Orange Pi5 kernel

/* 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 CONFIG_SMP
 
#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