/* SPDX-License-Identifier: GPL-2.0 */ #ifndef __ASM_SMP_H #define __ASM_SMP_H #include <linux/threads.h> #include <linux/cpumask.h> #include <linux/bitops.h> #include <asm/pal.h> /* HACK: Cabrio WHAMI return value is bogus if more than 8 bits used.. :-( */ static __inline__ unsigned char __hard_smp_processor_id(void) { register unsigned char __r0 __asm__("$0"); __asm__ __volatile__( "call_pal %1 #whami" : "=r"(__r0) :"i" (PAL_whami) : "$1", "$22", "$23", "$24", "$25"); return __r0; } #ifdef [31mCONFIG_SMP[0m #include <asm/irq.h> struct cpuinfo_alpha { unsigned long loops_per_jiffy; unsigned long last_asn; int need_new_asn; int asn_lock; unsigned long ipi_count; unsigned long prof_multiplier; unsigned long prof_counter; unsigned char mcheck_expected; unsigned char mcheck_taken; unsigned char mcheck_extra; } __attribute__((aligned(64))); extern struct cpuinfo_alpha cpu_data[NR_CPUS]; #define hard_smp_processor_id() __hard_smp_processor_id() #define raw_smp_processor_id() (current_thread_info()->cpu) extern int smp_num_cpus; extern void arch_send_call_function_single_ipi(int cpu); extern void arch_send_call_function_ipi_mask(const struct cpumask *mask); #else /* CONFIG_SMP */ #define hard_smp_processor_id() 0 #define smp_call_function_on_cpu(func,info,wait,cpu) ({ 0; }) #endif /* CONFIG_SMP */ #define NO_PROC_ID (-1) #endif |