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Diffstat (limited to 'drivers/s390/cio')
-rw-r--r--drivers/s390/cio/ccwgroup.c2
-rw-r--r--drivers/s390/cio/chp.c31
-rw-r--r--drivers/s390/cio/chp.h1
-rw-r--r--drivers/s390/cio/chsc.c31
-rw-r--r--drivers/s390/cio/chsc.h16
-rw-r--r--drivers/s390/cio/cio.c6
-rw-r--r--drivers/s390/cio/cio.h2
-rw-r--r--drivers/s390/cio/cmf.c15
-rw-r--r--drivers/s390/cio/css.c6
-rw-r--r--drivers/s390/cio/device.c40
-rw-r--r--drivers/s390/cio/ioasm.c107
-rw-r--r--drivers/s390/cio/qdio_main.c28
-rw-r--r--drivers/s390/cio/scm.c2
13 files changed, 161 insertions, 126 deletions
diff --git a/drivers/s390/cio/ccwgroup.c b/drivers/s390/cio/ccwgroup.c
index 66b1bdc63284..7bcf8b98b8dd 100644
--- a/drivers/s390/cio/ccwgroup.c
+++ b/drivers/s390/cio/ccwgroup.c
@@ -147,7 +147,7 @@ static ssize_t ccwgroup_online_show(struct device *dev,
online = (gdev->state == CCWGROUP_ONLINE) ? 1 : 0;
- return scnprintf(buf, PAGE_SIZE, "%d\n", online);
+ return sysfs_emit(buf, "%d\n", online);
}
/*
diff --git a/drivers/s390/cio/chp.c b/drivers/s390/cio/chp.c
index a07bbecba61c..cba2d048a96b 100644
--- a/drivers/s390/cio/chp.c
+++ b/drivers/s390/cio/chp.c
@@ -144,6 +144,18 @@ static ssize_t measurement_chars_read(struct file *filp, struct kobject *kobj,
}
static BIN_ATTR_ADMIN_RO(measurement_chars, sizeof(struct cmg_chars));
+static ssize_t measurement_chars_full_read(struct file *filp,
+ struct kobject *kobj,
+ struct bin_attribute *bin_attr,
+ char *buf, loff_t off, size_t count)
+{
+ struct channel_path *chp = to_channelpath(kobj_to_dev(kobj));
+
+ return memory_read_from_buffer(buf, count, &off, &chp->cmcb,
+ sizeof(chp->cmcb));
+}
+static BIN_ATTR_ADMIN_RO(measurement_chars_full, sizeof(struct cmg_cmcb));
+
static ssize_t chp_measurement_copy_block(void *buf, loff_t off, size_t count,
struct kobject *kobj, bool extended)
{
@@ -201,6 +213,7 @@ static BIN_ATTR_ADMIN_RO(ext_measurement, sizeof(struct cmg_ext_entry));
static struct bin_attribute *measurement_attrs[] = {
&bin_attr_measurement_chars,
+ &bin_attr_measurement_chars_full,
&bin_attr_measurement,
&bin_attr_ext_measurement,
NULL,
@@ -230,7 +243,7 @@ static ssize_t chp_status_show(struct device *dev,
status = chp->state;
mutex_unlock(&chp->lock);
- return status ? sprintf(buf, "online\n") : sprintf(buf, "offline\n");
+ return status ? sysfs_emit(buf, "online\n") : sysfs_emit(buf, "offline\n");
}
static ssize_t chp_status_write(struct device *dev,
@@ -311,7 +324,7 @@ static ssize_t chp_type_show(struct device *dev, struct device_attribute *attr,
mutex_lock(&chp->lock);
type = chp->desc.desc;
mutex_unlock(&chp->lock);
- return sprintf(buf, "%x\n", type);
+ return sysfs_emit(buf, "%x\n", type);
}
static DEVICE_ATTR(type, 0444, chp_type_show, NULL);
@@ -324,8 +337,8 @@ static ssize_t chp_cmg_show(struct device *dev, struct device_attribute *attr,
if (!chp)
return 0;
if (chp->cmg == -1) /* channel measurements not available */
- return sprintf(buf, "unknown\n");
- return sprintf(buf, "%d\n", chp->cmg);
+ return sysfs_emit(buf, "unknown\n");
+ return sysfs_emit(buf, "%d\n", chp->cmg);
}
static DEVICE_ATTR(cmg, 0444, chp_cmg_show, NULL);
@@ -338,8 +351,8 @@ static ssize_t chp_shared_show(struct device *dev,
if (!chp)
return 0;
if (chp->shared == -1) /* channel measurements not available */
- return sprintf(buf, "unknown\n");
- return sprintf(buf, "%x\n", chp->shared);
+ return sysfs_emit(buf, "unknown\n");
+ return sysfs_emit(buf, "%x\n", chp->shared);
}
static DEVICE_ATTR(shared, 0444, chp_shared_show, NULL);
@@ -352,7 +365,7 @@ static ssize_t chp_chid_show(struct device *dev, struct device_attribute *attr,
mutex_lock(&chp->lock);
if (chp->desc_fmt1.flags & 0x10)
- rc = sprintf(buf, "%04x\n", chp->desc_fmt1.chid);
+ rc = sysfs_emit(buf, "%04x\n", chp->desc_fmt1.chid);
else
rc = 0;
mutex_unlock(&chp->lock);
@@ -369,7 +382,7 @@ static ssize_t chp_chid_external_show(struct device *dev,
mutex_lock(&chp->lock);
if (chp->desc_fmt1.flags & 0x10)
- rc = sprintf(buf, "%x\n", chp->desc_fmt1.flags & 0x8 ? 1 : 0);
+ rc = sysfs_emit(buf, "%x\n", chp->desc_fmt1.flags & 0x8 ? 1 : 0);
else
rc = 0;
mutex_unlock(&chp->lock);
@@ -385,7 +398,7 @@ static ssize_t chp_esc_show(struct device *dev,
ssize_t rc;
mutex_lock(&chp->lock);
- rc = sprintf(buf, "%x\n", chp->desc_fmt1.esc);
+ rc = sysfs_emit(buf, "%x\n", chp->desc_fmt1.esc);
mutex_unlock(&chp->lock);
return rc;
diff --git a/drivers/s390/cio/chp.h b/drivers/s390/cio/chp.h
index a15324a43aa3..391b52a7474c 100644
--- a/drivers/s390/cio/chp.h
+++ b/drivers/s390/cio/chp.h
@@ -54,6 +54,7 @@ struct channel_path {
int extended;
unsigned long speed;
struct cmg_chars cmg_chars;
+ struct cmg_cmcb cmcb;
};
/* Return channel_path struct for given chpid. */
diff --git a/drivers/s390/cio/chsc.c b/drivers/s390/cio/chsc.c
index dcc1e1c34ca2..e6462317abd0 100644
--- a/drivers/s390/cio/chsc.c
+++ b/drivers/s390/cio/chsc.c
@@ -376,7 +376,7 @@ struct lir {
#define PARAMS_LEN 10 /* PARAMS=xx,xxxxxx */
#define NODEID_LEN 35 /* NODEID=tttttt/mdl,mmm.ppssssssssssss,xxxx */
-/* Copy EBCIDC text, convert to ASCII and optionally add delimiter. */
+/* Copy EBCDIC text, convert to ASCII and optionally add delimiter. */
static char *store_ebcdic(char *dest, const char *src, unsigned long len,
char delim)
{
@@ -1092,19 +1092,7 @@ int chsc_get_channel_measurement_chars(struct channel_path *chp)
u32 zeroes1;
struct chsc_header response;
u32 zeroes2;
- u32 not_valid : 1;
- u32 shared : 1;
- u32 extended : 1;
- u32 : 21;
- u32 chpid : 8;
- u32 cmcv : 5;
- u32 : 7;
- u32 cmgp : 4;
- u32 cmgq : 8;
- u32 cmg : 8;
- u32 : 16;
- u32 cmgs : 16;
- u32 data[NR_MEASUREMENT_CHARS];
+ struct cmg_cmcb cmcb;
} *scmc_area;
chp->shared = -1;
@@ -1135,15 +1123,16 @@ int chsc_get_channel_measurement_chars(struct channel_path *chp)
scmc_area->response.code);
goto out;
}
- if (scmc_area->not_valid)
+ chp->cmcb = scmc_area->cmcb;
+ if (scmc_area->cmcb.not_valid)
goto out;
- chp->cmg = scmc_area->cmg;
- chp->shared = scmc_area->shared;
- chp->extended = scmc_area->extended;
- chp->speed = scmc_get_speed(scmc_area->cmgs, scmc_area->cmgp);
- chsc_initialize_cmg_chars(chp, scmc_area->cmcv,
- (struct cmg_chars *) &scmc_area->data);
+ chp->cmg = scmc_area->cmcb.cmg;
+ chp->shared = scmc_area->cmcb.shared;
+ chp->extended = scmc_area->cmcb.extended;
+ chp->speed = scmc_get_speed(scmc_area->cmcb.cmgs, scmc_area->cmcb.cmgp);
+ chsc_initialize_cmg_chars(chp, scmc_area->cmcb.cmcv,
+ (struct cmg_chars *)&scmc_area->cmcb.data);
out:
spin_unlock_irqrestore(&chsc_page_lock, flags);
return ret;
diff --git a/drivers/s390/cio/chsc.h b/drivers/s390/cio/chsc.h
index 24cd65dbc5a7..6fe983ebf4b3 100644
--- a/drivers/s390/cio/chsc.h
+++ b/drivers/s390/cio/chsc.h
@@ -17,6 +17,22 @@ struct cmg_chars {
u32 values[NR_MEASUREMENT_CHARS];
};
+struct cmg_cmcb {
+ u32 not_valid : 1;
+ u32 shared : 1;
+ u32 extended : 1;
+ u32 : 21;
+ u32 chpid : 8;
+ u32 cmcv : 5;
+ u32 : 7;
+ u32 cmgp : 4;
+ u32 cmgq : 8;
+ u32 cmg : 8;
+ u32 : 16;
+ u32 cmgs : 16;
+ u32 data[NR_MEASUREMENT_CHARS];
+};
+
#define NR_MEASUREMENT_ENTRIES 8
struct cmg_entry {
u32 values[NR_MEASUREMENT_ENTRIES];
diff --git a/drivers/s390/cio/cio.c b/drivers/s390/cio/cio.c
index c32e818f06db..ad17ab0a9314 100644
--- a/drivers/s390/cio/cio.c
+++ b/drivers/s390/cio/cio.c
@@ -459,10 +459,14 @@ int cio_update_schib(struct subchannel *sch)
{
struct schib schib;
- if (stsch(sch->schid, &schib) || !css_sch_is_valid(&schib))
+ if (stsch(sch->schid, &schib))
return -ENODEV;
memcpy(&sch->schib, &schib, sizeof(schib));
+
+ if (!css_sch_is_valid(&schib))
+ return -EACCES;
+
return 0;
}
EXPORT_SYMBOL_GPL(cio_update_schib);
diff --git a/drivers/s390/cio/cio.h b/drivers/s390/cio/cio.h
index a9057a5b670a..08a5e9380e75 100644
--- a/drivers/s390/cio/cio.h
+++ b/drivers/s390/cio/cio.h
@@ -19,7 +19,7 @@ struct pmcw {
u32 intparm; /* interruption parameter */
u32 qf : 1; /* qdio facility */
u32 w : 1;
- u32 isc : 3; /* interruption sublass */
+ u32 isc : 3; /* interruption subclass */
u32 res5 : 3; /* reserved zeros */
u32 ena : 1; /* enabled */
u32 lm : 2; /* limit mode */
diff --git a/drivers/s390/cio/cmf.c b/drivers/s390/cio/cmf.c
index f80dc18e2a76..fdab760f1f28 100644
--- a/drivers/s390/cio/cmf.c
+++ b/drivers/s390/cio/cmf.c
@@ -46,7 +46,7 @@
/* indices for READCMB */
enum cmb_index {
avg_utilization = -1,
- /* basic and exended format: */
+ /* basic and extended format: */
cmb_ssch_rsch_count = 0,
cmb_sample_count,
cmb_device_connect_time,
@@ -135,7 +135,7 @@ static inline u64 time_to_nsec(u32 value)
* Users are usually interested in average times,
* not accumulated time.
* This also helps us with atomicity problems
- * when reading sinlge values.
+ * when reading single values.
*/
static inline u64 time_to_avg_nsec(u32 value, u32 count)
{
@@ -977,8 +977,7 @@ static struct cmb_operations cmbops_extended = {
static ssize_t cmb_show_attr(struct device *dev, char *buf, enum cmb_index idx)
{
- return sprintf(buf, "%lld\n",
- (unsigned long long) cmf_read(to_ccwdev(dev), idx));
+ return sysfs_emit(buf, "%lld\n", cmf_read(to_ccwdev(dev), idx));
}
static ssize_t cmb_show_avg_sample_interval(struct device *dev,
@@ -998,7 +997,7 @@ static ssize_t cmb_show_avg_sample_interval(struct device *dev,
} else
interval = -1;
spin_unlock_irq(cdev->ccwlock);
- return sprintf(buf, "%ld\n", interval);
+ return sysfs_emit(buf, "%ld\n", interval);
}
static ssize_t cmb_show_avg_utilization(struct device *dev,
@@ -1007,7 +1006,7 @@ static ssize_t cmb_show_avg_utilization(struct device *dev,
{
unsigned long u = cmf_read(to_ccwdev(dev), avg_utilization);
- return sprintf(buf, "%02lu.%01lu%%\n", u / 10, u % 10);
+ return sysfs_emit(buf, "%02lu.%01lu%%\n", u / 10, u % 10);
}
#define cmf_attr(name) \
@@ -1080,7 +1079,7 @@ static ssize_t cmb_enable_show(struct device *dev,
{
struct ccw_device *cdev = to_ccwdev(dev);
- return sprintf(buf, "%d\n", cmf_enabled(cdev));
+ return sysfs_emit(buf, "%d\n", cmf_enabled(cdev));
}
static ssize_t cmb_enable_store(struct device *dev,
@@ -1227,7 +1226,7 @@ int cmf_readall(struct ccw_device *cdev, struct cmbdata *data)
return cmbops->readall(cdev, data);
}
-/* Reenable cmf when a disconnected device becomes available again. */
+/* Re-enable cmf when a disconnected device becomes available again. */
int cmf_reenable(struct ccw_device *cdev)
{
cmbops->reset(cdev);
diff --git a/drivers/s390/cio/css.c b/drivers/s390/cio/css.c
index 7b59d20bf785..be78a57f9bfd 100644
--- a/drivers/s390/cio/css.c
+++ b/drivers/s390/cio/css.c
@@ -380,11 +380,11 @@ static ssize_t chpids_show(struct device *dev,
for (chp = 0; chp < 8; chp++) {
mask = 0x80 >> chp;
if (ssd->path_mask & mask)
- ret += sprintf(buf + ret, "%02x ", ssd->chpid[chp].id);
+ ret += sysfs_emit_at(buf, ret, "%02x ", ssd->chpid[chp].id);
else
- ret += sprintf(buf + ret, "00 ");
+ ret += sysfs_emit_at(buf, ret, "00 ");
}
- ret += sprintf(buf + ret, "\n");
+ ret += sysfs_emit_at(buf, ret, "\n");
return ret;
}
static DEVICE_ATTR_RO(chpids);
diff --git a/drivers/s390/cio/device.c b/drivers/s390/cio/device.c
index b0f23242e171..fb2c07cb4d3d 100644
--- a/drivers/s390/cio/device.c
+++ b/drivers/s390/cio/device.c
@@ -201,10 +201,9 @@ devtype_show (struct device *dev, struct device_attribute *attr, char *buf)
struct ccw_device_id *id = &(cdev->id);
if (id->dev_type != 0)
- return sprintf(buf, "%04x/%02x\n",
- id->dev_type, id->dev_model);
+ return sysfs_emit(buf, "%04x/%02x\n", id->dev_type, id->dev_model);
else
- return sprintf(buf, "n/a\n");
+ return sysfs_emit(buf, "n/a\n");
}
static ssize_t
@@ -213,8 +212,7 @@ cutype_show (struct device *dev, struct device_attribute *attr, char *buf)
struct ccw_device *cdev = to_ccwdev(dev);
struct ccw_device_id *id = &(cdev->id);
- return sprintf(buf, "%04x/%02x\n",
- id->cu_type, id->cu_model);
+ return sysfs_emit(buf, "%04x/%02x\n", id->cu_type, id->cu_model);
}
static ssize_t
@@ -234,7 +232,7 @@ online_show (struct device *dev, struct device_attribute *attr, char *buf)
{
struct ccw_device *cdev = to_ccwdev(dev);
- return sprintf(buf, cdev->online ? "1\n" : "0\n");
+ return sysfs_emit(buf, cdev->online ? "1\n" : "0\n");
}
int ccw_device_is_orphan(struct ccw_device *cdev)
@@ -546,21 +544,21 @@ available_show (struct device *dev, struct device_attribute *attr, char *buf)
struct subchannel *sch;
if (ccw_device_is_orphan(cdev))
- return sprintf(buf, "no device\n");
+ return sysfs_emit(buf, "no device\n");
switch (cdev->private->state) {
case DEV_STATE_BOXED:
- return sprintf(buf, "boxed\n");
+ return sysfs_emit(buf, "boxed\n");
case DEV_STATE_DISCONNECTED:
case DEV_STATE_DISCONNECTED_SENSE_ID:
case DEV_STATE_NOT_OPER:
sch = to_subchannel(dev->parent);
if (!sch->lpm)
- return sprintf(buf, "no path\n");
+ return sysfs_emit(buf, "no path\n");
else
- return sprintf(buf, "no device\n");
+ return sysfs_emit(buf, "no device\n");
default:
/* All other states considered fine. */
- return sprintf(buf, "good\n");
+ return sysfs_emit(buf, "good\n");
}
}
@@ -587,7 +585,7 @@ static ssize_t vpm_show(struct device *dev, struct device_attribute *attr,
{
struct subchannel *sch = to_subchannel(dev);
- return sprintf(buf, "%02x\n", sch->vpm);
+ return sysfs_emit(buf, "%02x\n", sch->vpm);
}
static DEVICE_ATTR_RO(devtype);
@@ -1387,14 +1385,18 @@ enum io_sch_action {
IO_SCH_VERIFY,
IO_SCH_DISC,
IO_SCH_NOP,
+ IO_SCH_ORPH_CDEV,
};
static enum io_sch_action sch_get_action(struct subchannel *sch)
{
struct ccw_device *cdev;
+ int rc;
cdev = sch_get_cdev(sch);
- if (cio_update_schib(sch)) {
+ rc = cio_update_schib(sch);
+
+ if (rc == -ENODEV) {
/* Not operational. */
if (!cdev)
return IO_SCH_UNREG;
@@ -1402,6 +1404,16 @@ static enum io_sch_action sch_get_action(struct subchannel *sch)
return IO_SCH_UNREG;
return IO_SCH_ORPH_UNREG;
}
+
+ /* Avoid unregistering subchannels without working device. */
+ if (rc == -EACCES) {
+ if (!cdev)
+ return IO_SCH_NOP;
+ if (ccw_device_notify(cdev, CIO_GONE) != NOTIFY_OK)
+ return IO_SCH_UNREG_CDEV;
+ return IO_SCH_ORPH_CDEV;
+ }
+
/* Operational. */
if (!cdev)
return IO_SCH_ATTACH;
@@ -1471,6 +1483,7 @@ static int io_subchannel_sch_event(struct subchannel *sch, int process)
rc = 0;
goto out_unlock;
case IO_SCH_ORPH_UNREG:
+ case IO_SCH_ORPH_CDEV:
case IO_SCH_ORPH_ATTACH:
ccw_device_set_disconnected(cdev);
break;
@@ -1502,6 +1515,7 @@ static int io_subchannel_sch_event(struct subchannel *sch, int process)
/* Handle attached ccw device. */
switch (action) {
case IO_SCH_ORPH_UNREG:
+ case IO_SCH_ORPH_CDEV:
case IO_SCH_ORPH_ATTACH:
/* Move ccw device to orphanage. */
rc = ccw_device_move_to_orph(cdev);
diff --git a/drivers/s390/cio/ioasm.c b/drivers/s390/cio/ioasm.c
index acf1edd36549..5ff1e51cddf3 100644
--- a/drivers/s390/cio/ioasm.c
+++ b/drivers/s390/cio/ioasm.c
@@ -8,6 +8,7 @@
#include <asm/asm-extable.h>
#include <asm/chpid.h>
#include <asm/schid.h>
+#include <asm/asm.h>
#include <asm/crw.h>
#include "ioasm.h"
@@ -18,19 +19,20 @@
static inline int __stsch(struct subchannel_id schid, struct schib *addr)
{
unsigned long r1 = *(unsigned int *)&schid;
- int ccode = -EIO;
+ int ccode, exception;
+ exception = 1;
asm volatile(
" lgr 1,%[r1]\n"
" stsch %[addr]\n"
- "0: ipm %[cc]\n"
- " srl %[cc],28\n"
+ "0: lhi %[exc],0\n"
"1:\n"
+ CC_IPM(cc)
EX_TABLE(0b, 1b)
- : [cc] "+&d" (ccode), [addr] "=Q" (*addr)
+ : CC_OUT(cc, ccode), [addr] "=Q" (*addr), [exc] "+d" (exception)
: [r1] "d" (r1)
- : "cc", "1");
- return ccode;
+ : CC_CLOBBER_LIST("1"));
+ return exception ? -EIO : CC_TRANSFORM(ccode);
}
int stsch(struct subchannel_id schid, struct schib *addr)
@@ -47,19 +49,20 @@ EXPORT_SYMBOL(stsch);
static inline int __msch(struct subchannel_id schid, struct schib *addr)
{
unsigned long r1 = *(unsigned int *)&schid;
- int ccode = -EIO;
+ int ccode, exception;
+ exception = 1;
asm volatile(
" lgr 1,%[r1]\n"
" msch %[addr]\n"
- "0: ipm %[cc]\n"
- " srl %[cc],28\n"
+ "0: lhi %[exc],0\n"
"1:\n"
+ CC_IPM(cc)
EX_TABLE(0b, 1b)
- : [cc] "+&d" (ccode)
+ : CC_OUT(cc, ccode), [exc] "+d" (exception)
: [r1] "d" (r1), [addr] "Q" (*addr)
- : "cc", "1");
- return ccode;
+ : CC_CLOBBER_LIST("1"));
+ return exception ? -EIO : CC_TRANSFORM(ccode);
}
int msch(struct subchannel_id schid, struct schib *addr)
@@ -80,12 +83,11 @@ static inline int __tsch(struct subchannel_id schid, struct irb *addr)
asm volatile(
" lgr 1,%[r1]\n"
" tsch %[addr]\n"
- " ipm %[cc]\n"
- " srl %[cc],28"
- : [cc] "=&d" (ccode), [addr] "=Q" (*addr)
+ CC_IPM(cc)
+ : CC_OUT(cc, ccode), [addr] "=Q" (*addr)
: [r1] "d" (r1)
- : "cc", "1");
- return ccode;
+ : CC_CLOBBER_LIST("1"));
+ return CC_TRANSFORM(ccode);
}
int tsch(struct subchannel_id schid, struct irb *addr)
@@ -101,19 +103,20 @@ int tsch(struct subchannel_id schid, struct irb *addr)
static inline int __ssch(struct subchannel_id schid, union orb *addr)
{
unsigned long r1 = *(unsigned int *)&schid;
- int ccode = -EIO;
+ int ccode, exception;
+ exception = 1;
asm volatile(
" lgr 1,%[r1]\n"
" ssch %[addr]\n"
- "0: ipm %[cc]\n"
- " srl %[cc],28\n"
+ "0: lhi %[exc],0\n"
"1:\n"
+ CC_IPM(cc)
EX_TABLE(0b, 1b)
- : [cc] "+&d" (ccode)
+ : CC_OUT(cc, ccode), [exc] "+d" (exception)
: [r1] "d" (r1), [addr] "Q" (*addr)
- : "cc", "memory", "1");
- return ccode;
+ : CC_CLOBBER_LIST("memory", "1"));
+ return CC_TRANSFORM(ccode);
}
int ssch(struct subchannel_id schid, union orb *addr)
@@ -135,12 +138,11 @@ static inline int __csch(struct subchannel_id schid)
asm volatile(
" lgr 1,%[r1]\n"
" csch\n"
- " ipm %[cc]\n"
- " srl %[cc],28\n"
- : [cc] "=&d" (ccode)
+ CC_IPM(cc)
+ : CC_OUT(cc, ccode)
: [r1] "d" (r1)
- : "cc", "1");
- return ccode;
+ : CC_CLOBBER_LIST("1"));
+ return CC_TRANSFORM(ccode);
}
int csch(struct subchannel_id schid)
@@ -160,11 +162,11 @@ int tpi(struct tpi_info *addr)
asm volatile(
" tpi %[addr]\n"
- " ipm %[cc]\n"
- " srl %[cc],28"
- : [cc] "=&d" (ccode), [addr] "=Q" (*addr)
+ CC_IPM(cc)
+ : CC_OUT(cc, ccode), [addr] "=Q" (*addr)
:
- : "cc");
+ : CC_CLOBBER);
+ ccode = CC_TRANSFORM(ccode);
trace_s390_cio_tpi(addr, ccode);
return ccode;
@@ -173,17 +175,19 @@ int tpi(struct tpi_info *addr)
int chsc(void *chsc_area)
{
typedef struct { char _[4096]; } addr_type;
- int cc = -EIO;
+ int cc, exception;
+ exception = 1;
asm volatile(
" .insn rre,0xb25f0000,%[chsc_area],0\n"
- "0: ipm %[cc]\n"
- " srl %[cc],28\n"
+ "0: lhi %[exc],0\n"
"1:\n"
+ CC_IPM(cc)
EX_TABLE(0b, 1b)
- : [cc] "+&d" (cc), "+m" (*(addr_type *)chsc_area)
+ : CC_OUT(cc, cc), "+m" (*(addr_type *)chsc_area), [exc] "+d" (exception)
: [chsc_area] "d" (chsc_area)
- : "cc");
+ : CC_CLOBBER);
+ cc = exception ? -EIO : CC_TRANSFORM(cc);
trace_s390_cio_chsc(chsc_area, cc);
return cc;
@@ -198,12 +202,11 @@ static inline int __rsch(struct subchannel_id schid)
asm volatile(
" lgr 1,%[r1]\n"
" rsch\n"
- " ipm %[cc]\n"
- " srl %[cc],28\n"
- : [cc] "=&d" (ccode)
+ CC_IPM(cc)
+ : CC_OUT(cc, ccode)
: [r1] "d" (r1)
- : "cc", "memory", "1");
- return ccode;
+ : CC_CLOBBER_LIST("memory", "1"));
+ return CC_TRANSFORM(ccode);
}
int rsch(struct subchannel_id schid)
@@ -224,12 +227,11 @@ static inline int __hsch(struct subchannel_id schid)
asm volatile(
" lgr 1,%[r1]\n"
" hsch\n"
- " ipm %[cc]\n"
- " srl %[cc],28\n"
- : [cc] "=&d" (ccode)
+ CC_IPM(cc)
+ : CC_OUT(cc, ccode)
: [r1] "d" (r1)
- : "cc", "1");
- return ccode;
+ : CC_CLOBBER_LIST("1"));
+ return CC_TRANSFORM(ccode);
}
int hsch(struct subchannel_id schid)
@@ -256,7 +258,7 @@ static inline int __xsch(struct subchannel_id schid)
: [cc] "=&d" (ccode)
: [r1] "d" (r1)
: "cc", "1");
- return ccode;
+ return CC_TRANSFORM(ccode);
}
int xsch(struct subchannel_id schid)
@@ -275,12 +277,11 @@ static inline int __stcrw(struct crw *crw)
asm volatile(
" stcrw %[crw]\n"
- " ipm %[cc]\n"
- " srl %[cc],28\n"
- : [cc] "=&d" (ccode), [crw] "=Q" (*crw)
+ CC_IPM(cc)
+ : CC_OUT(cc, ccode), [crw] "=Q" (*crw)
:
- : "cc");
- return ccode;
+ : CC_CLOBBER);
+ return CC_TRANSFORM(ccode);
}
static inline int _stcrw(struct crw *crw)
diff --git a/drivers/s390/cio/qdio_main.c b/drivers/s390/cio/qdio_main.c
index b711bb17f9da..07e82816b77a 100644
--- a/drivers/s390/cio/qdio_main.c
+++ b/drivers/s390/cio/qdio_main.c
@@ -17,6 +17,7 @@
#include <linux/atomic.h>
#include <asm/debug.h>
#include <asm/qdio.h>
+#include <asm/asm.h>
#include <asm/ipl.h>
#include "cio.h"
@@ -42,13 +43,12 @@ static inline int do_siga_sync(unsigned long schid,
" lgr 2,%[out]\n"
" lgr 3,%[in]\n"
" siga 0\n"
- " ipm %[cc]\n"
- " srl %[cc],28\n"
- : [cc] "=&d" (cc)
+ CC_IPM(cc)
+ : CC_OUT(cc, cc)
: [fc] "d" (fc), [schid] "d" (schid),
[out] "d" (out_mask), [in] "d" (in_mask)
- : "cc", "0", "1", "2", "3");
- return cc;
+ : CC_CLOBBER_LIST("0", "1", "2", "3"));
+ return CC_TRANSFORM(cc);
}
static inline int do_siga_input(unsigned long schid, unsigned long mask,
@@ -61,12 +61,11 @@ static inline int do_siga_input(unsigned long schid, unsigned long mask,
" lgr 1,%[schid]\n"
" lgr 2,%[mask]\n"
" siga 0\n"
- " ipm %[cc]\n"
- " srl %[cc],28\n"
- : [cc] "=&d" (cc)
+ CC_IPM(cc)
+ : CC_OUT(cc, cc)
: [fc] "d" (fc), [schid] "d" (schid), [mask] "d" (mask)
- : "cc", "0", "1", "2");
- return cc;
+ : CC_CLOBBER_LIST("0", "1", "2"));
+ return CC_TRANSFORM(cc);
}
/**
@@ -93,13 +92,12 @@ static inline int do_siga_output(unsigned long schid, unsigned long mask,
" lgr 3,%[aob]\n"
" siga 0\n"
" lgr %[fc],0\n"
- " ipm %[cc]\n"
- " srl %[cc],28\n"
- : [cc] "=&d" (cc), [fc] "+&d" (fc)
+ CC_IPM(cc)
+ : CC_OUT(cc, cc), [fc] "+&d" (fc)
: [schid] "d" (schid), [mask] "d" (mask), [aob] "d" (aob)
- : "cc", "0", "1", "2", "3");
+ : CC_CLOBBER_LIST("0", "1", "2", "3"));
*bb = fc >> 31;
- return cc;
+ return CC_TRANSFORM(cc);
}
/**
diff --git a/drivers/s390/cio/scm.c b/drivers/s390/cio/scm.c
index c7894d61306d..a0825e372d42 100644
--- a/drivers/s390/cio/scm.c
+++ b/drivers/s390/cio/scm.c
@@ -91,7 +91,7 @@ static ssize_t show_##name(struct device *dev, \
int ret; \
\
device_lock(dev); \
- ret = sprintf(buf, "%u\n", scmdev->attrs.name); \
+ ret = sysfs_emit(buf, "%u\n", scmdev->attrs.name); \
device_unlock(dev); \
\
return ret; \
generated by cgit v1.2.3-70-g09d2 (git 2.47.1) at 2025-01-14 12:04:01 +0000