src/mainboard/amd/dinar/acpi_tables.c

   1 /*
   2  * This file is part of the coreboot project.
   3  *
   4  * Copyright (C) 2012 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 <arch/io.h>
  26 #include <device/pci.h>
  27 #include <device/pci_ids.h>
  28 #include <cpu/x86/msr.h>
  29 #include <cpu/amd/mtrr.h>
  30
  31 #include "agesawrapper.h"
  32
  33 #define DUMP_ACPI_TABLES 0
  34
  35 #if DUMP_ACPI_TABLES == 1
  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
  54 unsigned long acpi_fill_mcfg(unsigned long current)
  55 {
  56         /* Just a dummy */
  57         return current;
  58 }
  59
  60 unsigned long acpi_fill_madt(unsigned long current)
  61 {
  62         device_t dev;
  63         u32 dword;
  64         u32 gsi_base = 0;
  65         u32 apicid_sb700;
  66         u32 apicid_rd890;
  67
  68         /*
  69          * AGESA v5 Apply apic enumeration rules
  70          * For systems with >= 16 APICs, put the IO-APICs at 0..n and
  71          * put the local-APICs at m..z
  72          * For systems with < 16 APICs, put the Local-APICs at 0..n and
  73          * put the IO-APICs at (n + 1)..z
  74          */
  75 #if CONFIG_MAX_CPUS >= 16
  76         apicid_sb700 = 0x0;
  77 #else
  78         apicid_sb700 = CONFIG_MAX_CPUS + 1
  79 #endif
  80                 apicid_rd890 = apicid_sb700 + 1;
  81
  82         /* create all subtables for processors */
  83         current = acpi_create_madt_lapics(current);
  84
  85         /* Write sb700 IOAPIC, only one */
  86         current += acpi_create_madt_ioapic((acpi_madt_ioapic_t *) current,
  87                         apicid_sb700,
  88                         IO_APIC_ADDR,
  89                         0
  90                         );
  91
  92         /* IOAPIC on rs5690 */
  93         gsi_base += IO_APIC_INTERRUPTS;  /* sb700 has 24 IOAPIC entries. */
  94         dev = dev_find_slot(0, PCI_DEVFN(0, 0));
  95         if (dev) {
  96                 pci_write_config32(dev, 0xF8, 0x1);
  97                 dword = pci_read_config32(dev, 0xFC) & 0xfffffff0;
  98                 current += acpi_create_madt_ioapic((acpi_madt_ioapic_t *) current,
  99                                 apicid_rd890,
 100                                 dword,
 101                                 gsi_base
 102                                 );
 103         }
 104
 105         current += acpi_create_madt_irqoverride((acpi_madt_irqoverride_t *) current,
 106                         0, //BUS
 107                         0, //SOURCE
 108                         2, //gsirq
 109                         0  //flags
 110                         );
 111
 112         /* 0: mean bus 0--->ISA */
 113         /* 0: PIC 0 */
 114         /* 2: APIC 2 */
 115         /* 5 mean: 0101 --> Edige-triggered, Active high */
 116
 117         /* create all subtables for processors */
 118         current += acpi_create_madt_lapic_nmi((acpi_madt_lapic_nmi_t *)current, 0, 5, 1);
 119         current += acpi_create_madt_lapic_nmi((acpi_madt_lapic_nmi_t *)current, 1, 5, 1);
 120         /* 1: LINT1 connect to NMI */
 121
 122         return current;
 123 }
 124
 125 unsigned long acpi_fill_hest(acpi_hest_t *hest)
 126 {
 127         void *addr, *current;
 128
 129         /* Skip the HEST header. */
 130         current = (void *)(hest + 1);
 131
 132         addr = agesawrapper_getlateinitptr(PICK_WHEA_MCE);
 133         if (addr != NULL)
 134                 current += acpi_create_hest_error_source(hest, current, 0, (void *)((u32)addr + 2), *(UINT16 *)addr - 2);
 135
 136         addr = agesawrapper_getlateinitptr(PICK_WHEA_CMC);
 137         if (addr != NULL)
 138                 current += acpi_create_hest_error_source(hest, current, 1, (void *)((u32)addr + 2), *(UINT16 *)addr - 2);
 139
 140         return (unsigned long)current;
 141 }
 142
 143 unsigned long acpi_fill_slit(unsigned long current)
 144 {
 145         // Not implemented
 146         return current;
 147 }
 148
 149 unsigned long acpi_fill_srat(unsigned long current)
 150 {
 151         /* No NUMA, no SRAT */
 152         return current;
 153 }
 154
 155 unsigned long acpi_fill_ssdt_generator(unsigned long current, const char *oem_table_id)
 156 {
 157         int lens;
 158         msr_t msr;
 159         char pscope[] = "\\_SB.PCI0";
 160
 161         lens = acpigen_write_scope(pscope);
 162         msr = rdmsr(TOP_MEM);
 163         lens += acpigen_write_name_dword("TOM1", msr.lo);
 164         msr = rdmsr(TOP_MEM2);
 165         /*
 166          * Since XP only implements parts of ACPI 2.0, we can't use a qword
 167          * here.
 168          * See http://www.acpi.info/presentations/S01USMOBS169_OS%2520new.ppt
 169          * slide 22ff.
 170          * Shift value right by 20 bit to make it fit into 32bit,
 171          * giving us 1MB granularity and a limit of almost 4Exabyte of memory.
 172          */
 173         lens += acpigen_write_name_dword("TOM2", (msr.hi << 12) | msr.lo >> 20);
 174         acpigen_patch_len(lens - 1);
 175         return (unsigned long) (acpigen_get_current());
 176 }
 177
 178 unsigned long write_acpi_tables(unsigned long start)
 179 {
 180         unsigned long current;
 181         acpi_rsdp_t *rsdp;
 182         acpi_rsdt_t *rsdt;
 183         //acpi_hpet_t *hpet;
 184         acpi_madt_t *madt;
 185         acpi_srat_t *srat;
 186         acpi_slit_t *slit;
 187         acpi_fadt_t *fadt;
 188         acpi_facs_t *facs;
 189         acpi_header_t *dsdt;
 190         acpi_header_t *ssdt;
 191         acpi_header_t *ssdt2;
 192         acpi_header_t *alib;
 193         acpi_hest_t *hest;
 194
 195         get_bus_conf(); /* it will get sblk, pci1234, hcdn, and sbdn */
 196
 197         /* Align ACPI tables to 16 bytes */
 198         start = (start + 0x0f) & -0x10;
 199         current = start;
 200
 201         printk(BIOS_INFO, "ACPI: Writing ACPI tables at %lx...\n", start);
 202
 203         /* We need at least an RSDP and an RSDT Table */
 204         rsdp = (acpi_rsdp_t *) current;
 205         current += sizeof(acpi_rsdp_t);
 206         rsdt = (acpi_rsdt_t *) current;
 207         current += sizeof(acpi_rsdt_t);
 208
 209         /* clear all table memory */
 210         memset((void *)start, 0, current - start);
 211
 212         acpi_write_rsdp(rsdp, rsdt, NULL);
 213         acpi_write_rsdt(rsdt);
 214
 215         /* FACS */
 216         printk(BIOS_DEBUG, "ACPI:    * FACS\n");
 217         facs = (acpi_facs_t *) current;
 218         current += sizeof(acpi_facs_t);
 219         acpi_create_facs(facs);
 220
 221         /* DSDT */
 222         printk(BIOS_DEBUG, "ACPI:    * DSDT\n");
 223         dsdt = (acpi_header_t *)current;
 224         memcpy(dsdt, &AmlCode, sizeof(acpi_header_t));
 225         current += dsdt->length;
 226         memcpy(dsdt, &AmlCode, dsdt->length);
 227         printk(BIOS_DEBUG, "ACPI:    * DSDT @ %p Length %x\n", dsdt, dsdt->length);
 228         /* FADT */
 229         printk(BIOS_DEBUG, "ACPI:    * FADT\n");
 230         fadt = (acpi_fadt_t *) current;
 231         current += sizeof(acpi_fadt_t);
 232
 233         acpi_create_fadt(fadt, facs, dsdt);
 234         acpi_add_table(rsdp, fadt);
 235
 236         /*
 237          * We explicitly add these tables later on:
 238          */
 239 #ifdef UNUSED_CODE // Don't need HPET table. we have one in dsdt
 240         current = (current + 0x07) & -0x08;
 241         printk(BIOS_DEBUG, "ACPI:    * HPET at %lx\n", current);
 242         hpet = (acpi_hpet_t *) current;
 243         current += sizeof(acpi_hpet_t);
 244         acpi_create_hpet(hpet);
 245         acpi_add_table(rsdp, hpet);
 246 #endif
 247
 248         /* If we want to use HPET Timers Linux wants an MADT */
 249         current = (current + 0x07) & -0x08;
 250         printk(BIOS_DEBUG, "ACPI:    * MADT at %lx\n",current);
 251         madt = (acpi_madt_t *) current;
 252         acpi_create_madt(madt);
 253         current += madt->header.length;
 254         acpi_add_table(rsdp, madt);
 255
 256         /* HEST */
 257         current = (current + 0x07) & -0x08;
 258         hest = (acpi_hest_t *)current;
 259         acpi_write_hest((void *)current);
 260         acpi_add_table(rsdp, (void *)current);
 261         current += ((acpi_header_t *)current)->length;
 262
 263         /* SRAT */
 264         current = (current + 0x07) & -0x08;
 265         printk(BIOS_DEBUG, "ACPI:    * SRAT at %lx\n", current);
 266         srat = (acpi_srat_t *) agesawrapper_getlateinitptr (PICK_SRAT);
 267         if (srat != NULL) {
 268                 memcpy((void *)current, srat, srat->header.length);
 269                 srat = (acpi_srat_t *) current;
 270                 //acpi_create_srat(srat);
 271                 current += srat->header.length;
 272                 acpi_add_table(rsdp, srat);
 273         }
 274
 275         /* SLIT */
 276         current = (current + 0x07) & -0x08;
 277         printk(BIOS_DEBUG, "ACPI:   * SLIT at %lx\n", current);
 278         slit = (acpi_slit_t *) agesawrapper_getlateinitptr (PICK_SLIT);
 279         if (slit != NULL) {
 280                 memcpy((void *)current, slit, slit->header.length);
 281                 slit = (acpi_slit_t *) current;
 282                 //acpi_create_slit(slit);
 283                 current += slit->header.length;
 284                 acpi_add_table(rsdp, slit);
 285         }
 286
 287         /* SSDT */
 288         current = (current + 0x0f) & -0x10;
 289         printk(BIOS_DEBUG, "ACPI:  * AGESA ALIB SSDT at %lx\n", current);
 290         alib = (acpi_header_t *)agesawrapper_getlateinitptr (PICK_ALIB);
 291         if (alib != NULL) {
 292                 memcpy((void *)current, alib, alib->length);
 293                 alib = (acpi_header_t *) current;
 294                 current += alib->length;
 295                 acpi_add_table(rsdp, (void *)alib);
 296         } else {
 297                 printk(BIOS_DEBUG, "    AGESA ALIB SSDT table NULL. Skipping.\n");
 298         }
 299
 300         /* The DSDT needs additional work for the AGESA SSDT Pstate table */
 301         /* Keep the comment for a while. */
 302         current = (current + 0x0f) & -0x10;
 303         printk(BIOS_DEBUG, "ACPI:  * AGESA SSDT Pstate at %lx\n", current);
 304         ssdt = (acpi_header_t *)agesawrapper_getlateinitptr (PICK_PSTATE);
 305         if (ssdt != NULL) {
 306                 memcpy((void *)current, ssdt, ssdt->length);
 307                 ssdt = (acpi_header_t *) current;
 308                 current += ssdt->length;
 309                 acpi_add_table(rsdp,ssdt);
 310         } else {
 311                 printk(BIOS_DEBUG, "  AGESA SSDT Pstate table NULL. Skipping.\n");
 312         }
 313
 314         current = (current + 0x0f) & -0x10;
 315         printk(BIOS_DEBUG, "ACPI:  * coreboot TOM SSDT2 at %lx\n", current);
 316         ssdt2 = (acpi_header_t *) current;
 317         acpi_create_ssdt_generator(ssdt2, ACPI_TABLE_CREATOR);
 318         current += ssdt2->length;
 319         acpi_add_table(rsdp,ssdt2);
 320
 321 #if DUMP_ACPI_TABLES == 1
 322         printk(BIOS_DEBUG, "rsdp\n");
 323         dump_mem(rsdp, ((void *)rsdp) + sizeof(acpi_rsdp_t));
 324
 325         printk(BIOS_DEBUG, "rsdt\n");
 326         dump_mem(rsdt, ((void *)rsdt) + sizeof(acpi_rsdt_t));
 327
 328         printk(BIOS_DEBUG, "madt\n");
 329         dump_mem(madt, ((void *)madt) + madt->header.length);
 330
 331         printk(BIOS_DEBUG, "srat\n");
 332         dump_mem(srat, ((void *)srat) + srat->header.length);
 333
 334         printk(BIOS_DEBUG, "slit\n");
 335         dump_mem(slit, ((void *)slit) + slit->header.length);
 336
 337         printk(BIOS_DEBUG, "ssdt\n");
 338         dump_mem(ssdt, ((void *)ssdt) + ssdt->length);
 339
 340         printk(BIOS_DEBUG, "fadt\n");
 341         dump_mem(fadt, ((void *)fadt) + fadt->header.length);
 342
 343         printk(BIOS_DEBUG, "hest\n");
 344         dump_mem(hest, ((void *)hest) + hest->header.length);
 345 #endif
 346
 347         printk(BIOS_INFO, "ACPI: done.\n");
 348         return current;
 349 }