diff options
author | Thomas Gleixner <tglx@linutronix.de> | 2008-01-30 13:30:37 +0100 |
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committer | Ingo Molnar <mingo@elte.hu> | 2008-01-30 13:30:37 +0100 |
commit | e1d9197862ff4d950dab45669b7f37b5ec3219d8 (patch) | |
tree | c1cc3021153eef8a9aff8452c047d200aa70cf39 /include/asm-x86/io_apic.h | |
parent | 8a423ff0c4a0472607bbed6790fdaeec54af2ebb (diff) |
x86: merge include/asm-x86/sparsemem.h
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'include/asm-x86/io_apic.h')
-rw-r--r-- | include/asm-x86/io_apic.h | 158 |
1 files changed, 156 insertions, 2 deletions
diff --git a/include/asm-x86/io_apic.h b/include/asm-x86/io_apic.h index 88494966bee..0f5b3fef0b0 100644 --- a/include/asm-x86/io_apic.h +++ b/include/asm-x86/io_apic.h @@ -1,5 +1,159 @@ +#ifndef __ASM_IO_APIC_H +#define __ASM_IO_APIC_H + +#include <asm/types.h> +#include <asm/mpspec.h> +#include <asm/apicdef.h> + +/* + * Intel IO-APIC support for SMP and UP systems. + * + * Copyright (C) 1997, 1998, 1999, 2000 Ingo Molnar + */ + +/* + * The structure of the IO-APIC: + */ +union IO_APIC_reg_00 { + u32 raw; + struct { + u32 __reserved_2 : 14, + LTS : 1, + delivery_type : 1, + __reserved_1 : 8, + ID : 8; + } __attribute__ ((packed)) bits; +}; + +union IO_APIC_reg_01 { + u32 raw; + struct { + u32 version : 8, + __reserved_2 : 7, + PRQ : 1, + entries : 8, + __reserved_1 : 8; + } __attribute__ ((packed)) bits; +}; + +union IO_APIC_reg_02 { + u32 raw; + struct { + u32 __reserved_2 : 24, + arbitration : 4, + __reserved_1 : 4; + } __attribute__ ((packed)) bits; +}; + +union IO_APIC_reg_03 { + u32 raw; + struct { + u32 boot_DT : 1, + __reserved_1 : 31; + } __attribute__ ((packed)) bits; +}; + +enum ioapic_irq_destination_types { + dest_Fixed = 0, + dest_LowestPrio = 1, + dest_SMI = 2, + dest__reserved_1 = 3, + dest_NMI = 4, + dest_INIT = 5, + dest__reserved_2 = 6, + dest_ExtINT = 7 +}; + +struct IO_APIC_route_entry { + __u32 vector : 8, + delivery_mode : 3, /* 000: FIXED + * 001: lowest prio + * 111: ExtINT + */ + dest_mode : 1, /* 0: physical, 1: logical */ + delivery_status : 1, + polarity : 1, + irr : 1, + trigger : 1, /* 0: edge, 1: level */ + mask : 1, /* 0: enabled, 1: disabled */ + __reserved_2 : 15; + #ifdef CONFIG_X86_32 -# include "io_apic_32.h" + union { + struct { + __u32 __reserved_1 : 24, + physical_dest : 4, + __reserved_2 : 4; + } physical; + + struct { + __u32 __reserved_1 : 24, + logical_dest : 8; + } logical; + } dest; #else -# include "io_apic_64.h" + __u32 __reserved_3 : 24, + dest : 8; +#endif + +} __attribute__ ((packed)); + +#ifdef CONFIG_X86_IO_APIC + +/* + * # of IO-APICs and # of IRQ routing registers + */ +extern int nr_ioapics; +extern int nr_ioapic_registers[MAX_IO_APICS]; + +/* + * MP-BIOS irq configuration table structures: + */ + +/* I/O APIC entries */ +extern struct mpc_config_ioapic mp_ioapics[MAX_IO_APICS]; + +/* # of MP IRQ source entries */ +extern int mp_irq_entries; + +/* MP IRQ source entries */ +extern struct mpc_config_intsrc mp_irqs[MAX_IRQ_SOURCES]; + +/* non-0 if default (table-less) MP configuration */ +extern int mpc_default_type; + +/* Older SiS APIC requires we rewrite the index register */ +extern int sis_apic_bug; + +/* 1 if "noapic" boot option passed */ +extern int skip_ioapic_setup; + +static inline void disable_ioapic_setup(void) +{ + skip_ioapic_setup = 1; +} + +/* + * If we use the IO-APIC for IRQ routing, disable automatic + * assignment of PCI IRQ's. + */ +#define io_apic_assign_pci_irqs \ + (mp_irq_entries && !skip_ioapic_setup && io_apic_irqs) + +#ifdef CONFIG_ACPI +extern int io_apic_get_unique_id(int ioapic, int apic_id); +extern int io_apic_get_version(int ioapic); +extern int io_apic_get_redir_entries(int ioapic); +extern int io_apic_set_pci_routing(int ioapic, int pin, int irq, + int edge_level, int active_high_low); +extern int timer_uses_ioapic_pin_0; +#endif /* CONFIG_ACPI */ + +extern int (*ioapic_renumber_irq)(int ioapic, int irq); +extern void ioapic_init_mappings(void); + +#else /* !CONFIG_X86_IO_APIC */ +#define io_apic_assign_pci_irqs 0 +#endif + #endif |