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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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a53c8fab3f
Remove the file name from the comment at top of many files. In most cases the file name was wrong anyway, so it's rather pointless. Also unify the IBM copyright statement. We did have a lot of sightly different statements and wanted to change them one after another whenever a file gets touched. However that never happened. Instead people start to take the old/"wrong" statements to use as a template for new files. So unify all of them in one go. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
78 lines
1.7 KiB
C
78 lines
1.7 KiB
C
/*
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* Copyright IBM Corp. 2007
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* Author(s): Heiko Carstens <heiko.carstens@de.ibm.com>
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*/
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#define KMSG_COMPONENT "sclp_config"
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#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
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#include <linux/init.h>
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#include <linux/errno.h>
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#include <linux/cpu.h>
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#include <linux/device.h>
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#include <linux/workqueue.h>
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#include <asm/smp.h>
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#include "sclp.h"
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struct conf_mgm_data {
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u8 reserved;
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u8 ev_qualifier;
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} __attribute__((packed));
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#define EV_QUAL_CPU_CHANGE 1
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#define EV_QUAL_CAP_CHANGE 3
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static struct work_struct sclp_cpu_capability_work;
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static struct work_struct sclp_cpu_change_work;
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static void sclp_cpu_capability_notify(struct work_struct *work)
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{
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int cpu;
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struct device *dev;
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s390_adjust_jiffies();
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pr_warning("cpu capability changed.\n");
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get_online_cpus();
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for_each_online_cpu(cpu) {
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dev = get_cpu_device(cpu);
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kobject_uevent(&dev->kobj, KOBJ_CHANGE);
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}
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put_online_cpus();
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}
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static void __ref sclp_cpu_change_notify(struct work_struct *work)
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{
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smp_rescan_cpus();
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}
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static void sclp_conf_receiver_fn(struct evbuf_header *evbuf)
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{
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struct conf_mgm_data *cdata;
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cdata = (struct conf_mgm_data *)(evbuf + 1);
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switch (cdata->ev_qualifier) {
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case EV_QUAL_CPU_CHANGE:
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schedule_work(&sclp_cpu_change_work);
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break;
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case EV_QUAL_CAP_CHANGE:
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schedule_work(&sclp_cpu_capability_work);
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break;
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}
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}
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static struct sclp_register sclp_conf_register =
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{
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.receive_mask = EVTYP_CONFMGMDATA_MASK,
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.receiver_fn = sclp_conf_receiver_fn,
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};
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static int __init sclp_conf_init(void)
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{
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INIT_WORK(&sclp_cpu_capability_work, sclp_cpu_capability_notify);
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INIT_WORK(&sclp_cpu_change_work, sclp_cpu_change_notify);
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return sclp_register(&sclp_conf_register);
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}
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__initcall(sclp_conf_init);
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