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habanalabs/gaudi: add FW alive event support

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In order for driver to be aware of process or thread crashes inside
GAUDI's CPU, we introduce a new event which contains all relevant
information. Upon event reception, driver will dump information and
will reset the device.

Signed-off-by: Ofir Bitton <obitton@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
This commit is contained in:
Ofir Bitton 2021-06-02 11:56:31 +03:00 committed by Oded Gabbay
parent a39725819c
commit 254fac6d1a
4 changed files with 32 additions and 1 deletions
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15
drivers/misc/habanalabs/gaudi/gaudi.c
View File

@ -7451,6 +7451,16 @@ static void gaudi_print_out_of_sync_info(struct hl_device *hdev,
sync_err->pi, sync_err->ci, q->pi, atomic_read(&q->ci));
}
static void gaudi_print_fw_alive_info(struct hl_device *hdev,
struct hl_eq_fw_alive *fw_alive)
{
dev_err(hdev->dev,
"FW alive report: severity=%s, process_id=%u, thread_id=%u, uptime=%llu seconds\n",
(fw_alive->severity == FW_ALIVE_SEVERITY_MINOR) ?
"Minor" : "Critical", fw_alive->process_id,
fw_alive->thread_id, fw_alive->uptime_seconds);
}
static int gaudi_soft_reset_late_init(struct hl_device *hdev)
{
struct gaudi_device *gaudi = hdev->asic_specific;
@ -7902,6 +7912,11 @@ static void gaudi_handle_eqe(struct hl_device *hdev,
gaudi_print_out_of_sync_info(hdev, &eq_entry->pkt_sync_err);
goto reset_device;
case GAUDI_EVENT_FW_ALIVE_S:
gaudi_print_irq_info(hdev, event_type, false);
gaudi_print_fw_alive_info(hdev, &eq_entry->fw_alive);
goto reset_device;
default:
dev_err(hdev->dev, "Received invalid H/W interrupt %d\n",
event_type);

15
drivers/misc/habanalabs/include/common/cpucp_if.h
View File

@ -84,6 +84,20 @@ struct hl_eq_sm_sei_data {
__u8 pad[3];
};
enum hl_fw_alive_severity {
FW_ALIVE_SEVERITY_MINOR,
FW_ALIVE_SEVERITY_CRITICAL
};
struct hl_eq_fw_alive {
__le64 uptime_seconds;
__le32 process_id;
__le32 thread_id;
/* enum hl_fw_alive_severity */
__u8 severity;
__u8 pad[7];
};
struct hl_eq_entry {
struct hl_eq_header hdr;
union {
@ -91,6 +105,7 @@ struct hl_eq_entry {
struct hl_eq_hbm_ecc_data hbm_ecc_data;
struct hl_eq_sm_sei_data sm_sei_data;
struct cpucp_pkt_sync_err pkt_sync_err;
struct hl_eq_fw_alive fw_alive;
__le64 data[7];
};
};

1
drivers/misc/habanalabs/include/gaudi/gaudi_async_events.h
View File

@ -303,6 +303,7 @@ enum gaudi_async_event_id {
GAUDI_EVENT_NIC3_QP1 = 619,
GAUDI_EVENT_NIC4_QP0 = 620,
GAUDI_EVENT_NIC4_QP1 = 621,
GAUDI_EVENT_FW_ALIVE_S = 645,
GAUDI_EVENT_DEV_RESET_REQ = 646,
GAUDI_EVENT_PKT_QUEUE_OUT_SYNC = 647,
GAUDI_EVENT_FIX_POWER_ENV_S = 658,

2
drivers/misc/habanalabs/include/gaudi/gaudi_async_ids_map_extended.h
View File

@ -669,7 +669,7 @@ static struct gaudi_async_events_ids_map gaudi_irq_map_table[] = {
{ .fc_id = 642, .cpu_id = 491, .valid = 0, .name = "" },
{ .fc_id = 643, .cpu_id = 492, .valid = 0, .name = "" },
{ .fc_id = 644, .cpu_id = 493, .valid = 0, .name = "" },
{ .fc_id = 645, .cpu_id = 494, .valid = 0, .name = "" },
{ .fc_id = 645, .cpu_id = 494, .valid = 1, .name = "FW_ALIVE_S" },
{ .fc_id = 646, .cpu_id = 495, .valid = 1, .name = "DEV_RESET_REQ" },
{ .fc_id = 647, .cpu_id = 496, .valid = 1,
.name = "PKT_QUEUE_OUT_SYNC" },