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linux/include/asm-x86_64/mpspec.h
Andi Kleen 8893166ff8 [PATCH] x86_64: Increase the maximum number of local APICs to the maximum 
This is needed for large multinode IBM systems which have a sparse
APIC space in clustered mode, fully covering the available 8 bits.

The previous kernels would limit the local APIC number to 127,
which caused it to reject some of the CPUs at boot.

I increased the maximum and shrunk the apic_version array a bit
to make up for that (the version is only 8 bit, so don't need
an full int to store)

Cc:  Chris McDermott <lcm@us.ibm.com>

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-11-14 19:55:17 -08:00

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#ifndef __ASM_MPSPEC_H
#define __ASM_MPSPEC_H
/*
* Structure definitions for SMP machines following the
* Intel Multiprocessing Specification 1.1 and 1.4.
*/
/*
* This tag identifies where the SMP configuration
* information is.
*/
#define SMP_MAGIC_IDENT (('_'<<24)|('P'<<16)|('M'<<8)|'_')
/*
* A maximum of 255 APICs with the current APIC ID architecture.
*/
#define MAX_APICS 255
struct intel_mp_floating
{
char mpf_signature[4]; /* "_MP_" */
unsigned int mpf_physptr; /* Configuration table address */
unsigned char mpf_length; /* Our length (paragraphs) */
unsigned char mpf_specification;/* Specification version */
unsigned char mpf_checksum; /* Checksum (makes sum 0) */
unsigned char mpf_feature1; /* Standard or configuration ? */
unsigned char mpf_feature2; /* Bit7 set for IMCR|PIC */
unsigned char mpf_feature3; /* Unused (0) */
unsigned char mpf_feature4; /* Unused (0) */
unsigned char mpf_feature5; /* Unused (0) */
};
struct mp_config_table
{
char mpc_signature[4];
#define MPC_SIGNATURE "PCMP"
unsigned short mpc_length; /* Size of table */
char mpc_spec; /* 0x01 */
char mpc_checksum;
char mpc_oem[8];
char mpc_productid[12];
unsigned int mpc_oemptr; /* 0 if not present */
unsigned short mpc_oemsize; /* 0 if not present */
unsigned short mpc_oemcount;
unsigned int mpc_lapic; /* APIC address */
unsigned int reserved;
};
/* Followed by entries */
#define MP_PROCESSOR 0
#define MP_BUS 1
#define MP_IOAPIC 2
#define MP_INTSRC 3
#define MP_LINTSRC 4
struct mpc_config_processor
{
unsigned char mpc_type;
unsigned char mpc_apicid; /* Local APIC number */
unsigned char mpc_apicver; /* Its versions */
unsigned char mpc_cpuflag;
#define CPU_ENABLED 1 /* Processor is available */
#define CPU_BOOTPROCESSOR 2 /* Processor is the BP */
unsigned int mpc_cpufeature;
#define CPU_STEPPING_MASK 0x0F
#define CPU_MODEL_MASK 0xF0
#define CPU_FAMILY_MASK 0xF00
unsigned int mpc_featureflag; /* CPUID feature value */
unsigned int mpc_reserved[2];
};
struct mpc_config_bus
{
unsigned char mpc_type;
unsigned char mpc_busid;
unsigned char mpc_bustype[6] __attribute((packed));
};
/* List of Bus Type string values, Intel MP Spec. */
#define BUSTYPE_EISA "EISA"
#define BUSTYPE_ISA "ISA"
#define BUSTYPE_INTERN "INTERN" /* Internal BUS */
#define BUSTYPE_MCA "MCA"
#define BUSTYPE_VL "VL" /* Local bus */
#define BUSTYPE_PCI "PCI"
#define BUSTYPE_PCMCIA "PCMCIA"
#define BUSTYPE_CBUS "CBUS"
#define BUSTYPE_CBUSII "CBUSII"
#define BUSTYPE_FUTURE "FUTURE"
#define BUSTYPE_MBI "MBI"
#define BUSTYPE_MBII "MBII"
#define BUSTYPE_MPI "MPI"
#define BUSTYPE_MPSA "MPSA"
#define BUSTYPE_NUBUS "NUBUS"
#define BUSTYPE_TC "TC"
#define BUSTYPE_VME "VME"
#define BUSTYPE_XPRESS "XPRESS"
struct mpc_config_ioapic
{
unsigned char mpc_type;
unsigned char mpc_apicid;
unsigned char mpc_apicver;
unsigned char mpc_flags;
#define MPC_APIC_USABLE 0x01
unsigned int mpc_apicaddr;
};
struct mpc_config_intsrc
{
unsigned char mpc_type;
unsigned char mpc_irqtype;
unsigned short mpc_irqflag;
unsigned char mpc_srcbus;
unsigned char mpc_srcbusirq;
unsigned char mpc_dstapic;
unsigned char mpc_dstirq;
};
enum mp_irq_source_types {
mp_INT = 0,
mp_NMI = 1,
mp_SMI = 2,
mp_ExtINT = 3
};
#define MP_IRQDIR_DEFAULT 0
#define MP_IRQDIR_HIGH 1
#define MP_IRQDIR_LOW 3
struct mpc_config_lintsrc
{
unsigned char mpc_type;
unsigned char mpc_irqtype;
unsigned short mpc_irqflag;
unsigned char mpc_srcbusid;
unsigned char mpc_srcbusirq;
unsigned char mpc_destapic;
#define MP_APIC_ALL 0xFF
unsigned char mpc_destapiclint;
};
/*
* Default configurations
*
* 1 2 CPU ISA 82489DX
* 2 2 CPU EISA 82489DX neither IRQ 0 timer nor IRQ 13 DMA chaining
* 3 2 CPU EISA 82489DX
* 4 2 CPU MCA 82489DX
* 5 2 CPU ISA+PCI
* 6 2 CPU EISA+PCI
* 7 2 CPU MCA+PCI
*/
#define MAX_MP_BUSSES 256
/* Each PCI slot may be a combo card with its own bus. 4 IRQ pins per slot. */
#define MAX_IRQ_SOURCES (MAX_MP_BUSSES * 4)
enum mp_bustype {
MP_BUS_ISA = 1,
MP_BUS_EISA,
MP_BUS_PCI,
MP_BUS_MCA
};
extern unsigned char mp_bus_id_to_type [MAX_MP_BUSSES];
extern int mp_bus_id_to_pci_bus [MAX_MP_BUSSES];
extern unsigned int boot_cpu_physical_apicid;
extern int smp_found_config;
extern void find_smp_config (void);
extern void get_smp_config (void);
extern int nr_ioapics;
extern unsigned char apic_version [MAX_APICS];
extern int mp_irq_entries;
extern struct mpc_config_intsrc mp_irqs [MAX_IRQ_SOURCES];
extern int mpc_default_type;
extern unsigned long mp_lapic_addr;
extern int pic_mode;
#ifdef CONFIG_ACPI
extern void mp_register_lapic (u8 id, u8 enabled);
extern void mp_register_lapic_address (u64 address);
#ifdef CONFIG_X86_IO_APIC
extern void mp_register_ioapic (u8 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);
extern int mp_register_gsi (u32 gsi, int edge_level, int active_high_low);
#endif /*CONFIG_X86_IO_APIC*/
#endif
extern int using_apic_timer;
#define PHYSID_ARRAY_SIZE BITS_TO_LONGS(MAX_APICS)
struct physid_mask
{
unsigned long mask[PHYSID_ARRAY_SIZE];
};
typedef struct physid_mask physid_mask_t;
#define physid_set(physid, map) set_bit(physid, (map).mask)
#define physid_clear(physid, map) clear_bit(physid, (map).mask)
#define physid_isset(physid, map) test_bit(physid, (map).mask)
#define physid_test_and_set(physid, map) test_and_set_bit(physid, (map).mask)
#define physids_and(dst, src1, src2) bitmap_and((dst).mask, (src1).mask, (src2).mask, MAX_APICS)
#define physids_or(dst, src1, src2) bitmap_or((dst).mask, (src1).mask, (src2).mask, MAX_APICS)
#define physids_clear(map) bitmap_zero((map).mask, MAX_APICS)
#define physids_complement(dst, src) bitmap_complement((dst).mask, (src).mask, MAX_APICS)
#define physids_empty(map) bitmap_empty((map).mask, MAX_APICS)
#define physids_equal(map1, map2) bitmap_equal((map1).mask, (map2).mask, MAX_APICS)
#define physids_weight(map) bitmap_weight((map).mask, MAX_APICS)
#define physids_shift_right(d, s, n) bitmap_shift_right((d).mask, (s).mask, n, MAX_APICS)
#define physids_shift_left(d, s, n) bitmap_shift_left((d).mask, (s).mask, n, MAX_APICS)
#define physids_coerce(map) ((map).mask[0])
#define physids_promote(physids) \
({ \
physid_mask_t __physid_mask = PHYSID_MASK_NONE; \
__physid_mask.mask[0] = physids; \
__physid_mask; \
})
#define physid_mask_of_physid(physid) \
({ \
physid_mask_t __physid_mask = PHYSID_MASK_NONE; \
physid_set(physid, __physid_mask); \
__physid_mask; \
})
#define PHYSID_MASK_ALL { {[0 ... PHYSID_ARRAY_SIZE-1] = ~0UL} }
#define PHYSID_MASK_NONE { {[0 ... PHYSID_ARRAY_SIZE-1] = 0UL} }
extern physid_mask_t phys_cpu_present_map;
#endif
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