72 lines
2.0 KiB
C
72 lines
2.0 KiB
C
/*
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* This file is part of the coreboot project.
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*
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* Copyright (C) 2011 Advanced Micro Devices, Inc.
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* Copyright (C) 2012 Kyösti Mälkki <kyosti.malkki@gmail.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include <device/device.h>
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#include <console/console.h>
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#include <cpu/x86/lapic.h>
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void remap_bsp_lapic(struct bus *cpu_bus)
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{
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struct device_path cpu_path;
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device_t cpu;
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u32 bsp_lapic_id = lapicid();
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if (bsp_lapic_id) {
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cpu_path.type = DEVICE_PATH_APIC;
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cpu_path.apic.apic_id = 0;
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cpu = find_dev_path(cpu_bus, &cpu_path);
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if (cpu)
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cpu->path.apic.apic_id = bsp_lapic_id;
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}
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}
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device_t add_cpu_device(struct bus *cpu_bus, unsigned apic_id, int enabled)
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{
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struct device_path cpu_path;
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device_t cpu;
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/* Build the cpu device path */
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cpu_path.type = DEVICE_PATH_APIC;
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cpu_path.apic.apic_id = apic_id;
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/* Update CPU in devicetree. */
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if (enabled)
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cpu = alloc_find_dev(cpu_bus, &cpu_path);
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else
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cpu = find_dev_path(cpu_bus, &cpu_path);
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if (!cpu)
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return NULL;
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cpu->enabled = enabled;
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printk(BIOS_DEBUG, "CPU: %s %s\n",
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dev_path(cpu), cpu->enabled?"enabled":"disabled");
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return cpu;
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}
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void set_cpu_topology(device_t cpu, unsigned node, unsigned package, unsigned core, unsigned thread)
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{
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cpu->path.apic.node_id = node;
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cpu->path.apic.package_id = package;
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cpu->path.apic.core_id = core;
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cpu->path.apic.thread_id = thread;
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}
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