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ad66e1efc9
Now there is no user of x86_io_apic_ops.eoi_ioapic_pin anymore, so remove it. Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com> Tested-by: Joerg Roedel <jroedel@suse.de> Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Cc: David Cohen <david.a.cohen@linux.intel.com> Cc: Sander Eikelenboom <linux@eikelenboom.it> Cc: David Vrabel <david.vrabel@citrix.com> Cc: Tony Luck <tony.luck@intel.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: iommu@lists.linux-foundation.org Cc: Bjorn Helgaas <bhelgaas@google.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Rafael J. Wysocki <rjw@rjwysocki.net> Cc: Randy Dunlap <rdunlap@infradead.org> Cc: Yinghai Lu <yinghai@kernel.org> Cc: Borislav Petkov <bp@alien8.de> Cc: Dimitri Sivanich <sivanich@sgi.com> Cc: Joerg Roedel <joro@8bytes.org> Cc: Yijing Wang <wangyijing@huawei.com> Cc: Grant Likely <grant.likely@linaro.org> Link: http://lkml.kernel.org/r/1428978610-28986-7-git-send-email-jiang.liu@linux.intel.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
286 lines
7.2 KiB
C
286 lines
7.2 KiB
C
#ifndef _ASM_X86_IO_APIC_H
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#define _ASM_X86_IO_APIC_H
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#include <linux/types.h>
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#include <asm/mpspec.h>
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#include <asm/apicdef.h>
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#include <asm/irq_vectors.h>
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#include <asm/x86_init.h>
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/*
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* Intel IO-APIC support for SMP and UP systems.
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*
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* Copyright (C) 1997, 1998, 1999, 2000 Ingo Molnar
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*/
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/* I/O Unit Redirection Table */
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#define IO_APIC_REDIR_VECTOR_MASK 0x000FF
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#define IO_APIC_REDIR_DEST_LOGICAL 0x00800
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#define IO_APIC_REDIR_DEST_PHYSICAL 0x00000
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#define IO_APIC_REDIR_SEND_PENDING (1 << 12)
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#define IO_APIC_REDIR_REMOTE_IRR (1 << 14)
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#define IO_APIC_REDIR_LEVEL_TRIGGER (1 << 15)
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#define IO_APIC_REDIR_MASKED (1 << 16)
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/*
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* The structure of the IO-APIC:
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*/
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union IO_APIC_reg_00 {
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u32 raw;
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struct {
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u32 __reserved_2 : 14,
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LTS : 1,
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delivery_type : 1,
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__reserved_1 : 8,
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ID : 8;
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} __attribute__ ((packed)) bits;
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};
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union IO_APIC_reg_01 {
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u32 raw;
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struct {
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u32 version : 8,
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__reserved_2 : 7,
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PRQ : 1,
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entries : 8,
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__reserved_1 : 8;
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} __attribute__ ((packed)) bits;
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};
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union IO_APIC_reg_02 {
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u32 raw;
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struct {
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u32 __reserved_2 : 24,
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arbitration : 4,
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__reserved_1 : 4;
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} __attribute__ ((packed)) bits;
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};
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union IO_APIC_reg_03 {
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u32 raw;
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struct {
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u32 boot_DT : 1,
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__reserved_1 : 31;
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} __attribute__ ((packed)) bits;
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};
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struct IO_APIC_route_entry {
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__u32 vector : 8,
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delivery_mode : 3, /* 000: FIXED
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* 001: lowest prio
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* 111: ExtINT
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*/
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dest_mode : 1, /* 0: physical, 1: logical */
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delivery_status : 1,
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polarity : 1,
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irr : 1,
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trigger : 1, /* 0: edge, 1: level */
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mask : 1, /* 0: enabled, 1: disabled */
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__reserved_2 : 15;
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__u32 __reserved_3 : 24,
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dest : 8;
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} __attribute__ ((packed));
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struct IR_IO_APIC_route_entry {
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__u64 vector : 8,
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zero : 3,
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index2 : 1,
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delivery_status : 1,
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polarity : 1,
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irr : 1,
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trigger : 1,
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mask : 1,
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reserved : 31,
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format : 1,
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index : 15;
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} __attribute__ ((packed));
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struct irq_alloc_info;
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struct irq_data;
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#define IOAPIC_AUTO -1
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#define IOAPIC_EDGE 0
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#define IOAPIC_LEVEL 1
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#define IOAPIC_MAP_ALLOC 0x1
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#define IOAPIC_MAP_CHECK 0x2
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#ifdef CONFIG_X86_IO_APIC
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/*
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* # of IO-APICs and # of IRQ routing registers
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*/
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extern int nr_ioapics;
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extern int mpc_ioapic_id(int ioapic);
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extern unsigned int mpc_ioapic_addr(int ioapic);
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extern struct mp_ioapic_gsi *mp_ioapic_gsi_routing(int ioapic);
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#define MP_MAX_IOAPIC_PIN 127
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/* # of MP IRQ source entries */
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extern int mp_irq_entries;
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/* MP IRQ source entries */
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extern struct mpc_intsrc mp_irqs[MAX_IRQ_SOURCES];
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/* Older SiS APIC requires we rewrite the index register */
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extern int sis_apic_bug;
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/* 1 if "noapic" boot option passed */
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extern int skip_ioapic_setup;
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/* 1 if "noapic" boot option passed */
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extern int noioapicquirk;
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/* -1 if "noapic" boot option passed */
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extern int noioapicreroute;
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extern unsigned long io_apic_irqs;
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#define IO_APIC_IRQ(x) (((x) >= NR_IRQS_LEGACY) || ((1 << (x)) & io_apic_irqs))
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/*
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* If we use the IO-APIC for IRQ routing, disable automatic
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* assignment of PCI IRQ's.
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*/
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#define io_apic_assign_pci_irqs \
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(mp_irq_entries && !skip_ioapic_setup && io_apic_irqs)
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struct irq_cfg;
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extern void ioapic_insert_resources(void);
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extern int arch_early_ioapic_init(void);
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extern int save_ioapic_entries(void);
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extern void mask_ioapic_entries(void);
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extern int restore_ioapic_entries(void);
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extern void setup_ioapic_ids_from_mpc(void);
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extern void setup_ioapic_ids_from_mpc_nocheck(void);
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struct io_apic_irq_attr {
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int ioapic;
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int ioapic_pin;
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int trigger;
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int polarity;
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};
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enum ioapic_domain_type {
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IOAPIC_DOMAIN_INVALID,
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IOAPIC_DOMAIN_LEGACY,
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IOAPIC_DOMAIN_STRICT,
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IOAPIC_DOMAIN_DYNAMIC,
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};
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struct device_node;
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struct irq_domain;
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struct irq_domain_ops;
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struct ioapic_domain_cfg {
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enum ioapic_domain_type type;
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const struct irq_domain_ops *ops;
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struct device_node *dev;
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};
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struct mp_ioapic_gsi{
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u32 gsi_base;
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u32 gsi_end;
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};
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extern u32 gsi_top;
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extern int mp_find_ioapic(u32 gsi);
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extern int mp_find_ioapic_pin(int ioapic, u32 gsi);
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extern u32 mp_pin_to_gsi(int ioapic, int pin);
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extern int mp_map_gsi_to_irq(u32 gsi, unsigned int flags,
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struct irq_alloc_info *info);
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extern void mp_unmap_irq(int irq);
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extern int mp_register_ioapic(int id, u32 address, u32 gsi_base,
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struct ioapic_domain_cfg *cfg);
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extern int mp_unregister_ioapic(u32 gsi_base);
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extern int mp_ioapic_registered(u32 gsi_base);
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extern int mp_irqdomain_alloc(struct irq_domain *domain, unsigned int virq,
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unsigned int nr_irqs, void *arg);
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extern void mp_irqdomain_free(struct irq_domain *domain, unsigned int virq,
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unsigned int nr_irqs);
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extern void mp_irqdomain_activate(struct irq_domain *domain,
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struct irq_data *irq_data);
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extern void mp_irqdomain_deactivate(struct irq_domain *domain,
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struct irq_data *irq_data);
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extern int mp_irqdomain_ioapic_idx(struct irq_domain *domain);
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extern void ioapic_set_alloc_attr(struct irq_alloc_info *info,
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int node, int trigger, int polarity);
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extern void mp_save_irq(struct mpc_intsrc *m);
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extern void disable_ioapic_support(void);
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extern void __init native_io_apic_init_mappings(void);
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extern unsigned int native_io_apic_read(unsigned int apic, unsigned int reg);
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extern void native_io_apic_write(unsigned int apic, unsigned int reg, unsigned int val);
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extern void native_io_apic_modify(unsigned int apic, unsigned int reg, unsigned int val);
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extern void native_disable_io_apic(void);
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static inline unsigned int io_apic_read(unsigned int apic, unsigned int reg)
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{
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return x86_io_apic_ops.read(apic, reg);
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}
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static inline void io_apic_write(unsigned int apic, unsigned int reg, unsigned int value)
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{
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x86_io_apic_ops.write(apic, reg, value);
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}
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static inline void io_apic_modify(unsigned int apic, unsigned int reg, unsigned int value)
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{
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x86_io_apic_ops.modify(apic, reg, value);
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}
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extern void setup_IO_APIC(void);
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extern void enable_IO_APIC(void);
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extern void disable_IO_APIC(void);
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extern void setup_ioapic_dest(void);
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extern int IO_APIC_get_PCI_irq_vector(int bus, int devfn, int pin);
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extern void print_IO_APICs(void);
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#else /* !CONFIG_X86_IO_APIC */
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#define IO_APIC_IRQ(x) 0
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#define io_apic_assign_pci_irqs 0
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#define setup_ioapic_ids_from_mpc x86_init_noop
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static inline void ioapic_insert_resources(void) { }
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static inline int arch_early_ioapic_init(void) { return 0; }
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static inline void print_IO_APICs(void) {}
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#define gsi_top (NR_IRQS_LEGACY)
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static inline int mp_find_ioapic(u32 gsi) { return 0; }
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static inline u32 mp_pin_to_gsi(int ioapic, int pin) { return UINT_MAX; }
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static inline int mp_map_gsi_to_irq(u32 gsi, unsigned int flags,
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struct irq_alloc_info *info)
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{
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return gsi;
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}
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static inline void mp_unmap_irq(int irq) { }
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static inline int save_ioapic_entries(void)
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{
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return -ENOMEM;
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}
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static inline void mask_ioapic_entries(void) { }
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static inline int restore_ioapic_entries(void)
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{
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return -ENOMEM;
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}
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static inline void mp_save_irq(struct mpc_intsrc *m) { };
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static inline void disable_ioapic_support(void) { }
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#define native_io_apic_init_mappings NULL
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#define native_io_apic_read NULL
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#define native_io_apic_write NULL
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#define native_io_apic_modify NULL
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#define native_disable_io_apic NULL
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static inline void setup_IO_APIC(void) { }
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static inline void enable_IO_APIC(void) { }
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static inline void setup_ioapic_dest(void) { }
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#endif
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#endif /* _ASM_X86_IO_APIC_H */
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