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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
commit a65d1d644c
5 changed files with 17 additions and 10 deletions
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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);