]>
Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | #ifndef __ASM_APIC_H |
2 | #define __ASM_APIC_H | |
3 | ||
1da177e4 LT |
4 | #include <linux/pm.h> |
5 | #include <asm/fixmap.h> | |
6 | #include <asm/apicdef.h> | |
7 | #include <asm/system.h> | |
8 | ||
9 | #define Dprintk(x...) | |
10 | ||
11 | /* | |
12 | * Debugging macros | |
13 | */ | |
14 | #define APIC_QUIET 0 | |
15 | #define APIC_VERBOSE 1 | |
16 | #define APIC_DEBUG 2 | |
17 | ||
18 | extern int apic_verbosity; | |
73dea47f | 19 | extern int apic_runs_main_timer; |
2c8c0e6b | 20 | extern int ioapic_force; |
b7f5e3c7 | 21 | extern int apic_mapped; |
1da177e4 LT |
22 | |
23 | /* | |
24 | * Define the default level of output to be very little | |
25 | * This can be turned up by using apic=verbose for more | |
26 | * information and apic=debug for _lots_ of information. | |
27 | * apic_verbosity is defined in apic.c | |
28 | */ | |
29 | #define apic_printk(v, s, a...) do { \ | |
30 | if ((v) <= apic_verbosity) \ | |
31 | printk(s, ##a); \ | |
32 | } while (0) | |
33 | ||
1da177e4 LT |
34 | struct pt_regs; |
35 | ||
36 | /* | |
37 | * Basic functions accessing APICs. | |
38 | */ | |
39 | ||
40 | static __inline void apic_write(unsigned long reg, unsigned int v) | |
41 | { | |
42 | *((volatile unsigned int *)(APIC_BASE+reg)) = v; | |
43 | } | |
44 | ||
1da177e4 LT |
45 | static __inline unsigned int apic_read(unsigned long reg) |
46 | { | |
47 | return *((volatile unsigned int *)(APIC_BASE+reg)); | |
48 | } | |
49 | ||
50 | static __inline__ void apic_wait_icr_idle(void) | |
51 | { | |
899ced0d AM |
52 | while (apic_read( APIC_ICR ) & APIC_ICR_BUSY) |
53 | cpu_relax(); | |
1da177e4 LT |
54 | } |
55 | ||
1da177e4 LT |
56 | static inline void ack_APIC_irq(void) |
57 | { | |
58 | /* | |
59 | * ack_APIC_irq() actually gets compiled as a single instruction: | |
60 | * - a single rmw on Pentium/82489DX | |
61 | * - a single write on P6+ cores (CONFIG_X86_GOOD_APIC) | |
62 | * ... yummie. | |
63 | */ | |
64 | ||
65 | /* Docs say use 0 for future compatibility */ | |
11a8e778 | 66 | apic_write(APIC_EOI, 0); |
1da177e4 LT |
67 | } |
68 | ||
69 | extern int get_maxlvt (void); | |
70 | extern void clear_local_APIC (void); | |
71 | extern void connect_bsp_APIC (void); | |
208fb931 | 72 | extern void disconnect_bsp_APIC (int virt_wire_setup); |
1da177e4 LT |
73 | extern void disable_local_APIC (void); |
74 | extern int verify_local_APIC (void); | |
75 | extern void cache_APIC_registers (void); | |
76 | extern void sync_Arb_IDs (void); | |
77 | extern void init_bsp_APIC (void); | |
78 | extern void setup_local_APIC (void); | |
79 | extern void init_apic_mappings (void); | |
80 | extern void smp_local_timer_interrupt (struct pt_regs * regs); | |
81 | extern void setup_boot_APIC_clock (void); | |
82 | extern void setup_secondary_APIC_clock (void); | |
1da177e4 LT |
83 | extern int APIC_init_uniprocessor (void); |
84 | extern void disable_APIC_timer(void); | |
85 | extern void enable_APIC_timer(void); | |
86 | extern void clustered_apic_check(void); | |
87 | ||
17fc14ff JS |
88 | extern void setup_APIC_extened_lvt(unsigned char lvt_off, unsigned char vector, |
89 | unsigned char msg_type, unsigned char mask); | |
90 | ||
91 | #define K8_APIC_EXT_LVT_BASE 0x500 | |
92 | #define K8_APIC_EXT_INT_MSG_FIX 0x0 | |
93 | #define K8_APIC_EXT_INT_MSG_SMI 0x2 | |
94 | #define K8_APIC_EXT_INT_MSG_NMI 0x4 | |
95 | #define K8_APIC_EXT_INT_MSG_EXT 0x7 | |
96 | #define K8_APIC_EXT_LVT_ENTRY_THRESHOLD 0 | |
97 | ||
d25bf7e5 VP |
98 | void smp_send_timer_broadcast_ipi(void); |
99 | void switch_APIC_timer_to_ipi(void *cpumask); | |
100 | void switch_ipi_to_APIC_timer(void *cpumask); | |
101 | ||
102 | #define ARCH_APICTIMER_STOPS_ON_C3 1 | |
103 | ||
1da177e4 LT |
104 | extern unsigned boot_cpu_id; |
105 | ||
106 | #endif /* __ASM_APIC_H */ |