linux-toradex.git/arch/sparc/lib, branch colibri_vf

sparc: Use popc when possible for ffs/__ffs/ffz.

2011-08-16T01:31:41+00:00

[ Upstream commit 56d205cc5c0a3032a605121d4253e111193bf923 ]

Signed-off-by: David S. Miller 
Signed-off-by: Greg Kroah-Hartman

sparc: Use popc if possible for hweight routines.

2011-08-16T01:31:40+00:00

[ Upstream commit ef7c4d4675d2a9206f913f26ca1a5cd41bff9d41 ]

Just like powerpc, we code patch at boot time.

Signed-off-by: David S. Miller 
Signed-off-by: Greg Kroah-Hartman

sparc: Minor tweaks to Niagara page copy/clear.

2011-08-16T01:31:40+00:00

[ Upstream commit e95ade083939dcb4b0c51c1a2c8504ea9ef3d6ef ]

Don't use floating point on Niagara2, use the traditional
plain Niagara code instead.

Unroll Niagara loops to 128 bytes for copy, and 256 bytes
for clear.

Signed-off-by: David S. Miller 
Signed-off-by: Greg Kroah-Hartman

Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6

2011-05-20T19:59:54+00:00

sparc32: Fixed unaligned memory copying in function __csum_partial_copy_sparc_generic

2011-05-12T04:35:04+00:00

When we are in the label cc_dword_align, registers %o0 and %o1 have the same last 2 bits,
but it's not guaranteed one of them is zero. So we can get unaligned memory access
in label ccte. Example of parameters which lead to this:
%o0=0x7ff183e9, %o1=0x8e709e7d, %g1=3

With the parameters I had a memory corruption, when the additional 5 bytes were rewritten.
This patch corrects the error.

One comment to the patch. We don't care about the third bit in %o1, because cc_end_cruft
stores word or less.

Signed-off-by: Tkhai Kirill 
Signed-off-by: David S. Miller

sparc32: removed unused code, implemented by generic code

2011-04-21T23:44:44+00:00

Signed-off-by: Daniel Hellstrom 
Signed-off-by: David S. Miller

Merge branch 'core-locking-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

2011-03-16T01:28:30+00:00

* 'core-locking-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  rtmutex: tester: Remove the remaining BKL leftovers
  lockdep/timers: Explain in detail the locking problems del_timer_sync() may cause
  rtmutex: Simplify PI algorithm and make highest prio task get lock
  rwsem: Remove redundant asmregparm annotation
  rwsem: Move duplicate function prototypes to linux/rwsem.h
  rwsem: Unify the duplicate rwsem_is_locked() inlines
  rwsem: Move duplicate init macros and functions to linux/rwsem.h
  rwsem: Move duplicate struct rwsem declaration to linux/rwsem.h
  x86: Cleanup rwsem_count_t typedef
  rwsem: Cleanup includes
  locking: Remove deprecated lock initializers
  cred: Replace deprecated spinlock initialization
  kthread: Replace deprecated spinlock initialization
  xtensa: Replace deprecated spinlock initialization
  um: Replace deprecated spinlock initialization
  sparc: Replace deprecated spinlock initialization
  mips: Replace deprecated spinlock initialization
  cris: Replace deprecated spinlock initialization
  alpha: Replace deprecated spinlock initialization
  rtmutex-tester: Remove BKL tests

sparc: use bitmap_set()

2011-02-09T06:52:53+00:00

Use bitmap_set() instead of calling __set_bit() each bit.

Signed-off-by: Akinobu Mita 
Cc: "David S. Miller" 
Cc: sparclinux@vger.kernel.org
Signed-off-by: David S. Miller

sparc: Replace deprecated spinlock initialization

2011-01-27T11:30:37+00:00

SPIN_LOCK_UNLOCK is deprecated. Use the lockdep capable variant
instead.

Signed-off-by: Thomas Gleixner 
Acked-by: David S. Miller

sparc64: Make lock backoff really a NOP on UP builds.

2010-08-19T05:53:26+00:00

As noticed by Mikulas Patocka, the backoff macros don't
completely nop out for UP builds, we still get a
branch always and a delay slot nop.

Fix this by making the branch to the backoff spin loop
selective, then we can nop out the spin loop completely.

Signed-off-by: David S. Miller