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Date: Mon, 9 Mar 2020 13:25:47 +0200
From: Omer Shpigelman <oshpigelman@...ana.ai>
To: oded.gabbay@...il.com
Cc: linux-kernel@...r.kernel.org
Subject: [PATCH] habanalabs: add print upon clock change
Add print upon clock slow down due to power consumption or overheating.
In addition, add print when back to optimal clock.
Signed-off-by: Omer Shpigelman <oshpigelman@...ana.ai>
---
drivers/misc/habanalabs/goya/goya.c | 50 ++++++++++++++++++-
.../include/goya/goya_async_events.h | 4 ++
2 files changed, 53 insertions(+), 1 deletion(-)
diff --git a/drivers/misc/habanalabs/goya/goya.c b/drivers/misc/habanalabs/goya/goya.c
index 9d4295cc83cf..1ccf2ed9a8dc 100644
--- a/drivers/misc/habanalabs/goya/goya.c
+++ b/drivers/misc/habanalabs/goya/goya.c
@@ -324,7 +324,11 @@ static u32 goya_all_events[] = {
GOYA_ASYNC_EVENT_ID_DMA_BM_CH1,
GOYA_ASYNC_EVENT_ID_DMA_BM_CH2,
GOYA_ASYNC_EVENT_ID_DMA_BM_CH3,
- GOYA_ASYNC_EVENT_ID_DMA_BM_CH4
+ GOYA_ASYNC_EVENT_ID_DMA_BM_CH4,
+ GOYA_ASYNC_EVENT_ID_POWER_ENV_S,
+ GOYA_ASYNC_EVENT_ID_POWER_ENV_E,
+ GOYA_ASYNC_EVENT_ID_THERMAL_ENV_S,
+ GOYA_ASYNC_EVENT_ID_THERMAL_ENV_E
};
static int goya_mmu_clear_pgt_range(struct hl_device *hdev);
@@ -4389,6 +4393,14 @@ static const char *_goya_get_event_desc(u16 event_type)
return "TPC%d_bmon_spmu";
case GOYA_ASYNC_EVENT_ID_DMA_BM_CH0 ... GOYA_ASYNC_EVENT_ID_DMA_BM_CH4:
return "DMA_bm_ch%d";
+ case GOYA_ASYNC_EVENT_ID_POWER_ENV_S:
+ return "POWER_ENV_S";
+ case GOYA_ASYNC_EVENT_ID_POWER_ENV_E:
+ return "POWER_ENV_E";
+ case GOYA_ASYNC_EVENT_ID_THERMAL_ENV_S:
+ return "THERMAL_ENV_S";
+ case GOYA_ASYNC_EVENT_ID_THERMAL_ENV_E:
+ return "THERMAL_ENV_E";
default:
return "N/A";
}
@@ -4619,6 +4631,33 @@ static int goya_unmask_irq(struct hl_device *hdev, u16 event_type)
return rc;
}
+static void goya_print_clk_change_info(struct hl_device *hdev, u16 event_type)
+{
+ switch (event_type) {
+ case GOYA_ASYNC_EVENT_ID_POWER_ENV_S:
+ dev_info_ratelimited(hdev->dev,
+ "Clock throttling due to power consumption\n");
+ break;
+ case GOYA_ASYNC_EVENT_ID_POWER_ENV_E:
+ dev_info_ratelimited(hdev->dev,
+ "Power envelop is safe, back to optimal clock\n");
+ break;
+ case GOYA_ASYNC_EVENT_ID_THERMAL_ENV_S:
+ dev_info_ratelimited(hdev->dev,
+ "Clock throttling due to overheating\n");
+ break;
+ case GOYA_ASYNC_EVENT_ID_THERMAL_ENV_E:
+ 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;
+ }
+}
+
void goya_handle_eqe(struct hl_device *hdev, struct hl_eq_entry *eq_entry)
{
u32 ctl = le32_to_cpu(eq_entry->hdr.ctl);
@@ -4702,6 +4741,15 @@ void goya_handle_eqe(struct hl_device *hdev, struct hl_eq_entry *eq_entry)
goya_unmask_irq(hdev, event_type);
break;
+ case GOYA_ASYNC_EVENT_ID_POWER_ENV_S:
+ case GOYA_ASYNC_EVENT_ID_POWER_ENV_E:
+ case GOYA_ASYNC_EVENT_ID_THERMAL_ENV_S:
+ case GOYA_ASYNC_EVENT_ID_THERMAL_ENV_E:
+ goya_print_irq_info(hdev, event_type, false);
+ goya_print_clk_change_info(hdev, event_type);
+ goya_unmask_irq(hdev, event_type);
+ break;
+
default:
dev_err(hdev->dev, "Received invalid H/W interrupt %d\n",
event_type);
diff --git a/drivers/misc/habanalabs/include/goya/goya_async_events.h b/drivers/misc/habanalabs/include/goya/goya_async_events.h
index bb7a1aa3279e..6be41a846c99 100644
--- a/drivers/misc/habanalabs/include/goya/goya_async_events.h
+++ b/drivers/misc/habanalabs/include/goya/goya_async_events.h
@@ -188,6 +188,10 @@ enum goya_async_event_id {
GOYA_ASYNC_EVENT_ID_HALT_MACHINE = 485,
GOYA_ASYNC_EVENT_ID_INTS_REGISTER = 486,
GOYA_ASYNC_EVENT_ID_SOFT_RESET = 487,
+ GOYA_ASYNC_EVENT_ID_POWER_ENV_S = 507,
+ GOYA_ASYNC_EVENT_ID_POWER_ENV_E = 508,
+ GOYA_ASYNC_EVENT_ID_THERMAL_ENV_S = 509,
+ GOYA_ASYNC_EVENT_ID_THERMAL_ENV_E = 510,
GOYA_ASYNC_EVENT_ID_LAST_VALID_ID = 1023,
GOYA_ASYNC_EVENT_ID_SIZE
};
--
2.17.1
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