drivers/gpu/drm/i915/gt/uc/intel_uc_debugfs.c

   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_gsc_uc_debugfs.h"
  14 #include "intel_huc_debugfs.h"
  15 #include "intel_uc.h"
  16 #include "intel_uc_debugfs.h"
  17
  18 static int uc_usage_show(struct seq_file *m, void *data)
  19 {
  20         struct intel_uc *uc = m->private;
  21         struct drm_printer p = drm_seq_file_printer(m);
  22
  23         drm_printf(&p, "[guc] supported:%s wanted:%s used:%s\n",
  24                    str_yes_no(intel_uc_supports_guc(uc)),
  25                    str_yes_no(intel_uc_wants_guc(uc)),
  26                    str_yes_no(intel_uc_uses_guc(uc)));
  27         drm_printf(&p, "[huc] supported:%s wanted:%s used:%s\n",
  28                    str_yes_no(intel_uc_supports_huc(uc)),
  29                    str_yes_no(intel_uc_wants_huc(uc)),
  30                    str_yes_no(intel_uc_uses_huc(uc)));
  31         drm_printf(&p, "[submission] supported:%s wanted:%s used:%s\n",
  32                    str_yes_no(intel_uc_supports_guc_submission(uc)),
  33                    str_yes_no(intel_uc_wants_guc_submission(uc)),
  34                    str_yes_no(intel_uc_uses_guc_submission(uc)));
  35
  36         return 0;
  37 }
  38 DEFINE_INTEL_GT_DEBUGFS_ATTRIBUTE(uc_usage);
  39
  40 void intel_uc_debugfs_register(struct intel_uc *uc, struct dentry *gt_root)
  41 {
  42         static const struct intel_gt_debugfs_file files[] = {
  43                 { "usage", &uc_usage_fops, NULL },
  44         };
  45         struct dentry *root;
  46
  47         if (!gt_root)
  48                 return;
  49
  50         /* GuC and HuC go always in pair, no need to check both */
  51         if (!intel_uc_supports_guc(uc))
  52                 return;
  53
  54         root = debugfs_create_dir("uc", gt_root);
  55         if (IS_ERR(root))
  56                 return;
  57
  58         uc->guc.dbgfs_node = root;
  59
  60         intel_gt_debugfs_register_files(root, files, ARRAY_SIZE(files), uc);
  61
  62         intel_gsc_uc_debugfs_register(&uc->gsc, root);
  63         intel_guc_debugfs_register(&uc->guc, root);
  64         intel_huc_debugfs_register(&uc->huc, root);
  65 }