1#ifndef _ASM_GENAPIC_H
2#define _ASM_GENAPIC_H 1
3
4#include <asm/mpspec.h>
5
6/*
7 * Generic APIC driver interface.
8 *
9 * An straight forward mapping of the APIC related parts of the
10 * x86 subarchitecture interface to a dynamic object.
11 *
12 * This is used by the "generic" x86 subarchitecture.
13 *
14 * Copyright 2003 Andi Kleen, SuSE Labs.
15 */
16
17struct mpc_config_translation;
18struct mpc_config_bus;
19struct mp_config_table;
20struct mpc_config_processor;
21
22struct genapic {
23	char *name;
24	int (*probe)(void);
25
26	int (*apic_id_registered)(void);
27	cpumask_t (*target_cpus)(void);
28	int int_delivery_mode;
29	int int_dest_mode;
30	int ESR_DISABLE;
31	int apic_destination_logical;
32	unsigned long (*check_apicid_used)(physid_mask_t bitmap, int apicid);
33	unsigned long (*check_apicid_present)(int apicid);
34	int no_balance_irq;
35	int no_ioapic_check;
36	void (*init_apic_ldr)(void);
37	physid_mask_t (*ioapic_phys_id_map)(physid_mask_t map);
38
39	void (*setup_apic_routing)(void);
40	int (*multi_timer_check)(int apic, int irq);
41	int (*apicid_to_node)(int logical_apicid);
42	int (*cpu_to_logical_apicid)(int cpu);
43	int (*cpu_present_to_apicid)(int mps_cpu);
44	physid_mask_t (*apicid_to_cpu_present)(int phys_apicid);
45	int (*mpc_apic_id)(struct mpc_config_processor *m,
46			   struct mpc_config_translation *t);
47	void (*setup_portio_remap)(void);
48	int (*check_phys_apicid_present)(int boot_cpu_physical_apicid);
49	void (*enable_apic_mode)(void);
50	u32 (*phys_pkg_id)(u32 cpuid_apic, int index_msb);
51
52	/* mpparse */
53	void (*mpc_oem_bus_info)(struct mpc_config_bus *, char *,
54				 struct mpc_config_translation *);
55	void (*mpc_oem_pci_bus)(struct mpc_config_bus *,
56				struct mpc_config_translation *);
57
58	/* When one of the next two hooks returns 1 the genapic
59	   is switched to this. Essentially they are additional probe
60	   functions. */
61	int (*mps_oem_check)(struct mp_config_table *mpc, char *oem,
62			      char *productid);
63	int (*acpi_madt_oem_check)(char *oem_id, char *oem_table_id);
64
65	unsigned (*get_apic_id)(unsigned long x);
66	unsigned long apic_id_mask;
67	unsigned int (*cpu_mask_to_apicid)(cpumask_t cpumask);
68
69#ifdef CONFIG_SMP
70	/* ipi */
71	void (*send_IPI_mask)(cpumask_t mask, int vector);
72	void (*send_IPI_allbutself)(int vector);
73	void (*send_IPI_all)(int vector);
74#endif
75};
76
77#define APICFUNC(x) .x = x,
78
79/* More functions could be probably marked IPIFUNC and save some space
80   in UP GENERICARCH kernels, but I don't have the nerve right now
81   to untangle this mess. -AK  */
82#ifdef CONFIG_SMP
83#define IPIFUNC(x) APICFUNC(x)
84#else
85#define IPIFUNC(x)
86#endif
87
88#define APIC_INIT(aname, aprobe) { \
89	.name = aname, \
90	.probe = aprobe, \
91	.int_delivery_mode = INT_DELIVERY_MODE, \
92	.int_dest_mode = INT_DEST_MODE, \
93	.no_balance_irq = NO_BALANCE_IRQ, \
94	.ESR_DISABLE = esr_disable, \
95	.apic_destination_logical = APIC_DEST_LOGICAL, \
96	APICFUNC(apic_id_registered) \
97	APICFUNC(target_cpus) \
98	APICFUNC(check_apicid_used) \
99	APICFUNC(check_apicid_present) \
100	APICFUNC(init_apic_ldr) \
101	APICFUNC(ioapic_phys_id_map) \
102	APICFUNC(setup_apic_routing) \
103	APICFUNC(multi_timer_check) \
104	APICFUNC(apicid_to_node) \
105	APICFUNC(cpu_to_logical_apicid) \
106	APICFUNC(cpu_present_to_apicid) \
107	APICFUNC(apicid_to_cpu_present) \
108	APICFUNC(mpc_apic_id) \
109	APICFUNC(setup_portio_remap) \
110	APICFUNC(check_phys_apicid_present) \
111	APICFUNC(mpc_oem_bus_info) \
112	APICFUNC(mpc_oem_pci_bus) \
113	APICFUNC(mps_oem_check) \
114	APICFUNC(get_apic_id) \
115	.apic_id_mask = APIC_ID_MASK, \
116	APICFUNC(cpu_mask_to_apicid) \
117	APICFUNC(acpi_madt_oem_check) \
118	IPIFUNC(send_IPI_mask) \
119	IPIFUNC(send_IPI_allbutself) \
120	IPIFUNC(send_IPI_all) \
121	APICFUNC(enable_apic_mode) \
122	APICFUNC(phys_pkg_id) \
123	}
124
125extern struct genapic *genapic;
126
127#endif
128