linux.git/include/asm-powerpc, branch v2.6.21.7

allow vmsplice to work in 32-bit mode on ppc64

2007-04-17T23:36:26+00:00

Trivial change to pass vmsplice arguments through the compat layer on
pp64.

Signed-off-by: Don Zickus 
Acked-by: Stephen Rothwell 
Acked-by: Paul Mackerras 
Cc: Benjamin Herrenschmidt 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[POWERPC] qe: ucc_slow.guemr is in the wrong place

2007-03-29T19:33:56+00:00

The definition of struct ucc_slow puts the guemr register immediately after the
utpt register, when it should be at offset 0x90.  This patch adds the missing
0x52-byte padding.

Signed-off-by: Timur Tabi 
Signed-off-by: Kumar Gala

[POWERPC] Avoid hypervisor statistics calculation in real mode

2007-03-22T04:01:43+00:00

kexec invokes plpar_hcall hypervisor call in real mode.  plpar_hcall
refers to per cpu variables for accounting hypervisor statistics.
These variables may not be in the RMO region, so accesses to them
in real mode may result in a data storage exception.

This fixes this problem by using a new plpar_hcall_raw function which
does not update the hypervisor call statistics.  Thanks to Anton for
suggesting this idea.

Signed-off-by: Mohan Kumar M 
Signed-off-by: Paul Mackerras

[PATCH] ANSIfy powerpc floppy.h

2007-03-14T22:27:50+00:00

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

[POWERPC] sys_move_pages should be callable from an SPU

2007-03-12T04:48:35+00:00

Signed-off-by: Stephen Rothwell 
Signed-off-by: Paul Mackerras

[POWERPC] Wire up sys_epoll_pwait

2007-03-12T04:48:35+00:00

Signed-off-by: Stephen Rothwell 
Signed-off-by: Paul Mackerras

[POWERPC] Allocate syscall number for sys_getcpu

2007-03-12T04:48:35+00:00

I forgot to do this when wiring up the syscall.

Signed-off-by: Stephen Rothwell 
Signed-off-by: Paul Mackerras

[POWERPC] Fix spu SLB invalidations

2007-03-09T23:07:50+00:00

The SPU code doesn't properly invalidate SPUs SLBs when necessary,
for example when changing a segment size from the hugetlbfs code. In
addition, it saves and restores the SLB content on context switches
which makes it harder to properly handle those invalidations.

This patch removes the saving & restoring for now, something more
efficient might be found later on. It also adds a spu_flush_all_slbs(mm)
that can be used by the core mm code to flush the SLBs of all SPEs that
are running a given mm at the time of the flush.

In order to do that, it adds a spinlock to the list of all SPEs and move
some bits & pieces from spufs to spu_base.c

Signed-off-by: Benjamin Herrenschmidt

[PATCH] sched: remove SMT nice

2007-03-05T15:57:51+00:00

Remove the SMT-nice feature which idles sibling cpus on SMT cpus to
facilitiate nice working properly where cpu power is shared.  The idling of
cpus in the presence of runnable tasks is considered too fragile, easy to
break with outside code, and the complexity of managing this system if an
architecture comes along with many logical cores sharing cpu power will be
unworkable.

Remove the associated per_cpu_gain variable in sched_domains used only by
this code.

Also:

  The reason is that with dynticks enabled, this code breaks without yet
  further tweaks so dynticks brought on the rapid demise of this code.  So
  either we tweak this code or kill it off entirely.  It was Ingo's preference
  to kill it off.  Either way this needs to happen for 2.6.21 since dynticks
  has gone in.

Signed-off-by: Con Kolivas 
Acked-by: Ingo Molnar 
Cc: Nick Piggin 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[POWERPC] QE: clean up ucc_slow.c and ucc_fast.c

2007-02-17T22:12:54+00:00

Refactored and cleaned up ucc_fast.c and ucc_slow.c so that the two files
look more alike and are easier to read.  Removed uccf_printk() and related
functions, because they were just front-ends to printk().  Fixed some
spacing and tabbing issues.  Minor optimizations of some code.  Changed
the type of some variables to their proper type (mostly buffer
descriptors).

Signed-off-by: Timur Tabi 
Signed-off-by: Kumar Gala