1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef __ASM_SMP_H
3 #define __ASM_SMP_H
4
5 extern int init_per_cpu(int cpuid);
6
7 #if defined(CONFIG_SMP)
8
9 /* Page Zero Location PDC will look for the address to branch to when we poke
10 ** slave CPUs still in "Icache loop".
11 */
12 #define PDC_OS_BOOT_RENDEZVOUS 0x10
13 #define PDC_OS_BOOT_RENDEZVOUS_HI 0x28
14
15 #ifndef ASSEMBLY
16 #include <linux/bitops.h>
17 #include <linux/threads.h> /* for NR_CPUS */
18 #include <linux/cpumask.h>
19 typedef unsigned long address_t;
20
21
22 /*
23 * Private routines/data
24 *
25 * physical and logical are equivalent until we support CPU hotplug.
26 */
27 #define cpu_number_map(cpu) (cpu)
28 #define cpu_logical_map(cpu) (cpu)
29
30 extern void smp_send_all_nop(void);
31
32 extern void arch_send_call_function_single_ipi(int cpu);
33 extern void arch_send_call_function_ipi_mask(const struct cpumask *mask);
34
35 #define raw_smp_processor_id() (current_thread_info()->cpu)
36
37 #endif /* !ASSEMBLY */
38
39 #else /* CONFIG_SMP */
40
41 static inline void smp_send_all_nop(void) { return; }
42
43 #endif
44
45 #define NO_PROC_ID 0xFF /* No processor magic marker */
46 #define ANY_PROC_ID 0xFF /* Any processor magic marker */
47 int __cpu_disable(void);
48 void __cpu_die(unsigned int cpu);
49
50 #endif /* __ASM_SMP_H */
51
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