICE(mdev->dimm);
182 hotplug_ctrl = qdev_get_hotplug_handler(dev);
183 /* call pc-dimm unplug cb */
bc09e061
ZG		 184 hotplug_handler_unplug(hotplug_ctrl, dev, &local_err);
185 if (local_err) {
186 trace_mhp_acpi_pc_dimm_delete_failed(mem_st->selector);
187 qapi_event_send_mem_unplug_error(dev->id,
188 error_get_pretty(local_err),
189 &error_abort);
903a41d3 190 error_free(local_err);
bc09e061
ZG		 191 break;
192 }
c06b2ffb 193 trace_mhp_acpi_pc_dimm_deleted(mem_st->selector);
3ef77aca
IM		 194 }
195 break;
c06b2ffb
ZG		 196 default:
197 break;
3ef77aca
IM		 198 }
199
200}
201static const MemoryRegionOps acpi_memory_hotplug_ops = {
202 .read = acpi_memory_hotplug_read,
203 .write = acpi_memory_hotplug_write,
204 .endianness = DEVICE_LITTLE_ENDIAN,
205 .valid = {
206 .min_access_size = 1,
207 .max_access_size = 4,
208 },
209};
210
211void acpi_memory_hotplug_init(MemoryRegion *as, Object *owner,
80db0e78 212 MemHotplugState *state, uint16_t io_base)
3ef77aca
IM		 213{
214 MachineState *machine = MACHINE(qdev_get_machine());
215
216 state->dev_count = machine->ram_slots;
217 if (!state->dev_count) {
218 return;
219 }
220
80db0e78
IM		 221 assert(!memhp_io_base);
222 memhp_io_base = io_base;
3ef77aca
IM		 223 state->devs = g_malloc0(sizeof(*state->devs) * state->dev_count);
224 memory_region_init_io(&state->io, owner, &acpi_memory_hotplug_ops, state,
80db0e78
IM		 225 "acpi-mem-hotplug", MEMORY_HOTPLUG_IO_LEN);
226 memory_region_add_subregion(as, memhp_io_base, &state->io);
3ef77aca
IM		 227}
228
4aae99b6
TC		 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 */
239static MemStatus *
240acpi_memory_slot_status(MemHotplugState *mem_st,
241 DeviceState *dev, Error **errp)
3ef77aca 242{
3ef77aca 243 Error *local_err = NULL;
1d515701
TC		 244 int slot = object_property_get_int(OBJECT(dev), PC_DIMM_SLOT_PROP,
245 &local_err);
3ef77aca
IM		 246
247 if (local_err) {
248 error_propagate(errp, local_err);
4aae99b6 249 return NULL;
3ef77aca
IM		 250 }
251
252 if (slot >= mem_st->dev_count) {
253 char *dev_path = object_get_canonical_path(OBJECT(dev));
4aae99b6 254 error_setg(errp, "acpi_memory_slot_status: "
3ef77aca
IM		 255 "device [%s] returned invalid memory slot[%d]",
256 dev_path, slot);
257 g_free(dev_path);
4aae99b6
TC		 258 return NULL;
259 }
260
261 return &mem_st->devs[slot];
262}
263
0058c082 264void acpi_memory_plug_cb(HotplugHandler *hotplug_dev, MemHotplugState *mem_st,
4aae99b6
TC		 265 DeviceState *dev, Error **errp)
266{
267 MemStatus *mdev;
75f27498
XG		 268 DeviceClass *dc = DEVICE_GET_CLASS(dev);
269
270 if (!dc->hotpluggable) {
271 return;
272 }
4aae99b6
TC		 273
274 mdev = acpi_memory_slot_status(mem_st, dev, errp);
275 if (!mdev) {
3ef77aca
IM		 276 return;
277 }
278
3ef77aca 279 mdev->dimm = dev;
75f27498 280 mdev->is_enabled = true;
4828b10b 281 if (dev->hotplugged) {
75f27498
XG		 282 mdev->is_inserting = true;
283 acpi_send_event(DEVICE(hotplug_dev), ACPI_MEMORY_HOTPLUG_STATUS);
4828b10b 284 }
3ef77aca 285}
f816a62d 286
0058c082 287void acpi_memory_unplug_request_cb(HotplugHandler *hotplug_dev,
64fec58e
TC		 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;
0058c082 299 acpi_send_event(DEVICE(hotplug_dev), ACPI_MEMORY_HOTPLUG_STATUS);
64fec58e
TC		 300}
301
f7d3e29d
TC		 302void 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
f816a62d
IM		 316static const VMStateDescription vmstate_memhp_sts = {
317 .name = "memory hotplug device state",
318 .version_id = 1,
319 .minimum_version_id = 1,
320 .minimum_version_id_old = 1,
321 .fields = (VMStateField[]) {
322 VMSTATE_BOOL(is_enabled, MemStatus),
323 VMSTATE_BOOL(is_inserting, MemStatus),
324 VMSTATE_UINT32(ost_event, MemStatus),
325 VMSTATE_UINT32(ost_status, MemStatus),
326 VMSTATE_END_OF_LIST()
327 }
328};
329
330const VMStateDescription vmstate_memory_hotplug = {
331 .name = "memory hotplug state",
332 .version_id = 1,
333 .minimum_version_id = 1,
334 .minimum_version_id_old = 1,
335 .fields = (VMStateField[]) {
336 VMSTATE_UINT32(selector, MemHotplugState),
337 VMSTATE_STRUCT_VARRAY_POINTER_UINT32(devs, MemHotplugState, dev_count,
338 vmstate_memhp_sts, MemStatus),
339 VMSTATE_END_OF_LIST()
340 }
341};
a2088da3 342
8dfba500 343void build_memory_hotplug_aml(Aml *table, uint32_t nr_mem,
d1957dac
IM		 344 const char *res_root,
345 const char *event_handler_method)
a2088da3 346{
8b35ab27 347 int i;
a2088da3
IM		 348 Aml *ifctx;
349 Aml *method;
e1a58fc0 350 Aml *dev_container;
a2088da3 351 Aml *mem_ctrl_dev;
80db0e78
IM		 352 char *mhp_res_path;
353
354 if (!memhp_io_base) {
355 return;
356 }
a2088da3 357
80db0e78 358 mhp_res_path = g_strdup_printf("%s." MEMORY_HOTPLUG_DEVICE, res_root);
d1957dac 359 mem_ctrl_dev = aml_device("%s", mhp_res_path);
a2088da3 360 {
8dfba500 361 Aml *crs;
a2088da3
IM		 362
363 aml_append(mem_ctrl_dev, aml_name_decl("_HID", aml_string("PNP0A06")));
364 aml_append(mem_ctrl_dev,
365 aml_name_decl("_UID", aml_string("Memory hotplug resources")));
366
8dfba500
IM		 367 crs = aml_resource_template();
368 aml_append(crs,
80db0e78
IM		 369 aml_io(AML_DECODE16, memhp_io_base, memhp_io_base, 0,
370 MEMORY_HOTPLUG_IO_LEN)
8dfba500
IM		 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, AML_SYSTEM_IO,
80db0e78 376 aml_int(memhp_io_base), MEMORY_HOTPLUG_IO_LEN)
8dfba500
IM		 377 );
378
e1a58fc0
IM		 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,
8dfba500
IM		 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));
e1a58fc0 416 aml_append(dev_container, field);
8dfba500 417
e1a58fc0 418 field = aml_field(mmio_path, AML_BYTE_ACC,
8dfba500
IM		 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));
e1a58fc0 432 aml_append(dev_container, field);
8dfba500 433
e1a58fc0 434 field = aml_field(mmio_path, AML_DWORD_ACC,
8dfba500
IM		 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));
e1a58fc0
IM		 442 aml_append(dev_container, field);
443 g_free(mmio_path);
8dfba500 444
a2088da3
IM		 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)));
e1a58fc0 453 aml_append(dev_container, method);
a2088da3 454
e1a58fc0 455 aml_append(dev_container, aml_mutex(MEMORY_SLOT_LOCK, 0));
a2088da3
IM		 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 }
e1a58fc0 511 aml_append(dev_container, method);
a2088da3
IM		 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 }
e1a58fc0 531 aml_append(dev_container, method);
a2088da3
IM		 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 }
e1a58fc0 622 aml_append(dev_container, method);
a2088da3
IM		 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 }
e1a58fc0 636 aml_append(dev_container, method);
a2088da3
IM		 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 }
e1a58fc0 650 aml_append(dev_container, method);
a2088da3
IM		 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 }
e1a58fc0
IM		 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, aml_return(aml_call4(
691 s, aml_name("_UID"), aml_arg(0), aml_arg(1), aml_arg(2)
692 )));
693 aml_append(dev, method);
694
695 method = aml_method("_EJ0", 1, AML_NOTSERIALIZED);
696 s = MEMORY_SLOT_EJECT_METHOD;
697 aml_append(method, aml_return(aml_call2(
698 s, aml_name("_UID"), aml_arg(0))));
699 aml_append(dev, method);
700
701 aml_append(dev_container, dev);
702 }
75ff0f0c 703
e1a58fc0
IM		 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);
75ff0f0c 716 }
e1a58fc0 717 aml_append(table, dev_container);
d1957dac
IM		 718
719 method = aml_method(event_handler_method, 0, AML_NOTSERIALIZED);
e1a58fc0
IM		 720 aml_append(method,
721 aml_call0(MEMORY_DEVICES_CONTAINER "." MEMORY_SLOT_SCAN_METHOD));
d1957dac
IM		 722 aml_append(table, method);
723
724 g_free(mhp_res_path);
75ff0f0c 725}
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