linux-toradex.git/include/linux/clocksource.h, branch v2.6.23.12

[IA64] Convert to generic timekeeping/clocksource

2007-07-20T18:22:30+00:00

This is a merge of Peter Keilty's initial patch (which was
revived by Bob Picco) for this with Hidetoshi Seto's fixes
and scaling improvements.

Acked-by: Bob Picco 
Signed-off-by: Tony Luck

clocksource: fix resume logic

2007-05-09T19:30:56+00:00

We need to make sure that the clocksources are resumed, when timekeeping is
resumed.  The current resume logic does not guarantee this.

Add a resume function pointer to the clocksource struct, so clocksource
drivers which need to reinitialize the clocksource can provide a resume
function.

Add a resume function, which calls the maybe available clocksource resume
functions and resets the watchdog function, so a stable TSC can be used
accross suspend/resume.

Signed-off-by: Thomas Gleixner 
Cc: john stultz 
Cc: Andi Kleen 
Cc: Ingo Molnar 
Cc: 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

time: SMP friendly alignment of struct clocksource

2007-05-08T18:15:06+00:00

struct clocksource is a critical data structure.

Most of its fields are read only, some of them are heavily modified at each
timer interrupt.

It makes sense to separate those fields and make sure they all share one
cache line, or at least the minimum for machines with small cache lines.

[akpm@linux-foundation.org: build fix]
Signed-off-by: Eric Dumazet 
Acked-by: John Stultz 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] generic: vsyscall-gtod support for GENERIC_TIME

2007-02-16T16:14:00+00:00

Provides generic infrastructure for vsyscall-gtod.

[akpm@osdl.org: cleanup]
Signed-off-by: John Stultz 
Cc: Ingo Molnar 
Cc: Thomas Gleixner 
Cc: Andi Kleen 
Cc: Roman Zippel 

Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] clocksource: Add verification (watchdog) helper

2007-02-16T16:13:57+00:00

The TSC needs to be verified against another clocksource.  Instead of using
hardwired assumptions of available hardware, provide a generic verification
mechanism.  The verification uses the best available clocksource and handles
the usability for high resolution timers / dynticks of the clocksource which
needs to be verified.

Signed-off-by: Thomas Gleixner 
Signed-off-by: Ingo Molnar 
Cc: john stultz 
Cc: Roman Zippel 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] clocksource: Remove the update callback

2007-02-16T16:13:57+00:00

The clocksource code allows direct updates of the rating of a given
clocksource now.  Change TSC unstable tracking to use this interface and
remove the update callback.

Signed-off-by: Thomas Gleixner 
Signed-off-by: Ingo Molnar 
Cc: john stultz 
Cc: Roman Zippel 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] clocksource: replace is_continuous by a flag field

2007-02-16T16:13:57+00:00

Using a flag filed allows to encode more than one information into a variable.
Preparatory patch for the generic clocksource verification.

[mingo@elte.hu: convert vmitime.c to the new clocksource flag]
Signed-off-by: Thomas Gleixner 
Signed-off-by: Ingo Molnar 
Cc: john stultz 
Cc: Roman Zippel 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] Simplify the registration of clocksources

2007-02-16T16:13:57+00:00

Enqueue clocksources in rating order to make selection of the clocksource
easier.  Also check the match with an user override at enqueue time.

Preparatory patch for the generic clocksource verification.

Signed-off-by: Thomas Gleixner 
Signed-off-by: Ingo Molnar 
Cc: john stultz 
Cc: Roman Zippel 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] clocksource: small cleanup

2006-12-10T17:57:22+00:00

Mostly changing alignment.  Just some general cleanup.

[akpm@osdl.org: build fix]
Signed-off-by: Daniel Walker 
Acked-by: John Stultz 
Cc: Thomas Gleixner 
Cc: Ingo Molnar 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] fix and optimize clock source update

2006-06-26T16:58:21+00:00

This fixes the clock source updates in update_wall_time() to correctly
track the time coming in via current_tick_length().  Optimize the fast
paths to be as short as possible to keep the overhead low.

Signed-off-by: Roman Zippel 
Acked-by: John Stultz 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds