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habanalabs: add comments on INFO IOCTL 

This patch adds some in-code documentation on the different opcodes of the
INFO IOCTL.

Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
Reviewed-by: Omer Shpigelman <oshpigelman@habana.ai>
This commit is contained in:
Oded Gabbay 2019-07-16 08:55:04 +03:00
parent 68b8819daf
commit f388ec7c16
1 changed files with 13 additions and 1 deletions
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14
include/uapi/misc/habanalabs.h
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@ -75,7 +75,19 @@ enum hl_device_status {
HL_DEVICE_STATUS_MALFUNCTION
};
/* Opcode for management ioctl */
/* Opcode for management ioctl
*
* HW_IP_INFO - Receive information about different IP blocks in the
* device.
* HL_INFO_HW_EVENTS - Receive an array describing how many times each event
* occurred since the last hard reset.
* HL_INFO_DRAM_USAGE - Retrieve the dram usage inside the device and of the
* specific context. This is relevant only for GOYA device.
* HL_INFO_HW_IDLE - Retrieve information about the idle status of each
* internal engine.
* HL_INFO_DEVICE_STATUS - Retrieve the device's status. This opcode doesn't
* require an open context.
*/
#define HL_INFO_HW_IP_INFO 0
#define HL_INFO_HW_EVENTS 1
#define HL_INFO_DRAM_USAGE 2