linux-toradex.git/arch/sh/include/asm/bitops.h, branch v4.1-rc4

arch,sh: Convert smp_mb__*()

2014-04-18T12:20:44+00:00

SH can use the asm-generic/barrier.h implementation since that uses
smp_mb().

Signed-off-by: Peter Zijlstra 
Acked-by: Paul E. McKenney 
Link: http://lkml.kernel.org/n/tip-2z962by2ppzcd984ybw2mwdw@git.kernel.org
Cc: Linus Torvalds 
Cc: linux-kernel@vger.kernel.org
Cc: linux-sh@vger.kernel.org
Signed-off-by: Ingo Molnar

Disintegrate asm/system.h for SH

2012-03-28T17:30:03+00:00

Disintegrate asm/system.h for SH.

Signed-off-by: David Howells 
cc: linux-sh@vger.kernel.org

bitops: remove minix bitops from asm/bitops.h

2011-03-24T02:46:22+00:00

minix bit operations are only used by minix filesystem and useless by
other modules.  Because byte order of inode and block bitmaps is different
on each architecture like below:

m68k:
	big-endian 16bit indexed bitmaps

h8300, microblaze, s390, sparc, m68knommu:
	big-endian 32 or 64bit indexed bitmaps

m32r, mips, sh, xtensa:
	big-endian 32 or 64bit indexed bitmaps for big-endian mode
	little-endian bitmaps for little-endian mode

Others:
	little-endian bitmaps

In order to move minix bit operations from asm/bitops.h to architecture
independent code in minix filesystem, this provides two config options.

CONFIG_MINIX_FS_BIG_ENDIAN_16BIT_INDEXED is only selected by m68k.
CONFIG_MINIX_FS_NATIVE_ENDIAN is selected by the architectures which use
native byte order bitmaps (h8300, microblaze, s390, sparc, m68knommu,
m32r, mips, sh, xtensa).  The architectures which always use little-endian
bitmaps do not select these options.

Finally, we can remove minix bit operations from asm/bitops.h for all
architectures.

Signed-off-by: Akinobu Mita 
Acked-by: Arnd Bergmann 
Acked-by: Greg Ungerer 
Cc: Geert Uytterhoeven 
Cc: Roman Zippel 
Cc: Andreas Schwab 
Cc: Martin Schwidefsky 
Cc: Heiko Carstens 
Cc: Yoshinori Sato 
Cc: Michal Simek 
Cc: "David S. Miller" 
Cc: Hirokazu Takata 
Acked-by: Ralf Baechle 
Acked-by: Paul Mundt 
Cc: Chris Zankel 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

bitops: remove ext2 non-atomic bitops from asm/bitops.h

2011-03-24T02:46:21+00:00

As the result of conversions, there are no users of ext2 non-atomic bit
operations except for ext2 filesystem itself.  Now we can put them into
architecture independent code in ext2 filesystem, and remove from
asm/bitops.h for all architectures.

Signed-off-by: Akinobu Mita 
Cc: Jan Kara 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

bitops: introduce little-endian bitops for most architectures

2011-03-24T02:46:15+00:00

Introduce little-endian bit operations to the big-endian architectures
which do not have native little-endian bit operations and the
little-endian architectures.  (alpha, avr32, blackfin, cris, frv, h8300,
ia64, m32r, mips, mn10300, parisc, sh, sparc, tile, x86, xtensa)

These architectures can just include generic implementation
(asm-generic/bitops/le.h).

Signed-off-by: Akinobu Mita 
Cc: Richard Henderson 
Cc: Ivan Kokshaysky 
Cc: Mikael Starvik 
Cc: David Howells 
Cc: Yoshinori Sato 
Cc: "Luck, Tony" 
Cc: Ralf Baechle 
Cc: Kyle McMartin 
Cc: Matthew Wilcox 
Cc: Grant Grundler 
Cc: Paul Mundt 
Cc: Kazumoto Kojima 
Cc: Hirokazu Takata 
Cc: "David S. Miller" 
Cc: Chris Zankel 
Cc: Ingo Molnar 
Cc: Thomas Gleixner 
Acked-by: Hans-Christian Egtvedt 
Acked-by: "H. Peter Anvin" 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

sh: Fix up smp_mb__xxx() memory barriers for SH-4A SMP.

2009-10-18T06:36:02+00:00

In the past these were simply wrapping to barrier() which was sufficient
on SH SMP platforms predating SH-4A. Unfortunately due to ll/sc semantics
an explicit synco is needed in these cases, which is sorted for us by
just switching these over to smp_mb(). smp_mb() also has the benefit of
being wrapped to barrier() in the UP and non-SH4A cases, so old behaviour
is maintained for those parts.

Signed-off-by: Paul Mundt

sh: Provide optimized non-atomic bitops for SH-2A.

2008-12-22T09:42:54+00:00

This ties in the new SH-2A 32-bit non-atomic bitops.

Signed-off-by: Paul Mundt

sh: Convert to generic bitops for IRQ-toggling implementation.

2008-12-22T09:42:53+00:00

Signed-off-by: Paul Mundt

sh: Provide movli.l/movco.l-based bitops.

2008-09-08T01:35:02+00:00

Signed-off-by: Paul Mundt

sh: migrate to arch/sh/include/

2008-07-28T23:09:44+00:00

This follows the sparc changes a439fe51a1f8eb087c22dd24d69cebae4a3addac.

Most of the moving about was done with Sam's directions at:

http://marc.info/?l=linux-sh&m=121724823706062&w=2

with subsequent hacking and fixups entirely my fault.

Signed-off-by: Sam Ravnborg 
Signed-off-by: Paul Mundt