1 /* SPDX-License-Identifier: MIT */ 2 /* 3 * Copyright © 2019 Intel Corporation 4 */ 5 6 #ifndef INTEL_GT_DEBUGFS_H 7 #define INTEL_GT_DEBUGFS_H 8 9 #include <linux/file.h> 10 11 struct intel_gt; 12 13 #define __GT_DEBUGFS_ATTRIBUTE_FOPS(__name) \ 14 static const struct file_operations __name ## _fops = { \ 15 .owner = THIS_MODULE, \ 16 .open = __name ## _open, \ 17 .read = seq_read, \ 18 .llseek = seq_lseek, \ 19 .release = single_release, \ 20 } 21 22 #define DEFINE_INTEL_GT_DEBUGFS_ATTRIBUTE(__name) \ 23 static int __name ## _open(struct inode *inode, struct file *file) \ 24 { \ 25 return single_open(file, __name ## _show, inode->i_private); \ 26 } \ 27 __GT_DEBUGFS_ATTRIBUTE_FOPS(__name) 28 29 #define DEFINE_INTEL_GT_DEBUGFS_ATTRIBUTE_WITH_SIZE(__name, __size_vf) \ 30 static int __name ## _open(struct inode *inode, struct file *file) \ 31 { \ 32 return single_open_size(file, __name ## _show, inode->i_private, \ 33 __size_vf(inode->i_private)); \ 34 } \ 35 __GT_DEBUGFS_ATTRIBUTE_FOPS(__name) 36 37 void intel_gt_debugfs_register(struct intel_gt *gt); 38 39 struct intel_gt_debugfs_file { 40 const char *name; 41 const struct file_operations *fops; 42 bool (*eval)(void *data); 43 }; 44 45 void intel_gt_debugfs_register_files(struct dentry *root, 46 const struct intel_gt_debugfs_file *files, 47 unsigned long count, void *data); 48 49 /* functions that need to be accessed by the upper level non-gt interfaces */ 50 int intel_gt_debugfs_reset_show(struct intel_gt *gt, u64 *val); 51 void intel_gt_debugfs_reset_store(struct intel_gt *gt, u64 val); 52 53 #endif /* INTEL_GT_DEBUGFS_H */ 54