Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) /* SPDX-License-Identifier: GPL-2.0 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) #ifndef __TRACE_AGENT_H__
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3) #define __TRACE_AGENT_H__
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4) #include <pthread.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5) #include <stdbool.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7) #define MAX_CPUS	256
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8) #define PIPE_INIT       (1024*1024)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11)  * agent_info - structure managing total information of guest agent
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12)  * @pipe_size:	size of pipe (default 1MB)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13)  * @use_stdout:	set to true when o option is added (default false)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14)  * @cpus:	total number of CPUs
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15)  * @ctl_fd:	fd of control path, /dev/virtio-ports/agent-ctl-path
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16)  * @rw_ti:	structure managing information of read/write threads
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) struct agent_info {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) 	unsigned long pipe_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) 	bool use_stdout;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) 	int cpus;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) 	int ctl_fd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) 	struct rw_thread_info *rw_ti[MAX_CPUS];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27)  * rw_thread_info - structure managing a read/write thread a cpu
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28)  * @cpu_num:	cpu number operating this read/write thread
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29)  * @in_fd:	fd of reading trace data path in cpu_num
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30)  * @out_fd:	fd of writing trace data path in cpu_num
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31)  * @read_pipe:	fd of read pipe
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32)  * @write_pipe:	fd of write pipe
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33)  * @pipe_size:	size of pipe (default 1MB)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) struct rw_thread_info {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) 	int cpu_num;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) 	int in_fd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) 	int out_fd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) 	int read_pipe;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) 	int write_pipe;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) 	unsigned long pipe_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) /* use for stopping rw threads */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) extern bool global_sig_receive;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) /* use for notification */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) extern bool global_run_operation;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) extern pthread_mutex_t mutex_notify;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) extern pthread_cond_t cond_wakeup;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) /* for controller of read/write threads */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) extern int rw_ctl_init(const char *ctl_path);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) extern void *rw_ctl_loop(int ctl_fd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) /* for trace read/write thread */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) extern void *rw_thread_info_new(void);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) extern void *rw_thread_init(int cpu, const char *in_path, const char *out_path,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) 			bool stdout_flag, unsigned long pipe_size,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) 			struct rw_thread_info *rw_ti);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) extern pthread_t rw_thread_run(struct rw_thread_info *rw_ti);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) static inline void *zalloc(size_t size)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) 	return calloc(1, size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) #define pr_err(format, ...) fprintf(stderr, format, ## __VA_ARGS__)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) #define pr_info(format, ...) fprintf(stdout, format, ## __VA_ARGS__)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) #ifdef DEBUG
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) #define pr_debug(format, ...) fprintf(stderr, format, ## __VA_ARGS__)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) #define pr_debug(format, ...) do {} while (0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) #endif /*__TRACE_AGENT_H__*/