diff options
| author | Ofir Bitton <obitton@habana.ai> | 2022-11-30 13:35:32 +0100 |
|---|---|---|
| committer | Oded Gabbay <ogabbay@kernel.org> | 2023-01-26 09:56:21 +0100 |
| commit | b219d209ab38f20865ad992bc8e54dba761bca26 (patch) | |
| tree | 93868183d0b847ecb0e78b407ff6bdab07a778bb /drivers/misc/habanalabs | |
| parent | habanalabs: skip device idle check in hpriv_release if in reset (diff) | |
| download | linux-b219d209ab38f20865ad992bc8e54dba761bca26.tar.xz linux-b219d209ab38f20865ad992bc8e54dba761bca26.zip | |
habanalabs/gaudi2: support abrupt device reset event
In certain scenarios, firmware might encounter a fatal event for
which a device reset is required. Hence, a proper notification
is needed for driver to be aware and initiate a reset sequence.
In secured environments the reset will be performed by firmware
without an explicit request from the driver.
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 'drivers/misc/habanalabs')
3 files changed, 4 insertions, 0 deletions
diff --git a/drivers/misc/habanalabs/gaudi2/gaudi2.c b/drivers/misc/habanalabs/gaudi2/gaudi2.c index a187e1ea68ee..85041f33e42a 100644 --- a/drivers/misc/habanalabs/gaudi2/gaudi2.c +++ b/drivers/misc/habanalabs/gaudi2/gaudi2.c @@ -9226,6 +9226,7 @@ static void gaudi2_handle_eqe(struct hl_device *hdev, struct hl_eq_entry *eq_ent break; case GAUDI2_EVENT_CPU_FP32_NOT_SUPPORTED: + case GAUDI2_EVENT_DEV_RESET_REQ: event_mask |= HL_NOTIFIER_EVENT_GENERAL_HW_ERR; error_count = GAUDI2_NA_EVENT_CAUSE; is_critical = true; diff --git a/drivers/misc/habanalabs/include/gaudi2/gaudi2_async_events.h b/drivers/misc/habanalabs/include/gaudi2/gaudi2_async_events.h index 305b576222e6..50852cc80373 100644 --- a/drivers/misc/habanalabs/include/gaudi2/gaudi2_async_events.h +++ b/drivers/misc/habanalabs/include/gaudi2/gaudi2_async_events.h @@ -958,6 +958,7 @@ enum gaudi2_async_event_id { GAUDI2_EVENT_CPU11_STATUS_NIC11_ENG1 = 1318, GAUDI2_EVENT_ARC_DCCM_FULL = 1319, GAUDI2_EVENT_CPU_FP32_NOT_SUPPORTED = 1320, + GAUDI2_EVENT_DEV_RESET_REQ = 1321, GAUDI2_EVENT_SIZE, }; diff --git a/drivers/misc/habanalabs/include/gaudi2/gaudi2_async_ids_map_extended.h b/drivers/misc/habanalabs/include/gaudi2/gaudi2_async_ids_map_extended.h index d510cb10c883..82be01bea98e 100644 --- a/drivers/misc/habanalabs/include/gaudi2/gaudi2_async_ids_map_extended.h +++ b/drivers/misc/habanalabs/include/gaudi2/gaudi2_async_ids_map_extended.h @@ -2665,6 +2665,8 @@ static struct gaudi2_async_events_ids_map gaudi2_irq_map_table[] = { .msg = 1, .reset = 0, .name = "ARC_DCCM_FULL" }, { .fc_id = 1320, .cpu_id = 626, .valid = 1, .msg = 1, .reset = 1, .name = "FP32_NOT_SUPPORTED" }, + { .fc_id = 1321, .cpu_id = 627, .valid = 1, + .msg = 1, .reset = 1, .name = "DEV_RESET_REQ" }, }; #endif /* __GAUDI2_ASYNC_IDS_MAP_EVENTS_EXT_H_ */ |