projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 67c5fc5c TG |
1 | #ifndef _ASM_X86_APIC_H |
| 2 | #define _ASM_X86_APIC_H | |
| 3 | ||
| 4 | #include <linux/pm.h> | |
| 5 | #include <linux/delay.h> | |
| 6 | #include <asm/fixmap.h> | |
| 7 | #include <asm/apicdef.h> | |
| 8 | #include <asm/processor.h> | |
| 9 | #include <asm/system.h> | |
| 10 | ||
| 11 | #define ARCH_APICTIMER_STOPS_ON_C3 1 | |
| 12 | ||
| 13 | #define Dprintk(x...) | |
| 14 | ||
| 15 | /* | |
| 16 | * Debugging macros | |
| 17 | */ | |
| 18 | #define APIC_QUIET 0 | |
| 19 | #define APIC_VERBOSE 1 | |
| 20 | #define APIC_DEBUG 2 | |
| 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 | ||
| 34 | extern void generic_apic_probe(void); | |
| 35 | ||
| 36 | #ifdef CONFIG_X86_LOCAL_APIC | |
| 37 | ||
| 38 | extern int apic_verbosity; | |
| 39 | extern int timer_over_8254; | |
| 40 | extern int local_apic_timer_c2_ok; | |
| 41 | extern int local_apic_timer_disabled; | |
| 42 | ||
| 43 | extern int apic_runs_main_timer; | |
| 44 | extern int ioapic_force; | |
| ae9d983b | 45 | extern int disable_apic; |
| 67c5fc5c TG |
46 | extern int disable_apic_timer; |
| 47 | extern unsigned boot_cpu_id; | |
| 48 | ||
| 49 | /* | |
| 50 | * Basic functions accessing APICs. | |
| 51 | */ | |
| 52 | #ifdef CONFIG_PARAVIRT | |
| 53 | #include <asm/paravirt.h> | |
| 96a388de | 54 | #else |
| 67c5fc5c TG |
55 | #define apic_write native_apic_write |
| 56 | #define apic_write_atomic native_apic_write_atomic | |
| 57 | #define apic_read native_apic_read | |
| 58 | #define setup_boot_clock setup_boot_APIC_clock | |
| 59 | #define setup_secondary_clock setup_secondary_APIC_clock | |
| 96a388de | 60 | #endif |
| 67c5fc5c TG |
61 | |
| 62 | static inline fastcall void native_apic_write(unsigned long reg, u32 v) | |
| 63 | { | |
| 64 | *((volatile u32 *)(APIC_BASE + reg)) = v; | |
| 65 | } | |
| 66 | ||
| 67 | static inline fastcall void native_apic_write_atomic(unsigned long reg, u32 v) | |
| 68 | { | |
| 69 | (void) xchg((u32*)(APIC_BASE + reg), v); | |
| 70 | } | |
| 71 | ||
| 72 | static inline fastcall u32 native_apic_read(unsigned long reg) | |
| 73 | { | |
| 74 | return *((volatile u32 *)(APIC_BASE + reg)); | |
| 75 | } | |
| 76 | ||
| 77 | extern void apic_wait_icr_idle(void); | |
| 78 | extern u32 safe_apic_wait_icr_idle(void); | |
| 79 | extern int get_physical_broadcast(void); | |
| 80 | ||
| 81 | #ifdef CONFIG_X86_GOOD_APIC | |
| 82 | # define FORCE_READ_AROUND_WRITE 0 | |
| 83 | # define apic_read_around(x) | |
| 84 | # define apic_write_around(x, y) apic_write((x), (y)) | |
| 85 | #else | |
| 86 | # define FORCE_READ_AROUND_WRITE 1 | |
| 87 | # define apic_read_around(x) apic_read(x) | |
| 88 | # define apic_write_around(x, y) apic_write_atomic((x), (y)) | |
| 89 | #endif | |
| 90 | ||
| 91 | static inline void ack_APIC_irq(void) | |
| 92 | { | |
| 93 | /* | |
| 94 | * ack_APIC_irq() actually gets compiled as a single instruction: | |
| 95 | * - a single rmw on Pentium/82489DX | |
| 96 | * - a single write on P6+ cores (CONFIG_X86_GOOD_APIC) | |
| 97 | * ... yummie. | |
| 98 | */ | |
| 99 | ||
| 100 | /* Docs say use 0 for future compatibility */ | |
| 101 | apic_write_around(APIC_EOI, 0); | |
| 102 | } | |
| 103 | ||
| 104 | extern int lapic_get_maxlvt(void); | |
| 105 | extern void clear_local_APIC(void); | |
| 106 | extern void connect_bsp_APIC(void); | |
| 107 | extern void disconnect_bsp_APIC(int virt_wire_setup); | |
| 108 | extern void disable_local_APIC(void); | |
| 109 | extern void lapic_shutdown(void); | |
| 110 | extern int verify_local_APIC(void); | |
| 111 | extern void cache_APIC_registers(void); | |
| 112 | extern void sync_Arb_IDs(void); | |
| 113 | extern void init_bsp_APIC(void); | |
| 114 | extern void setup_local_APIC(void); | |
| 115 | extern void init_apic_mappings(void); | |
| 67c5fc5c TG |
116 | extern void setup_boot_APIC_clock(void); |
| 117 | extern void setup_secondary_APIC_clock(void); | |
| 118 | extern int APIC_init_uniprocessor(void); | |
| 119 | extern void enable_NMI_through_LVT0(void *dummy); | |
| 120 | ||
| 121 | /* | |
| 122 | * On 32bit this is mach-xxx local | |
| 123 | */ | |
| 124 | #ifdef CONFIG_X86_64 | |
| 125 | extern void setup_apic_routing(void); | |
| 126 | #endif | |
| 127 | ||
| 128 | extern void setup_APIC_extended_lvt(unsigned char lvt_off, unsigned char vector, | |
| 129 | unsigned char msg_type, unsigned char mask); | |
| 130 | ||
| 131 | extern int apic_is_clustered_box(void); | |
| 132 | ||
| 133 | #else /* !CONFIG_X86_LOCAL_APIC */ | |
| 134 | static inline void lapic_shutdown(void) { } | |
| 135 | #define local_apic_timer_c2_ok 1 | |
| 136 | ||
| 137 | #endif /* !CONFIG_X86_LOCAL_APIC */ | |
| 138 | ||
| 139 | #endif /* __ASM_APIC_H */ |