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| author | Thomas Gleixner <tglx@linutronix.de> | 2007-10-11 11:14:46 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2007-10-11 11:14:46 +0200 |
| commit | 198a071dff9ee61973edf8c58f22ecd5bc4892c8 (patch) | |
| tree | b93bd50b1161fc434916fd2ebfa7f8b41bf1e6c6 /arch/x86_64/kernel/genapic.c | |
| parent | 3b69915deee81842ba192c251573141ac3af86db (diff) | |
| download | kernel_replicant_linux-198a071dff9ee61973edf8c58f22ecd5bc4892c8.tar.gz kernel_replicant_linux-198a071dff9ee61973edf8c58f22ecd5bc4892c8.tar.bz2 kernel_replicant_linux-198a071dff9ee61973edf8c58f22ecd5bc4892c8.zip | |
x86_64: prepare shared kernel/genapic.c
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86_64/kernel/genapic.c')
| -rw-r--r-- | arch/x86_64/kernel/genapic.c | 66 |
1 files changed, 0 insertions, 66 deletions
diff --git a/arch/x86_64/kernel/genapic.c b/arch/x86_64/kernel/genapic.c deleted file mode 100644 index 47496a40e84f..000000000000 --- a/arch/x86_64/kernel/genapic.c +++ /dev/null @@ -1,66 +0,0 @@ -/* - * Copyright 2004 James Cleverdon, IBM. - * Subject to the GNU Public License, v.2 - * - * Generic APIC sub-arch probe layer. - * - * Hacked for x86-64 by James Cleverdon from i386 architecture code by - * Martin Bligh, Andi Kleen, James Bottomley, John Stultz, and - * James Cleverdon. - */ -#include <linux/threads.h> -#include <linux/cpumask.h> -#include <linux/string.h> -#include <linux/module.h> -#include <linux/kernel.h> -#include <linux/ctype.h> -#include <linux/init.h> - -#include <asm/smp.h> -#include <asm/ipi.h> -#include <asm/genapic.h> - -#ifdef CONFIG_ACPI -#include <acpi/acpi_bus.h> -#endif - -/* which logical CPU number maps to which CPU (physical APIC ID) */ -u8 x86_cpu_to_apicid[NR_CPUS] __read_mostly - = { [0 ... NR_CPUS-1] = BAD_APICID }; -EXPORT_SYMBOL(x86_cpu_to_apicid); - -u8 x86_cpu_to_log_apicid[NR_CPUS] = { [0 ... NR_CPUS-1] = BAD_APICID }; - -struct genapic __read_mostly *genapic = &apic_flat; - -/* - * Check the APIC IDs in bios_cpu_apicid and choose the APIC mode. - */ -void __init setup_apic_routing(void) -{ -#ifdef CONFIG_ACPI - /* - * Quirk: some x86_64 machines can only use physical APIC mode - * regardless of how many processors are present (x86_64 ES7000 - * is an example). - */ - if (acpi_gbl_FADT.header.revision > FADT2_REVISION_ID && - (acpi_gbl_FADT.flags & ACPI_FADT_APIC_PHYSICAL)) - genapic = &apic_physflat; - else -#endif - - if (cpus_weight(cpu_possible_map) <= 8) - genapic = &apic_flat; - else - genapic = &apic_physflat; - - printk(KERN_INFO "Setting APIC routing to %s\n", genapic->name); -} - -/* Same for both flat and physical. */ - -void send_IPI_self(int vector) -{ - __send_IPI_shortcut(APIC_DEST_SELF, vector, APIC_DEST_PHYSICAL); -} |