1 files changed, 48 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/vgpu/sysfs_vgpu.c b/drivers/gpu/nvgpu/vgpu/sysfs_vgpu.c
new file mode 100644
index 00000000..d43a34aa
--- /dev/null
+++ b/drivers/gpu/nvgpu/vgpu/sysfs_vgpu.c
@@ -0,0 +1,48 @@
+/*
+ * Copyright (c) 2017, NVIDIA CORPORATION.  All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope 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 <linux/device.h>
+#include <linux/kernel.h>
+#include <linux/gk20a.h>
+
+#include "vgpu/vgpu.h"
+
+static ssize_t vgpu_load_show(struct device *dev,
+                              struct device_attribute *attr,
+                              char *buf)
+{
+        struct gk20a *g = get_gk20a(dev);
+        struct tegra_vgpu_cmd_msg msg = {0};
+        struct tegra_vgpu_gpu_load_params *p = &msg.params.gpu_load;
+        int err;
+
+        msg.cmd = TEGRA_VGPU_CMD_GET_GPU_LOAD;
+        msg.handle = vgpu_get_handle(g);
+        err = vgpu_comm_sendrecv(&msg, sizeof(msg), sizeof(msg));
+        if (err)
+                return err;
+
+        return snprintf(buf, PAGE_SIZE, "%u\n", p->load);
+}
+static DEVICE_ATTR(load, S_IRUGO, vgpu_load_show, NULL);
+
+void vgpu_create_sysfs(struct device *dev)
+{
+        if (device_create_file(dev, &dev_attr_load))
+                dev_err(dev, "Failed to create vgpu sysfs attributes!\n");
+}
+
+void vgpu_remove_sysfs(struct device *dev)
+{
+        device_remove_file(dev, &dev_attr_load);
+}