linux.git/include/asm-powerpc/system.h, branch v2.6.23

[PATCH] sched: sched_cacheflush is now unused

2007-07-19T19:28:35+00:00

Since Ingo's recent scheduler rewrite which was merged as commit
0437e109e1841607f2988891eaa36c531c6aa6ac sched_cacheflush is unused.

Signed-off-by: Ralf Baechle 
Signed-off-by: Ingo Molnar

[POWERPC] Make the debugfs "powerpc" dir globally accessible

2007-07-10T11:53:50+00:00

The prom.c debugging code creates a "powerpc" directory in debugfs,
which is nice, but doesn't allow any other debugging code to stick things
under "powerpc" in debugfs. So make it global.

While we're there we should make the prom.c debugging code depend on
CONFIG_DEBUG_FS, because it doesn't work otherwise.

Signed-off-by: Michael Ellerman 
Signed-off-by: Paul Mackerras

[POWERPC] Move inline asm eieio to using eieio inline function

2007-07-10T05:33:14+00:00

Use the eieio function so we can redefine what eieio does rather
than direct inline asm.  This is part code clean up and partially
because not all PPCs have eieio (book-e has mbar that maps to eieio).

Signed-off-by: Kumar Gala

Remove tas()

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

tas() has no users, so get rid of it.

Signed-off-by: Jeff Dike 
Cc: 
Cc: Paolo 'Blaisorblade' Giarrusso 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

atomic.h: add atomic64 cmpxchg, xchg and add_unless to powerpc

2007-05-08T18:15:19+00:00

[akpm@linux-foundation.org: build fixes]
Signed-off-by: Mathieu Desnoyers 
Cc: Paul Mackerras 
Cc: Benjamin Herrenschmidt 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[POWERPC] Declare enable_kernel_spe in a header

2007-04-30T01:02:05+00:00

This patch puts enable_kernel_spe into  along with
enable_kernel_altivec etc.

Signed-off-by: Johannes Berg 
Signed-off-by: Paul Mackerras

[POWERPC] Fix rmb() for e500-based machines it

2006-11-01T03:52:48+00:00

The e500 core generates an illegal instruction exception when it tries
to execute the lwsync instruction, which we currently use for rmb().
This fixes it by using the LWSYNC macro, which turns into a plain sync
on 32-bit machines.

Signed-off-by: Andrew Fleming 
Signed-off-by: Paul Mackerras

[POWERPC] Cleanup include/asm-powerpc/xmon.h

2006-10-04T04:52:17+00:00

For some reason we have two prototypes for xmon_init(), remove the
one in system.h.

No one calls xmon() anymore, debugger() is preferable, so we don't
need the prototype. And similarly no one calls xmon_printf().

Also update the include guards on xmon.h to match the standard
format, add copyright and license, and add comments to #endifs.

Built for pseries_defconfig and pmac32_defconfig.

Signed-off-by: Michael Ellerman 
Signed-off-by: Paul Mackerras

Merge branch 'merge'

2006-08-25T04:56:07+00:00

[POWERPC] Fix gettimeofday inaccuracies

2006-08-23T05:51:18+00:00

There are two problems in the powerpc gettimeofday code which can
cause incorrect results to be returned.

The first is that there is a race between do_gettimeofday and the
timer interrupt:

1. do_gettimeofday does get_tb()

2. decrementer exception on boot cpu which runs timer_recalc_offset,
   which also samples the timebase and updates the do_gtod structure
   with a greater timebase value.

3. do_gettimeofday calls __do_gettimeofday, which leads to the
   negative result from tb_val - temp_varp->tb_orig_stamp.

The second is caused by taking the boot cpu offline, which can cause
the value of tb_last_jiffy to be increased past the currently
available timebase, causing the same underflow as above.

[paulus@samba.org - define and use data_barrier() instead of mb().]

Signed-off-by: Nathan Lynch 
Signed-off-by: Paul Mackerras