| // 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 SENSORS_PKT_TIMEOUT 1000000 /* 1s */ |
| #define HWMON_NR_SENSOR_TYPES (hwmon_pwm + 1) |
| |
| int hl_build_hwmon_channel_info(struct hl_device *hdev, |
| struct armcp_sensor *sensors_arr) |
| { |
| u32 counts[HWMON_NR_SENSOR_TYPES] = {0}; |
| u32 *sensors_by_type[HWMON_NR_SENSOR_TYPES] = {NULL}; |
| u32 sensors_by_type_next_index[HWMON_NR_SENSOR_TYPES] = {0}; |
| struct hwmon_channel_info **channels_info; |
| u32 num_sensors_for_type, num_active_sensor_types = 0, |
| arr_size = 0, *curr_arr; |
| enum hwmon_sensor_types type; |
| int rc, i, j; |
| |
| for (i = 0 ; i < ARMCP_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; |
| 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]; |
| curr_arr[sensors_by_type_next_index[type]++] = |
| le32_to_cpu(sensors_arr[i].flags); |
| } |
| |
| channels_info = kcalloc(num_active_sensor_types + 1, |
| sizeof(*channels_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); |
| int rc; |
| |
| if (hl_device_disabled_or_in_reset(hdev)) |
| return -ENODEV; |
| |
| switch (type) { |
| case hwmon_temp: |
| switch (attr) { |
| case hwmon_temp_input: |
| case hwmon_temp_max: |
| case hwmon_temp_crit: |
| case hwmon_temp_max_hyst: |
| case hwmon_temp_crit_hyst: |
| case hwmon_temp_offset: |
| case hwmon_temp_highest: |
| break; |
| default: |
| return -EINVAL; |
| } |
| |
| rc = hl_get_temperature(hdev, channel, attr, val); |
| break; |
| case hwmon_in: |
| switch (attr) { |
| case hwmon_in_input: |
| case hwmon_in_min: |
| case hwmon_in_max: |
| case hwmon_in_highest: |
| break; |
| default: |
| return -EINVAL; |
| } |
| |
| rc = hl_get_voltage(hdev, channel, attr, val); |
| break; |
| case hwmon_curr: |
| switch (attr) { |
| case hwmon_curr_input: |
| case hwmon_curr_min: |
| case hwmon_curr_max: |
| case hwmon_curr_highest: |
| break; |
| default: |
| return -EINVAL; |
| } |
| |
| rc = hl_get_current(hdev, channel, attr, val); |
| break; |
| case hwmon_fan: |
| switch (attr) { |
| case hwmon_fan_input: |
| case hwmon_fan_min: |
| case hwmon_fan_max: |
| break; |
| default: |
| return -EINVAL; |
| } |
| rc = hl_get_fan_speed(hdev, channel, attr, val); |
| break; |
| case hwmon_pwm: |
| switch (attr) { |
| case hwmon_pwm_input: |
| case hwmon_pwm_enable: |
| break; |
| default: |
| return -EINVAL; |
| } |
| rc = hl_get_pwm_info(hdev, channel, 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); |
| |
| if (hl_device_disabled_or_in_reset(hdev)) |
| return -ENODEV; |
| |
| switch (type) { |
| case hwmon_temp: |
| switch (attr) { |
| case hwmon_temp_offset: |
| case hwmon_temp_reset_history: |
| break; |
| default: |
| return -EINVAL; |
| } |
| hl_set_temperature(hdev, channel, attr, val); |
| break; |
| case hwmon_pwm: |
| switch (attr) { |
| case hwmon_pwm_input: |
| case hwmon_pwm_enable: |
| break; |
| default: |
| return -EINVAL; |
| } |
| hl_set_pwm_info(hdev, channel, attr, val); |
| break; |
| case hwmon_in: |
| switch (attr) { |
| case hwmon_in_reset_history: |
| break; |
| default: |
| return -EINVAL; |
| } |
| hl_set_voltage(hdev, channel, attr, val); |
| break; |
| case hwmon_curr: |
| switch (attr) { |
| case hwmon_curr_reset_history: |
| break; |
| default: |
| return -EINVAL; |
| } |
| hl_set_current(hdev, channel, 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; |
| 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 armcp_packet pkt; |
| int rc; |
| |
| memset(&pkt, 0, sizeof(pkt)); |
| |
| pkt.ctl = cpu_to_le32(ARMCP_PACKET_TEMPERATURE_GET << |
| ARMCP_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), |
| SENSORS_PKT_TIMEOUT, value); |
| |
| 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 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; |
| } |
| |
| int hl_get_voltage(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_VOLTAGE_GET << |
| ARMCP_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), |
| SENSORS_PKT_TIMEOUT, value); |
| |
| 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 armcp_packet pkt; |
| int rc; |
| |
| memset(&pkt, 0, sizeof(pkt)); |
| |
| pkt.ctl = cpu_to_le32(ARMCP_PACKET_CURRENT_GET << |
| ARMCP_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), |
| SENSORS_PKT_TIMEOUT, value); |
| |
| 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 armcp_packet pkt; |
| int rc; |
| |
| memset(&pkt, 0, sizeof(pkt)); |
| |
| pkt.ctl = cpu_to_le32(ARMCP_PACKET_FAN_SPEED_GET << |
| ARMCP_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), |
| SENSORS_PKT_TIMEOUT, value); |
| |
| 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 armcp_packet pkt; |
| int rc; |
| |
| memset(&pkt, 0, sizeof(pkt)); |
| |
| pkt.ctl = cpu_to_le32(ARMCP_PACKET_PWM_GET << |
| ARMCP_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), |
| SENSORS_PKT_TIMEOUT, value); |
| |
| 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 armcp_packet pkt; |
| int rc; |
| |
| memset(&pkt, 0, sizeof(pkt)); |
| |
| pkt.ctl = cpu_to_le32(ARMCP_PACKET_PWM_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 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 armcp_packet pkt; |
| int rc; |
| |
| memset(&pkt, 0, sizeof(pkt)); |
| |
| pkt.ctl = cpu_to_le32(ARMCP_PACKET_VOLTAGE_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 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 armcp_packet pkt; |
| int rc; |
| |
| memset(&pkt, 0, sizeof(pkt)); |
| |
| pkt.ctl = cpu_to_le32(ARMCP_PACKET_CURRENT_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 current of sensor %d, error %d\n", |
| sensor_index, rc); |
| |
| 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->fw_loading)) |
| 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->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, |
| "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); |
| } |