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b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
1da177e4 LT |
2 | #ifndef __ASM_SMP_H |
3 | #define __ASM_SMP_H | |
4 | ||
a7e6601f | 5 | extern int init_per_cpu(int cpuid); |
1da177e4 LT |
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 | ||
1da177e4 LT |
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 | ||
d911aed8 | 30 | extern void smp_send_all_nop(void); |
1da177e4 | 31 | |
dbcf4787 | 32 | extern void arch_send_call_function_single_ipi(int cpu); |
91887a36 | 33 | extern void arch_send_call_function_ipi_mask(const struct cpumask *mask); |
dbcf4787 | 34 | |
1da177e4 LT |
35 | #endif /* !ASSEMBLY */ |
36 | ||
39c715b7 | 37 | #define raw_smp_processor_id() (current_thread_info()->cpu) |
1da177e4 | 38 | |
1d4c452a KM |
39 | #else /* CONFIG_SMP */ |
40 | ||
41 | static inline void smp_send_all_nop(void) { return; } | |
42 | ||
43 | #endif | |
1da177e4 LT |
44 | |
45 | #define NO_PROC_ID 0xFF /* No processor magic marker */ | |
46 | #define ANY_PROC_ID 0xFF /* Any processor magic marker */ | |
47 | static inline int __cpu_disable (void) { | |
48 | return 0; | |
49 | } | |
50 | static inline void __cpu_die (unsigned int cpu) { | |
51 | while(1) | |
52 | ; | |
53 | } | |
1da177e4 LT |
54 | |
55 | #endif /* __ASM_SMP_H */ |