Commit Graph

2752 Commits

Author SHA1 Message Date
Masato Noguchi
cfd529b25d [CELL] spufs: remove needless context save/restore code
The following steps are not needed in the SPE context save/restore
paths:

Save Step 12: save_mfc_decr()
  save suspend_time to CSA (It will be done by step 14)
  save ch 7 (decrementer value will be saved in LSCSA by spe-side step 10)

Restore Step 59: restore_ch_part1()
  restore ch 1 (it will be done by spe-side step 15)

This change removes the unnecessary steps.

Signed-off-by: Masato Noguchi <Masato.Noguchi@jp.sony.com>
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
2007-07-20 21:41:54 +02:00
Jeremy Kerr
daced0f718 [CELL] spufs: fix array size of channel index
Based on a fix from Masato Noguchi <Masato.Noguchi@jp.sony.com>.

Remove the (incorrect) array size declarations in the spufs channel
arrays, and use ARRAY_SIZE rather than hardcoded values.

Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
2007-07-20 21:41:53 +02:00
Christoph Hellwig
27b1ea091f [CELL] spufs: make sure context are scheduled again after spu_acquire_saved
Currently a process is removed from the physical spu when spu_acquire_saved
is saved but never put back.  This patch adds a new spu_release_saved
that is to be paired with spu_acquire_saved and put the process back if
it has been in RUNNABLE state before.

Niether Jeremy not be are entirely happy about this exact patch because
it adds another spu_activate call outside of the owner thread, but I
feel this is the best short-term fix we can come up with.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
2007-07-20 21:41:52 +02:00
Andre Detsch
27ec41d3a1 [CELL] spufs: add spu stats in sysfs and ctx stat file in spufs
This patch exports per-context statistics in spufs as long as spu
statistics in sysfs.

It was formed by merging:
"spufs: add spu stats in sysfs"   From: Christoph Hellwig
"spufs: add stat file to spufs"   From: Christoph Hellwig
"spufs: fix libassist accounting" From: Jeremy Kerr
"spusched: fix spu utilization statistics" From: Luke Browning
And some adjustments by myself, after suggestions on cbe-oss-dev.

Having separate patches was making the review process harder
than it should, as we end up integrating spus and ctx statistics
accounting much more than it was on the first implementation.

Signed-off-by: Andre Detsch <adetsch@br.ibm.com>
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
2007-07-20 21:41:50 +02:00
Jeremy Kerr
e840cfe681 [CELL] spufs: Remove spurious WARN_ON for spu_deactivate for NOSCHED contexts
In 6cbf93960e64f313f6e247cbca7afaa50e3ee2c we added a WARN_ON for
calling spu_deactivate on contexts created with the SPU_CREATE_NOSCHED
flag. However, all NOSCHED contexts will need to be deactivated when
the context is destroyed, so this gives a spurious warning when any
NOSCHED context is closed.

This change removes the WARN_ON.

Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
2007-07-20 21:41:49 +02:00
Jeremy Kerr
d054b36ffd [CELL] spufs: Make signal-notification files readonly for NOSCHED contexts
Reading from the signal{1,2} files requires a spu_acquire_saved, so
make these files write-only for contexts created with
SPU_CREATE_NOSCHED.

Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
2007-07-20 21:41:48 +02:00
Kazunori Asayama
49776d30ae [CELL] spufs: Avoid unexpectedly restaring MFC during context save
The current SPU context saving procedure in SPUFS unexpectedly
restarts MFC when halting decrementer, because MFC_CNTL[Dh] is set
without MFC_CNTL[Sm]. This bug causes, for example, saving broken DMA
queues. Here is a patch to fix the problem.

Signed-off-by: Kazunori Asayama <asayama@sm.sony.co.jp>
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
2007-07-20 21:41:47 +02:00
Sebastian Siewior
d145031755 [CELL] spufs: remove section mismatch warning
WARNING: arch/powerpc/platforms/cell/spufs/spufs.o(.init.text+0x158): Section
mismatch: reference to .exit.text:.spu_sched_exit (between '.init_module' and
'.spu_sched_init')

was introduced by c99c1994a2
This patch removes the warning.

Cc: Christoph Hellwig <hch@lst.de>
Signed-off-by: Sebastian Siewior <sebastian@breakpoint.cc>
Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
2007-07-20 21:41:46 +02:00
Michael Ellerman
ce21b3c964 [CELL] add support for MSI on Axon-based Cell systems
This patch adds support for the setup and decoding of MSIs
on Axon-based Cell systems, using the MSIC mechanism.

This involves setting up an area of BE memory which the Axon
then uses as a FIFO for MSI messages. When one or more MSIs
are decoded by the MSIC we receive an interrupt on the MPIC,
and the MSI messages are written into the FIFO. At the moment
we use a 64KB FIFO, one per MSIC/BE.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
2007-07-20 21:41:45 +02:00
Andre Detsch
8d2655e621 [CELL] saving spus information for kexec crash
This patch adds support for investigating spus information after a
kernel crash event, through kdump vmcore file.
Implementation is based on xmon code, but the new functionality was
kept independent from xmon.

Signed-off-by: Lucio Jose Herculano Correia <luciojhc@br.ibm.com>
Signed-off-by: Andre Detsch <adetsch@br.ibm.com>
Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
2007-07-20 21:41:43 +02:00
Maxim Shchetynin
dbdf04c401 [CELL] driver for DDR2 memory on AXON
The Axon bridge chip used on new Cell/B.E. based blade servers
comes with a DDR2 memory controller that can be used to
attach cheap memory modules, as opposed to the high-speed
XDR memory that is used by the CPU itself.

Since the memory controller does not participate in the
cache coherency protocol, we can not use the memory direcly
for Linux applications, but by providing a block device
it can be used for swap space, temporary file storage and
through the use of the direct_access block device operation
for mapping into user addresses, when it is mounted with
an appropriate file system.

Signed-off-by: Maxim Shchetynin <maxim@de.ibm.com>
Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
2007-07-20 21:41:42 +02:00
Jean-Christophe DUBOIS
b86ce01c77 [CELL] allow linux to map Cell regs on legacy SLOF tree.
The platforms missing the "cpus" property in the "be" node are mono-Cell
platforms such as CAB or Getaway.

Therefore it is possible to assume that if there is no "cpus" properties
under the "be" node then we can safely return the "device node" without
more checking. This is a bit hacky but ... it allows it to work on
these platforms.

Signed-off-by: Jean-Christophe DUBOIS <jcd@tribudubois.net>
Acked-by: Christian Krafft <krafft@de.ibm.com>
Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
2007-07-20 21:41:41 +02:00
Jean-Christophe DUBOIS
827e3648dc [CELL] fix cbe_thermal for legacy SLOF tree.
Previous patch changed based on Christian Krafft's comment.

On some legacy SLOF tree the generic code is unable to ioremap some Cell BE
registers. Therefore the "generic" functions are returning a NULL pointer,
triggering a crash on such platforms.

Let's handle this more gracefully.

Signed-off-by: Jean-Christophe DUBOIS <jcd@tribudubois.net>
Acked-by: Christian Kraff <krafft@de.ibm.com>
Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
2007-07-20 21:41:40 +02:00
Jean-Christophe DUBOIS
64bafa9db7 [CELL] fix cbe_cpufreq for legacy SLOF tree.
Previous patch changed based on Christian Krafft's comment.

On some legacy SLOF tree the generic code is unable to ioremap some Cell BE
registers. Therefore the "generic" functions are returning a NULL pointer,
triggering a crash on such platforms.

Let's handle this more gracefully.

Signed-off-by: Jean-Christophe DUBOIS <jcd@tribudubois.net>
Acked-by: Christian Kraff <krafft@de.ibm.com>
Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
2007-07-20 21:41:39 +02:00
Christian Krafft
74889e41d9 [CELL] cbe_cpufreq: reorganize code
This patch reorganizes the code of the driver into three files.
Two cbe_cpufreq_pmi.c and cbe_cpufreq_pervasive.c care about hardware.
cbe_cpufreq.c contains the logic.
There is no changed behaviour, except that the PMI related function
is now located in a seperate module cbe_cpufreq_pmi. This module
will be required by cbe_cpufreq, if CONFIG_CBE_CPUFREQ_PMI has been set.

Signed-off-by: Christian Krafft <krafft@de.ibm.com>
Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
2007-07-20 21:41:38 +02:00
Christian Krafft
1e21fd5af3 [CELL] cbe_cpufreq: fix minor issues
Minor issues have been fixed:
* added a missing call to of_node_put()
* signedness of a function parameter
* added some line breaks
* changed global pmi_frequency_limit to a
  per node pmi_slow_mode_limit array

Signed-off-by: Christian Krafft <krafft@de.ibm.com>
Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
2007-07-20 21:41:37 +02:00
Christian Krafft
e5ecc87192 [CELL] cbe_cpufreq: fix initialization
This patch fixes the initialization of the cbe_cpufreq driver.
The code that initializes the PMI related functions was called per cpu:
* registering cpufreq notifier block
* registering a pmi handler

This ends in a bug that the notifier block gets called in an endless loop.
The initialization code is being put to the
module init code path by this patch. This way it only gets called once.

Signed-off-by: Christian Krafft <krafft@de.ibm.com>
Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
2007-07-20 21:41:36 +02:00
Christian Krafft
a964b9be3e [CELL] cbe_cpufreq: fix latency measurement
This patch fixes the debug code that calculates the transition time when
changing the slow modes on a Cell BE cpu.

Signed-off-by: Christian Krafft <krafft@de.ibm.com>
Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
2007-07-20 21:41:35 +02:00
Christian Krafft
813f90728e [CELL] pmi: remove support for mutiple devices.
The pmi driver got simplified by removing support for multiple devices.
As there is no more than one pmi device per maschine, there is no need to
specify the device for listening and sending messages.

This way the caller (cbe_cpufreq) doesn't need to scan the device tree.
When registering the handler on a board without a pmi
interface, pmi.c will just return -ENODEV.

The patch that fixed the breakage of cell_defconfig has been
broken out of the earlier version of this patch. So this is
the version that applies cleanly on top of it.

Signed-off-by: Christian Krafft <krafft@de.ibm.com>
Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
2007-07-20 21:41:34 +02:00
Stephen Rothwell
3f23de10f2 Create drivers/of/platform.c
and populate it with the common parts from PowerPC and Sparc[64].

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Acked-by: Paul Mackerras <paulus@samba.org>
Acked-by: David S. Miller <davem@davemloft.net>
2007-07-20 14:25:51 +10:00
Stephen Rothwell
f85ff3056c Begin to consolidate of_device.c
This moves all the common parts for the Sparc, Sparc64 and PowerPC
of_device.c files into drivers/of/device.c.

Apart from the simple move, Sparc gains of_match_node() and a call to
of_node_put in of_release_dev().  PowerPC gains better recovery if
device_create_file() fails in of_device_register().

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Acked-by: Paul Mackerras <paulus@samba.org>
Acked-by: David S. Miller <davem@davemloft.net>
2007-07-20 13:39:59 +10:00
Stephen Rothwell
1ef4d4242d Consolidate of_find_node_by routines
This consolidates the routines of_find_node_by_path, of_find_node_by_name,
of_find_node_by_type and of_find_compatible_device.  Again, the comparison
of strings are done differently by Sparc and PowerPC and also these add
read_locks around the iterations.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Acked-by: Paul Mackerras <paulus@samba.org>
Acked-by: David S. Miller <davem@davemloft.net>
2007-07-20 13:39:06 +10:00
Stephen Rothwell
d1cd355a5e Consolidate of_get_next_child
This adds a read_lock around the child/next accesses on Sparc.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Acked-by: Paul Mackerras <paulus@samba.org>
Acked-by: David S. Miller <davem@davemloft.net>
2007-07-20 13:34:26 +10:00
Stephen Rothwell
e679c5f445 Consolidate of_get_parent
This requires creating dummy of_node_{get,put} routines for sparc and
sparc64.  It also adds a read_lock around the parent accesses.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Acked-by: Paul Mackerras <paulus@samba.org>
Acked-by: David S. Miller <davem@davemloft.net>
2007-07-20 13:32:58 +10:00
Stephen Rothwell
581b605a83 Consolidate of_find_property
The only change here is that a readlock is taken while the property list
is being traversed on Sparc where it was not taken previously.

Also, Sparc uses strcasecmp to compare property names while PowerPC
uses strcmp.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Acked-by: Paul Mackerras <paulus@samba.org>
Acked-by: David S. Miller <davem@davemloft.net>
2007-07-20 13:32:24 +10:00
Stephen Rothwell
0081cbc373 Consolidate of_device_is_compatible
The only difference here is that Sparc uses strncmp to match compatibility
names while PowerPC uses strncasecmp.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Acked-by: Paul Mackerras <paulus@samba.org>
Acked-by: David S. Miller <davem@davemloft.net>
2007-07-20 13:29:51 +10:00
Stephen Rothwell
97e873e5c8 Start split out of common open firmware code
This creates drivers/of/base.c (depending on CONFIG_OF) and puts
the first trivially common bits from the prom.c files into it.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Acked-by: Paul Mackerras <paulus@samba.org>
Acked-by: David S. Miller <davem@davemloft.net>
2007-07-20 13:28:41 +10:00
Paul Mundt
20c2df83d2 mm: Remove slab destructors from kmem_cache_create().
Slab destructors were no longer supported after Christoph's
c59def9f22 change. They've been
BUGs for both slab and slub, and slob never supported them
either.

This rips out support for the dtor pointer from kmem_cache_create()
completely and fixes up every single callsite in the kernel (there were
about 224, not including the slab allocator definitions themselves,
or the documentation references).

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-07-20 10:11:58 +09:00
Christoph Hellwig
8042297747 fix spufs build after ->fault changes
83c54070ee broke spufs by incorrectly
updating the code, this patch gets it to compile again.

It's probably still broken due to the scheduler changes, but this
at least makes sure cell kernels can still be built.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Cc: Arnd Bergmann <arnd@arndb.de>
Acked-by: Geoff Levand <geoffrey.levand@am.sony.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Nick Piggin <nickpiggin@yahoo.com.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-19 14:30:14 -07:00
Linus Torvalds
efffbeee5b Merge git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild
* git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild: (33 commits)
  xtensa: use DATA_DATA in xtensa
  powerpc: add missing DATA_DATA to powerpc
  cris: use DATA_DATA in cris
  kallsyms: remove usage of memmem and _GNU_SOURCE from scripts/kallsyms.c
  kbuild: use -fno-optimize-sibling-calls unconditionally
  kconfig: reset generated values only if Kconfig and .config agree.
  kbuild: fix the warning when running make tags
  kconfig: strip 'CONFIG_' automatically in kernel configuration search
  kbuild: use POSIX BRE in headers install target
  Whitelist references from __dbe_table to .init
  modpost white list pattern adjustment
  kbuild: do section mismatch check on full vmlinux
  kbuild: whitelist references from variables named _timer to .init.text
  kbuild: remove hardcoded _logo names from modpost
  kbuild: remove hardcoded apic_es7000 from modpost
  kbuild: warn about references from .init.text to .exit.text
  kbuild: consolidate section checks
  kbuild: refactor code in modpost to improve maintainability
  kbuild: ignore section mismatch warnings originating from .note section
  kbuild: .paravirtprobe section is obsolete, so modpost doesn't need to handle it
  ...
2007-07-19 14:28:19 -07:00
Yoann Padioleau
dd00cc486a some kmalloc/memset ->kzalloc (tree wide)
Transform some calls to kmalloc/memset to a single kzalloc (or kcalloc).

Here is a short excerpt of the semantic patch performing
this transformation:

@@
type T2;
expression x;
identifier f,fld;
expression E;
expression E1,E2;
expression e1,e2,e3,y;
statement S;
@@

 x =
- kmalloc
+ kzalloc
  (E1,E2)
  ...  when != \(x->fld=E;\|y=f(...,x,...);\|f(...,x,...);\|x=E;\|while(...) S\|for(e1;e2;e3) S\)
- memset((T2)x,0,E1);

@@
expression E1,E2,E3;
@@

- kzalloc(E1 * E2,E3)
+ kcalloc(E1,E2,E3)

[akpm@linux-foundation.org: get kcalloc args the right way around]
Signed-off-by: Yoann Padioleau <padator@wanadoo.fr>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Acked-by: Russell King <rmk@arm.linux.org.uk>
Cc: Bryan Wu <bryan.wu@analog.com>
Acked-by: Jiri Slaby <jirislaby@gmail.com>
Cc: Dave Airlie <airlied@linux.ie>
Acked-by: Roland Dreier <rolandd@cisco.com>
Cc: Jiri Kosina <jkosina@suse.cz>
Acked-by: Dmitry Torokhov <dtor@mail.ru>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Acked-by: Mauro Carvalho Chehab <mchehab@infradead.org>
Acked-by: Pierre Ossman <drzeus-list@drzeus.cx>
Cc: Jeff Garzik <jeff@garzik.org>
Cc: "David S. Miller" <davem@davemloft.net>
Acked-by: Greg KH <greg@kroah.com>
Cc: James Bottomley <James.Bottomley@steeleye.com>
Cc: "Antonino A. Daplas" <adaplas@pol.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-19 10:04:50 -07:00
Roland McGrath
8fb775ee58 powerpc: Put allocated ELF notes in read-only data segment
This changes the powerpc linker script to use the asm-generic NOTES macro so
that ELF note sections with SHF_ALLOC set are linked into the kernel image
along with other read-only data.  The PT_NOTE also points to their location.

This paves the way for putting useful build-time information into ELF notes
that can be found easily later in a kernel memory dump.

Signed-off-by: Roland McGrath <roland@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-19 10:04:47 -07:00
Fenghua Yu
5fb7dc37dc define new percpu interface for shared data
per cpu data section contains two types of data.  One set which is
exclusively accessed by the local cpu and the other set which is per cpu,
but also shared by remote cpus.  In the current kernel, these two sets are
not clearely separated out.  This can potentially cause the same data
cacheline shared between the two sets of data, which will result in
unnecessary bouncing of the cacheline between cpus.

One way to fix the problem is to cacheline align the remotely accessed per
cpu data, both at the beginning and at the end.  Because of the padding at
both ends, this will likely cause some memory wastage and also the
interface to achieve this is not clean.

This patch:

Moves the remotely accessed per cpu data (which is currently marked
as ____cacheline_aligned_in_smp) into a different section, where all the data
elements are cacheline aligned. And as such, this differentiates the local
only data and remotely accessed data cleanly.

Signed-off-by: Fenghua Yu <fenghua.yu@intel.com>
Acked-by: Suresh Siddha <suresh.b.siddha@intel.com>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Christoph Lameter <clameter@sgi.com>
Cc: <linux-arch@vger.kernel.org>
Cc: "Luck, Tony" <tony.luck@intel.com>
Cc: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-19 10:04:44 -07:00
Michael Ellerman
3d7e33825d jprobes: make jprobes a little safer for users
I realise jprobes are a razor-blades-included type of interface, but that
doesn't mean we can't try and make them safer to use.  This guy I know once
wrote code like this:

struct jprobe jp = { .kp.symbol_name = "foo", .entry = "jprobe_foo" };

And then his kernel exploded. Oops.

This patch adds an arch hook, arch_deref_entry_point() (I don't like it
either) which takes the void * in a struct jprobe, and gives back the text
address that it represents.

We can then use that in register_jprobe() to check that the entry point we're
passed is actually in the kernel text, rather than just some random value.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Cc: Prasanna S Panchamukhi <prasanna@in.ibm.com>
Acked-by: Ananth N Mavinakayanahalli <ananth@in.ibm.com>
Cc: Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com>
Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-19 10:04:44 -07:00
Nick Piggin
83c54070ee mm: fault feedback #2
This patch completes Linus's wish that the fault return codes be made into
bit flags, which I agree makes everything nicer.  This requires requires
all handle_mm_fault callers to be modified (possibly the modifications
should go further and do things like fault accounting in handle_mm_fault --
however that would be for another patch).

[akpm@linux-foundation.org: fix alpha build]
[akpm@linux-foundation.org: fix s390 build]
[akpm@linux-foundation.org: fix sparc build]
[akpm@linux-foundation.org: fix sparc64 build]
[akpm@linux-foundation.org: fix ia64 build]
Signed-off-by: Nick Piggin <npiggin@suse.de>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: Ian Molton <spyro@f2s.com>
Cc: Bryan Wu <bryan.wu@analog.com>
Cc: Mikael Starvik <starvik@axis.com>
Cc: David Howells <dhowells@redhat.com>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: "Luck, Tony" <tony.luck@intel.com>
Cc: Hirokazu Takata <takata@linux-m32r.org>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Roman Zippel <zippel@linux-m68k.org>
Cc: Greg Ungerer <gerg@uclinux.org>
Cc: Matthew Wilcox <willy@debian.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: Kazumoto Kojima <kkojima@rr.iij4u.or.jp>
Cc: Richard Curnow <rc@rc0.org.uk>
Cc: William Lee Irwin III <wli@holomorphy.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jeff Dike <jdike@addtoit.com>
Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Cc: Miles Bader <uclinux-v850@lsi.nec.co.jp>
Cc: Chris Zankel <chris@zankel.net>
Acked-by: Kyle McMartin <kyle@mcmartin.ca>
Acked-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
Acked-by: Ralf Baechle <ralf@linux-mips.org>
Acked-by: Andi Kleen <ak@muc.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
[ Still apparently needs some ARM and PPC loving - Linus ]
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-19 10:04:41 -07:00
Andy Fleming
7132ab7f6e Fix RGMII-ID handling in gianfar
The TSEC/eTSEC can detect the interface to the PHY automatically,
but it isn't able to detect whether the RGMII connection needs internal
delay.  So we need to detect that change in the device tree, propagate
it to the platform data, and then check it if we're in RGMII.  This fixes
a bug on the 8641D HPCN board where the Vitesse PHY doesn't use the delay
for RGMII.

Signed-off-by: Andy Fleming <afleming@freescale.com>
2007-07-18 18:29:37 -04:00
Andy Fleming
cc65185d40 Add phy-connection-type to gianfar nodes
The TSEC/eTSEC automatically detect their PHY interface type, unless
the type is RGMII-ID (RGMII with internal delay).  In that situation,
it just detects RGMII.  In order to fix this, we need to pass in rgmii-id
if that is the connection type.

Signed-off-by: Andy Fleming <afleming@freescale.com>
2007-07-18 18:29:37 -04:00
Linus Torvalds
d756d10e24 Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4
* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
  ext4: extent macros cleanup
  Fix compilation with EXT_DEBUG, also fix leXX_to_cpu conversions.
  ext4: remove extra IS_RDONLY() check
  ext4: Use is_power_of_2()
  Use zero_user_page() in ext4 where possible
  ext4: Remove 65000 subdirectory limit
  ext4: Expand extra_inodes space per the s_{want,min}_extra_isize fields 
  ext4: Add nanosecond timestamps
  jbd2: Move jbd2-debug file to debugfs
  jbd2: Fix CONFIG_JBD_DEBUG ifdef to be CONFIG_JBD2_DEBUG
  ext4: Set the journal JBD2_FEATURE_INCOMPAT_64BIT on large devices
  ext4: Make extents code sanely handle on-disk corruption
  ext4: copy i_flags to inode flags on write
  ext4: Enable extents by default
  Change on-disk format to support 2^15 uninitialized extents
  write support for preallocated blocks
  fallocate support in ext4
  sys_fallocate() implementation on i386, x86_64 and powerpc
2007-07-18 10:32:00 -07:00
Tony Breeds
826ea8f22c Revert "[POWERPC] Do firmware feature fixups after features are initialised"
This reverts commit 5a26f6bbb7.

The original patch causes boot failures when built with ppc64_defconfig.  The
quickest fix is to revert it while alterates are investigated.

Signed-off-by: Tony Breeds <tony@bakeyournoodle.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-18 10:17:39 -07:00
Tony Breeds
4f3731da16 Fix compile failure in arch/powerpc/kernel/pci-common.c
This fixes the fallout from the recent powerpc merge (commit
489de30259):

   CC      arch/powerpc/kernel/pci-common.o
  arch/powerpc/kernel/pci-common.c:160: error: conflicting types for 'pcibios_add_platform_entries'
  include/linux/pci.h:889: error: previous declaration of 'pcibios_add_platform_entries' was here

Signed-off-by: Tony Breeds <tony@bakeyournoodle.com>
Tested-by: Bret Towe <magnade@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-18 10:17:39 -07:00
Amit Arora
97ac73506c sys_fallocate() implementation on i386, x86_64 and powerpc
fallocate() is a new system call being proposed here which will allow
applications to preallocate space to any file(s) in a file system.
Each file system implementation that wants to use this feature will need
to support an inode operation called ->fallocate().
Applications can use this feature to avoid fragmentation to certain
level and thus get faster access speed. With preallocation, applications
also get a guarantee of space for particular file(s) - even if later the
the system becomes full.

Currently, glibc provides an interface called posix_fallocate() which
can be used for similar cause. Though this has the advantage of working
on all file systems, but it is quite slow (since it writes zeroes to
each block that has to be preallocated). Without a doubt, file systems
can do this more efficiently within the kernel, by implementing
the proposed fallocate() system call. It is expected that
posix_fallocate() will be modified to call this new system call first
and incase the kernel/filesystem does not implement it, it should fall
back to the current implementation of writing zeroes to the new blocks.
ToDos:
1. Implementation on other architectures (other than i386, x86_64,
   and ppc). Patches for s390(x) and ia64 are already available from
   previous posts, but it was decided that they should be added later
   once fallocate is in the mainline. Hence not including those patches
   in this take.
2. Changes to glibc,
   a) to support fallocate() system call
   b) to make posix_fallocate() and posix_fallocate64() call fallocate()

Signed-off-by: Amit Arora <aarora@in.ibm.com>
2007-07-17 21:42:44 -04:00
Geert Uytterhoeven
bce9451310 Cell: Draw SPE helper penguin logos
Let spu_management_ops.enumerate_spus() return the number of found SPEs
and use that information to draw some little helper penguin logos.

Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-By: James Simmons <jsimmons@infradead.org>
Cc: "Antonino A. Daplas" <adaplas@pol.net>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-17 10:23:13 -07:00
Ananth N Mavinakayanahalli
87a7defb0d Kprobes on select architectures no longer EXPERIMENTAL
Based on usage and testing over the past couple of years, kprobes on
i386, ia64, powerpc and x86_64 is no longer EXPERIMENTAL.

This is a follow-up to Robert P.J. Day's patch making "Instrumentation
support" non-EXPERIMENTAL:

	http://marc.info/?l=linux-kernel&m=118396955423812&w=2

Arch maintainers for sparc64, avr32 and s390 need to take a similar call.

Signed-off-by: Ananth N Mavinakayanahalli <ananth@in.ibm.com>
Cc: Andi Kleen <ak@suse.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: "Luck, Tony" <tony.luck@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-17 10:23:03 -07:00
Alexey Dobriyan
f284ce7269 PTRACE_POKEDATA consolidation
Identical implementations of PTRACE_POKEDATA go into generic_ptrace_pokedata()
function.

AFAICS, fix bug on xtensa where successful PTRACE_POKEDATA will nevertheless
return EPERM.

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: <linux-arch@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-17 10:23:03 -07:00
Alexey Dobriyan
7664732315 PTRACE_PEEKDATA consolidation
Identical implementations of PTRACE_PEEKDATA go into generic_ptrace_peekdata()
function.

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: <linux-arch@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-17 10:23:03 -07:00
Pavel Emelianov
bcdcd8e725 Report that kernel is tainted if there was an OOPS
If the kernel OOPSed or BUGed then it probably should be considered as
tainted.  Thus, all subsequent OOPSes and SysRq dumps will report the
tainted kernel.  This saves a lot of time explaining oddities in the
calltraces.

Signed-off-by: Pavel Emelianov <xemul@openvz.org>
Acked-by: Randy Dunlap <randy.dunlap@oracle.com>
Cc: <linux-arch@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
[ Added parisc patch from Matthew Wilson  -Linus ]
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-17 10:23:02 -07:00
Vitaly Bordug
99121c0da3 powerpc: 8xx: fix whitespace and indentation
Rolling forward PCMCIA driver, it was discovered that the indentation in
existing one, as well as in BSP side are very odd.  This patch is just result
of Lindent run ontop of culprit files.

Signed-off-by: Vitaly Bordug <vitb@kernel.crashing.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Olof Johansson <olof@lixom.net>
Cc: Dominik Brodowski <linux@dominikbrodowski.net>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Kumar Gala <galak@gate.crashing.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-17 10:23:02 -07:00
Mathieu Desnoyers
3ae0aa9f45 powerpc: add missing DATA_DATA to powerpc
* Sam Ravnborg (sam@ravnborg.org) wrote:
> From your patch it looks like I originally missed out
> powerpc + xtensa when introducing DATA_DATA - would be nice if
> you could fix that.
>
> 	Sam

Add missing DATA_DATA in powerpc

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
Cc: Paul Mackerras <paulus@samba.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
--
 arch/powerpc/kernel/vmlinux.lds.S |    4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)
2007-07-17 14:55:38 +02:00
Linus Torvalds
489de30259 Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc
* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc: (209 commits)
  [POWERPC] Create add_rtc() function to enable the RTC CMOS driver
  [POWERPC] Add H_ILLAN_ATTRIBUTES hcall number
  [POWERPC] xilinxfb: Parameterize xilinxfb platform device registration
  [POWERPC] Oprofile support for Power 5++
  [POWERPC] Enable arbitary speed tty ioctls and split input/output speed
  [POWERPC] Make drivers/char/hvc_console.c:khvcd() static
  [POWERPC] Remove dead code for preventing pread() and pwrite() calls
  [POWERPC] Remove unnecessary #undef printk from prom.c
  [POWERPC] Fix typo in Ebony default DTS
  [POWERPC] Check for NULL ppc_md.init_IRQ() before calling
  [POWERPC] Remove extra return statement
  [POWERPC] pasemi: Don't auto-select CONFIG_EMBEDDED
  [POWERPC] pasemi: Rename platform
  [POWERPC] arch/powerpc/kernel/sysfs.c: Move NUMA exports
  [POWERPC] Add __read_mostly support for powerpc
  [POWERPC] Modify sched_clock() to make CONFIG_PRINTK_TIME more sane
  [POWERPC] Create a dummy zImage if no valid platform has been selected
  [POWERPC] PS3: Bootwrapper support.
  [POWERPC] powermac i2c: Use mutex
  [POWERPC] Schedule removal of arch/ppc
  ...

Fixed up conflicts manually in:

	Documentation/feature-removal-schedule.txt
	arch/powerpc/kernel/pci_32.c
	arch/powerpc/kernel/pci_64.c
	include/asm-powerpc/pci.h

and asked the powerpc people to double-check the result..
2007-07-16 17:58:08 -07:00
Segher Boessenkool
f5e83fa4c0 powerpc: Refuse to build 64-bit with GCC-4.2.0 and CONFIG_MODULES
...since this won't work (compiler bug, see <http://gcc.gnu.org/PR31490>).

Signed-off-by: Segher Boessenkool <segher@kernel.crashing.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2007-07-16 21:15:48 +02:00
Heiko Carstens
608e261968 generic bug: use show_regs() instead of dump_stack()
The current generic bug implementation has a call to dump_stack() in case a
WARN_ON(whatever) gets hit.  Since report_bug(), which calls dump_stack(),
gets called from an exception handler we can do better: just pass the
pt_regs structure to report_bug() and pass it to show_regs() in case of a
warning.  This will give more debug informations like register contents,
etc...  In addition this avoids some pointless lines that dump_stack()
emits, since it includes a stack backtrace of the exception handler which
is of no interest in case of a warning.  E.g.  on s390 the following lines
are currently always present in a stack backtrace if dump_stack() gets
called from report_bug():

 [<000000000001517a>] show_trace+0x92/0xe8)
 [<0000000000015270>] show_stack+0xa0/0xd0
 [<00000000000152ce>] dump_stack+0x2e/0x3c
 [<0000000000195450>] report_bug+0x98/0xf8
 [<0000000000016cc8>] illegal_op+0x1fc/0x21c
 [<00000000000227d6>] sysc_return+0x0/0x10

Acked-by: Jeremy Fitzhardinge <jeremy@goop.org>
Acked-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
Cc: Andi Kleen <ak@suse.de>
Cc: Kyle McMartin <kyle@parisc-linux.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-16 09:05:51 -07:00
Stephen Rothwell
f057eac0d7 Introduce CONFIG_VIRT_TO_BUS
Make some offending drivers depend on it and set CONFIG_ARCH_NO_VIRT_TO_BUS
for ppc64 so that we don't build those drivers.

This gets PowerPC allmodconfig and allyesconfig much closer to building.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Al Viro <viro@ftp.linux.org.uk>
Acked-by: David Miller <davem@davemloft.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-16 09:05:42 -07:00
Al Viro
0e81c666db the wrong variable checked after request_irq()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-15 16:40:51 -07:00
Matthew Wilcox
36e235901f PCI: Only build PCI syscalls on architectures that want them
The PCI syscalls are built on every architecture except X86, but only
a few have ever hooked them up.  Use a new Kconfig symbol to save a
couple of kB on the architectures that have never used the syscalls.
Tested on x86 and ia64 only.

Signed-off-by: Matthew Wilcox <matthew@wil.cx>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-07-11 16:02:13 -07:00
Auke Kok
b8a3a5214d PCI: read revision ID by default
Currently there are 97 occurrences where drivers need the pci
revision ID. We can do this once for all devices. Even the pci
subsystem needs the revision several times for quirks. The extra
u8 member pads out nicely in the pci_dev struct.

Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-07-11 16:02:09 -07:00
Michael Ellerman
a2cd52ca90 PCI: Make pcibios_add_platform_entries() return errors
Currently pcibios_add_platform_entries() returns void, but could fail,
so instead have it return an int and propagate errors up to
pci_create_sysfs_dev_files().

Fixes:
arch/powerpc/kernel/pci_64.c: In function 'pcibios_add_platform_entries':
arch/powerpc/kernel/pci_64.c:878: warning: ignoring return value of
	'device_create_file', declared with attribute warn_unused_result
arch/powerpc/kernel/pci_32.c: In function 'pcibios_add_platform_entries':
  arch/powerpc/kernel/pci_32.c:1043: warning: ignoring return value of
	'device_create_file', declared with attribute warn_unused_result

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-07-11 16:02:07 -07:00
Paul Mackerras
bf22f6fe2d Merge branch 'for-2.6.23' into merge 2007-07-11 13:28:26 +10:00
Wade Farnsworth
93ab471889 [POWERPC] Create add_rtc() function to enable the RTC CMOS driver
In order to use the RTC CMOS driver, each architecture must register a
platform device for the RTC.

This creates a function to register the platform device based on the RTC
device node and verifies that the RTC port against the hard-coded value
in asm/mc146818rtc.h.

Signed-off-by: Wade Farnsworth <wfarnsworth@mvista.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-07-11 13:24:40 +10:00
Mike Wolf
31a12cece7 [POWERPC] Oprofile support for Power 5++
This adds a new oprofile cpu type for Power 5 revision 3 chips.
The new name is ppc64/power5++ and is used so that the performance
counters can be set up correctly.

Signed-off-by: Mike Wolf <mjw@us.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-07-11 13:21:46 +10:00
Mathieu Desnoyers
1f945a86a8 [POWERPC] Remove unnecessary #undef printk from prom.c
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-07-10 22:03:25 +10:00
Li Yang
8203c17e5b [POWERPC] Fix typo in Ebony default DTS
Signed-off-by: Li Yang <leoli@freescale.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-07-10 22:03:16 +10:00
Sonny Rao
70584578ab [POWERPC] Check for NULL ppc_md.init_IRQ() before calling
Check to make sure ppc_md.init_IRQ has been set before calling it.

Signed-off-by: Sonny Rao <sonny@burdell.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-07-10 22:03:14 +10:00
Manish Ahuja
b3e998ee05 [POWERPC] Remove extra return statement
Found 2 instances of return one right after each other in
arch_add_memory().  This removes the superfluous one.

Signed-off-by: Manish Ahuja <mahuja@us.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-07-10 22:01:01 +10:00
Olof Johansson
bc6b73e14e [POWERPC] pasemi: Don't auto-select CONFIG_EMBEDDED
Disable auto-select of CONFIG_EMBEDDED.  ELECTRA_IDE selects
PATA_PLATFORM which should be sufficient.

Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-07-10 22:01:00 +10:00
Olof Johansson
d4875a217b [POWERPC] pasemi: Rename platform
Rename the pasemi platform to "pasemi" to be in line with the
platform's directory name.

Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-07-10 22:00:59 +10:00
Johannes Berg
12654f7764 [POWERPC] arch/powerpc/kernel/sysfs.c: Move NUMA exports
With !CONFIG_NUMA, these are static inlines in the header file so
don't generate exports for them in that case.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-07-10 22:00:57 +10:00
Tony Breeds
bd67fcf9ba [POWERPC] Add __read_mostly support for powerpc
Signed-off-by: Tony Breeds <tony@bakeyournoodle.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-07-10 22:00:56 +10:00
Tony Breeds
fc9069fe56 [POWERPC] Modify sched_clock() to make CONFIG_PRINTK_TIME more sane
When booting a current kernel with CONFIG_PRINTK_TIME enabled you'll
see messages like:

[    0.000000] time_init: decrementer frequency = 188.044000 MHz
[    0.000000] time_init: processor frequency   = 1504.352000 MHz
[3712914.436297] Console: colour dummy device 80x25

This cause by the initialisation of tb_to_ns_scale in time_init(), suddenly the
multiplication in sched_clock() now does something :).  This patch modifies
sched_clock() to report the offset since the machine booted so the same
printk's now look like:

[    0.000000] time_init: decrementer frequency = 188.044000 MHz
[    0.000000] time_init: processor frequency   = 1504.352000 MHz
[    0.000135] Console: colour dummy device 80x25

Effectivly including the uptime in printk()s.

This patch makes tb_to_ns_scale and tb_to_ns_shift static and
read_mostly for good measure.

Signed-off-by: Tony Breeds <tony@bakeyournoodle.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-07-10 22:00:54 +10:00
Tony Breeds
4bb092811c [POWERPC] Create a dummy zImage if no valid platform has been selected
This simply prevents a build error if no platform is selected.

Signed-off-by: Tony Breeds <tony@bakeyournoodle.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-07-10 22:00:52 +10:00
Geoff Levand
bafdb64577 [POWERPC] PS3: Bootwrapper support.
Add support to build the PS3 flash rom image and remove some unneeded
lmb calls.

The PS3's lv1 loader supports loading gzipped binary images from flash
rom to addr zero. The loader enters the image at addr 0x100.

In this implementation a bootwrapper overlay is use to arrange for the
kernel to be loaded to addr zero and to have a suitable bootwrapper
entry at 0x100.  To construct the rom image, 0x100 bytes from offset
0x100 in the kernel is copied to the bootwrapper symbol
__system_reset_kernel.  The 0x100 bytes at the bootwrapper symbol
__system_reset_overlay is then copied to offset 0x100.  At runtime the
bootwrapper program copies the 0x100 bytes at __system_reset_kernel to
addr 0x100.

zImage.ps3 is a wrapped image that contains a flat device tree, an lv1
compatible entry point, and an optional initrd.  otheros.bld is the gzip
compresed rom image built from zImage.ps3.  otheros.bld is suitable for
programming into the PS3 boot flash memory.

Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-07-10 21:56:40 +10:00
Johannes Berg
76a5b8bb35 [POWERPC] powermac i2c: Use mutex
Convert the semaphores in low_i2c that are used as mutexes to real
mutexes.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-07-10 21:55:54 +10:00
will schmidt
078f194045 [POWERPC] Oprofile enhanced instruction sampling support
Oprofile enhanced instruction sampling support.

When performing instruction sampling, the mmcra[SLOT] field can be used to
more accurately identify the address of the sampled instruction.

Tested on power4, js20, power5 and power5+.

Signed-off-by: Will Schmidt <will_schmidt@vnet.ibm.com>
cc: Maynard Johnson <maynardj@us.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-07-10 21:55:48 +10:00
Olaf Hering
f5e6a280d1 [POWERPC] Make two xmon variables static
xmon_early and xmon_off are only used in this file.

Signed-off-by: Olaf Hering <olaf@aepfle.de>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-07-10 21:55:46 +10:00
Michael Ellerman
94a3807c2a [POWERPC] Make the debugfs "powerpc" dir globally accessible
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 <michael@ellerman.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-07-10 21:53:50 +10:00
Wade Farnsworth
db0dbae9d9 [POWERPC] Add a check for keyboard/mouse device nodes in check_legacy_ioport()
The device tree for the MPC8641 HPCN does not implement the device type
property for I8042 nodes.

In addition to checking the I8042 node's device type, also match the
keyboard and/or mouse nodes' compatible property.

Signed-off-by: Wade Farnsworth <wfarnsworth@mvista.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-07-10 21:53:49 +10:00
Michael Ellerman
6a281856c0 [POWERPC] Add a warning to help trackdown device_node refcounting bugs
When the refcount for a device node goes to 0, we call the
destructor - of_node_release(). This should only happen if we've
already detached the node from the device tree.

So add a flag OF_DETACHED which tracks detached-ness, and if we
find ourselves in of_node_release() without it set, issue a
warning and don't free the device_node. To avoid warning
continuously reinitialise the kref to a sane value.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-07-10 21:53:47 +10:00
Michael Ellerman
d3b814bb1e [POWERPC] Generalise device_node flag interface
The struct device_node currently has a _flags variable, although
it's only used for one flag - OF_DYNAMIC.  Generalise the flag
accessors so we can use them with other flags in future.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-07-10 21:53:46 +10:00
Michael Ellerman
972d17c9db [POWERPC] Check for the root node in of_detach_node()
It's not sensible to call of_detach_node() on the root node,
but we should check for it just to be safe.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-07-10 21:53:45 +10:00
Roland Dreier
333e615483 [POWERPC] Add cputable entry for PowerPC 440SPe Rev. B
When adding the cputable entry for 440SPe Rev. B, we also need to
adjust the existing entries for 440SP Rev. A and 440SPe Rev. B so that
they look more bits of the PVR.  The 440SPe Rev. B has PVR 53421891,
which would match the current 440SP Rev. A pattern of 53xxx891.  To
distinguish between 440SP and 440SPe, we need to use the first three
digits of the PVR, which are respectively 532 and 534.

Signed-off-by: Roland Dreier <rolandd@cisco.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-07-10 21:53:44 +10:00
Christoph Hellwig
ca747ddf29 [POWERPC] Remove unused do_signal export
do_signal is never used in modular code (obviously), and no other
architecture exports it either.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-07-10 21:53:36 +10:00
Vitaly Bordug
b8ce2272be [POWERPC] dts: kill hardcoded phandles
Removed explicit linux,phandle usage.  Using references and labels now in PQ
and PQ2 boards currently supported in arch/powerpc.

Signed-off-by: Vitaly Bordug <vitb@kernel.crashing.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Olof Johansson <olof@lixom.net>
Cc: Dominik Brodowski <linux@dominikbrodowski.net>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-07-10 00:34:08 -05:00
Vitaly Bordug
80128ff79d [POWERPC] 8xx: mpc885ads pcmcia support
Adds support for PowerQuicc on-chip PCMCIA.  The driver is implemented as
of_device, so only arch/powerpc stuff is capable to use it, which now implies
only mpc885ads reference board.

To cope with the code that should be hooked inside driver, but is really board
specific (like set_voltage), global structure mpc8xx_pcmcia_ops holds
necessary function pointers that are filled in the BSP code.

[akpm@linux-foundation.org: whitespace diddles]
Signed-off-by: Vitaly Bordug <vitb@kernel.crashing.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Olof Johansson <olof@lixom.net>
Cc: Dominik Brodowski <linux@dominikbrodowski.net>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-07-10 00:33:51 -05:00
Kumar Gala
74a0ba61b1 [POWERPC] Move inline asm eieio to using eieio inline function
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 <galak@kernel.crashing.org>
2007-07-10 00:33:14 -05:00
Domen Puncer
d3e0e02804 [POWERPC] 52xx: sparse fixes
sparse caught these static functions / __iomem annotations
under arch/powerpc/platform/52xx/

Signed-off-by: Domen Puncer <domen.puncer@telargo.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-07-10 00:33:01 -05:00
Grant Likely
c03ac582fe [POWERPC] 83xx: Add USB support to mpc8349-mitx board port
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-07-10 00:32:54 -05:00
Li Yang
e5a94af847 [POWERPC] 83xx: USB platform code rework
Add 831x USB platform setup code and rework 834x USB platform setup code.
Move USB platform code to usb.c for different boards with CPU of the same
series to share the USB initialization code.

Signed-off-by: Li Yang <leoli@freescale.com>
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-07-10 00:30:04 -05:00
Roy Zang
749e80810d [POWERPC] Remove redundant pci_read_irq_line() function for 85xx platform
Remove redundant pci_read_irq_line() function for 85xx CDS board.
This function has been realized in common ppc pci code.

Signed-off-by: Roy Zang <tie-fei.zang@freescale.com>
Acked-by: Andy Fleming <afleming@freescale.com>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-07-09 23:24:50 -05:00
Kumar Gala
58fe255f63 [POWERPC] Fix up interrupt senses for MPC85xx boards
The PHY is active-low on the MPC85xx CDS and the 8560 ADS just had
the wrong sense for the internal PCI and CPM interrupts.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-07-03 03:05:58 -05:00
Kumar Gala
b3710f5a18 [POWERPC] Kill pcibios_enable_resources()
pcibios_enable_resources isn't used anywhere and not exported.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-07-03 02:51:24 -05:00
Jon Loeliger
327e22df9f [POWERPC] Replace use of GET_64BIT(prop, i) with of_read_number().
Remove uses of hack GET_64BIT() property macro and use
the more general of_read_number() function from prom.h
as suggested by Milton.

Signed-off-by: Jon Loeliger <jdl@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-07-03 02:48:17 -05:00
Kumar Gala
b533f8ae79 [POWERPC] Reworked interrupt numbers for OpenPIC based Freescale chips
Make the interrupt numbers match the OpenPIC spec intead of the
Freescale docs which distinguish between internal and external interrupts.

Now we can use the interrupt number directly to find the register offset
associated with it.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-07-03 02:35:35 -05:00
Timur Tabi
eae98266e7 [POWERPC] Fix MAC address entries for 83xx, 85xx, and 86xx device trees
For the 83xx, 85xx, and 86xx device trees, add a "local-mac-address" property
to every Ethernet node that didn't have one.  Add a comment indicating that
the "address" and/or "mac-address" properties are deprecated in DTS files
and will be removed at a later time.  Change all MAC address properties to
have a zero MAC address value.

Signed-off-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-07-03 02:05:41 -05:00
Li Yang
65482ccf9d [POWERPC] qe_lib: export symbols for QE driver to compile as module
Export symbols of qe_lib to be used by QE driver.

Signed-off-by: Li Yang <leoli@freescale.com>
Signed-off-by: Selvamuthukumar V <vsmkumar.84@gmail.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-07-03 02:04:51 -05:00
Roy Zang
68fb0d203f [POWERPC] 85xx: Fix 8548CDS reset bug
Begin with MPC8548 a new reset control register is added that asserts
HRESET_REQ to board logic.

This register is used for chip reset.

Signed-off-by: Roy Zang <tie-fei.zang@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-07-03 02:04:29 -05:00
Kazunori Asayama
8d038e0433 [POWERPC] spufs: Save dma_tagstatus_R in CSA
The function backing_ops->read_mfc_tagstatus() doesn't return a
correct value because the dma_tagstatus_R register isn't saved in
CSA.  This fixes the problem.

Signed-off-by: Kazunori Asayama <asayama@sm.sony.co.jp>
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-07-03 15:24:47 +10:00
Kazunori Asayama
933b0e3524 [POWERPC] spufs: Fix lost events in poll/epoll on mfc
When waiting for I/O events on mfc in an SPU context by using
poll/epoll syscalls, some of the events can be lost because of wrong
order of poll_wait and MFC status checks in the spufs_mfc_poll
function and non-atomic update of tagwait.  This fixes the
problem.

Signed-off-by: Kazunori Asayama <asayama@sm.sony.co.jp>
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-07-03 15:24:46 +10:00
Christoph Hellwig
fe2f896d67 [POWERPC] spufs: Add spu stats in sysfs
Export spu statistics in sysfs.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-07-03 15:24:46 +10:00
Christoph Hellwig
27449971e6 [POWERPC] spusched: Fix runqueue corruption
spu_activate can be called from multiple threads at the same time on
behalf of the same spu context.  We need to make sure to only add it
once to avoid runqueue corruption.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-07-03 15:24:46 +10:00
Christoph Hellwig
c77239b8be [POWERPC] spusched: Disable tick when not needed
Only enable the scheduler tick if we have any context waiting to be
scheduled.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-07-03 15:24:46 +10:00
Jeremy Kerr
08c9692b16 [POWERPC] spufs: Fix libassist accounting
We're currently too permissive with counting libassist calls - fix the
check on the SPE stop-and-signal status.

Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-07-03 15:24:46 +10:00