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