/* smp.h: Sparc64 specific SMP stuff. * * Copyright (C) 1996 David S. Miller (davem@caip.rutgers.edu) */ #ifndef _SPARC64_SMP_H #define _SPARC64_SMP_H #include <linux/config.h> #include <linux/threads.h> #include <asm/asi.h> #include <asm/starfire.h> #include <asm/spitfire.h> #ifndef __ASSEMBLY__ #include <linux/cpumask.h> #include <linux/cache.h> #endif /* !(__ASSEMBLY__) */ #ifdef CONFIG_SMP #ifndef __ASSEMBLY__ /* * Private routines/data */ #include <asm/bitops.h> #include <asm/atomic.h> extern cpumask_t phys_cpu_present_map; #define cpu_possible_map phys_cpu_present_map /* * General functions that each host system must provide. */ static __inline__ int hard_smp_processor_id(void) { if (tlb_type == cheetah || tlb_type == cheetah_plus) { unsigned long cfg, ver; __asm__ __volatile__("rdpr %%ver, %0" : "=r" (ver)); if ((ver >> 32) == 0x003e0016) { __asm__ __volatile__("ldxa [%%g0] %1, %0" : "=r" (cfg) : "i" (ASI_JBUS_CONFIG)); return ((cfg >> 17) & 0x1f); } else { __asm__ __volatile__("ldxa [%%g0] %1, %0" : "=r" (cfg) : "i" (ASI_SAFARI_CONFIG)); return ((cfg >> 17) & 0x3ff); } } else if (this_is_starfire != 0) { return starfire_hard_smp_processor_id(); } else { unsigned long upaconfig; __asm__ __volatile__("ldxa [%%g0] %1, %0" : "=r" (upaconfig) : "i" (ASI_UPA_CONFIG)); return ((upaconfig >> 17) & 0x1f); } } #define raw_smp_processor_id() (current_thread_info()->cpu) #endif /* !(__ASSEMBLY__) */ #endif /* !(CONFIG_SMP) */ #define NO_PROC_ID 0xFF #endif /* !(_SPARC64_SMP_H) */