1 /* 2 * drivers/s390/net/ctcm_dbug.c 3 * 4 * Copyright IBM Corp. 2001, 2007 5 * Authors: Peter Tiedemann (ptiedem@de.ibm.com) 6 * 7 */ 8 9 #include <linux/stddef.h> 10 #include <linux/kernel.h> 11 #include <linux/errno.h> 12 #include <linux/slab.h> 13 #include <linux/ctype.h> 14 #include <linux/sysctl.h> 15 #include <linux/module.h> 16 #include <linux/init.h> 17 #include <linux/fs.h> 18 #include <linux/debugfs.h> 19 #include "ctcm_dbug.h" 20 21 /* 22 * Debug Facility Stuff 23 */ 24 25 DEFINE_PER_CPU(char[256], ctcm_dbf_txt_buf); 26 27 struct ctcm_dbf_info ctcm_dbf[CTCM_DBF_INFOS] = { 28 [CTCM_DBF_SETUP] = {"ctc_setup", 8, 1, 64, 5, NULL}, 29 [CTCM_DBF_ERROR] = {"ctc_error", 8, 1, 64, 3, NULL}, 30 [CTCM_DBF_TRACE] = {"ctc_trace", 8, 1, 64, 3, NULL}, 31 [CTCM_DBF_MPC_SETUP] = {"mpc_setup", 8, 1, 64, 5, NULL}, 32 [CTCM_DBF_MPC_ERROR] = {"mpc_error", 8, 1, 64, 3, NULL}, 33 [CTCM_DBF_MPC_TRACE] = {"mpc_trace", 8, 1, 64, 3, NULL}, 34 }; 35 36 void ctcm_unregister_dbf_views(void) 37 { 38 int x; 39 for (x = 0; x < CTCM_DBF_INFOS; x++) { 40 debug_unregister(ctcm_dbf[x].id); 41 ctcm_dbf[x].id = NULL; 42 } 43 } 44 45 int ctcm_register_dbf_views(void) 46 { 47 int x; 48 for (x = 0; x < CTCM_DBF_INFOS; x++) { 49 /* register the areas */ 50 ctcm_dbf[x].id = debug_register(ctcm_dbf[x].name, 51 ctcm_dbf[x].pages, 52 ctcm_dbf[x].areas, 53 ctcm_dbf[x].len); 54 if (ctcm_dbf[x].id == NULL) { 55 ctcm_unregister_dbf_views(); 56 return -ENOMEM; 57 } 58 59 /* register a view */ 60 debug_register_view(ctcm_dbf[x].id, &debug_hex_ascii_view); 61 /* set a passing level */ 62 debug_set_level(ctcm_dbf[x].id, ctcm_dbf[x].level); 63 } 64 65 return 0; 66 } 67 68