linux.git/arch/sparc/kernel/time.c, branch v2.6.26

[SPARC] minor irq handler cleanups

2008-04-20T22:43:05+00:00

- mark timer_interrupt() static

- sparc_floppy_request_irq() prototype should use irq_handler_t

Signed-off-by: Jeff Garzik 
Acked-by: David S. Miller

xtime_lock vs update_process_times

2008-02-13T21:29:25+00:00

Commit d3d74453c34f8fd87674a8cf5b8a327c68f22e99 ("hrtimer: fixup the
HRTIMER_CB_IRQSAFE_NO_SOFTIRQ fallback") broke several archs, and since
only Russell bothered to merge the fix, and Greg to ACK his arch, I'm
sending this for merger.

I have confirmation that the Alpha bit results in a booting kernel.
That leaves: blackfin, frv, sh and sparc untested.

The deadlock in question was found by Russell:

  IRQ handle
    -> timer_tick() - xtime seqlock held for write
      -> update_process_times()
        -> run_local_timers()
          -> hrtimer_run_queues()
            -> hrtimer_get_softirq_time() - tries to get a read lock

Now, Thomas assures me the fix is trivial, only do_timer() needs to be
done under the xtime_lock, and update_process_times() can savely be
removed from under it.

Signed-off-by: Peter Zijlstra 
Acked-by: Greg Ungerer 
CC: Richard Henderson 
CC: Bryan Wu 
CC: David Howells 
CC: Paul Mundt 
CC: William Irwin 
Acked-by: Ingo Molnar 
Acked-by: Ivan Kokshaysky 
Signed-off-by: Linus Torvalds

[SPARC]: Make gettimeofday() monotonic again.

2008-01-13T05:52:15+00:00

When we switched away from the optimized C version
things stopped being monotonic.

The problem is that if we run this with interrupts disabled, we can
see the interrupt pending because the counter reached the limit value.
When this happens the counter has bit 31 set, and the low bits start
counting again from zero.

Reported by Martin Habets.

Signed-off-by: David S. Miller

[SPARC32]: inline --> inline

2007-10-27T07:17:01+00:00

Signed-off-by: David S. Miller

[SPARC/64]: Move of_platform_driver initialisations: arch/sparc{,64}.

2007-10-14T04:53:12+00:00

We no longer initialise the name field of the of_platform_driver, but
use the name field of the embedded device_driver's name field instead.

Signed-off-by: Stephen Rothwell 
Signed-off-by: David S. Miller

[SPARC32]: clean include/asm-sparc/irq.h

2007-07-22T02:18:57+00:00

Move stuff used only by arch/sparc/kernel/* into arch/sparc/kernel/irq.h
and into individual files in there (e.g. macros internal to sun4m_irq.c,
etc.)

Signed-off-by: Al Viro 
Signed-off-by: David S. Miller

[SPARC/64] Rename some functions like PowerPC

2007-07-20T04:24:53+00:00

This is to make the of merge easier.  Also rename of_bus_type.

Signed-off-by: Stephen Rothwell 
Acked-by: David S. Miller

[SPARC32]: Removes mismatch section warnigs in sparc time.c file

2007-05-29T09:49:16+00:00

This patch removes mismatch section warnings in the
sparc/kernel/time.c file.

Signed-off-by: Krzysztof Helt 
Signed-off-by: David S. Miller

[SPARC]: constify of_get_property return: arch/sparc

2007-04-26T08:54:22+00:00

Signed-off-by: Stephen Rothwell 
Signed-off-by: David S. Miller

[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