Commit 92a3a9b1 authored by Dani Liberman's avatar Dani Liberman Committed by Oded Gabbay
Browse files

accel/habanalabs: add description to several info ioctls 



Several info ioctls may return success although no data retrieved.

Signed-off-by: default avatarDani Liberman <dliberman@habana.ai>
Reviewed-by: default avatarOded Gabbay <ogabbay@kernel.org>
Signed-off-by: default avatarOded Gabbay <ogabbay@kernel.org>
parent 56921023

include/uapi/drm/habanalabs_accel.h

+10 −0
Original line number Diff line number Diff line
@@ -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