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/*
* This file is part of the coreboot project.
*
* Copyright (C) 2007-2008 coresystems GmbH
*
* 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 <device/device.h>
#include <device/pci.h>
#include <console/console.h>
#include <arch/smp/mpspec.h>
#include <arch/ioapic.h>
#include <string.h>
#include <stdint.h>
static void *smp_write_config_table(void *v)
{
static const char sig[4] = "PCMP";
static const char oem[8] = "COREBOOT";
static const char productid[12] = "MB899 ";
struct mp_config_table *mc;
struct device *riser = NULL, *firewire = NULL;
int i;
int max_pci_bus, firewire_bus = 0, riser_bus = 0, isa_bus;
int ioapic_id;
mc = (void *)(((char *)v) + SMP_FLOATING_TABLE_LEN);
memset(mc, 0, sizeof(*mc));
memcpy(mc->mpc_signature, sig, sizeof(sig));
mc->mpc_length = sizeof(*mc); /* initially just the header */
mc->mpc_spec = 0x04;
mc->mpc_checksum = 0; /* not yet computed */
memcpy(mc->mpc_oem, oem, sizeof(oem));
memcpy(mc->mpc_productid, productid, sizeof(productid));
mc->mpc_oemptr = 0;
mc->mpc_oemsize = 0;
mc->mpc_entry_count = 0; /* No entries yet... */
mc->mpc_lapic = LAPIC_ADDR;
mc->mpe_length = 0;
mc->mpe_checksum = 0;
mc->reserved = 0;
smp_write_processors(mc);
max_pci_bus=0;
firewire = dev_find_device(0x104c, 0x8023, 0);
if (firewire) {
firewire_bus = firewire->bus->secondary;
printk(BIOS_SPEW, "Firewire device is on bus %x\n",
firewire_bus);
max_pci_bus = firewire_bus;
}
// If a riser card is used, this riser is detected on bus 4, so its secondary bus is the
// highest bus number on the pci bus.
riser = dev_find_device(0x3388, 0x0021, 0);
if (!riser)
riser = dev_find_device(0x3388, 0x0022, 0);
if (riser) {
riser_bus = riser->link_list->secondary;
printk(BIOS_SPEW, "Riser bus is %x\n", riser_bus);
max_pci_bus = riser_bus;
}
/* ISA bus follows */
isa_bus = max_pci_bus + 1;
/* Bus: Bus ID Type */
for (i=0; i <= max_pci_bus; i++)
smp_write_bus(mc, i, "PCI ");
smp_write_bus(mc, isa_bus, "ISA ");
/* I/O APICs: APIC ID Version State Address */
ioapic_id = 2;
smp_write_ioapic(mc, ioapic_id, 0x20, IO_APIC_ADDR);
/* Legacy Interrupts */
/* I/O Ints: Type Polarity Trigger Bus ID IRQ APIC ID PIN# */
smp_write_intsrc(mc, mp_ExtINT, MP_IRQ_TRIGGER_EDGE|MP_IRQ_POLARITY_DEFAULT, isa_bus, 0x0, ioapic_id, 0x0);
smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_DEFAULT|MP_IRQ_POLARITY_DEFAULT, isa_bus, 0x1, ioapic_id, 0x1);
smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_DEFAULT|MP_IRQ_POLARITY_DEFAULT, isa_bus, 0x0, ioapic_id, 0x2);
smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_DEFAULT|MP_IRQ_POLARITY_DEFAULT, isa_bus, 0x3, ioapic_id, 0x3);
smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_DEFAULT|MP_IRQ_POLARITY_DEFAULT, isa_bus, 0x4, ioapic_id, 0x4);
smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_EDGE|MP_IRQ_POLARITY_HIGH, isa_bus, 0x8, ioapic_id, 0x8);
smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_DEFAULT|MP_IRQ_POLARITY_DEFAULT, isa_bus, 0x9, ioapic_id, 0x9);
smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_DEFAULT|MP_IRQ_POLARITY_DEFAULT, isa_bus, 0xa, ioapic_id, 0xa);
smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_DEFAULT|MP_IRQ_POLARITY_DEFAULT, isa_bus, 0xb, ioapic_id, 0xb);
smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_DEFAULT|MP_IRQ_POLARITY_DEFAULT, isa_bus, 0xc, ioapic_id, 0xc);
smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_DEFAULT|MP_IRQ_POLARITY_DEFAULT, isa_bus, 0xd, ioapic_id, 0xd);
smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_DEFAULT|MP_IRQ_POLARITY_DEFAULT, isa_bus, 0xe, ioapic_id, 0xe);
smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_DEFAULT|MP_IRQ_POLARITY_DEFAULT, isa_bus, 0xf, ioapic_id, 0xf);
/* Builtin devices on Bus 0 */
smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, 0x0, 0x4, ioapic_id, 0x10);
smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, 0x0, 0x8, ioapic_id, 0x10);
smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, 0x0, 0x7d, ioapic_id, 0x13);
smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, 0x0, 0x74, ioapic_id, 0x17);
smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, 0x0, 0x75, ioapic_id, 0x13);
smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, 0x0, 0x76, ioapic_id, 0x12);
smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, 0x0, 0x77, ioapic_id, 0x10);
smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, 0x0, 0x6c, ioapic_id, 0x10);
smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, 0x0, 0x70, ioapic_id, 0x10);
smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, 0x0, 0x71, ioapic_id, 0x11);
/* Internal PCI bus (Firewire, PCI slot) */
if (firewire) {
smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, firewire_bus, 0x0, ioapic_id, 0x10);
smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, firewire_bus, 0x4, ioapic_id, 0x14);
}
if (riser) {
/* Old riser card */
// riser slot top 5:8.0
smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, riser_bus, 0x20, ioapic_id, 0x14);
// riser slot middle 5:9.0
smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, riser_bus, 0x24, ioapic_id, 0x15);
// riser slot bottom 5:a.0
smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, riser_bus, 0x28, ioapic_id, 0x16);
/* New Riser Card */
smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, riser_bus, 0x30, ioapic_id, 0x14);
smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, riser_bus, 0x34, ioapic_id, 0x15);
smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, riser_bus, 0x38, ioapic_id, 0x16);
}
/* PCIe slot */
smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, 0x1, 0x0, ioapic_id, 0x10);
smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, 0x1, 0x1, ioapic_id, 0x11);
/* Onboard Ethernet */
smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, 0x2, 0x0, ioapic_id, 0x10);
/* Local Ints: Type Polarity Trigger Bus ID IRQ APIC ID PIN# */
smp_write_intsrc(mc, mp_ExtINT, MP_IRQ_TRIGGER_DEFAULT|MP_IRQ_POLARITY_DEFAULT, isa_bus, 0x0, MP_APIC_ALL, 0x0);
smp_write_intsrc(mc, mp_NMI, MP_IRQ_TRIGGER_DEFAULT|MP_IRQ_POLARITY_DEFAULT, isa_bus, 0x0, MP_APIC_ALL, 0x1);
/* Compute the checksums */
mc->mpe_checksum = smp_compute_checksum(smp_next_mpc_entry(mc), mc->mpe_length);
mc->mpc_checksum = smp_compute_checksum(mc, mc->mpc_length);
printk(BIOS_DEBUG, "Wrote the mp table end at: %p - %p\n", mc, smp_next_mpe_entry(mc));
return smp_next_mpe_entry(mc);
}
/* MP table generation in coreboot is not very well designed;
* One of the issues is that it knows nothing about Virtual
* Wire mode, which everyone uses since a decade or so. This
* function fixes up our floating table. This spares us doing
* a half-baked fix of adding a new parameter to 200+ calls
* to smp_write_floating_table()
*/
static void fixup_virtual_wire(void *v)
{
struct intel_mp_floating *mf = v;
mf->mpf_checksum = 0;
mf->mpf_feature2 = MP_FEATURE_VIRTUALWIRE;
mf->mpf_checksum = smp_compute_checksum(mf, mf->mpf_length*16);
}
unsigned long write_smp_table(unsigned long addr)
{
void *v;
v = smp_write_floating_table(addr);
fixup_virtual_wire(v);
return (unsigned long)smp_write_config_table(v);
}
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