disable FB

hc

2024-01-04 1543e317f1da31b75942316931e8f491a8920811

 kernel/drivers/gpu/drm/amd/amdkfd/kfd_debugfs.c
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@@ -33,6 +33,11 @@
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 	return single_open(file, show, NULL);
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 }
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+static int kfd_debugfs_hang_hws_read(struct seq_file *m, void *data)
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+{
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+	seq_printf(m, "echo gpu_id > hang_hws\n");
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+	return 0;
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+}
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 static ssize_t kfd_debugfs_hang_hws_write(struct file *file,
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 	const char __user *user_buf, size_t size, loff_t *ppos)
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@@ -85,36 +90,16 @@
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 void kfd_debugfs_init(void)
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 {
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-	struct dentry *ent;
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-
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 	debugfs_root = debugfs_create_dir("kfd", NULL);
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-	if (!debugfs_root || debugfs_root == ERR_PTR(-ENODEV)) {
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-		pr_warn("Failed to create kfd debugfs dir\n");
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-		return;
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-	}
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-	ent = debugfs_create_file("mqds", S_IFREG | 0444, debugfs_root,
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-				  kfd_debugfs_mqds_by_process,
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-				  &kfd_debugfs_fops);
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-	if (!ent)
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-		pr_warn("Failed to create mqds in kfd debugfs\n");
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-
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-	ent = debugfs_create_file("hqds", S_IFREG | 0444, debugfs_root,
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-				  kfd_debugfs_hqds_by_device,
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-				  &kfd_debugfs_fops);
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-	if (!ent)
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-		pr_warn("Failed to create hqds in kfd debugfs\n");
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-
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-	ent = debugfs_create_file("rls", S_IFREG | 0444, debugfs_root,
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-				  kfd_debugfs_rls_by_device,
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-				  &kfd_debugfs_fops);
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-
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-	ent = debugfs_create_file("hang_hws", S_IFREG | 0644, debugfs_root,
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-				  NULL,
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-				  &kfd_debugfs_hang_hws_fops);
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-
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-	if (!ent)
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-		pr_warn("Failed to create rls in kfd debugfs\n");
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+	debugfs_create_file("mqds", S_IFREG | 0444, debugfs_root,
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+			    kfd_debugfs_mqds_by_process, &kfd_debugfs_fops);
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+	debugfs_create_file("hqds", S_IFREG | 0444, debugfs_root,
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+			    kfd_debugfs_hqds_by_device, &kfd_debugfs_fops);
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+	debugfs_create_file("rls", S_IFREG | 0444, debugfs_root,
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+			    kfd_debugfs_rls_by_device, &kfd_debugfs_fops);
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+	debugfs_create_file("hang_hws", S_IFREG | 0200, debugfs_root,
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+			    kfd_debugfs_hang_hws_read, &kfd_debugfs_hang_hws_fops);
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 }
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 void kfd_debugfs_fini(void)