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author | Oded Gabbay <oded.gabbay@gmail.com> | 2019-10-10 15:48:59 +0300 |
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committer | Oded Gabbay <oded.gabbay@gmail.com> | 2019-11-21 11:35:45 +0200 |
commit | 62c1e124a9e03ccb8bb39efe1d092c2376967528 (patch) | |
tree | c6fc20d051587eb6f10a3698467bcb58548d39ac /include/uapi/misc | |
parent | 8fdacf2a530f36f6f0621a95ef0e37d8db2d2f89 (diff) | |
download | linux-62c1e124a9e03ccb8bb39efe1d092c2376967528.tar.gz linux-62c1e124a9e03ccb8bb39efe1d092c2376967528.tar.bz2 linux-62c1e124a9e03ccb8bb39efe1d092c2376967528.zip |
habanalabs: add opcode to INFO IOCTL to return clock rate
Add a new opcode to the INFO IOCTL to allow the user application to
retrieve the ASIC's current and maximum clock rate. The rate is
returned in MHz.
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
Reviewed-by: Tomer Tayar <ttayar@habana.ai>
Diffstat (limited to 'include/uapi/misc')
-rw-r--r-- | include/uapi/misc/habanalabs.h | 19 |
1 files changed, 14 insertions, 5 deletions
diff --git a/include/uapi/misc/habanalabs.h b/include/uapi/misc/habanalabs.h index 53e4ff73578e..783793c8be1c 100644 --- a/include/uapi/misc/habanalabs.h +++ b/include/uapi/misc/habanalabs.h @@ -88,13 +88,16 @@ enum hl_device_status { * internal engine. * HL_INFO_DEVICE_STATUS - Retrieve the device's status. This opcode doesn't * require an open context. - * HL_INFO_DEVICE_UTILIZATION - Retrieve the total utilization of the device - * over the last period specified by the user. - * The period can be between 100ms to 1s, in - * resolution of 100ms. The return value is a - * percentage of the utilization rate. + * HL_INFO_DEVICE_UTILIZATION - Retrieve the total utilization of the device + * over the last period specified by the user. + * The period can be between 100ms to 1s, in + * resolution of 100ms. The return value is a + * percentage of the utilization rate. * HL_INFO_HW_EVENTS_AGGREGATE - Receive an array describing how many times each * event occurred since the driver was loaded. + * HL_INFO_CLK_RATE - Retrieve the current and maximum clock rate + * of the device in MHz. The maximum clock rate is + * configurable via sysfs parameter */ #define HL_INFO_HW_IP_INFO 0 #define HL_INFO_HW_EVENTS 1 @@ -103,6 +106,7 @@ enum hl_device_status { #define HL_INFO_DEVICE_STATUS 4 #define HL_INFO_DEVICE_UTILIZATION 6 #define HL_INFO_HW_EVENTS_AGGREGATE 7 +#define HL_INFO_CLK_RATE 8 #define HL_INFO_VERSION_MAX_LEN 128 @@ -149,6 +153,11 @@ struct hl_info_device_utilization { __u32 pad; }; +struct hl_info_clk_rate { + __u32 cur_clk_rate_mhz; + __u32 max_clk_rate_mhz; +}; + struct hl_info_args { /* Location of relevant struct in userspace */ __u64 return_pointer; |