diff options
Diffstat (limited to 'drivers/misc/habanalabs/common/sysfs.c')
| -rw-r--r-- | drivers/misc/habanalabs/common/sysfs.c | 480 |
1 files changed, 0 insertions, 480 deletions
diff --git a/drivers/misc/habanalabs/common/sysfs.c b/drivers/misc/habanalabs/common/sysfs.c deleted file mode 100644 index db72df282ef8..000000000000 --- a/drivers/misc/habanalabs/common/sysfs.c +++ /dev/null @@ -1,480 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 - -/* - * Copyright 2016-2019 HabanaLabs, Ltd. - * All Rights Reserved. - */ - -#include "habanalabs.h" - -#include <linux/pci.h> - -long hl_get_frequency(struct hl_device *hdev, u32 pll_index, - bool curr) -{ - struct cpucp_packet pkt; - u32 used_pll_idx; - u64 result; - int rc; - - rc = get_used_pll_index(hdev, pll_index, &used_pll_idx); - if (rc) - return rc; - - memset(&pkt, 0, sizeof(pkt)); - - if (curr) - pkt.ctl = cpu_to_le32(CPUCP_PACKET_FREQUENCY_CURR_GET << - CPUCP_PKT_CTL_OPCODE_SHIFT); - else - pkt.ctl = cpu_to_le32(CPUCP_PACKET_FREQUENCY_GET << - CPUCP_PKT_CTL_OPCODE_SHIFT); - pkt.pll_index = cpu_to_le32((u32)used_pll_idx); - - rc = hdev->asic_funcs->send_cpu_message(hdev, (u32 *) &pkt, sizeof(pkt), - 0, &result); - - if (rc) { - dev_err(hdev->dev, - "Failed to get frequency of PLL %d, error %d\n", - used_pll_idx, rc); - return rc; - } - - return (long) result; -} - -void hl_set_frequency(struct hl_device *hdev, u32 pll_index, - u64 freq) -{ - struct cpucp_packet pkt; - u32 used_pll_idx; - int rc; - - rc = get_used_pll_index(hdev, pll_index, &used_pll_idx); - if (rc) - return; - - memset(&pkt, 0, sizeof(pkt)); - - pkt.ctl = cpu_to_le32(CPUCP_PACKET_FREQUENCY_SET << - CPUCP_PKT_CTL_OPCODE_SHIFT); - pkt.pll_index = cpu_to_le32((u32)used_pll_idx); - pkt.value = cpu_to_le64(freq); - - rc = hdev->asic_funcs->send_cpu_message(hdev, (u32 *) &pkt, sizeof(pkt), - 0, NULL); - - if (rc) - dev_err(hdev->dev, - "Failed to set frequency to PLL %d, error %d\n", - used_pll_idx, rc); -} - -u64 hl_get_max_power(struct hl_device *hdev) -{ - struct cpucp_packet pkt; - u64 result; - int rc; - - memset(&pkt, 0, sizeof(pkt)); - - pkt.ctl = cpu_to_le32(CPUCP_PACKET_MAX_POWER_GET << - CPUCP_PKT_CTL_OPCODE_SHIFT); - - rc = hdev->asic_funcs->send_cpu_message(hdev, (u32 *) &pkt, sizeof(pkt), - 0, &result); - - if (rc) { - dev_err(hdev->dev, "Failed to get max power, error %d\n", rc); - return (u64) rc; - } - - return result; -} - -void hl_set_max_power(struct hl_device *hdev) -{ - struct cpucp_packet pkt; - int rc; - - memset(&pkt, 0, sizeof(pkt)); - - pkt.ctl = cpu_to_le32(CPUCP_PACKET_MAX_POWER_SET << - CPUCP_PKT_CTL_OPCODE_SHIFT); - pkt.value = cpu_to_le64(hdev->max_power); - - rc = hdev->asic_funcs->send_cpu_message(hdev, (u32 *) &pkt, sizeof(pkt), - 0, NULL); - - if (rc) - dev_err(hdev->dev, "Failed to set max power, error %d\n", rc); -} - -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", - 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 infineon_ver_show(struct device *dev, - struct device_attribute *attr, char *buf) -{ - struct hl_device *hdev = dev_get_drvdata(dev); - - return sprintf(buf, "0x%04x\n", - hdev->asic_prop.cpucp_info.infineon_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 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->allow_external_soft_reset) { - dev_err(hdev->dev, "Device does not support soft-reset\n"); - goto out; - } - - dev_warn(hdev->dev, "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_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; - 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; - - if (atomic_read(&hdev->in_reset)) - str = "In reset"; - else if (hdev->disabled) - str = "Malfunction"; - else if (hdev->needs_reset) - str = "Needs Reset"; - else - str = "Operational"; - - 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->soft_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->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_get_max_power(hdev); - - 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_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 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_RO(infineon_ver); -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 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_infineon_ver.attr, - &dev_attr_max_power.attr, - &dev_attr_pci_addr.attr, - &dev_attr_preboot_btl_ver.attr, - &dev_attr_soft_reset.attr, - &dev_attr_soft_reset_cnt.attr, - &dev_attr_status.attr, - &dev_attr_thermal_ver.attr, - &dev_attr_uboot_ver.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 const struct attribute_group *hl_dev_attr_groups[] = { - &hl_dev_attr_group, - &hl_dev_clks_attr_group, - NULL, -}; - -int hl_sysfs_init(struct hl_device *hdev) -{ - int rc; - - if (hdev->asic_type == ASIC_GOYA) - hdev->pm_mng_profile = PM_AUTO; - else - hdev->pm_mng_profile = PM_MANUAL; - - hdev->max_power = hdev->asic_prop.max_power_default; - - hdev->asic_funcs->add_device_attr(hdev, &hl_dev_clks_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; - } - - return 0; -} - -void hl_sysfs_fini(struct hl_device *hdev) -{ - device_remove_groups(hdev->dev, hl_dev_attr_groups); -} |
