| /* |
| * x86 SMP booting functions |
| * |
| * (c) 1995 Alan Cox, Building #3 <alan@redhat.com> |
| * (c) 1998, 1999, 2000 Ingo Molnar <mingo@redhat.com> |
| * |
| * Much of the core SMP work is based on previous work by Thomas Radke, to |
| * whom a great many thanks are extended. |
| * |
| * Thanks to Intel for making available several different Pentium, |
| * Pentium Pro and Pentium-II/Xeon MP machines. |
| * Original development of Linux SMP code supported by Caldera. |
| * |
| * This code is released under the GNU General Public License version 2 or |
| * later. |
| * |
| * Fixes |
| * Felix Koop : NR_CPUS used properly |
| * Jose Renau : Handle single CPU case. |
| * Alan Cox : By repeated request 8) - Total BogoMIPS report. |
| * Greg Wright : Fix for kernel stacks panic. |
| * Erich Boleyn : MP v1.4 and additional changes. |
| * Matthias Sattler : Changes for 2.1 kernel map. |
| * Michel Lespinasse : Changes for 2.1 kernel map. |
| * Michael Chastain : Change trampoline.S to gnu as. |
| * Alan Cox : Dumb bug: 'B' step PPro's are fine |
| * Ingo Molnar : Added APIC timers, based on code |
| * from Jose Renau |
| * Ingo Molnar : various cleanups and rewrites |
| * Tigran Aivazian : fixed "0.00 in /proc/uptime on SMP" bug. |
| * Maciej W. Rozycki : Bits for genuine 82489DX APICs |
| * Martin J. Bligh : Added support for multi-quad systems |
| * Dave Jones : Report invalid combinations of Athlon CPUs. |
| * Rusty Russell : Hacked into shape for new "hotplug" boot process. */ |
| |
| #include <linux/module.h> |
| #include <linux/init.h> |
| #include <linux/kernel.h> |
| |
| #include <linux/mm.h> |
| #include <linux/sched.h> |
| #include <linux/kernel_stat.h> |
| #include <linux/bootmem.h> |
| #include <linux/notifier.h> |
| #include <linux/cpu.h> |
| #include <linux/percpu.h> |
| #include <linux/nmi.h> |
| |
| #include <linux/delay.h> |
| #include <linux/mc146818rtc.h> |
| #include <asm/tlbflush.h> |
| #include <asm/desc.h> |
| #include <asm/arch_hooks.h> |
| #include <asm/nmi.h> |
| |
| #include <mach_apic.h> |
| #include <mach_wakecpu.h> |
| #include <smpboot_hooks.h> |
| #include <asm/vmi.h> |
| #include <asm/mtrr.h> |
| |
| /* which logical CPU number maps to which CPU (physical APIC ID) */ |
| u16 x86_cpu_to_apicid_init[NR_CPUS] __initdata = |
| { [0 ... NR_CPUS-1] = BAD_APICID }; |
| void *x86_cpu_to_apicid_early_ptr; |
| DEFINE_PER_CPU(u16, x86_cpu_to_apicid) = BAD_APICID; |
| EXPORT_PER_CPU_SYMBOL(x86_cpu_to_apicid); |
| |
| u16 x86_bios_cpu_apicid_init[NR_CPUS] __initdata |
| = { [0 ... NR_CPUS-1] = BAD_APICID }; |
| void *x86_bios_cpu_apicid_early_ptr; |
| DEFINE_PER_CPU(u16, x86_bios_cpu_apicid) = BAD_APICID; |
| EXPORT_PER_CPU_SYMBOL(x86_bios_cpu_apicid); |
| |
| u8 apicid_2_node[MAX_APICID]; |
| |
| /* Where the IO area was mapped on multiquad, always 0 otherwise */ |
| void *xquad_portio; |
| #ifdef CONFIG_X86_NUMAQ |
| EXPORT_SYMBOL(xquad_portio); |
| #endif |