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) #include <linux/init.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3) #include <linux/kernel_stat.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4) #include <linux/proc_fs.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5) #include <linux/seq_file.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8)  * /proc/softirqs  ... display the number of softirqs
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) static int show_softirqs(struct seq_file *p, void *v)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) 	int i, j;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) 	seq_puts(p, "                    ");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) 	for_each_possible_cpu(i)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) 		seq_printf(p, "CPU%-8d", i);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) 	seq_putc(p, '\n');
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) 	for (i = 0; i < NR_SOFTIRQS; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) 		seq_printf(p, "%12s:", softirq_to_name[i]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) 		for_each_possible_cpu(j)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) 			seq_printf(p, " %10u", kstat_softirqs_cpu(i, j));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) 		seq_putc(p, '\n');
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) static int __init proc_softirqs_init(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) 	proc_create_single("softirqs", 0, NULL, show_softirqs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) fs_initcall(proc_softirqs_init);