linux-dev/arch/sh64/kernel/process.c, branch master

sh: Split out arch/sh/kernel/process.c for _32 and _64 variants.

2008-01-28T04:18:42Z

Signed-off-by: Paul Mundt

sh64: Kill off duplicate includes.

2007-11-05T03:18:17Z

Follow the sh change. Signed-off-by: Paul Mundt

sh64: Fix fs.h removal from mm.h regressions.

2007-07-31T04:03:02Z

Signed-off-by: Paul Mundt

spelling fixes: arch/sh64/

2007-05-13T23:25:48Z

Spelling fixes in arch/sh64/. Signed-off-by: Simon Arlott Signed-off-by: Paul Mundt

[PATCH] sh64: remove the use of kernel syscalls

2006-10-02T14:57:23Z

sh64 is using system call macros to call some functions from the kernel. The old debug code can simply be removed, since we don't really have that much of a need for it anymore, it was mostly something that was handy during the initial bringup. This also brings us closer to something that looks like readable code again.. I also added a sane kernel_thread() implementation that gets away from this, so that should take care of sh64 at least. Signed-off-by: Paul Mundt Signed-off-by: Arnd Bergmann Cc: Andi Kleen Cc: Paul Mackerras Cc: Benjamin Herrenschmidt Cc: Richard Henderson Cc: Ivan Kokshaysky Cc: Russell King Cc: Ian Molton Cc: Mikael Starvik Cc: David Howells Cc: Yoshinori Sato Cc: Hirokazu Takata Cc: Ralf Baechle Cc: Kyle McMartin Cc: Heiko Carstens Cc: Martin Schwidefsky Cc: Kazumoto Kojima Cc: Richard Curnow Cc: William Lee Irwin III Cc: "David S. Miller" Cc: Jeff Dike Cc: Paolo 'Blaisorblade' Giarrusso Cc: Miles Bader Cc: Chris Zankel Cc: "Luck, Tony" Cc: Geert Uytterhoeven Cc: Roman Zippel Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

sh64: Add a sane pm_power_off implementation.

2006-09-12T05:40:09Z

sh64 wasn't providing a sensible pm_power_off(), add one, and just wrap it to machine_power_off, which already does the right thing. Signed-off-by: Paul Mundt

Remove obsolete #include

2006-06-30T17:25:36Z

Signed-off-by: Jörn Engel Signed-off-by: Adrian Bunk

[PATCH] sh64: task_stack_page()

2006-01-12T17:08:57Z

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

[PATCH] dump_thread() cleanup

2006-01-10T16:01:25Z

) From: Adrian Bunk - create one common dump_thread() prototype in kernel.h - dump_thread() is only used in fs/binfmt_aout.c and can therefore be removed on all architectures where CONFIG_BINFMT_AOUT is not available Signed-off-by: Adrian Bunk Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

[PATCH] sched: resched and cpu_idle rework

2005-11-09T15:56:33Z

Make some changes to the NEED_RESCHED and POLLING_NRFLAG to reduce confusion, and make their semantics rigid. Improves efficiency of resched_task and some cpu_idle routines. * In resched_task: - TIF_NEED_RESCHED is only cleared with the task's runqueue lock held, and as we hold it during resched_task, then there is no need for an atomic test and set there. The only other time this should be set is when the task's quantum expires, in the timer interrupt - this is protected against because the rq lock is irq-safe. - If TIF_NEED_RESCHED is set, then we don't need to do anything. It won't get unset until the task get's schedule()d off. - If we are running on the same CPU as the task we resched, then set TIF_NEED_RESCHED and no further action is required. - If we are running on another CPU, and TIF_POLLING_NRFLAG is *not* set after TIF_NEED_RESCHED has been set, then we need to send an IPI. Using these rules, we are able to remove the test and set operation in resched_task, and make clear the previously vague semantics of POLLING_NRFLAG. * In idle routines: - Enter cpu_idle with preempt disabled. When the need_resched() condition becomes true, explicitly call schedule(). This makes things a bit clearer (IMO), but haven't updated all architectures yet. - Many do a test and clear of TIF_NEED_RESCHED for some reason. According to the resched_task rules, this isn't needed (and actually breaks the assumption that TIF_NEED_RESCHED is only cleared with the runqueue lock held). So remove that. Generally one less locked memory op when switching to the idle thread. - Many idle routines clear TIF_POLLING_NRFLAG, and only set it in the inner most polling idle loops. The above resched_task semantics allow it to be set until before the last time need_resched() is checked before going into a halt requiring interrupt wakeup. Many idle routines simply never enter such a halt, and so POLLING_NRFLAG can be always left set, completely eliminating resched IPIs when rescheduling the idle task. POLLING_NRFLAG width can be increased, to reduce the chance of resched IPIs. Signed-off-by: Nick Piggin Cc: Ingo Molnar Cc: Con Kolivas Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds