habanalabs: support temperature offset via sysfs (5557b138) · Commits · 戴 / test

drivers/misc/habanalabs/habanalabs.h

+2 −0

Original line number	Diff line number	Diff line
		@@ -1610,6 +1610,8 @@ int hl_pci_set_dma_mask(struct hl_device *hdev, u8 dma_mask);
		long hl_get_frequency(struct hl_device *hdev, u32 pll_index, bool curr);
		void hl_set_frequency(struct hl_device *hdev, u32 pll_index, u64 freq);
		long hl_get_temperature(struct hl_device *hdev, int sensor_index, u32 attr);
		int hl_set_temperature(struct hl_device *hdev,
		int sensor_index, u32 attr, long value);
		long hl_get_voltage(struct hl_device *hdev, int sensor_index, u32 attr);
		long hl_get_current(struct hl_device *hdev, int sensor_index, u32 attr);
		long hl_get_fan_speed(struct hl_device *hdev, int sensor_index, u32 attr);

drivers/misc/habanalabs/hwmon.c

+37 −0

Original line number	Diff line number	Diff line
		@@ -125,6 +125,7 @@ static int hl_read(struct device *dev, enum hwmon_sensor_types type,
		case hwmon_temp_crit:
		case hwmon_temp_max_hyst:
		case hwmon_temp_crit_hyst:
		case hwmon_temp_offset:
		break;
		default:
		return -EINVAL;
		@@ -192,6 +193,15 @@ static int hl_write(struct device *dev, enum hwmon_sensor_types type,
		return -ENODEV;

		switch (type) {
		case hwmon_temp:
		switch (attr) {
		case hwmon_temp_offset:
		break;
		default:
		return -EINVAL;
		}
		hl_set_temperature(hdev, channel, attr, val);
		break;
		case hwmon_pwm:
		switch (attr) {
		case hwmon_pwm_input:
		@@ -220,6 +230,8 @@ static umode_t hl_is_visible(const void *data, enum hwmon_sensor_types type,
		case hwmon_temp_crit:
		case hwmon_temp_crit_hyst:
		return 0444;
		case hwmon_temp_offset:
		return 0644;
		}
		break;
		case hwmon_in:
		@@ -291,6 +303,31 @@ long hl_get_temperature(struct hl_device *hdev, int sensor_index, u32 attr)
		return result;
		}

		int hl_set_temperature(struct hl_device *hdev,
		int sensor_index, u32 attr, long value)
		{
		struct armcp_packet pkt;
		int rc;

		memset(&pkt, 0, sizeof(pkt));

		pkt.ctl = cpu_to_le32(ARMCP_PACKET_TEMPERATURE_SET <<
		ARMCP_PKT_CTL_OPCODE_SHIFT);
		pkt.sensor_index = __cpu_to_le16(sensor_index);
		pkt.type = __cpu_to_le16(attr);
		pkt.value = __cpu_to_le64(value);

		rc = hdev->asic_funcs->send_cpu_message(hdev, (u32 *) &pkt, sizeof(pkt),
		SENSORS_PKT_TIMEOUT, NULL);

		if (rc)
		dev_err(hdev->dev,
		"Failed to set temperature of sensor %d, error %d\n",
		sensor_index, rc);

		return rc;
		}

		long hl_get_voltage(struct hl_device *hdev, int sensor_index, u32 attr)
		{
		struct armcp_packet pkt;

drivers/misc/habanalabs/include/armcp_if.h

+12 −1

Original line number	Diff line number	Diff line
		@@ -189,6 +189,10 @@ enum pq_init_status {
		* ArmCP to write to the structure, to prevent data corruption in case of
		* mismatched driver/FW versions.
		*
		* ARMCP_PACKET_TEMPERATURE_SET -
		* Set the value of the offset property of a specified thermal sensor.
		* The packet's arguments specify the desired sensor and the field to
		* set.
		*/

		enum armcp_packet_id {
		@@ -214,6 +218,8 @@ enum armcp_packet_id {
		ARMCP_PACKET_MAX_POWER_GET, /* sysfs */
		ARMCP_PACKET_MAX_POWER_SET, /* sysfs */
		ARMCP_PACKET_EEPROM_DATA_GET, /* sysfs */
		ARMCP_RESERVED,
		ARMCP_PACKET_TEMPERATURE_SET, /* sysfs */
		};

		#define ARMCP_PACKET_FENCE_VAL 0xFE8CE7A5
		@@ -271,12 +277,17 @@ enum armcp_packet_rc {
		armcp_packet_fault
		};

		/*
		* armcp_temp_type should adhere to hwmon_temp_attributes
		* defined in Linux kernel hwmon.h file
		*/
		enum armcp_temp_type {
		armcp_temp_input,
		armcp_temp_max = 6,
		armcp_temp_max_hyst,
		armcp_temp_crit,
		armcp_temp_crit_hyst
		armcp_temp_crit_hyst,
		armcp_temp_offset = 19
		};

		enum armcp_in_attributes {

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