^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) * file for managing the edac_device subsystem of devices for EDAC
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) * (C) 2007 SoftwareBitMaker
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) * This file may be distributed under the terms of the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) * GNU General Public License.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) * Written Doug Thompson <norsk5@xmission.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <linux/ctype.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include <linux/slab.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include <linux/edac.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #include "edac_device.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #include "edac_module.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) #define EDAC_DEVICE_SYMLINK "device"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) #define to_edacdev(k) container_of(k, struct edac_device_ctl_info, kobj)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) #define to_edacdev_attr(a) container_of(a, struct edacdev_attribute, attr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) * Set of edac_device_ctl_info attribute store/show functions
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) /* 'log_ue' */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) static ssize_t edac_device_ctl_log_ue_show(struct edac_device_ctl_info
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) *ctl_info, char *data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) return sprintf(data, "%u\n", ctl_info->log_ue);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) static ssize_t edac_device_ctl_log_ue_store(struct edac_device_ctl_info
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) *ctl_info, const char *data,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) size_t count)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) /* if parameter is zero, turn off flag, if non-zero turn on flag */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) ctl_info->log_ue = (simple_strtoul(data, NULL, 0) != 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) return count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) /* 'log_ce' */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) static ssize_t edac_device_ctl_log_ce_show(struct edac_device_ctl_info
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) *ctl_info, char *data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) return sprintf(data, "%u\n", ctl_info->log_ce);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) static ssize_t edac_device_ctl_log_ce_store(struct edac_device_ctl_info
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) *ctl_info, const char *data,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) size_t count)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) /* if parameter is zero, turn off flag, if non-zero turn on flag */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) ctl_info->log_ce = (simple_strtoul(data, NULL, 0) != 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) return count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) /* 'panic_on_ue' */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) static ssize_t edac_device_ctl_panic_on_ue_show(struct edac_device_ctl_info
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) *ctl_info, char *data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) return sprintf(data, "%u\n", ctl_info->panic_on_ue);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) static ssize_t edac_device_ctl_panic_on_ue_store(struct edac_device_ctl_info
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) *ctl_info, const char *data,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) size_t count)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) /* if parameter is zero, turn off flag, if non-zero turn on flag */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) ctl_info->panic_on_ue = (simple_strtoul(data, NULL, 0) != 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) return count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) /* 'poll_msec' show and store functions*/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) static ssize_t edac_device_ctl_poll_msec_show(struct edac_device_ctl_info
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) *ctl_info, char *data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) return sprintf(data, "%u\n", ctl_info->poll_msec);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) static ssize_t edac_device_ctl_poll_msec_store(struct edac_device_ctl_info
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) *ctl_info, const char *data,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) size_t count)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) unsigned long value;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) /* get the value and enforce that it is non-zero, must be at least
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) * one millisecond for the delay period, between scans
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) * Then cancel last outstanding delay for the work request
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) * and set a new one.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) value = simple_strtoul(data, NULL, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) edac_device_reset_delay_period(ctl_info, value);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) return count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) /* edac_device_ctl_info specific attribute structure */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) struct ctl_info_attribute {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) struct attribute attr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) ssize_t(*show) (struct edac_device_ctl_info *, char *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) ssize_t(*store) (struct edac_device_ctl_info *, const char *, size_t);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) #define to_ctl_info(k) container_of(k, struct edac_device_ctl_info, kobj)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) #define to_ctl_info_attr(a) container_of(a,struct ctl_info_attribute,attr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) /* Function to 'show' fields from the edac_dev 'ctl_info' structure */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) static ssize_t edac_dev_ctl_info_show(struct kobject *kobj,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) struct attribute *attr, char *buffer)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) struct edac_device_ctl_info *edac_dev = to_ctl_info(kobj);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) struct ctl_info_attribute *ctl_info_attr = to_ctl_info_attr(attr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) if (ctl_info_attr->show)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) return ctl_info_attr->show(edac_dev, buffer);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) return -EIO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) /* Function to 'store' fields into the edac_dev 'ctl_info' structure */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) static ssize_t edac_dev_ctl_info_store(struct kobject *kobj,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) struct attribute *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) const char *buffer, size_t count)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) struct edac_device_ctl_info *edac_dev = to_ctl_info(kobj);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) struct ctl_info_attribute *ctl_info_attr = to_ctl_info_attr(attr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) if (ctl_info_attr->store)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) return ctl_info_attr->store(edac_dev, buffer, count);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) return -EIO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) /* edac_dev file operations for an 'ctl_info' */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) static const struct sysfs_ops device_ctl_info_ops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) .show = edac_dev_ctl_info_show,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) .store = edac_dev_ctl_info_store
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) #define CTL_INFO_ATTR(_name,_mode,_show,_store) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) static struct ctl_info_attribute attr_ctl_info_##_name = { \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) .attr = {.name = __stringify(_name), .mode = _mode }, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) .show = _show, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) .store = _store, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) /* Declare the various ctl_info attributes here and their respective ops */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) CTL_INFO_ATTR(log_ue, S_IRUGO | S_IWUSR,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) edac_device_ctl_log_ue_show, edac_device_ctl_log_ue_store);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) CTL_INFO_ATTR(log_ce, S_IRUGO | S_IWUSR,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) edac_device_ctl_log_ce_show, edac_device_ctl_log_ce_store);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) CTL_INFO_ATTR(panic_on_ue, S_IRUGO | S_IWUSR,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) edac_device_ctl_panic_on_ue_show,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) edac_device_ctl_panic_on_ue_store);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) CTL_INFO_ATTR(poll_msec, S_IRUGO | S_IWUSR,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) edac_device_ctl_poll_msec_show, edac_device_ctl_poll_msec_store);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) /* Base Attributes of the EDAC_DEVICE ECC object */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) static struct ctl_info_attribute *device_ctrl_attr[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) &attr_ctl_info_panic_on_ue,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) &attr_ctl_info_log_ue,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) &attr_ctl_info_log_ce,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) &attr_ctl_info_poll_msec,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) NULL,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) * edac_device_ctrl_master_release
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) * called when the reference count for the 'main' kobj
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) * for a edac_device control struct reaches zero
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) * Reference count model:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) * One 'main' kobject for each control structure allocated.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) * That main kobj is initially set to one AND
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) * the reference count for the EDAC 'core' module is
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) * bumped by one, thus added 'keep in memory' dependency.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) * Each new internal kobj (in instances and blocks) then
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) * bumps the 'main' kobject.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) * When they are released their release functions decrement
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) * the 'main' kobj.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) * When the main kobj reaches zero (0) then THIS function
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) * is called which then decrements the EDAC 'core' module.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) * When the module reference count reaches zero then the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) * module no longer has dependency on keeping the release
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) * function code in memory and module can be unloaded.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) * This will support several control objects as well, each
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) * with its own 'main' kobj.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) static void edac_device_ctrl_master_release(struct kobject *kobj)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) struct edac_device_ctl_info *edac_dev = to_edacdev(kobj);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) edac_dbg(4, "control index=%d\n", edac_dev->dev_idx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) /* decrement the EDAC CORE module ref count */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) module_put(edac_dev->owner);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) /* free the control struct containing the 'main' kobj
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) * passed in to this routine
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) kfree(edac_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) /* ktype for the main (master) kobject */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) static struct kobj_type ktype_device_ctrl = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) .release = edac_device_ctrl_master_release,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) .sysfs_ops = &device_ctl_info_ops,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) .default_attrs = (struct attribute **)device_ctrl_attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) * edac_device_register_sysfs_main_kobj
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) * perform the high level setup for the new edac_device instance
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) * Return: 0 SUCCESS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) * !0 FAILURE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) int edac_device_register_sysfs_main_kobj(struct edac_device_ctl_info *edac_dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) struct bus_type *edac_subsys;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) edac_dbg(1, "\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) /* get the /sys/devices/system/edac reference */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) edac_subsys = edac_get_sysfs_subsys();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) /* Point to the 'edac_subsys' this instance 'reports' to */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) edac_dev->edac_subsys = edac_subsys;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) /* Init the devices's kobject */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) memset(&edac_dev->kobj, 0, sizeof(struct kobject));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) /* Record which module 'owns' this control structure
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) * and bump the ref count of the module
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) edac_dev->owner = THIS_MODULE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) if (!try_module_get(edac_dev->owner)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) err = -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) goto err_out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) /* register */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) err = kobject_init_and_add(&edac_dev->kobj, &ktype_device_ctrl,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) &edac_subsys->dev_root->kobj,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) "%s", edac_dev->name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) if (err) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) edac_dbg(1, "Failed to register '.../edac/%s'\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) edac_dev->name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) goto err_kobj_reg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) kobject_uevent(&edac_dev->kobj, KOBJ_ADD);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) /* At this point, to 'free' the control struct,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) * edac_device_unregister_sysfs_main_kobj() must be used
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) edac_dbg(4, "Registered '.../edac/%s' kobject\n", edac_dev->name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) /* Error exit stack */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) err_kobj_reg:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) kobject_put(&edac_dev->kobj);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) module_put(edac_dev->owner);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) err_out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) * edac_device_unregister_sysfs_main_kobj:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) * the '..../edac/<name>' kobject
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) void edac_device_unregister_sysfs_main_kobj(struct edac_device_ctl_info *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) edac_dbg(0, "\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) edac_dbg(4, "name of kobject is: %s\n", kobject_name(&dev->kobj));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) * Unregister the edac device's kobject and
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) * allow for reference count to reach 0 at which point
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) * the callback will be called to:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) * a) module_put() this module
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) * b) 'kfree' the memory
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) kobject_put(&dev->kobj);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) /* edac_dev -> instance information */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) * Set of low-level instance attribute show functions
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) static ssize_t instance_ue_count_show(struct edac_device_instance *instance,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) char *data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) return sprintf(data, "%u\n", instance->counters.ue_count);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) static ssize_t instance_ce_count_show(struct edac_device_instance *instance,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) char *data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) return sprintf(data, "%u\n", instance->counters.ce_count);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) #define to_instance(k) container_of(k, struct edac_device_instance, kobj)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) #define to_instance_attr(a) container_of(a,struct instance_attribute,attr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) /* DEVICE instance kobject release() function */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) static void edac_device_ctrl_instance_release(struct kobject *kobj)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) struct edac_device_instance *instance;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) edac_dbg(1, "\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) /* map from this kobj to the main control struct
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) * and then dec the main kobj count
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) instance = to_instance(kobj);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) kobject_put(&instance->ctl->kobj);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) /* instance specific attribute structure */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) struct instance_attribute {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) struct attribute attr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) ssize_t(*show) (struct edac_device_instance *, char *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) ssize_t(*store) (struct edac_device_instance *, const char *, size_t);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) /* Function to 'show' fields from the edac_dev 'instance' structure */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346) static ssize_t edac_dev_instance_show(struct kobject *kobj,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) struct attribute *attr, char *buffer)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) struct edac_device_instance *instance = to_instance(kobj);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) struct instance_attribute *instance_attr = to_instance_attr(attr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352) if (instance_attr->show)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) return instance_attr->show(instance, buffer);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) return -EIO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) /* Function to 'store' fields into the edac_dev 'instance' structure */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) static ssize_t edac_dev_instance_store(struct kobject *kobj,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359) struct attribute *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) const char *buffer, size_t count)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362) struct edac_device_instance *instance = to_instance(kobj);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) struct instance_attribute *instance_attr = to_instance_attr(attr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) if (instance_attr->store)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366) return instance_attr->store(instance, buffer, count);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) return -EIO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370) /* edac_dev file operations for an 'instance' */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371) static const struct sysfs_ops device_instance_ops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372) .show = edac_dev_instance_show,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373) .store = edac_dev_instance_store
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376) #define INSTANCE_ATTR(_name,_mode,_show,_store) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377) static struct instance_attribute attr_instance_##_name = { \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378) .attr = {.name = __stringify(_name), .mode = _mode }, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379) .show = _show, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) .store = _store, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384) * Define attributes visible for the edac_device instance object
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385) * Each contains a pointer to a show and an optional set
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386) * function pointer that does the low level output/input
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388) INSTANCE_ATTR(ce_count, S_IRUGO, instance_ce_count_show, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389) INSTANCE_ATTR(ue_count, S_IRUGO, instance_ue_count_show, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391) /* list of edac_dev 'instance' attributes */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392) static struct instance_attribute *device_instance_attr[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393) &attr_instance_ce_count,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394) &attr_instance_ue_count,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395) NULL,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398) /* The 'ktype' for each edac_dev 'instance' */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399) static struct kobj_type ktype_instance_ctrl = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400) .release = edac_device_ctrl_instance_release,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401) .sysfs_ops = &device_instance_ops,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402) .default_attrs = (struct attribute **)device_instance_attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405) /* edac_dev -> instance -> block information */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407) #define to_block(k) container_of(k, struct edac_device_block, kobj)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408) #define to_block_attr(a) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409) container_of(a, struct edac_dev_sysfs_block_attribute, attr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412) * Set of low-level block attribute show functions
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414) static ssize_t block_ue_count_show(struct kobject *kobj,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415) struct attribute *attr, char *data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417) struct edac_device_block *block = to_block(kobj);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419) return sprintf(data, "%u\n", block->counters.ue_count);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 421)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 422) static ssize_t block_ce_count_show(struct kobject *kobj,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 423) struct attribute *attr, char *data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 424) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 425) struct edac_device_block *block = to_block(kobj);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 426)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 427) return sprintf(data, "%u\n", block->counters.ce_count);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 428) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 429)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 430) /* DEVICE block kobject release() function */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 431) static void edac_device_ctrl_block_release(struct kobject *kobj)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 432) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 433) struct edac_device_block *block;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 434)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 435) edac_dbg(1, "\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 436)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 437) /* get the container of the kobj */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 438) block = to_block(kobj);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 439)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 440) /* map from 'block kobj' to 'block->instance->controller->main_kobj'
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 441) * now 'release' the block kobject
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 442) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 443) kobject_put(&block->instance->ctl->kobj);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 444) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 445)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 446)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 447) /* Function to 'show' fields from the edac_dev 'block' structure */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 448) static ssize_t edac_dev_block_show(struct kobject *kobj,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 449) struct attribute *attr, char *buffer)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 450) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 451) struct edac_dev_sysfs_block_attribute *block_attr =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 452) to_block_attr(attr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 453)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 454) if (block_attr->show)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 455) return block_attr->show(kobj, attr, buffer);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 456) return -EIO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 457) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 458)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 459) /* Function to 'store' fields into the edac_dev 'block' structure */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 460) static ssize_t edac_dev_block_store(struct kobject *kobj,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 461) struct attribute *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 462) const char *buffer, size_t count)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 463) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 464) struct edac_dev_sysfs_block_attribute *block_attr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 465)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 466) block_attr = to_block_attr(attr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 467)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 468) if (block_attr->store)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 469) return block_attr->store(kobj, attr, buffer, count);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 470) return -EIO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 471) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 472)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 473) /* edac_dev file operations for a 'block' */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 474) static const struct sysfs_ops device_block_ops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 475) .show = edac_dev_block_show,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 476) .store = edac_dev_block_store
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 477) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 478)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 479) #define BLOCK_ATTR(_name,_mode,_show,_store) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 480) static struct edac_dev_sysfs_block_attribute attr_block_##_name = { \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 481) .attr = {.name = __stringify(_name), .mode = _mode }, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 482) .show = _show, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 483) .store = _store, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 484) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 485)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 486) BLOCK_ATTR(ce_count, S_IRUGO, block_ce_count_show, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 487) BLOCK_ATTR(ue_count, S_IRUGO, block_ue_count_show, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 488)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 489) /* list of edac_dev 'block' attributes */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 490) static struct edac_dev_sysfs_block_attribute *device_block_attr[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 491) &attr_block_ce_count,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 492) &attr_block_ue_count,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 493) NULL,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 494) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 495)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 496) /* The 'ktype' for each edac_dev 'block' */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 497) static struct kobj_type ktype_block_ctrl = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 498) .release = edac_device_ctrl_block_release,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 499) .sysfs_ops = &device_block_ops,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 500) .default_attrs = (struct attribute **)device_block_attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 501) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 502)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 503) /* block ctor/dtor code */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 504)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 505) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 506) * edac_device_create_block
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 507) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 508) static int edac_device_create_block(struct edac_device_ctl_info *edac_dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 509) struct edac_device_instance *instance,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 510) struct edac_device_block *block)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 511) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 512) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 513) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 514) struct edac_dev_sysfs_block_attribute *sysfs_attrib;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 515) struct kobject *main_kobj;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 516)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 517) edac_dbg(4, "Instance '%s' inst_p=%p block '%s' block_p=%p\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 518) instance->name, instance, block->name, block);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 519) edac_dbg(4, "block kobj=%p block kobj->parent=%p\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 520) &block->kobj, &block->kobj.parent);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 521)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 522) /* init this block's kobject */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 523) memset(&block->kobj, 0, sizeof(struct kobject));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 524)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 525) /* bump the main kobject's reference count for this controller
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 526) * and this instance is dependent on the main
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 527) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 528) main_kobj = kobject_get(&edac_dev->kobj);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 529) if (!main_kobj) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 530) err = -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 531) goto err_out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 532) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 533)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 534) /* Add this block's kobject */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 535) err = kobject_init_and_add(&block->kobj, &ktype_block_ctrl,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 536) &instance->kobj,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 537) "%s", block->name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 538) if (err) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 539) edac_dbg(1, "Failed to register instance '%s'\n", block->name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 540) kobject_put(main_kobj);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 541) err = -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 542) goto err_out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 543) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 544)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 545) /* If there are driver level block attributes, then added them
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 546) * to the block kobject
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 547) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 548) sysfs_attrib = block->block_attributes;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 549) if (sysfs_attrib && block->nr_attribs) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 550) for (i = 0; i < block->nr_attribs; i++, sysfs_attrib++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 551)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 552) edac_dbg(4, "creating block attrib='%s' attrib->%p to kobj=%p\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 553) sysfs_attrib->attr.name,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 554) sysfs_attrib, &block->kobj);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 555)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 556) /* Create each block_attribute file */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 557) err = sysfs_create_file(&block->kobj,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 558) &sysfs_attrib->attr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 559) if (err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 560) goto err_on_attrib;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 561) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 562) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 563) kobject_uevent(&block->kobj, KOBJ_ADD);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 564)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 565) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 566)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 567) /* Error unwind stack */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 568) err_on_attrib:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 569) kobject_put(&block->kobj);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 570)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 571) err_out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 572) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 573) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 574)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 575) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 576) * edac_device_delete_block(edac_dev,block);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 577) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 578) static void edac_device_delete_block(struct edac_device_ctl_info *edac_dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 579) struct edac_device_block *block)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 580) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 581) struct edac_dev_sysfs_block_attribute *sysfs_attrib;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 582) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 583)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 584) /* if this block has 'attributes' then we need to iterate over the list
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 585) * and 'remove' the attributes on this block
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 586) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 587) sysfs_attrib = block->block_attributes;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 588) if (sysfs_attrib && block->nr_attribs) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 589) for (i = 0; i < block->nr_attribs; i++, sysfs_attrib++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 590)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 591) /* remove each block_attrib file */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 592) sysfs_remove_file(&block->kobj,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 593) (struct attribute *) sysfs_attrib);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 594) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 595) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 596)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 597) /* unregister this block's kobject, SEE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 598) * edac_device_ctrl_block_release() callback operation
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 599) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 600) kobject_put(&block->kobj);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 601) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 602)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 603) /* instance ctor/dtor code */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 604)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 605) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 606) * edac_device_create_instance
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 607) * create just one instance of an edac_device 'instance'
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 608) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 609) static int edac_device_create_instance(struct edac_device_ctl_info *edac_dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 610) int idx)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 611) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 612) int i, j;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 613) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 614) struct edac_device_instance *instance;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 615) struct kobject *main_kobj;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 616)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 617) instance = &edac_dev->instances[idx];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 618)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 619) /* Init the instance's kobject */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 620) memset(&instance->kobj, 0, sizeof(struct kobject));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 621)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 622) instance->ctl = edac_dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 623)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 624) /* bump the main kobject's reference count for this controller
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 625) * and this instance is dependent on the main
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 626) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 627) main_kobj = kobject_get(&edac_dev->kobj);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 628) if (!main_kobj) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 629) err = -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 630) goto err_out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 631) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 632)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 633) /* Formally register this instance's kobject under the edac_device */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 634) err = kobject_init_and_add(&instance->kobj, &ktype_instance_ctrl,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 635) &edac_dev->kobj, "%s", instance->name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 636) if (err != 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 637) edac_dbg(2, "Failed to register instance '%s'\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 638) instance->name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 639) kobject_put(main_kobj);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 640) goto err_out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 641) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 642)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 643) edac_dbg(4, "now register '%d' blocks for instance %d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 644) instance->nr_blocks, idx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 645)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 646) /* register all blocks of this instance */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 647) for (i = 0; i < instance->nr_blocks; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 648) err = edac_device_create_block(edac_dev, instance,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 649) &instance->blocks[i]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 650) if (err) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 651) /* If any fail, remove all previous ones */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 652) for (j = 0; j < i; j++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 653) edac_device_delete_block(edac_dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 654) &instance->blocks[j]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 655) goto err_release_instance_kobj;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 656) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 657) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 658) kobject_uevent(&instance->kobj, KOBJ_ADD);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 659)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 660) edac_dbg(4, "Registered instance %d '%s' kobject\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 661) idx, instance->name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 662)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 663) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 664)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 665) /* error unwind stack */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 666) err_release_instance_kobj:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 667) kobject_put(&instance->kobj);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 668)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 669) err_out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 670) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 671) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 672)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 673) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 674) * edac_device_remove_instance
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 675) * remove an edac_device instance
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 676) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 677) static void edac_device_delete_instance(struct edac_device_ctl_info *edac_dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 678) int idx)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 679) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 680) struct edac_device_instance *instance;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 681) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 682)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 683) instance = &edac_dev->instances[idx];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 684)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 685) /* unregister all blocks in this instance */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 686) for (i = 0; i < instance->nr_blocks; i++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 687) edac_device_delete_block(edac_dev, &instance->blocks[i]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 688)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 689) /* unregister this instance's kobject, SEE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 690) * edac_device_ctrl_instance_release() for callback operation
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 691) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 692) kobject_put(&instance->kobj);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 693) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 694)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 695) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 696) * edac_device_create_instances
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 697) * create the first level of 'instances' for this device
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 698) * (ie 'cache' might have 'cache0', 'cache1', 'cache2', etc
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 699) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 700) static int edac_device_create_instances(struct edac_device_ctl_info *edac_dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 701) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 702) int i, j;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 703) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 704)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 705) edac_dbg(0, "\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 706)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 707) /* iterate over creation of the instances */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 708) for (i = 0; i < edac_dev->nr_instances; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 709) err = edac_device_create_instance(edac_dev, i);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 710) if (err) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 711) /* unwind previous instances on error */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 712) for (j = 0; j < i; j++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 713) edac_device_delete_instance(edac_dev, j);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 714) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 715) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 716) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 717)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 718) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 719) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 720)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 721) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 722) * edac_device_delete_instances(edac_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 723) * unregister all the kobjects of the instances
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 724) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 725) static void edac_device_delete_instances(struct edac_device_ctl_info *edac_dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 726) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 727) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 728)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 729) /* iterate over creation of the instances */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 730) for (i = 0; i < edac_dev->nr_instances; i++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 731) edac_device_delete_instance(edac_dev, i);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 732) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 733)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 734) /* edac_dev sysfs ctor/dtor code */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 735)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 736) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 737) * edac_device_add_main_sysfs_attributes
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 738) * add some attributes to this instance's main kobject
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 739) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 740) static int edac_device_add_main_sysfs_attributes(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 741) struct edac_device_ctl_info *edac_dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 742) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 743) struct edac_dev_sysfs_attribute *sysfs_attrib;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 744) int err = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 745)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 746) sysfs_attrib = edac_dev->sysfs_attributes;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 747) if (sysfs_attrib) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 748) /* iterate over the array and create an attribute for each
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 749) * entry in the list
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 750) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 751) while (sysfs_attrib->attr.name != NULL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 752) err = sysfs_create_file(&edac_dev->kobj,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 753) (struct attribute*) sysfs_attrib);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 754) if (err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 755) goto err_out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 756)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 757) sysfs_attrib++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 758) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 759) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 760)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 761) err_out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 762) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 763) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 764)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 765) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 766) * edac_device_remove_main_sysfs_attributes
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 767) * remove any attributes to this instance's main kobject
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 768) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 769) static void edac_device_remove_main_sysfs_attributes(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 770) struct edac_device_ctl_info *edac_dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 771) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 772) struct edac_dev_sysfs_attribute *sysfs_attrib;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 773)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 774) /* if there are main attributes, defined, remove them. First,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 775) * point to the start of the array and iterate over it
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 776) * removing each attribute listed from this device's instance's kobject
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 777) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 778) sysfs_attrib = edac_dev->sysfs_attributes;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 779) if (sysfs_attrib) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 780) while (sysfs_attrib->attr.name != NULL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 781) sysfs_remove_file(&edac_dev->kobj,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 782) (struct attribute *) sysfs_attrib);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 783) sysfs_attrib++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 784) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 785) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 786) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 787)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 788) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 789) * edac_device_create_sysfs() Constructor
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 790) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 791) * accept a created edac_device control structure
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 792) * and 'export' it to sysfs. The 'main' kobj should already have been
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 793) * created. 'instance' and 'block' kobjects should be registered
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 794) * along with any 'block' attributes from the low driver. In addition,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 795) * the main attributes (if any) are connected to the main kobject of
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 796) * the control structure.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 797) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 798) * Return:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 799) * 0 Success
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 800) * !0 Failure
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 801) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 802) int edac_device_create_sysfs(struct edac_device_ctl_info *edac_dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 803) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 804) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 805) struct kobject *edac_kobj = &edac_dev->kobj;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 806)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 807) edac_dbg(0, "idx=%d\n", edac_dev->dev_idx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 808)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 809) /* go create any main attributes callers wants */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 810) err = edac_device_add_main_sysfs_attributes(edac_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 811) if (err) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 812) edac_dbg(0, "failed to add sysfs attribs\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 813) goto err_out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 814) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 815)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 816) /* create a symlink from the edac device
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 817) * to the platform 'device' being used for this
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 818) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 819) err = sysfs_create_link(edac_kobj,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 820) &edac_dev->dev->kobj, EDAC_DEVICE_SYMLINK);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 821) if (err) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 822) edac_dbg(0, "sysfs_create_link() returned err= %d\n", err);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 823) goto err_remove_main_attribs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 824) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 825)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 826) /* Create the first level instance directories
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 827) * In turn, the nested blocks beneath the instances will
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 828) * be registered as well
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 829) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 830) err = edac_device_create_instances(edac_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 831) if (err) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 832) edac_dbg(0, "edac_device_create_instances() returned err= %d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 833) err);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 834) goto err_remove_link;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 835) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 836)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 837)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 838) edac_dbg(4, "create-instances done, idx=%d\n", edac_dev->dev_idx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 839)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 840) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 841)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 842) /* Error unwind stack */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 843) err_remove_link:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 844) /* remove the sym link */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 845) sysfs_remove_link(&edac_dev->kobj, EDAC_DEVICE_SYMLINK);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 846)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 847) err_remove_main_attribs:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 848) edac_device_remove_main_sysfs_attributes(edac_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 849)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 850) err_out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 851) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 852) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 853)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 854) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 855) * edac_device_remove_sysfs() destructor
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 856) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 857) * given an edac_device struct, tear down the kobject resources
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 858) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 859) void edac_device_remove_sysfs(struct edac_device_ctl_info *edac_dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 860) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 861) edac_dbg(0, "\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 862)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 863) /* remove any main attributes for this device */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 864) edac_device_remove_main_sysfs_attributes(edac_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 865)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 866) /* remove the device sym link */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 867) sysfs_remove_link(&edac_dev->kobj, EDAC_DEVICE_SYMLINK);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 868)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 869) /* walk the instance/block kobject tree, deconstructing it */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 870) edac_device_delete_instances(edac_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 871) }
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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