#ifndef __ASM_APICDEF_H
#define __ASM_APICDEF_H

/*
 * Constants for various Intel APICs. (local APIC, IOAPIC, etc.)
 *
 * Alan Cox <Alan.Cox@linux.org>, 1995.
 * Ingo Molnar <mingo@redhat.com>, 1999, 2000
 */

#define		APIC_DEFAULT_PHYS_BASE	0xfee00000
 
#define		APIC_ID		0x20
#define			APIC_ID_MASK		(0xFFu<<24)
#define			GET_APIC_ID(x)		(((x)>>24)&0xFFu)
#define		APIC_LVR	0x30
#define			APIC_LVR_MASK		0xFF00FF
#define			GET_APIC_VERSION(x)	((x)&0xFFu)
#define			GET_APIC_MAXLVT(x)	(((x)>>16)&0xFFu)
#define			APIC_INTEGRATED(x)	((x)&0xF0u)
#define		APIC_TASKPRI	0x80
#define			APIC_TPRI_MASK		0xFFu
#define		APIC_ARBPRI	0x90
#define			APIC_ARBPRI_MASK	0xFFu
#define		APIC_PROCPRI	0xA0
#define		APIC_EOI	0xB0
#define			APIC_EIO_ACK		0x0		/* Write this to the EOI register */
#define		APIC_RRR	0xC0
#define		APIC_LDR	0xD0
#define			APIC_LDR_MASK		(0xFFu<<24)
#define			GET_APIC_LOGICAL_ID(x)	(((x)>>24)&0xFFu)
#define			SET_APIC_LOGICAL_ID(x)	(((x)<<24))
#define			APIC_ALL_CPUS		0xFFu
#define		APIC_DFR	0xE0
#define			APIC_DFR_CLUSTER		0x0FFFFFFFul
#define			APIC_DFR_FLAT			0xFFFFFFFFul
#define		APIC_SPIV	0xF0
#define			APIC_SPIV_FOCUS_DISABLED	(1<<9)
#define			APIC_SPIV_APIC_ENABLED		(1<<8)
#define		APIC_ISR	0x100
#define		APIC_TMR	0x180
#define 	APIC_IRR	0x200
#define 	APIC_ESR	0x280
#define			APIC_ESR_SEND_CS	0x00001
#define			APIC_ESR_RECV_CS	0x00002
#define			APIC_ESR_SEND_ACC	0x00004
#define			APIC_ESR_RECV_ACC	0x00008
#define			APIC_ESR_SENDILL	0x00020
#define			APIC_ESR_RECVILL	0x00040
#define			APIC_ESR_ILLREGA	0x00080
#define		APIC_ICR	0x300
#define			APIC_DEST_SELF		0x40000
#define			APIC_DEST_ALLINC	0x80000
#define			APIC_DEST_ALLBUT	0xC0000
#define			APIC_ICR_RR_MASK	0x30000
#define			APIC_ICR_RR_INVALID	0x00000
#define			APIC_ICR_RR_INPROG	0x10000
#define			APIC_ICR_RR_VALID	0x20000
#define			APIC_INT_LEVELTRIG	0x08000
#define			APIC_INT_ASSERT		0x04000
#define			APIC_ICR_BUSY		0x01000
#define			APIC_DEST_LOGICAL	0x00800
#define			APIC_DEST_PHYSICAL	0x00000
#define			APIC_DM_FIXED		0x00000
#define			APIC_DM_LOWEST		0x00100
#define			APIC_DM_SMI		0x00200
#define			APIC_DM_REMRD		0x00300
#define			APIC_DM_NMI		0x00400
#define			APIC_DM_INIT		0x00500
#define			APIC_DM_STARTUP		0x00600
#define			APIC_DM_EXTINT		0x00700
#define			APIC_VECTOR_MASK	0x000FF
#define		APIC_ICR2	0x310
#define			GET_APIC_DEST_FIELD(x)	(((x)>>24)&0xFF)
#define			SET_APIC_DEST_FIELD(x)	((x)<<24)
#define		APIC_LVTT	0x320
#define		APIC_LVTTHMR	0x330
#define		APIC_LVTPC	0x340
#define		APIC_LVT0	0x350
#define			APIC_LVT_TIMER_BASE_MASK	(0x3<<18)
#define			GET_APIC_TIMER_BASE(x)		(((x)>>18)&0x3)
#define			SET_APIC_TIMER_BASE(x)		(((x)<<18))
#define			APIC_TIMER_BASE_CLKIN		0x0
#define			APIC_TIMER_BASE_TMBASE		0x1
#define			APIC_TIMER_BASE_DIV		0x2
#define			APIC_LVT_TIMER_PERIODIC		(1<<17)
#define			APIC_LVT_MASKED			(1<<16)
#define			APIC_LVT_LEVEL_TRIGGER		(1<<15)
#define			APIC_LVT_REMOTE_IRR		(1<<14)
#define			APIC_INPUT_POLARITY		(1<<13)
#define			APIC_SEND_PENDING		(1<<12)
#define			APIC_MODE_MASK			0x700
#define			GET_APIC_DELIVERY_MODE(x)	(((x)>>8)&0x7)
#define			SET_APIC_DELIVERY_MODE(x,y)	(((x)&~0x700)|((y)<<8))
#define				APIC_MODE_FIXED		0x0
#define				APIC_MODE_NMI		0x4
#define				APIC_MODE_EXINT		0x7
#define 	APIC_LVT1	0x360
#define		APIC_LVTERR	0x370
#define		APIC_TMICT	0x380
#define		APIC_TMCCT	0x390
#define		APIC_TDCR	0x3E0
#define			APIC_TDR_DIV_TMBASE	(1<<2)
#define			APIC_TDR_DIV_1		0xB
#define			APIC_TDR_DIV_2		0x0
#define			APIC_TDR_DIV_4		0x1
#define			APIC_TDR_DIV_8		0x2
#define			APIC_TDR_DIV_16		0x3
#define			APIC_TDR_DIV_32		0x8
#define			APIC_TDR_DIV_64		0x9
#define			APIC_TDR_DIV_128	0xA

#define APIC_BASE (fix_to_virt(FIX_APIC_BASE))

#define MAX_IO_APICS 32

/*
 * All x86-64 systems are xAPIC compatible.
 * In the following, "apicid" is a physical APIC ID.
 */
#define XAPIC_DEST_CPUS_SHIFT	4
#define XAPIC_DEST_CPUS_MASK	((1u << XAPIC_DEST_CPUS_SHIFT) - 1)
#define XAPIC_DEST_CLUSTER_MASK	(XAPIC_DEST_CPUS_MASK << XAPIC_DEST_CPUS_SHIFT)
#define APIC_CLUSTER(apicid)	((apicid) & XAPIC_DEST_CLUSTER_MASK)
#define APIC_CLUSTERID(apicid)	(APIC_CLUSTER(apicid) >> XAPIC_DEST_CPUS_SHIFT)
#define APIC_CPUID(apicid)	((apicid) & XAPIC_DEST_CPUS_MASK)
#define NUM_APIC_CLUSTERS	((BAD_APICID + 1) >> XAPIC_DEST_CPUS_SHIFT)

/*
 * the local APIC register structure, memory mapped. Not terribly well
 * tested, but we might eventually use this one in the future - the
 * problem why we cannot use it right now is the P5 APIC, it has an
 * errata which cannot take 8-bit reads and writes, only 32-bit ones ...
 */
#define u32 unsigned int

#define lapic ((volatile struct local_apic *)APIC_BASE)

struct local_apic {

/*000*/	struct { u32 __reserved[4]; } __reserved_01;

/*010*/	struct { u32 __reserved[4]; } __reserved_02;

/*020*/	struct { /* APIC ID Register */
		u32   __reserved_1	: 24,
			phys_apic_id	:  4,
			__reserved_2	:  4;
		u32 __reserved[3];
	} id;

/*030*/	const
	struct { /* APIC Version Register */
		u32   version		:  8,
			__reserved_1	:  8,
			max_lvt		:  8,
			__reserved_2	:  8;
		u32 __reserved[3];
	} version;

/*040*/	struct { u32 __reserved[4]; } __reserved_03;

/*050*/	struct { u32 __reserved[4]; } __reserved_04;

/*060*/	struct { u32 __reserved[4]; } __reserved_05;

/*070*/	struct { u32 __reserved[4]; } __reserved_06;

/*080*/	struct { /* Task Priority Register */
		u32   priority	:  8,
			__reserved_1	: 24;
		u32 __reserved_2[3];
	} tpr;

/*090*/	const
	struct { /* Arbitration Priority Register */
		u32   priority	:  8,
			__reserved_1	: 24;
		u32 __reserved_2[3];
	} apr;

/*0A0*/	const
	struct { /* Processor Priority Register */
		u32   priority	:  8,
			__reserved_1	: 24;
		u32 __reserved_2[3];
	} ppr;

/*0B0*/	struct { /* End Of Interrupt Register */
		u32   eoi;
		u32 __reserved[3];
	} eoi;

/*0C0*/	struct { u32 __reserved[4]; } __reserved_07;

/*0D0*/	struct { /* Logical Destination Register */
		u32   __reserved_1	: 24,
			logical_dest	:  8;
		u32 __reserved_2[3];
	} ldr;

/*0E0*/	struct { /* Destination Format Register */
		u32   __reserved_1	: 28,
			model		:  4;
		u32 __reserved_2[3];
	} dfr;

/*0F0*/	struct { /* Spurious Interrupt Vector Register */
		u32	spurious_vector	:  8,
			apic_enabled	:  1,
			focus_cpu	:  1,
			__reserved_2	: 22;
		u32 __reserved_3[3];
	} svr;

/*100*/	struct { /* In Service Register */
/*170*/		u32 bitfield;
		u32 __reserved[3];
	} isr [8];

/*180*/	struct { /* Trigger Mode Register */
/*1F0*/		u32 bitfield;
		u32 __reserved[3];
	} tmr [8];

/*200*/	struct { /* Interrupt Request Register */
/*270*/		u32 bitfield;
		u32 __reserved[3];
	} irr [8];

/*280*/	union { /* Error Status Register */
		struct {
			u32   send_cs_error			:  1,
				receive_cs_error		:  1,
				send_accept_error		:  1,
				receive_accept_error		:  1,
				__reserved_1			:  1,
				send_illegal_vector		:  1,
				receive_illegal_vector		:  1,
				illegal_register_address	:  1,
				__reserved_2			: 24;
			u32 __reserved_3[3];
		} error_bits;
		struct {
			u32 errors;
			u32 __reserved_3[3];
		} all_errors;
	} esr;

/*290*/	struct { u32 __reserved[4]; } __reserved_08;

/*2A0*/	struct { u32 __reserved[4]; } __reserved_09;

/*2B0*/	struct { u32 __reserved[4]; } __reserved_10;

/*2C0*/	struct { u32 __reserved[4]; } __reserved_11;

/*2D0*/	struct { u32 __reserved[4]; } __reserved_12;

/*2E0*/	struct { u32 __reserved[4]; } __reserved_13;

/*2F0*/	struct { u32 __reserved[4]; } __reserved_14;

/*300*/	struct { /* Interrupt Command Register 1 */
		u32   vector			:  8,
			delivery_mode		:  3,
			destination_mode	:  1,
			delivery_status		:  1,
			__reserved_1		:  1,
			level			:  1,
			trigger			:  1,
			__reserved_2		:  2,
			shorthand		:  2,
			__reserved_3		:  12;
		u32 __reserved_4[3];
	} icr1;

/*310*/	struct { /* Interrupt Command Register 2 */
		union {
			u32   __reserved_1	: 24,
				phys_dest	:  4,
				__reserved_2	:  4;
			u32   __reserved_3	: 24,
				logical_dest	:  8;
		} dest;
		u32 __reserved_4[3];
	} icr2;

/*320*/	struct { /* LVT - Timer */
		u32   vector		:  8,
			__reserved_1	:  4,
			delivery_status	:  1,
			__reserved_2	:  3,
			mask		:  1,
			timer_mode	:  1,
			__reserved_3	: 14;
		u32 __reserved_4[3];
	} lvt_timer;

/*330*/	struct { /* LVT - Thermal Sensor */
		u32  vector		:  8,
			delivery_mode	:  3,
			__reserved_1	:  1,
			delivery_status	:  1,
			__reserved_2	:  3,
			mask		:  1,
			__reserved_3	: 15;
		u32 __reserved_4[3];
	} lvt_thermal;

/*340*/	struct { /* LVT - Performance Counter */
		u32   vector		:  8,
			delivery_mode	:  3,
			__reserved_1	:  1,
			delivery_status	:  1,
			__reserved_2	:  3,
			mask		:  1,
			__reserved_3	: 15;
		u32 __reserved_4[3];
	} lvt_pc;

/*350*/	struct { /* LVT - LINT0 */
		u32   vector		:  8,
			delivery_mode	:  3,
			__reserved_1	:  1,
			delivery_status	:  1,
			polarity	:  1,
			remote_irr	:  1,
			trigger		:  1,
			mask		:  1,
			__reserved_2	: 15;
		u32 __reserved_3[3];
	} lvt_lint0;

/*360*/	struct { /* LVT - LINT1 */
		u32   vector		:  8,
			delivery_mode	:  3,
			__reserved_1	:  1,
			delivery_status	:  1,
			polarity	:  1,
			remote_irr	:  1,
			trigger		:  1,
			mask		:  1,
			__reserved_2	: 15;
		u32 __reserved_3[3];
	} lvt_lint1;

/*370*/	struct { /* LVT - Error */
		u32   vector		:  8,
			__reserved_1	:  4,
			delivery_status	:  1,
			__reserved_2	:  3,
			mask		:  1,
			__reserved_3	: 15;
		u32 __reserved_4[3];
	} lvt_error;

/*380*/	struct { /* Timer Initial Count Register */
		u32   initial_count;
		u32 __reserved_2[3];
	} timer_icr;

/*390*/	const
	struct { /* Timer Current Count Register */
		u32   curr_count;
		u32 __reserved_2[3];
	} timer_ccr;

/*3A0*/	struct { u32 __reserved[4]; } __reserved_16;

/*3B0*/	struct { u32 __reserved[4]; } __reserved_17;

/*3C0*/	struct { u32 __reserved[4]; } __reserved_18;

/*3D0*/	struct { u32 __reserved[4]; } __reserved_19;

/*3E0*/	struct { /* Timer Divide Configuration Register */
		u32   divisor		:  4,
			__reserved_1	: 28;
		u32 __reserved_2[3];
	} timer_dcr;

/*3F0*/	struct { u32 __reserved[4]; } __reserved_20;

} __attribute__ ((packed));

#undef u32

#define BAD_APICID 0xFFu

#endif