| /* |
| * APIC driver for "bigsmp" XAPIC machines with more than 8 virtual CPUs. |
| * Drives the local APIC in "clustered mode". |
| */ |
| #define APIC_DEFINITION 1 |
| #include <linux/threads.h> |
| #include <linux/cpumask.h> |
| #include <asm/mpspec.h> |
| #include <asm/genapic.h> |
| #include <asm/fixmap.h> |
| #include <asm/apicdef.h> |
| #include <linux/kernel.h> |
| #include <linux/init.h> |
| #include <linux/dmi.h> |
| #include <asm/bigsmp/apicdef.h> |
| #include <linux/smp.h> |
| #include <asm/bigsmp/apic.h> |
| #include <asm/bigsmp/ipi.h> |
| #include <asm/mach-default/mach_mpparse.h> |
| |
| static int dmi_bigsmp; /* can be set by dmi scanners */ |
| |
| static int hp_ht_bigsmp(const struct dmi_system_id *d) |
| { |
| printk(KERN_NOTICE "%s detected: force use of apic=bigsmp\n", d->ident); |
| dmi_bigsmp = 1; |
| return 0; |
| } |
| |
| |
| static const struct dmi_system_id bigsmp_dmi_table[] = { |
| { hp_ht_bigsmp, "HP ProLiant DL760 G2", |
| { DMI_MATCH(DMI_BIOS_VENDOR, "HP"), |
| DMI_MATCH(DMI_BIOS_VERSION, "P44-"),} |
| }, |
| |
| { hp_ht_bigsmp, "HP ProLiant DL740", |
| { DMI_MATCH(DMI_BIOS_VENDOR, "HP"), |
| DMI_MATCH(DMI_BIOS_VERSION, "P47-"),} |
| }, |
| { } |
| }; |
| |
| static cpumask_t vector_allocation_domain(int cpu) |
| { |
| return cpumask_of_cpu(cpu); |
| } |
| |
| static int probe_bigsmp(void) |
| { |
| if (def_to_bigsmp) |
| dmi_bigsmp = 1; |
| else |
| dmi_check_system(bigsmp_dmi_table); |
| return dmi_bigsmp; |
| } |
| |
| struct genapic apic_bigsmp = APIC_INIT("bigsmp", probe_bigsmp); |
