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Stefan Reinauer688b3852004-01-28 16:56:14 +00001/*
Uwe Hermannc70e9fc2010-02-15 23:10:19 +00002 * This file is part of the coreboot project.
3 *
Stefan Reinauerf8ee1802008-01-18 15:08:58 +00004 * coreboot ACPI Table support
Stefan Reinauer688b3852004-01-28 16:56:14 +00005 * written by Stefan Reinauer <stepan@openbios.org>
Uwe Hermannc70e9fc2010-02-15 23:10:19 +00006 *
7 * Copyright (C) 2004 SUSE LINUX AG
8 * Copyright (C) 2005-2009 coresystems GmbH
Stefan Reinauer777224c2005-01-19 14:06:41 +00009 *
Stefan Reinauer14e22772010-04-27 06:56:47 +000010 * ACPI FADT, FACS, and DSDT table support added by
Ronald G. Minnich02fa3b22004-10-06 17:33:54 +000011 * Nick Barker <nick.barker9@btinternet.com>, and those portions
Uwe Hermannc70e9fc2010-02-15 23:10:19 +000012 * Copyright (C) 2004 Nick Barker
Stefan Reinauerf622d592005-11-26 16:56:05 +000013 *
Uwe Hermannc70e9fc2010-02-15 23:10:19 +000014 * Copyright (C) 2005 ADVANCED MICRO DEVICES, INC. All Rights Reserved.
Stefan Reinauerd6edf7a2006-01-05 00:19:52 +000015 * 2005.9 yhlu add SRAT table generation
Stefan Reinauer777224c2005-01-19 14:06:41 +000016 */
17
Stefan Reinauer14e22772010-04-27 06:56:47 +000018/*
Stefan Reinauer777224c2005-01-19 14:06:41 +000019 * Each system port implementing ACPI has to provide two functions:
Stefan Reinauer14e22772010-04-27 06:56:47 +000020 *
Stefan Reinauer777224c2005-01-19 14:06:41 +000021 * write_acpi_tables()
22 * acpi_dump_apics()
Stefan Reinauer14e22772010-04-27 06:56:47 +000023 *
Stefan Reinauerc0ac7e92009-11-10 22:17:15 +000024 * See Kontron 986LCD-M port for a good example of an ACPI implementation
25 * in coreboot.
Ronald G. Minnich02fa3b22004-10-06 17:33:54 +000026 */
Stefan Reinauer688b3852004-01-28 16:56:14 +000027
28#include <console/console.h>
29#include <string.h>
30#include <arch/acpi.h>
Rudolf Marek293b5f52009-02-01 18:35:15 +000031#include <arch/acpigen.h>
Stefan Reinauer777224c2005-01-19 14:06:41 +000032#include <device/pci.h>
Stefan Reinauerc0ac7e92009-11-10 22:17:15 +000033#include <cbmem.h>
Patrick Georgic8feedd2012-02-16 18:43:25 +010034#include <cpu/x86/lapic_def.h>
Duncan Lauriecde78012011-10-19 15:32:39 -070035#if CONFIG_COLLECT_TIMESTAMPS
36#include <timestamp.h>
37#endif
Ronald G. Minnich02fa3b22004-10-06 17:33:54 +000038
39u8 acpi_checksum(u8 *table, u32 length)
Stefan Reinauer688b3852004-01-28 16:56:14 +000040{
Uwe Hermann622824c2010-11-19 15:14:42 +000041 u8 ret = 0;
Stefan Reinauer688b3852004-01-28 16:56:14 +000042 while (length--) {
43 ret += *table;
44 table++;
45 }
Stefan Reinauera7648c22004-01-29 17:31:34 +000046 return -ret;
Stefan Reinauer688b3852004-01-28 16:56:14 +000047}
48
Stefan Reinauerc0ac7e92009-11-10 22:17:15 +000049/**
Uwe Hermann622824c2010-11-19 15:14:42 +000050 * Add an ACPI table to the RSDT (and XSDT) structure, recalculate length
51 * and checksum.
Stefan Reinauer06feb882004-02-03 16:11:35 +000052 */
Stefan Reinauerb657a3c2009-07-21 21:38:33 +000053void acpi_add_table(acpi_rsdp_t *rsdp, void *table)
Stefan Reinauer688b3852004-01-28 16:56:14 +000054{
Stefan Reinauerc0ac7e92009-11-10 22:17:15 +000055 int i, entries_num;
Stefan Reinauerb657a3c2009-07-21 21:38:33 +000056 acpi_rsdt_t *rsdt;
57 acpi_xsdt_t *xsdt = NULL;
58
Uwe Hermann622824c2010-11-19 15:14:42 +000059 /* The RSDT is mandatory... */
Stefan Reinauerb657a3c2009-07-21 21:38:33 +000060 rsdt = (acpi_rsdt_t *)rsdp->rsdt_address;
Stefan Reinauerc0ac7e92009-11-10 22:17:15 +000061
Uwe Hermann622824c2010-11-19 15:14:42 +000062 /* ...while the XSDT is not. */
63 if (rsdp->xsdt_address)
Stefan Reinauerb657a3c2009-07-21 21:38:33 +000064 xsdt = (acpi_xsdt_t *)((u32)rsdp->xsdt_address);
Stefan Reinauer14e22772010-04-27 06:56:47 +000065
Uwe Hermann622824c2010-11-19 15:14:42 +000066 /* This should always be MAX_ACPI_TABLES. */
Stefan Reinauerc0ac7e92009-11-10 22:17:15 +000067 entries_num = ARRAY_SIZE(rsdt->entry);
Stefan Reinauer14e22772010-04-27 06:56:47 +000068
Stefan Reinauerc0ac7e92009-11-10 22:17:15 +000069 for (i = 0; i < entries_num; i++) {
Uwe Hermann622824c2010-11-19 15:14:42 +000070 if (rsdt->entry[i] == 0)
Stefan Reinauerc0ac7e92009-11-10 22:17:15 +000071 break;
Stefan Reinauer688b3852004-01-28 16:56:14 +000072 }
73
Stefan Reinauerc0ac7e92009-11-10 22:17:15 +000074 if (i >= entries_num) {
Uwe Hermann622824c2010-11-19 15:14:42 +000075 printk(BIOS_ERR, "ACPI: Error: Could not add ACPI table, "
Cristian Măgherușan-Stanciuba482812011-07-02 00:57:07 +030076 "too many tables.\n");
Stefan Reinauerc0ac7e92009-11-10 22:17:15 +000077 return;
78 }
79
Uwe Hermann622824c2010-11-19 15:14:42 +000080 /* Add table to the RSDT. */
Stefan Reinauerc0ac7e92009-11-10 22:17:15 +000081 rsdt->entry[i] = (u32)table;
82
Uwe Hermann622824c2010-11-19 15:14:42 +000083 /* Fix RSDT length or the kernel will assume invalid entries. */
84 rsdt->header.length = sizeof(acpi_header_t) + (sizeof(u32) * (i + 1));
Stefan Reinauerc0ac7e92009-11-10 22:17:15 +000085
Uwe Hermann622824c2010-11-19 15:14:42 +000086 /* Re-calculate checksum. */
Stefan Reinauerc0ac7e92009-11-10 22:17:15 +000087 rsdt->header.checksum = 0; /* Hope this won't get optimized away */
Uwe Hermann622824c2010-11-19 15:14:42 +000088 rsdt->header.checksum = acpi_checksum((u8 *)rsdt, rsdt->header.length);
Stefan Reinauerc0ac7e92009-11-10 22:17:15 +000089
Uwe Hermann622824c2010-11-19 15:14:42 +000090 /*
91 * And now the same thing for the XSDT. We use the same index as for
Stefan Reinauerc0ac7e92009-11-10 22:17:15 +000092 * now we want the XSDT and RSDT to always be in sync in coreboot.
93 */
94 if (xsdt) {
Uwe Hermann622824c2010-11-19 15:14:42 +000095 /* Add table to the XSDT. */
96 xsdt->entry[i] = (u64)(u32)table;
Stefan Reinauerc0ac7e92009-11-10 22:17:15 +000097
Uwe Hermann622824c2010-11-19 15:14:42 +000098 /* Fix XSDT length. */
Stefan Reinauerc0ac7e92009-11-10 22:17:15 +000099 xsdt->header.length = sizeof(acpi_header_t) +
Cristian Măgherușan-Stanciuba482812011-07-02 00:57:07 +0300100 (sizeof(u64) * (i + 1));
Stefan Reinauerc0ac7e92009-11-10 22:17:15 +0000101
Uwe Hermann622824c2010-11-19 15:14:42 +0000102 /* Re-calculate checksum. */
103 xsdt->header.checksum = 0;
104 xsdt->header.checksum = acpi_checksum((u8 *)xsdt,
Cristian Măgherușan-Stanciuba482812011-07-02 00:57:07 +0300105 xsdt->header.length);
Stefan Reinauerc0ac7e92009-11-10 22:17:15 +0000106 }
107
Uwe Hermann622824c2010-11-19 15:14:42 +0000108 printk(BIOS_DEBUG, "ACPI: added table %d/%d, length now %d\n",
Cristian Măgherușan-Stanciuba482812011-07-02 00:57:07 +0300109 i + 1, entries_num, rsdt->header.length);
Stefan Reinauer688b3852004-01-28 16:56:14 +0000110}
111
Uwe Hermann622824c2010-11-19 15:14:42 +0000112int acpi_create_mcfg_mmconfig(acpi_mcfg_mmconfig_t *mmconfig, u32 base,
Cristian Măgherușan-Stanciuba482812011-07-02 00:57:07 +0300113 u16 seg_nr, u8 start, u8 end)
Stefan Reinauer26d431a2009-01-20 19:17:51 +0000114{
Rudolf Mareke6409f22007-11-03 12:50:26 +0000115 mmconfig->base_address = base;
116 mmconfig->base_reserved = 0;
117 mmconfig->pci_segment_group_number = seg_nr;
118 mmconfig->start_bus_number = start;
119 mmconfig->end_bus_number = end;
Uwe Hermann622824c2010-11-19 15:14:42 +0000120
121 return sizeof(acpi_mcfg_mmconfig_t);
Rudolf Mareke6409f22007-11-03 12:50:26 +0000122}
123
Stefan Reinauer777224c2005-01-19 14:06:41 +0000124int acpi_create_madt_lapic(acpi_madt_lapic_t *lapic, u8 cpu, u8 apic)
Stefan Reinauer06feb882004-02-03 16:11:35 +0000125{
Uwe Hermann622824c2010-11-19 15:14:42 +0000126 lapic->type = 0; /* Local APIC structure */
127 lapic->length = sizeof(acpi_madt_lapic_t);
128 lapic->flags = (1 << 0); /* Processor/LAPIC enabled */
129 lapic->processor_id = cpu;
130 lapic->apic_id = apic;
Stefan Reinauer14e22772010-04-27 06:56:47 +0000131
Uwe Hermann622824c2010-11-19 15:14:42 +0000132 return lapic->length;
Stefan Reinauer06feb882004-02-03 16:11:35 +0000133}
134
Stefan Reinauerda65fbf2009-04-22 08:18:37 +0000135unsigned long acpi_create_madt_lapics(unsigned long current)
136{
137 device_t cpu;
138 int cpu_index = 0;
139
Uwe Hermann622824c2010-11-19 15:14:42 +0000140 for (cpu = all_devices; cpu; cpu = cpu->next) {
Stefan Reinauerda65fbf2009-04-22 08:18:37 +0000141 if ((cpu->path.type != DEVICE_PATH_APIC) ||
Cristian Măgherușan-Stanciuba482812011-07-02 00:57:07 +0300142 (cpu->bus->dev->path.type != DEVICE_PATH_APIC_CLUSTER)) {
Stefan Reinauerda65fbf2009-04-22 08:18:37 +0000143 continue;
144 }
Uwe Hermann622824c2010-11-19 15:14:42 +0000145 if (!cpu->enabled)
Stefan Reinauerda65fbf2009-04-22 08:18:37 +0000146 continue;
Uwe Hermann622824c2010-11-19 15:14:42 +0000147 current += acpi_create_madt_lapic((acpi_madt_lapic_t *)current,
148 cpu_index, cpu->path.apic.apic_id);
Stefan Reinauerda65fbf2009-04-22 08:18:37 +0000149 cpu_index++;
150 }
Uwe Hermann622824c2010-11-19 15:14:42 +0000151
Stefan Reinauerda65fbf2009-04-22 08:18:37 +0000152 return current;
153}
154
Uwe Hermann622824c2010-11-19 15:14:42 +0000155int acpi_create_madt_ioapic(acpi_madt_ioapic_t *ioapic, u8 id, u32 addr,
Cristian Măgherușan-Stanciuba482812011-07-02 00:57:07 +0300156 u32 gsi_base)
Stefan Reinauer06feb882004-02-03 16:11:35 +0000157{
Uwe Hermann622824c2010-11-19 15:14:42 +0000158 ioapic->type = 1; /* I/O APIC structure */
159 ioapic->length = sizeof(acpi_madt_ioapic_t);
160 ioapic->reserved = 0x00;
161 ioapic->gsi_base = gsi_base;
162 ioapic->ioapic_id = id;
163 ioapic->ioapic_addr = addr;
Stefan Reinauer14e22772010-04-27 06:56:47 +0000164
Uwe Hermann622824c2010-11-19 15:14:42 +0000165 return ioapic->length;
Stefan Reinauer06feb882004-02-03 16:11:35 +0000166}
167
Stefan Reinauer777224c2005-01-19 14:06:41 +0000168int acpi_create_madt_irqoverride(acpi_madt_irqoverride_t *irqoverride,
Stefan Reinauer06feb882004-02-03 16:11:35 +0000169 u8 bus, u8 source, u32 gsirq, u16 flags)
170{
Uwe Hermann622824c2010-11-19 15:14:42 +0000171 irqoverride->type = 2; /* Interrupt source override */
172 irqoverride->length = sizeof(acpi_madt_irqoverride_t);
173 irqoverride->bus = bus;
174 irqoverride->source = source;
175 irqoverride->gsirq = gsirq;
176 irqoverride->flags = flags;
Stefan Reinauer14e22772010-04-27 06:56:47 +0000177
Uwe Hermann622824c2010-11-19 15:14:42 +0000178 return irqoverride->length;
Stefan Reinauer06feb882004-02-03 16:11:35 +0000179}
180
Stefan Reinauer777224c2005-01-19 14:06:41 +0000181int acpi_create_madt_lapic_nmi(acpi_madt_lapic_nmi_t *lapic_nmi, u8 cpu,
Cristian Măgherușan-Stanciuba482812011-07-02 00:57:07 +0300182 u16 flags, u8 lint)
Stefan Reinauer06feb882004-02-03 16:11:35 +0000183{
Uwe Hermann622824c2010-11-19 15:14:42 +0000184 lapic_nmi->type = 4; /* Local APIC NMI structure */
185 lapic_nmi->length = sizeof(acpi_madt_lapic_nmi_t);
186 lapic_nmi->flags = flags;
187 lapic_nmi->processor_id = cpu;
188 lapic_nmi->lint = lint;
Stefan Reinauer14e22772010-04-27 06:56:47 +0000189
Uwe Hermann622824c2010-11-19 15:14:42 +0000190 return lapic_nmi->length;
Stefan Reinauer06feb882004-02-03 16:11:35 +0000191}
192
Stefan Reinauer777224c2005-01-19 14:06:41 +0000193void acpi_create_madt(acpi_madt_t *madt)
Stefan Reinauer06feb882004-02-03 16:11:35 +0000194{
Uwe Hermann622824c2010-11-19 15:14:42 +0000195 acpi_header_t *header = &(madt->header);
196 unsigned long current = (unsigned long)madt + sizeof(acpi_madt_t);
Stefan Reinauer14e22772010-04-27 06:56:47 +0000197
Stefan Reinauer06feb882004-02-03 16:11:35 +0000198 memset((void *)madt, 0, sizeof(acpi_madt_t));
Stefan Reinauer14e22772010-04-27 06:56:47 +0000199
Uwe Hermann622824c2010-11-19 15:14:42 +0000200 /* Fill out header fields. */
Stefan Reinauercdfe3762009-07-21 22:15:43 +0000201 memcpy(header->signature, "APIC", 4);
Stefan Reinauer06feb882004-02-03 16:11:35 +0000202 memcpy(header->oem_id, OEM_ID, 6);
Stefan Reinauercdfe3762009-07-21 22:15:43 +0000203 memcpy(header->oem_table_id, ACPI_TABLE_CREATOR, 8);
Stefan Reinauer06feb882004-02-03 16:11:35 +0000204 memcpy(header->asl_compiler_id, ASLC, 4);
Stefan Reinauer14e22772010-04-27 06:56:47 +0000205
Stefan Reinauer06feb882004-02-03 16:11:35 +0000206 header->length = sizeof(acpi_madt_t);
Uwe Hermann622824c2010-11-19 15:14:42 +0000207 header->revision = 1; /* ACPI 1.0/2.0: 1, ACPI 3.0: 2, ACPI 4.0: 3 */
Stefan Reinauer06feb882004-02-03 16:11:35 +0000208
Uwe Hermann622824c2010-11-19 15:14:42 +0000209 madt->lapic_addr = LOCAL_APIC_ADDR;
210 madt->flags = 0x1; /* PCAT_COMPAT */
Stefan Reinauer06feb882004-02-03 16:11:35 +0000211
Stefan Reinauerf622d592005-11-26 16:56:05 +0000212 current = acpi_fill_madt(current);
Stefan Reinauer14e22772010-04-27 06:56:47 +0000213
Uwe Hermann622824c2010-11-19 15:14:42 +0000214 /* (Re)calculate length and checksum. */
215 header->length = current - (unsigned long)madt;
Stefan Reinauer14e22772010-04-27 06:56:47 +0000216
Uwe Hermann622824c2010-11-19 15:14:42 +0000217 header->checksum = acpi_checksum((void *)madt, header->length);
Stefan Reinauer06feb882004-02-03 16:11:35 +0000218}
219
Uwe Hermann622824c2010-11-19 15:14:42 +0000220/* MCFG is defined in the PCI Firmware Specification 3.0. */
Rudolf Mareke6409f22007-11-03 12:50:26 +0000221void acpi_create_mcfg(acpi_mcfg_t *mcfg)
222{
Uwe Hermann622824c2010-11-19 15:14:42 +0000223 acpi_header_t *header = &(mcfg->header);
224 unsigned long current = (unsigned long)mcfg + sizeof(acpi_mcfg_t);
Stefan Reinauer14e22772010-04-27 06:56:47 +0000225
Rudolf Mareke6409f22007-11-03 12:50:26 +0000226 memset((void *)mcfg, 0, sizeof(acpi_mcfg_t));
Stefan Reinauer14e22772010-04-27 06:56:47 +0000227
Uwe Hermann622824c2010-11-19 15:14:42 +0000228 /* Fill out header fields. */
Stefan Reinauercdfe3762009-07-21 22:15:43 +0000229 memcpy(header->signature, "MCFG", 4);
Rudolf Mareke6409f22007-11-03 12:50:26 +0000230 memcpy(header->oem_id, OEM_ID, 6);
Stefan Reinauercdfe3762009-07-21 22:15:43 +0000231 memcpy(header->oem_table_id, ACPI_TABLE_CREATOR, 8);
Rudolf Mareke6409f22007-11-03 12:50:26 +0000232 memcpy(header->asl_compiler_id, ASLC, 4);
Stefan Reinauer14e22772010-04-27 06:56:47 +0000233
Rudolf Mareke6409f22007-11-03 12:50:26 +0000234 header->length = sizeof(acpi_mcfg_t);
235 header->revision = 1;
236
237 current = acpi_fill_mcfg(current);
Stefan Reinauer14e22772010-04-27 06:56:47 +0000238
Uwe Hermann622824c2010-11-19 15:14:42 +0000239 /* (Re)calculate length and checksum. */
240 header->length = current - (unsigned long)mcfg;
241 header->checksum = acpi_checksum((void *)mcfg, header->length);
Rudolf Mareke6409f22007-11-03 12:50:26 +0000242}
243
Uwe Hermann622824c2010-11-19 15:14:42 +0000244/*
245 * This can be overriden by platform ACPI setup code, if it calls
246 * acpi_create_ssdt_generator().
Stefan Reinauerc0ac7e92009-11-10 22:17:15 +0000247 */
Uwe Hermann622824c2010-11-19 15:14:42 +0000248unsigned long __attribute__((weak)) acpi_fill_ssdt_generator(
249 unsigned long current, const char *oem_table_id)
250{
Rudolf Marek293b5f52009-02-01 18:35:15 +0000251 return current;
252}
253
Myles Watson3fe6b702009-10-09 20:13:43 +0000254void acpi_create_ssdt_generator(acpi_header_t *ssdt, const char *oem_table_id)
Rudolf Marek293b5f52009-02-01 18:35:15 +0000255{
Uwe Hermann622824c2010-11-19 15:14:42 +0000256 unsigned long current = (unsigned long)ssdt + sizeof(acpi_header_t);
257
Rudolf Marek293b5f52009-02-01 18:35:15 +0000258 memset((void *)ssdt, 0, sizeof(acpi_header_t));
Uwe Hermann622824c2010-11-19 15:14:42 +0000259
Stefan Reinauercdfe3762009-07-21 22:15:43 +0000260 memcpy(&ssdt->signature, "SSDT", 4);
Uwe Hermann622824c2010-11-19 15:14:42 +0000261 ssdt->revision = 2; /* ACPI 1.0/2.0: ?, ACPI 3.0/4.0: 2 */
Rudolf Marek293b5f52009-02-01 18:35:15 +0000262 memcpy(&ssdt->oem_id, OEM_ID, 6);
263 memcpy(&ssdt->oem_table_id, oem_table_id, 8);
264 ssdt->oem_revision = 42;
Uwe Hermann622824c2010-11-19 15:14:42 +0000265 memcpy(&ssdt->asl_compiler_id, ASLC, 4);
Rudolf Marek293b5f52009-02-01 18:35:15 +0000266 ssdt->asl_compiler_revision = 42;
267 ssdt->length = sizeof(acpi_header_t);
268
Stefan Reinauer8dcd50b2009-03-06 17:24:29 +0000269 acpigen_set_current((char *) current);
Rudolf Marek293b5f52009-02-01 18:35:15 +0000270 current = acpi_fill_ssdt_generator(current, oem_table_id);
271
Uwe Hermann622824c2010-11-19 15:14:42 +0000272 /* (Re)calculate length and checksum. */
Rudolf Marek293b5f52009-02-01 18:35:15 +0000273 ssdt->length = current - (unsigned long)ssdt;
274 ssdt->checksum = acpi_checksum((void *)ssdt, ssdt->length);
275}
276
Stefan Reinauerf622d592005-11-26 16:56:05 +0000277int acpi_create_srat_lapic(acpi_srat_lapic_t *lapic, u8 node, u8 apic)
278{
Myles Watson0b4c9f02009-03-10 18:06:47 +0000279 memset((void *)lapic, 0, sizeof(acpi_srat_lapic_t));
Stefan Reinauerf622d592005-11-26 16:56:05 +0000280
Uwe Hermann622824c2010-11-19 15:14:42 +0000281 lapic->type = 0; /* Processor local APIC/SAPIC affinity structure */
282 lapic->length = sizeof(acpi_srat_lapic_t);
283 lapic->flags = (1 << 0); /* Enabled (the use of this structure). */
284 lapic->proximity_domain_7_0 = node;
285 /* TODO: proximity_domain_31_8, local SAPIC EID, clock domain. */
286 lapic->apic_id = apic;
Stefan Reinauerf622d592005-11-26 16:56:05 +0000287
Uwe Hermann622824c2010-11-19 15:14:42 +0000288 return lapic->length;
Stefan Reinauerf622d592005-11-26 16:56:05 +0000289}
290
Uwe Hermann622824c2010-11-19 15:14:42 +0000291int acpi_create_srat_mem(acpi_srat_mem_t *mem, u8 node, u32 basek, u32 sizek,
Cristian Măgherușan-Stanciuba482812011-07-02 00:57:07 +0300292 u32 flags)
Stefan Reinauerf622d592005-11-26 16:56:05 +0000293{
Uwe Hermann622824c2010-11-19 15:14:42 +0000294 mem->type = 1; /* Memory affinity structure */
295 mem->length = sizeof(acpi_srat_mem_t);
296 mem->base_address_low = (basek << 10);
297 mem->base_address_high = (basek >> (32 - 10));
298 mem->length_low = (sizek << 10);
299 mem->length_high = (sizek >> (32 - 10));
300 mem->proximity_domain = node;
Stefan Reinauer14e22772010-04-27 06:56:47 +0000301 mem->flags = flags;
Stefan Reinauerf622d592005-11-26 16:56:05 +0000302
Uwe Hermann622824c2010-11-19 15:14:42 +0000303 return mem->length;
Stefan Reinauerf622d592005-11-26 16:56:05 +0000304}
305
Uwe Hermann622824c2010-11-19 15:14:42 +0000306/* http://www.microsoft.com/whdc/system/sysinternals/sratdwn.mspx */
Stefan Reinauerf622d592005-11-26 16:56:05 +0000307void acpi_create_srat(acpi_srat_t *srat)
308{
Uwe Hermann622824c2010-11-19 15:14:42 +0000309 acpi_header_t *header = &(srat->header);
310 unsigned long current = (unsigned long)srat + sizeof(acpi_srat_t);
Stefan Reinauerf622d592005-11-26 16:56:05 +0000311
Uwe Hermann622824c2010-11-19 15:14:42 +0000312 memset((void *)srat, 0, sizeof(acpi_srat_t));
Stefan Reinauerf622d592005-11-26 16:56:05 +0000313
Uwe Hermann622824c2010-11-19 15:14:42 +0000314 /* Fill out header fields. */
315 memcpy(header->signature, "SRAT", 4);
316 memcpy(header->oem_id, OEM_ID, 6);
317 memcpy(header->oem_table_id, ACPI_TABLE_CREATOR, 8);
318 memcpy(header->asl_compiler_id, ASLC, 4);
Stefan Reinauerf622d592005-11-26 16:56:05 +0000319
Uwe Hermann622824c2010-11-19 15:14:42 +0000320 header->length = sizeof(acpi_srat_t);
321 header->revision = 1; /* ACPI 1.0: N/A, 2.0: 1, 3.0: 2, 4.0: 3 */
Stefan Reinauerf622d592005-11-26 16:56:05 +0000322
Uwe Hermann622824c2010-11-19 15:14:42 +0000323 srat->resv = 1; /* Spec: Reserved to 1 for backwards compatibility. */
Stefan Reinauerf622d592005-11-26 16:56:05 +0000324
Uwe Hermann622824c2010-11-19 15:14:42 +0000325 current = acpi_fill_srat(current);
Stefan Reinauerf622d592005-11-26 16:56:05 +0000326
Uwe Hermann622824c2010-11-19 15:14:42 +0000327 /* (Re)calculate length and checksum. */
328 header->length = current - (unsigned long)srat;
329 header->checksum = acpi_checksum((void *)srat, header->length);
Stefan Reinauerf622d592005-11-26 16:56:05 +0000330}
331
Uwe Hermann622824c2010-11-19 15:14:42 +0000332/* http://h21007.www2.hp.com/portal/download/files/unprot/Itanium/slit.pdf */
Yinghai Lud4b278c2006-10-04 20:46:15 +0000333void acpi_create_slit(acpi_slit_t *slit)
334{
Uwe Hermann622824c2010-11-19 15:14:42 +0000335 acpi_header_t *header = &(slit->header);
336 unsigned long current = (unsigned long)slit + sizeof(acpi_slit_t);
Yinghai Lud4b278c2006-10-04 20:46:15 +0000337
Uwe Hermann622824c2010-11-19 15:14:42 +0000338 memset((void *)slit, 0, sizeof(acpi_slit_t));
Yinghai Lud4b278c2006-10-04 20:46:15 +0000339
Uwe Hermann622824c2010-11-19 15:14:42 +0000340 /* Fill out header fields. */
341 memcpy(header->signature, "SLIT", 4);
342 memcpy(header->oem_id, OEM_ID, 6);
343 memcpy(header->oem_table_id, ACPI_TABLE_CREATOR, 8);
344 memcpy(header->asl_compiler_id, ASLC, 4);
Yinghai Lud4b278c2006-10-04 20:46:15 +0000345
Uwe Hermann622824c2010-11-19 15:14:42 +0000346 header->length = sizeof(acpi_slit_t);
347 header->revision = 1; /* ACPI 1.0: N/A, ACPI 2.0/3.0/4.0: 1 */
Yinghai Lud4b278c2006-10-04 20:46:15 +0000348
Uwe Hermann622824c2010-11-19 15:14:42 +0000349 current = acpi_fill_slit(current);
Yinghai Lud4b278c2006-10-04 20:46:15 +0000350
Uwe Hermann622824c2010-11-19 15:14:42 +0000351 /* (Re)calculate length and checksum. */
352 header->length = current - (unsigned long)slit;
353 header->checksum = acpi_checksum((void *)slit, header->length);
Yinghai Lud4b278c2006-10-04 20:46:15 +0000354}
355
Uwe Hermann622824c2010-11-19 15:14:42 +0000356/* http://www.intel.com/hardwaredesign/hpetspec_1.pdf */
Stefan Reinauer777224c2005-01-19 14:06:41 +0000357void acpi_create_hpet(acpi_hpet_t *hpet)
Stefan Reinauer688b3852004-01-28 16:56:14 +0000358{
Uwe Hermann622824c2010-11-19 15:14:42 +0000359#define HPET_ADDR 0xfed00000ULL
360 acpi_header_t *header = &(hpet->header);
361 acpi_addr_t *addr = &(hpet->addr);
Stefan Reinauer14e22772010-04-27 06:56:47 +0000362
Stefan Reinauera7648c22004-01-29 17:31:34 +0000363 memset((void *)hpet, 0, sizeof(acpi_hpet_t));
Stefan Reinauer14e22772010-04-27 06:56:47 +0000364
Uwe Hermann622824c2010-11-19 15:14:42 +0000365 /* Fill out header fields. */
Stefan Reinauer4704dc52009-07-22 01:11:37 +0000366 memcpy(header->signature, "HPET", 4);
Stefan Reinauer688b3852004-01-28 16:56:14 +0000367 memcpy(header->oem_id, OEM_ID, 6);
Stefan Reinauercdfe3762009-07-21 22:15:43 +0000368 memcpy(header->oem_table_id, ACPI_TABLE_CREATOR, 8);
Stefan Reinauer688b3852004-01-28 16:56:14 +0000369 memcpy(header->asl_compiler_id, ASLC, 4);
Stefan Reinauer14e22772010-04-27 06:56:47 +0000370
Stefan Reinauer688b3852004-01-28 16:56:14 +0000371 header->length = sizeof(acpi_hpet_t);
Uwe Hermann622824c2010-11-19 15:14:42 +0000372 header->revision = 1; /* Currently 1. Table added in ACPI 2.0. */
Stefan Reinauer688b3852004-01-28 16:56:14 +0000373
Uwe Hermann622824c2010-11-19 15:14:42 +0000374 /* Fill out HPET address. */
375 addr->space_id = 0; /* Memory */
376 addr->bit_width = 64;
377 addr->bit_offset = 0;
378 addr->addrl = HPET_ADDR & 0xffffffff;
379 addr->addrh = HPET_ADDR >> 32;
Stefan Reinauer688b3852004-01-28 16:56:14 +0000380
Uwe Hermann622824c2010-11-19 15:14:42 +0000381 hpet->id = 0x102282a0; /* AMD! FIXME */
382 hpet->number = 0;
383 hpet->min_tick = 4096;
Stefan Reinauer14e22772010-04-27 06:56:47 +0000384
Uwe Hermann622824c2010-11-19 15:14:42 +0000385 header->checksum = acpi_checksum((void *)hpet, sizeof(acpi_hpet_t));
Stefan Reinauer688b3852004-01-28 16:56:14 +0000386}
Uwe Hermann622824c2010-11-19 15:14:42 +0000387
Stefan Reinauer777224c2005-01-19 14:06:41 +0000388void acpi_create_facs(acpi_facs_t *facs)
Ronald G. Minnich02fa3b22004-10-06 17:33:54 +0000389{
Uwe Hermann622824c2010-11-19 15:14:42 +0000390 memset((void *)facs, 0, sizeof(acpi_facs_t));
Ronald G. Minnich02fa3b22004-10-06 17:33:54 +0000391
Stefan Reinauercdfe3762009-07-21 22:15:43 +0000392 memcpy(facs->signature, "FACS", 4);
Ronald G. Minnich02fa3b22004-10-06 17:33:54 +0000393 facs->length = sizeof(acpi_facs_t);
394 facs->hardware_signature = 0;
395 facs->firmware_waking_vector = 0;
396 facs->global_lock = 0;
397 facs->flags = 0;
398 facs->x_firmware_waking_vector_l = 0;
399 facs->x_firmware_waking_vector_h = 0;
Uwe Hermann622824c2010-11-19 15:14:42 +0000400 facs->version = 1; /* ACPI 1.0: 0, ACPI 2.0/3.0: 1, ACPI 4.0: 2 */
Ronald G. Minnich02fa3b22004-10-06 17:33:54 +0000401}
Stefan Reinauer777224c2005-01-19 14:06:41 +0000402
403void acpi_write_rsdt(acpi_rsdt_t *rsdt)
Stefan Reinauer14e22772010-04-27 06:56:47 +0000404{
Uwe Hermann622824c2010-11-19 15:14:42 +0000405 acpi_header_t *header = &(rsdt->header);
Stefan Reinauer14e22772010-04-27 06:56:47 +0000406
Uwe Hermann622824c2010-11-19 15:14:42 +0000407 /* Fill out header fields. */
Stefan Reinauercdfe3762009-07-21 22:15:43 +0000408 memcpy(header->signature, "RSDT", 4);
Stefan Reinauer688b3852004-01-28 16:56:14 +0000409 memcpy(header->oem_id, OEM_ID, 6);
Stefan Reinauercdfe3762009-07-21 22:15:43 +0000410 memcpy(header->oem_table_id, ACPI_TABLE_CREATOR, 8);
Stefan Reinauer688b3852004-01-28 16:56:14 +0000411 memcpy(header->asl_compiler_id, ASLC, 4);
Stefan Reinauer14e22772010-04-27 06:56:47 +0000412
Stefan Reinauer688b3852004-01-28 16:56:14 +0000413 header->length = sizeof(acpi_rsdt_t);
Uwe Hermann622824c2010-11-19 15:14:42 +0000414 header->revision = 1; /* ACPI 1.0/2.0/3.0/4.0: 1 */
Stefan Reinauer14e22772010-04-27 06:56:47 +0000415
Uwe Hermann622824c2010-11-19 15:14:42 +0000416 /* Entries are filled in later, we come with an empty set. */
Stefan Reinauer688b3852004-01-28 16:56:14 +0000417
Uwe Hermann622824c2010-11-19 15:14:42 +0000418 /* Fix checksum. */
Stefan Reinauerb657a3c2009-07-21 21:38:33 +0000419 header->checksum = acpi_checksum((void *)rsdt, sizeof(acpi_rsdt_t));
Stefan Reinauer688b3852004-01-28 16:56:14 +0000420}
421
Stefan Reinauerb657a3c2009-07-21 21:38:33 +0000422void acpi_write_xsdt(acpi_xsdt_t *xsdt)
Stefan Reinauer14e22772010-04-27 06:56:47 +0000423{
Uwe Hermann622824c2010-11-19 15:14:42 +0000424 acpi_header_t *header = &(xsdt->header);
Stefan Reinauer14e22772010-04-27 06:56:47 +0000425
Uwe Hermann622824c2010-11-19 15:14:42 +0000426 /* Fill out header fields. */
Stefan Reinauercdfe3762009-07-21 22:15:43 +0000427 memcpy(header->signature, "XSDT", 4);
Stefan Reinauerb657a3c2009-07-21 21:38:33 +0000428 memcpy(header->oem_id, OEM_ID, 6);
Stefan Reinauercdfe3762009-07-21 22:15:43 +0000429 memcpy(header->oem_table_id, ACPI_TABLE_CREATOR, 8);
Stefan Reinauerb657a3c2009-07-21 21:38:33 +0000430 memcpy(header->asl_compiler_id, ASLC, 4);
Stefan Reinauer14e22772010-04-27 06:56:47 +0000431
Stefan Reinauerb657a3c2009-07-21 21:38:33 +0000432 header->length = sizeof(acpi_xsdt_t);
Uwe Hermann622824c2010-11-19 15:14:42 +0000433 header->revision = 1; /* ACPI 1.0: N/A, 2.0/3.0/4.0: 1 */
Stefan Reinauer14e22772010-04-27 06:56:47 +0000434
Uwe Hermann622824c2010-11-19 15:14:42 +0000435 /* Entries are filled in later, we come with an empty set. */
Stefan Reinauerb657a3c2009-07-21 21:38:33 +0000436
Uwe Hermann622824c2010-11-19 15:14:42 +0000437 /* Fix checksum. */
Stefan Reinauerb657a3c2009-07-21 21:38:33 +0000438 header->checksum = acpi_checksum((void *)xsdt, sizeof(acpi_xsdt_t));
439}
440
441void acpi_write_rsdp(acpi_rsdp_t *rsdp, acpi_rsdt_t *rsdt, acpi_xsdt_t *xsdt)
Stefan Reinauer688b3852004-01-28 16:56:14 +0000442{
Stefan Reinauerd18faac2009-11-05 18:06:43 +0000443 memset(rsdp, 0, sizeof(acpi_rsdp_t));
Uwe Hermann622824c2010-11-19 15:14:42 +0000444
Stefan Reinauer688b3852004-01-28 16:56:14 +0000445 memcpy(rsdp->signature, RSDP_SIG, 8);
446 memcpy(rsdp->oem_id, OEM_ID, 6);
Uwe Hermann622824c2010-11-19 15:14:42 +0000447
448 rsdp->length = sizeof(acpi_rsdp_t);
449 rsdp->rsdt_address = (u32)rsdt;
450
451 /*
452 * Revision: ACPI 1.0: 0, ACPI 2.0/3.0/4.0: 2.
453 *
454 * Some OSes expect an XSDT to be present for RSD PTR revisions >= 2.
455 * If we don't have an ACPI XSDT, force ACPI 1.0 (and thus RSD PTR
456 * revision 0).
Stefan Reinauerb657a3c2009-07-21 21:38:33 +0000457 */
458 if (xsdt == NULL) {
Uwe Hermann622824c2010-11-19 15:14:42 +0000459 rsdp->revision = 0;
Stefan Reinauerb657a3c2009-07-21 21:38:33 +0000460 } else {
Uwe Hermann622824c2010-11-19 15:14:42 +0000461 rsdp->xsdt_address = (u64)(u32)xsdt;
462 rsdp->revision = 2;
Stefan Reinauerb657a3c2009-07-21 21:38:33 +0000463 }
Uwe Hermann622824c2010-11-19 15:14:42 +0000464
465 /* Calculate checksums. */
466 rsdp->checksum = acpi_checksum((void *)rsdp, 20);
467 rsdp->ext_checksum = acpi_checksum((void *)rsdp, sizeof(acpi_rsdp_t));
Stefan Reinauer688b3852004-01-28 16:56:14 +0000468}
469
zbaocaf494c82012-04-13 13:57:14 +0800470unsigned long __attribute__((weak)) acpi_fill_hest(acpi_hest_t *hest)
471{
472 return (unsigned long)hest;
473}
474
475unsigned long acpi_create_hest_error_source(acpi_hest_t *hest, acpi_hest_esd_t *esd, u16 type, void *data, u16 data_len)
476{
477 acpi_header_t *header = &(hest->header);
478 acpi_hest_hen_t *hen;
479 void *pos;
480 u16 len;
481
482 pos = esd;
483 memset(pos, 0, sizeof(acpi_hest_esd_t));
484 len = 0;
485 esd->type = type; /* MCE */
486 esd->source_id = hest->error_source_count;
487 esd->flags = 0; /* FIRMWARE_FIRST */
488 esd->enabled = 1;
489 esd->prealloc_erecords = 1;
490 esd->max_section_per_record = 0x1;
491
492 len += sizeof(acpi_hest_esd_t);
493 pos = esd + 1;
494
495 switch (type) {
496 case 0: /* MCE */
497 break;
498 case 1: /* CMC */
499 hen = (acpi_hest_hen_t *) (pos);
500 memset(pos, 0, sizeof(acpi_hest_hen_t));
501 hen->type = 3; /* SCI? */
502 hen->length = sizeof(acpi_hest_hen_t);
503 hen->conf_we = 0; /* Configuration Write Enable. */
504 hen->poll_interval = 0;
505 hen->vector = 0;
506 hen->sw2poll_threshold_val = 0;
507 hen->sw2poll_threshold_win = 0;
508 hen->error_threshold_val = 0;
509 hen->error_threshold_win = 0;
510 len += sizeof(acpi_hest_hen_t);
511 pos = hen + 1;
512 break;
513 case 2: /* NMI */
514 case 6: /* AER Root Port */
515 case 7: /* AER Endpoint */
516 case 8: /* AER Bridge */
517 case 9: /* Generic Hardware Error Source. */
518 /* TODO: */
519 break;
520 default:
521 printk(BIOS_DEBUG, "Invalid type of Error Source.");
522 break;
523 }
524 hest->error_source_count ++;
525
526 memcpy(pos, data, data_len);
527 len += data_len;
528 header->length += len;
529
530 return len;
531}
532
533/* ACPI 4.0 */
534void acpi_write_hest(acpi_hest_t *hest)
535{
536 acpi_header_t *header = &(hest->header);
537
538 memset(hest, 0, sizeof(acpi_hest_t));
539
540 memcpy(header->signature, "HEST", 4);
541 memcpy(header->oem_id, OEM_ID, 6);
542 memcpy(header->oem_table_id, ACPI_TABLE_CREATOR, 8);
543 memcpy(header->asl_compiler_id, ASLC, 4);
544 header->length += sizeof(acpi_hest_t);
545 header->revision = 1;
546
547 acpi_fill_hest(hest);
548
549 /* Calculate checksums. */
550 header->checksum = acpi_checksum((void *)hest, header->length);
551}
552
Stefan Reinauer08670622009-06-30 15:17:49 +0000553#if CONFIG_HAVE_ACPI_RESUME == 1
Stefan Reinauer7e9771c2009-04-22 08:17:38 +0000554void suspend_resume(void)
555{
556 void *wake_vec;
557
Uwe Hermann622824c2010-11-19 15:14:42 +0000558 /* If we happen to be resuming find wakeup vector and jump to OS. */
Stefan Reinauer7e9771c2009-04-22 08:17:38 +0000559 wake_vec = acpi_find_wakeup_vector();
Stefan Reinauercb91e152012-04-03 23:28:22 +0200560 if (wake_vec) {
561 /* Call mainboard resume handler first, if defined. */
562 if (mainboard_suspend_resume)
563 mainboard_suspend_resume();
Stefan Reinauer7e9771c2009-04-22 08:17:38 +0000564 acpi_jump_to_wakeup(wake_vec);
Stefan Reinauercb91e152012-04-03 23:28:22 +0200565 }
Stefan Reinauer7e9771c2009-04-22 08:17:38 +0000566}
567
Uwe Hermann622824c2010-11-19 15:14:42 +0000568/* This is to be filled by SB code - startup value what was found. */
Stefan Reinauer7e9771c2009-04-22 08:17:38 +0000569u8 acpi_slp_type = 0;
Stefan Reinauer688b3852004-01-28 16:56:14 +0000570
Stefan Reinauerde3206a2010-02-22 06:09:43 +0000571static int acpi_is_wakeup(void)
Rudolf Marek33cafe52009-04-13 18:07:02 +0000572{
Tobias Diedrich4e22a3b2010-12-13 22:39:46 +0100573 /* Both resume from S2 and resume from S3 restart at CPU reset */
574 return (acpi_slp_type == 3 || acpi_slp_type == 2);
Rudolf Marek33cafe52009-04-13 18:07:02 +0000575}
576
577static acpi_rsdp_t *valid_rsdp(acpi_rsdp_t *rsdp)
578{
579 if (strncmp((char *)rsdp, RSDP_SIG, sizeof(RSDP_SIG) - 1) != 0)
580 return NULL;
581
Stefan Reinauerc02b4fc2010-03-22 11:42:32 +0000582 printk(BIOS_DEBUG, "Looking on %p for valid checksum\n", rsdp);
Rudolf Marek33cafe52009-04-13 18:07:02 +0000583
584 if (acpi_checksum((void *)rsdp, 20) != 0)
585 return NULL;
Stefan Reinauerc02b4fc2010-03-22 11:42:32 +0000586 printk(BIOS_DEBUG, "Checksum 1 passed\n");
Rudolf Marek33cafe52009-04-13 18:07:02 +0000587
588 if ((rsdp->revision > 1) && (acpi_checksum((void *)rsdp,
589 rsdp->length) != 0))
590 return NULL;
Stefan Reinauerc02b4fc2010-03-22 11:42:32 +0000591 printk(BIOS_DEBUG, "Checksum 2 passed all OK\n");
Rudolf Marek33cafe52009-04-13 18:07:02 +0000592
593 return rsdp;
594}
595
596static acpi_rsdp_t *rsdp;
597
598void *acpi_get_wakeup_rsdp(void)
599{
600 return rsdp;
601}
602
603void *acpi_find_wakeup_vector(void)
604{
605 char *p, *end;
Rudolf Marek33cafe52009-04-13 18:07:02 +0000606 acpi_rsdt_t *rsdt;
607 acpi_facs_t *facs;
608 acpi_fadt_t *fadt;
Uwe Hermann622824c2010-11-19 15:14:42 +0000609 void *wake_vec;
Rudolf Marek33cafe52009-04-13 18:07:02 +0000610 int i;
611
612 rsdp = NULL;
613
614 if (!acpi_is_wakeup())
615 return NULL;
616
Uwe Hermann622824c2010-11-19 15:14:42 +0000617 printk(BIOS_DEBUG, "Trying to find the wakeup vector...\n");
Rudolf Marek33cafe52009-04-13 18:07:02 +0000618
Uwe Hermann622824c2010-11-19 15:14:42 +0000619 /* Find RSDP. */
620 for (p = (char *)0xe0000; p < (char *)0xfffff; p += 16) {
621 if ((rsdp = valid_rsdp((acpi_rsdp_t *)p)))
Rudolf Marek33cafe52009-04-13 18:07:02 +0000622 break;
623 }
624
625 if (rsdp == NULL)
626 return NULL;
627
Stefan Reinauerc02b4fc2010-03-22 11:42:32 +0000628 printk(BIOS_DEBUG, "RSDP found at %p\n", rsdp);
Rudolf Marek33cafe52009-04-13 18:07:02 +0000629 rsdt = (acpi_rsdt_t *) rsdp->rsdt_address;
Stefan Reinauer14e22772010-04-27 06:56:47 +0000630
Uwe Hermann622824c2010-11-19 15:14:42 +0000631 end = (char *)rsdt + rsdt->header.length;
Stefan Reinauerc02b4fc2010-03-22 11:42:32 +0000632 printk(BIOS_DEBUG, "RSDT found at %p ends at %p\n", rsdt, end);
Rudolf Marek33cafe52009-04-13 18:07:02 +0000633
Uwe Hermann622824c2010-11-19 15:14:42 +0000634 for (i = 0; ((char *)&rsdt->entry[i]) < end; i++) {
635 fadt = (acpi_fadt_t *)rsdt->entry[i];
Stefan Reinauercdfe3762009-07-21 22:15:43 +0000636 if (strncmp((char *)fadt, "FACP", 4) == 0)
Rudolf Marek33cafe52009-04-13 18:07:02 +0000637 break;
638 fadt = NULL;
639 }
640
641 if (fadt == NULL)
642 return NULL;
643
Stefan Reinauerc02b4fc2010-03-22 11:42:32 +0000644 printk(BIOS_DEBUG, "FADT found at %p\n", fadt);
Stefan Reinauer69390db2009-05-26 12:33:52 +0000645 facs = (acpi_facs_t *)fadt->firmware_ctrl;
Rudolf Marek33cafe52009-04-13 18:07:02 +0000646
Stefan Reinauer7e9771c2009-04-22 08:17:38 +0000647 if (facs == NULL) {
Uwe Hermann622824c2010-11-19 15:14:42 +0000648 printk(BIOS_DEBUG, "No FACS found, wake up from S3 not "
649 "possible.\n");
Rudolf Marek33cafe52009-04-13 18:07:02 +0000650 return NULL;
Stefan Reinauer7e9771c2009-04-22 08:17:38 +0000651 }
Rudolf Marek33cafe52009-04-13 18:07:02 +0000652
Stefan Reinauerc02b4fc2010-03-22 11:42:32 +0000653 printk(BIOS_DEBUG, "FACS found at %p\n", facs);
Uwe Hermann622824c2010-11-19 15:14:42 +0000654 wake_vec = (void *)facs->firmware_waking_vector;
Stefan Reinauerc02b4fc2010-03-22 11:42:32 +0000655 printk(BIOS_DEBUG, "OS waking vector is %p\n", wake_vec);
Uwe Hermann622824c2010-11-19 15:14:42 +0000656
Rudolf Marek33cafe52009-04-13 18:07:02 +0000657 return wake_vec;
658}
659
Tobias Diedrich4e22a3b2010-12-13 22:39:46 +0100660#if CONFIG_SMP
Rudolf Marek33cafe52009-04-13 18:07:02 +0000661extern char *lowmem_backup;
662extern char *lowmem_backup_ptr;
663extern int lowmem_backup_size;
Tobias Diedrich4e22a3b2010-12-13 22:39:46 +0100664#endif
Rudolf Marek33cafe52009-04-13 18:07:02 +0000665
Uwe Hermann622824c2010-11-19 15:14:42 +0000666#define WAKEUP_BASE 0x600
Stefan Reinauerc0ac7e92009-11-10 22:17:15 +0000667
Uwe Hermann622824c2010-11-19 15:14:42 +0000668void (*acpi_do_wakeup)(u32 vector, u32 backup_source, u32 backup_target,
669 u32 backup_size) __attribute__((regparm(0))) = (void *)WAKEUP_BASE;
Stefan Reinauerc0ac7e92009-11-10 22:17:15 +0000670
671extern unsigned char __wakeup, __wakeup_size;
672
Rudolf Marek33cafe52009-04-13 18:07:02 +0000673void acpi_jump_to_wakeup(void *vector)
674{
Uwe Hermann622824c2010-11-19 15:14:42 +0000675 u32 acpi_backup_memory = (u32)cbmem_find(CBMEM_ID_RESUME);
Stefan Reinauerc0ac7e92009-11-10 22:17:15 +0000676
677 if (!acpi_backup_memory) {
Uwe Hermann622824c2010-11-19 15:14:42 +0000678 printk(BIOS_WARNING, "ACPI: Backup memory missing. "
679 "No S3 resume.\n");
Stefan Reinauerc0ac7e92009-11-10 22:17:15 +0000680 return;
681 }
682
Tobias Diedrich4e22a3b2010-12-13 22:39:46 +0100683#if CONFIG_SMP
Uwe Hermann622824c2010-11-19 15:14:42 +0000684 // FIXME: This should go into the ACPI backup memory, too. No pork saussages.
685 /*
686 * Just restore the SMP trampoline and continue with wakeup on
687 * assembly level.
688 */
Rudolf Marek33cafe52009-04-13 18:07:02 +0000689 memcpy(lowmem_backup_ptr, lowmem_backup, lowmem_backup_size);
Tobias Diedrich4e22a3b2010-12-13 22:39:46 +0100690#endif
Stefan Reinauerc0ac7e92009-11-10 22:17:15 +0000691
Uwe Hermann622824c2010-11-19 15:14:42 +0000692 /* Copy wakeup trampoline in place. */
Stefan Reinauerde3206a2010-02-22 06:09:43 +0000693 memcpy((void *)WAKEUP_BASE, &__wakeup, (size_t)&__wakeup_size);
Stefan Reinauerc0ac7e92009-11-10 22:17:15 +0000694
Duncan Lauriecde78012011-10-19 15:32:39 -0700695#if CONFIG_COLLECT_TIMESTAMPS
696 timestamp_add_now(TS_ACPI_WAKE_JUMP);
697#endif
698
Uwe Hermann622824c2010-11-19 15:14:42 +0000699 acpi_do_wakeup((u32)vector, acpi_backup_memory, CONFIG_RAMBASE,
700 HIGH_MEMORY_SAVE);
Rudolf Marek33cafe52009-04-13 18:07:02 +0000701}
702#endif