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x86: increase size of APICID

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Increase the number of bits in an apicid from 8 to 32.

By default, MP_processor_info() gets the APICID from the
mpc_config_processor structure. However, this structure limits
the size of APICID to 8 bits. This patch allows the caller of
MP_processor_info() to optionally pass a larger APICID that will
be used instead of the one in the mpc_config_processor struct.

Signed-off-by: Jack Steiner <steiner@sgi.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Jack Steiner 2008-03-28 14:12:08 -05:00 committed by Ingo Molnar
parent ae26186865
commit a65d1d644c
5 changed files with 17 additions and 10 deletions
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4
arch/x86/kernel/mpparse_32.c
View file

@ -807,7 +807,7 @@ void __init mp_register_lapic_address(u64 address)
Dprintk("Boot CPU = %d\n", boot_cpu_physical_apicid);
}
void __cpuinit mp_register_lapic (u8 id, u8 enabled)
void __cpuinit mp_register_lapic (int id, u8 enabled)
{
if (MAX_APICS - id <= 0) {
printk(KERN_WARNING "Processor #%d invalid (max %d)\n",
@ -862,7 +862,7 @@ static u8 uniq_ioapic_id(u8 id)
return id;
}
void __init mp_register_ioapic(u8 id, u32 address, u32 gsi_base)
void __init mp_register_ioapic(int id, u32 address, u32 gsi_base)
{
int idx = 0;

4
arch/x86/kernel/mpparse_64.c
View file

@ -633,7 +633,7 @@ void __init mp_register_lapic_address(u64 address)
if (boot_cpu_physical_apicid == -1U)
boot_cpu_physical_apicid = GET_APIC_ID(read_apic_id());
}
void __cpuinit mp_register_lapic(u8 id, u8 enabled)
void __cpuinit mp_register_lapic(int id, u8 enabled)
{
if (!enabled) {
++disabled_cpus;
@ -683,7 +683,7 @@ static u8 uniq_ioapic_id(u8 id)
return find_first_zero_bit(used, 256);
}
void __init mp_register_ioapic(u8 id, u32 address, u32 gsi_base)
void __init mp_register_ioapic(int id, u32 address, u32 gsi_base)
{
int idx = 0;

6
arch/x86/mm/srat_64.c
View file

@ -20,6 +20,7 @@
#include <asm/proto.h>
#include <asm/numa.h>
#include <asm/e820.h>
#include <asm/genapic.h>
int acpi_numa __initdata;
@ -148,7 +149,10 @@ acpi_numa_processor_affinity_init(struct acpi_srat_cpu_affinity *pa)
return;
}
apic_id = pa->apic_id;
if (is_uv_system())
apic_id = (pa->apic_id << 8) | pa->local_sapic_eid;
else
apic_id = pa->apic_id;
apicid_to_node[apic_id] = node;
acpi_numa = 1;
printk(KERN_INFO "SRAT: PXM %u -> APIC %u -> Node %u\n",

9
include/asm-x86/apicdef.h
View file

@ -133,7 +133,7 @@
# define MAX_IO_APICS 64
#else
# define MAX_IO_APICS 128
# define MAX_LOCAL_APIC 256
# define MAX_LOCAL_APIC 32768
#endif
/*
@ -406,6 +406,9 @@ struct local_apic {
#undef u32
#define BAD_APICID 0xFFu
#ifdef CONFIG_X86_32
#define BAD_APICID 0xFFu
#else
#define BAD_APICID 0xFFFFu
#endif
#endif

4
include/asm-x86/mpspec.h
View file

@ -47,9 +47,9 @@ extern void get_smp_config(void);
void __cpuinit generic_processor_info(int apicid, int version);
#ifdef CONFIG_ACPI
extern void mp_register_lapic(u8 id, u8 enabled);
extern void mp_register_lapic(int id, u8 enabled);
extern void mp_register_lapic_address(u64 address);
extern void mp_register_ioapic(u8 id, u32 address, u32 gsi_base);
extern void mp_register_ioapic(int id, u32 address, u32 gsi_base);
extern void mp_override_legacy_irq(u8 bus_irq, u8 polarity, u8 trigger,
u32 gsi);
extern void mp_config_acpi_legacy_irqs(void);