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Merge branch 'for-linus' of git://git390.osdl.marist.edu/pub/scm/linux-2.6

Browse source 
* 'for-linus' of git://git390.osdl.marist.edu/pub/scm/linux-2.6:
  [S390] Update default configuration.
  [S390] use generic sys_ptrace
  [S390] Remove self ptrace IEEE_IP hack.
  [S390] Convert to SPARSEMEM & SPARSEMEM_VMEMMAP
  [S390] System z large page support.
  [S390] Convert machine feature detection code to C.
  [S390] vmemmap: use clear_table to initialise page tables.
  [S390] Move stfl to system.h and delete duplicated version.
  [S390] uaccess_mvcos: #ifdef config dependent code.
  [S390] cpu topology: Fix possible deadlock.
  [S390] Add topology_core_siblings to topology.h
  [S390] cio: Make isc handling more robust.
  [S390] remove -traditional
  [S390] Automatically detect added cpus.
  [S390] smp: Fix locking order.
  [S390] Add missing ifndef/define to include/asm-s390/sysinfo.h.
  [S390] Move show_regs to traps.c.
  [S390] cio: Use strict_strtoul() for attributes.
This commit is contained in:
Linus Torvalds 2008-04-30 08:38:30 -07:00
commit d67c6f869c
46 changed files with 892 additions and 501 deletions
Download patch file Download diff file Expand all files Collapse all files

17
drivers/s390/char/sclp_config.c
View file

@ -10,6 +10,7 @@
#include <linux/cpu.h>
#include <linux/sysdev.h>
#include <linux/workqueue.h>
#include <asm/smp.h>
#include "sclp.h"
#define TAG "sclp_config: "
@ -19,9 +20,11 @@ struct conf_mgm_data {
u8 ev_qualifier;
} __attribute__((packed));
#define EV_QUAL_CPU_CHANGE 1
#define EV_QUAL_CAP_CHANGE 3
static struct work_struct sclp_cpu_capability_work;
static struct work_struct sclp_cpu_change_work;
static void sclp_cpu_capability_notify(struct work_struct *work)
{
@ -37,13 +40,24 @@ static void sclp_cpu_capability_notify(struct work_struct *work)
put_online_cpus();
}
static void sclp_cpu_change_notify(struct work_struct *work)
{
smp_rescan_cpus();
}
static void sclp_conf_receiver_fn(struct evbuf_header *evbuf)
{
struct conf_mgm_data *cdata;
cdata = (struct conf_mgm_data *)(evbuf + 1);
if (cdata->ev_qualifier == EV_QUAL_CAP_CHANGE)
switch (cdata->ev_qualifier) {
case EV_QUAL_CPU_CHANGE:
schedule_work(&sclp_cpu_change_work);
break;
case EV_QUAL_CAP_CHANGE:
schedule_work(&sclp_cpu_capability_work);
break;
}
}
static struct sclp_register sclp_conf_register =
@ -57,6 +71,7 @@ static int __init sclp_conf_init(void)
int rc;
INIT_WORK(&sclp_cpu_capability_work, sclp_cpu_capability_notify);
INIT_WORK(&sclp_cpu_change_work, sclp_cpu_change_notify);
rc = sclp_register(&sclp_conf_register);
if (rc) {

7
drivers/s390/cio/ccwgroup.c
View file

@ -318,7 +318,7 @@ ccwgroup_online_store (struct device *dev, struct device_attribute *attr, const
{
struct ccwgroup_device *gdev;
struct ccwgroup_driver *gdrv;
unsigned int value;
unsigned long value;
int ret;
gdev = to_ccwgroupdev(dev);
@ -329,7 +329,9 @@ ccwgroup_online_store (struct device *dev, struct device_attribute *attr, const
if (!try_module_get(gdrv->owner))
return -EINVAL;
value = simple_strtoul(buf, NULL, 0);
ret = strict_strtoul(buf, 0, &value);
if (ret)
goto out;
ret = count;
if (value == 1)
ccwgroup_set_online(gdev);
@ -337,6 +339,7 @@ ccwgroup_online_store (struct device *dev, struct device_attribute *attr, const
ccwgroup_set_offline(gdev);
else
ret = -EINVAL;
out:
module_put(gdrv->owner);
return ret;
}

9
drivers/s390/cio/cio.c
View file

@ -407,8 +407,7 @@ cio_modify (struct subchannel *sch)
/*
* Enable subchannel.
*/
int cio_enable_subchannel(struct subchannel *sch, unsigned int isc,
u32 intparm)
int cio_enable_subchannel(struct subchannel *sch, u32 intparm)
{
char dbf_txt[15];
int ccode;
@ -426,7 +425,7 @@ int cio_enable_subchannel(struct subchannel *sch, unsigned int isc,
for (retry = 5, ret = 0; retry > 0; retry--) {
sch->schib.pmcw.ena = 1;
sch->schib.pmcw.isc = isc;
sch->schib.pmcw.isc = sch->isc;
sch->schib.pmcw.intparm = intparm;
ret = cio_modify(sch);
if (ret == -ENODEV)
@ -600,6 +599,7 @@ cio_validate_subchannel (struct subchannel *sch, struct subchannel_id schid)
else
sch->opm = chp_get_sch_opm(sch);
sch->lpm = sch->schib.pmcw.pam & sch->opm;
sch->isc = 3;
CIO_DEBUG(KERN_INFO, 0,
"Detected device %04x on subchannel 0.%x.%04X"
@ -610,13 +610,11 @@ cio_validate_subchannel (struct subchannel *sch, struct subchannel_id schid)
/*
* We now have to initially ...
* ... set "interruption subclass"
* ... enable "concurrent sense"
* ... enable "multipath mode" if more than one
* CHPID is available. This is done regardless
* whether multiple paths are available for us.
*/
sch->schib.pmcw.isc = 3; /* could be smth. else */
sch->schib.pmcw.csense = 1; /* concurrent sense */
sch->schib.pmcw.ena = 0;
if ((sch->lpm & (sch->lpm - 1)) != 0)
@ -812,6 +810,7 @@ cio_probe_console(void)
* enable console I/O-interrupt subclass 7
*/
ctl_set_bit(6, 24);
console_subchannel.isc = 7;
console_subchannel.schib.pmcw.isc = 7;
console_subchannel.schib.pmcw.intparm =
(u32)(addr_t)&console_subchannel;

3
drivers/s390/cio/cio.h
View file

@ -74,6 +74,7 @@ struct subchannel {
__u8 lpm; /* logical path mask */
__u8 opm; /* operational path mask */
struct schib schib; /* subchannel information block */
int isc; /* desired interruption subclass */
struct chsc_ssd_info ssd_info; /* subchannel description */
struct device dev; /* entry in device tree */
struct css_driver *driver;
@ -85,7 +86,7 @@ struct subchannel {
#define to_subchannel(n) container_of(n, struct subchannel, dev)
extern int cio_validate_subchannel (struct subchannel *, struct subchannel_id);
extern int cio_enable_subchannel(struct subchannel *, unsigned int, u32);
extern int cio_enable_subchannel(struct subchannel *, u32);
extern int cio_disable_subchannel (struct subchannel *);
extern int cio_cancel (struct subchannel *);
extern int cio_clear (struct subchannel *);

11
drivers/s390/cio/cmf.c
View file

@ -1219,16 +1219,21 @@ static ssize_t cmb_enable_store(struct device *dev,
{
struct ccw_device *cdev;
int ret;
unsigned long val;
ret = strict_strtoul(buf, 16, &val);
if (ret)
return ret;
cdev = to_ccwdev(dev);
switch (buf[0]) {
case '0':
switch (val) {
case 0:
ret = disable_cmf(cdev);
if (ret)
dev_info(&cdev->dev, "disable_cmf failed (%d)\n", ret);
break;
case '1':
case 1:
ret = enable_cmf(cdev);
if (ret && ret != -EBUSY)
dev_info(&cdev->dev, "enable_cmf failed (%d)\n", ret);

10
drivers/s390/cio/css.c
View file

@ -705,13 +705,17 @@ css_cm_enable_store(struct device *dev, struct device_attribute *attr,
{
struct channel_subsystem *css = to_css(dev);
int ret;
unsigned long val;
ret = strict_strtoul(buf, 16, &val);
if (ret)
return ret;
mutex_lock(&css->mutex);
switch (buf[0]) {
case '0':
switch (val) {
case 0:
ret = css->cm_enabled ? chsc_secm(css, 0) : 0;
break;
case '1':
case 1:
ret = css->cm_enabled ? 0 : chsc_secm(css, 1);
break;
default:

17
drivers/s390/cio/device.c
View file

@ -512,8 +512,8 @@ static ssize_t online_store (struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
struct ccw_device *cdev = to_ccwdev(dev);
int i, force;
char *tmp;
int force, ret;
unsigned long i;
if (atomic_cmpxchg(&cdev->private->onoff, 0, 1) != 0)
return -EAGAIN;
@ -525,25 +525,30 @@ static ssize_t online_store (struct device *dev, struct device_attribute *attr,
if (!strncmp(buf, "force\n", count)) {
force = 1;
i = 1;
ret = 0;
} else {
force = 0;
i = simple_strtoul(buf, &tmp, 16);
ret = strict_strtoul(buf, 16, &i);
}
if (ret)
goto out;
switch (i) {
case 0:
online_store_handle_offline(cdev);
ret = count;
break;
case 1:
online_store_handle_online(cdev, force);
ret = count;
break;
default:
count = -EINVAL;
ret = -EINVAL;
}
out:
if (cdev->drv)
module_put(cdev->drv->owner);
atomic_set(&cdev->private->onoff, 0);
return count;
return ret;
}
static ssize_t

10
drivers/s390/cio/device_fsm.c
View file

@ -555,8 +555,7 @@ ccw_device_recognition(struct ccw_device *cdev)
(cdev->private->state != DEV_STATE_BOXED))
return -EINVAL;
sch = to_subchannel(cdev->dev.parent);
ret = cio_enable_subchannel(sch, sch->schib.pmcw.isc,
(u32)(addr_t)sch);
ret = cio_enable_subchannel(sch, (u32)(addr_t)sch);
if (ret != 0)
/* Couldn't enable the subchannel for i/o. Sick device. */
return ret;
@ -667,8 +666,7 @@ ccw_device_online(struct ccw_device *cdev)
sch = to_subchannel(cdev->dev.parent);
if (css_init_done && !get_device(&cdev->dev))
return -ENODEV;
ret = cio_enable_subchannel(sch, sch->schib.pmcw.isc,
(u32)(addr_t)sch);
ret = cio_enable_subchannel(sch, (u32)(addr_t)sch);
if (ret != 0) {
/* Couldn't enable the subchannel for i/o. Sick device. */
if (ret == -ENODEV)
@ -1048,8 +1046,7 @@ ccw_device_start_id(struct ccw_device *cdev, enum dev_event dev_event)
struct subchannel *sch;
sch = to_subchannel(cdev->dev.parent);
if (cio_enable_subchannel(sch, sch->schib.pmcw.isc,
(u32)(addr_t)sch) != 0)
if (cio_enable_subchannel(sch, (u32)(addr_t)sch) != 0)
/* Couldn't enable the subchannel for i/o. Sick device. */
return;
@ -1082,7 +1079,6 @@ device_trigger_reprobe(struct subchannel *sch)
*/
sch->lpm = sch->schib.pmcw.pam & sch->opm;
/* Re-set some bits in the pmcw that were lost. */
sch->schib.pmcw.isc = 3;
sch->schib.pmcw.csense = 1;
sch->schib.pmcw.ena = 0;
if ((sch->lpm & (sch->lpm - 1)) != 0)

2
drivers/s390/cio/device_ops.c
View file

@ -508,7 +508,7 @@ ccw_device_stlck(struct ccw_device *cdev)
return -ENOMEM;
}
spin_lock_irqsave(sch->lock, flags);
ret = cio_enable_subchannel(sch, 3, (u32)(addr_t)sch);
ret = cio_enable_subchannel(sch, (u32)(addr_t)sch);
if (ret)
goto out_unlock;
/*

8
drivers/s390/cio/qdio.c
View file

@ -3663,11 +3663,11 @@ qdio_performance_stats_show(struct bus_type *bus, char *buf)
static ssize_t
qdio_performance_stats_store(struct bus_type *bus, const char *buf, size_t count)
{
char *tmp;
int i;
unsigned long i;
int ret;
i = simple_strtoul(buf, &tmp, 16);
if ((i == 0) || (i == 1)) {
ret = strict_strtoul(buf, 16, &i);
if (!ret && ((i == 0) || (i == 1))) {
if (i == qdio_performance_stats)
return count;
qdio_performance_stats = i;

23
drivers/s390/kvm/kvm_virtio.c
View file

@ -17,6 +17,7 @@
#include <linux/virtio_config.h>
#include <linux/interrupt.h>
#include <linux/virtio_ring.h>
#include <linux/pfn.h>
#include <asm/io.h>
#include <asm/kvm_para.h>
#include <asm/kvm_virtio.h>
@ -180,11 +181,10 @@ static struct virtqueue *kvm_find_vq(struct virtio_device *vdev,
config = kvm_vq_config(kdev->desc)+index;
if (add_shared_memory(config->address,
vring_size(config->num, PAGE_SIZE))) {
err = -ENOMEM;
err = vmem_add_mapping(config->address,
vring_size(config->num, PAGE_SIZE));
if (err)
goto out;
}
vq = vring_new_virtqueue(config->num, vdev, (void *) config->address,
kvm_notify, callback);
@ -202,8 +202,8 @@ static struct virtqueue *kvm_find_vq(struct virtio_device *vdev,
vq->priv = config;
return vq;
unmap:
remove_shared_memory(config->address, vring_size(config->num,
PAGE_SIZE));
vmem_remove_mapping(config->address,
vring_size(config->num, PAGE_SIZE));
out:
return ERR_PTR(err);
}
@ -213,8 +213,8 @@ static void kvm_del_vq(struct virtqueue *vq)
struct kvm_vqconfig *config = vq->priv;
vring_del_virtqueue(vq);
remove_shared_memory(config->address,
vring_size(config->num, PAGE_SIZE));
vmem_remove_mapping(config->address,
vring_size(config->num, PAGE_SIZE));
}
/*
@ -318,12 +318,13 @@ static int __init kvm_devices_init(void)
return rc;
}
if (add_shared_memory((max_pfn) << PAGE_SHIFT, PAGE_SIZE)) {
rc = vmem_add_mapping(PFN_PHYS(max_pfn), PAGE_SIZE);
if (rc) {
device_unregister(&kvm_root);
return -ENOMEM;
return rc;
}
kvm_devices = (void *) (max_pfn << PAGE_SHIFT);
kvm_devices = (void *) PFN_PHYS(max_pfn);
ctl_set_bit(0, 9);
register_external_interrupt(0x2603, kvm_extint_handler);