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| author |  Tomer Tayar <ttayar@habana.ai>
| 2020-03-31 22:46:36 +0300 |
|---|---|---|
| committer |  Oded Gabbay <oded.gabbay@gmail.com>
| 2020-05-19 14:48:41 +0300 |
| commit | 25e7aeba601c1776cd21d610e3afc8768d0c7f2e (patch) | |
| tree | 1a6c207adeafa3eebcca5627f1ef58e9705bbd8c /include/uapi/misc | |
| parent | habanalabs: hl_pci_set_dma_mask() can be static (diff) | |
| download | linux-25e7aeba601c1776cd21d610e3afc8768d0c7f2e.tar.gz linux-25e7aeba601c1776cd21d610e3afc8768d0c7f2e.tar.bz2 linux-25e7aeba601c1776cd21d610e3afc8768d0c7f2e.zip | |
habanalabs: Add INFO IOCTL opcode for time sync information
Add a new opcode to the INFO IOCTL that retrieves the device time
alongside the host time, to allow a user application that want to measure
device time together with host time (such as a profiler) to synchronize
these times.
Signed-off-by: Tomer Tayar <ttayar@habana.ai>
Reviewed-by: Oded Gabbay <oded.gabbay@gmail.com>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
Diffstat (limited to 'include/uapi/misc')
| -rw-r--r-- | include/uapi/misc/habanalabs.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/include/uapi/misc/habanalabs.h b/include/uapi/misc/habanalabs.h index 4faa2c9767e5..4d593050c42b 100644 --- a/include/uapi/misc/habanalabs.h +++ b/include/uapi/misc/habanalabs.h @@ -101,6 +101,8 @@ enum hl_device_status { * HL_INFO_RESET_COUNT - Retrieve the counts of the soft and hard reset * operations performed on the device since the last * time the driver was loaded. + * HL_INFO_TIME_SYNC - Retrieve the device's time alongside the host's time + * for synchronization. */ #define HL_INFO_HW_IP_INFO 0 #define HL_INFO_HW_EVENTS 1 @@ -111,6 +113,7 @@ enum hl_device_status { #define HL_INFO_HW_EVENTS_AGGREGATE 7 #define HL_INFO_CLK_RATE 8 #define HL_INFO_RESET_COUNT 9 +#define HL_INFO_TIME_SYNC 10 #define HL_INFO_VERSION_MAX_LEN 128 #define HL_INFO_CARD_NAME_MAX_LEN 16 @@ -169,6 +172,11 @@ struct hl_info_reset_count { __u32 soft_reset_cnt; }; +struct hl_info_time_sync { + __u64 device_time; + __u64 host_time; +}; + struct hl_info_args { /* Location of relevant struct in userspace */ __u64 return_pointer; |