Open source GPL/LGPL release

drivers/gpu/nvgpu/os/linux/debug_allocator.c

@@ -0,0 +1,69 @@
+/*
+ * Copyright (C) 2017 NVIDIA Corporation.  All rights reserved.
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#include "debug_allocator.h"
+#include "os_linux.h"
+
+#include <linux/debugfs.h>
+#include <linux/seq_file.h>
+
+#include <nvgpu/allocator.h>
+
+static int __alloc_show(struct seq_file *s, void *unused)
+{
+	struct nvgpu_allocator *a = s->private;
+
+	nvgpu_alloc_print_stats(a, s, 1);
+
+	return 0;
+}
+
+static int __alloc_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, __alloc_show, inode->i_private);
+}
+
+static const struct file_operations __alloc_fops = {
+	.open = __alloc_open,
+	.read = seq_read,
+	.llseek = seq_lseek,
+	.release = single_release,
+};
+
+void nvgpu_init_alloc_debug(struct gk20a *g, struct nvgpu_allocator *a)
+{
+	struct nvgpu_os_linux *l = nvgpu_os_linux_from_gk20a(g);
+
+	if (!l->debugfs_allocators)
+		return;
+
+	a->debugfs_entry = debugfs_create_file(a->name, S_IRUGO,
+					       l->debugfs_allocators,
+					       a, &__alloc_fops);
+}
+
+void nvgpu_fini_alloc_debug(struct nvgpu_allocator *a)
+{
+}
+
+void nvgpu_alloc_debugfs_init(struct gk20a *g)
+{
+	struct nvgpu_os_linux *l = nvgpu_os_linux_from_gk20a(g);
+
+	l->debugfs_allocators = debugfs_create_dir("allocators", l->debugfs);
+	if (IS_ERR_OR_NULL(l->debugfs_allocators)) {
+		l->debugfs_allocators = NULL;
+		return;
+	}
+}