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/*
* This file is part of the coreboot project.
*
* Copyright (C) 2011 Advanced Micro Devices, Inc.
* Copyright (C) 2012 Kyösti Mälkki <kyosti.malkki@gmail.com>
*
* 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.
*/
#include <device/device.h>
#include <console/console.h>
#include <cpu/x86/lapic.h>
void remap_bsp_lapic(struct bus *cpu_bus)
{
struct device_path cpu_path;
device_t cpu;
u32 bsp_lapic_id = lapicid();
if (bsp_lapic_id) {
cpu_path.type = DEVICE_PATH_APIC;
cpu_path.apic.apic_id = 0;
cpu = find_dev_path(cpu_bus, &cpu_path);
if (cpu)
cpu->path.apic.apic_id = bsp_lapic_id;
}
}
device_t add_cpu_device(struct bus *cpu_bus, unsigned apic_id, int enabled)
{
struct device_path cpu_path;
device_t cpu;
/* Build the cpu device path */
cpu_path.type = DEVICE_PATH_APIC;
cpu_path.apic.apic_id = apic_id;
/* Update CPU in devicetree. */
if (enabled)
cpu = alloc_find_dev(cpu_bus, &cpu_path);
else
cpu = find_dev_path(cpu_bus, &cpu_path);
if (!cpu)
return NULL;
cpu->enabled = enabled;
printk(BIOS_DEBUG, "CPU: %s %s\n",
dev_path(cpu), cpu->enabled?"enabled":"disabled");
return cpu;
}
void set_cpu_topology(device_t cpu, unsigned node, unsigned package, unsigned core, unsigned thread)
{
cpu->path.apic.node_id = node;
cpu->path.apic.package_id = package;
cpu->path.apic.core_id = core;
cpu->path.apic.thread_id = thread;
}
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