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

* 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6:
  [S390] define KTIME_SCALAR for 32-bit s390
  [S390] add generic atomic64 support for 31 bit
  [S390] improve suspend/resume error messages
  [S390] set SCHED_OMIT_FRAME_POINTER for s390
  [S390] add __ucmpdi2() helper function
  [S390] perf_counter build fix
  [S390] shutdown actions: save/return rc from init function
  [S390] dasd: correct debugfeature sense dump
  [S390] udelay: disable lockdep to avoid false positives
  [S390] monreader: fix dev_set_drvdata conversion
  [S390] sclp: fix compile error for !SCLP_CONSOLE
This commit is contained in:
Linus Torvalds 2009-07-10 19:12:51 -07:00
parent 04eef90c2e 07606309ff
commit eee33abe59
16 changed files with 97 additions and 66 deletions
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8
arch/s390/Kconfig
View File

@ -95,6 +95,11 @@ config S390
select HAVE_ARCH_TRACEHOOK
select INIT_ALL_POSSIBLE
select HAVE_PERF_COUNTERS
select GENERIC_ATOMIC64 if !64BIT
config SCHED_OMIT_FRAME_POINTER
bool
default y
source "init/Kconfig"
@ -116,6 +121,9 @@ config 32BIT
bool
default y if !64BIT
config KTIME_SCALAR
def_bool 32BIT
config SMP
bool "Symmetric multi-processing support"
---help---

7
arch/s390/include/asm/atomic.h
View File

@ -268,7 +268,12 @@ static __inline__ int atomic64_add_unless(atomic64_t *v,
#define atomic64_inc_not_zero(v) atomic64_add_unless((v), 1, 0)
#undef __CSG_LOOP
#endif
#else /* __s390x__ */
#include <asm-generic/atomic64.h>
#endif /* __s390x__ */
#define smp_mb__before_atomic_dec() smp_mb()
#define smp_mb__after_atomic_dec() smp_mb()

2
arch/s390/include/asm/perf_counter.h
View File

@ -6,3 +6,5 @@
static inline void set_perf_counter_pending(void) {}
static inline void clear_perf_counter_pending(void) {}
#define PERF_COUNTER_INDEX_OFFSET 0

15
arch/s390/kernel/ipl.c
View File

@ -70,6 +70,7 @@ struct shutdown_action {
char *name;
void (*fn) (struct shutdown_trigger *trigger);
int (*init) (void);
int init_rc;
};
static char *ipl_type_str(enum ipl_type type)
@ -1486,11 +1487,13 @@ static int set_trigger(const char *buf, struct shutdown_trigger *trigger,
int i;
for (i = 0; i < SHUTDOWN_ACTIONS_COUNT; i++) {
if (!shutdown_actions_list[i])
continue;
if (sysfs_streq(buf, shutdown_actions_list[i]->name)) {
trigger->action = shutdown_actions_list[i];
return len;
if (shutdown_actions_list[i]->init_rc) {
return shutdown_actions_list[i]->init_rc;
} else {
trigger->action = shutdown_actions_list[i];
return len;
}
}
}
return -EINVAL;
@ -1640,8 +1643,8 @@ static void __init shutdown_actions_init(void)
for (i = 0; i < SHUTDOWN_ACTIONS_COUNT; i++) {
if (!shutdown_actions_list[i]->init)
continue;
if (shutdown_actions_list[i]->init())
shutdown_actions_list[i] = NULL;
shutdown_actions_list[i]->init_rc =
shutdown_actions_list[i]->init();
}
}

2
arch/s390/lib/Makefile
View File

@ -3,6 +3,6 @@
#
lib-y += delay.o string.o uaccess_std.o uaccess_pt.o
obj-$(CONFIG_32BIT) += div64.o qrnnd.o
obj-$(CONFIG_32BIT) += div64.o qrnnd.o ucmpdi2.o
lib-$(CONFIG_64BIT) += uaccess_mvcos.o
lib-$(CONFIG_SMP) += spinlock.o

2
arch/s390/lib/delay.c
View File

@ -36,9 +36,11 @@ static void __udelay_disabled(unsigned long usecs)
cr0 = (cr0_saved & 0xffff00e0) | 0x00000800;
__ctl_load(cr0 , 0, 0);
mask = psw_kernel_bits | PSW_MASK_WAIT | PSW_MASK_EXT;
lockdep_off();
trace_hardirqs_on();
__load_psw_mask(mask);
local_irq_disable();
lockdep_on();
__ctl_load(cr0_saved, 0, 0);
local_tick_enable(clock_saved);
set_clock_comparator(S390_lowcore.clock_comparator);

26
arch/s390/lib/ucmpdi2.c Normal file
View File

@ -0,0 +1,26 @@
#include <linux/module.h>
union ull_union {
unsigned long long ull;
struct {
unsigned int high;
unsigned int low;
} ui;
};
int __ucmpdi2(unsigned long long a, unsigned long long b)
{
union ull_union au = {.ull = a};
union ull_union bu = {.ull = b};
if (au.ui.high < bu.ui.high)
return 0;
else if (au.ui.high > bu.ui.high)
return 2;
if (au.ui.low < bu.ui.low)
return 0;
else if (au.ui.low > bu.ui.low)
return 2;
return 1;
}
EXPORT_SYMBOL(__ucmpdi2);

45
drivers/s390/block/dasd_eckd.c
View File

@ -1696,8 +1696,7 @@ static void dasd_eckd_handle_unsolicited_interrupt(struct dasd_device *device,
DBF_DEV_EVENT(DBF_ERR, device, "%s",
"unsolicited interrupt received "
"(sense available)");
device->discipline->dump_sense_dbf(device, NULL, irb,
"unsolicited");
device->discipline->dump_sense_dbf(device, irb, "unsolicited");
}
dasd_schedule_device_bh(device);
@ -2941,42 +2940,20 @@ dasd_eckd_dump_ccw_range(struct ccw1 *from, struct ccw1 *to, char *page)
}
static void
dasd_eckd_dump_sense_dbf(struct dasd_device *device, struct dasd_ccw_req *req,
struct irb *irb, char *reason)
dasd_eckd_dump_sense_dbf(struct dasd_device *device, struct irb *irb,
char *reason)
{
u64 *sense;
int sl;
struct tsb *tsb;
sense = NULL;
tsb = NULL;
if (req && scsw_is_tm(&req->irb.scsw)) {
if (irb->scsw.tm.tcw)
tsb = tcw_get_tsb(
(struct tcw *)(unsigned long)irb->scsw.tm.tcw);
if (tsb && (irb->scsw.tm.fcxs == 0x01)) {
switch (tsb->flags & 0x07) {
case 1: /* tsa_iostat */
sense = (u64 *)tsb->tsa.iostat.sense;
break;
case 2: /* ts_ddpc */
sense = (u64 *)tsb->tsa.ddpc.sense;
break;
case 3: /* tsa_intrg */
break;
}
}
} else {
if (irb->esw.esw0.erw.cons)
sense = (u64 *)irb->ecw;
}
sense = (u64 *) dasd_get_sense(irb);
if (sense) {
for (sl = 0; sl < 4; sl++) {
DBF_DEV_EVENT(DBF_EMERG, device,
"%s: %016llx %016llx %016llx %016llx",
reason, sense[0], sense[1], sense[2],
sense[3]);
}
DBF_DEV_EVENT(DBF_EMERG, device,
"%s: %s %02x%02x%02x %016llx %016llx %016llx "
"%016llx", reason,
scsw_is_tm(&irb->scsw) ? "t" : "c",
scsw_cc(&irb->scsw), scsw_cstat(&irb->scsw),
scsw_dstat(&irb->scsw), sense[0], sense[1],
sense[2], sense[3]);
} else {
DBF_DEV_EVENT(DBF_EMERG, device, "%s",
"SORRY - NO VALID SENSE AVAILABLE\n");

2
drivers/s390/block/dasd_erp.c
View File

@ -172,7 +172,7 @@ dasd_log_sense_dbf(struct dasd_ccw_req *cqr, struct irb *irb)
device = cqr->startdev;
/* dump sense data to s390 debugfeature*/
if (device->discipline && device->discipline->dump_sense_dbf)
device->discipline->dump_sense_dbf(device, cqr, irb, "log");
device->discipline->dump_sense_dbf(device, irb, "log");
}
EXPORT_SYMBOL(dasd_log_sense_dbf);

25
drivers/s390/block/dasd_fba.c
View File

@ -241,7 +241,7 @@ static void dasd_fba_handle_unsolicited_interrupt(struct dasd_device *device,
/* check for unsolicited interrupts */
DBF_DEV_EVENT(DBF_WARNING, device, "%s",
"unsolicited interrupt received");
device->discipline->dump_sense_dbf(device, NULL, irb, "unsolicited");
device->discipline->dump_sense_dbf(device, irb, "unsolicited");
dasd_schedule_device_bh(device);
return;
};
@ -444,17 +444,20 @@ dasd_fba_fill_info(struct dasd_device * device,
}
static void
dasd_fba_dump_sense_dbf(struct dasd_device *device, struct dasd_ccw_req *req,
struct irb *irb, char *reason)
dasd_fba_dump_sense_dbf(struct dasd_device *device, struct irb *irb,
char *reason)
{
int sl;
if (irb->esw.esw0.erw.cons) {
for (sl = 0; sl < 4; sl++) {
DBF_DEV_EVENT(DBF_EMERG, device,
"%s: %08x %08x %08x %08x",
reason, irb->ecw[8 * 0], irb->ecw[8 * 1],
irb->ecw[8 * 2], irb->ecw[8 * 3]);
}
u64 *sense;
sense = (u64 *) dasd_get_sense(irb);
if (sense) {
DBF_DEV_EVENT(DBF_EMERG, device,
"%s: %s %02x%02x%02x %016llx %016llx %016llx "
"%016llx", reason,
scsw_is_tm(&irb->scsw) ? "t" : "c",
scsw_cc(&irb->scsw), scsw_cstat(&irb->scsw),
scsw_dstat(&irb->scsw), sense[0], sense[1],
sense[2], sense[3]);
} else {
DBF_DEV_EVENT(DBF_EMERG, device, "%s",
"SORRY - NO VALID SENSE AVAILABLE\n");

3
drivers/s390/block/dasd_int.h
View File

@ -284,8 +284,7 @@ struct dasd_discipline {
dasd_erp_fn_t(*erp_postaction) (struct dasd_ccw_req *);
void (*dump_sense) (struct dasd_device *, struct dasd_ccw_req *,
struct irb *);
void (*dump_sense_dbf) (struct dasd_device *, struct dasd_ccw_req *,
struct irb *, char *);
void (*dump_sense_dbf) (struct dasd_device *, struct irb *, char *);
void (*handle_unsolicited_interrupt) (struct dasd_device *,
struct irb *);

7
drivers/s390/block/dcssblk.c
View File

@ -964,7 +964,8 @@ static int dcssblk_freeze(struct device *dev)
break;
}
if (rc)
pr_err("Suspend failed because device %s is writeable.\n",
pr_err("Suspending the system failed because DCSS device %s "
"is writable\n",
dev_info->segment_name);
return rc;
}
@ -987,8 +988,8 @@ static int dcssblk_restore(struct device *dev)
goto out_panic;
}
if (start != entry->start || end != entry->end) {
pr_err("Mismatch of start / end address after "
"resuming device %s\n",
pr_err("The address range of DCSS %s changed "
"while the system was suspended\n",
entry->segment_name);
goto out_panic;
}

2
drivers/s390/block/xpram.c
View File

@ -443,7 +443,7 @@ fail:
*/
static void xpram_resume_error(const char *message)
{
pr_err("Resume error: %s\n", message);
pr_err("Resuming the system failed: %s\n", message);
panic("xpram resume error\n");
}

4
drivers/s390/char/monreader.c
View File

@ -320,7 +320,7 @@ static int mon_open(struct inode *inode, struct file *filp)
goto out_path;
}
filp->private_data = monpriv;
dev_set_drvdata(&monreader_device, monpriv);
dev_set_drvdata(monreader_device, monpriv);
unlock_kernel();
return nonseekable_open(inode, filp);
@ -463,7 +463,7 @@ static struct miscdevice mon_dev = {
*****************************************************************************/
static int monreader_freeze(struct device *dev)
{
struct mon_private *monpriv = dev_get_drvdata(&dev);
struct mon_private *monpriv = dev_get_drvdata(dev);
int rc;
if (!monpriv)

5
drivers/s390/char/sclp_rw.h
View File

@ -92,5 +92,10 @@ void sclp_set_columns(struct sclp_buffer *, unsigned short);
void sclp_set_htab(struct sclp_buffer *, unsigned short);
int sclp_chars_in_buffer(struct sclp_buffer *);
#ifdef CONFIG_SCLP_CONSOLE
void sclp_console_pm_event(enum sclp_pm_event sclp_pm_event);
#else
static inline void sclp_console_pm_event(enum sclp_pm_event sclp_pm_event) { }
#endif
#endif /* __SCLP_RW_H__ */

8
drivers/s390/char/vmwatchdog.c
View File

@ -250,14 +250,14 @@ static int vmwdt_resume(void)
static int vmwdt_suspend(void)
{
if (test_and_set_bit(VMWDT_OPEN, &vmwdt_is_open)) {
pr_err("The watchdog is in use. "
"This prevents hibernation or suspend.\n");
pr_err("The system cannot be suspended while the watchdog"
" is in use\n");
return NOTIFY_BAD;
}
if (test_bit(VMWDT_RUNNING, &vmwdt_is_open)) {
clear_bit(VMWDT_OPEN, &vmwdt_is_open);
pr_err("The watchdog is running. "
"This prevents hibernation or suspend.\n");
pr_err("The system cannot be suspended while the watchdog"
" is running\n");
return NOTIFY_BAD;
}
return NOTIFY_DONE;