linux.git/include/asm-mips/bitops.h, branch v2.6.23

[MIPS] Make support for weakly ordered LL/SC a config option.

2007-07-20T17:57:39+00:00

None of weakly ordered processor supported in tree need this but it seems
like this could change ...

Signed-off-by: Ralf Baechle

[MIPS] Remove a duplicated local variable in test_and_clear_bit()

2007-06-26T17:57:33+00:00

Fix a sparse warning caused by 2c921d07f8c641e691b0dfd80a5cfe14c60ec489

include2/asm/bitops.h:313:23: warning: symbol 'res' shadows an earlier one
include2/asm/bitops.h:309:16: originally declared here

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

[MIPS] Fix smp barriers in test_and_{change,clear,set}_bit

2007-06-11T17:20:55+00:00

Signed-off-by: Ralf Baechle

[MIPS] Lockdep: Fix recursion bug.

2007-03-17T01:03:29+00:00

 trace_hardirqs_off -> atomic_inc -> local_irq_restore -> trace_hardirqs_off

Signed-off-by: Ralf Baechle

[MIPS] R2 bitops compile fix for gcc < 4.0.

2007-03-07T00:07:17+00:00

Signed-off-by: Ralf Baechle

[MIPS] Use MIPS R2 instructions for bitops.

2007-02-18T21:31:35+00:00

Add R2 optimized variants of clear_bit, set_bit and test_and_clear_bit.
With gcc 4.1.1 this saves 1592 bytes on a defconfig (minus IPv6) kernel.
Turns out that R2 bitop instructions are no gain for the other bitop
functions.

Signed-off-by: Ralf Baechle

[MIPS] Improve branch prediction in ll/sc atomic operations.

2007-02-13T22:40:50+00:00

Now that finally all supported versions of binutils have functioning
support for .subsection use .subsection to tweak the branch prediction

I did not modify the R10000 errata variants because it seems unclear if
this will invalidate the workaround which actually relies on the cheesy
prediction of branch likely to cause a misspredict if the sc was
successful.

Signed-off-by: Ralf Baechle

[MIPS] Cleanup memory barriers for weakly ordered systems.

2006-12-04T22:43:14+00:00

Also the R4000 / R4600 LL/SC instructions imply a sync so no explicit sync
needed.

Signed-off-by: Ralf Baechle

[MIPS] Remove unused definition of cpu_to_lelongp()

2006-11-30T01:14:51+00:00

Signed-off-by: Ralf Baechle

[MIPS] Remove userspace proofing from .

2006-11-30T01:14:50+00:00

Signed-off-by: Ralf Baechle