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/*
* This file is part of the coreboot project.
*
* Copyright (C) 2008 Advanced Micro Devices, Inc.
* Copyright (C) 2010 Siemens AG, Inc.
* (Written by Josef Kellermann <joseph.kellermann@heitec.de> for Siemens AG, 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/ioapic.h>
#include <arch/smp/mpspec.h>
#include <device/pci.h>
#include <device/pci_ids.h>
#include <cpu/x86/msr.h>
#include <cpu/amd/mtrr.h>
#include <cpu/amd/amdk8_sysconf.h>
#include <../../../northbridge/amd/amdk8/acpi.h>
#include <arch/cpu.h>
#include <cpu/amd/model_fxx_powernow.h>
#include <southbridge/amd/rs690/rs690.h>
extern u16 pm_base;
/*
* Assume the max pstate number is 8
* 0x21(33 bytes) is one package length of _PSS package
*/
#define Maxpstate 8
#define Defpkglength 0x21
#define GLOBAL_VARS_SIZE 0x100
typedef struct {
/* Miscellaneous */
u16 osys;
u16 linx;
u32 pcba;
u8 mpen;
u8 reserv[247];
} __attribute__((packed)) global_vars_t;
static void acpi_write_gvars(global_vars_t *gvars)
{
device_t dev;
struct resource *res;
memset((void *)gvars, 0, GLOBAL_VARS_SIZE);
gvars->pcba = EXT_CONF_BASE_ADDRESS;
dev = dev_find_slot(0, PCI_DEVFN(0,0));
res = probe_resource(dev, 0x1C);
if( res )
gvars->pcba = res->base;
gvars->mpen = 1;
}
extern const unsigned char AmlCode[];
unsigned long acpi_fill_mcfg(unsigned long current)
{
struct resource *res;
resource_t mmconf_base = EXT_CONF_BASE_ADDRESS; // default
device_t dev = dev_find_slot(0,PCI_DEVFN(0,0));
// we report mmconf base
res = probe_resource(dev, 0x1C);
if( res )
mmconf_base = res->base;
current += acpi_create_mcfg_mmconfig((acpi_mcfg_mmconfig_t *)current, mmconf_base, 0x0, 0x0, 0x1f); // Fix me: should i reserve 255 busses ?
return current;
}
unsigned long acpi_fill_madt(unsigned long current)
{
/* create all subtables for processors */
current = acpi_create_madt_lapics(current);
/* Write SB600 IOAPIC, only one */
current += acpi_create_madt_ioapic((acpi_madt_ioapic_t *) current, 2,
IO_APIC_ADDR, 0);
#if !CONFIG_LINT01_CONVERSION
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, MP_IRQ_TRIGGER_LEVEL | MP_IRQ_POLARITY_LOW);
#else
/* 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, MP_IRQ_TRIGGER_EDGE | MP_IRQ_POLARITY_HIGH, 1);
/* 1: LINT1 connect to NMI */
set_nbcfg_enable_bits(dev_find_slot(0, PCI_DEVFN(0x18, 0)), 0x68, 1 << 16, 1 << 16); // Local Interrupt Conversion Enable
#endif
return current;
}
unsigned long acpi_fill_ssdt_generator(unsigned long current, const char *oem_table_id) {
k8acpi_write_vars();
amd_model_fxx_generate_powernow(pm_base + 8, 6, 1);
return (unsigned long) (acpigen_get_current());
}
#define ALIGN_CURRENT current = (ALIGN(current, 16))
unsigned long write_acpi_tables(unsigned long start)
{
unsigned long current;
int i;
acpi_rsdp_t *rsdp;
acpi_rsdt_t *rsdt;
acpi_srat_t *srat;
acpi_xsdt_t *xsdt;
acpi_mcfg_t *mcfg;
acpi_hpet_t *hpet;
acpi_madt_t *madt;
acpi_fadt_t *fadt;
acpi_facs_t *facs;
acpi_header_t *dsdt;
acpi_header_t *ssdt;
get_bus_conf(); /* it will get sblk, pci1234, hcdn, and sbdn */
/* Align ACPI tables to 16byte */
current = start;
ALIGN_CURRENT;
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);
ALIGN_CURRENT;
rsdt = (acpi_rsdt_t *) current;
current += sizeof(acpi_rsdt_t);
ALIGN_CURRENT;
xsdt = (acpi_xsdt_t *) current;
current += sizeof(acpi_xsdt_t);
ALIGN_CURRENT;
/* clear all table memory */
memset((void *)start, 0, current - start);
acpi_write_rsdp(rsdp, rsdt, xsdt);
acpi_write_rsdt(rsdt);
acpi_write_xsdt(xsdt);
/*
* We explicitly add these tables later on:
*/
current = ALIGN(current, 64);
/* FACS */
printk(BIOS_DEBUG, "ACPI: * FACS\n");
facs = (acpi_facs_t *) current;
acpi_create_facs(facs);
current += sizeof(acpi_facs_t);
/* HPET */
printk(BIOS_DEBUG, "ACPI: * HPET\n");
hpet = (acpi_hpet_t *) current;
acpi_create_hpet(hpet);
current += sizeof(acpi_hpet_t);
acpi_add_table(rsdp, hpet);
/* If we want to use HPET Timers Linux wants an MADT */
printk(BIOS_DEBUG, "ACPI: * MADT\n");
madt = (acpi_madt_t *) current;
acpi_create_madt(madt);
current += madt->header.length;
acpi_add_table(rsdp, madt);
/* MCFG */
printk(BIOS_DEBUG, "ACPI: * MCFG\n");
mcfg = (acpi_mcfg_t *) current;
acpi_create_mcfg(mcfg);
current += mcfg->header.length;
acpi_add_table(rsdp, mcfg);
/* SSDT */
printk(BIOS_DEBUG, "ACPI: * SSDT\n");
ssdt = (acpi_header_t *)current;
acpi_create_ssdt_generator(ssdt, ACPI_TABLE_CREATOR);
current += ssdt->length;
acpi_add_table(rsdp, ssdt);
/* DSDT */
printk(BIOS_DEBUG, "ACPI: * DSDT\n");
dsdt = (acpi_header_t *)current;
memcpy(dsdt, &AmlCode, sizeof(acpi_header_t));
current += dsdt->length;
memcpy(dsdt, &AmlCode, dsdt->length);
/* Pack gvars into the ACPI table area */
for (i=0; i < dsdt->length; i++) {
if (*(u32*)(((u32)dsdt) + i) == 0xBADEAFFE) {
printk(BIOS_DEBUG, "ACPI: Patching up globals in DSDT at offset 0x%04x -> 0x%08lx\n", i, current);
*(u32*)(((u32)dsdt) + i) = current;
break;
}
}
/* And fill it */
acpi_write_gvars((global_vars_t *)current);
current += GLOBAL_VARS_SIZE;
/* We patched up the DSDT, so we need to recalculate the checksum */
dsdt->checksum = 0;
dsdt->checksum = acpi_checksum((void *)dsdt, dsdt->length);
printk(BIOS_DEBUG, "ACPI: * DSDT @ %p Length %x\n", dsdt, dsdt->length);
/* FADT */
printk(BIOS_DEBUG, "ACPI: * FADT\n");
fadt = (acpi_fadt_t *) current;
current += sizeof(acpi_fadt_t);
acpi_create_fadt(fadt, facs, dsdt);
acpi_add_table(rsdp, fadt);
/* SRAT */
printk(BIOS_DEBUG, "ACPI: * SRAT\n");
srat = (acpi_srat_t *) current;
acpi_create_srat(srat);
acpi_add_table(rsdp, srat);
printk(BIOS_DEBUG, "current = %lx\n", current);
printk(BIOS_INFO, "ACPI: done.\n");
return current;
}
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