diff options
| author | Ofir Bitton <obitton@habana.ai> | 2021-10-25 09:47:04 +0300 |
|---|---|---|
| committer | Oded Gabbay <ogabbay@kernel.org> | 2021-12-26 08:59:05 +0200 |
| commit | 1679c7ee580fdaa2a5df398a526b2eddc857f2a1 (patch) | |
| tree | 92b9e8986c32542f246492102457ce7a388e0084 /drivers/misc/habanalabs/common/habanalabs_ioctl.c | |
| parent | 48f31169830f589e4c7ac475ccc7414951ded3f0 (diff) | |
| download | linux-1679c7ee580fdaa2a5df398a526b2eddc857f2a1.tar.bz2 | |
habanalabs: expand clock throttling information uAPI
In addition to the clock throttling reason, user should be able
to obtain also the start time and the duration of the throttling
event.
Signed-off-by: Ofir Bitton <obitton@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Diffstat (limited to 'drivers/misc/habanalabs/common/habanalabs_ioctl.c')
| -rw-r--r-- | drivers/misc/habanalabs/common/habanalabs_ioctl.c | 27 |
1 files changed, 25 insertions, 2 deletions
diff --git a/drivers/misc/habanalabs/common/habanalabs_ioctl.c b/drivers/misc/habanalabs/common/habanalabs_ioctl.c index 86c3257d9ae1..19726c6b642a 100644 --- a/drivers/misc/habanalabs/common/habanalabs_ioctl.c +++ b/drivers/misc/habanalabs/common/habanalabs_ioctl.c @@ -313,15 +313,38 @@ static int pci_counters_info(struct hl_fpriv *hpriv, struct hl_info_args *args) static int clk_throttle_info(struct hl_fpriv *hpriv, struct hl_info_args *args) { + void __user *out = (void __user *) (uintptr_t) args->return_pointer; struct hl_device *hdev = hpriv->hdev; struct hl_info_clk_throttle clk_throttle = {0}; + ktime_t end_time, zero_time = ktime_set(0, 0); u32 max_size = args->return_size; - void __user *out = (void __user *) (uintptr_t) args->return_pointer; + int i; if ((!max_size) || (!out)) return -EINVAL; - clk_throttle.clk_throttling_reason = hdev->clk_throttling_reason; + mutex_lock(&hdev->clk_throttling.lock); + + clk_throttle.clk_throttling_reason = hdev->clk_throttling.current_reason; + + for (i = 0 ; i < HL_CLK_THROTTLE_TYPE_MAX ; i++) { + if (!(hdev->clk_throttling.aggregated_reason & BIT(i))) + continue; + + clk_throttle.clk_throttling_timestamp_us[i] = + ktime_to_us(hdev->clk_throttling.timestamp[i].start); + + if (ktime_compare(hdev->clk_throttling.timestamp[i].end, zero_time)) + end_time = ktime_get(); + else + end_time = hdev->clk_throttling.timestamp[i].end; + + clk_throttle.clk_throttling_duration_ns[i] = + ktime_to_ns(ktime_sub(end_time, + hdev->clk_throttling.timestamp[i].start)); + + } + mutex_unlock(&hdev->clk_throttling.lock); return copy_to_user(out, &clk_throttle, min((size_t) max_size, sizeof(clk_throttle))) ? -EFAULT : 0; |