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