Expose NPU memory utilization info in sysfs in bytes
to show total memory used by NPU (FW + runtime).
Signed-off-by: Maciej Falkowski <maciej.falkowski@xxxxxxxxxxxxxxx>
---
drivers/accel/ivpu/ivpu_sysfs.c | 30 +++++++++++++++++++++++++++++-
1 file changed, 29 insertions(+), 1 deletion(-)
diff --git a/drivers/accel/ivpu/ivpu_sysfs.c b/drivers/accel/ivpu/ivpu_sysfs.c
index 8a616791c32f..97102feaf8dd 100644
--- a/drivers/accel/ivpu/ivpu_sysfs.c
+++ b/drivers/accel/ivpu/ivpu_sysfs.c
@@ -7,11 +7,14 @@
#include <linux/err.h>
#include "ivpu_drv.h"
+#include "ivpu_gem.h"
#include "ivpu_fw.h"
#include "ivpu_hw.h"
#include "ivpu_sysfs.h"
-/*
+/**
+ * DOC: npu_busy_time_us
+ *
* npu_busy_time_us is the time that the device spent executing jobs.
* The time is counted when and only when there are jobs submitted to firmware.
*
@@ -42,6 +45,30 @@ npu_busy_time_us_show(struct device *dev, struct device_attribute *attr, char *b
static DEVICE_ATTR_RO(npu_busy_time_us);
+/**
+ * DOC: npu_memory_utilization
+ *
+ * The npu_memory_utilization is used to report in bytes a current NPU memory utilization.
+ *
+ */
+static ssize_t
+npu_memory_utilization_show(struct device *dev, struct device_attribute *attr, char *buf)
+{
+ struct drm_device *drm = dev_get_drvdata(dev);
+ struct ivpu_device *vdev = to_ivpu_device(drm);
+ struct ivpu_bo *bo;
+ u64 total_npu_memory = 0;
+
+ mutex_lock(&vdev->bo_list_lock);
+ list_for_each_entry(bo, &vdev->bo_list, bo_list_node)
+ total_npu_memory += bo->base.base.size;
+ mutex_unlock(&vdev->bo_list_lock);
+
+ return sysfs_emit(buf, "%lld\n", total_npu_memory);
+}
+
+static DEVICE_ATTR_RO(npu_memory_utilization);
+
/**
* DOC: sched_mode
*
@@ -65,6 +92,7 @@ static DEVICE_ATTR_RO(sched_mode);
static struct attribute *ivpu_dev_attrs[] = {
&dev_attr_npu_busy_time_us.attr,
+ &dev_attr_npu_memory_utilization.attr,
&dev_attr_sched_mode.attr,
NULL,
};
--
2.43.0
