linux.git/include/asm-m32r/system.h, branch master Linux kernel source tree m32r: move include/asm-m32r headers to arch/m32r/include/asm 2009-04-17T01:05:01+00:00 Hirokazu Takata takata@linux-m32r.org 2008-11-27T17:46:48+00:00 fe4e719d82c4052751d2287de4bd18bd04e93685 Signed-off-by: Hirokazu Takata <takata@linux-m32r.org> 
Signed-off-by: Hirokazu Takata <takata@linux-m32r.org>
sched: rename SCHED_NO_NO_OMIT_FRAME_POINTER => SCHED_OMIT_FRAME_POINTER 2008-11-11T07:59:20+00:00 Ingo Molnar mingo@elte.hu 2008-11-11T08:05:16+00:00 ae1e9130bfb9ad55eb97ec3fb17a122b7a118f98 Impact: cleanup, change .config option name We had this ugly config name for a long time for hysteric raisons. Rename it to a saner name. We still cannot get rid of it completely, until /proc/<pid>/stack usage replaces WCHAN usage for good. We'll be able to do that in the v2.6.29/v2.6.30 timeframe. Signed-off-by: Ingo Molnar <mingo@elte.hu> 
Impact: cleanup, change .config option name

We had this ugly config name for a long time for hysteric raisons.
Rename it to a saner name.

We still cannot get rid of it completely, until /proc/<pid>/stack
usage replaces WCHAN usage for good.

We'll be able to do that in the v2.6.29/v2.6.30 timeframe.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Fix m32r __xchg 2008-02-07T16:42:32+00:00 Mathieu Desnoyers mathieu.desnoyers@polymtl.ca 2008-02-07T08:16:18+00:00 f94d1d3a1df125461a16b2888eca46d64f113e3a the #endif /* CONFIG_SMP */ should cover the default condition, or it may cause bad parameter to be silently missed. To make it work correctly, we have to remove the ifdef CONFIG SMP surrounding __xchg_called_with_bad_pointer declaration. Thanks to Adrian Bunk for detecting this. Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca> Acked-by: Hirokazu Takata <takata@linux-m32r.org> Cc: Adrian Bunk <bunk@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 
the #endif  /* CONFIG_SMP */ should cover the default condition, or it may cause
bad parameter to be silently missed.

To make it work correctly, we have to remove the ifdef CONFIG SMP surrounding
__xchg_called_with_bad_pointer declaration. Thanks to Adrian Bunk for detecting
this.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
Acked-by: Hirokazu Takata <takata@linux-m32r.org>
Cc: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
New cmpxchg_local (optimized for UP case) for m32r 2008-02-07T16:42:32+00:00 Mathieu Desnoyers mathieu.desnoyers@polymtl.ca 2008-02-07T08:16:17+00:00 7b631c2de63b4475351258197409983c8189ed04 Add __xchg_local, xchg_local (define), __cmpxchg_local_u32, __cmpxchg_local, cmpxchg_local(macro). cmpxchg_local and cmpxchg64_local will use the architecture specific __cmpxchg_local_u32 for 32 bits arguments, and use the generic __cmpxchg_local_generic for 8, 16 and 64 bits arguments. Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca> Acked-by: Hirokazu Takata <takata@linux-m32r.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 
Add __xchg_local, xchg_local (define), __cmpxchg_local_u32, __cmpxchg_local,
cmpxchg_local(macro).

cmpxchg_local and cmpxchg64_local will use the architecture specific
__cmpxchg_local_u32 for 32 bits arguments, and use the generic
__cmpxchg_local_generic for 8, 16 and 64 bits arguments.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
Acked-by: Hirokazu Takata <takata@linux-m32r.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
[PATCH] sched: sched_cacheflush is now unused 2007-07-19T19:28:35+00:00 Ralf Baechle ralf@linux-mips.org 2007-07-19T19:28:35+00:00 c41917df8a1adde34864116ce2231a7fe308d2ff Since Ingo's recent scheduler rewrite which was merged as commit 0437e109e1841607f2988891eaa36c531c6aa6ac sched_cacheflush is unused. Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: Ingo Molnar <mingo@elte.hu> 
Since Ingo's recent scheduler rewrite which was merged as commit
0437e109e1841607f2988891eaa36c531c6aa6ac sched_cacheflush is unused.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
m32r: __xchg() should be always_inline 2007-05-16T01:56:37+00:00 Al Viro viro@ftp.linux.org.uk 2007-05-15T19:37:00+00:00 b4e1ded3cf6e13c122f019532cb60347d6c88c8c it depends on elimination of unreachable branches in switch (by object size), so we must declare it always_inline Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Acked-by: Hirokazu Takata <takata@linux-m32r.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 
it depends on elimination of unreachable branches in switch (by object
size), so we must declare it always_inline

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Acked-by: Hirokazu Takata <takata@linux-m32r.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
m32r: fix switch_to macro to push/pop frame pointer if needed 2007-05-11T15:29:33+00:00 Hirokazu Takata takata.hirokazu@renesas.com 2007-05-11T05:22:25+00:00 43c09ce7927912c7867617cba0a265beea38a154 This patch fixes a rarely-happened but severe scheduling problem of the recent m32r kernel of 2.6.17-rc3 or later. In the following previous m32r patch, the switch_to macro was modified not to do unnecessary push/pop operations for tuning. > [PATCH] m32r: update switch_to macro for tuning > 4127272c38619c56f0c1aa01d01c7bd757db70a1 In this modification, only 'lr' and 'sp' registers are push/pop'ed, assuming that the m32r kernel is always compiled with -fomit-frame-pointer option. However, in 2.6 kernel, kernel/sched.c is irregularly compiled with -fno-omit-frame-pointer if CONFIG_SCHED_NO_NO_OMIT_FRAME_POINTER is not defined. -- kernel/Makefile -- : ifneq ($(CONFIG_SCHED_NO_NO_OMIT_FRAME_POINTER),y) # According to Alan Modra <alan@linuxcare.com.au>, the -fno-omit-frame-pointer is # needed for x86 only. Why this used to be enabled for all architectures is beyond # me. I suspect most platforms don't need this, but until we know that for sure # I turn this off for IA-64 only. Andreas Schwab says it's also needed on m68k # to get a correct value for the wait-channel (WCHAN in ps). --davidm CFLAGS_sched.o := $(PROFILING) -fno-omit-frame-pointer endif : --- Therefore, for the recent m32r kernel, we have to push/pop 'fp' (frame pointer) if CONFIG_FRAME_POINTER is defined or CONFIG_SCHED_NO_NO_OMIT_FRAME_POINTER is not defined. Signed-off-by: Hitoshi Yamamoto <hitoshiy@linux-m32r.org> Signed-off-by: Hirokazu Takata <takata@linux-m32r.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 
This patch fixes a rarely-happened but severe scheduling problem of
the recent m32r kernel of 2.6.17-rc3 or later.

In the following previous m32r patch, the switch_to macro was
modified not to do unnecessary push/pop operations for tuning.
> [PATCH] m32r: update switch_to macro for tuning
> 4127272c38619c56f0c1aa01d01c7bd757db70a1

In this modification, only 'lr' and 'sp' registers are push/pop'ed,
assuming that the m32r kernel is always compiled with
-fomit-frame-pointer option.

However, in 2.6 kernel, kernel/sched.c is irregularly compiled
with -fno-omit-frame-pointer if CONFIG_SCHED_NO_NO_OMIT_FRAME_POINTER
is not defined.

 -- kernel/Makefile --
   :
 ifneq ($(CONFIG_SCHED_NO_NO_OMIT_FRAME_POINTER),y)
 # According to Alan Modra <alan@linuxcare.com.au>, the -fno-omit-frame-pointer is
 # needed for x86 only.  Why this used to be enabled for all architectures is beyond
 # me.  I suspect most platforms don't need this, but until we know that for sure
 # I turn this off for IA-64 only.  Andreas Schwab says it's also needed on m68k
 # to get a correct value for the wait-channel (WCHAN in ps). --davidm
 CFLAGS_sched.o := $(PROFILING) -fno-omit-frame-pointer
 endif
   :
 ---

Therefore, for the recent m32r kernel, we have to push/pop 'fp'
(frame pointer) if CONFIG_FRAME_POINTER is defined or
CONFIG_SCHED_NO_NO_OMIT_FRAME_POINTER is not defined.

Signed-off-by: Hitoshi Yamamoto <hitoshiy@linux-m32r.org>
Signed-off-by: Hirokazu Takata <takata@linux-m32r.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Fix misspellings collected by members of KJ list. 2007-05-09T05:14:03+00:00 Robert P. J. Day rpjday@mindspring.com 2007-05-09T05:14:03+00:00 beb7dd86a101263bf63a78c7c6d4da3849b35bd6 Fix the misspellings of "propogate", "writting" and (oh, the shame :-) "kenrel" in the source tree. Signed-off-by: Robert P. J. Day <rpjday@mindspring.com> Signed-off-by: Adrian Bunk <bunk@stusta.de> 
Fix the misspellings of "propogate", "writting" and (oh, the shame
:-) "kenrel" in the source tree.

Signed-off-by: Robert P. J. Day <rpjday@mindspring.com>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Remove tas() 2007-05-08T18:15:20+00:00 Jeff Dike jdike@addtoit.com 2007-05-08T07:34:59+00:00 5dc12ddee93d63d7107cbbf70db23476d7b30e43 tas() has no users, so get rid of it. Signed-off-by: Jeff Dike <jdike@linux.intel.com> Cc: <linux-arch@vger.kernel.org> Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 
tas() has no users, so get rid of it.

Signed-off-by: Jeff Dike <jdike@linux.intel.com>
Cc: <linux-arch@vger.kernel.org>
Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
[PATCH] m32r: cosmetic updates and trivial fixes 2007-02-11T18:51:20+00:00 Hirokazu Takata takata@linux-m32r.org 2007-02-10T09:43:40+00:00 fabb626ad6a3744b9f0eaae215a2418d521c1e14 Cosmetic updates and trivial fixes of m32r arch-dependent files. - Remove RCS ID strings and trailing white lines - Other misc. cosmetic updates Signed-off-by: Hirokazu Takata <takata@linux-m32r.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 
Cosmetic updates and trivial fixes of m32r arch-dependent files.
- Remove RCS ID strings and trailing white lines
- Other misc. cosmetic updates

Signed-off-by: Hirokazu Takata <takata@linux-m32r.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>