1 // SPDX-License-Identifier: MIT 2 /* 3 * Copyright © 2020 Intel Corporation 4 */ 5 6 #include <linux/debugfs.h> 7 #include <linux/string_helpers.h> 8 9 #include <drm/drm_print.h> 10 11 #include "gt/intel_gt_debugfs.h" 12 #include "intel_guc_debugfs.h" 13 #include "intel_huc_debugfs.h" 14 #include "intel_uc.h" 15 #include "intel_uc_debugfs.h" 16 17 static int uc_usage_show(struct seq_file *m, void *data) 18 { 19 struct intel_uc *uc = m->private; 20 struct drm_printer p = drm_seq_file_printer(m); 21 22 drm_printf(&p, "[guc] supported:%s wanted:%s used:%s\n", 23 str_yes_no(intel_uc_supports_guc(uc)), 24 str_yes_no(intel_uc_wants_guc(uc)), 25 str_yes_no(intel_uc_uses_guc(uc))); 26 drm_printf(&p, "[huc] supported:%s wanted:%s used:%s\n", 27 str_yes_no(intel_uc_supports_huc(uc)), 28 str_yes_no(intel_uc_wants_huc(uc)), 29 str_yes_no(intel_uc_uses_huc(uc))); 30 drm_printf(&p, "[submission] supported:%s wanted:%s used:%s\n", 31 str_yes_no(intel_uc_supports_guc_submission(uc)), 32 str_yes_no(intel_uc_wants_guc_submission(uc)), 33 str_yes_no(intel_uc_uses_guc_submission(uc))); 34 35 return 0; 36 } 37 DEFINE_INTEL_GT_DEBUGFS_ATTRIBUTE(uc_usage); 38 39 void intel_uc_debugfs_register(struct intel_uc *uc, struct dentry *gt_root) 40 { 41 static const struct intel_gt_debugfs_file files[] = { 42 { "usage", &uc_usage_fops, NULL }, 43 }; 44 struct dentry *root; 45 46 if (!gt_root) 47 return; 48 49 /* GuC and HuC go always in pair, no need to check both */ 50 if (!intel_uc_supports_guc(uc)) 51 return; 52 53 root = debugfs_create_dir("uc", gt_root); 54 if (IS_ERR(root)) 55 return; 56 57 uc->guc.dbgfs_node = root; 58 59 intel_gt_debugfs_register_files(root, files, ARRAY_SIZE(files), uc); 60 61 intel_guc_debugfs_register(&uc->guc, root); 62 intel_huc_debugfs_register(&uc->huc, root); 63 } 64