diff options
| author | Dmitry Torokhov <dtor_core@ameritech.net> | 2005-09-09 20:14:47 -0500 |
|---|---|---|
| committer | Dmitry Torokhov <dtor_core@ameritech.net> | 2005-09-09 20:14:47 -0500 |
| commit | d344c5e0856ad03278d8700b503762dbc8b86e12 (patch) | |
| tree | a6d893a643470a3c2580a58f3228a55fa1fd1d82 /arch/i386/mach-generic/probe.c | |
| parent | 010988e888a0abbe7118635c1b33d049caae6b29 (diff) | |
| parent | 87fc767b832ef5a681a0ff9d203c3289bc3be2bf (diff) | |
Manual merge with Linus
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 5497c65a879..cea5b3ce4b5 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()) { |