2 * This file is part of the coreboot project.
4 * Copyright (C) 2011 Advanced Micro Devices, Inc.
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; version 2 of the License.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
20 #include <console/console.h>
22 #include <arch/acpi.h>
23 #include <arch/ioapic.h>
24 #include <device/pci.h>
25 #include <device/pci_ids.h>
26 #include <cpu/x86/msr.h>
27 #include "agesawrapper.h"
28 #include <cpu/amd/mtrr.h>
29 #include <cpu/amd/amdfam14.h>
31 #define DUMP_ACPI_TABLES 0
33 #if DUMP_ACPI_TABLES == 1
35 static void dump_mem(u32 start, u32 end)
39 print_debug("dump_mem:");
40 for (i = start; i < end; i++) {
42 printk(BIOS_DEBUG, "\n%08x:", i);
44 printk(BIOS_DEBUG, " %02x", (u8)*((u8 *)i));
50 extern const unsigned char AmlCode[];
52 unsigned long acpi_fill_ssdt_generator(unsigned long current, const char *oem_table_id)
56 char pscope[] = "\\_SB.PCI0";
58 lens = acpigen_write_scope(pscope);
60 lens += acpigen_write_name_dword("TOM1", msr.lo);
61 msr = rdmsr(TOP_MEM2);
63 * Since XP only implements parts of ACPI 2.0, we can't use a qword
65 * See http://www.acpi.info/presentations/S01USMOBS169_OS%2520new.ppt
67 * Shift value right by 20 bit to make it fit into 32bit,
68 * giving us 1MB granularity and a limit of almost 4Exabyte of memory.
70 lens += acpigen_write_name_dword("TOM2", (msr.hi << 12) | msr.lo >> 20);
71 acpigen_patch_len(lens - 1);
72 return (unsigned long) (acpigen_get_current());
75 unsigned long acpi_fill_mcfg(unsigned long current)
81 unsigned long acpi_fill_madt(unsigned long current)
83 /* create all subtables for processors */
84 current = acpi_create_madt_lapics(current);
86 /* Write SB800 IOAPIC, only one */
87 current += acpi_create_madt_ioapic((acpi_madt_ioapic_t *) current,
88 CONFIG_MAX_CPUS, IO_APIC_ADDR, 0);
90 current += acpi_create_madt_irqoverride((acpi_madt_irqoverride_t *)
92 current += acpi_create_madt_irqoverride((acpi_madt_irqoverride_t *)
93 current, 0, 9, 9, 0xF);
95 /* 0: mean bus 0--->ISA */
98 /* 5 mean: 0101 --> Edige-triggered, Active high */
100 /* create all subtables for processors */
101 /* current = acpi_create_madt_lapic_nmis(current, 5, 1); */
102 /* 1: LINT1 connect to NMI */
107 unsigned long acpi_fill_slit(unsigned long current)
113 unsigned long acpi_fill_srat(unsigned long current)
115 /* No NUMA, no SRAT */
119 unsigned long write_acpi_tables(unsigned long start)
121 unsigned long current;
132 acpi_header_t *ssdt2;
134 get_bus_conf(); /* it will get sblk, pci1234, hcdn, and sbdn */
136 /* Align ACPI tables to 16 bytes */
137 start = (start + 0x0f) & -0x10;
140 printk(BIOS_INFO, "ACPI: Writing ACPI tables at %lx...\n", start);
142 /* We need at least an RSDP and an RSDT Table */
143 rsdp = (acpi_rsdp_t *) current;
144 current += sizeof(acpi_rsdp_t);
145 rsdt = (acpi_rsdt_t *) current;
146 current += sizeof(acpi_rsdt_t);
148 /* clear all table memory */
149 memset((void *)start, 0, current - start);
151 acpi_write_rsdp(rsdp, rsdt, NULL);
152 acpi_write_rsdt(rsdt);
155 current = ( current + 0x07) & -0x08;
156 printk(BIOS_DEBUG, "ACPI: * DSDT at %lx\n", current);
157 dsdt = (acpi_header_t *)current;
158 memcpy(dsdt, &AmlCode, sizeof(acpi_header_t));
159 current += dsdt->length;
160 memcpy(dsdt, &AmlCode, dsdt->length);
161 printk(BIOS_DEBUG, "ACPI: * DSDT @ %p Length %x\n",dsdt,dsdt->length);
163 /* FACS */ // it needs 64 bit alignment
164 current = ( current + 0x07) & -0x08;
165 printk(BIOS_DEBUG, "ACPI: * FACS at %lx\n", current);
166 facs = (acpi_facs_t *) current;
167 current += sizeof(acpi_facs_t);
168 acpi_create_facs(facs);
171 current = ( current + 0x07) & -0x08;
172 printk(BIOS_DEBUG, "ACPI: * FADT at %lx\n", current);
173 fadt = (acpi_fadt_t *) current;
174 current += sizeof(acpi_fadt_t);
176 acpi_create_fadt(fadt, facs, dsdt);
177 acpi_add_table(rsdp, fadt);
180 * We explicitly add these tables later on:
182 current = ( current + 0x07) & -0x08;
183 printk(BIOS_DEBUG, "ACPI: * HPET at %lx\n", current);
184 hpet = (acpi_hpet_t *) current;
185 current += sizeof(acpi_hpet_t);
186 acpi_create_hpet(hpet);
187 acpi_add_table(rsdp, hpet);
189 /* If we want to use HPET Timers Linux wants an MADT */
190 current = ( current + 0x07) & -0x08;
191 printk(BIOS_DEBUG, "ACPI: * MADT at %lx\n",current);
192 madt = (acpi_madt_t *) current;
193 acpi_create_madt(madt);
194 current += madt->header.length;
195 acpi_add_table(rsdp, madt);
198 current = ( current + 0x07) & -0x08;
199 printk(BIOS_DEBUG, "ACPI: * SRAT at %lx\n", current);
200 srat = (acpi_srat_t *) agesawrapper_getlateinitptr (PICK_SRAT);
202 memcpy((void *)current, srat, srat->header.length);
203 srat = (acpi_srat_t *) current;
204 current += srat->header.length;
205 acpi_add_table(rsdp, srat);
208 printk(BIOS_DEBUG, " AGESA SRAT table NULL. Skipping.\n");
212 current = ( current + 0x07) & -0x08;
213 printk(BIOS_DEBUG, "ACPI: * SLIT at %lx\n", current);
214 slit = (acpi_slit_t *) agesawrapper_getlateinitptr (PICK_SLIT);
216 memcpy((void *)current, slit, slit->header.length);
217 slit = (acpi_slit_t *) current;
218 current += slit->header.length;
219 acpi_add_table(rsdp, slit);
222 printk(BIOS_DEBUG, " AGESA SLIT table NULL. Skipping.\n");
226 current = ( current + 0x0f) & -0x10;
227 printk(BIOS_DEBUG, "ACPI: * AGESA SSDT Pstate at %lx\n", current);
228 ssdt = (acpi_header_t *)agesawrapper_getlateinitptr (PICK_PSTATE);
230 memcpy((void *)current, ssdt, ssdt->length);
231 ssdt = (acpi_header_t *) current;
232 current += ssdt->length;
235 printk(BIOS_DEBUG, " AGESA SSDT table NULL. Skipping.\n");
237 acpi_add_table(rsdp,ssdt);
239 current = ( current + 0x0f) & -0x10;
240 printk(BIOS_DEBUG, "ACPI: * coreboot TOM SSDT2 at %lx\n", current);
241 ssdt2 = (acpi_header_t *) current;
242 acpi_create_ssdt_generator(ssdt2, ACPI_TABLE_CREATOR);
243 current += ssdt2->length;
244 acpi_add_table(rsdp,ssdt2);
246 #if DUMP_ACPI_TABLES == 1
247 printk(BIOS_DEBUG, "rsdp\n");
248 dump_mem(rsdp, ((void *)rsdp) + sizeof(acpi_rsdp_t));
250 printk(BIOS_DEBUG, "rsdt\n");
251 dump_mem(rsdt, ((void *)rsdt) + sizeof(acpi_rsdt_t));
253 printk(BIOS_DEBUG, "madt\n");
254 dump_mem(madt, ((void *)madt) + madt->header.length);
256 printk(BIOS_DEBUG, "srat\n");
257 dump_mem(srat, ((void *)srat) + srat->header.length);
259 printk(BIOS_DEBUG, "slit\n");
260 dump_mem(slit, ((void *)slit) + slit->header.length);
262 printk(BIOS_DEBUG, "ssdt\n");
263 dump_mem(ssdt, ((void *)ssdt) + ssdt->length);
265 printk(BIOS_DEBUG, "ssdt2\n");
266 dump_mem(ssdt2, ((void *)ssdt2) + ssdt2->length);
268 printk(BIOS_DEBUG, "fadt\n");
269 dump_mem(fadt, ((void *)fadt) + fadt->header.length);
272 printk(BIOS_INFO, "ACPI: done.\n");