1 // SPDX-License-Identifier: GPL-2.0 2 /* 3 * Copyright IBM Corp. 2001, 2007 4 * Authors: Peter Tiedemann (ptiedem@de.ibm.com) 5 * 6 */ 7 8 #include <linux/stddef.h> 9 #include <linux/string.h> 10 #include <linux/kernel.h> 11 #include <linux/errno.h> 12 #include <linux/ctype.h> 13 #include <linux/sysctl.h> 14 #include <linux/module.h> 15 #include <linux/init.h> 16 #include <linux/fs.h> 17 #include <linux/debugfs.h> 18 #include "ctcm_dbug.h" 19 20 /* 21 * Debug Facility Stuff 22 */ 23 24 struct ctcm_dbf_info ctcm_dbf[CTCM_DBF_INFOS] = { 25 [CTCM_DBF_SETUP] = {"ctc_setup", 8, 1, 64, CTC_DBF_INFO, NULL}, 26 [CTCM_DBF_ERROR] = {"ctc_error", 8, 1, 64, CTC_DBF_ERROR, NULL}, 27 [CTCM_DBF_TRACE] = {"ctc_trace", 8, 1, 64, CTC_DBF_ERROR, NULL}, 28 [CTCM_DBF_MPC_SETUP] = {"mpc_setup", 8, 1, 80, CTC_DBF_INFO, NULL}, 29 [CTCM_DBF_MPC_ERROR] = {"mpc_error", 8, 1, 80, CTC_DBF_ERROR, NULL}, 30 [CTCM_DBF_MPC_TRACE] = {"mpc_trace", 8, 1, 80, CTC_DBF_ERROR, NULL}, 31 }; 32 33 void ctcm_unregister_dbf_views(void) 34 { 35 int x; 36 for (x = 0; x < CTCM_DBF_INFOS; x++) { 37 debug_unregister(ctcm_dbf[x].id); 38 ctcm_dbf[x].id = NULL; 39 } 40 } 41 42 int ctcm_register_dbf_views(void) 43 { 44 int x; 45 for (x = 0; x < CTCM_DBF_INFOS; x++) { 46 /* register the areas */ 47 ctcm_dbf[x].id = debug_register(ctcm_dbf[x].name, 48 ctcm_dbf[x].pages, 49 ctcm_dbf[x].areas, 50 ctcm_dbf[x].len); 51 if (ctcm_dbf[x].id == NULL) { 52 ctcm_unregister_dbf_views(); 53 return -ENOMEM; 54 } 55 56 /* register a view */ 57 debug_register_view(ctcm_dbf[x].id, &debug_hex_ascii_view); 58 /* set a passing level */ 59 debug_set_level(ctcm_dbf[x].id, ctcm_dbf[x].level); 60 } 61 62 return 0; 63 } 64 65 void ctcm_dbf_longtext(enum ctcm_dbf_names dbf_nix, int level, char *fmt, ...) 66 { 67 char dbf_txt_buf[64]; 68 va_list args; 69 70 if (!debug_level_enabled(ctcm_dbf[dbf_nix].id, level)) 71 return; 72 va_start(args, fmt); 73 vsnprintf(dbf_txt_buf, sizeof(dbf_txt_buf), fmt, args); 74 va_end(args); 75 76 debug_text_event(ctcm_dbf[dbf_nix].id, level, dbf_txt_buf); 77 } 78 79