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- // SPDX-License-Identifier: GPL-2.0
- /*
- * Copyright 2016-2022 HabanaLabs, Ltd.
- * All Rights Reserved.
- */
- #include "habanalabs.h"
- #include <linux/pci.h>
- static ssize_t clk_max_freq_mhz_show(struct device *dev, struct device_attribute *attr, char *buf)
- {
- struct hl_device *hdev = dev_get_drvdata(dev);
- long value;
- if (!hl_device_operational(hdev, NULL))
- return -ENODEV;
- value = hl_fw_get_frequency(hdev, hdev->asic_prop.clk_pll_index, false);
- if (value < 0)
- return value;
- hdev->asic_prop.max_freq_value = value;
- return sprintf(buf, "%lu\n", (value / 1000 / 1000));
- }
- static ssize_t clk_max_freq_mhz_store(struct device *dev, struct device_attribute *attr,
- const char *buf, size_t count)
- {
- struct hl_device *hdev = dev_get_drvdata(dev);
- int rc;
- u64 value;
- if (!hl_device_operational(hdev, NULL)) {
- count = -ENODEV;
- goto fail;
- }
- rc = kstrtoull(buf, 0, &value);
- if (rc) {
- count = -EINVAL;
- goto fail;
- }
- hdev->asic_prop.max_freq_value = value * 1000 * 1000;
- hl_fw_set_frequency(hdev, hdev->asic_prop.clk_pll_index, hdev->asic_prop.max_freq_value);
- fail:
- return count;
- }
- static ssize_t clk_cur_freq_mhz_show(struct device *dev, struct device_attribute *attr, char *buf)
- {
- struct hl_device *hdev = dev_get_drvdata(dev);
- long value;
- if (!hl_device_operational(hdev, NULL))
- return -ENODEV;
- value = hl_fw_get_frequency(hdev, hdev->asic_prop.clk_pll_index, true);
- if (value < 0)
- return value;
- return sprintf(buf, "%lu\n", (value / 1000 / 1000));
- }
- static DEVICE_ATTR_RW(clk_max_freq_mhz);
- static DEVICE_ATTR_RO(clk_cur_freq_mhz);
- static struct attribute *hl_dev_clk_attrs[] = {
- &dev_attr_clk_max_freq_mhz.attr,
- &dev_attr_clk_cur_freq_mhz.attr,
- NULL,
- };
- static ssize_t vrm_ver_show(struct device *dev, struct device_attribute *attr, char *buf)
- {
- struct hl_device *hdev = dev_get_drvdata(dev);
- struct cpucp_info *cpucp_info;
- cpucp_info = &hdev->asic_prop.cpucp_info;
- if (cpucp_info->infineon_second_stage_version)
- return sprintf(buf, "%#04x %#04x\n", le32_to_cpu(cpucp_info->infineon_version),
- le32_to_cpu(cpucp_info->infineon_second_stage_version));
- else
- return sprintf(buf, "%#04x\n", le32_to_cpu(cpucp_info->infineon_version));
- }
- static DEVICE_ATTR_RO(vrm_ver);
- static struct attribute *hl_dev_vrm_attrs[] = {
- &dev_attr_vrm_ver.attr,
- NULL,
- };
- static ssize_t uboot_ver_show(struct device *dev, struct device_attribute *attr,
- char *buf)
- {
- struct hl_device *hdev = dev_get_drvdata(dev);
- return sprintf(buf, "%s\n", hdev->asic_prop.uboot_ver);
- }
- static ssize_t armcp_kernel_ver_show(struct device *dev,
- struct device_attribute *attr, char *buf)
- {
- struct hl_device *hdev = dev_get_drvdata(dev);
- return sprintf(buf, "%s", hdev->asic_prop.cpucp_info.kernel_version);
- }
- static ssize_t armcp_ver_show(struct device *dev, struct device_attribute *attr,
- char *buf)
- {
- struct hl_device *hdev = dev_get_drvdata(dev);
- return sprintf(buf, "%s\n", hdev->asic_prop.cpucp_info.cpucp_version);
- }
- static ssize_t cpld_ver_show(struct device *dev, struct device_attribute *attr,
- char *buf)
- {
- struct hl_device *hdev = dev_get_drvdata(dev);
- return sprintf(buf, "0x%08x\n",
- le32_to_cpu(hdev->asic_prop.cpucp_info.cpld_version));
- }
- static ssize_t cpucp_kernel_ver_show(struct device *dev,
- struct device_attribute *attr, char *buf)
- {
- struct hl_device *hdev = dev_get_drvdata(dev);
- return sprintf(buf, "%s", hdev->asic_prop.cpucp_info.kernel_version);
- }
- static ssize_t cpucp_ver_show(struct device *dev, struct device_attribute *attr,
- char *buf)
- {
- struct hl_device *hdev = dev_get_drvdata(dev);
- return sprintf(buf, "%s\n", hdev->asic_prop.cpucp_info.cpucp_version);
- }
- static ssize_t fuse_ver_show(struct device *dev, struct device_attribute *attr,
- char *buf)
- {
- struct hl_device *hdev = dev_get_drvdata(dev);
- return sprintf(buf, "%s\n", hdev->asic_prop.cpucp_info.fuse_version);
- }
- static ssize_t thermal_ver_show(struct device *dev,
- struct device_attribute *attr, char *buf)
- {
- struct hl_device *hdev = dev_get_drvdata(dev);
- return sprintf(buf, "%s", hdev->asic_prop.cpucp_info.thermal_version);
- }
- static ssize_t fw_os_ver_show(struct device *dev,
- struct device_attribute *attr, char *buf)
- {
- struct hl_device *hdev = dev_get_drvdata(dev);
- return sprintf(buf, "%s", hdev->asic_prop.cpucp_info.fw_os_version);
- }
- static ssize_t preboot_btl_ver_show(struct device *dev,
- struct device_attribute *attr, char *buf)
- {
- struct hl_device *hdev = dev_get_drvdata(dev);
- return sprintf(buf, "%s\n", hdev->asic_prop.preboot_ver);
- }
- static ssize_t soft_reset_store(struct device *dev,
- struct device_attribute *attr, const char *buf,
- size_t count)
- {
- struct hl_device *hdev = dev_get_drvdata(dev);
- long value;
- int rc;
- rc = kstrtoul(buf, 0, &value);
- if (rc) {
- count = -EINVAL;
- goto out;
- }
- if (!hdev->asic_prop.allow_inference_soft_reset) {
- dev_err(hdev->dev, "Device does not support inference soft-reset\n");
- goto out;
- }
- dev_warn(hdev->dev, "Inference Soft-Reset requested through sysfs\n");
- hl_device_reset(hdev, 0);
- out:
- return count;
- }
- static ssize_t hard_reset_store(struct device *dev,
- struct device_attribute *attr,
- const char *buf, size_t count)
- {
- struct hl_device *hdev = dev_get_drvdata(dev);
- long value;
- int rc;
- rc = kstrtoul(buf, 0, &value);
- if (rc) {
- count = -EINVAL;
- goto out;
- }
- dev_warn(hdev->dev, "Hard-Reset requested through sysfs\n");
- hl_device_reset(hdev, HL_DRV_RESET_HARD);
- out:
- return count;
- }
- static ssize_t device_type_show(struct device *dev,
- struct device_attribute *attr, char *buf)
- {
- struct hl_device *hdev = dev_get_drvdata(dev);
- char *str;
- switch (hdev->asic_type) {
- case ASIC_GOYA:
- str = "GOYA";
- break;
- case ASIC_GAUDI:
- str = "GAUDI";
- break;
- case ASIC_GAUDI_SEC:
- str = "GAUDI SEC";
- break;
- case ASIC_GAUDI2:
- str = "GAUDI2";
- break;
- case ASIC_GAUDI2_SEC:
- str = "GAUDI2 SEC";
- break;
- default:
- dev_err(hdev->dev, "Unrecognized ASIC type %d\n",
- hdev->asic_type);
- return -EINVAL;
- }
- return sprintf(buf, "%s\n", str);
- }
- static ssize_t pci_addr_show(struct device *dev, struct device_attribute *attr,
- char *buf)
- {
- struct hl_device *hdev = dev_get_drvdata(dev);
- return sprintf(buf, "%04x:%02x:%02x.%x\n",
- pci_domain_nr(hdev->pdev->bus),
- hdev->pdev->bus->number,
- PCI_SLOT(hdev->pdev->devfn),
- PCI_FUNC(hdev->pdev->devfn));
- }
- static ssize_t status_show(struct device *dev, struct device_attribute *attr,
- char *buf)
- {
- struct hl_device *hdev = dev_get_drvdata(dev);
- char str[HL_STR_MAX];
- strscpy(str, hdev->status[hl_device_status(hdev)], HL_STR_MAX);
- /* use uppercase for backward compatibility */
- str[0] = 'A' + (str[0] - 'a');
- return sprintf(buf, "%s\n", str);
- }
- static ssize_t soft_reset_cnt_show(struct device *dev,
- struct device_attribute *attr, char *buf)
- {
- struct hl_device *hdev = dev_get_drvdata(dev);
- return sprintf(buf, "%d\n", hdev->reset_info.compute_reset_cnt);
- }
- static ssize_t hard_reset_cnt_show(struct device *dev,
- struct device_attribute *attr, char *buf)
- {
- struct hl_device *hdev = dev_get_drvdata(dev);
- return sprintf(buf, "%d\n", hdev->reset_info.hard_reset_cnt);
- }
- static ssize_t max_power_show(struct device *dev, struct device_attribute *attr,
- char *buf)
- {
- struct hl_device *hdev = dev_get_drvdata(dev);
- long val;
- if (!hl_device_operational(hdev, NULL))
- return -ENODEV;
- val = hl_fw_get_max_power(hdev);
- if (val < 0)
- return val;
- return sprintf(buf, "%lu\n", val);
- }
- static ssize_t max_power_store(struct device *dev,
- struct device_attribute *attr, const char *buf, size_t count)
- {
- struct hl_device *hdev = dev_get_drvdata(dev);
- unsigned long value;
- int rc;
- if (!hl_device_operational(hdev, NULL)) {
- count = -ENODEV;
- goto out;
- }
- rc = kstrtoul(buf, 0, &value);
- if (rc) {
- count = -EINVAL;
- goto out;
- }
- hdev->max_power = value;
- hl_fw_set_max_power(hdev);
- out:
- return count;
- }
- static ssize_t eeprom_read_handler(struct file *filp, struct kobject *kobj,
- struct bin_attribute *attr, char *buf, loff_t offset,
- size_t max_size)
- {
- struct device *dev = kobj_to_dev(kobj);
- struct hl_device *hdev = dev_get_drvdata(dev);
- char *data;
- int rc;
- if (!hl_device_operational(hdev, NULL))
- return -ENODEV;
- if (!max_size)
- return -EINVAL;
- data = kzalloc(max_size, GFP_KERNEL);
- if (!data)
- return -ENOMEM;
- rc = hdev->asic_funcs->get_eeprom_data(hdev, data, max_size);
- if (rc)
- goto out;
- memcpy(buf, data, max_size);
- out:
- kfree(data);
- return max_size;
- }
- static ssize_t security_enabled_show(struct device *dev,
- struct device_attribute *attr, char *buf)
- {
- struct hl_device *hdev = dev_get_drvdata(dev);
- return sprintf(buf, "%d\n", hdev->asic_prop.fw_security_enabled);
- }
- static DEVICE_ATTR_RO(armcp_kernel_ver);
- static DEVICE_ATTR_RO(armcp_ver);
- static DEVICE_ATTR_RO(cpld_ver);
- static DEVICE_ATTR_RO(cpucp_kernel_ver);
- static DEVICE_ATTR_RO(cpucp_ver);
- static DEVICE_ATTR_RO(device_type);
- static DEVICE_ATTR_RO(fuse_ver);
- static DEVICE_ATTR_WO(hard_reset);
- static DEVICE_ATTR_RO(hard_reset_cnt);
- static DEVICE_ATTR_RW(max_power);
- static DEVICE_ATTR_RO(pci_addr);
- static DEVICE_ATTR_RO(preboot_btl_ver);
- static DEVICE_ATTR_WO(soft_reset);
- static DEVICE_ATTR_RO(soft_reset_cnt);
- static DEVICE_ATTR_RO(status);
- static DEVICE_ATTR_RO(thermal_ver);
- static DEVICE_ATTR_RO(uboot_ver);
- static DEVICE_ATTR_RO(fw_os_ver);
- static DEVICE_ATTR_RO(security_enabled);
- static struct bin_attribute bin_attr_eeprom = {
- .attr = {.name = "eeprom", .mode = (0444)},
- .size = PAGE_SIZE,
- .read = eeprom_read_handler
- };
- static struct attribute *hl_dev_attrs[] = {
- &dev_attr_armcp_kernel_ver.attr,
- &dev_attr_armcp_ver.attr,
- &dev_attr_cpld_ver.attr,
- &dev_attr_cpucp_kernel_ver.attr,
- &dev_attr_cpucp_ver.attr,
- &dev_attr_device_type.attr,
- &dev_attr_fuse_ver.attr,
- &dev_attr_hard_reset.attr,
- &dev_attr_hard_reset_cnt.attr,
- &dev_attr_max_power.attr,
- &dev_attr_pci_addr.attr,
- &dev_attr_preboot_btl_ver.attr,
- &dev_attr_status.attr,
- &dev_attr_thermal_ver.attr,
- &dev_attr_uboot_ver.attr,
- &dev_attr_fw_os_ver.attr,
- &dev_attr_security_enabled.attr,
- NULL,
- };
- static struct bin_attribute *hl_dev_bin_attrs[] = {
- &bin_attr_eeprom,
- NULL
- };
- static struct attribute_group hl_dev_attr_group = {
- .attrs = hl_dev_attrs,
- .bin_attrs = hl_dev_bin_attrs,
- };
- static struct attribute_group hl_dev_clks_attr_group;
- static struct attribute_group hl_dev_vrm_attr_group;
- static const struct attribute_group *hl_dev_attr_groups[] = {
- &hl_dev_attr_group,
- &hl_dev_clks_attr_group,
- &hl_dev_vrm_attr_group,
- NULL,
- };
- static struct attribute *hl_dev_inference_attrs[] = {
- &dev_attr_soft_reset.attr,
- &dev_attr_soft_reset_cnt.attr,
- NULL,
- };
- static struct attribute_group hl_dev_inference_attr_group = {
- .attrs = hl_dev_inference_attrs,
- };
- static const struct attribute_group *hl_dev_inference_attr_groups[] = {
- &hl_dev_inference_attr_group,
- NULL,
- };
- void hl_sysfs_add_dev_clk_attr(struct hl_device *hdev, struct attribute_group *dev_clk_attr_grp)
- {
- dev_clk_attr_grp->attrs = hl_dev_clk_attrs;
- }
- void hl_sysfs_add_dev_vrm_attr(struct hl_device *hdev, struct attribute_group *dev_vrm_attr_grp)
- {
- dev_vrm_attr_grp->attrs = hl_dev_vrm_attrs;
- }
- int hl_sysfs_init(struct hl_device *hdev)
- {
- int rc;
- hdev->max_power = hdev->asic_prop.max_power_default;
- hdev->asic_funcs->add_device_attr(hdev, &hl_dev_clks_attr_group, &hl_dev_vrm_attr_group);
- rc = device_add_groups(hdev->dev, hl_dev_attr_groups);
- if (rc) {
- dev_err(hdev->dev,
- "Failed to add groups to device, error %d\n", rc);
- return rc;
- }
- if (!hdev->asic_prop.allow_inference_soft_reset)
- return 0;
- rc = device_add_groups(hdev->dev, hl_dev_inference_attr_groups);
- if (rc) {
- dev_err(hdev->dev,
- "Failed to add groups to device, error %d\n", rc);
- return rc;
- }
- return 0;
- }
- void hl_sysfs_fini(struct hl_device *hdev)
- {
- device_remove_groups(hdev->dev, hl_dev_attr_groups);
- if (!hdev->asic_prop.allow_inference_soft_reset)
- return;
- device_remove_groups(hdev->dev, hl_dev_inference_attr_groups);
- }
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