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/*
* This file is part of the coreboot project.
*
* Copyright (C) 2011 Advanced Micro Devices, Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <console/console.h>
#include <string.h>
#include <arch/acpi.h>
#include <arch/acpigen.h>
#include <arch/ioapic.h>
#include <device/pci.h>
#include <device/pci_ids.h>
#include <cpu/x86/msr.h>
#include "agesawrapper.h"
#include <cpu/amd/mtrr.h>
#include <cpu/amd/amdfam14.h>
extern const unsigned char AmlCode[];
unsigned long acpi_fill_ssdt_generator(unsigned long current, const char *oem_table_id)
{
int lens;
msr_t msr;
char pscope[] = "\\_SB.PCI0";
lens = acpigen_write_scope(pscope);
msr = rdmsr(TOP_MEM);
lens += acpigen_write_name_dword("TOM1", msr.lo);
msr = rdmsr(TOP_MEM2);
/*
* Since XP only implements parts of ACPI 2.0, we can't use a qword
* here.
* See http://www.acpi.info/presentations/S01USMOBS169_OS%2520new.ppt
* slide 22ff.
* Shift value right by 20 bit to make it fit into 32bit,
* giving us 1MB granularity and a limit of almost 4Exabyte of memory.
*/
lens += acpigen_write_name_dword("TOM2", (msr.hi << 12) | msr.lo >> 20);
acpigen_patch_len(lens - 1);
return (unsigned long) (acpigen_get_current());
}
unsigned long acpi_fill_mcfg(unsigned long current)
{
/* Just a dummy */
return current;
}
unsigned long acpi_fill_madt(unsigned long current)
{
/* create all subtables for processors */
current = acpi_create_madt_lapics(current);
/* Write SB800 IOAPIC, only one */
current += acpi_create_madt_ioapic((acpi_madt_ioapic_t *) current,
CONFIG_MAX_CPUS, IO_APIC_ADDR, 0);
current += acpi_create_madt_irqoverride((acpi_madt_irqoverride_t *)
current, 0, 0, 2, 0);
current += acpi_create_madt_irqoverride((acpi_madt_irqoverride_t *)
current, 0, 9, 9, 0xF);
/* 0: mean bus 0--->ISA */
/* 0: PIC 0 */
/* 2: APIC 2 */
/* 5 mean: 0101 --> Edge-triggered, Active high */
/* create all subtables for processors */
/* current = acpi_create_madt_lapic_nmis(current, 5, 1); */
/* 1: LINT1 connect to NMI */
return current;
}
unsigned long acpi_fill_hest(acpi_hest_t *hest)
{
void *addr, *current;
/* Skip the HEST header. */
current = (void *)(hest + 1);
addr = agesawrapper_getlateinitptr(PICK_WHEA_MCE);
if (addr != NULL)
current += acpi_create_hest_error_source(hest, current, 0, (void *)((u32)addr + 2), *(UINT16 *)addr - 2);
addr = agesawrapper_getlateinitptr(PICK_WHEA_CMC);
if (addr != NULL)
current += acpi_create_hest_error_source(hest, current, 1, (void *)((u32)addr + 2), *(UINT16 *)addr - 2);
return (unsigned long)current;
}
unsigned long acpi_fill_slit(unsigned long current)
{
// Not implemented
return current;
}
unsigned long acpi_fill_srat(unsigned long current)
{
/* No NUMA, no SRAT */
return current;
}
unsigned long write_acpi_tables(unsigned long start)
{
unsigned long current;
acpi_rsdp_t *rsdp;
acpi_rsdt_t *rsdt;
acpi_hpet_t *hpet;
acpi_madt_t *madt;
acpi_srat_t *srat;
acpi_slit_t *slit;
acpi_fadt_t *fadt;
acpi_facs_t *facs;
acpi_header_t *dsdt;
acpi_header_t *ssdt;
acpi_header_t *ssdt2;
acpi_header_t *alib;
acpi_hest_t *hest;
/* Align ACPI tables to 16 bytes */
start = ALIGN(start, 16);
current = start;
printk(BIOS_INFO, "ACPI: Writing ACPI tables at %lx...\n", start);
/* We need at least an RSDP and an RSDT Table */
rsdp = (acpi_rsdp_t *) current;
current += sizeof(acpi_rsdp_t);
rsdt = (acpi_rsdt_t *) current;
current += sizeof(acpi_rsdt_t);
/* clear all table memory */
memset((void *)start, 0, current - start);
acpi_write_rsdp(rsdp, rsdt, NULL);
acpi_write_rsdt(rsdt);
/* DSDT */
current = ALIGN(current, 8);
printk(BIOS_DEBUG, "ACPI: * DSDT at %lx\n", current);
dsdt = (acpi_header_t *)current;
memcpy(dsdt, &AmlCode, sizeof(acpi_header_t));
current += dsdt->length;
memcpy(dsdt, &AmlCode, dsdt->length);
printk(BIOS_DEBUG, "ACPI: * DSDT @ %p Length %x\n",dsdt,dsdt->length);
/* FACS */ // it needs 64 bit alignment
current = ALIGN(current, 8);
printk(BIOS_DEBUG, "ACPI: * FACS at %lx\n", current);
facs = (acpi_facs_t *) current;
current += sizeof(acpi_facs_t);
acpi_create_facs(facs);
/* FADT */
current = ALIGN(current, 8);
printk(BIOS_DEBUG, "ACPI: * FADT at %lx\n", current);
fadt = (acpi_fadt_t *) current;
current += sizeof(acpi_fadt_t);
acpi_create_fadt(fadt, facs, dsdt);
acpi_add_table(rsdp, fadt);
/*
* We explicitly add these tables later on:
*/
current = ALIGN(current, 8);
printk(BIOS_DEBUG, "ACPI: * HPET at %lx\n", current);
hpet = (acpi_hpet_t *) current;
current += sizeof(acpi_hpet_t);
acpi_create_hpet(hpet);
acpi_add_table(rsdp, hpet);
/* If we want to use HPET Timers Linux wants an MADT */
current = ALIGN(current, 8);
printk(BIOS_DEBUG, "ACPI: * MADT at %lx\n",current);
madt = (acpi_madt_t *) current;
acpi_create_madt(madt);
current += madt->header.length;
acpi_add_table(rsdp, madt);
/* HEST */
current = ALIGN(current, 8);
hest = (acpi_hest_t *)current;
acpi_write_hest((void *)current);
acpi_add_table(rsdp, (void *)current);
current += ((acpi_header_t *)current)->length;
/* SRAT */
current = ALIGN(current, 8);
printk(BIOS_DEBUG, "ACPI: * SRAT at %lx\n", current);
srat = (acpi_srat_t *) agesawrapper_getlateinitptr (PICK_SRAT);
if (srat != NULL) {
memcpy((void *)current, srat, srat->header.length);
srat = (acpi_srat_t *) current;
current += srat->header.length;
acpi_add_table(rsdp, srat);
}
else {
printk(BIOS_DEBUG, " AGESA SRAT table NULL. Skipping.\n");
}
/* SLIT */
current = ALIGN(current, 8);
printk(BIOS_DEBUG, "ACPI: * SLIT at %lx\n", current);
slit = (acpi_slit_t *) agesawrapper_getlateinitptr (PICK_SLIT);
if (slit != NULL) {
memcpy((void *)current, slit, slit->header.length);
slit = (acpi_slit_t *) current;
current += slit->header.length;
acpi_add_table(rsdp, slit);
}
else {
printk(BIOS_DEBUG, " AGESA SLIT table NULL. Skipping.\n");
}
/* SSDT */
current = ALIGN(current, 16);
printk(BIOS_DEBUG, "ACPI: * AGESA ALIB SSDT at %lx\n", current);
alib = (acpi_header_t *)agesawrapper_getlateinitptr (PICK_ALIB);
if (alib != NULL) {
memcpy((void *)current, alib, alib->length);
alib = (acpi_header_t *) current;
current += alib->length;
acpi_add_table(rsdp, (void *)alib);
} else {
printk(BIOS_DEBUG, " AGESA ALIB SSDT table NULL. Skipping.\n");
}
/* The DSDT needs additional work for the AGESA SSDT Pstate table */
/* Keep the comment for a while. */
current = ALIGN(current, 16);
printk(BIOS_DEBUG, "ACPI: * AGESA SSDT Pstate at %lx\n", current);
ssdt = (acpi_header_t *)agesawrapper_getlateinitptr (PICK_PSTATE);
if (ssdt != NULL) {
memcpy((void *)current, ssdt, ssdt->length);
ssdt = (acpi_header_t *) current;
current += ssdt->length;
acpi_add_table(rsdp,ssdt);
} else {
printk(BIOS_DEBUG, " AGESA SSDT Pstate table NULL. Skipping.\n");
}
current = ALIGN(current, 16);
printk(BIOS_DEBUG, "ACPI: * coreboot TOM SSDT2 at %lx\n", current);
ssdt2 = (acpi_header_t *) current;
acpi_create_ssdt_generator(ssdt2, ACPI_TABLE_CREATOR);
current += ssdt2->length;
acpi_add_table(rsdp,ssdt2);
printk(BIOS_INFO, "ACPI: done.\n");
return current;
}
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