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-rw-r--r--arch/tile/kernel/sysfs.c266
1 files changed, 0 insertions, 266 deletions
diff --git a/arch/tile/kernel/sysfs.c b/arch/tile/kernel/sysfs.c
deleted file mode 100644
index b09456a3d77a..000000000000
--- a/arch/tile/kernel/sysfs.c
+++ /dev/null
@@ -1,266 +0,0 @@
-/*
- * Copyright 2011 Tilera Corporation. All Rights Reserved.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation, version 2.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
- * NON INFRINGEMENT. See the GNU General Public License for
- * more details.
- *
- * /sys entry support.
- */
-
-#include <linux/device.h>
-#include <linux/cpu.h>
-#include <linux/slab.h>
-#include <linux/smp.h>
-#include <linux/stat.h>
-#include <hv/hypervisor.h>
-
-/* Return a string queried from the hypervisor, truncated to page size. */
-static ssize_t get_hv_confstr(char *page, int query)
-{
- ssize_t n = hv_confstr(query, (unsigned long)page, PAGE_SIZE - 1);
- n = n < 0 ? 0 : min(n, (ssize_t)PAGE_SIZE - 1) - 1;
- if (n)
- page[n++] = '\n';
- page[n] = '\0';
- return n;
-}
-
-static ssize_t chip_width_show(struct device *dev,
- struct device_attribute *attr,
- char *page)
-{
- return sprintf(page, "%u\n", smp_width);
-}
-static DEVICE_ATTR_RO(chip_width);
-
-static ssize_t chip_height_show(struct device *dev,
- struct device_attribute *attr,
- char *page)
-{
- return sprintf(page, "%u\n", smp_height);
-}
-static DEVICE_ATTR_RO(chip_height);
-
-static ssize_t chip_serial_show(struct device *dev,
- struct device_attribute *attr,
- char *page)
-{
- return get_hv_confstr(page, HV_CONFSTR_CHIP_SERIAL_NUM);
-}
-static DEVICE_ATTR_RO(chip_serial);
-
-static ssize_t chip_revision_show(struct device *dev,
- struct device_attribute *attr,
- char *page)
-{
- return get_hv_confstr(page, HV_CONFSTR_CHIP_REV);
-}
-static DEVICE_ATTR_RO(chip_revision);
-
-
-static ssize_t type_show(struct device *dev,
- struct device_attribute *attr,
- char *page)
-{
- return sprintf(page, "tilera\n");
-}
-static DEVICE_ATTR_RO(type);
-
-#define HV_CONF_ATTR(name, conf) \
- static ssize_t name ## _show(struct device *dev, \
- struct device_attribute *attr, \
- char *page) \
- { \
- return get_hv_confstr(page, conf); \
- } \
- static DEVICE_ATTR(name, 0444, name ## _show, NULL);
-
-HV_CONF_ATTR(version, HV_CONFSTR_HV_SW_VER)
-HV_CONF_ATTR(config_version, HV_CONFSTR_HV_CONFIG_VER)
-
-HV_CONF_ATTR(board_part, HV_CONFSTR_BOARD_PART_NUM)
-HV_CONF_ATTR(board_serial, HV_CONFSTR_BOARD_SERIAL_NUM)
-HV_CONF_ATTR(board_revision, HV_CONFSTR_BOARD_REV)
-HV_CONF_ATTR(board_description, HV_CONFSTR_BOARD_DESC)
-HV_CONF_ATTR(mezz_part, HV_CONFSTR_MEZZ_PART_NUM)
-HV_CONF_ATTR(mezz_serial, HV_CONFSTR_MEZZ_SERIAL_NUM)
-HV_CONF_ATTR(mezz_revision, HV_CONFSTR_MEZZ_REV)
-HV_CONF_ATTR(mezz_description, HV_CONFSTR_MEZZ_DESC)
-HV_CONF_ATTR(cpumod_part, HV_CONFSTR_CPUMOD_PART_NUM)
-HV_CONF_ATTR(cpumod_serial, HV_CONFSTR_CPUMOD_SERIAL_NUM)
-HV_CONF_ATTR(cpumod_revision, HV_CONFSTR_CPUMOD_REV)
-HV_CONF_ATTR(cpumod_description,HV_CONFSTR_CPUMOD_DESC)
-HV_CONF_ATTR(switch_control, HV_CONFSTR_SWITCH_CONTROL)
-
-static struct attribute *board_attrs[] = {
- &dev_attr_board_part.attr,
- &dev_attr_board_serial.attr,
- &dev_attr_board_revision.attr,
- &dev_attr_board_description.attr,
- &dev_attr_mezz_part.attr,
- &dev_attr_mezz_serial.attr,
- &dev_attr_mezz_revision.attr,
- &dev_attr_mezz_description.attr,
- &dev_attr_cpumod_part.attr,
- &dev_attr_cpumod_serial.attr,
- &dev_attr_cpumod_revision.attr,
- &dev_attr_cpumod_description.attr,
- &dev_attr_switch_control.attr,
- NULL
-};
-
-static struct attribute_group board_attr_group = {
- .name = "board",
- .attrs = board_attrs,
-};
-
-
-static struct bin_attribute hvconfig_bin;
-
-static ssize_t
-hvconfig_bin_read(struct file *filp, struct kobject *kobj,
- struct bin_attribute *bin_attr,
- char *buf, loff_t off, size_t count)
-{
- static size_t size;
-
- /* Lazily learn the true size (minus the trailing NUL). */
- if (size == 0)
- size = hv_confstr(HV_CONFSTR_HV_CONFIG, 0, 0) - 1;
-
- /* Check and adjust input parameters. */
- if (off > size)
- return -EINVAL;
- if (count > size - off)
- count = size - off;
-
- if (count) {
- /* Get a copy of the hvc and copy out the relevant portion. */
- char *hvc;
-
- size = off + count;
- hvc = kmalloc(size, GFP_KERNEL);
- if (hvc == NULL)
- return -ENOMEM;
- hv_confstr(HV_CONFSTR_HV_CONFIG, (unsigned long)hvc, size);
- memcpy(buf, hvc + off, count);
- kfree(hvc);
- }
-
- return count;
-}
-
-static ssize_t hv_stats_show(struct device *dev,
- struct device_attribute *attr,
- char *page)
-{
- int cpu = dev->id;
- long lotar = HV_XY_TO_LOTAR(cpu_x(cpu), cpu_y(cpu));
-
- ssize_t n = hv_confstr(HV_CONFSTR_HV_STATS,
- (unsigned long)page, PAGE_SIZE - 1,
- lotar, 0);
- n = n < 0 ? 0 : min(n, (ssize_t)PAGE_SIZE - 1);
- page[n] = '\0';
- return n;
-}
-
-static ssize_t hv_stats_store(struct device *dev,
- struct device_attribute *attr,
- const char *page,
- size_t count)
-{
- int cpu = dev->id;
- long lotar = HV_XY_TO_LOTAR(cpu_x(cpu), cpu_y(cpu));
-
- ssize_t n = hv_confstr(HV_CONFSTR_HV_STATS, 0, 0, lotar, 1);
- return n < 0 ? n : count;
-}
-
-static DEVICE_ATTR_RW(hv_stats);
-
-static int hv_stats_device_add(struct device *dev, struct subsys_interface *sif)
-{
- int err, cpu = dev->id;
-
- if (!cpu_online(cpu))
- return 0;
-
- err = sysfs_create_file(&dev->kobj, &dev_attr_hv_stats.attr);
-
- return err;
-}
-
-static void hv_stats_device_remove(struct device *dev,
- struct subsys_interface *sif)
-{
- int cpu = dev->id;
-
- if (cpu_online(cpu))
- sysfs_remove_file(&dev->kobj, &dev_attr_hv_stats.attr);
-}
-
-
-static struct subsys_interface hv_stats_interface = {
- .name = "hv_stats",
- .subsys = &cpu_subsys,
- .add_dev = hv_stats_device_add,
- .remove_dev = hv_stats_device_remove,
-};
-
-static int __init create_sysfs_entries(void)
-{
- int err = 0;
-
-#define create_cpu_attr(name) \
- if (!err) \
- err = device_create_file(cpu_subsys.dev_root, &dev_attr_##name);
- create_cpu_attr(chip_width);
- create_cpu_attr(chip_height);
- create_cpu_attr(chip_serial);
- create_cpu_attr(chip_revision);
-
-#define create_hv_attr(name) \
- if (!err) \
- err = sysfs_create_file(hypervisor_kobj, &dev_attr_##name.attr);
- create_hv_attr(type);
- create_hv_attr(version);
- create_hv_attr(config_version);
-
- if (!err)
- err = sysfs_create_group(hypervisor_kobj, &board_attr_group);
-
- if (!err) {
- sysfs_bin_attr_init(&hvconfig_bin);
- hvconfig_bin.attr.name = "hvconfig";
- hvconfig_bin.attr.mode = S_IRUGO;
- hvconfig_bin.read = hvconfig_bin_read;
- hvconfig_bin.size = PAGE_SIZE;
- err = sysfs_create_bin_file(hypervisor_kobj, &hvconfig_bin);
- }
-
- if (!err) {
- /*
- * Don't bother adding the hv_stats files on each CPU if
- * our hypervisor doesn't supply statistics.
- */
- int cpu = raw_smp_processor_id();
- long lotar = HV_XY_TO_LOTAR(cpu_x(cpu), cpu_y(cpu));
- char dummy;
- ssize_t n = hv_confstr(HV_CONFSTR_HV_STATS,
- (unsigned long) &dummy, 1,
- lotar, 0);
- if (n >= 0)
- err = subsys_interface_register(&hv_stats_interface);
- }
-
- return err;
-}
-subsys_initcall(create_sysfs_entries);
generated by cgit v1.2.3 (git 2.39.0) at 2024-11-07 16:19:19 +0300