/* * 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */ #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; }