diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
---|---|---|
committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /include/asm-i386/apic.h |
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'include/asm-i386/apic.h')
-rw-r--r-- | include/asm-i386/apic.h | 126 |
1 files changed, 126 insertions, 0 deletions
diff --git a/include/asm-i386/apic.h b/include/asm-i386/apic.h new file mode 100644 index 000000000000..e1de67483f38 --- /dev/null +++ b/include/asm-i386/apic.h | |||
@@ -0,0 +1,126 @@ | |||
1 | #ifndef __ASM_APIC_H | ||
2 | #define __ASM_APIC_H | ||
3 | |||
4 | #include <linux/config.h> | ||
5 | #include <linux/pm.h> | ||
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; | ||
20 | |||
21 | /* | ||
22 | * Define the default level of output to be very little | ||
23 | * This can be turned up by using apic=verbose for more | ||
24 | * information and apic=debug for _lots_ of information. | ||
25 | * apic_verbosity is defined in apic.c | ||
26 | */ | ||
27 | #define apic_printk(v, s, a...) do { \ | ||
28 | if ((v) <= apic_verbosity) \ | ||
29 | printk(s, ##a); \ | ||
30 | } while (0) | ||
31 | |||
32 | |||
33 | #ifdef CONFIG_X86_LOCAL_APIC | ||
34 | |||
35 | /* | ||
36 | * Basic functions accessing APICs. | ||
37 | */ | ||
38 | |||
39 | static __inline void apic_write(unsigned long reg, unsigned long v) | ||
40 | { | ||
41 | *((volatile unsigned long *)(APIC_BASE+reg)) = v; | ||
42 | } | ||
43 | |||
44 | static __inline void apic_write_atomic(unsigned long reg, unsigned long v) | ||
45 | { | ||
46 | xchg((volatile unsigned long *)(APIC_BASE+reg), v); | ||
47 | } | ||
48 | |||
49 | static __inline unsigned long apic_read(unsigned long reg) | ||
50 | { | ||
51 | return *((volatile unsigned long *)(APIC_BASE+reg)); | ||
52 | } | ||
53 | |||
54 | static __inline__ void apic_wait_icr_idle(void) | ||
55 | { | ||
56 | while ( apic_read( APIC_ICR ) & APIC_ICR_BUSY ) | ||
57 | cpu_relax(); | ||
58 | } | ||
59 | |||
60 | int get_physical_broadcast(void); | ||
61 | |||
62 | #ifdef CONFIG_X86_GOOD_APIC | ||
63 | # define FORCE_READ_AROUND_WRITE 0 | ||
64 | # define apic_read_around(x) | ||
65 | # define apic_write_around(x,y) apic_write((x),(y)) | ||
66 | #else | ||
67 | # define FORCE_READ_AROUND_WRITE 1 | ||
68 | # define apic_read_around(x) apic_read(x) | ||
69 | # define apic_write_around(x,y) apic_write_atomic((x),(y)) | ||
70 | #endif | ||
71 | |||
72 | static inline void ack_APIC_irq(void) | ||
73 | { | ||
74 | /* | ||
75 | * ack_APIC_irq() actually gets compiled as a single instruction: | ||
76 | * - a single rmw on Pentium/82489DX | ||
77 | * - a single write on P6+ cores (CONFIG_X86_GOOD_APIC) | ||
78 | * ... yummie. | ||
79 | */ | ||
80 | |||
81 | /* Docs say use 0 for future compatibility */ | ||
82 | apic_write_around(APIC_EOI, 0); | ||
83 | } | ||
84 | |||
85 | extern void (*wait_timer_tick)(void); | ||
86 | |||
87 | extern int get_maxlvt(void); | ||
88 | extern void clear_local_APIC(void); | ||
89 | extern void connect_bsp_APIC (void); | ||
90 | extern void disconnect_bsp_APIC (void); | ||
91 | extern void disable_local_APIC (void); | ||
92 | extern void lapic_shutdown (void); | ||
93 | extern int verify_local_APIC (void); | ||
94 | extern void cache_APIC_registers (void); | ||
95 | extern void sync_Arb_IDs (void); | ||
96 | extern void init_bsp_APIC (void); | ||
97 | extern void setup_local_APIC (void); | ||
98 | extern void init_apic_mappings (void); | ||
99 | extern void smp_local_timer_interrupt (struct pt_regs * regs); | ||
100 | extern void setup_boot_APIC_clock (void); | ||
101 | extern void setup_secondary_APIC_clock (void); | ||
102 | extern void setup_apic_nmi_watchdog (void); | ||
103 | extern int reserve_lapic_nmi(void); | ||
104 | extern void release_lapic_nmi(void); | ||
105 | extern void disable_timer_nmi_watchdog(void); | ||
106 | extern void enable_timer_nmi_watchdog(void); | ||
107 | extern void nmi_watchdog_tick (struct pt_regs * regs); | ||
108 | extern int APIC_init_uniprocessor (void); | ||
109 | extern void disable_APIC_timer(void); | ||
110 | extern void enable_APIC_timer(void); | ||
111 | |||
112 | extern int check_nmi_watchdog (void); | ||
113 | extern void enable_NMI_through_LVT0 (void * dummy); | ||
114 | |||
115 | extern unsigned int nmi_watchdog; | ||
116 | #define NMI_NONE 0 | ||
117 | #define NMI_IO_APIC 1 | ||
118 | #define NMI_LOCAL_APIC 2 | ||
119 | #define NMI_INVALID 3 | ||
120 | |||
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 */ | ||