diff options
| author | Dani Liberman | 2023-04-20 19:33:34 +0300 |
|---|---|---|
| committer | Oded Gabbay | 2023-06-08 12:35:56 +0300 |
| commit | 92a3a9b1a3997cf67aca7874e7f61b102ea2f27c (patch) | |
| tree | 2b86af1046b104bdd3e92c71b76ffa51bd1a63b7 | |
| parent | 569210233a31fa23932b269779144252ce7bfee9 (diff) | |
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>
| -rw-r--r-- | include/uapi/drm/habanalabs_accel.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/include/uapi/drm/habanalabs_accel.h b/include/uapi/drm/habanalabs_accel.h index d9ef1b151d04..e6436f3e8ea6 100644 --- a/include/uapi/drm/habanalabs_accel.h +++ b/include/uapi/drm/habanalabs_accel.h @@ -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 |