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Subject[PATCH] habanalabs: display card name as sensors header
Date
To allow the user to use a custom file for the HWMON lm-sensors library
per card type, the driver needs to register the HWMON sensors with the
specific card type name.

The card name is supplied by the F/W running on the device. If the F/W is
old and doesn't supply a card name, a default card name is displayed as
the sensors group name.

Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
---
drivers/misc/habanalabs/goya/goya.c | 4 ++++
drivers/misc/habanalabs/goya/goyaP.h | 2 ++
drivers/misc/habanalabs/hwmon.c | 4 +++-
drivers/misc/habanalabs/include/armcp_if.h | 17 ++++++++++++++++-
4 files changed, 25 insertions(+), 2 deletions(-)

diff --git a/drivers/misc/habanalabs/goya/goya.c b/drivers/misc/habanalabs/goya/goya.c
index 1267ec75b19f..c88c2fea97b9 100644
--- a/drivers/misc/habanalabs/goya/goya.c
+++ b/drivers/misc/habanalabs/goya/goya.c
@@ -4961,6 +4961,10 @@ int goya_armcp_info_get(struct hl_device *hdev)
prop->dram_end_address = prop->dram_base_address + dram_size;
}

+ if (!strlen(prop->armcp_info.card_name))
+ strncpy(prop->armcp_info.card_name, GOYA_DEFAULT_CARD_NAME,
+ CARD_NAME_MAX_LEN);
+
return 0;
}

diff --git a/drivers/misc/habanalabs/goya/goyaP.h b/drivers/misc/habanalabs/goya/goyaP.h
index f830cfd5c04d..06da71e8d7ea 100644
--- a/drivers/misc/habanalabs/goya/goyaP.h
+++ b/drivers/misc/habanalabs/goya/goyaP.h
@@ -55,6 +55,8 @@

#define DRAM_PHYS_DEFAULT_SIZE 0x100000000ull /* 4GB */

+#define GOYA_DEFAULT_CARD_NAME "HL1000"
+
/* DRAM Memory Map */

#define CPU_FW_IMAGE_SIZE 0x10000000 /* 256MB */
diff --git a/drivers/misc/habanalabs/hwmon.c b/drivers/misc/habanalabs/hwmon.c
index 6c60b901e375..7be4bace9b4f 100644
--- a/drivers/misc/habanalabs/hwmon.c
+++ b/drivers/misc/habanalabs/hwmon.c
@@ -421,6 +421,7 @@ void hl_set_pwm_info(struct hl_device *hdev, int sensor_index, u32 attr,
int hl_hwmon_init(struct hl_device *hdev)
{
struct device *dev = hdev->pdev ? &hdev->pdev->dev : hdev->dev;
+ struct asic_fixed_properties *prop = &hdev->asic_prop;
int rc;

if ((hdev->hwmon_initialized) || !(hdev->fw_loading))
@@ -430,7 +431,8 @@ int hl_hwmon_init(struct hl_device *hdev)
hdev->hl_chip_info->ops = &hl_hwmon_ops;

hdev->hwmon_dev = hwmon_device_register_with_info(dev,
- "habanalabs", hdev, hdev->hl_chip_info, NULL);
+ prop->armcp_info.card_name, hdev,
+ hdev->hl_chip_info, NULL);
if (IS_ERR(hdev->hwmon_dev)) {
rc = PTR_ERR(hdev->hwmon_dev);
dev_err(hdev->dev,
diff --git a/drivers/misc/habanalabs/include/armcp_if.h b/drivers/misc/habanalabs/include/armcp_if.h
index 1f1e35e86d84..5565bce60bc9 100644
--- a/drivers/misc/habanalabs/include/armcp_if.h
+++ b/drivers/misc/habanalabs/include/armcp_if.h
@@ -1,6 +1,6 @@
/* SPDX-License-Identifier: GPL-2.0
*
- * Copyright 2016-2018 HabanaLabs, Ltd.
+ * Copyright 2016-2019 HabanaLabs, Ltd.
* All Rights Reserved.
*
*/
@@ -310,6 +310,7 @@ struct eq_generic_event {
* ArmCP info
*/

+#define CARD_NAME_MAX_LEN 16
#define VERSION_MAX_LEN 128
#define ARMCP_MAX_SENSORS 128

@@ -318,6 +319,19 @@ struct armcp_sensor {
__le32 flags;
};

+/**
+ * struct armcp_info - host driver's necessary info from ArmCP.
+ * @sensors: available sensors description.
+ * @kernel_version: ArmCP linux kernel version.
+ * @reserved: reserved field.
+ * @cpld_version: CPLD programmed F/W version.
+ * @infineon_version: Infineon main DC-DC version.
+ * @fuse_version: silicon production FUSE information.
+ * @thermal_version: thermald S/W version.
+ * @armcp_version: ArmCP S/W version.
+ * @dram_size: available DRAM size.
+ * @card_name: card name that will be displayed in HWMON subsystem on the host
+ */
struct armcp_info {
struct armcp_sensor sensors[ARMCP_MAX_SENSORS];
__u8 kernel_version[VERSION_MAX_LEN];
@@ -328,6 +342,7 @@ struct armcp_info {
__u8 thermal_version[VERSION_MAX_LEN];
__u8 armcp_version[VERSION_MAX_LEN];
__le64 dram_size;
+ char card_name[CARD_NAME_MAX_LEN];
};

#endif /* ARMCP_IF_H */
--
2.17.1
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