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accel/habanalabs: add a common handler for clock change events

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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>
This commit is contained in:
Tomer Tayar 2024-03-12 16:48:42 +02:00 committed by Ofir Bitton
parent 340dd775d7
commit 3d613b0cb5
2 changed files with 47 additions and 0 deletions
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46
drivers/accel/habanalabs/common/device.c
View File

@ -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);
}

1
drivers/accel/habanalabs/common/habanalabs.h
View File

@ -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