Commit Graph

920 Commits

Author SHA1 Message Date
Stephen Rothwell
be9e95b17e [POWERPC] Make iSeries build without CONFIG_PCI
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-03-09 15:03:25 +11:00
Stephen Rothwell
57190708f1 [POWERPC] Create and use get_pci_dma_ops()
This allows us to hide pci_dma_ops.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-03-09 15:03:25 +11:00
Stephen Rothwell
9874777016 [POWERPC] Create and use set_pci_dma_ops
This will allow us to build without PCI easier.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-03-09 15:03:25 +11:00
Segher Boessenkool
44d7631bdb [POWERPC] PowerPC: select default image for Linkstation
Signed-off-by: Segher Boessenkool <segher@kernel.crashing.org>
Acked-by: G. Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-03-09 15:03:23 +11:00
Geert Uytterhoeven
8170f52489 [POWERPC] ps3: always make sure we're running on a PS3
Add missing checks to PS3 specific drivers ps3av and sys-manager to verify that
we are actually running on a PS3 (pointed out by Arnd).

Correct existing checks in other subsystems/drivers to return -ENODEV instead
of zero.

Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Acked-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-03-09 15:03:23 +11:00
Benjamin Herrenschmidt
b5d99e64bc [POWERPC] Fix warning in powermac pci.c
This fixes a warning due to unused result from pci_enable_device() in
powermac pci.c

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-03-08 04:09:34 +11:00
Benjamin Herrenschmidt
e71c5c38ed [POWERPC] Fix warning in powermac feature.c
This fixes a warning due to unused return from pci_enable_device() in
powermac feature.c core99_ata100_enable() function.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-03-08 04:09:34 +11:00
Ishizaki Kou
8388374f1c [POWERPC] Celleb: bug fix caused by not casting pointer types
This fixes a bug caused by changes of pointer type in
commit f1fda89522.

hose->cfg_addr type is "volatile unsigned int __iomem *", so
"hose->cfg_addr + X" will not make an intended address.

This patch also adds comments for usage of cfg_addr and cfg_data in
pci_controller structure.  We use them in irregular way, and the
original code is short of explanations about them.

Signed-off-by: Kou Ishizaki <kou.ishizaki@toshiba.co.jp>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-03-08 04:09:33 +11:00
Dale Farnsworth
84dd619e4d mv643xx_eth: Place explicit port number in mv643xx_eth_platform_data
We were using the platform_device.id field to identify which ethernet
port is used for mv643xx_eth device.  This is not generally correct.
It will be incorrect, for example, if a hardware platform uses a single
port but not the first port.  Here, we add an explicit port_number field
to struct mv643xx_eth_platform_data.

This makes the mv643xx_eth_platform_data structure required, but that
isn't an issue since all users currently provide it already.

Signed-off-by: Dale Farnsworth <dale@farnsworth.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-03-06 06:14:54 -05:00
Geert Uytterhoeven
3f555c700b [PATCH] ps3: introduce CONFIG_PS3_ADVANCED
ps3: Introduce CONFIG_PS3_ADVANCED, as suggested by Roman Zippel, and use
it to control questions about PS3 subsystems that may not be obvious for
the casual user.

This gets rid of the following warning on non-powerpc platforms: |
drivers/video/Kconfig:1604:warning: 'select' used by config symbol 'FB_PS3'
refer to undefined symbol 'PS3_PS3AV'

Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Acked-by: Geoff Levand <geoffrey.levand@am.sony.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Roman Zippel <zippel@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-01 14:53:38 -08:00
Richard Purdie
599a52d126 backlight: Separate backlight properties from backlight ops pointers
Per device data such as brightness belongs to the indivdual device
and should therefore be separate from the the backlight operation
function pointers. This patch splits the two types of data and
allows simplifcation of some code.

Signed-off-by: Richard Purdie <rpurdie@rpsys.net>
2007-02-20 09:26:53 +00:00
Richard Purdie
28ee086d5b backlight: Fix external uses of backlight internal semaphore
backlight_device->sem has a very specific use as documented in the
header file. The external users of this are using it for a different
reason, to serialise access to the update_status() method.

backlight users were supposed to implement their own internal
serialisation of update_status() if needed but everyone is doing
things differently and incorrectly. Therefore add a global mutex to
take care of serialisation for everyone, once and for all.

Locking for get_brightness remains optional since most users don't
need it.

Also update the lcd class in a similar way.

Signed-off-by: Richard Purdie <rpurdie@rpsys.net>
2007-02-20 08:38:45 +00:00
Linus Torvalds
5c56f46683 Merge git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc
* git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc: (34 commits)
  [POWERPC] 86xx: Cleaned up platform dts files
  [POWERPC] 85xx: Renamed MPC8568 MDS board code to match other boards
  [POWERPC] 85xx: Cleaning up machine probing
  [POWERPC] QE: clean up ucc_slow.c and ucc_fast.c
  [POWERPC] 85xx: Cleaned up platform dts files
  [POWERPC] 83xx: Renamed MPC8323 MDS dts and defconfig to match other boards
  [POWERPC] 83xx: Updated and renamed MPC8360PB to MPC836x MDS
  [POWERPC] 83xx: Use of_platform_bus_probe to setup QE devices
  [POWERPC] 83xx: use default value of loops_per_jiffy
  [POWERPC] 83xx: Remove obsolete setting of ROOT_DEV.
  [POWERPC] 83xx: Cleaning up machine probing and board initcalls
  [POWERPC] Dispose irq mapping when done in mpc52xx_serial.c
  [POWERPC] 86xx: Add missing of_node_put() in mpc86xx_hpcn_init_irq().
  [POWERPC] 8[56]xx: Remove obsolete setting of ROOT_DEV for 85xx and 86xx platforms.
  [POWERPC] pseries: Enabling auto poweron after power is restored.
  [POWERPC] use winbond libata instead of ide driver for pseries CD drives
  [POWERPC] powerpc: remove references to the obsolete linux,platform property
  [POWERPC] add of_get_mac_address and update fsl_soc.c to use it
  [POWERPC] 83xx: Cleaned up 83xx platform dts files
  [POWERPC] Fix bug with early ioremap and 64k pages
  ...
2007-02-19 13:05:14 -08:00
Kumar Gala
56d7b79402 Merge branch '85xx' into for_paulus 2007-02-17 16:32:46 -06:00
Kumar Gala
ffd8488171 Merge branch '83xx' into for_paulus 2007-02-17 16:32:41 -06:00
Kumar Gala
23f510bcd3 [POWERPC] 85xx: Renamed MPC8568 MDS board code to match other boards
Renamed the MPC8568 MDS platform code to follow other 85xx boards.  There
isn't anything specific about the 8568 MDS code that wouldn't apply to another
85xx MDS system at this point.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-02-17 16:29:36 -06:00
Kumar Gala
6936c62571 [POWERPC] 85xx: Cleaning up machine probing
Cleaned up the probing functionality to be more consistent across all 85xx
boards and actually check to see if we should be running on a given board.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-02-17 16:19:34 -06:00
Kumar Gala
975b893996 Merge branch 'master' into 85xx 2007-02-17 10:18:34 -06:00
Kumar Gala
322d05a1c4 [POWERPC] 83xx: Updated and renamed MPC8360PB to MPC836x MDS
The MPC836x PB board is really just one part of the MPC836x MDS.  We currently
name all other PB boards as MDS.  Removed all references to PB and replaced
with MDS.  Additionally renamed the .dts to match the defconfig (mpc836x_mds*).

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-02-17 10:13:56 -06:00
Kumar Gala
f7993ed57a [POWERPC] 83xx: Use of_platform_bus_probe to setup QE devices
Use of_platform_bus_probe to setup devices on the of_platform_bus since its
much cleaner.  We explicitly specify the bus ids since the we want to get rid
of the default mechanism in the future.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-02-17 09:56:49 -06:00
Kumar Gala
7c90c800d9 [POWERPC] 83xx: use default value of loops_per_jiffy
Use the default value setup by initialization of loops_per_jiffy, its close
enough for 83xx and will get fixed up by calibrate_delay().

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-02-17 09:42:18 -06:00
Kumar Gala
1eccad01ac [POWERPC] 83xx: Remove obsolete setting of ROOT_DEV.
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-02-17 09:25:57 -06:00
Kumar Gala
336c3c2ec7 [POWERPC] 83xx: Cleaning up machine probing and board initcalls
Cleaned up the probing functionality to be more consistent across all 83xx
boards and added machine_is() protection around board initcalls to ensure they
only do something if we are actually running on that board.

Additionally, removed some dead code on mpc832x_mds.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-02-17 09:10:44 -06:00
Kumar Gala
834aba0959 Merge branch '85xx' into for_paulus 2007-02-16 18:21:18 -06:00
Jon Loeliger
00e402d066 [POWERPC] 86xx: Add missing of_node_put() in mpc86xx_hpcn_init_irq().
Signed-off-by: Jon Loeliger <jdl@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-02-16 18:17:00 -06:00
Jon Loeliger
578f8f20f3 [POWERPC] 8[56]xx: Remove obsolete setting of ROOT_DEV for 85xx and 86xx platforms.
Signed-off-by: Jon Loeliger <jdl@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-02-16 18:14:08 -06:00
Manish Ahuja
5d30bf3097 [POWERPC] pseries: Enabling auto poweron after power is restored.
During power outages, the UPS notifies the system for a shutdown.
In the current setup, it isn't possible to poweron when power is
restored.  This patch fixes the issue by calling the right
ibm,power-off-ups token during such events.  It also adds a sysfs
interface so userspace can specify whether or not to power on when
power is restored.

Signed-off-by: Manish Ahuja <ahuja@austin.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-17 10:22:50 +11:00
Ingo Molnar
d7e25f3394 [PATCH] genirq: remove IRQ_DISABLED
Now that disable_irq() defaults to delayed-disable semantics, the IRQ_DISABLED
flag is not needed anymore.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-16 08:14:00 -08:00
Michael Ellerman
8c0238b3f1 [POWERPC] Fix cut and paste breakage in arch/powerpc/platforms/pseries/pseries.h
My "cleanup" patch (dce623e082) had a cut
and paste error for the !CONFIG_KEXEC case. Fifty lashes for me.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-16 14:00:20 +11:00
Ishizaki Kou
89680a8c3c [POWERPC] celleb: fix scc_uhc.c dependency
scc_uhc.c depends on CONFIG_PCI, not CONFIG_USB. Because CONFIG_PCI
is always "y" on Celleb platform, we move scc_uhc.o to obj-y.

Signed-off-by: Kou Ishizaki <kou.ishizaki@toshiba.co.jp>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-16 14:00:20 +11:00
Ishizaki Kou
2333eae215 [POWERPC] celleb: fix CONFIG_KEXEC dependency
celleb_kexec_cpu_down() depends on CONFIG_KEXEC.

Signed-off-by: Kou Ishizaki <kou.ishizaki@toshiba.co.jp>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-16 14:00:20 +11:00
Geoff Levand
fde5efd0e5 [POWERPC] PS3: System manager support
Add PS3 system manager support and the ppc_md routines restart() and
power_off().

The system manager provides an event notification mechanism for reporting
events like thermal alert and button presses.  It also provides support to
control system shutdown and startup.

Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-16 14:00:19 +11:00
Michael Ellerman
dce623e082 [POWERPC] Cleanup pseries kexec code
Move all the pseries kexec code into one file, platforms/pseries/kexec.c
Provide helpers for setting up ppc_md.kexec_cpu_down, so that we don't
have to have #ifdef CONFIG_KEXEC in setup.c

Move the initialisation of the ppc_md kexec callbacks into an init routine.
This is well and truly early enough to cause no change in behaviour, we
can't kexec until userspace has given us a kernel to kexec into.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-14 11:50:03 +11:00
Michael Ellerman
8feaeca23a [POWERPC] Cleanup pseries smp initialisation code
Move some extern declarations from setup.c into the new pseries.h.
While we're at it, provide dummy implementations for !SMP, to avoid
cluttering the C file with more #ifdefs.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-14 11:50:03 +11:00
Michael Ellerman
577830b034 [POWERPC] Consolidate pseries platform header files into pseries.h
Following the example of platforms/pasemi, consolidate a couple of
tiny header files in platforms/pseries into pseries.h.

This gives us a convenient place to put things that need to be
available to the platform code, but not public. And hopefully will
help people resist the temptation of sticking externs in C files.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-14 11:50:03 +11:00
Paul Mackerras
944b380e0c Merge branch 'cell-merge' of git+ssh://master.kernel.org/pub/scm/linux/kernel/git/arnd/cell-2.6 2007-02-14 11:33:39 +11:00
Carl Love
bcb63e25ed [POWERPC] cell: PPU Oprofile cleanup patch
This is a clean up patch that includes the following changes:

 -Some comments were added to clarify the code based on feedback
  from the community.
 -The write_pm_cntrl() and set_count_mode() were passed a
  structure element from a global variable.  The argument was
  removed so the functions now just operate on the global directly.
 -The set_pm_event() function call in the cell_virtual_cntr()
  routine was moved to a for-loop before the for_each_cpu loop

Signed-off-by: Carl Love <carll@us.ibm.com>
Signed-off-by: Maynard Johnson <mpjohn@us.ibm.com>
Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
2007-02-13 22:03:06 +01:00
Masato Noguchi
128b8546a8 [POWERPC] spufs: avoid accessing kernel memory through mmapped /mem node
I found an exploit in current kernel.
Currently, there is no range check about mmapping "/mem" node in
spufs. Thus, an application can access privilege memory region.

In case this kernel already worked on a public server, I send this
information only here.
If there are such servers in somewhere, please replace it, ASAP.

Signed-off-by: Masato Noguchi <Masato.Noguchi@jp.sony.com>
Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
2007-02-13 21:55:43 +01:00
Christoph Hellwig
2eb1b12049 [POWERPC] spu sched: static timeslicing for SCHED_RR contexts
For SCHED_RR tasks we can do some really trivial timeslicing.  Basically
we fire up a time for every scheduler tick that searches for a higher
or same priority thread that is on the runqueue and if there is one
context switches to it.  Because we can't lock spus from timer context
we actually run this from a delayed runqueue instead of a timer.

A nice optimization would be to skip the actual priority bitmap search
when there are less contexts than physical spus available.  To implement
this I need a so far unpublished patch from Andre, and it will be added
after we have that patch in.

Note that right now we only do the time slicing for SCHED_RR tasks.
The code would work for SCHED_OTHER tasks aswell, but their prio
value is defered from the one the PPU thread has at time of spu_run,
and using this for spu scheduling decisions would make the code very
unfair.  SCHED_OTHER support will be enabled once we the spu scheduler
knows how to calculcate cpu_context.prio (very soon)

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
2007-02-13 21:55:43 +01:00
Christoph Hellwig
72cb360839 [POWERPC] spu sched: use DECLARE_BITMAP
use DECLARE_BITMAP in the spu scheduler instead of reimplementing it.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
2007-02-13 21:55:42 +01:00
Christoph Hellwig
52f04fcf66 [POWERPC] spu sched: forced preemption at execution
If we start a spu context with realtime priority we want it to run
immediately and not wait until some other lower priority thread has
finished.  Try to find a suitable victim and use it's spu in this
case.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
2007-02-13 21:55:42 +01:00
Christoph Hellwig
ae7b4c5284 [POWERPC] spu sched: update some comments
Give spu_yield a kerneldoc comment and remove the old comment
documenting spu_activate, spu_deactive and spu_yield as all of them
now have descriptive kerneldoc comments of their own.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
2007-02-13 21:55:42 +01:00
Christoph Hellwig
678b2ff1e6 [POWERPC] spu sched: simplity spu_remove_from_active_list
If we call spu_remove_from_active_list that spu is always guaranteed
to be on the active list and in runnable state, so we can simply
do a list_del to remove it and unconditionally take the was_active
codepath.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
2007-02-13 21:55:41 +01:00
Christoph Hellwig
26bec67386 [POWERPC] spufs: optimize spu_run
There is no need to directly wake up contexts in spu_activate when
called from spu_run, so add a flag to surpress this wakeup.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
2007-02-13 21:55:41 +01:00
Christoph Hellwig
079cdb6161 [POWERPC] spufs: runqueue simplification
This is the biggest patch in this series, and it reworks the guts of
the spu scheduler runqueue mechanism:

 - instead of embedding a waitqueue in the runqueue there is now a
   simple doubly-linked list, the actual wakeups happen by reusing
   the stop_wq in the spu context (maybe we should rename it one day)
 - spu_free and spu_prio_wakeup are merged into a single spu_reschedule
   function
 - various functionality is split out into small helpers, and kerneldoc
   comments are added in various places to document what's going on.
 - spu_activate is rewritten into a tight loop by removing test for
   various impossible conditions and using the infrastructure in this
   patch.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
2007-02-13 21:55:41 +01:00
Christoph Hellwig
8389998ae9 [POWERPC] spufs: move prio to spu_context
It doesn't make any sense to have a priority field in the physical spu
structure.  Move it into the spu context instead.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
2007-02-13 21:55:40 +01:00
Christoph Hellwig
6a0641e510 [POWERPC] spufs: state_mutex cleanup
Various cleanups in code surrounding the state semaphore:

 - inline spu_acquire/spu_release
 - cleanup spu_acquire_* and add kerneldoc comments to these functions
 - remove spu_release_exclusive and replace it with spu_release

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
2007-02-13 21:55:40 +01:00
Christoph Hellwig
650f8b0291 [POWERPC] spufs: simplify state_mutex
The r/w semaphore to lock the spus was overkill and can be replaced
with a mutex to make it faster, simpler and easier to debug.  It also
helps to allow making most spufs interruptible in future patches.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
2007-02-13 21:52:37 +01:00
Christoph Hellwig
202557d29e [POWERPC] spufs: sched.c cleanups
Various cleanups to sched.c that don't change the global control flow:

 - add kerneldoc comments to various functions
 - add spu_ prefixes to various functions
 - add/remove context from the runqueue in bind/unbind_context as
   it's part of the logical operation
 - add a call to put_active_spu to spu_unbind_contex as it's logically
   part of the unbind operation

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
2007-02-13 21:52:36 +01:00
Christoph Hellwig
81998bafe2 [POWERPC] spufs: bind_context sets SPU_STATE_RUNNABLE
Only bind_context/unbind_context change the spu context state.  Thus
we can move all assignents of SPU_STATE_RUNNABLE into bind_context,
which parallels the unbind side aswell.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
2007-02-13 21:52:36 +01:00