1 files changed, 80 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/common/linux/debug_allocator.c b/drivers/gpu/nvgpu/common/linux/debug_allocator.c
new file mode 100644
index 00000000..3d4a2bb2
--- /dev/null
+++ b/drivers/gpu/nvgpu/common/linux/debug_allocator.c
@@ -0,0 +1,80 @@
+/*
+ * 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 "gk20a/platform_gk20a.h"
+
+#include <linux/debugfs.h>
+#include <linux/seq_file.h>
+
+#include <nvgpu/allocator.h>
+
+u32 nvgpu_alloc_tracing_on;
+
+void nvgpu_alloc_print_stats(struct nvgpu_allocator *__a,
+                             struct seq_file *s, int lock)
+{
+        __a->ops->print_stats(__a, s, lock);
+}
+
+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)
+{
+        if (!g->debugfs_allocators)
+                return;
+
+        a->debugfs_entry = debugfs_create_file(a->name, S_IRUGO,
+                                               g->debugfs_allocators,
+                                               a, &__alloc_fops);
+}
+
+void nvgpu_fini_alloc_debug(struct nvgpu_allocator *a)
+{
+        if (!IS_ERR_OR_NULL(a->debugfs_entry))
+                debugfs_remove(a->debugfs_entry);
+}
+
+void nvgpu_alloc_debugfs_init(struct gk20a *g)
+{
+        struct gk20a_platform *platform = dev_get_drvdata(g->dev);
+
+        g->debugfs_allocators = debugfs_create_dir("allocators", platform->debugfs);
+        if (IS_ERR_OR_NULL(g->debugfs_allocators)) {
+                g->debugfs_allocators = NULL;
+                return;
+        }
+
+        debugfs_create_u32("tracing", 0664, g->debugfs_allocators,
+                           &nvgpu_alloc_tracing_on);
+}