__raw_spin_lock在ARM处理器上的实现/******include/asm-arm/spinlock_types.h***/typedefstruct{volatileunsignedi
1.确定processortypearch/arm/kernel/head.S中:00075:mrcp15,0,r9,c0,c0@getprocessorid00076:bl__lookup_proc
2.确定machinetypearch/arm/kernel/head.S中:00079:bl__lookup_machine_type@r5=machinfo00080:movsr8,r5@inva