linux-toradex.git/arch/mips/kernel/unaligned.c, branch v2.6.28.9

MIPS: Switch FPU emulator trap to BREAK instruction.

2008-10-30T14:44:34+00:00

Arguably using the address error handler has always been ugly.  But with
processors that handle unaligned loads and stores in hardware the
current mechanism ceases to work so switch it to a BREAK instruction and
allocate break code 514 to the FPU emulator.

Yoichi Yuasa provided a build fix for CONFIG_BUG=n.

Signed-off-by: Ralf Baechle 
Signed-off-by: Yoichi Yuasa

MIPS: Fix debugfs_create_*'s error checking method for mips/kernel/

2008-10-27T16:18:25+00:00

debugfs_create_*() returns NULL on error.  Make its callers return -ENODEV
on error.

Signed-off-by: Zhao Lei 
Acked-by: Atsushi Nemoto 
Signed-off-by: Ralf Baechle

[MIPS] Fix "no space between function name and open parenthesis" warnings.

2007-10-11T22:46:15+00:00

Signed-off-by: Ralf Baechle

[MIPS] Fix build warning in unaligned load/store emulator.

2007-07-31T20:35:30+00:00

Signed-off-by: Ralf Baechle

[MIPS] Fixup secure computing stuff.

2007-07-31T20:35:21+00:00

Signed-off-by: Ralf Baechle

[MIPS] Add some debugfs files to debug unaligned accesses

2007-07-10T16:33:04+00:00

Currently a number of unaligned instructions is counted but not used.
Add /debug/mips/unaligned_instructions file to show the value.

And add /debug/mips/unaligned_action to control behavior upon an
unaligned access.  Possible actions are:

0: silently fixup the unaligned access.
1: send SIGBUS.
2: dump registers, process name, etc. and fixup.

Signed-off-by: Atsushi Nemoto 
Signed-off-by: Ralf Baechle

Detach sched.h from mm.h

2007-05-21T16:18:19+00:00

First thing mm.h does is including sched.h solely for can_do_mlock() inline
function which has "current" dereference inside. By dealing with can_do_mlock()
mm.h can be detached from sched.h which is good. See below, why.

This patch
a) removes unconditional inclusion of sched.h from mm.h
b) makes can_do_mlock() normal function in mm/mlock.c
c) exports can_do_mlock() to not break compilation
d) adds sched.h inclusions back to files that were getting it indirectly.
e) adds less bloated headers to some files (asm/signal.h, jiffies.h) that were
   getting them indirectly

Net result is:
a) mm.h users would get less code to open, read, preprocess, parse, ... if
   they don't need sched.h
b) sched.h stops being dependency for significant number of files:
   on x86_64 allmodconfig touching sched.h results in recompile of 4083 files,
   after patch it's only 3744 (-8.3%).

Cross-compile tested on

	all arm defconfigs, all mips defconfigs, all powerpc defconfigs,
	alpha alpha-up
	arm
	i386 i386-up i386-defconfig i386-allnoconfig
	ia64 ia64-up
	m68k
	mips
	parisc parisc-up
	powerpc powerpc-up
	s390 s390-up
	sparc sparc-up
	sparc64 sparc64-up
	um-x86_64
	x86_64 x86_64-up x86_64-defconfig x86_64-allnoconfig

as well as my two usual configs.

Signed-off-by: Alexey Dobriyan 
Signed-off-by: Linus Torvalds

header cleaning: don't include smp_lock.h when not used

2007-05-08T18:15:07+00:00

Remove includes of  where it is not used/needed.
Suggested by Al Viro.

Builds cleanly on x86_64, i386, alpha, ia64, powerpc, sparc,
sparc64, and arm (all 59 defconfigs).

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

[MIPS] Always fixup unaligned accesses in kernel mode.

2007-02-26T23:06:06+00:00

Signed-off-by: Ralf Baechle

Remove obsolete #include

2006-06-30T17:25:36+00:00

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