Some IRQ controllers don't need an ack function (e.g. OpenPIC on
PPC platforms) and for them we'd rather not have the overhead
of doing an indirect call to a function that does nothing.
Signed-off-by: NPaul Mackerras <paulus@samba.org>

This merges ppc_ksyms.c, puts back the actual do_execve call in
sys_execve, makes init_MMU call find_end_of_memory rather than
ppc_md.find_end_of_memory (every platform has a device tree
with a /memory node now, right?) and fixes some problems with the
mpic initialization on newworld powermacs.
Signed-off-by: NPaul Mackerras <paulus@samba.org>

Signed-off-by: NPaul Mackerras <paulus@samba.org>

Changed ppc32 so that cur_cpu_spec is just a single pointer for all CPUs.
Additionally, made call_setup_cpu check to see if the cpu_setup pointer
is NULL or not before calling the function.  This lets remove the dummy
cpu_setup calls that just return.
Signed-off-by: NKumar Gala <kumar.gala@freescale.com>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

Merged cputable.h between ppc32 and ppc64.  In doing this removed support
for the BEGIN_FTR_SECTION/END_FTR_SECTION macros in C code since they
dont compile correctly.  C code should use cpu_has_feature().  This is
based on Arnd Bergmann's initial patch.
Signed-off-by: NKumar Gala <kumar.gala@freescale.com>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

powerpc: Merge byteorder.h

Essentially adopts the 64-bit version of this file.  The 32-bit version had
been using unsigned ints for arguments/return values that were actually
only 16 bits - the new file uses __u16 for these items as in the 64-bit
version of the header.  The order of some of the asm constraints
in the 64-bit version was slightly different than the 32-bit version,
but they produce identical code.
Signed-off-by: NBecky Bruce <becky.bruce@freescale.com>
Signed-off-by: NKumar Gala <kumar.gala@freescale.com>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

There needs to be more cleanup after this.
Signed-off-by: NStephen Rothwell <sfr@canb.auug.org.au>

Move the iSeries specific parts of misc.S and ppc_ksyms.c
into powerpc/platforms/iseries.
Signed-off-by: NStephen Rothwell <sfr@canb.auug.org.au>

Signed-off-by: NStephen Rothwell <sfr@canb.auug.org.au>

Signed-off-by: NStephen Rothwell <sfr@canb.auug.org.au>

And rename it to smp.c.
Signed-off-by: NStephen Rothwell <sfr@canb.auug.org.au>

And rename it to vio.c.
Signed-off-by: NStephen Rothwell <sfr@canb.auug.org.au>

And rename it to vpdinfo.c.
Signed-off-by: NStephen Rothwell <sfr@canb.auug.org.au>

And rename it to irq.c.
Signed-off-by: NStephen Rothwell <sfr@canb.auug.org.au>

and rename it to pci.c.  This also required moving
arch/ppc64/kernel/pci.h into include/asm-powerpc (called
ppc-pci.h.
Signed-off-by: NStephen Rothwell <sfr@canb.auug.org.au>

And rename it to iommu.c
Signed-off-by: NStephen Rothwell <sfr@canb.auug.org.au>

And rename it to htab.c
Signed-off-by: NStephen Rothwell <sfr@canb.auug.org.au>

And renamed it to proc.c
Signed-off-by: NStephen Rothwell <sfr@canb.auug.org.au>

These two files were intimately connected, so just merge them.
Signed-off-by: NStephen Rothwell <sfr@canb.auug.org.au>

Rename it to hvcall.S and (so I can do that) rename hvcall.c
to hvlog.c - a more appropriate name.

Do some white space cleanups.
Signed-off-by: NStephen Rothwell <sfr@canb.auug.org.au>

Signed-off-by: NStephen Rothwell <sfr@canb.auug.org.au>

iSeries_setup.c becomes setup.c
iSeries_setup.h becomes setup.h
mf.c retains its name

Also moved iSeries_[gs]et_rtc_time and iSeries_get_boot_time into
mf.c since they are just small wrappers around mf_ functions.
Signed-off-by: NStephen Rothwell <sfr@canb.auug.org.au>

Also rename it to lpardata.c
Signed-off-by: NStephen Rothwell <sfr@canb.auug.org.au>

Also rename it to hvlpconfig.c
Signed-off-by: NStephen Rothwell <sfr@canb.auug.org.au>

I also move arch/ppc64/kernel/HvCall.c to
arch/powerpc/platforms/iseries/hvcall.c.
Signed-off-by: NStephen Rothwell <sfr@canb.auug.org.au>

We removed __pmacdata in the merge.
Signed-off-by: NStephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

Complete moving arch/ppc64/kernel/mpic.h,
        include/asm-ppc/reg.h, include/asm-ppc64/kdebug.h
	        and include/asm-ppc64/kprobes.h
Add arch/powerpc/platforms/Makefile and use it from
	arch/powerpc/Makefile
Introduce OLDARCH temporarily so we can point back to
	the originating architecture
Signed-off-by: NStephen Rothwell <sfr@canb.auug.org.au>

This creates the directory structure under arch/powerpc and a bunch
of Kconfig files.  It does a first-cut merge of arch/powerpc/mm,
arch/powerpc/lib and arch/powerpc/platforms/powermac.  This is enough
to build a 32-bit powermac kernel with ARCH=powerpc.

For now we are getting some unmerged files from arch/ppc/kernel and
arch/ppc/syslib, or arch/ppc64/kernel.  This makes some minor changes
to files in those directories and files outside arch/powerpc.

The boot directory is still not merged.  That's going to be interesting.
Signed-off-by: NPaul Mackerras <paulus@samba.org>

powerpc: Merge semaphore.h

Adopted the ppc64 version of semaphore.h.  The 32-bit version used
smp_wmb(), but recent updates to atomic.h mean this is no longer required.
The 64-bit version made use of unlikely(), which has been retained in the
combined version.

This patch requires the recent atomic.h patch.
Signed-off-by: NBecky Bruce <becky.bruce@freescale.com>
Signed-off-by: NKumar Gala <kumar.gala@freescale.com>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

Merge asm-ppc*/rwsem.h into include/asm-powerpc.
Removed smp_*mb() memory barriers from the ppc32 code
as they are now burried in the atomic_*() functions as
suggested by Paul, implemented by Arnd, and pushed out
by Becky.  I am not the droid you are looking for.

This patch depends on Becky's atomic.h merge patch.
Signed-off-by: NJon Loeliger <jdl@freescale.com>
Signed-off-by: NKumar Gala <kumar.gala@freescale.com>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

powerpc: Merge atomic.h and memory.h into powerpc

Merged atomic.h into include/powerpc.  Moved asm-style HMT_ defines from
memory.h into ppc_asm.h, where there were already HMT_defines; moved c-style
HMT_ defines to processor.h. Renamed memory.h to synch.h to better reflect
its contents.
Signed-off-by: NKumar Gala <kumar.gala@freescale.com>
Signed-off-by: NBecky Bruce <becky.bruce@freescale.com>
Signed-off-by: NJon Loeliger <linuxppc@jdl.com>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

Merge asm-ppc*/seccomp.h. Drop TIF_32BIT check.
Signed-off-by: NJon Loeliger <jdl@freescale.com>
Signed-off-by: NKumar Gala <kumar.gala@freescale.com>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

The spinlock_types.h merge renamed the structure for raw_spinlock_t to
match ppc64.  In doing so some of the spinlock macros/functions needed to
be updated to match.  Apparently, this seems to only be caught when
building power3.
Signed-off-by: NKumar Gala <kumar.gala@freescale.com>
Signed-off-by: NPaul Mackerras <paulus@samba.org>