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1da177e4 LT |
1 | #ifndef __ASM_APIC_H |
2 | #define __ASM_APIC_H | |
3 | ||
1da177e4 | 4 | #include <linux/pm.h> |
8339e9fb | 5 | #include <linux/delay.h> |
1da177e4 LT |
6 | #include <asm/fixmap.h> |
7 | #include <asm/apicdef.h> | |
8 | #include <asm/system.h> | |
9 | ||
10 | #define Dprintk(x...) | |
11 | ||
12 | /* | |
13 | * Debugging macros | |
14 | */ | |
15 | #define APIC_QUIET 0 | |
16 | #define APIC_VERBOSE 1 | |
17 | #define APIC_DEBUG 2 | |
18 | ||
19 | extern int apic_verbosity; | |
73dea47f | 20 | extern int apic_runs_main_timer; |
2c8c0e6b | 21 | extern int ioapic_force; |
fb79d22e | 22 | extern int disable_apic_timer; |
1da177e4 LT |
23 | |
24 | /* | |
25 | * Define the default level of output to be very little | |
26 | * This can be turned up by using apic=verbose for more | |
27 | * information and apic=debug for _lots_ of information. | |
28 | * apic_verbosity is defined in apic.c | |
29 | */ | |
30 | #define apic_printk(v, s, a...) do { \ | |
31 | if ((v) <= apic_verbosity) \ | |
32 | printk(s, ##a); \ | |
33 | } while (0) | |
34 | ||
1da177e4 LT |
35 | struct pt_regs; |
36 | ||
37 | /* | |
38 | * Basic functions accessing APICs. | |
39 | */ | |
40 | ||
41 | static __inline void apic_write(unsigned long reg, unsigned int v) | |
42 | { | |
43 | *((volatile unsigned int *)(APIC_BASE+reg)) = v; | |
44 | } | |
45 | ||
1da177e4 LT |
46 | static __inline unsigned int apic_read(unsigned long reg) |
47 | { | |
48 | return *((volatile unsigned int *)(APIC_BASE+reg)); | |
49 | } | |
50 | ||
8339e9fb FLV |
51 | extern void apic_wait_icr_idle(void); |
52 | extern unsigned int safe_apic_wait_icr_idle(void); | |
1da177e4 | 53 | |
1da177e4 LT |
54 | static inline void ack_APIC_irq(void) |
55 | { | |
56 | /* | |
57 | * ack_APIC_irq() actually gets compiled as a single instruction: | |
58 | * - a single rmw on Pentium/82489DX | |
59 | * - a single write on P6+ cores (CONFIG_X86_GOOD_APIC) | |
60 | * ... yummie. | |
61 | */ | |
62 | ||
63 | /* Docs say use 0 for future compatibility */ | |
11a8e778 | 64 | apic_write(APIC_EOI, 0); |
1da177e4 LT |
65 | } |
66 | ||
67 | extern int get_maxlvt (void); | |
68 | extern void clear_local_APIC (void); | |
69 | extern void connect_bsp_APIC (void); | |
208fb931 | 70 | extern void disconnect_bsp_APIC (int virt_wire_setup); |
1da177e4 LT |
71 | extern void disable_local_APIC (void); |
72 | extern int verify_local_APIC (void); | |
73 | extern void cache_APIC_registers (void); | |
74 | extern void sync_Arb_IDs (void); | |
75 | extern void init_bsp_APIC (void); | |
76 | extern void setup_local_APIC (void); | |
77 | extern void init_apic_mappings (void); | |
7d12e780 | 78 | extern void smp_local_timer_interrupt (void); |
1da177e4 LT |
79 | extern void setup_boot_APIC_clock (void); |
80 | extern void setup_secondary_APIC_clock (void); | |
1da177e4 | 81 | extern int APIC_init_uniprocessor (void); |
3c43f039 | 82 | extern void setup_apic_routing(void); |
1da177e4 | 83 | |
f40f31bf TG |
84 | extern void setup_APIC_extended_lvt(unsigned char lvt_off, unsigned char vector, |
85 | unsigned char msg_type, unsigned char mask); | |
17fc14ff | 86 | |
55f93afd CW |
87 | extern int apic_is_clustered_box(void); |
88 | ||
17fc14ff JS |
89 | #define K8_APIC_EXT_LVT_BASE 0x500 |
90 | #define K8_APIC_EXT_INT_MSG_FIX 0x0 | |
91 | #define K8_APIC_EXT_INT_MSG_SMI 0x2 | |
92 | #define K8_APIC_EXT_INT_MSG_NMI 0x4 | |
93 | #define K8_APIC_EXT_INT_MSG_EXT 0x7 | |
94 | #define K8_APIC_EXT_LVT_ENTRY_THRESHOLD 0 | |
95 | ||
d25bf7e5 VP |
96 | #define ARCH_APICTIMER_STOPS_ON_C3 1 |
97 | ||
1da177e4 | 98 | extern unsigned boot_cpu_id; |
2e7c2838 | 99 | extern int local_apic_timer_c2_ok; |
1da177e4 LT |
100 | |
101 | #endif /* __ASM_APIC_H */ |