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| author | Moti Haimovski <mhaimovski@habana.ai> | 2019-11-03 16:26:44 +0200 |
|---|---|---|
| committer | Oded Gabbay <oded.gabbay@gmail.com> | 2019-11-21 11:35:47 +0200 |
| commit | 52c01b0137193ab0c9282ec8d09c6338446e6e9f (patch) | |
| tree | eba1f501dcda6d92a85e2fe1f0a0d089de7691d0 /drivers/misc/habanalabs | |
| parent | e16ee4103770acf365372886eac7c750017c918e (diff) | |
| download | linux-52c01b0137193ab0c9282ec8d09c6338446e6e9f.tar.gz linux-52c01b0137193ab0c9282ec8d09c6338446e6e9f.tar.bz2 linux-52c01b0137193ab0c9282ec8d09c6338446e6e9f.zip | |
habanalabs: expose reset counters via existing INFO IOCTL
Expose both soft and hard reset counts via INFO IOCTL.
This will allow system management applications to easily check
if the device has undergone reset.
Signed-off-by: Moti Haimovski <mhaimovski@habana.ai>
Reviewed-by: Oded Gabbay <oded.gabbay@gmail.com>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
Diffstat (limited to 'drivers/misc/habanalabs')
| -rw-r--r-- | drivers/misc/habanalabs/habanalabs_ioctl.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/drivers/misc/habanalabs/habanalabs_ioctl.c b/drivers/misc/habanalabs/habanalabs_ioctl.c index 5d9c269d99db..6474b868ef27 100644 --- a/drivers/misc/habanalabs/habanalabs_ioctl.c +++ b/drivers/misc/habanalabs/habanalabs_ioctl.c @@ -242,6 +242,22 @@ static int get_clk_rate(struct hl_device *hdev, struct hl_info_args *args) min((size_t) max_size, sizeof(clk_rate))) ? -EFAULT : 0; } +static int get_reset_count(struct hl_device *hdev, struct hl_info_args *args) +{ + struct hl_info_reset_count reset_count = {0}; + u32 max_size = args->return_size; + void __user *out = (void __user *) (uintptr_t) args->return_pointer; + + if ((!max_size) || (!out)) + return -EINVAL; + + reset_count.hard_reset_cnt = hdev->hard_reset_cnt; + reset_count.soft_reset_cnt = hdev->soft_reset_cnt; + + return copy_to_user(out, &reset_count, + min((size_t) max_size, sizeof(reset_count))) ? -EFAULT : 0; +} + static int _hl_info_ioctl(struct hl_fpriv *hpriv, void *data, struct device *dev) { @@ -260,6 +276,9 @@ static int _hl_info_ioctl(struct hl_fpriv *hpriv, void *data, case HL_INFO_DEVICE_STATUS: return device_status_info(hdev, args); + case HL_INFO_RESET_COUNT: + return get_reset_count(hdev, args); + default: break; } |