diff options
| author | Tomer Tayar <ttayar@habana.ai> | 2024-03-12 16:48:42 +0200 |
|---|---|---|
| committer | Ofir Bitton <obitton@habana.ai> | 2024-06-23 09:53:04 +0300 |
| commit | 3d613b0cb5ef349ce93ae7e28f74ef8a75dc10ac (patch) | |
| tree | 0b132a14bbba97e66ea94acd4579801603e889a2 | |
| parent | 340dd775d7fde09e5784fe411cd87d5b398785ae (diff) | |
accel/habanalabs: add a common handler for clock change events
As the new dynamic EQ includes clock change events which are common and
not ASIC-specific, add a common handler for these events.
Signed-off-by: Tomer Tayar <ttayar@habana.ai>
Reviewed-by: Ofir Bitton <obitton@habana.ai>
Signed-off-by: Ofir Bitton <obitton@habana.ai>
| -rw-r--r-- | drivers/accel/habanalabs/common/device.c | 46 | ||||
| -rw-r--r-- | drivers/accel/habanalabs/common/habanalabs.h | 1 |
2 files changed, 47 insertions, 0 deletions
diff --git a/drivers/accel/habanalabs/common/device.c b/drivers/accel/habanalabs/common/device.c index fd117489a05a..31daa9184537 100644 --- a/drivers/accel/habanalabs/common/device.c +++ b/drivers/accel/habanalabs/common/device.c @@ -2860,3 +2860,49 @@ void hl_eq_heartbeat_event_handle(struct hl_device *hdev) hdev->heartbeat_debug_info.heartbeat_event_counter++; hdev->eq_heartbeat_received = true; } + +void hl_handle_clk_change_event(struct hl_device *hdev, u16 event_type, u64 *event_mask) +{ + struct hl_clk_throttle *clk_throttle = &hdev->clk_throttling; + ktime_t zero_time = ktime_set(0, 0); + + mutex_lock(&clk_throttle->lock); + + switch (event_type) { + case EQ_EVENT_POWER_EVT_START: + clk_throttle->current_reason |= HL_CLK_THROTTLE_POWER; + clk_throttle->aggregated_reason |= HL_CLK_THROTTLE_POWER; + clk_throttle->timestamp[HL_CLK_THROTTLE_TYPE_POWER].start = ktime_get(); + clk_throttle->timestamp[HL_CLK_THROTTLE_TYPE_POWER].end = zero_time; + dev_dbg_ratelimited(hdev->dev, "Clock throttling due to power consumption\n"); + break; + + case EQ_EVENT_POWER_EVT_END: + clk_throttle->current_reason &= ~HL_CLK_THROTTLE_POWER; + clk_throttle->timestamp[HL_CLK_THROTTLE_TYPE_POWER].end = ktime_get(); + dev_dbg_ratelimited(hdev->dev, "Power envelop is safe, back to optimal clock\n"); + break; + + case EQ_EVENT_THERMAL_EVT_START: + clk_throttle->current_reason |= HL_CLK_THROTTLE_THERMAL; + clk_throttle->aggregated_reason |= HL_CLK_THROTTLE_THERMAL; + clk_throttle->timestamp[HL_CLK_THROTTLE_TYPE_THERMAL].start = ktime_get(); + clk_throttle->timestamp[HL_CLK_THROTTLE_TYPE_THERMAL].end = zero_time; + *event_mask |= HL_NOTIFIER_EVENT_USER_ENGINE_ERR; + dev_info_ratelimited(hdev->dev, "Clock throttling due to overheating\n"); + break; + + case EQ_EVENT_THERMAL_EVT_END: + clk_throttle->current_reason &= ~HL_CLK_THROTTLE_THERMAL; + clk_throttle->timestamp[HL_CLK_THROTTLE_TYPE_THERMAL].end = ktime_get(); + *event_mask |= HL_NOTIFIER_EVENT_USER_ENGINE_ERR; + dev_info_ratelimited(hdev->dev, "Thermal envelop is safe, back to optimal clock\n"); + break; + + default: + dev_err(hdev->dev, "Received invalid clock change event %d\n", event_type); + break; + } + + mutex_unlock(&clk_throttle->lock); +} diff --git a/drivers/accel/habanalabs/common/habanalabs.h b/drivers/accel/habanalabs/common/habanalabs.h index 0d16b5310add..3ea1b131cd42 100644 --- a/drivers/accel/habanalabs/common/habanalabs.h +++ b/drivers/accel/habanalabs/common/habanalabs.h @@ -4063,6 +4063,7 @@ void hl_enable_err_info_capture(struct hl_error_info *captured_err_info); void hl_init_cpu_for_irq(struct hl_device *hdev); void hl_set_irq_affinity(struct hl_device *hdev, int irq); void hl_eq_heartbeat_event_handle(struct hl_device *hdev); +void hl_handle_clk_change_event(struct hl_device *hdev, u16 event_type, u64 *event_mask); #ifdef CONFIG_DEBUG_FS |