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accel/habanalabs: add description to several info ioctls 

Several info ioctls may return success although no data retrieved.

Signed-off-by: Dani Liberman <dliberman@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
This commit is contained in:
Dani Liberman 2023-04-20 19:33:34 +03:00 committed by Oded Gabbay
parent 569210233a
commit 92a3a9b1a3
1 changed files with 10 additions and 0 deletions
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10
include/uapi/drm/habanalabs_accel.h
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@ -787,18 +787,28 @@ enum hl_server_type {
* The address which accessing it caused the razwi.
* Razwi initiator.
* Razwi cause, was it a page fault or MMU access error.
* May return 0 even though no new data is available, in that case
* timestamp will be 0.
* HL_INFO_DEV_MEM_ALLOC_PAGE_SIZES - Retrieve valid page sizes for device memory allocation
* HL_INFO_SECURED_ATTESTATION - Retrieve attestation report of the boot.
* HL_INFO_REGISTER_EVENTFD - Register eventfd for event notifications.
* HL_INFO_UNREGISTER_EVENTFD - Unregister eventfd
* HL_INFO_GET_EVENTS - Retrieve the last occurred events
* HL_INFO_UNDEFINED_OPCODE_EVENT - Retrieve last undefined opcode error information.
* May return 0 even though no new data is available, in that case
* timestamp will be 0.
* HL_INFO_ENGINE_STATUS - Retrieve the status of all the h/w engines in the asic.
* HL_INFO_PAGE_FAULT_EVENT - Retrieve parameters of captured page fault.
* May return 0 even though no new data is available, in that case
* timestamp will be 0.
* HL_INFO_USER_MAPPINGS - Retrieve user mappings, captured after page fault event.
* HL_INFO_FW_GENERIC_REQ - Send generic request to FW.
* HL_INFO_HW_ERR_EVENT - Retrieve information on the reported HW error.
* May return 0 even though no new data is available, in that case
* timestamp will be 0.
* HL_INFO_FW_ERR_EVENT - Retrieve information on the reported FW error.
* May return 0 even though no new data is available, in that case
* timestamp will be 0.
*/
#define HL_INFO_HW_IP_INFO 0
#define HL_INFO_HW_EVENTS 1