linux-toradex.git/include/asm-s390, branch v2.6.18.3

[PATCH] __div64_32 for 31 bit.

2006-11-04T01:33:44+00:00

The clocksource infrastructure introduced with commit
ad596171ed635c51a9eef829187af100cbf8dcf7 broke 31 bit s390.
The reason is that the do_div() primitive for 31 bit always
had a restriction: it could only divide an unsigned 64 bit
integer by an unsigned 31 bit integer. The clocksource code
now uses do_div() with a base value that has the most
significant bit set. The result is that clock->cycle_interval
has a funny value which causes the linux time to jump around
like mad.
The solution is "obvious": implement a proper __div64_32
function for 31 bit s390.

Signed-off-by: Martin Schwidefsky 
Signed-off-by: Greg Kroah-Hartman 
Signed-off-by: Chris Wright

One line per header in Kbuild files to reduce conflicts

2006-10-13T20:23:23+00:00

Signed-off-by: David Woodhouse 
Signed-off-by: Greg Kroah-Hartman

[PATCH] Fix 'make headers_check' on s390

2006-09-16T19:54:31+00:00

On Tue, 2006-09-12 at 17:44 +0100, David Woodhouse wrote:
> asm-s390/debug.h requires linux/string.h, which does not exist
> asm-s390/elf.h requires asm/system.h, which does not exist

Move things around slightly so the right things end up within
#ifdef __KERNEL__ and thus don't pollute the exported headers.

Signed-off-by: David Woodhouse 
Cc: Sam Ravnborg 
Acked-by: Martin Schwidefsky 
Cc: Heiko Carstens 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[S390] get_clock inline assembly.

2006-07-17T14:09:42+00:00

Add missing volatile to the get_clock / get_cycles inline assemblies
to avoid that consecutive calls get optimized away.

Signed-off-by: Andreas Krebbel 
Signed-off-by: Martin Schwidefsky

[S390] Fix gcc warning about unused return values.

2006-07-17T14:09:18+00:00

Signed-off-by: Heiko Carstens 
Signed-off-by: Martin Schwidefsky

[PATCH] remove set_wmb - arch removal

2006-07-15T04:56:14+00:00

set_wmb should not be used in the kernel because it just confuses the
code more and has no benefit.  Since it is not currently used in the
kernel this patch removes it so that new code does not include it.

All archs define set_wmb(var, value) to do { var = value; wmb(); }
while(0) except ia64 and sparc which use a mb() instead.  But this is
still moot since it is not used anyway.

Hasn't been tested on any archs but x86 and x86_64 (and only compiled
tested)

Signed-off-by: Steven Rostedt 
Signed-off-by: Linus Torvalds

[S390] Fix sparse warnings.

2006-07-12T14:41:55+00:00

Signed-off-by: Heiko Carstens 
Signed-off-by: Martin Schwidefsky

[S390] path grouping and path verifications fixes.

2006-07-12T14:40:19+00:00

1. Multipath devices for which SetPGID is not supported are not handled well.
   Use NOP ccws for path verification (sans path grouping) when SetPGID is not
   supported.
2. Check for PGIDs already set with SensePGID on _all_ paths (not just the
   first one) and try to find a common one. Moan if no common PGID can be
   found (and use NOP verification). If no PGIDs have been set, use the css
   global PGID (as before). (Rationale: SetPGID will get a command reject if
   the PGID it tries to set does not match the already set PGID.)
3. Immediately before reboot, issue RESET CHANNEL PATH (rcp) on all chpids. This
   will remove the old PGIDs. rcp will generate solicited CRWs which can be
   savely ignored by the machine check handler (all other actions create
   unsolicited CRWs).

Signed-off-by: Cornelia Huck 
Signed-off-by: Martin Schwidefsky

[S390] cpu_relax() is supposed to have barrier() semantics.

2006-07-12T14:39:58+00:00

Signed-off-by: Heiko Carstens 
Signed-off-by: Martin Schwidefsky

[S390] fix futex_atomic_cmpxchg_inatomic

2006-07-12T14:39:55+00:00

futex_atomic_cmpxchg_inatomic has the same bug as the other
atomic futex operations: the operation needs to be done in the
user address space, not the kernel address space. Add the missing
sacf 256 & sacf 0.

Signed-off-by: Martin Schwidefsky