| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | #ifndef __ASM_MACH_WAKECPU_H | 
|  | 2 | #define __ASM_MACH_WAKECPU_H | 
|  | 3 |  | 
|  | 4 | /* This file copes with machines that wakeup secondary CPUs by NMIs */ | 
|  | 5 |  | 
|  | 6 | #define WAKE_SECONDARY_VIA_NMI | 
|  | 7 |  | 
|  | 8 | #define TRAMPOLINE_LOW phys_to_virt(0x8) | 
|  | 9 | #define TRAMPOLINE_HIGH phys_to_virt(0xa) | 
|  | 10 |  | 
|  | 11 | #define boot_cpu_apicid boot_cpu_logical_apicid | 
|  | 12 |  | 
|  | 13 | /* We don't do anything here because we use NMI's to boot instead */ | 
|  | 14 | static inline void wait_for_init_deassert(atomic_t *deassert) | 
|  | 15 | { | 
|  | 16 | } | 
|  | 17 |  | 
|  | 18 | /* | 
|  | 19 | * Because we use NMIs rather than the INIT-STARTUP sequence to | 
|  | 20 | * bootstrap the CPUs, the APIC may be in a weird state. Kick it. | 
|  | 21 | */ | 
|  | 22 | static inline void smp_callin_clear_local_apic(void) | 
|  | 23 | { | 
|  | 24 | clear_local_APIC(); | 
|  | 25 | } | 
|  | 26 |  | 
|  | 27 | static inline void store_NMI_vector(unsigned short *high, unsigned short *low) | 
|  | 28 | { | 
|  | 29 | printk("Storing NMI vector\n"); | 
|  | 30 | *high = *((volatile unsigned short *) TRAMPOLINE_HIGH); | 
|  | 31 | *low = *((volatile unsigned short *) TRAMPOLINE_LOW); | 
|  | 32 | } | 
|  | 33 |  | 
|  | 34 | static inline void restore_NMI_vector(unsigned short *high, unsigned short *low) | 
|  | 35 | { | 
|  | 36 | printk("Restoring NMI vector\n"); | 
|  | 37 | *((volatile unsigned short *) TRAMPOLINE_HIGH) = *high; | 
|  | 38 | *((volatile unsigned short *) TRAMPOLINE_LOW) = *low; | 
|  | 39 | } | 
|  | 40 |  | 
|  | 41 | #define inquire_remote_apic(apicid) {} | 
|  | 42 |  | 
|  | 43 | #endif /* __ASM_MACH_WAKECPU_H */ |