From 2c3c1048746a4622d8c89a29670120dc8fab93c4 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 20:49:45 +0200 Subject: Adding upstream version 6.1.76. Signed-off-by: Daniel Baumann --- arch/sh/include/asm/smp.h | 83 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 83 insertions(+) create mode 100644 arch/sh/include/asm/smp.h (limited to 'arch/sh/include/asm/smp.h') diff --git a/arch/sh/include/asm/smp.h b/arch/sh/include/asm/smp.h new file mode 100644 index 000000000..199381f77 --- /dev/null +++ b/arch/sh/include/asm/smp.h @@ -0,0 +1,83 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __ASM_SH_SMP_H +#define __ASM_SH_SMP_H + +#include +#include +#include + +#ifdef CONFIG_SMP + +#include +#include +#include + +#define raw_smp_processor_id() (current_thread_info()->cpu) + +/* Map from cpu id to sequential logical cpu number. */ +extern int __cpu_number_map[NR_CPUS]; +#define cpu_number_map(cpu) __cpu_number_map[cpu] + +/* The reverse map from sequential logical cpu number to cpu id. */ +extern int __cpu_logical_map[NR_CPUS]; +#define cpu_logical_map(cpu) __cpu_logical_map[cpu] + +enum { + SMP_MSG_FUNCTION, + SMP_MSG_RESCHEDULE, + SMP_MSG_FUNCTION_SINGLE, + SMP_MSG_TIMER, + + SMP_MSG_NR, /* must be last */ +}; + +DECLARE_PER_CPU(int, cpu_state); + +void smp_message_recv(unsigned int msg); + +void arch_send_call_function_single_ipi(int cpu); +void arch_send_call_function_ipi_mask(const struct cpumask *mask); + +void native_play_dead(void); +void native_cpu_die(unsigned int cpu); +int native_cpu_disable(unsigned int cpu); + +#ifdef CONFIG_HOTPLUG_CPU +void play_dead_common(void); +extern int __cpu_disable(void); + +static inline void __cpu_die(unsigned int cpu) +{ + extern struct plat_smp_ops *mp_ops; /* private */ + + mp_ops->cpu_die(cpu); +} +#endif + +static inline int hard_smp_processor_id(void) +{ + extern struct plat_smp_ops *mp_ops; /* private */ + + if (!mp_ops) + return 0; /* boot CPU */ + + return mp_ops->smp_processor_id(); +} + +struct of_cpu_method { + const char *method; + struct plat_smp_ops *ops; +}; + +#define CPU_METHOD_OF_DECLARE(name, _method, _ops) \ + static const struct of_cpu_method __cpu_method_of_table_##name \ + __used __section("__cpu_method_of_table") \ + = { .method = _method, .ops = _ops } + +#else + +#define hard_smp_processor_id() (0) + +#endif /* CONFIG_SMP */ + +#endif /* __ASM_SH_SMP_H */ -- cgit v1.2.3