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-rw-r--r--drivers/misc/habanalabs/common/hwmon.c934
1 files changed, 934 insertions, 0 deletions
diff --git a/drivers/misc/habanalabs/common/hwmon.c b/drivers/misc/habanalabs/common/hwmon.c
new file mode 100644
index 000000000..55eb02038
--- /dev/null
+++ b/drivers/misc/habanalabs/common/hwmon.c
@@ -0,0 +1,934 @@
+// SPDX-License-Identifier: GPL-2.0
+
+/*
+ * Copyright 2016-2019 HabanaLabs, Ltd.
+ * All Rights Reserved.
+ */
+
+#include "habanalabs.h"
+
+#include <linux/pci.h>
+#include <linux/hwmon.h>
+
+#define HWMON_NR_SENSOR_TYPES (hwmon_max)
+
+#ifdef _HAS_HWMON_HWMON_T_ENABLE
+
+static u32 fixup_flags_legacy_fw(struct hl_device *hdev, enum hwmon_sensor_types type,
+ u32 cpucp_flags)
+{
+ u32 flags;
+
+ switch (type) {
+ case hwmon_temp:
+ flags = (cpucp_flags << 1) | HWMON_T_ENABLE;
+ break;
+
+ case hwmon_in:
+ flags = (cpucp_flags << 1) | HWMON_I_ENABLE;
+ break;
+
+ case hwmon_curr:
+ flags = (cpucp_flags << 1) | HWMON_C_ENABLE;
+ break;
+
+ case hwmon_fan:
+ flags = (cpucp_flags << 1) | HWMON_F_ENABLE;
+ break;
+
+ case hwmon_power:
+ flags = (cpucp_flags << 1) | HWMON_P_ENABLE;
+ break;
+
+ case hwmon_pwm:
+ /* enable bit was here from day 1, so no need to adjust */
+ flags = cpucp_flags;
+ break;
+
+ default:
+ dev_err(hdev->dev, "unsupported h/w sensor type %d\n", type);
+ flags = cpucp_flags;
+ break;
+ }
+
+ return flags;
+}
+
+static u32 fixup_attr_legacy_fw(u32 attr)
+{
+ return (attr - 1);
+}
+
+#else
+
+static u32 fixup_flags_legacy_fw(struct hl_device *hdev, enum hwmon_sensor_types type,
+ u32 cpucp_flags)
+{
+ return cpucp_flags;
+}
+
+static u32 fixup_attr_legacy_fw(u32 attr)
+{
+ return attr;
+}
+
+#endif /* !_HAS_HWMON_HWMON_T_ENABLE */
+
+static u32 adjust_hwmon_flags(struct hl_device *hdev, enum hwmon_sensor_types type, u32 cpucp_flags)
+{
+ u32 flags, cpucp_input_val;
+ bool use_cpucp_enum;
+
+ use_cpucp_enum = (hdev->asic_prop.fw_app_cpu_boot_dev_sts0 &
+ CPU_BOOT_DEV_STS0_MAP_HWMON_EN) ? true : false;
+
+ /* If f/w is using it's own enum, we need to check if the properties values are aligned.
+ * If not, it means we need to adjust the values to the new format that is used in the
+ * kernel since 5.6 (enum values were incremented by 1 by adding a new enable value).
+ */
+ if (use_cpucp_enum) {
+ switch (type) {
+ case hwmon_temp:
+ cpucp_input_val = cpucp_temp_input;
+ if (cpucp_input_val == hwmon_temp_input)
+ flags = cpucp_flags;
+ else
+ flags = (cpucp_flags << 1) | HWMON_T_ENABLE;
+ break;
+
+ case hwmon_in:
+ cpucp_input_val = cpucp_in_input;
+ if (cpucp_input_val == hwmon_in_input)
+ flags = cpucp_flags;
+ else
+ flags = (cpucp_flags << 1) | HWMON_I_ENABLE;
+ break;
+
+ case hwmon_curr:
+ cpucp_input_val = cpucp_curr_input;
+ if (cpucp_input_val == hwmon_curr_input)
+ flags = cpucp_flags;
+ else
+ flags = (cpucp_flags << 1) | HWMON_C_ENABLE;
+ break;
+
+ case hwmon_fan:
+ cpucp_input_val = cpucp_fan_input;
+ if (cpucp_input_val == hwmon_fan_input)
+ flags = cpucp_flags;
+ else
+ flags = (cpucp_flags << 1) | HWMON_F_ENABLE;
+ break;
+
+ case hwmon_pwm:
+ /* enable bit was here from day 1, so no need to adjust */
+ flags = cpucp_flags;
+ break;
+
+ case hwmon_power:
+ cpucp_input_val = CPUCP_POWER_INPUT;
+ if (cpucp_input_val == hwmon_power_input)
+ flags = cpucp_flags;
+ else
+ flags = (cpucp_flags << 1) | HWMON_P_ENABLE;
+ break;
+
+ default:
+ dev_err(hdev->dev, "unsupported h/w sensor type %d\n", type);
+ flags = cpucp_flags;
+ break;
+ }
+ } else {
+ flags = fixup_flags_legacy_fw(hdev, type, cpucp_flags);
+ }
+
+ return flags;
+}
+
+int hl_build_hwmon_channel_info(struct hl_device *hdev, struct cpucp_sensor *sensors_arr)
+{
+ u32 num_sensors_for_type, flags, num_active_sensor_types = 0, arr_size = 0, *curr_arr;
+ u32 sensors_by_type_next_index[HWMON_NR_SENSOR_TYPES] = {0};
+ u32 *sensors_by_type[HWMON_NR_SENSOR_TYPES] = {NULL};
+ struct hwmon_channel_info **channels_info;
+ u32 counts[HWMON_NR_SENSOR_TYPES] = {0};
+ enum hwmon_sensor_types type;
+ int rc, i, j;
+
+ for (i = 0 ; i < CPUCP_MAX_SENSORS ; i++) {
+ type = le32_to_cpu(sensors_arr[i].type);
+
+ if ((type == 0) && (sensors_arr[i].flags == 0))
+ break;
+
+ if (type >= HWMON_NR_SENSOR_TYPES) {
+ dev_err(hdev->dev, "Got wrong sensor type %d from device\n", type);
+ return -EINVAL;
+ }
+
+ counts[type]++;
+ arr_size++;
+ }
+
+ for (i = 0 ; i < HWMON_NR_SENSOR_TYPES ; i++) {
+ if (counts[i] == 0)
+ continue;
+
+ num_sensors_for_type = counts[i] + 1;
+ dev_dbg(hdev->dev, "num_sensors_for_type %d = %d\n", i, num_sensors_for_type);
+
+ curr_arr = kcalloc(num_sensors_for_type, sizeof(*curr_arr), GFP_KERNEL);
+ if (!curr_arr) {
+ rc = -ENOMEM;
+ goto sensors_type_err;
+ }
+
+ num_active_sensor_types++;
+ sensors_by_type[i] = curr_arr;
+ }
+
+ for (i = 0 ; i < arr_size ; i++) {
+ type = le32_to_cpu(sensors_arr[i].type);
+ curr_arr = sensors_by_type[type];
+ flags = adjust_hwmon_flags(hdev, type, le32_to_cpu(sensors_arr[i].flags));
+ curr_arr[sensors_by_type_next_index[type]++] = flags;
+ }
+
+ channels_info = kcalloc(num_active_sensor_types + 1, sizeof(struct hwmon_channel_info *),
+ GFP_KERNEL);
+ if (!channels_info) {
+ rc = -ENOMEM;
+ goto channels_info_array_err;
+ }
+
+ for (i = 0 ; i < num_active_sensor_types ; i++) {
+ channels_info[i] = kzalloc(sizeof(*channels_info[i]), GFP_KERNEL);
+ if (!channels_info[i]) {
+ rc = -ENOMEM;
+ goto channel_info_err;
+ }
+ }
+
+ for (i = 0, j = 0 ; i < HWMON_NR_SENSOR_TYPES ; i++) {
+ if (!sensors_by_type[i])
+ continue;
+
+ channels_info[j]->type = i;
+ channels_info[j]->config = sensors_by_type[i];
+ j++;
+ }
+
+ hdev->hl_chip_info->info = (const struct hwmon_channel_info **)channels_info;
+
+ return 0;
+
+channel_info_err:
+ for (i = 0 ; i < num_active_sensor_types ; i++) {
+ if (channels_info[i]) {
+ kfree(channels_info[i]->config);
+ kfree(channels_info[i]);
+ }
+ }
+ kfree(channels_info);
+
+channels_info_array_err:
+sensors_type_err:
+ for (i = 0 ; i < HWMON_NR_SENSOR_TYPES ; i++)
+ kfree(sensors_by_type[i]);
+
+ return rc;
+}
+
+static int hl_read(struct device *dev, enum hwmon_sensor_types type,
+ u32 attr, int channel, long *val)
+{
+ struct hl_device *hdev = dev_get_drvdata(dev);
+ bool use_cpucp_enum;
+ u32 cpucp_attr;
+ int rc;
+
+ if (!hl_device_operational(hdev, NULL))
+ return -ENODEV;
+
+ use_cpucp_enum = (hdev->asic_prop.fw_app_cpu_boot_dev_sts0 &
+ CPU_BOOT_DEV_STS0_MAP_HWMON_EN) ? true : false;
+
+ switch (type) {
+ case hwmon_temp:
+ switch (attr) {
+ case hwmon_temp_input:
+ cpucp_attr = cpucp_temp_input;
+ break;
+ case hwmon_temp_max:
+ cpucp_attr = cpucp_temp_max;
+ break;
+ case hwmon_temp_crit:
+ cpucp_attr = cpucp_temp_crit;
+ break;
+ case hwmon_temp_max_hyst:
+ cpucp_attr = cpucp_temp_max_hyst;
+ break;
+ case hwmon_temp_crit_hyst:
+ cpucp_attr = cpucp_temp_crit_hyst;
+ break;
+ case hwmon_temp_offset:
+ cpucp_attr = cpucp_temp_offset;
+ break;
+ case hwmon_temp_highest:
+ cpucp_attr = cpucp_temp_highest;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ if (use_cpucp_enum)
+ rc = hl_get_temperature(hdev, channel, cpucp_attr, val);
+ else
+ rc = hl_get_temperature(hdev, channel, fixup_attr_legacy_fw(attr), val);
+ break;
+ case hwmon_in:
+ switch (attr) {
+ case hwmon_in_input:
+ cpucp_attr = cpucp_in_input;
+ break;
+ case hwmon_in_min:
+ cpucp_attr = cpucp_in_min;
+ break;
+ case hwmon_in_max:
+ cpucp_attr = cpucp_in_max;
+ break;
+ case hwmon_in_highest:
+ cpucp_attr = cpucp_in_highest;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ if (use_cpucp_enum)
+ rc = hl_get_voltage(hdev, channel, cpucp_attr, val);
+ else
+ rc = hl_get_voltage(hdev, channel, fixup_attr_legacy_fw(attr), val);
+ break;
+ case hwmon_curr:
+ switch (attr) {
+ case hwmon_curr_input:
+ cpucp_attr = cpucp_curr_input;
+ break;
+ case hwmon_curr_min:
+ cpucp_attr = cpucp_curr_min;
+ break;
+ case hwmon_curr_max:
+ cpucp_attr = cpucp_curr_max;
+ break;
+ case hwmon_curr_highest:
+ cpucp_attr = cpucp_curr_highest;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ if (use_cpucp_enum)
+ rc = hl_get_current(hdev, channel, cpucp_attr, val);
+ else
+ rc = hl_get_current(hdev, channel, fixup_attr_legacy_fw(attr), val);
+ break;
+ case hwmon_fan:
+ switch (attr) {
+ case hwmon_fan_input:
+ cpucp_attr = cpucp_fan_input;
+ break;
+ case hwmon_fan_min:
+ cpucp_attr = cpucp_fan_min;
+ break;
+ case hwmon_fan_max:
+ cpucp_attr = cpucp_fan_max;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ if (use_cpucp_enum)
+ rc = hl_get_fan_speed(hdev, channel, cpucp_attr, val);
+ else
+ rc = hl_get_fan_speed(hdev, channel, fixup_attr_legacy_fw(attr), val);
+ break;
+ case hwmon_pwm:
+ switch (attr) {
+ case hwmon_pwm_input:
+ cpucp_attr = cpucp_pwm_input;
+ break;
+ case hwmon_pwm_enable:
+ cpucp_attr = cpucp_pwm_enable;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ if (use_cpucp_enum)
+ rc = hl_get_pwm_info(hdev, channel, cpucp_attr, val);
+ else
+ /* no need for fixup as pwm was aligned from day 1 */
+ rc = hl_get_pwm_info(hdev, channel, attr, val);
+ break;
+ case hwmon_power:
+ switch (attr) {
+ case hwmon_power_input:
+ cpucp_attr = CPUCP_POWER_INPUT;
+ break;
+ case hwmon_power_input_highest:
+ cpucp_attr = CPUCP_POWER_INPUT_HIGHEST;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ if (use_cpucp_enum)
+ rc = hl_get_power(hdev, channel, cpucp_attr, val);
+ else
+ rc = hl_get_power(hdev, channel, fixup_attr_legacy_fw(attr), val);
+ break;
+ default:
+ return -EINVAL;
+ }
+ return rc;
+}
+
+static int hl_write(struct device *dev, enum hwmon_sensor_types type,
+ u32 attr, int channel, long val)
+{
+ struct hl_device *hdev = dev_get_drvdata(dev);
+ u32 cpucp_attr;
+ bool use_cpucp_enum = (hdev->asic_prop.fw_app_cpu_boot_dev_sts0 &
+ CPU_BOOT_DEV_STS0_MAP_HWMON_EN) ? true : false;
+
+ if (!hl_device_operational(hdev, NULL))
+ return -ENODEV;
+
+ switch (type) {
+ case hwmon_temp:
+ switch (attr) {
+ case hwmon_temp_offset:
+ cpucp_attr = cpucp_temp_offset;
+ break;
+ case hwmon_temp_reset_history:
+ cpucp_attr = cpucp_temp_reset_history;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ if (use_cpucp_enum)
+ hl_set_temperature(hdev, channel, cpucp_attr, val);
+ else
+ hl_set_temperature(hdev, channel, fixup_attr_legacy_fw(attr), val);
+ break;
+ case hwmon_pwm:
+ switch (attr) {
+ case hwmon_pwm_input:
+ cpucp_attr = cpucp_pwm_input;
+ break;
+ case hwmon_pwm_enable:
+ cpucp_attr = cpucp_pwm_enable;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ if (use_cpucp_enum)
+ hl_set_pwm_info(hdev, channel, cpucp_attr, val);
+ else
+ /* no need for fixup as pwm was aligned from day 1 */
+ hl_set_pwm_info(hdev, channel, attr, val);
+ break;
+ case hwmon_in:
+ switch (attr) {
+ case hwmon_in_reset_history:
+ cpucp_attr = cpucp_in_reset_history;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ if (use_cpucp_enum)
+ hl_set_voltage(hdev, channel, cpucp_attr, val);
+ else
+ hl_set_voltage(hdev, channel, fixup_attr_legacy_fw(attr), val);
+ break;
+ case hwmon_curr:
+ switch (attr) {
+ case hwmon_curr_reset_history:
+ cpucp_attr = cpucp_curr_reset_history;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ if (use_cpucp_enum)
+ hl_set_current(hdev, channel, cpucp_attr, val);
+ else
+ hl_set_current(hdev, channel, fixup_attr_legacy_fw(attr), val);
+ break;
+ case hwmon_power:
+ switch (attr) {
+ case hwmon_power_reset_history:
+ cpucp_attr = CPUCP_POWER_RESET_INPUT_HISTORY;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ if (use_cpucp_enum)
+ hl_set_power(hdev, channel, cpucp_attr, val);
+ else
+ hl_set_power(hdev, channel, fixup_attr_legacy_fw(attr), val);
+ break;
+ default:
+ return -EINVAL;
+ }
+ return 0;
+}
+
+static umode_t hl_is_visible(const void *data, enum hwmon_sensor_types type,
+ u32 attr, int channel)
+{
+ switch (type) {
+ case hwmon_temp:
+ switch (attr) {
+ case hwmon_temp_input:
+ case hwmon_temp_max:
+ 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;
+ case hwmon_temp_reset_history:
+ return 0200;
+ }
+ break;
+ case hwmon_in:
+ switch (attr) {
+ case hwmon_in_input:
+ case hwmon_in_min:
+ case hwmon_in_max:
+ case hwmon_in_highest:
+ return 0444;
+ case hwmon_in_reset_history:
+ return 0200;
+ }
+ break;
+ case hwmon_curr:
+ switch (attr) {
+ case hwmon_curr_input:
+ case hwmon_curr_min:
+ case hwmon_curr_max:
+ case hwmon_curr_highest:
+ return 0444;
+ case hwmon_curr_reset_history:
+ return 0200;
+ }
+ break;
+ case hwmon_fan:
+ switch (attr) {
+ case hwmon_fan_input:
+ case hwmon_fan_min:
+ case hwmon_fan_max:
+ return 0444;
+ }
+ break;
+ case hwmon_pwm:
+ switch (attr) {
+ case hwmon_pwm_input:
+ case hwmon_pwm_enable:
+ return 0644;
+ }
+ break;
+ case hwmon_power:
+ switch (attr) {
+ case hwmon_power_input:
+ case hwmon_power_input_highest:
+ return 0444;
+ case hwmon_power_reset_history:
+ return 0200;
+ }
+ break;
+ default:
+ break;
+ }
+ return 0;
+}
+
+static const struct hwmon_ops hl_hwmon_ops = {
+ .is_visible = hl_is_visible,
+ .read = hl_read,
+ .write = hl_write
+};
+
+int hl_get_temperature(struct hl_device *hdev,
+ int sensor_index, u32 attr, long *value)
+{
+ struct cpucp_packet pkt;
+ u64 result;
+ int rc;
+
+ memset(&pkt, 0, sizeof(pkt));
+
+ pkt.ctl = cpu_to_le32(CPUCP_PACKET_TEMPERATURE_GET <<
+ CPUCP_PKT_CTL_OPCODE_SHIFT);
+ pkt.sensor_index = __cpu_to_le16(sensor_index);
+ pkt.type = __cpu_to_le16(attr);
+
+ dev_dbg(hdev->dev, "get temp, ctl 0x%x, sensor %d, type %d\n",
+ pkt.ctl, pkt.sensor_index, pkt.type);
+
+ rc = hdev->asic_funcs->send_cpu_message(hdev, (u32 *) &pkt, sizeof(pkt),
+ 0, &result);
+
+ *value = (long) result;
+
+ if (rc) {
+ dev_err(hdev->dev,
+ "Failed to get temperature from sensor %d, error %d\n",
+ sensor_index, rc);
+ *value = 0;
+ }
+
+ return rc;
+}
+
+int hl_set_temperature(struct hl_device *hdev,
+ int sensor_index, u32 attr, long value)
+{
+ struct cpucp_packet pkt;
+ int rc;
+
+ memset(&pkt, 0, sizeof(pkt));
+
+ pkt.ctl = cpu_to_le32(CPUCP_PACKET_TEMPERATURE_SET <<
+ CPUCP_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),
+ 0, NULL);
+
+ if (rc)
+ dev_err(hdev->dev,
+ "Failed to set temperature of sensor %d, error %d\n",
+ sensor_index, rc);
+
+ return rc;
+}
+
+int hl_get_voltage(struct hl_device *hdev,
+ int sensor_index, u32 attr, long *value)
+{
+ struct cpucp_packet pkt;
+ u64 result;
+ int rc;
+
+ memset(&pkt, 0, sizeof(pkt));
+
+ pkt.ctl = cpu_to_le32(CPUCP_PACKET_VOLTAGE_GET <<
+ CPUCP_PKT_CTL_OPCODE_SHIFT);
+ pkt.sensor_index = __cpu_to_le16(sensor_index);
+ pkt.type = __cpu_to_le16(attr);
+
+ rc = hdev->asic_funcs->send_cpu_message(hdev, (u32 *) &pkt, sizeof(pkt),
+ 0, &result);
+
+ *value = (long) result;
+
+ if (rc) {
+ dev_err(hdev->dev,
+ "Failed to get voltage from sensor %d, error %d\n",
+ sensor_index, rc);
+ *value = 0;
+ }
+
+ return rc;
+}
+
+int hl_get_current(struct hl_device *hdev,
+ int sensor_index, u32 attr, long *value)
+{
+ struct cpucp_packet pkt;
+ u64 result;
+ int rc;
+
+ memset(&pkt, 0, sizeof(pkt));
+
+ pkt.ctl = cpu_to_le32(CPUCP_PACKET_CURRENT_GET <<
+ CPUCP_PKT_CTL_OPCODE_SHIFT);
+ pkt.sensor_index = __cpu_to_le16(sensor_index);
+ pkt.type = __cpu_to_le16(attr);
+
+ rc = hdev->asic_funcs->send_cpu_message(hdev, (u32 *) &pkt, sizeof(pkt),
+ 0, &result);
+
+ *value = (long) result;
+
+ if (rc) {
+ dev_err(hdev->dev,
+ "Failed to get current from sensor %d, error %d\n",
+ sensor_index, rc);
+ *value = 0;
+ }
+
+ return rc;
+}
+
+int hl_get_fan_speed(struct hl_device *hdev,
+ int sensor_index, u32 attr, long *value)
+{
+ struct cpucp_packet pkt;
+ u64 result;
+ int rc;
+
+ memset(&pkt, 0, sizeof(pkt));
+
+ pkt.ctl = cpu_to_le32(CPUCP_PACKET_FAN_SPEED_GET <<
+ CPUCP_PKT_CTL_OPCODE_SHIFT);
+ pkt.sensor_index = __cpu_to_le16(sensor_index);
+ pkt.type = __cpu_to_le16(attr);
+
+ rc = hdev->asic_funcs->send_cpu_message(hdev, (u32 *) &pkt, sizeof(pkt),
+ 0, &result);
+
+ *value = (long) result;
+
+ if (rc) {
+ dev_err(hdev->dev,
+ "Failed to get fan speed from sensor %d, error %d\n",
+ sensor_index, rc);
+ *value = 0;
+ }
+
+ return rc;
+}
+
+int hl_get_pwm_info(struct hl_device *hdev,
+ int sensor_index, u32 attr, long *value)
+{
+ struct cpucp_packet pkt;
+ u64 result;
+ int rc;
+
+ memset(&pkt, 0, sizeof(pkt));
+
+ pkt.ctl = cpu_to_le32(CPUCP_PACKET_PWM_GET <<
+ CPUCP_PKT_CTL_OPCODE_SHIFT);
+ pkt.sensor_index = __cpu_to_le16(sensor_index);
+ pkt.type = __cpu_to_le16(attr);
+
+ rc = hdev->asic_funcs->send_cpu_message(hdev, (u32 *) &pkt, sizeof(pkt),
+ 0, &result);
+
+ *value = (long) result;
+
+ if (rc) {
+ dev_err(hdev->dev,
+ "Failed to get pwm info from sensor %d, error %d\n",
+ sensor_index, rc);
+ *value = 0;
+ }
+
+ return rc;
+}
+
+void hl_set_pwm_info(struct hl_device *hdev, int sensor_index, u32 attr,
+ long value)
+{
+ struct cpucp_packet pkt;
+ int rc;
+
+ memset(&pkt, 0, sizeof(pkt));
+
+ pkt.ctl = cpu_to_le32(CPUCP_PACKET_PWM_SET <<
+ CPUCP_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),
+ 0, NULL);
+
+ if (rc)
+ dev_err(hdev->dev,
+ "Failed to set pwm info to sensor %d, error %d\n",
+ sensor_index, rc);
+}
+
+int hl_set_voltage(struct hl_device *hdev,
+ int sensor_index, u32 attr, long value)
+{
+ struct cpucp_packet pkt;
+ int rc;
+
+ memset(&pkt, 0, sizeof(pkt));
+
+ pkt.ctl = cpu_to_le32(CPUCP_PACKET_VOLTAGE_SET <<
+ CPUCP_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),
+ 0, NULL);
+
+ if (rc)
+ dev_err(hdev->dev,
+ "Failed to set voltage of sensor %d, error %d\n",
+ sensor_index, rc);
+
+ return rc;
+}
+
+int hl_set_current(struct hl_device *hdev,
+ int sensor_index, u32 attr, long value)
+{
+ struct cpucp_packet pkt;
+ int rc;
+
+ memset(&pkt, 0, sizeof(pkt));
+
+ pkt.ctl = cpu_to_le32(CPUCP_PACKET_CURRENT_SET <<
+ CPUCP_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),
+ 0, NULL);
+
+ if (rc)
+ dev_err(hdev->dev,
+ "Failed to set current of sensor %d, error %d\n",
+ sensor_index, rc);
+
+ return rc;
+}
+
+int hl_set_power(struct hl_device *hdev,
+ int sensor_index, u32 attr, long value)
+{
+ struct cpucp_packet pkt;
+ struct asic_fixed_properties *prop = &hdev->asic_prop;
+ int rc;
+
+ memset(&pkt, 0, sizeof(pkt));
+
+ if (prop->use_get_power_for_reset_history)
+ pkt.ctl = cpu_to_le32(CPUCP_PACKET_POWER_GET <<
+ CPUCP_PKT_CTL_OPCODE_SHIFT);
+ else
+ pkt.ctl = cpu_to_le32(CPUCP_PACKET_POWER_SET <<
+ CPUCP_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),
+ 0, NULL);
+
+ if (rc)
+ dev_err(hdev->dev,
+ "Failed to set power of sensor %d, error %d\n",
+ sensor_index, rc);
+
+ return rc;
+}
+
+int hl_get_power(struct hl_device *hdev,
+ int sensor_index, u32 attr, long *value)
+{
+ struct cpucp_packet pkt;
+ u64 result;
+ int rc;
+
+ memset(&pkt, 0, sizeof(pkt));
+
+ pkt.ctl = cpu_to_le32(CPUCP_PACKET_POWER_GET <<
+ CPUCP_PKT_CTL_OPCODE_SHIFT);
+ pkt.sensor_index = __cpu_to_le16(sensor_index);
+ pkt.type = __cpu_to_le16(attr);
+
+ rc = hdev->asic_funcs->send_cpu_message(hdev, (u32 *) &pkt, sizeof(pkt),
+ 0, &result);
+
+ *value = (long) result;
+
+ if (rc) {
+ dev_err(hdev->dev,
+ "Failed to get power of sensor %d, error %d\n",
+ sensor_index, rc);
+ *value = 0;
+ }
+
+ return rc;
+}
+
+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->cpu_queues_enable))
+ return 0;
+
+ if (hdev->hl_chip_info->info) {
+ hdev->hl_chip_info->ops = &hl_hwmon_ops;
+
+ hdev->hwmon_dev = hwmon_device_register_with_info(dev,
+ prop->cpucp_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,
+ "Unable to register hwmon device: %d\n", rc);
+ return rc;
+ }
+
+ dev_info(hdev->dev, "%s: add sensors information\n",
+ dev_name(hdev->hwmon_dev));
+
+ hdev->hwmon_initialized = true;
+ } else {
+ dev_info(hdev->dev, "no available sensors\n");
+ }
+
+ return 0;
+}
+
+void hl_hwmon_fini(struct hl_device *hdev)
+{
+ if (!hdev->hwmon_initialized)
+ return;
+
+ hwmon_device_unregister(hdev->hwmon_dev);
+}
+
+void hl_hwmon_release_resources(struct hl_device *hdev)
+{
+ const struct hwmon_channel_info **channel_info_arr;
+ int i = 0;
+
+ if (!hdev->hl_chip_info->info)
+ return;
+
+ channel_info_arr = hdev->hl_chip_info->info;
+
+ while (channel_info_arr[i]) {
+ kfree(channel_info_arr[i]->config);
+ kfree(channel_info_arr[i]);
+ i++;
+ }
+
+ kfree(channel_info_arr);
+
+ hdev->hl_chip_info->info = NULL;
+}