void build_memory_hotplug_aml(Aml *table, uint32_t nr_mem, uint16_t io_base, uint16_t io_len, const char *res_root, const char *event_handler_method) { int i; Aml *ifctx; Aml *method; Aml *sb_scope; Aml *mem_ctrl_dev; char *scan_path; char *mhp_res_path = g_strdup_printf("%s." MEMORY_HOTPLUG_DEVICE, res_root); mem_ctrl_dev = aml_device("%s", mhp_res_path); { Aml *crs; Aml *field; Aml *one = aml_int(1); Aml *zero = aml_int(0); Aml *ret_val = aml_local(0); Aml *slot_arg0 = aml_arg(0); Aml *slots_nr = aml_name(MEMORY_SLOTS_NUMBER); Aml *ctrl_lock = aml_name(MEMORY_SLOT_LOCK); Aml *slot_selector = aml_name(MEMORY_SLOT_SLECTOR); aml_append(mem_ctrl_dev, aml_name_decl("_HID", aml_string("PNP0A06"))); aml_append(mem_ctrl_dev, aml_name_decl("_UID", aml_string("Memory hotplug resources"))); assert(nr_mem <= ACPI_MAX_RAM_SLOTS); aml_append(mem_ctrl_dev, aml_name_decl(MEMORY_SLOTS_NUMBER, aml_int(nr_mem)) ); crs = aml_resource_template(); aml_append(crs, aml_io(AML_DECODE16, io_base, io_base, 0, io_len) ); aml_append(mem_ctrl_dev, aml_name_decl("_CRS", crs)); aml_append(mem_ctrl_dev, aml_operation_region( MEMORY_HOTPLUG_IO_REGION, AML_SYSTEM_IO, aml_int(io_base), io_len) ); field = aml_field(MEMORY_HOTPLUG_IO_REGION, AML_DWORD_ACC, AML_NOLOCK, AML_PRESERVE); aml_append(field, /* read only */ aml_named_field(MEMORY_SLOT_ADDR_LOW, 32)); aml_append(field, /* read only */ aml_named_field(MEMORY_SLOT_ADDR_HIGH, 32)); aml_append(field, /* read only */ aml_named_field(MEMORY_SLOT_SIZE_LOW, 32)); aml_append(field, /* read only */ aml_named_field(MEMORY_SLOT_SIZE_HIGH, 32)); aml_append(field, /* read only */ aml_named_field(MEMORY_SLOT_PROXIMITY, 32)); aml_append(mem_ctrl_dev, field); field = aml_field(MEMORY_HOTPLUG_IO_REGION, AML_BYTE_ACC, AML_NOLOCK, AML_WRITE_AS_ZEROS); aml_append(field, aml_reserved_field(160 /* bits, Offset(20) */)); aml_append(field, /* 1 if enabled, read only */ aml_named_field(MEMORY_SLOT_ENABLED, 1)); aml_append(field, /*(read) 1 if has a insert event. (write) 1 to clear event */ aml_named_field(MEMORY_SLOT_INSERT_EVENT, 1)); aml_append(field, /* (read) 1 if has a remove event. (write) 1 to clear event */ aml_named_field(MEMORY_SLOT_REMOVE_EVENT, 1)); aml_append(field, /* initiates device eject, write only */ aml_named_field(MEMORY_SLOT_EJECT, 1)); aml_append(mem_ctrl_dev, field); field = aml_field(MEMORY_HOTPLUG_IO_REGION, AML_DWORD_ACC, AML_NOLOCK, AML_PRESERVE); aml_append(field, /* DIMM selector, write only */ aml_named_field(MEMORY_SLOT_SLECTOR, 32)); aml_append(field, /* _OST event code, write only */ aml_named_field(MEMORY_SLOT_OST_EVENT, 32)); aml_append(field, /* _OST status code, write only */ aml_named_field(MEMORY_SLOT_OST_STATUS, 32)); aml_append(mem_ctrl_dev, field); method = aml_method("_STA", 0, AML_NOTSERIALIZED); ifctx = aml_if(aml_equal(slots_nr, zero)); { aml_append(ifctx, aml_return(zero)); } aml_append(method, ifctx); /* present, functioning, decoding, not shown in UI */ aml_append(method, aml_return(aml_int(0xB))); aml_append(mem_ctrl_dev, method); aml_append(mem_ctrl_dev, aml_mutex(MEMORY_SLOT_LOCK, 0)); method = aml_method(MEMORY_SLOT_SCAN_METHOD, 0, AML_NOTSERIALIZED); { Aml *else_ctx; Aml *while_ctx; Aml *idx = aml_local(0); Aml *eject_req = aml_int(3); Aml *dev_chk = aml_int(1); ifctx = aml_if(aml_equal(slots_nr, zero)); { aml_append(ifctx, aml_return(zero)); } aml_append(method, ifctx); aml_append(method, aml_store(zero, idx)); aml_append(method, aml_acquire(ctrl_lock, 0xFFFF)); /* build AML that: * loops over all slots and Notifies DIMMs with * Device Check or Eject Request notifications if * slot has corresponding status bit set and clears * slot status. */ while_ctx = aml_while(aml_lless(idx, slots_nr)); { Aml *ins_evt = aml_name(MEMORY_SLOT_INSERT_EVENT); Aml *rm_evt = aml_name(MEMORY_SLOT_REMOVE_EVENT); aml_append(while_ctx, aml_store(idx, slot_selector)); ifctx = aml_if(aml_equal(ins_evt, one)); { aml_append(ifctx, aml_call2(MEMORY_SLOT_NOTIFY_METHOD, idx, dev_chk)); aml_append(ifctx, aml_store(one, ins_evt)); } aml_append(while_ctx, ifctx); else_ctx = aml_else(); ifctx = aml_if(aml_equal(rm_evt, one)); { aml_append(ifctx, aml_call2(MEMORY_SLOT_NOTIFY_METHOD, idx, eject_req)); aml_append(ifctx, aml_store(one, rm_evt)); } aml_append(else_ctx, ifctx); aml_append(while_ctx, else_ctx); aml_append(while_ctx, aml_add(idx, one, idx)); } aml_append(method, while_ctx); aml_append(method, aml_release(ctrl_lock)); aml_append(method, aml_return(one)); } aml_append(mem_ctrl_dev, method); method = aml_method(MEMORY_SLOT_STATUS_METHOD, 1, AML_NOTSERIALIZED); { Aml *slot_enabled = aml_name(MEMORY_SLOT_ENABLED); aml_append(method, aml_store(zero, ret_val)); aml_append(method, aml_acquire(ctrl_lock, 0xFFFF)); aml_append(method, aml_store(aml_to_integer(slot_arg0), slot_selector)); ifctx = aml_if(aml_equal(slot_enabled, one)); { aml_append(ifctx, aml_store(aml_int(0xF), ret_val)); } aml_append(method, ifctx); aml_append(method, aml_release(ctrl_lock)); aml_append(method, aml_return(ret_val)); } aml_append(mem_ctrl_dev, method); method = aml_method(MEMORY_SLOT_CRS_METHOD, 1, AML_SERIALIZED); { Aml *mr64 = aml_name("MR64"); Aml *mr32 = aml_name("MR32"); Aml *crs_tmpl = aml_resource_template(); Aml *minl = aml_name("MINL"); Aml *minh = aml_name("MINH"); Aml *maxl = aml_name("MAXL"); Aml *maxh = aml_name("MAXH"); Aml *lenl = aml_name("LENL"); Aml *lenh = aml_name("LENH"); aml_append(method, aml_acquire(ctrl_lock, 0xFFFF)); aml_append(method, aml_store(aml_to_integer(slot_arg0), slot_selector)); aml_append(crs_tmpl, aml_qword_memory(AML_POS_DECODE, AML_MIN_FIXED, AML_MAX_FIXED, AML_CACHEABLE, AML_READ_WRITE, 0, 0x0, 0xFFFFFFFFFFFFFFFEULL, 0, 0xFFFFFFFFFFFFFFFFULL)); aml_append(method, aml_name_decl("MR64", crs_tmpl)); aml_append(method, aml_create_dword_field(mr64, aml_int(14), "MINL")); aml_append(method, aml_create_dword_field(mr64, aml_int(18), "MINH")); aml_append(method, aml_create_dword_field(mr64, aml_int(38), "LENL")); aml_append(method, aml_create_dword_field(mr64, aml_int(42), "LENH")); aml_append(method, aml_create_dword_field(mr64, aml_int(22), "MAXL")); aml_append(method, aml_create_dword_field(mr64, aml_int(26), "MAXH")); aml_append(method, aml_store(aml_name(MEMORY_SLOT_ADDR_HIGH), minh)); aml_append(method, aml_store(aml_name(MEMORY_SLOT_ADDR_LOW), minl)); aml_append(method, aml_store(aml_name(MEMORY_SLOT_SIZE_HIGH), lenh)); aml_append(method, aml_store(aml_name(MEMORY_SLOT_SIZE_LOW), lenl)); /* 64-bit math: MAX = MIN + LEN - 1 */ aml_append(method, aml_add(minl, lenl, maxl)); aml_append(method, aml_add(minh, lenh, maxh)); ifctx = aml_if(aml_lless(maxl, minl)); { aml_append(ifctx, aml_add(maxh, one, maxh)); } aml_append(method, ifctx); ifctx = aml_if(aml_lless(maxl, one)); { aml_append(ifctx, aml_subtract(maxh, one, maxh)); } aml_append(method, ifctx); aml_append(method, aml_subtract(maxl, one, maxl)); /* return 32-bit _CRS if addr/size is in low mem */ /* TODO: remove it since all hotplugged DIMMs are in high mem */ ifctx = aml_if(aml_equal(maxh, zero)); { crs_tmpl = aml_resource_template(); aml_append(crs_tmpl, aml_dword_memory(AML_POS_DECODE, AML_MIN_FIXED, AML_MAX_FIXED, AML_CACHEABLE, AML_READ_WRITE, 0, 0x0, 0xFFFFFFFE, 0, 0xFFFFFFFF)); aml_append(ifctx, aml_name_decl("MR32", crs_tmpl)); aml_append(ifctx, aml_create_dword_field(mr32, aml_int(10), "MIN")); aml_append(ifctx, aml_create_dword_field(mr32, aml_int(14), "MAX")); aml_append(ifctx, aml_create_dword_field(mr32, aml_int(22), "LEN")); aml_append(ifctx, aml_store(minl, aml_name("MIN"))); aml_append(ifctx, aml_store(maxl, aml_name("MAX"))); aml_append(ifctx, aml_store(lenl, aml_name("LEN"))); aml_append(ifctx, aml_release(ctrl_lock)); aml_append(ifctx, aml_return(mr32)); } aml_append(method, ifctx); aml_append(method, aml_release(ctrl_lock)); aml_append(method, aml_return(mr64)); } aml_append(mem_ctrl_dev, method); method = aml_method(MEMORY_SLOT_PROXIMITY_METHOD, 1, AML_NOTSERIALIZED); { Aml *proximity = aml_name(MEMORY_SLOT_PROXIMITY); aml_append(method, aml_acquire(ctrl_lock, 0xFFFF)); aml_append(method, aml_store(aml_to_integer(slot_arg0), slot_selector)); aml_append(method, aml_store(proximity, ret_val)); aml_append(method, aml_release(ctrl_lock)); aml_append(method, aml_return(ret_val)); } aml_append(mem_ctrl_dev, method); method = aml_method(MEMORY_SLOT_OST_METHOD, 4, AML_NOTSERIALIZED); { Aml *ost_evt = aml_name(MEMORY_SLOT_OST_EVENT); Aml *ost_status = aml_name(MEMORY_SLOT_OST_STATUS); aml_append(method, aml_acquire(ctrl_lock, 0xFFFF)); aml_append(method, aml_store(aml_to_integer(slot_arg0), slot_selector)); aml_append(method, aml_store(aml_arg(1), ost_evt)); aml_append(method, aml_store(aml_arg(2), ost_status)); aml_append(method, aml_release(ctrl_lock)); } aml_append(mem_ctrl_dev, method); method = aml_method(MEMORY_SLOT_EJECT_METHOD, 2, AML_NOTSERIALIZED); { Aml *eject = aml_name(MEMORY_SLOT_EJECT); aml_append(method, aml_acquire(ctrl_lock, 0xFFFF)); aml_append(method, aml_store(aml_to_integer(slot_arg0), slot_selector)); aml_append(method, aml_store(one, eject)); aml_append(method, aml_release(ctrl_lock)); } aml_append(mem_ctrl_dev, method); } aml_append(table, mem_ctrl_dev); sb_scope = aml_scope("_SB"); /* build memory devices */ for (i = 0; i < nr_mem; i++) { Aml *dev; char *s; dev = aml_device("MP%02X", i); aml_append(dev, aml_name_decl("_UID", aml_string("0x%02X", i))); aml_append(dev, aml_name_decl("_HID", aml_eisaid("PNP0C80"))); method = aml_method("_CRS", 0, AML_NOTSERIALIZED); s = g_strdup_printf("%s.%s", mhp_res_path, MEMORY_SLOT_CRS_METHOD); aml_append(method, aml_return(aml_call1(s, aml_name("_UID")))); g_free(s); aml_append(dev, method); method = aml_method("_STA", 0, AML_NOTSERIALIZED); s = g_strdup_printf("%s.%s", mhp_res_path, MEMORY_SLOT_STATUS_METHOD); aml_append(method, aml_return(aml_call1(s, aml_name("_UID")))); g_free(s); aml_append(dev, method); method = aml_method("_PXM", 0, AML_NOTSERIALIZED); s = g_strdup_printf("%s.%s", mhp_res_path, MEMORY_SLOT_PROXIMITY_METHOD); aml_append(method, aml_return(aml_call1(s, aml_name("_UID")))); g_free(s); aml_append(dev, method); method = aml_method("_OST", 3, AML_NOTSERIALIZED); s = g_strdup_printf("%s.%s", mhp_res_path, MEMORY_SLOT_OST_METHOD); aml_append(method, aml_return(aml_call4( s, aml_name("_UID"), aml_arg(0), aml_arg(1), aml_arg(2) ))); g_free(s); aml_append(dev, method); method = aml_method("_EJ0", 1, AML_NOTSERIALIZED); s = g_strdup_printf("%s.%s", mhp_res_path, MEMORY_SLOT_EJECT_METHOD); aml_append(method, aml_return(aml_call2( s, aml_name("_UID"), aml_arg(0)))); g_free(s); aml_append(dev, method); aml_append(sb_scope, dev); } /* build Method(MEMORY_SLOT_NOTIFY_METHOD, 2) { * If (LEqual(Arg0, 0x00)) {Notify(MP00, Arg1)} ... } */ method = aml_method(MEMORY_SLOT_NOTIFY_METHOD, 2, AML_NOTSERIALIZED); for (i = 0; i < nr_mem; i++) { ifctx = aml_if(aml_equal(aml_arg(0), aml_int(i))); aml_append(ifctx, aml_notify(aml_name("MP%.02X", i), aml_arg(1)) ); aml_append(method, ifctx); } aml_append(sb_scope, method); aml_append(table, sb_scope); method = aml_method(event_handler_method, 0, AML_NOTSERIALIZED); scan_path = g_strdup_printf("%s.%s", mhp_res_path, MEMORY_SLOT_SCAN_METHOD); aml_append(method, aml_call0(scan_path)); g_free(scan_path); aml_append(table, method); g_free(mhp_res_path); }