1 files changed, 26 insertions, 2 deletions

diff --git a/drivers/gpu/nvgpu/gk20a/gk20a_sysfs.c b/drivers/gpu/nvgpu/gk20a/gk20a_sysfs.c
index 335c3f3b..f7e0a2b6 100644
--- a/drivers/gpu/nvgpu/gk20a/gk20a_sysfs.c
+++ b/drivers/gpu/nvgpu/gk20a/gk20a_sysfs.c
@@ -248,8 +248,8 @@ static ssize_t counters_show(struct device *dev,
 
         return res;
 }
-
 static DEVICE_ATTR(counters, S_IRUGO, counters_show, NULL);
+
 static ssize_t counters_show_reset(struct device *dev,
                                    struct device_attribute *attr, char *buf)
 {
@@ -261,9 +261,31 @@ static ssize_t counters_show_reset(struct device *dev,
 
         return res;
 }
-
 static DEVICE_ATTR(counters_reset, S_IRUGO, counters_show_reset, NULL);
 
+static ssize_t gk20a_load_show(struct device *dev,
+                                     struct device_attribute *attr,
+                                     char *buf)
+{
+        struct platform_device *pdev = to_platform_device(dev);
+        struct gk20a *g = get_gk20a(pdev);
+        u32 busy_time;
+        ssize_t res;
+
+        if (!g->power_on) {
+                busy_time = 0;
+        } else {
+                gk20a_busy(g->dev);
+                gk20a_pmu_load_norm(g, &busy_time);
+                gk20a_idle(g->dev);
+        }
+
+        res = snprintf(buf, PAGE_SIZE, "%u\n", busy_time);
+
+        return res;
+}
+static DEVICE_ATTR(load, S_IRUGO, gk20a_load_show, NULL);
+
 static ssize_t elpg_enable_store(struct device *device,
         struct device_attribute *attr, const char *buf, size_t count)
 {
@@ -318,6 +340,7 @@ void gk20a_remove_sysfs(struct device *dev)
         device_remove_file(dev, &dev_attr_elpg_enable);
         device_remove_file(dev, &dev_attr_counters);
         device_remove_file(dev, &dev_attr_counters_reset);
+        device_remove_file(dev, &dev_attr_load);
         device_remove_file(dev, &dev_attr_railgate_delay);
         device_remove_file(dev, &dev_attr_clockgate_delay);
 }
@@ -333,6 +356,7 @@ void gk20a_create_sysfs(struct platform_device *dev)
         error |= device_create_file(&dev->dev, &dev_attr_elpg_enable);
         error |= device_create_file(&dev->dev, &dev_attr_counters);
         error |= device_create_file(&dev->dev, &dev_attr_counters_reset);
+        error |= device_create_file(&dev->dev, &dev_attr_load);
         error |= device_create_file(&dev->dev, &dev_attr_railgate_delay);
         error |= device_create_file(&dev->dev, &dev_attr_clockgate_delay);