LXR linux/arch/x86/mach-generic/bigsmp.c

   1/* 
   2 * APIC driver for "bigsmp" XAPIC machines with more than 8 virtual CPUs.
   3 * Drives the local APIC in "clustered mode".
   4 */
   5#define APIC_DEFINITION 1
   6#include <linux/threads.h>
   7#include <linux/cpumask.h>
   8#include <asm/smp.h>
   9#include <asm/mpspec.h>
  10#include <asm/genapic.h>
  11#include <asm/fixmap.h>
  12#include <asm/apicdef.h>
  13#include <linux/kernel.h>
  14#include <linux/smp.h>
  15#include <linux/init.h>
  16#include <linux/dmi.h>
  17#include <asm/mach-bigsmp/mach_apic.h>
  18#include <asm/mach-bigsmp/mach_apicdef.h>
  19#include <asm/mach-bigsmp/mach_ipi.h>
  20#include <asm/mach-default/mach_mpparse.h>
  21
  22static int dmi_bigsmp; /* can be set by dmi scanners */
  23
  24static int hp_ht_bigsmp(const struct dmi_system_id *d)
  25{
  26#ifdef CONFIG_X86_GENERICARCH
  27        printk(KERN_NOTICE "%s detected: force use of apic=bigsmp\n", d->ident);
  28        dmi_bigsmp = 1;
  29#endif
  30        return 0;
  31}
  32
  33
  34static const struct dmi_system_id bigsmp_dmi_table[] = {
  35        { hp_ht_bigsmp, "HP ProLiant DL760 G2", {
  36                DMI_MATCH(DMI_BIOS_VENDOR, "HP"),
  37                DMI_MATCH(DMI_BIOS_VERSION, "P44-"),
  38        }},
  39
  40        { hp_ht_bigsmp, "HP ProLiant DL740", {
  41                DMI_MATCH(DMI_BIOS_VENDOR, "HP"),
  42                DMI_MATCH(DMI_BIOS_VERSION, "P47-"),
  43         }},
  44         { }
  45};
  46
  47
  48static int probe_bigsmp(void)
  49{ 
  50        if (def_to_bigsmp)
  51                dmi_bigsmp = 1;
  52        else
  53                dmi_check_system(bigsmp_dmi_table);
  54        return dmi_bigsmp; 
  55} 
  56
  57struct genapic apic_bigsmp = APIC_INIT("bigsmp", probe_bigsmp); 
  58