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[];
51 extern const unsigned char AmlCode_ssdt[];
53 unsigned long acpi_fill_mcfg(unsigned long current)
59 unsigned long acpi_fill_madt(unsigned long current)
61 /* create all subtables for processors */
62 current = acpi_create_madt_lapics(current);
64 /* Write SB800 IOAPIC, only one */
65 current += acpi_create_madt_ioapic((acpi_madt_ioapic_t *) current, CONFIG_MAX_CPUS,
68 current += acpi_create_madt_irqoverride((acpi_madt_irqoverride_t *)
70 current += acpi_create_madt_irqoverride((acpi_madt_irqoverride_t *)
71 current, 0, 9, 9, 0xF);
72 /* 0: mean bus 0--->ISA */
75 /* 5 mean: 0101 --> Edige-triggered, Active high */
77 /* create all subtables for processors */
78 /* current = acpi_create_madt_lapic_nmis(current, 5, 1); */
79 /* 1: LINT1 connect to NMI */
84 unsigned long acpi_fill_slit(unsigned long current)
90 unsigned long acpi_fill_srat(unsigned long current)
92 /* No NUMA, no SRAT */
96 unsigned long write_acpi_tables(unsigned long start)
98 unsigned long current;
110 get_bus_conf(); /* it will get sblk, pci1234, hcdn, and sbdn */
112 /* Align ACPI tables to 16 bytes */
113 start = (start + 0x0f) & -0x10;
116 printk(BIOS_INFO, "ACPI: Writing ACPI tables at %lx...\n", start);
118 /* We need at least an RSDP and an RSDT Table */
119 rsdp = (acpi_rsdp_t *) current;
120 current += sizeof(acpi_rsdp_t);
121 rsdt = (acpi_rsdt_t *) current;
122 current += sizeof(acpi_rsdt_t);
124 /* clear all table memory */
125 memset((void *)start, 0, current - start);
127 acpi_write_rsdp(rsdp, rsdt, NULL);
128 acpi_write_rsdt(rsdt);
131 current = ( current + 0x07) & -0x08;
132 printk(BIOS_DEBUG, "ACPI: * DSDT at %lx\n", current);
133 dsdt = (acpi_header_t *)current; // it will used by fadt
134 memcpy(dsdt, &AmlCode, sizeof(acpi_header_t));
135 current += dsdt->length;
136 memcpy(dsdt, &AmlCode, dsdt->length);
137 printk(BIOS_DEBUG, "ACPI: * DSDT @ %p Length %x\n",dsdt,dsdt->length);
139 /* FACS */ // it needs 64 bit alignment
140 current = ( current + 0x07) & -0x08;
141 printk(BIOS_DEBUG, "ACPI: * FACS at %lx\n", current);
142 facs = (acpi_facs_t *) current; // it will be used by fadt
143 current += sizeof(acpi_facs_t);
144 acpi_create_facs(facs);
147 current = ( current + 0x07) & -0x08;
148 printk(BIOS_DEBUG, "ACPI: * FADT at %lx\n", current);
149 fadt = (acpi_fadt_t *) current;
150 current += sizeof(acpi_fadt_t);
152 acpi_create_fadt(fadt, facs, dsdt);
153 acpi_add_table(rsdp, fadt);
156 * We explicitly add these tables later on:
158 current = ( current + 0x07) & -0x08;
159 printk(BIOS_DEBUG, "ACPI: * HPET at %lx\n", current);
160 hpet = (acpi_hpet_t *) current;
161 current += sizeof(acpi_hpet_t);
162 acpi_create_hpet(hpet);
163 acpi_add_table(rsdp, hpet);
165 /* If we want to use HPET Timers Linux wants an MADT */
166 current = ( current + 0x07) & -0x08;
167 printk(BIOS_DEBUG, "ACPI: * MADT at %lx\n",current);
168 madt = (acpi_madt_t *) current;
169 acpi_create_madt(madt);
170 current += madt->header.length;
171 acpi_add_table(rsdp, madt);
174 current = ( current + 0x07) & -0x08;
175 printk(BIOS_DEBUG, "ACPI: * SRAT at %lx\n", current);
176 srat = (acpi_srat_t *) agesawrapper_getlateinitptr (PICK_SRAT);
178 memcpy((void *)current, srat, srat->header.length);
179 srat = (acpi_srat_t *) current;
180 //acpi_create_srat(srat);
181 current += srat->header.length;
182 acpi_add_table(rsdp, srat);
186 current = ( current + 0x07) & -0x08;
187 printk(BIOS_DEBUG, "ACPI: * SLIT at %lx\n", current);
188 slit = (acpi_slit_t *) agesawrapper_getlateinitptr (PICK_SLIT);
190 memcpy((void *)current, slit, slit->header.length);
191 slit = (acpi_slit_t *) current;
192 //acpi_create_slit(slit);
193 current += slit->header.length;
194 acpi_add_table(rsdp, slit);
198 current = ( current + 0x0f) & -0x10;
199 printk(BIOS_DEBUG, "ACPI: * SSDT at %lx\n", current);
200 ssdt = (acpi_header_t *)agesawrapper_getlateinitptr (PICK_PSTATE);
202 memcpy((void *)current, ssdt, ssdt->length);
203 ssdt = (acpi_header_t *) current;
204 current += ssdt->length;
207 ssdt = (acpi_header_t *) current;
208 memcpy(ssdt, &AmlCode_ssdt, sizeof(acpi_header_t));
209 current += ssdt->length;
210 memcpy(ssdt, &AmlCode_ssdt, ssdt->length);
211 char *position = ssdt;
212 if (memcmp(position + 50, "TOM1", 4) == 0)
213 *(u32 *)(position + 55) = __readmsr(0xc001001a);
215 /* recalculate checksum */
217 ssdt->checksum = acpi_checksum((unsigned char *)ssdt,ssdt->length);
219 acpi_add_table(rsdp,ssdt);
221 printk(BIOS_DEBUG, "ACPI: * SSDT for PState at %lx\n", current);
223 #if DUMP_ACPI_TABLES == 1
224 printk(BIOS_DEBUG, "rsdp\n");
225 dump_mem(rsdp, ((void *)rsdp) + sizeof(acpi_rsdp_t));
227 printk(BIOS_DEBUG, "rsdt\n");
228 dump_mem(rsdt, ((void *)rsdt) + sizeof(acpi_rsdt_t));
230 printk(BIOS_DEBUG, "madt\n");
231 dump_mem(madt, ((void *)madt) + madt->header.length);
233 printk(BIOS_DEBUG, "srat\n");
234 dump_mem(srat, ((void *)srat) + srat->header.length);
236 printk(BIOS_DEBUG, "slit\n");
237 dump_mem(slit, ((void *)slit) + slit->header.length);
239 printk(BIOS_DEBUG, "ssdt\n");
240 dump_mem(ssdt, ((void *)ssdt) + ssdt->length);
242 printk(BIOS_DEBUG, "fadt\n");
243 dump_mem(fadt, ((void *)fadt) + fadt->header.length);
246 printk(BIOS_INFO, "ACPI: done.\n");