blob: 90b1d1f12f08d652d39fef01e241ed321f38c415 (
plain) (
tree)
|
|
#ifndef _ASM_IRQ_VECTORS_H
#define _ASM_IRQ_VECTORS_H
#include <linux/threads.h>
#define NMI_VECTOR 0x02
/*
* IDT vectors usable for external interrupt sources start
* at 0x20:
*/
#define FIRST_EXTERNAL_VECTOR 0x20
#ifdef CONFIG_X86_32
# define SYSCALL_VECTOR 0x80
#else
# define IA32_SYSCALL_VECTOR 0x80
#endif
/*
* Reserve the lowest usable priority level 0x20 - 0x2f for triggering
* cleanup after irq migration on 64 bit.
*/
#define IRQ_MOVE_CLEANUP_VECTOR FIRST_EXTERNAL_VECTOR
/*
* Vectors 0x20-0x2f are used for ISA interrupts on 32 bit.
* Vectors 0x30-0x3f are used for ISA interrupts on 64 bit.
*/
#ifdef CONFIG_X86_32
#define IRQ0_VECTOR (FIRST_EXTERNAL_VECTOR)
#else
#define IRQ0_VECTOR (FIRST_EXTERNAL_VECTOR + 0x10)
#endif
#define IRQ1_VECTOR (IRQ0_VECTOR + 1)
#define IRQ2_VECTOR (IRQ0_VECTOR + 2)
#define IRQ3_VECTOR (IRQ0_VECTOR + 3)
#define IRQ4_VECTOR (IRQ0_VECTOR + 4)
#define IRQ5_VECTOR (IRQ0_VECTOR + 5)
#define IRQ6_VECTOR (IRQ0_VECTOR + 6)
#define IRQ7_VECTOR (IRQ0_VECTOR + 7)
#define IRQ8_VECTOR (IRQ0_VECTOR + 8)
#define IRQ9_VECTOR (IRQ0_VECTOR + 9)
#define IRQ10_VECTOR (IRQ0_VECTOR + 10)
#define IRQ11_VECTOR (IRQ0_VECTOR + 11)
#define IRQ12_VECTOR (IRQ0_VECTOR + 12)
#define IRQ13_VECTOR (IRQ0_VECTOR + 13)
#define IRQ14_VECTOR (IRQ0_VECTOR + 14)
#define IRQ15_VECTOR (IRQ0_VECTOR + 15)
/*
* Special IRQ vectors used by the SMP architecture, 0xf0-0xff
*
* some of the following vectors are 'rare', they are merged
* into a single vector (CALL_FUNCTION_VECTOR) to save vector space.
* TLB, reschedule and local APIC vectors are performance-critical.
*
* Vectors 0xf0-0xfa are free (reserved for future Linux use).
*/
#ifdef CONFIG_X86_32
# define SPURIOUS_APIC_VECTOR 0xff
# define ERROR_APIC_VECTOR 0xfe
# define INVALIDATE_TLB_VECTOR 0xfd
# define RESCHEDULE_VECTOR 0xfc
# define CALL_FUNCTION_VECTOR 0xfb
# define CALL_FUNCTION_SINGLE_VECTOR 0xfa
# define THERMAL_APIC_VECTOR 0xf0
#else
#define SPURIOUS_APIC_VECTOR 0xff
#define ERROR_APIC_VECTOR 0xfe
#define RESCHEDULE_VECTOR 0xfd
#define CALL_FUNCTION_VECTOR 0xfc
#define CALL_FUNCTION_SINGLE_VECTOR 0xfb
#define THERMAL_APIC_VECTOR 0xfa
#define THRESHOLD_APIC_VECTOR 0xf9
#define INVALIDATE_TLB_VECTOR_END 0xf7
#define INVALIDATE_TLB_VECTOR_START 0xf0 /* f0-f7 used for TLB flush */
#define NUM_INVALIDATE_TLB_VECTORS 8
#endif
/*
* Local APIC timer IRQ vector is on a different priority level,
* to work around the 'lost local interrupt if more than 2 IRQ
* sources per level' errata.
*/
#define LOCAL_TIMER_VECTOR 0xef
/*
* First APIC vector available to drivers: (vectors 0x30-0xee) we
* start at 0x31(0x41) to spread out vectors evenly between priority
* levels. (0x80 is the syscall vector)
*/
#ifdef CONFIG_X86_32
# define FIRST_DEVICE_VECTOR 0x31
#else
# define FIRST_DEVICE_VECTOR (IRQ15_VECTOR + 2)
#endif
#define NR_VECTORS 256
#define FPU_IRQ 13
#define FIRST_VM86_IRQ 3
#define LAST_VM86_IRQ 15
#define invalid_vm86_irq(irq) ((irq) < 3 || (irq) > 15)
#if !defined(CONFIG_X86_VOYAGER)
# if defined(CONFIG_X86_IO_APIC) || defined(CONFIG_PARAVIRT) || defined(CONFIG_X86_VISWS)
# define NR_IRQS 224
# if (224 >= 32 * NR_CPUS)
# define NR_IRQ_VECTORS NR_IRQS
# else
# define NR_IRQ_VECTORS (32 * NR_CPUS)
# endif
# else /* IO_APIC || PARAVIRT */
# define NR_IRQS 16
# define NR_IRQ_VECTORS NR_IRQS
# endif
#else /* !VISWS && !VOYAGER */
# define NR_IRQS 224
# define NR_IRQ_VECTORS NR_IRQS
#endif /* VISWS */
/* Voyager specific defines */
/* These define the CPIs we use in linux */
#define VIC_CPI_LEVEL0 0
#define VIC_CPI_LEVEL1 1
/* now the fake CPIs */
#define VIC_TIMER_CPI 2
#define VIC_INVALIDATE_CPI 3
#define VIC_RESCHEDULE_CPI 4
#define VIC_ENABLE_IRQ_CPI 5
#define VIC_CALL_FUNCTION_CPI 6
#define VIC_CALL_FUNCTION_SINGLE_CPI 7
/* Now the QIC CPIs: Since we don't need the two initial levels,
* these are 2 less than the VIC CPIs */
#define QIC_CPI_OFFSET 1
#define QIC_TIMER_CPI (VIC_TIMER_CPI - QIC_CPI_OFFSET)
#define QIC_INVALIDATE_CPI (VIC_INVALIDATE_CPI - QIC_CPI_OFFSET)
#define QIC_RESCHEDULE_CPI (VIC_RESCHEDULE_CPI - QIC_CPI_OFFSET)
#define QIC_ENABLE_IRQ_CPI (VIC_ENABLE_IRQ_CPI - QIC_CPI_OFFSET)
#define QIC_CALL_FUNCTION_CPI (VIC_CALL_FUNCTION_CPI - QIC_CPI_OFFSET)
#define QIC_CALL_FUNCTION_SINGLE_CPI (VIC_CALL_FUNCTION_SINGLE_CPI - QIC_CPI_OFFSET)
#define VIC_START_FAKE_CPI VIC_TIMER_CPI
#define VIC_END_FAKE_CPI VIC_CALL_FUNCTION_SINGLE_CPI
/* this is the SYS_INT CPI. */
#define VIC_SYS_INT 8
#define VIC_CMN_INT 15
/* This is the boot CPI for alternate processors. It gets overwritten
* by the above once the system has activated all available processors */
#define VIC_CPU_BOOT_CPI VIC_CPI_LEVEL0
#define VIC_CPU_BOOT_ERRATA_CPI (VIC_CPI_LEVEL0 + 8)
#endif /* _ASM_IRQ_VECTORS_H */
|
