diff options
Diffstat (limited to 'arch/i386/mach-generic/probe.c')
-rw-r--r-- | arch/i386/mach-generic/probe.c | 125 |
1 files changed, 0 insertions, 125 deletions
diff --git a/arch/i386/mach-generic/probe.c b/arch/i386/mach-generic/probe.c deleted file mode 100644 index 74f3da634423..000000000000 --- a/arch/i386/mach-generic/probe.c +++ /dev/null @@ -1,125 +0,0 @@ -/* Copyright 2003 Andi Kleen, SuSE Labs. - * Subject to the GNU Public License, v.2 - * - * Generic x86 APIC driver probe layer. - */ -#include <linux/threads.h> -#include <linux/cpumask.h> -#include <linux/string.h> -#include <linux/kernel.h> -#include <linux/ctype.h> -#include <linux/init.h> -#include <linux/errno.h> -#include <asm/fixmap.h> -#include <asm/mpspec.h> -#include <asm/apicdef.h> -#include <asm/genapic.h> - -extern struct genapic apic_summit; -extern struct genapic apic_bigsmp; -extern struct genapic apic_es7000; -extern struct genapic apic_default; - -struct genapic *genapic = &apic_default; - -struct genapic *apic_probe[] __initdata = { - &apic_summit, - &apic_bigsmp, - &apic_es7000, - &apic_default, /* must be last */ - NULL, -}; - -static int cmdline_apic __initdata; -static int __init parse_apic(char *arg) -{ - int i; - - if (!arg) - return -EINVAL; - - for (i = 0; apic_probe[i]; i++) { - if (!strcmp(apic_probe[i]->name, arg)) { - genapic = apic_probe[i]; - cmdline_apic = 1; - return 0; - } - } - - /* Parsed again by __setup for debug/verbose */ - return 0; -} -early_param("apic", parse_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(void) -{ - if (!cmdline_apic) { - int i; - for (i = 0; apic_probe[i]; i++) { - if (apic_probe[i]->probe()) { - genapic = apic_probe[i]; - break; - } - } - /* Not visible without early console */ - if (!apic_probe[i]) - panic("Didn't find an APIC driver"); - } - printk(KERN_INFO "Using APIC driver %s\n", genapic->name); -} - -/* These functions can switch the APIC even after the initial ->probe() */ - -int __init mps_oem_check(struct mp_config_table *mpc, char *oem, char *productid) -{ - int i; - for (i = 0; apic_probe[i]; ++i) { - if (apic_probe[i]->mps_oem_check(mpc,oem,productid)) { - if (!cmdline_apic) { - genapic = apic_probe[i]; - printk(KERN_INFO "Switched to APIC driver `%s'.\n", - genapic->name); - } - return 1; - } - } - return 0; -} - -int __init acpi_madt_oem_check(char *oem_id, char *oem_table_id) -{ - int i; - for (i = 0; apic_probe[i]; ++i) { - if (apic_probe[i]->acpi_madt_oem_check(oem_id, oem_table_id)) { - if (!cmdline_apic) { - genapic = apic_probe[i]; - printk(KERN_INFO "Switched to APIC driver `%s'.\n", - genapic->name); - } - return 1; - } - } - return 0; -} - -int hard_smp_processor_id(void) -{ - return genapic->get_apic_id(*(unsigned long *)(APIC_BASE+APIC_ID)); -} |