linux-toradex.git/arch/m32r/kernel/time.c, branch v3.4.78

m32r: Switch from do_timer() to xtime_update()

2011-01-31T13:55:45+00:00

xtime_update() does proper locking.

Signed-off-by: Torben Hohn 
Cc: Peter Zijlstra 
Cc: johnstul@us.ibm.com
Cc: Hirokazu Takata 
Cc: hch@infradead.org
Cc: yong.zhang0@gmail.com
LKML-Reference: <20110127150001.23248.68620.stgit@localhost>
Signed-off-by: Thomas Gleixner

m32r: Convert m32r to use read/update_peristent_clock

2010-03-13T00:14:12+00:00

This patch converts the m32r architecture to use the generic
read_persistent_clock and update_persistent_clock interfaces, reducing
the amount of arch specific code we have to maintain, and allowing for
further cleanups in the future.

I have not built or tested this patch, so help from arch maintainers
would be appreciated.

Signed-off-by: John Stultz 
Cc: Hirokazu Takata 
Cc: Andrew Morton 
LKML-Reference: <1267675049-12337-11-git-send-email-johnstul@us.ibm.com>
Signed-off-by: Thomas Gleixner

arch/m32r: Use DIV_ROUND_CLOSEST

2009-11-03T23:31:50+00:00

The kernel.h macro DIV_ROUND_CLOSEST performs the computation (x + d/2)/d
but is perhaps more readable.

The semantic patch that makes this change is as follows:
(http://www.emn.fr/x-info/coccinelle/)

// 
@haskernel@
@@

@depends on haskernel@
expression x,__divisor;
@@

- (((x) + ((__divisor) / 2)) / (__divisor))
+ DIV_ROUND_CLOSEST(x,__divisor)
// 

Signed-off-by: Julia Lawall 
Signed-off-by: Hirokazu Takata

m32r: add rtc_lock variable

2009-10-04T03:02:36+00:00

Add a spinlock variable "rtc_lock".
This is taken from arch/arm/kernel/time.c.

Signed-off-by: Hirokazu Takata

m32r: convert to use arch_gettimeoffset()

2009-09-22T14:17:43+00:00

Convert m32r to use GENERIC_TIME via the arch_getoffset() infrastructure,
reducing the amount of arch specific code we need to maintain.

I also noted that m32r doesn't seem to be taking the xtime write lock
before calling do_timer()!  That looks like a pretty bad bug to me.  If
folks agree, let me know and I can move the lock grab to the correct spot.

Signed-off-by: John Stultz 
Cc: Hirokazu Takata 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

cpumask: remove references to struct irqaction's mask field.

2009-03-30T11:35:14+00:00

Impact: cleanup

It's unused, since about 1995.  So remove all initialization of it in
preparation for actually removing the field.

Signed-off-by: Rusty Russell 
Acked-by: Thomas Gleixner

m32r/kernel/: cleanups

2008-09-27T09:27:21+00:00

This patch contains the following cleanups:
- make the following needlessly global code static:
  - entry.S: resume_userspace
  - process.c: pm_idle
  - process.c: default_idle()
  - smp.c: send_IPI_allbutself()
  - time.c: timer_interrupt()
  - time.c: struct irq0
  - traps.c: set_eit_vector_entries()
  - traps.c: kstack_depth_to_print
  - traps.c: show_trace()
  - traps.c: die_lock
- remove the following unused code:
  - head.S: startup_32
  - process.c: hlt_counter
  - process.c: disable_hlt()
  - process.c: enable_hlt()
  - process.c: dump_task_regs()
- remove the following variables and their usages since they were
  always 0:
  - irq.c: irq_err_count
  - irq.c: irq_mis_count

Signed-off-by: Adrian Bunk 
Signed-off-by: Andrew Morton 
Signed-off-by: Hirokazu Takata

M32R: cleanup struct irqaction initializers

2007-10-16T16:43:04+00:00

Signed-off-by: Thomas Gleixner 
Cc: Hirokazu Takata 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] Consolidate default sched_clock()

2007-02-11T18:51:28+00:00

Use attribute(weak).

Signed-off-by: Alexey Dobriyan 
Acked-by: Ingo Molnar 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] m32r pt_regs fixes

2006-10-07T17:51:15+00:00

... and now with irq_regs.h not forgotten...

Signed-off-by: Al Viro 
Signed-off-by: Linus Torvalds