1 /* 2 * Copyright (C) 2014 ARM Ltd. 3 * 4 * This program is free software; you can redistribute it and/or modify 5 * it under the terms of the GNU General Public License version 2 as 6 * published by the Free Software Foundation. 7 * 8 * This program is distributed in the hope that it will be useful, 9 * but WITHOUT ANY WARRANTY; without even the implied warranty of 10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 11 * GNU General Public License for more details. 12 * 13 * You should have received a copy of the GNU General Public License 14 * along with this program. If not, see <http://www.gnu.org/licenses/>. 15 */ 16 #ifndef __ASM_PTDUMP_H 17 #define __ASM_PTDUMP_H 18 19 #ifdef CONFIG_ARM64_PTDUMP_CORE 20 21 #include <linux/mm_types.h> 22 #include <linux/seq_file.h> 23 24 struct addr_marker { 25 unsigned long start_address; 26 char *name; 27 }; 28 29 struct ptdump_info { 30 struct mm_struct *mm; 31 const struct addr_marker *markers; 32 unsigned long base_addr; 33 }; 34 35 void ptdump_walk_pgd(struct seq_file *s, struct ptdump_info *info); 36 #ifdef CONFIG_ARM64_PTDUMP_DEBUGFS 37 int ptdump_debugfs_register(struct ptdump_info *info, const char *name); 38 #else 39 static inline int ptdump_debugfs_register(struct ptdump_info *info, 40 const char *name) 41 { 42 return 0; 43 } 44 #endif 45 void ptdump_check_wx(void); 46 #endif /* CONFIG_ARM64_PTDUMP_CORE */ 47 48 #ifdef CONFIG_DEBUG_WX 49 #define debug_checkwx() ptdump_check_wx() 50 #else 51 #define debug_checkwx() do { } while (0) 52 #endif 53 54 #endif /* __ASM_PTDUMP_H */ 55