diff options
| -rw-r--r-- | drivers/misc/habanalabs/common/device.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/drivers/misc/habanalabs/common/device.c b/drivers/misc/habanalabs/common/device.c index 0e88396744a1..b71303ba11d0 100644 --- a/drivers/misc/habanalabs/common/device.c +++ b/drivers/misc/habanalabs/common/device.c @@ -987,11 +987,16 @@ static void device_late_fini(struct hl_device *hdev) int hl_device_utilization(struct hl_device *hdev, u32 *utilization) { - u64 max_power, curr_power, dc_power, dividend; + u64 max_power, curr_power, dc_power, dividend, divisor; int rc; max_power = hdev->max_power; dc_power = hdev->asic_prop.dc_power_default; + divisor = max_power - dc_power; + if (!divisor) { + dev_warn(hdev->dev, "device utilization is not supported\n"); + return -EOPNOTSUPP; + } rc = hl_fw_cpucp_power_get(hdev, &curr_power); if (rc) @@ -1000,7 +1005,7 @@ int hl_device_utilization(struct hl_device *hdev, u32 *utilization) curr_power = clamp(curr_power, dc_power, max_power); dividend = (curr_power - dc_power) * 100; - *utilization = (u32) div_u64(dividend, (max_power - dc_power)); + *utilization = (u32) div_u64(dividend, divisor); return 0; } |