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Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

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Pull timer updates from Thomas Gleixner:
 "Rather large, but nothing exiting:

   - new range check for settimeofday() to prevent that boot time
     becomes negative.
   - fix for file time rounding
   - a few simplifications of the hrtimer code
   - fix for the proc/timerlist code so the output of clock realtime
     timers is accurate
   - more y2038 work
   - tree wide conversion of clockevent drivers to the new callbacks"

* 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (88 commits)
  hrtimer: Handle failure of tick_init_highres() gracefully
  hrtimer: Unconfuse switch_hrtimer_base() a bit
  hrtimer: Simplify get_target_base() by returning current base
  hrtimer: Drop return code of hrtimer_switch_to_hres()
  time: Introduce timespec64_to_jiffies()/jiffies_to_timespec64()
  time: Introduce current_kernel_time64()
  time: Introduce struct itimerspec64
  time: Add the common weak version of update_persistent_clock()
  time: Always make sure wall_to_monotonic isn't positive
  time: Fix nanosecond file time rounding in timespec_trunc()
  timer_list: Add the base offset so remaining nsecs are accurate for non monotonic timers
  cris/time: Migrate to new 'set-state' interface
  kernel: broadcast-hrtimer: Migrate to new 'set-state' interface
  xtensa/time: Migrate to new 'set-state' interface
  unicore/time: Migrate to new 'set-state' interface
  um/time: Migrate to new 'set-state' interface
  sparc/time: Migrate to new 'set-state' interface
  sh/localtimer: Migrate to new 'set-state' interface
  score/time: Migrate to new 'set-state' interface
  s390/time: Migrate to new 'set-state' interface
  ...
This commit is contained in:
Linus Torvalds
2015-09-01 14:04:50 -07:00
parent 8d01b66b4f 85e1cd6e76
commit 5e359bf221
80 changed files with 1575 additions and 1681 deletions
Download Patch File Download Diff File Expand all files Collapse all files

65
drivers/clocksource/sh_cmt.c
View File

@@ -538,7 +538,7 @@ static irqreturn_t sh_cmt_interrupt(int irq, void *dev_id)
if (ch->flags & FLAG_CLOCKEVENT) {
if (!(ch->flags & FLAG_SKIPEVENT)) {
if (ch->ced.mode == CLOCK_EVT_MODE_ONESHOT) {
if (clockevent_state_oneshot(&ch->ced)) {
ch->next_match_value = ch->max_match_value;
ch->flags |= FLAG_REPROGRAM;
}
@@ -554,7 +554,7 @@ static irqreturn_t sh_cmt_interrupt(int irq, void *dev_id)
sh_cmt_clock_event_program_verify(ch, 1);
if (ch->flags & FLAG_CLOCKEVENT)
if ((ch->ced.mode == CLOCK_EVT_MODE_SHUTDOWN)
if ((clockevent_state_shutdown(&ch->ced))
|| (ch->match_value == ch->next_match_value))
ch->flags &= ~FLAG_REPROGRAM;
}
@@ -726,39 +726,37 @@ static void sh_cmt_clock_event_start(struct sh_cmt_channel *ch, int periodic)
sh_cmt_set_next(ch, ch->max_match_value);
}
static void sh_cmt_clock_event_mode(enum clock_event_mode mode,
struct clock_event_device *ced)
static int sh_cmt_clock_event_shutdown(struct clock_event_device *ced)
{
struct sh_cmt_channel *ch = ced_to_sh_cmt(ced);
sh_cmt_stop(ch, FLAG_CLOCKEVENT);
return 0;
}
static int sh_cmt_clock_event_set_state(struct clock_event_device *ced,
int periodic)
{
struct sh_cmt_channel *ch = ced_to_sh_cmt(ced);
/* deal with old setting first */
switch (ced->mode) {
case CLOCK_EVT_MODE_PERIODIC:
case CLOCK_EVT_MODE_ONESHOT:
if (clockevent_state_oneshot(ced) || clockevent_state_periodic(ced))
sh_cmt_stop(ch, FLAG_CLOCKEVENT);
break;
default:
break;
}
switch (mode) {
case CLOCK_EVT_MODE_PERIODIC:
dev_info(&ch->cmt->pdev->dev,
"ch%u: used for periodic clock events\n", ch->index);
sh_cmt_clock_event_start(ch, 1);
break;
case CLOCK_EVT_MODE_ONESHOT:
dev_info(&ch->cmt->pdev->dev,
"ch%u: used for oneshot clock events\n", ch->index);
sh_cmt_clock_event_start(ch, 0);
break;
case CLOCK_EVT_MODE_SHUTDOWN:
case CLOCK_EVT_MODE_UNUSED:
sh_cmt_stop(ch, FLAG_CLOCKEVENT);
break;
default:
break;
}
dev_info(&ch->cmt->pdev->dev, "ch%u: used for %s clock events\n",
ch->index, periodic ? "periodic" : "oneshot");
sh_cmt_clock_event_start(ch, periodic);
return 0;
}
static int sh_cmt_clock_event_set_oneshot(struct clock_event_device *ced)
{
return sh_cmt_clock_event_set_state(ced, 0);
}
static int sh_cmt_clock_event_set_periodic(struct clock_event_device *ced)
{
return sh_cmt_clock_event_set_state(ced, 1);
}
static int sh_cmt_clock_event_next(unsigned long delta,
@@ -766,7 +764,7 @@ static int sh_cmt_clock_event_next(unsigned long delta,
{
struct sh_cmt_channel *ch = ced_to_sh_cmt(ced);
BUG_ON(ced->mode != CLOCK_EVT_MODE_ONESHOT);
BUG_ON(!clockevent_state_oneshot(ced));
if (likely(ch->flags & FLAG_IRQCONTEXT))
ch->next_match_value = delta - 1;
else
@@ -820,7 +818,9 @@ static int sh_cmt_register_clockevent(struct sh_cmt_channel *ch,
ced->rating = 125;
ced->cpumask = cpu_possible_mask;
ced->set_next_event = sh_cmt_clock_event_next;
ced->set_mode = sh_cmt_clock_event_mode;
ced->set_state_shutdown = sh_cmt_clock_event_shutdown;
ced->set_state_periodic = sh_cmt_clock_event_set_periodic;
ced->set_state_oneshot = sh_cmt_clock_event_set_oneshot;
ced->suspend = sh_cmt_clock_event_suspend;
ced->resume = sh_cmt_clock_event_resume;
@@ -935,9 +935,6 @@ static int sh_cmt_map_memory(struct sh_cmt_device *cmt)
static const struct platform_device_id sh_cmt_id_table[] = {
{ "sh-cmt-16", (kernel_ulong_t)&sh_cmt_info[SH_CMT_16BIT] },
{ "sh-cmt-32", (kernel_ulong_t)&sh_cmt_info[SH_CMT_32BIT] },
{ "sh-cmt-32-fast", (kernel_ulong_t)&sh_cmt_info[SH_CMT_32BIT_FAST] },
{ "sh-cmt-48", (kernel_ulong_t)&sh_cmt_info[SH_CMT_48BIT] },
{ "sh-cmt-48-gen2", (kernel_ulong_t)&sh_cmt_info[SH_CMT_48BIT_GEN2] },
{ }
};
MODULE_DEVICE_TABLE(platform, sh_cmt_id_table);