mpspec.h

#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];
};

/* 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;

#ifdef CONFIG_ACPI
extern void mp_register_lapic (u8 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_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 triggering, int polarity);
#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