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1da177e4 LT |
1 | #ifndef __ASM_APIC_H |
2 | #define __ASM_APIC_H | |
3 | ||
1da177e4 | 4 | #include <linux/pm.h> |
f2b218dd | 5 | #include <linux/delay.h> |
1da177e4 LT |
6 | #include <asm/fixmap.h> |
7 | #include <asm/apicdef.h> | |
9635b47d | 8 | #include <asm/processor.h> |
1da177e4 LT |
9 | #include <asm/system.h> |
10 | ||
11 | #define Dprintk(x...) | |
12 | ||
13 | /* | |
14 | * Debugging macros | |
15 | */ | |
16 | #define APIC_QUIET 0 | |
17 | #define APIC_VERBOSE 1 | |
18 | #define APIC_DEBUG 2 | |
19 | ||
20 | extern int apic_verbosity; | |
21 | ||
22 | /* | |
23 | * Define the default level of output to be very little | |
24 | * This can be turned up by using apic=verbose for more | |
25 | * information and apic=debug for _lots_ of information. | |
26 | * apic_verbosity is defined in apic.c | |
27 | */ | |
28 | #define apic_printk(v, s, a...) do { \ | |
29 | if ((v) <= apic_verbosity) \ | |
30 | printk(s, ##a); \ | |
31 | } while (0) | |
32 | ||
33 | ||
1a3f239d RR |
34 | extern void generic_apic_probe(void); |
35 | ||
1da177e4 LT |
36 | #ifdef CONFIG_X86_LOCAL_APIC |
37 | ||
38 | /* | |
39 | * Basic functions accessing APICs. | |
40 | */ | |
13623d79 RR |
41 | #ifdef CONFIG_PARAVIRT |
42 | #include <asm/paravirt.h> | |
43 | #else | |
44 | #define apic_write native_apic_write | |
45 | #define apic_write_atomic native_apic_write_atomic | |
46 | #define apic_read native_apic_read | |
bbab4f3b ZA |
47 | #define setup_boot_clock setup_boot_APIC_clock |
48 | #define setup_secondary_clock setup_secondary_APIC_clock | |
13623d79 | 49 | #endif |
1da177e4 | 50 | |
13623d79 RR |
51 | static __inline fastcall void native_apic_write(unsigned long reg, |
52 | unsigned long v) | |
1da177e4 LT |
53 | { |
54 | *((volatile unsigned long *)(APIC_BASE+reg)) = v; | |
55 | } | |
56 | ||
13623d79 RR |
57 | static __inline fastcall void native_apic_write_atomic(unsigned long reg, |
58 | unsigned long v) | |
1da177e4 LT |
59 | { |
60 | xchg((volatile unsigned long *)(APIC_BASE+reg), v); | |
61 | } | |
62 | ||
13623d79 | 63 | static __inline fastcall unsigned long native_apic_read(unsigned long reg) |
1da177e4 LT |
64 | { |
65 | return *((volatile unsigned long *)(APIC_BASE+reg)); | |
66 | } | |
67 | ||
f2b218dd FLV |
68 | void apic_wait_icr_idle(void); |
69 | unsigned long safe_apic_wait_icr_idle(void); | |
1da177e4 LT |
70 | int get_physical_broadcast(void); |
71 | ||
72 | #ifdef CONFIG_X86_GOOD_APIC | |
73 | # define FORCE_READ_AROUND_WRITE 0 | |
74 | # define apic_read_around(x) | |
75 | # define apic_write_around(x,y) apic_write((x),(y)) | |
76 | #else | |
77 | # define FORCE_READ_AROUND_WRITE 1 | |
78 | # define apic_read_around(x) apic_read(x) | |
79 | # define apic_write_around(x,y) apic_write_atomic((x),(y)) | |
80 | #endif | |
81 | ||
82 | static inline void ack_APIC_irq(void) | |
83 | { | |
84 | /* | |
85 | * ack_APIC_irq() actually gets compiled as a single instruction: | |
86 | * - a single rmw on Pentium/82489DX | |
87 | * - a single write on P6+ cores (CONFIG_X86_GOOD_APIC) | |
88 | * ... yummie. | |
89 | */ | |
90 | ||
91 | /* Docs say use 0 for future compatibility */ | |
92 | apic_write_around(APIC_EOI, 0); | |
93 | } | |
94 | ||
e05d723f | 95 | extern int lapic_get_maxlvt(void); |
1da177e4 LT |
96 | extern void clear_local_APIC(void); |
97 | extern void connect_bsp_APIC (void); | |
650927ef | 98 | extern void disconnect_bsp_APIC (int virt_wire_setup); |
1da177e4 LT |
99 | extern void disable_local_APIC (void); |
100 | extern void lapic_shutdown (void); | |
101 | extern int verify_local_APIC (void); | |
102 | extern void cache_APIC_registers (void); | |
103 | extern void sync_Arb_IDs (void); | |
104 | extern void init_bsp_APIC (void); | |
105 | extern void setup_local_APIC (void); | |
106 | extern void init_apic_mappings (void); | |
7d12e780 | 107 | extern void smp_local_timer_interrupt (void); |
1da177e4 LT |
108 | extern void setup_boot_APIC_clock (void); |
109 | extern void setup_secondary_APIC_clock (void); | |
1da177e4 | 110 | extern int APIC_init_uniprocessor (void); |
1da177e4 | 111 | |
1da177e4 LT |
112 | extern void enable_NMI_through_LVT0 (void * dummy); |
113 | ||
6eb0a0fd VP |
114 | #define ARCH_APICTIMER_STOPS_ON_C3 1 |
115 | ||
f9262c12 | 116 | extern int timer_over_8254; |
e585bef8 | 117 | extern int local_apic_timer_c2_ok; |
f9262c12 | 118 | |
d3f7eae1 AK |
119 | extern int local_apic_timer_disabled; |
120 | ||
1da177e4 LT |
121 | #else /* !CONFIG_X86_LOCAL_APIC */ |
122 | static inline void lapic_shutdown(void) { } | |
123 | ||
124 | #endif /* !CONFIG_X86_LOCAL_APIC */ | |
125 | ||
126 | #endif /* __ASM_APIC_H */ |