openwrt/upstream - upstream openwrt

	Commit message (Expand)	Author	Age	Files	Lines
*	add support for alternative C libraries (currently only glibc/eglibc) other (...	Nicolas Thill	2009-01-08	1	-0/+5
/* Copyright 2003 Andi Kleen, SuSE Labs. 
 * Subject to the GNU Public License, v.2 
 * 
 * Generic x86 APIC driver probe layer.
 */  
#include <xen/config.h>
#include <xen/cpumask.h>
#include <xen/string.h>
#include <xen/kernel.h>
#include <xen/ctype.h>
#include <xen/init.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;

struct genapic *apic_probe[] __initdata = { 
	&apic_summit,
	&apic_bigsmp, 
	&apic_es7000,
	&apic_default,	/* must be last */
	NULL,
};

static void __init genapic_apic_force(char *str)
{
	int i;
	for (i = 0; apic_probe[i]; i++)
		if (!strcmp(apic_probe[i]->name, str))
			genapic = apic_probe[i];
}
custom_param("apic", genapic_apic_force);

void __init generic_apic_probe(void) 
{ 
	int i;
	int changed = (genapic != NULL);

	for (i = 0; !changed && apic_probe[i]; i++) { 
		if (apic_probe[i]->probe()) {
			changed = 1;
			genapic = apic_probe[i]; 
		} 
	}
	if (!changed) 
		genapic = &apic_default;

	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)) { 
			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)) { 
			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));
}