diff options
| author | Ofir Bitton <obitton@habana.ai> | 2020-09-10 10:10:55 +0300 |
|---|---|---|
| committer | Oded Gabbay <ogabbay@kernel.org> | 2020-11-30 10:47:30 +0200 |
| commit | 5fe1c17ddf2e5e5d05e983b56ebbc0d1c702b16a (patch) | |
| tree | ac3b702aea9656ca3a681709e33a9f9b5b940a30 /include/uapi/misc | |
| parent | 4bb1f2f3fb31ed60a23064a8fc4d5ecde5d1002d (diff) | |
| download | lwn-5fe1c17ddf2e5e5d05e983b56ebbc0d1c702b16a.tar.gz lwn-5fe1c17ddf2e5e5d05e983b56ebbc0d1c702b16a.zip | |
habanalabs: sync stream collective infrastructure
Define new API for collective wait support and modify sync stream
common flow. In addition add kernel CB allocation support for
internal queues.
Signed-off-by: Ofir Bitton <obitton@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Diffstat (limited to 'include/uapi/misc')
| -rw-r--r-- | include/uapi/misc/habanalabs.h | 17 |
1 files changed, 13 insertions, 4 deletions
diff --git a/include/uapi/misc/habanalabs.h b/include/uapi/misc/habanalabs.h index 5753157e71b3..2b244d0bdc26 100644 --- a/include/uapi/misc/habanalabs.h +++ b/include/uapi/misc/habanalabs.h @@ -523,7 +523,8 @@ struct hl_cs_chunk { */ __u64 cb_handle; - /* Relevant only when HL_CS_FLAGS_WAIT is set. + /* Relevant only when HL_CS_FLAGS_WAIT or + * HL_CS_FLAGS_COLLECTIVE_WAIT is set. * This holds address of array of u64 values that contain * signal CS sequence numbers. The wait described by this job * will listen on all those signals (wait event per signal) @@ -541,7 +542,8 @@ struct hl_cs_chunk { */ __u32 cb_size; - /* Relevant only when HL_CS_FLAGS_WAIT is set. + /* Relevant only when HL_CS_FLAGS_WAIT or + * HL_CS_FLAGS_COLLECTIVE_WAIT is set. * Number of entries in signal_seq_arr */ __u32 num_signal_seq_arr; @@ -550,14 +552,21 @@ struct hl_cs_chunk { /* HL_CS_CHUNK_FLAGS_* */ __u32 cs_chunk_flags; + /* Relevant only when HL_CS_FLAGS_COLLECTIVE_WAIT is set. + * This holds the collective engine ID. The wait described by this job + * will sync with this engine and with all NICs before completion. + */ + __u32 collective_engine_id; + /* Align structure to 64 bytes */ - __u32 pad[11]; + __u32 pad[10]; }; -/* SIGNAL and WAIT flags are mutually exclusive */ +/* SIGNAL and WAIT/COLLECTIVE_WAIT flags are mutually exclusive */ #define HL_CS_FLAGS_FORCE_RESTORE 0x1 #define HL_CS_FLAGS_SIGNAL 0x2 #define HL_CS_FLAGS_WAIT 0x4 +#define HL_CS_FLAGS_COLLECTIVE_WAIT 0x8 #define HL_CS_STATUS_SUCCESS 0 |