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) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3)  *	Copyright IBM Corp. 2001, 2007
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4)  *	Authors:	Peter Tiedemann (ptiedem@de.ibm.com)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5)  *
^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) #include <linux/stddef.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9) #include <linux/string.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include <linux/kernel.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include <linux/errno.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include <linux/ctype.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <linux/sysctl.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include <linux/init.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include <linux/fs.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #include <linux/debugfs.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #include "ctcm_dbug.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21)  * Debug Facility Stuff
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) struct ctcm_dbf_info ctcm_dbf[CTCM_DBF_INFOS] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) 	[CTCM_DBF_SETUP]     = {"ctc_setup", 8, 1, 64, CTC_DBF_INFO, NULL},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) 	[CTCM_DBF_ERROR]     = {"ctc_error", 8, 1, 64, CTC_DBF_ERROR, NULL},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) 	[CTCM_DBF_TRACE]     = {"ctc_trace", 8, 1, 64, CTC_DBF_ERROR, NULL},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) 	[CTCM_DBF_MPC_SETUP] = {"mpc_setup", 8, 1, 80, CTC_DBF_INFO, NULL},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) 	[CTCM_DBF_MPC_ERROR] = {"mpc_error", 8, 1, 80, CTC_DBF_ERROR, NULL},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) 	[CTCM_DBF_MPC_TRACE] = {"mpc_trace", 8, 1, 80, CTC_DBF_ERROR, NULL},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) void ctcm_unregister_dbf_views(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) 	int x;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) 	for (x = 0; x < CTCM_DBF_INFOS; x++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) 		debug_unregister(ctcm_dbf[x].id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) 		ctcm_dbf[x].id = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) int ctcm_register_dbf_views(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) 	int x;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) 	for (x = 0; x < CTCM_DBF_INFOS; x++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) 		/* register the areas */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) 		ctcm_dbf[x].id = debug_register(ctcm_dbf[x].name,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) 						ctcm_dbf[x].pages,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) 						ctcm_dbf[x].areas,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) 						ctcm_dbf[x].len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) 		if (ctcm_dbf[x].id == NULL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) 			ctcm_unregister_dbf_views();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) 			return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) 		/* register a view */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) 		debug_register_view(ctcm_dbf[x].id, &debug_hex_ascii_view);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) 		/* set a passing level */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) 		debug_set_level(ctcm_dbf[x].id, ctcm_dbf[x].level);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) void ctcm_dbf_longtext(enum ctcm_dbf_names dbf_nix, int level, char *fmt, ...)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) 	char dbf_txt_buf[64];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) 	va_list args;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) 	if (!debug_level_enabled(ctcm_dbf[dbf_nix].id, level))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) 		return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) 	va_start(args, fmt);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) 	vsnprintf(dbf_txt_buf, sizeof(dbf_txt_buf), fmt, args);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) 	va_end(args);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) 	debug_text_event(ctcm_dbf[dbf_nix].id, level, dbf_txt_buf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78)