70 lines
2.3 KiB
C
70 lines
2.3 KiB
C
/*
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* Copyright (c) 2006-2024 RT-Thread Development Team
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Change Logs:
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* Date Author Notes
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* 2024/9/12 zhujiale the first version
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* 2024/10/24 Shell added non-blocking IPI calling method
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*/
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#ifndef __SMP_IPI_H__
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#define __SMP_IPI_H__
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#include <rtthread.h>
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/* callback of smp call */
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typedef void (*rt_smp_call_cb_t)(void *data);
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typedef rt_bool_t (*rt_smp_cond_t)(int cpu, void *info);
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#define SMP_CALL_EVENT_GLOB_ASYNC 0x1
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#define SMP_CALL_EVENT_GLOB_SYNC 0x2
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#define SMP_CALL_EVENT_REQUEST 0x4
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#define SMP_CALL_WAIT_ALL (1ul << 0)
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#define SMP_CALL_NO_LOCAL (1ul << 1)
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#define SMP_CALL_SIGNAL (1ul << 2)
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#define RT_ALL_CPU ((1 << RT_CPUS_NR) - 1)
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struct rt_smp_event
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{
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int event_id;
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void *data;
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rt_smp_call_cb_t func;
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union
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{
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rt_atomic_t *calling_cpu_mask;
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rt_atomic_t usage_tracer;
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} typed;
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};
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struct rt_smp_call_req
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{
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/* handle the busy status synchronization */
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rt_hw_spinlock_t freed_lock;
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struct rt_smp_event event;
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rt_ll_slist_t slist_node;
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};
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void rt_smp_call_ipi_handler(int vector, void *param);
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void rt_smp_call_each_cpu(rt_smp_call_cb_t func, void *data, rt_uint8_t flags);
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void rt_smp_call_each_cpu_cond(rt_smp_call_cb_t func, void *data, rt_uint8_t flag, rt_smp_cond_t cond_func);
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void rt_smp_call_cpu_mask(rt_ubase_t cpu_mask, rt_smp_call_cb_t func, void *data, rt_uint8_t flags);
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void rt_smp_call_cpu_mask_cond(rt_ubase_t cpu_mask, rt_smp_call_cb_t func, void *data, rt_uint8_t flag, rt_smp_cond_t cond_func);
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void rt_smp_call_init(void);
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rt_err_t rt_smp_call_request(int callcpu, rt_uint8_t flags, struct rt_smp_call_req *call_req);
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void rt_smp_call_req_init(struct rt_smp_call_req *call_req,
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rt_smp_call_cb_t func, void *data);
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void rt_smp_request_wait_freed(struct rt_smp_call_req *req);
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#define rt_smp_for_each_cpu(_iter) for (_iter = 0; (_iter) < RT_CPUS_NR; (_iter)++)
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rt_inline size_t rt_smp_get_next_remote(size_t iter, size_t cpuid)
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{
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iter++;
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return iter == cpuid ? iter + 1 : iter;
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}
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#define rt_smp_for_each_remote_cpu(_iter, _cpuid) for (_iter = rt_smp_get_next_remote(-1, _cpuid); (_iter) < RT_CPUS_NR; _iter=rt_smp_get_next_remote(_iter, _cpuid))
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#endif
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