linux.git/include/asm-frv/system.h, branch v2.6.28

frv: fix irqs_disabled() to return an int, not an unsigned long

2008-07-12T21:33:42+00:00

Fix FRV irqs_disabled() to return an int, not an unsigned long to avoid
this warning:

kernel/sched.c: In function '__might_sleep':
kernel/sched.c:8198: warning: format '%d' expects type 'int', but argument 3 has type 'long unsigned int'

Signed-off-by: David Howells 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

read_barrier_depends arch fixlets

2008-05-14T17:05:18+00:00

read_barrie_depends has always been a noop (not a compiler barrier) on all
architectures except SMP alpha. This brings UP alpha and frv into line with all
other architectures, and fixes incorrect documentation.

Signed-off-by: Nick Piggin 
Acked-by: Paul E. McKenney 
Signed-off-by: Linus Torvalds

frv: remove HARD_RESET_NOW()

2008-04-21T23:03:13+00:00

HARD_RESET_NOW() was unused.

And one of the few remaining cli() users.

Signed-off-by: Adrian Bunk 
Signed-off-by: David Howells 
Signed-off-by: Linus Torvalds

FRV: Don't make smp_{r, w, }mb() interpolate MEMBAR when CONFIG_SMP=n [try #2]

2008-04-10T20:41:29+00:00

Don't make smp_{r,w,}mb() interpolate a MEMBAR instruction when CONFIG_SMP=n as
SMP memory barries on UP systems should interpolate a compiler barrier only.

Signed-off-by: David Howells 
Signed-off-by: Linus Torvalds

NULL noise: frv cmpxchg()

2008-03-30T21:20:23+00:00

Signed-off-by: Al Viro 
Acked-by: Harvey Harrison 
Signed-off-by: Linus Torvalds

Fix FRV cmpxchg_local

2008-02-08T23:33:32+00:00

Fix the FRV cmpxchg_local by breaking the following header dependency loop :

linux/kernel.h -> linux/bitops.h -> asm-frv/bitops.h -> asm-frv/atomic.h
  -> asm-frv/system.h ->
  asm-generic/cmpxchg_local.h -> typecheck() defined in linux/kernel.h

and

linux/kernel.h -> linux/bitops.h -> asm-frv/bitops.h -> asm-frv/atomic.h ->
  asm-generic/cmpxchg_local.h -> typecheck() defined in linux/kernel.h

In order to fix this :
- Move the atomic_test_and_ *_mask inlines from asm-frv/atomic.h (why are they
  there at all anyway ? They are not touching atomic_t variables!) to
  asm-frv/bitops.h.

Also fix a build issue with cmpxchg : it does not cast to (unsigned long *)
like other architectures, to deal with it in the cmpxchg_local macro.

FRV builds fine with this patch.

Thanks to Adrian Bunk  for spotting this bug.

Signed-off-by: Mathieu Desnoyers 
Cc: Adrian Bunk 
Cc: David Howells 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

Add cmpxchg_local to frv

2008-02-07T16:42:32+00:00

Use the new generic cmpxchg_local (disables interrupt) for 8, 16 and 64 bits
arguments. Use the 32 bits cmpxchg available on the architecture for 32 bits
arguments.

Signed-off-by: Mathieu Desnoyers 
Cc: David Howells 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

frv: missing casts in cmpxchg()

2007-10-14T19:41:51+00:00

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

frv: build fix

2007-06-08T00:00:25+00:00

In file included from /usr/src/linux-2.6-2/net/ipv4/ip_input.c:118:

  include2/asm/system.h:245: error: parse error before "__cmpxchg_32"
  include2/asm/system.h:245: error: parse error before '*' token
  include2/asm/system.h:245: warning: type defaults to `int' in declaration of `__cmpxchg_32'
  include2/asm/system.h:245: warning: function declaration isn't a prototype
  include2/asm/system.h:245: warning: data definition has no type or storage class

Signed-off-by: Peter Zijlstra 
Acked-by: David Howells 
Signed-off-by: Linus Torvalds

atomic.h: atomic_add_unless as inline. Remove system.h atomic.h circular dependency

2007-05-08T18:15:20+00:00

atomic_add_unless as inline. Remove system.h atomic.h circular dependency.
I agree (with Andi Kleen) this typeof is not needed and more error
prone. All the original atomic.h code that uses cmpxchg (which includes
the atomic_add_unless) uses defines instead of inline functions,
probably to circumvent a circular dependency between system.h and
atomic.h on powerpc (which my patch addresses). Therefore, it makes
sense to use inline functions that will provide type checking.

atomic_add_unless as inline. Remove system.h atomic.h circular dependency.
Digging into the FRV architecture shows me that it is also affected by
such a circular dependency. Here is the diff applying this against the
rest of my atomic.h patches.

It applies over the atomic.h standardization patches.

Signed-off-by: Mathieu Desnoyers 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds