linux-kernel - [PATCH 5/5] habanalabs: provide historical maximum of various sensors

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Message-Id: <20200207081520.5368-5-oded.gabbay@gmail.com>
Date:   Fri,  7 Feb 2020 10:15:20 +0200
From:   Oded Gabbay <oded.gabbay@...il.com>
To:     linux-kernel@...r.kernel.org, oshpigelman@...ana.ai,
        ttayar@...ana.ai
Cc:     gregkh@...uxfoundation.org,
        Christine Gharzuzi <cgharzuzi@...ana.ai>
Subject: [PATCH 5/5] habanalabs: provide historical maximum of various sensors

From: Christine Gharzuzi <cgharzuzi@...ana.ai>

Add support for hwmon_in_highest, hwmon_temp_highest and hwmon_curr_highest
attributes. These attributes retrieve the historical maximum voltage,
temperature and current that were sampled, respectively.

Signed-off-by: Christine Gharzuzi <cgharzuzi@...ana.ai>
Reviewed-by: Oded Gabbay <oded.gabbay@...il.com>
Signed-off-by: Oded Gabbay <oded.gabbay@...il.com>
---
 drivers/misc/habanalabs/hwmon.c            | 6 ++++++
 drivers/misc/habanalabs/include/armcp_if.h | 9 ++++++---
 2 files changed, 12 insertions(+), 3 deletions(-)

diff --git a/drivers/misc/habanalabs/hwmon.c b/drivers/misc/habanalabs/hwmon.c
index 3539190b1caa..a21a26e07c3b 100644
--- a/drivers/misc/habanalabs/hwmon.c
+++ b/drivers/misc/habanalabs/hwmon.c
@@ -127,6 +127,7 @@ static int hl_read(struct device *dev, enum hwmon_sensor_types type,
 		case hwmon_temp_max_hyst:
 		case hwmon_temp_crit_hyst:
 		case hwmon_temp_offset:
+		case hwmon_temp_highest:
 			break;
 		default:
 			return -EINVAL;
@@ -139,6 +140,7 @@ static int hl_read(struct device *dev, enum hwmon_sensor_types type,
 		case hwmon_in_input:
 		case hwmon_in_min:
 		case hwmon_in_max:
+		case hwmon_in_highest:
 			break;
 		default:
 			return -EINVAL;
@@ -151,6 +153,7 @@ static int hl_read(struct device *dev, enum hwmon_sensor_types type,
 		case hwmon_curr_input:
 		case hwmon_curr_min:
 		case hwmon_curr_max:
+		case hwmon_curr_highest:
 			break;
 		default:
 			return -EINVAL;
@@ -230,6 +233,7 @@ static umode_t hl_is_visible(const void *data, enum hwmon_sensor_types type,
 		case hwmon_temp_max_hyst:
 		case hwmon_temp_crit:
 		case hwmon_temp_crit_hyst:
+		case hwmon_temp_highest:
 			return 0444;
 		case hwmon_temp_offset:
 			return 0644;
@@ -240,6 +244,7 @@ static umode_t hl_is_visible(const void *data, enum hwmon_sensor_types type,
 		case hwmon_in_input:
 		case hwmon_in_min:
 		case hwmon_in_max:
+		case hwmon_in_highest:
 			return 0444;
 		}
 		break;
@@ -248,6 +253,7 @@ static umode_t hl_is_visible(const void *data, enum hwmon_sensor_types type,
 		case hwmon_curr_input:
 		case hwmon_curr_min:
 		case hwmon_curr_max:
+		case hwmon_curr_highest:
 			return 0444;
 		}
 		break;
diff --git a/drivers/misc/habanalabs/include/armcp_if.h b/drivers/misc/habanalabs/include/armcp_if.h
index 014549eaf919..bdd0a4c3a9cf 100644
--- a/drivers/misc/habanalabs/include/armcp_if.h
+++ b/drivers/misc/habanalabs/include/armcp_if.h
@@ -287,19 +287,22 @@ enum armcp_temp_type {
 	armcp_temp_max_hyst,
 	armcp_temp_crit,
 	armcp_temp_crit_hyst,
-	armcp_temp_offset = 19
+	armcp_temp_offset = 19,
+	armcp_temp_highest = 22
 };
 
 enum armcp_in_attributes {
 	armcp_in_input,
 	armcp_in_min,
-	armcp_in_max
+	armcp_in_max,
+	armcp_in_highest = 7
 };
 
 enum armcp_curr_attributes {
 	armcp_curr_input,
 	armcp_curr_min,
-	armcp_curr_max
+	armcp_curr_max,
+	armcp_curr_highest = 7
 };
 
 enum armcp_fan_attributes {
-- 
2.17.1