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| author | Jeff Garzik <jgarzik@pobox.com> | 2005-09-08 05:43:49 -0400 |
|---|---|---|
| committer | Jeff Garzik <jgarzik@pobox.com> | 2005-09-08 05:43:49 -0400 |
| commit | 1d6ae775d7a948c9575658eb41184fd2e506c0df (patch) | |
| tree | 8128a28e89d82f13bb8e3a2160382240c66e2816 /arch/i386/mach-generic/probe.c | |
| parent | 739cdbf1d8f0739b80035b80d69d871e33749b86 (diff) | |
| parent | caf39e87cc1182f7dae84eefc43ca14d54c78ef9 (diff) | |
| download | talos-op-linux-1d6ae775d7a948c9575658eb41184fd2e506c0df.tar.gz talos-op-linux-1d6ae775d7a948c9575658eb41184fd2e506c0df.zip | |
Merge /spare/repo/linux-2.6/
Diffstat (limited to 'arch/i386/mach-generic/probe.c')
| -rw-r--r-- | arch/i386/mach-generic/probe.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/arch/i386/mach-generic/probe.c b/arch/i386/mach-generic/probe.c index 5497c65a8790..cea5b3ce4b57 100644 --- a/arch/i386/mach-generic/probe.c +++ b/arch/i386/mach-generic/probe.c @@ -30,6 +30,25 @@ struct genapic *apic_probe[] __initdata = { NULL, }; +static int cmdline_apic; + +void __init generic_bigsmp_probe(void) +{ + /* + * This routine is used to switch to bigsmp mode when + * - There is no apic= option specified by the user + * - generic_apic_probe() has choosen apic_default as the sub_arch + * - we find more than 8 CPUs in acpi LAPIC listing with xAPIC support + */ + + if (!cmdline_apic && genapic == &apic_default) + if (apic_bigsmp.probe()) { + genapic = &apic_bigsmp; + printk(KERN_INFO "Overriding APIC driver with %s\n", + genapic->name); + } +} + void __init generic_apic_probe(char *command_line) { char *s; @@ -52,6 +71,7 @@ void __init generic_apic_probe(char *command_line) if (!changed) printk(KERN_ERR "Unknown genapic `%s' specified.\n", s); *p = old; + cmdline_apic = changed; } for (i = 0; !changed && apic_probe[i]; i++) { if (apic_probe[i]->probe()) { |
