src/mainboard/amd/south_station/acpi_tables.c

   1 /*
   2  * This file is part of the coreboot project.
   3  *
   4  * Copyright (C) 2011 Advanced Micro Devices, Inc.
   5  *
   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.
   9  *
  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.
  14  *
  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
  18  */
  19
  20 #include <console/console.h>
  21 #include <string.h>
  22 #include <arch/acpi.h>
  23 #include <arch/acpigen.h>
  24 #include <arch/ioapic.h>
  25 #include <device/pci.h>
  26 #include <device/pci_ids.h>
  27 #include <cpu/x86/msr.h>
  28 #include "agesawrapper.h"
  29 #include <cpu/amd/mtrr.h>
  30 #include <cpu/amd/amdfam14.h>
  31
  32 #define DUMP_ACPI_TABLES 0
  33
  34 #if DUMP_ACPI_TABLES == 1
  35
  36 static void dump_mem(u32 start, u32 end)
  37 {
  38
  39         u32 i;
  40         print_debug("dump_mem:");
  41         for (i = start; i < end; i++) {
  42                 if ((i & 0xf) == 0) {
  43                         printk(BIOS_DEBUG, "\n%08x:", i);
  44                 }
  45                 printk(BIOS_DEBUG, " %02x", (u8)*((u8 *)i));
  46         }
  47         print_debug("\n");
  48 }
  49 #endif
  50
  51 extern const unsigned char AmlCode[];
  52
  53 unsigned long acpi_fill_ssdt_generator(unsigned long current, const char *oem_table_id)
  54 {
  55         int lens;
  56         msr_t msr;
  57         char pscope[] = "\\_SB.PCI0";
  58
  59         lens = acpigen_write_scope(pscope);
  60         msr = rdmsr(TOP_MEM);
  61         lens += acpigen_write_name_dword("TOM1", msr.lo);
  62         msr = rdmsr(TOP_MEM2);
  63         /*
  64          * Since XP only implements parts of ACPI 2.0, we can't use a qword
  65          * here.
  66          * See http://www.acpi.info/presentations/S01USMOBS169_OS%2520new.ppt
  67          * slide 22ff.
  68          * Shift value right by 20 bit to make it fit into 32bit,
  69          * giving us 1MB granularity and a limit of almost 4Exabyte of memory.
  70          */
  71         lens += acpigen_write_name_dword("TOM2", (msr.hi << 12) | msr.lo >> 20);
  72         acpigen_patch_len(lens - 1);
  73         return (unsigned long) (acpigen_get_current());
  74 }
  75
  76 unsigned long acpi_fill_mcfg(unsigned long current)
  77 {
  78         /* Just a dummy */
  79         return current;
  80 }
  81
  82 unsigned long acpi_fill_madt(unsigned long current)
  83 {
  84         /* create all subtables for processors */
  85         current = acpi_create_madt_lapics(current);
  86
  87         /* Write SB800 IOAPIC, only one */
  88         current += acpi_create_madt_ioapic((acpi_madt_ioapic_t *) current,
  89                                 CONFIG_MAX_CPUS, IO_APIC_ADDR, 0);
  90
  91         current += acpi_create_madt_irqoverride((acpi_madt_irqoverride_t *)
  92                         current, 0, 0, 2, 0);
  93         current += acpi_create_madt_irqoverride((acpi_madt_irqoverride_t *)
  94                         current, 0, 9, 9, 0xF);
  95
  96         /* 0: mean bus 0--->ISA */
  97         /* 0: PIC 0 */
  98         /* 2: APIC 2 */
  99         /* 5 mean: 0101 --> Edige-triggered, Active high */
 100
 101         /* create all subtables for processors */
 102         /* current = acpi_create_madt_lapic_nmis(current, 5, 1); */
 103         /* 1: LINT1 connect to NMI */
 104
 105         return current;
 106 }
 107
 108 unsigned long acpi_fill_hest(acpi_hest_t *hest)
 109 {
 110         void *addr, *current;
 111
 112         /* Skip the HEST header. */
 113         current = (void *)(hest + 1);
 114
 115         addr = agesawrapper_getlateinitptr(PICK_WHEA_MCE);
 116         if (addr != NULL)
 117                 current += acpi_create_hest_error_source(hest, current, 0, (void *)((u32)addr + 2), *(UINT16 *)addr - 2);
 118
 119         addr = agesawrapper_getlateinitptr(PICK_WHEA_CMC);
 120         if (addr != NULL)
 121                 current += acpi_create_hest_error_source(hest, current, 1, (void *)((u32)addr + 2), *(UINT16 *)addr - 2);
 122
 123         return (unsigned long)current;
 124 }
 125
 126 unsigned long acpi_fill_slit(unsigned long current)
 127 {
 128         // Not implemented
 129         return current;
 130 }
 131
 132 unsigned long acpi_fill_srat(unsigned long current)
 133 {
 134         /* No NUMA, no SRAT */
 135         return current;
 136 }
 137
 138 unsigned long write_acpi_tables(unsigned long start)
 139 {
 140         unsigned long current;
 141         acpi_rsdp_t *rsdp;
 142         acpi_rsdt_t *rsdt;
 143         acpi_hpet_t *hpet;
 144         acpi_madt_t *madt;
 145         acpi_srat_t *srat;
 146         acpi_slit_t *slit;
 147         acpi_fadt_t *fadt;
 148         acpi_facs_t *facs;
 149         acpi_header_t *dsdt;
 150         acpi_header_t *ssdt;
 151         acpi_header_t *ssdt2;
 152         acpi_header_t *alib;
 153         acpi_hest_t *hest;
 154
 155         get_bus_conf(); /* it will get sblk, pci1234, hcdn, and sbdn */
 156
 157         /* Align ACPI tables to 16 bytes */
 158         start = (start + 0x0f) & -0x10;
 159         current = start;
 160
 161         printk(BIOS_INFO, "ACPI: Writing ACPI tables at %lx...\n", start);
 162
 163         /* We need at least an RSDP and an RSDT Table */
 164         rsdp = (acpi_rsdp_t *) current;
 165         current += sizeof(acpi_rsdp_t);
 166         rsdt = (acpi_rsdt_t *) current;
 167         current += sizeof(acpi_rsdt_t);
 168
 169         /* clear all table memory */
 170         memset((void *)start, 0, current - start);
 171
 172         acpi_write_rsdp(rsdp, rsdt, NULL);
 173         acpi_write_rsdt(rsdt);
 174
 175         /* DSDT */
 176         current = (current + 0x07) & -0x08;
 177         printk(BIOS_DEBUG, "ACPI:  * DSDT at %lx\n", current);
 178         dsdt = (acpi_header_t *)current;
 179         memcpy(dsdt, &AmlCode, sizeof(acpi_header_t));
 180         current += dsdt->length;
 181         memcpy(dsdt, &AmlCode, dsdt->length);
 182         printk(BIOS_DEBUG, "ACPI:  * DSDT @ %p Length %x\n",dsdt,dsdt->length);
 183
 184         /* FACS */ // it needs 64 bit alignment
 185         current = (current + 0x07) & -0x08;
 186         printk(BIOS_DEBUG, "ACPI:  * FACS at %lx\n", current);
 187         facs = (acpi_facs_t *) current;
 188         current += sizeof(acpi_facs_t);
 189         acpi_create_facs(facs);
 190
 191         /* FADT */
 192         current = (current + 0x07) & -0x08;
 193         printk(BIOS_DEBUG, "ACPI:  * FADT at %lx\n", current);
 194         fadt = (acpi_fadt_t *) current;
 195         current += sizeof(acpi_fadt_t);
 196
 197         acpi_create_fadt(fadt, facs, dsdt);
 198         acpi_add_table(rsdp, fadt);
 199
 200         /*
 201          * We explicitly add these tables later on:
 202          */
 203         current = (current + 0x07) & -0x08;
 204         printk(BIOS_DEBUG, "ACPI:  * HPET at %lx\n", current);
 205         hpet = (acpi_hpet_t *) current;
 206         current += sizeof(acpi_hpet_t);
 207         acpi_create_hpet(hpet);
 208         acpi_add_table(rsdp, hpet);
 209
 210         /* If we want to use HPET Timers Linux wants an MADT */
 211         current = (current + 0x07) & -0x08;
 212         printk(BIOS_DEBUG, "ACPI:  * MADT at %lx\n",current);
 213         madt = (acpi_madt_t *) current;
 214         acpi_create_madt(madt);
 215         current += madt->header.length;
 216         acpi_add_table(rsdp, madt);
 217
 218         /* HEST */
 219         current = (current + 0x07) & -0x08;
 220         hest = (acpi_hest_t *)current;
 221         acpi_write_hest((void *)current);
 222         acpi_add_table(rsdp, (void *)current);
 223         current += ((acpi_header_t *)current)->length;
 224
 225         /* SRAT */
 226         current = (current + 0x07) & -0x08;
 227         printk(BIOS_DEBUG, "ACPI:  * SRAT at %lx\n", current);
 228         srat = (acpi_srat_t *) agesawrapper_getlateinitptr (PICK_SRAT);
 229         if (srat != NULL) {
 230                 memcpy((void *)current, srat, srat->header.length);
 231                 srat = (acpi_srat_t *) current;
 232                 current += srat->header.length;
 233                 acpi_add_table(rsdp, srat);
 234         }
 235         else {
 236                 printk(BIOS_DEBUG, "  AGESA SRAT table NULL. Skipping.\n");
 237         }
 238
 239         /* SLIT */
 240         current = (current + 0x07) & -0x08;
 241         printk(BIOS_DEBUG, "ACPI:  * SLIT at %lx\n", current);
 242         slit = (acpi_slit_t *) agesawrapper_getlateinitptr (PICK_SLIT);
 243         if (slit != NULL) {
 244                 memcpy((void *)current, slit, slit->header.length);
 245                 slit = (acpi_slit_t *) current;
 246                 current += slit->header.length;
 247                 acpi_add_table(rsdp, slit);
 248         }
 249         else {
 250                 printk(BIOS_DEBUG, "  AGESA SLIT table NULL. Skipping.\n");
 251         }
 252
 253         /* SSDT */
 254         current = (current + 0x0f) & -0x10;
 255         printk(BIOS_DEBUG, "ACPI:  * AGESA ALIB SSDT at %lx\n", current);
 256         alib = (acpi_header_t *)agesawrapper_getlateinitptr (PICK_ALIB);
 257         if (alib != NULL) {
 258                 memcpy((void *)current, alib, alib->length);
 259                 alib = (acpi_header_t *) current;
 260                 current += alib->length;
 261                 acpi_add_table(rsdp, (void *)alib);
 262         } else {
 263                 printk(BIOS_DEBUG, "    AGESA ALIB SSDT table NULL. Skipping.\n");
 264         }
 265
 266         /* The DSDT needs additional work for the AGESA SSDT Pstate table */
 267         /* Keep the comment for a while. */
 268         current = (current + 0x0f) & -0x10;
 269         printk(BIOS_DEBUG, "ACPI:  * AGESA SSDT Pstate at %lx\n", current);
 270         ssdt = (acpi_header_t *)agesawrapper_getlateinitptr (PICK_PSTATE);
 271         if (ssdt != NULL) {
 272                 memcpy((void *)current, ssdt, ssdt->length);
 273                 ssdt = (acpi_header_t *) current;
 274                 current += ssdt->length;
 275                 acpi_add_table(rsdp,ssdt);
 276         } else {
 277                 printk(BIOS_DEBUG, "  AGESA SSDT Pstate table NULL. Skipping.\n");
 278         }
 279
 280         current = (current + 0x0f) & -0x10;
 281         printk(BIOS_DEBUG, "ACPI:  * coreboot TOM SSDT2 at %lx\n", current);
 282         ssdt2 = (acpi_header_t *) current;
 283         acpi_create_ssdt_generator(ssdt2, ACPI_TABLE_CREATOR);
 284         current += ssdt2->length;
 285         acpi_add_table(rsdp,ssdt2);
 286
 287 #if DUMP_ACPI_TABLES == 1
 288         printk(BIOS_DEBUG, "rsdp\n");
 289         dump_mem(rsdp, ((void *)rsdp) + sizeof(acpi_rsdp_t));
 290
 291         printk(BIOS_DEBUG, "rsdt\n");
 292         dump_mem(rsdt, ((void *)rsdt) + sizeof(acpi_rsdt_t));
 293
 294         printk(BIOS_DEBUG, "madt\n");
 295         dump_mem(madt, ((void *)madt) + madt->header.length);
 296
 297         printk(BIOS_DEBUG, "srat\n");
 298         dump_mem(srat, ((void *)srat) + srat->header.length);
 299
 300         printk(BIOS_DEBUG, "slit\n");
 301         dump_mem(slit, ((void *)slit) + slit->header.length);
 302
 303         printk(BIOS_DEBUG, "ssdt\n");
 304         dump_mem(ssdt, ((void *)ssdt) + ssdt->length);
 305
 306         printk(BIOS_DEBUG, "ssdt2\n");
 307         dump_mem(ssdt2, ((void *)ssdt2) + ssdt2->length);
 308
 309         printk(BIOS_DEBUG, "fadt\n");
 310         dump_mem(fadt, ((void *)fadt) + fadt->header.length);
 311
 312         printk(BIOS_DEBUG, "hest\n");
 313         dump_mem(hest, ((void *)hest) + hest->header.length);
 314 #endif
 315
 316         printk(BIOS_INFO, "ACPI: done.\n");
 317         return current;
 318 }