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