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17 years ago[POWERPC] spu sched: use DECLARE_BITMAP
Christoph Hellwig [Tue, 13 Feb 2007 20:54:28 +0000 (21:54 +0100)]
[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>
17 years ago[POWERPC] spu sched: forced preemption at execution
Christoph Hellwig [Tue, 13 Feb 2007 20:54:27 +0000 (21:54 +0100)]
[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>
17 years ago[POWERPC] spu sched: update some comments
Christoph Hellwig [Tue, 13 Feb 2007 20:54:26 +0000 (21:54 +0100)]
[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>
17 years ago[POWERPC] spu sched: simplity spu_remove_from_active_list
Christoph Hellwig [Tue, 13 Feb 2007 20:54:25 +0000 (21:54 +0100)]
[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>
17 years ago[POWERPC] spufs: optimize spu_run
Christoph Hellwig [Tue, 13 Feb 2007 20:54:24 +0000 (21:54 +0100)]
[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>
17 years ago[POWERPC] spufs: runqueue simplification
Christoph Hellwig [Tue, 13 Feb 2007 20:54:23 +0000 (21:54 +0100)]
[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>
17 years ago[POWERPC] spufs: move prio to spu_context
Christoph Hellwig [Tue, 13 Feb 2007 20:54:22 +0000 (21:54 +0100)]
[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>
17 years ago[POWERPC] spufs: state_mutex cleanup
Christoph Hellwig [Tue, 13 Feb 2007 20:54:21 +0000 (21:54 +0100)]
[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>
17 years ago[POWERPC] spufs: simplify state_mutex
Christoph Hellwig [Tue, 13 Feb 2007 20:36:50 +0000 (21:36 +0100)]
[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>
17 years ago[POWERPC] spufs: sched.c cleanups
Christoph Hellwig [Tue, 13 Feb 2007 20:36:49 +0000 (21:36 +0100)]
[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>
17 years ago[POWERPC] spufs: bind_context sets SPU_STATE_RUNNABLE
Christoph Hellwig [Tue, 13 Feb 2007 20:36:48 +0000 (21:36 +0100)]
[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>
17 years ago[POWERPC] spufs: remove superfluous SPU_STATE_SAVED assignments
Christoph Hellwig [Tue, 13 Feb 2007 20:36:47 +0000 (21:36 +0100)]
[POWERPC] spufs: remove superfluous SPU_STATE_SAVED assignments

unbind_context already sets the context state to SPU_STATE_SAVED, thus
the spu_deactivate callers don't need to do it again.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
17 years ago[POWERPC] spufs: remove empty last line in run.c
Christoph Hellwig [Tue, 13 Feb 2007 20:36:46 +0000 (21:36 +0100)]
[POWERPC] spufs: remove empty last line in run.c

Remove the empty last line in arch/powerpc/platforms/cell/spufs/run.c.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
17 years ago[POWERPC] spufs: remove SPU_CONTEXT_PREEMPT
Christoph Hellwig [Tue, 13 Feb 2007 20:36:45 +0000 (21:36 +0100)]
[POWERPC] spufs: remove SPU_CONTEXT_PREEMPT

Remove the SPU_CONTEXT_PREEMPT define.  It's unused and won't be used
in this form after the scheduler rework.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
17 years ago[POWERPC] spufs: Fix bitrot of the SPU mmap facility
Benjamin Herrenschmidt [Tue, 13 Feb 2007 00:46:08 +0000 (11:46 +1100)]
[POWERPC] spufs: Fix bitrot of the SPU mmap facility

It looks like we've had some serious bitrot there mostly due to tracking
of address_space's of mmap'ed files getting out of sync with the actual
mmap code. The mfc, mss and psmap were not tracked properly and thus
not invalidated on context switches (oops !)

I also removed the various file->f_mapping = inode->i_mapping;
assignments that were done in the other open() routines since that
is already done for us by __dentry_open.

One improvement we might want to do later is to assign the various
ctx-> fields at mmap time instead of file open/close time so that we
don't call unmap_mapping_range() on thing that have not been mmap'ed

Finally, I added some smp_wmb's after assigning the ctx-> fields to make
sure they are visible to other CPUs. I don't think this is really
necessary as I suspect locking in the fs layer will make that happen
anyway but better safe than sorry.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
17 years ago[POWERPC] powerpc: Remove SPU struct pages for PS3
Benjamin Herrenschmidt [Tue, 13 Feb 2007 00:46:07 +0000 (11:46 +1100)]
[POWERPC] powerpc: Remove SPU struct pages for PS3

Struct page are no longer needed for SPUs, so let's not create them
on PS3 anymore.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
17 years ago[POWERPC] spufs: remove need for struct page for SPEs
Benjamin Herrenschmidt [Tue, 13 Feb 2007 00:46:06 +0000 (11:46 +1100)]
[POWERPC] spufs: remove need for struct page for SPEs

This patch removes the need for struct page for SPE local store
and registers from spufs. It also makes the locking much more
obvious and no longer relying on the truncate logic black magic
for protecting against races between unmap_mapping_range() and
new pages faulted in. It does so by switching to a nopfn() handler
and using the new vm_insert_pfn() to setup the PTEs itself while
holding a lock on the SPE.

The nice thing is that this patch actually removes a lot more code
than it adds :-)

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
17 years ago[POWERPC] Small cleanup of EFIKA platform
Sylvain Munaut [Mon, 12 Feb 2007 22:13:24 +0000 (23:13 +0100)]
[POWERPC] Small cleanup of EFIKA platform

The efika platform used three files efika-pci.c efika-setup.c and
a 2 line efika.h to link the two. The total of code in those is
really not much and therefore, I think they're better merged
in a single file.

There is absolutely _no_code_change_ at all, just merged the files.

Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Paul Mackerras <paulus@samba.org>
17 years ago[POWERPC] Fix unbalanced of_node_{get,put} in efika-setup.c
Sylvain Munaut [Mon, 12 Feb 2007 22:13:23 +0000 (23:13 +0100)]
[POWERPC] Fix unbalanced of_node_{get,put} in efika-setup.c

Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Paul Mackerras <paulus@samba.org>
17 years ago[POWERPC] Use common 52xx of_platform probe code for EFIKA
Sylvain Munaut [Mon, 12 Feb 2007 22:13:22 +0000 (23:13 +0100)]
[POWERPC] Use common 52xx of_platform probe code for EFIKA

Now that the device tree has the good properties, we can
remove all the efika_init code by a single call to common code.

While we're modifying that file, a few whitespaces/alignement/typo
fixes are made (nothing significant).

Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Paul Mackerras <paulus@samba.org>
17 years ago[POWERPC] Restore 'proper' link order in platform
Sylvain Munaut [Mon, 12 Feb 2007 22:13:21 +0000 (23:13 +0100)]
[POWERPC] Restore 'proper' link order in platform

The 52xx was put before CHRP to allow EFIKA to be recognized
properly. Now the efika tree is fixed up in prom_init so
no need for this ugly hack. So we restore the 'normal'
order.

Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Paul Mackerras <paulus@samba.org>
17 years ago[POWERPC] Add device tree fixups for the EFIKA
Sylvain Munaut [Mon, 12 Feb 2007 22:13:20 +0000 (23:13 +0100)]
[POWERPC] Add device tree fixups for the EFIKA

We make the efika device tree compliant with the defined bindings
(at least compliant enough). This is mostly done by mangling
the device_type and compatible properties, but also adding
some missing bits.

Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Paul Mackerras <paulus@samba.org>
17 years ago[POWERPC] mpc5200 device tree bindings refinement
Grant Likely [Mon, 12 Feb 2007 20:36:54 +0000 (13:36 -0700)]
[POWERPC] mpc5200 device tree bindings refinement

Much needed refinement of mpc5200 device tree binding specifications.

Short list:
- drop mpc52xx designator; only two supported chips exist, 5200 and 5200b.
  It's premature to refer to them as '52xx'.
- Specify optional 'model' and 'revision' properties in the soc5200 node
- Specify reqiured 'cell-index' property to identify between multiple SOC
  devices of the same type.  (Useful for arbitrating shared register access)
- Specify optional 'port-number' property for adjusting the logical serial
  port assignments.
- Specify optional 'has-wdt' property for gpt0 node.
- Add system-frequency property to soc5200 node

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Paul Mackerras <paulus@samba.org>
17 years ago[POWERPC] Fixup mp5200 drivers to match device tree changes
Grant Likely [Mon, 12 Feb 2007 20:36:55 +0000 (13:36 -0700)]
[POWERPC] Fixup mp5200 drivers to match device tree changes

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Paul Mackerras <paulus@samba.org>
17 years ago[POWERPC] correct a prototype
Stephen Rothwell [Mon, 12 Feb 2007 11:10:48 +0000 (22:10 +1100)]
[POWERPC] correct a prototype

This rids us of a warning.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
17 years ago[POWERPC] Wire up sys_getcpu
Stephen Rothwell [Mon, 12 Feb 2007 11:09:18 +0000 (22:09 +1100)]
[POWERPC] Wire up sys_getcpu

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
17 years ago[POWERPC] ppc: Add support for AMCC Taishan 440GX eval board
Stefan Roese [Mon, 12 Feb 2007 10:29:04 +0000 (11:29 +0100)]
[POWERPC] ppc: Add support for AMCC Taishan 440GX eval board

This patch adds support for the AMCC Taishan PPC440GX evaluation
board.

This is still an arch/ppc port. I'm aware that the move of
4xx to arch/powerpc is making good progress right now. So this
patch is mainly intended to make the Taishan support available
for the community right now.

Signed-off-by: Stefan Roese <sr@denx.de>
Signed-off-by: Paul Mackerras <paulus@samba.org>
17 years ago[POWERPC] Fix vDSO page count calculation
Benjamin Herrenschmidt [Mon, 12 Feb 2007 02:31:08 +0000 (13:31 +1100)]
[POWERPC] Fix vDSO page count calculation

The recent vDSO consolidation patches broke powerpc due to a mistake
in the definition of MAXPAGES constants. This fixes it by moving to
a dynamically allocated array of pages instead as I don't like much
hard coded size limits. Also move the vdso initialisation to an initcall
since it doesn't really need to be done -that- early.

Applogies for not catching the breakage earlier, Roland _did_ CC me on
his patches a while ago, I got busy with other things and forgot to test
them.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
17 years ago[POWERPC] Correct AC Power: in /proc/pmu/info on ibook1
Olaf Hering [Sat, 10 Feb 2007 20:40:00 +0000 (21:40 +0100)]
[POWERPC] Correct AC Power: in /proc/pmu/info on ibook1

/proc/pmu/info contains AC Power: 0 when booting without battery.
Force AC Power, it will be updated whenever the battery state changes.

Signed-off-by: Olaf Hering <olaf@aepfle.de>
Signed-off-by: Paul Mackerras <paulus@samba.org>
17 years ago[POWERPC] Mark winbond IDE PCI resources with start 0 as unassigned
Olaf Hering [Sat, 10 Feb 2007 20:38:37 +0000 (21:38 +0100)]
[POWERPC] Mark winbond IDE PCI resources with start 0 as unassigned

libata calls pci_request_regions to claim PCI BAR 0 - 5
pci_request_regions fails if one of the regions cant be claimed.
bar 5 has start == 0,  __request_resource will fail.

Tested on a p630 in SMP mode with pata_sl82c105

 00:03.1 IDE interface: Symphony Labs SL82c105 (rev 05) (prog-if 8f [Master SecP SecO PriP PriO])
         Control: I/O+ Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr+ Stepping- SERR+ FastB2B-
         Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
         Interrupt: pin A routed to IRQ 86
         Region 0: I/O ports at 3fd3000f000 [size=8]
         Region 1: I/O ports at 3fd3000f010 [size=4]
         Region 2: I/O ports at 3fd3000f020 [size=8]
         Region 3: I/O ports at 3fd3000f030 [size=4]
         Region 4: I/O ports at 3fd3000f040 [size=16]
         Region 5: I/O ports at 3fd30000000 [size=16]
 00: ad 10 05 01 41 01 80 02 05 8f 01 01 08 48 80 00
 10: 01 f0 00 00 11 f0 00 00 21 f0 00 00 31 f0 00 00
 20: 41 f0 00 00 01 00 00 00 00 00 00 00 00 00 00 00
 30: 00 00 00 00 00 00 00 00 00 00 00 00 56 01 02 28
 40: b3 08 ff 00 09 09 00 00 09 09 00 00 09 09 00 00
 50: 09 09 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 60: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 70: 00 00 00 00 00 00 00 00 00 00 00 00 ff 00 00 00
 80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 90: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

 name             "ide"
 linux,phandle    00d5cdc0 (14011840)
 assigned-addresses 81001910 00000000 0000f000 00000000 00000008 81001914
                  00000000 0000f010 00000000 00000004 81001918 00000000
                  0000f020 00000000 00000008 8100191c 00000000 0000f030
                  00000000 00000004 81001920 00000000 0000f040 00000000
                  00000010 81001924 00000000 00000000 00000000 00000010
 interrupts       00000003
 built-in
 #size-cells      00000000
 #address-cells   00000001
 device_type      "ide"
 reg              00001900 00000000 00000000 00000000 00000000
                  41001910 00000000 00000000 00000000 00000008
                  41001914 00000000 00000000 00000000 00000004
                  41001918 00000000 00000000 00000000 00000008
                  4100191c 00000000 00000000 00000000 00000004
                  41001920 00000000 00000000 00000000 00000010
                  41001924 00000000 00000000 00000000 00000010
 compatible       "pci10ad,105"
                  "pciclass,01018f"
 ibm,fw-slot-number 00000000
 fast-back-to-back
 devsel-speed     00000001
 max-latency      00000028 (40)
 min-grant        00000002
 class-code       0001018f (65935)
 revision-id      00000005
 device-id        00000105 (261)
 vendor-id        000010ad (4269)
 ibm,loc-code     "U0.1-P1/Q6"

Signed-off-by: Olaf Hering <olaf@aepfle.de>
Signed-off-by: Paul Mackerras <paulus@samba.org>
17 years ago[POWERPC] move variables in drivers/macintosh to bss
Olaf Hering [Sat, 10 Feb 2007 20:35:12 +0000 (21:35 +0100)]
[POWERPC] move variables in drivers/macintosh to bss

Move all the initialized variables to bss.
Mark a version string as const.

Signed-off-by: Olaf Hering <olaf@aepfle.de>
Signed-off-by: Paul Mackerras <paulus@samba.org>
17 years ago[POWERPC] Virtual DMA support for floppy driver for new powerpc architecture
Pavel Fedin [Mon, 29 Jan 2007 12:13:03 +0000 (15:13 +0300)]
[POWERPC] Virtual DMA support for floppy driver for new powerpc architecture

During ppc64+ppc merge virtual DMA code for floppy driver was not
ported.  This patch restores virtual DMA support for floppy in new
powerpc target.

It is necessary at least on Pegasos and AmigaOne machines for the
floppy drive to function.  ISA DMA controller works incorrectly there
due to its addressing limitations.

Virtual DMA mode is activated by floppy=nodma option passed to the
kernel (or module).  There's no automatic switch like on i386.

Signed-off-by: Pavel Fedin <sonic_amiga@rambler.ru>
Signed-off-by: Paul Mackerras <paulus@samba.org>
17 years ago[POWERPC] Celleb: improve MMU hashtable locking
Akira Iguchi [Fri, 9 Feb 2007 07:53:59 +0000 (16:53 +0900)]
[POWERPC] Celleb: improve MMU hashtable locking

Disabling IRQ is required only in invalidation.  This changes
"spin_lock_irqsave" to "spin_lock" in other ops.

Signed-off-by: Kou Ishizaki <kou.ishizaki@toshiba.co.jp>
Signed-off-by: Akira Iguchi <akira2.iguchi@toshiba.co.jp>
Acked-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
17 years ago[POWERPC] Remove ibm4{xx,4x}.h from arch/powerpc
David Gibson [Tue, 6 Feb 2007 01:48:31 +0000 (12:48 +1100)]
[POWERPC] Remove ibm4{xx,4x}.h from arch/powerpc

ARCH=powerpc should not use the ghastly un-multiplatformable tangle of
includes that starts with asm-ppc/ibm4xx.h.  This patch removes a
compile-breaking include of it from head_44x.S.

Signed-off-by: David Gibson <dwg@au1.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
17 years agoMerge branch 'for_paulus' of master.kernel.org:/pub/scm/linux/kernel/git/galak/powerpc
Paul Mackerras [Tue, 13 Feb 2007 02:28:00 +0000 (13:28 +1100)]
Merge branch 'for_paulus' of master.kernel.org:/pub/scm/linux/kernel/git/galak/powerpc

17 years agoMerge master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6
Linus Torvalds [Mon, 12 Feb 2007 23:35:30 +0000 (15:35 -0800)]
Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6

* master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6:
  [SPARC]: Re-export saved_command_line to modules.
  [SPARC64]: Increase command line size to 2048 like other arches.
  [SPARC64]: We do not need ZONE_DMA.

17 years agoMerge master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
Linus Torvalds [Mon, 12 Feb 2007 23:34:17 +0000 (15:34 -0800)]
Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6

* master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6: (25 commits)
  [XFRM]: Fix OOPSes in xfrm_audit_log().
  [TCP]: cleanup of htcp (resend)
  [TCP]: Use read mostly for CUBIC parameters.
  [NETFILTER]: nf_conntrack_tcp: make sysctl variables static
  [NETFILTER]: ip6t_mh: drop piggyback payload packet on MH packets
  [NETFILTER]: Fix whitespace errors
  [NETFILTER]: Kconfig: improve dependency handling
  [NETFILTER]: xt_mac/xt_CLASSIFY: use IPv6 hook names for IPv6 registration
  [NETFILTER]: nf_conntrack: change nf_conntrack_l[34]proto_unregister to void
  [NETFILTER]: nf_conntrack: properly use RCU for nf_conntrack_destroyed callback
  [NETFILTER]: ip_conntrack: properly use RCU for ip_conntrack_destroyed callback
  [NETFILTER]: nf_conntrack: fix invalid conntrack statistics RCU assumption
  [NETFILTER]: ip_conntrack: fix invalid conntrack statistics RCU assumption
  [NETFILTER]: nf_conntrack: properly use RCU API for nf_ct_protos/nf_ct_l3protos arrays
  [NETFILTER]: ip_conntrack: properly use RCU API for ip_ct_protos array
  [NETFILTER]: nf_nat: properly use RCU API for nf_nat_protos array
  [NETFILTER]: ip_nat: properly use RCU API for ip_nat_protos array
  [NETFILTER]: nf_log: minor cleanups
  [NETFILTER]: nf_log: switch logger registration/unregistration to mutex
  [NETFILTER]: nf_log: make nf_log_unregister_pf return void
  ...

17 years ago[SPARC]: Re-export saved_command_line to modules.
David S. Miller [Mon, 12 Feb 2007 23:10:56 +0000 (15:10 -0800)]
[SPARC]: Re-export saved_command_line to modules.

This reverts some bogosity from the dynamic command-line
changes made on sparc32 and sparc64.

Drivers such as drivers/sbus/char/openprom.c reference
saved_command_line, and can be modular.

The boot_command_line is __initdata, yet the dynamic command-line
changes add modular exports of that symbol, obviously wrong.

Signed-off-by: David S. Miller <davem@davemloft.net>
17 years ago[SPARC64]: Increase command line size to 2048 like other arches.
David S. Miller [Mon, 12 Feb 2007 19:01:21 +0000 (11:01 -0800)]
[SPARC64]: Increase command line size to 2048 like other arches.

Signed-off-by: David S. Miller <davem@davemloft.net>
17 years ago[SPARC64]: We do not need ZONE_DMA.
David S. Miller [Mon, 12 Feb 2007 08:13:31 +0000 (00:13 -0800)]
[SPARC64]: We do not need ZONE_DMA.

Signed-off-by: David S. Miller <davem@davemloft.net>
17 years agodon't use 'localversion*' files twice
Linus Torvalds [Mon, 12 Feb 2007 23:05:15 +0000 (15:05 -0800)]
don't use 'localversion*' files twice

Since we look in both source and object directories for localversion*
files, we accidentally ended up getting them twice.  Use 'sort -u' to
avoid that.

Reported-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
17 years ago[XFRM]: Fix OOPSes in xfrm_audit_log().
David S. Miller [Mon, 12 Feb 2007 21:53:54 +0000 (13:53 -0800)]
[XFRM]: Fix OOPSes in xfrm_audit_log().

Make sure that this function is called correctly, and
add BUG() checking to ensure the arguments are sane.

Based upon a patch by Joy Latten.

Signed-off-by: David S. Miller <davem@davemloft.net>
17 years ago[TCP]: cleanup of htcp (resend)
Stephen Hemminger [Mon, 12 Feb 2007 21:34:03 +0000 (13:34 -0800)]
[TCP]: cleanup of htcp (resend)

Minor non-invasive cleanups:
 * white space around operators and line wrapping
 * use const
 * use __read_mostly

Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
17 years ago[TCP]: Use read mostly for CUBIC parameters.
Stephen Hemminger [Mon, 12 Feb 2007 21:15:20 +0000 (13:15 -0800)]
[TCP]: Use read mostly for CUBIC parameters.

These module parameters should be in the read mostly area to avoid
cache pollution.

Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
17 years ago[NETFILTER]: nf_conntrack_tcp: make sysctl variables static
Patrick McHardy [Mon, 12 Feb 2007 19:16:58 +0000 (11:16 -0800)]
[NETFILTER]: nf_conntrack_tcp: make sysctl variables static

sysctls are registered by the protocol module itself since 2.6.19, no need
to have them visible to others.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
17 years ago[NETFILTER]: ip6t_mh: drop piggyback payload packet on MH packets
Masahide NAKAMURA [Mon, 12 Feb 2007 19:16:17 +0000 (11:16 -0800)]
[NETFILTER]: ip6t_mh: drop piggyback payload packet on MH packets

Regarding RFC3775, MH payload proto field should be IPPROTO_NONE. Otherwise
it must be discarded (and the receiver should send ICMP error).

We assume filter should drop such piggyback everytime to disallow slipping
through firewall rules, even the final receiver will discard it.

Signed-off-by: Masahide NAKAMURA <nakam@linux-ipv6.org>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
17 years ago[NETFILTER]: Fix whitespace errors
YOSHIFUJI Hideaki [Mon, 12 Feb 2007 19:15:49 +0000 (11:15 -0800)]
[NETFILTER]: Fix whitespace errors

Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
17 years ago[NETFILTER]: Kconfig: improve dependency handling
Patrick McHardy [Mon, 12 Feb 2007 19:15:02 +0000 (11:15 -0800)]
[NETFILTER]: Kconfig: improve dependency handling

Instead of depending on internally needed options and letting users
figure out what is needed, select them when needed:

- IP_NF_IPTABLES, IP_NF_ARPTABLES and IP6_NF_IPTABLES select
  NETFILTER_XTABLES

- NETFILTER_XT_TARGET_CONNMARK, NETFILTER_XT_MATCH_CONNMARK and
  IP_NF_TARGET_CLUSTERIP select NF_CONNTRACK_MARK

- NETFILTER_XT_MATCH_CONNBYTES selects NF_CT_ACCT

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
17 years ago[NETFILTER]: xt_mac/xt_CLASSIFY: use IPv6 hook names for IPv6 registration
Patrick McHardy [Mon, 12 Feb 2007 19:14:43 +0000 (11:14 -0800)]
[NETFILTER]: xt_mac/xt_CLASSIFY: use IPv6 hook names for IPv6 registration

Use NF_IP6_ instead of NF_IP_. The values are identical, this is merely
cleanup.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
17 years ago[NETFILTER]: nf_conntrack: change nf_conntrack_l[34]proto_unregister to void
Patrick McHardy [Mon, 12 Feb 2007 19:14:28 +0000 (11:14 -0800)]
[NETFILTER]: nf_conntrack: change nf_conntrack_l[34]proto_unregister to void

No caller checks the return value, and since its usually called within the
module unload path there's nothing a module could do about errors anyway,
so BUG on invalid conditions and return void.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
17 years ago[NETFILTER]: nf_conntrack: properly use RCU for nf_conntrack_destroyed callback
Patrick McHardy [Mon, 12 Feb 2007 19:14:11 +0000 (11:14 -0800)]
[NETFILTER]: nf_conntrack: properly use RCU for nf_conntrack_destroyed callback

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
17 years ago[NETFILTER]: ip_conntrack: properly use RCU for ip_conntrack_destroyed callback
Patrick McHardy [Mon, 12 Feb 2007 19:13:58 +0000 (11:13 -0800)]
[NETFILTER]: ip_conntrack: properly use RCU for ip_conntrack_destroyed callback

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
17 years ago[NETFILTER]: nf_conntrack: fix invalid conntrack statistics RCU assumption
Patrick McHardy [Mon, 12 Feb 2007 19:13:43 +0000 (11:13 -0800)]
[NETFILTER]: nf_conntrack: fix invalid conntrack statistics RCU assumption

NF_CT_STAT_INC assumes rcu_read_lock in nf_hook_slow disables
preemption as well, making it legal to use __get_cpu_var without
disabling preemption manually. The assumption is not correct anymore
with preemptable RCU, additionally we need to protect against softirqs
when not holding nf_conntrack_lock.

Add NF_CT_STAT_INC_ATOMIC macro, which disables local softirqs,
and use where necessary.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
17 years ago[NETFILTER]: ip_conntrack: fix invalid conntrack statistics RCU assumption
Patrick McHardy [Mon, 12 Feb 2007 19:13:14 +0000 (11:13 -0800)]
[NETFILTER]: ip_conntrack: fix invalid conntrack statistics RCU assumption

CONNTRACK_STAT_INC assumes rcu_read_lock in nf_hook_slow disables
preemption as well, making it legal to use __get_cpu_var without
disabling preemption manually. The assumption is not correct anymore
with preemptable RCU, additionally we need to protect against softirqs
when not holding ip_conntrack_lock.

Add CONNTRACK_STAT_INC_ATOMIC macro, which disables local softirqs,
and use where necessary.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
17 years ago[NETFILTER]: nf_conntrack: properly use RCU API for nf_ct_protos/nf_ct_l3protos arrays
Patrick McHardy [Mon, 12 Feb 2007 19:12:57 +0000 (11:12 -0800)]
[NETFILTER]: nf_conntrack: properly use RCU API for nf_ct_protos/nf_ct_l3protos arrays

Replace preempt_{enable,disable} based RCU by proper use of the
RCU API and add missing rcu_read_lock/rcu_read_unlock calls in
all paths not obviously only used within packet process context
(nfnetlink_conntrack).

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
17 years ago[NETFILTER]: ip_conntrack: properly use RCU API for ip_ct_protos array
Patrick McHardy [Mon, 12 Feb 2007 19:12:40 +0000 (11:12 -0800)]
[NETFILTER]: ip_conntrack: properly use RCU API for ip_ct_protos array

Replace preempt_{enable,disable} based RCU by proper use of the
RCU API and add missing rcu_read_lock/rcu_read_unlock calls in
all paths not obviously only used within packet process context
(nfnetlink_conntrack).

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
17 years ago[NETFILTER]: nf_nat: properly use RCU API for nf_nat_protos array
Patrick McHardy [Mon, 12 Feb 2007 19:12:26 +0000 (11:12 -0800)]
[NETFILTER]: nf_nat: properly use RCU API for nf_nat_protos array

Replace preempt_{enable,disable} based RCU by proper use of the
RCU API and add missing rcu_read_lock/rcu_read_unlock calls in
paths used outside of packet processing context (nfnetlink_conntrack).

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
17 years ago[NETFILTER]: ip_nat: properly use RCU API for ip_nat_protos array
Patrick McHardy [Mon, 12 Feb 2007 19:12:09 +0000 (11:12 -0800)]
[NETFILTER]: ip_nat: properly use RCU API for ip_nat_protos array

Replace preempt_{enable,disable} based RCU by proper use of the
RCU API and add missing rcu_read_lock/rcu_read_unlock calls in
paths used outside of packet processing context (nfnetlink_conntrack).

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
17 years ago[NETFILTER]: nf_log: minor cleanups
Patrick McHardy [Mon, 12 Feb 2007 19:11:55 +0000 (11:11 -0800)]
[NETFILTER]: nf_log: minor cleanups

- rename nf_logging to nf_loggers since its an array of registered loggers

- rename nf_log_unregister_logger() to nf_log_unregister() to make it
  symetrical to nf_log_register() and convert all users

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
17 years ago[NETFILTER]: nf_log: switch logger registration/unregistration to mutex
Patrick McHardy [Mon, 12 Feb 2007 19:11:39 +0000 (11:11 -0800)]
[NETFILTER]: nf_log: switch logger registration/unregistration to mutex

The spinlock is only used in process context (register/unregister),
switch to a mutex.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
17 years ago[NETFILTER]: nf_log: make nf_log_unregister_pf return void
Patrick McHardy [Mon, 12 Feb 2007 19:11:24 +0000 (11:11 -0800)]
[NETFILTER]: nf_log: make nf_log_unregister_pf return void

Since the only user of nf_log_unregister_pf (nfnetlink_log) doesn't
check the return value, change it to void and bail out silently when
a non-existant address family is supplied.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
17 years ago[NETFILTER]: nf_log: use rcu_assign_pointer for RCU protected pointer
Patrick McHardy [Mon, 12 Feb 2007 19:11:06 +0000 (11:11 -0800)]
[NETFILTER]: nf_log: use rcu_assign_pointer for RCU protected pointer

Also replace synchronize_net() calls by synchronize_rcu() since the
RCU protected data is also used for sysfs.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
17 years ago[NETFILTER]: Switch nf_register_hook/nf_unregister_hook to mutex
Patrick McHardy [Mon, 12 Feb 2007 19:10:14 +0000 (11:10 -0800)]
[NETFILTER]: Switch nf_register_hook/nf_unregister_hook to mutex

The spinlock is only used in process context (register/unregister)
since RCU is used for the nf_hook lists, switch to a mutex.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
17 years ago[NETFILTER]: Switch nf_register_afinfo/nf_unregister_afinfo to mutex
Patrick McHardy [Mon, 12 Feb 2007 19:09:55 +0000 (11:09 -0800)]
[NETFILTER]: Switch nf_register_afinfo/nf_unregister_afinfo to mutex

The spinlock is only used in process context (register/unregister),
switch to a mutex.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
17 years ago[NETFILTER]: Remove unnecessary synchronize_net() in nf_register_hook
Patrick McHardy [Mon, 12 Feb 2007 19:09:35 +0000 (11:09 -0800)]
[NETFILTER]: Remove unnecessary synchronize_net() in nf_register_hook

We're only adding to the list, no need to synchronize.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
17 years ago[NETFILTER]: Properly use RCU in nf_ct_attach
Patrick McHardy [Mon, 12 Feb 2007 19:09:19 +0000 (11:09 -0800)]
[NETFILTER]: Properly use RCU in nf_ct_attach

Use rcu_assign_pointer/rcu_dereference for ip_ct_attach pointer instead
of self-made RCU and use rcu_read_lock to make sure the conntrack module
doesn't disappear below us while calling it, since this function can be
called from outside the netfilter hooks.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
17 years agoMerge branch 'for-linus' of git://git390.osdl.marist.edu/pub/scm/linux-2.6
Linus Torvalds [Mon, 12 Feb 2007 17:57:44 +0000 (09:57 -0800)]
Merge branch 'for-linus' of git://git390.osdl.marist.edu/pub/scm/linux-2.6

* 'for-linus' of git://git390.osdl.marist.edu/pub/scm/linux-2.6:
  [S390] remove __io_virt and mmiowb.
  [S390] cio: use ARRAY_SIZE in device_id.c
  [S390] cio: Fixup interface for setting options on ccw devices.
  [S390] smp_call_function/smp_call_function_on locking.

17 years ago[PATCH] Mark struct super_operations const
Josef 'Jeff' Sipek [Mon, 12 Feb 2007 08:55:41 +0000 (00:55 -0800)]
[PATCH] Mark struct super_operations const

This patch is inspired by Arjan's "Patch series to mark struct
file_operations and struct inode_operations const".

Compile tested with gcc & sparse.

Signed-off-by: Josef 'Jeff' Sipek <jsipek@cs.sunysb.edu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
17 years ago[PATCH] mark struct inode_operations const 3
Arjan van de Ven [Mon, 12 Feb 2007 08:55:40 +0000 (00:55 -0800)]
[PATCH] mark struct inode_operations const 3

Many struct inode_operations in the kernel can be "const".  Marking them const
moves these to the .rodata section, which avoids false sharing with potential
dirty data.  In addition it'll catch accidental writes at compile time to
these shared resources.

Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
17 years ago[PATCH] mark struct inode_operations const 2
Arjan van de Ven [Mon, 12 Feb 2007 08:55:39 +0000 (00:55 -0800)]
[PATCH] mark struct inode_operations const 2

Many struct inode_operations in the kernel can be "const".  Marking them const
moves these to the .rodata section, which avoids false sharing with potential
dirty data.  In addition it'll catch accidental writes at compile time to
these shared resources.

Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
17 years ago[PATCH] mark struct inode_operations const 1
Arjan van de Ven [Mon, 12 Feb 2007 08:55:38 +0000 (00:55 -0800)]
[PATCH] mark struct inode_operations const 1

Many struct inode_operations in the kernel can be "const".  Marking them const
moves these to the .rodata section, which avoids false sharing with potential
dirty data.  In addition it'll catch accidental writes at compile time to
these shared resources.

Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
17 years ago[PATCH] mark struct file_operations const 9
Arjan van de Ven [Mon, 12 Feb 2007 08:55:37 +0000 (00:55 -0800)]
[PATCH] mark struct file_operations const 9

Many struct file_operations in the kernel can be "const".  Marking them const
moves these to the .rodata section, which avoids false sharing with potential
dirty data.  In addition it'll catch accidental writes at compile time to
these shared resources.

Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
17 years ago[PATCH] mark struct file_operations const 8
Arjan van de Ven [Mon, 12 Feb 2007 08:55:36 +0000 (00:55 -0800)]
[PATCH] mark struct file_operations const 8

Many struct file_operations in the kernel can be "const".  Marking them const
moves these to the .rodata section, which avoids false sharing with potential
dirty data.  In addition it'll catch accidental writes at compile time to
these shared resources.

Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
17 years ago[PATCH] mark struct file_operations const 7
Arjan van de Ven [Mon, 12 Feb 2007 08:55:35 +0000 (00:55 -0800)]
[PATCH] mark struct file_operations const 7

Many struct file_operations in the kernel can be "const".  Marking them const
moves these to the .rodata section, which avoids false sharing with potential
dirty data.  In addition it'll catch accidental writes at compile time to
these shared resources.

Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
17 years ago[PATCH] mark struct file_operations const 6
Arjan van de Ven [Mon, 12 Feb 2007 08:55:34 +0000 (00:55 -0800)]
[PATCH] mark struct file_operations const 6

Many struct file_operations in the kernel can be "const".  Marking them const
moves these to the .rodata section, which avoids false sharing with potential
dirty data.  In addition it'll catch accidental writes at compile time to
these shared resources.

Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
17 years ago[PATCH] mark struct file_operations const 5
Arjan van de Ven [Mon, 12 Feb 2007 08:55:34 +0000 (00:55 -0800)]
[PATCH] mark struct file_operations const 5

Many struct file_operations in the kernel can be "const".  Marking them const
moves these to the .rodata section, which avoids false sharing with potential
dirty data.  In addition it'll catch accidental writes at compile time to
these shared resources.

Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
17 years ago[PATCH] mark struct file_operations const 4
Arjan van de Ven [Mon, 12 Feb 2007 08:55:33 +0000 (00:55 -0800)]
[PATCH] mark struct file_operations const 4

Many struct file_operations in the kernel can be "const".  Marking them const
moves these to the .rodata section, which avoids false sharing with potential
dirty data.  In addition it'll catch accidental writes at compile time to
these shared resources.

[akpm@sdl.org: dvb fix]
Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
17 years ago[PATCH] mark struct file_operations const 3
Arjan van de Ven [Mon, 12 Feb 2007 08:55:32 +0000 (00:55 -0800)]
[PATCH] mark struct file_operations const 3

Many struct file_operations in the kernel can be "const".  Marking them const
moves these to the .rodata section, which avoids false sharing with potential
dirty data.  In addition it'll catch accidental writes at compile time to
these shared resources.

Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
17 years ago[PATCH] mark struct file_operations const 2
Arjan van de Ven [Mon, 12 Feb 2007 08:55:31 +0000 (00:55 -0800)]
[PATCH] mark struct file_operations const 2

Many struct file_operations in the kernel can be "const".  Marking them const
moves these to the .rodata section, which avoids false sharing with potential
dirty data.  In addition it'll catch accidental writes at compile time to
these shared resources.

[akpm@osdl.org: sparc64 fix]
Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
17 years ago[PATCH] mark struct file_operations const 1
Arjan van de Ven [Mon, 12 Feb 2007 08:55:28 +0000 (00:55 -0800)]
[PATCH] mark struct file_operations const 1

Many struct file_operations in the kernel can be "const".  Marking them const
moves these to the .rodata section, which avoids false sharing with potential
dirty data.  In addition it'll catch accidental writes at compile time to
these shared resources.

Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
17 years ago[PATCH] ps3: ps3av/fb defconfig updates
Geert Uytterhoeven [Mon, 12 Feb 2007 08:55:27 +0000 (00:55 -0800)]
[PATCH] ps3: ps3av/fb defconfig updates

PS3: defconfig updates for ps3av and ps3fb

Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Cc: James Simmons <jsimmons@infradead.org>
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>
17 years ago[PATCH] ps3: cleanup ps3fb before clearing HPTE
Geert Uytterhoeven [Mon, 12 Feb 2007 08:55:26 +0000 (00:55 -0800)]
[PATCH] ps3: cleanup ps3fb before clearing HPTE

PS3: Cleanup the frame buffer device before clearing the HPTE mapping

Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Cc: James Simmons <jsimmons@infradead.org>
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>
17 years ago[PATCH] ps3: disable display flipping during mode changes
Geert Uytterhoeven [Mon, 12 Feb 2007 08:55:25 +0000 (00:55 -0800)]
[PATCH] ps3: disable display flipping during mode changes

If ps3fb is available, we have to disable display flipping while changing the
audio or video mode.

Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Cc: James Simmons <jsimmons@infradead.org>
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>
17 years ago[PATCH] ps3: Virtual Frame Buffer Driver
Geert Uytterhoeven [Mon, 12 Feb 2007 08:55:23 +0000 (00:55 -0800)]
[PATCH] ps3: Virtual Frame Buffer Driver

Add the PS3 Virtual Frame Buffer Driver.

As the actual graphics hardware cannot be accessed directly by Linux, ps3fb
uses a virtual frame buffer in main memory.  The actual screen image is copied
to graphics memory by the GPU on every vertical blank, by making a hypervisor
call.

Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Cc: James Simmons <jsimmons@infradead.org>
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>
17 years ago[PATCH] ps3: Preallocate bootmem memory for ps3fb
Geert Uytterhoeven [Mon, 12 Feb 2007 08:55:22 +0000 (00:55 -0800)]
[PATCH] ps3: Preallocate bootmem memory for ps3fb

Preallocate bootmem memory for the PS3 frame buffer device, which needs a
large block of physically-contiguous memory. The size of this memory block is
configurable:
  - The config option CONFIG_FB_PS3_DEFAULT_SIZE_M allows to specify the
    default amount of memory (in MiB) allocated to the virtual frame buffer.
  - The early boot parameter `ps3fb=xxx' allows to override the default value.
    It will be rounded up to a multiple of 1 MiB, if needed.

Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Cc: James Simmons <jsimmons@infradead.org>
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>
17 years ago[PATCH] fb_videomode_to_var: reset virtual screen parameters
Geert Uytterhoeven [Mon, 12 Feb 2007 08:55:21 +0000 (00:55 -0800)]
[PATCH] fb_videomode_to_var: reset virtual screen parameters

fb_videomode_to_var(): reset the virtual screen parameters when converting
from an fb_videomode to an fb_var_screeninfo.

Without this the old virtual screen parameters are kept.  Hence you cannot
switch to a video mode with a lower resolution on frame buffer devices that
don't support virtual screens and panning, as values are not supposed to be
rounded down when they don't fit.

I also reordered the assignments to match the order of the individual members.

Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Cc: James Simmons <jsimmons@infradead.org>
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>
17 years ago[PATCH] fbdev modedb: make more pointer parameters const
Geert Uytterhoeven [Mon, 12 Feb 2007 08:55:19 +0000 (00:55 -0800)]
[PATCH] fbdev modedb: make more pointer parameters const

fbdev modedb: make more input and output pointer parameters const

Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Cc: James Simmons <jsimmons@infradead.org>
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>
17 years ago[PATCH] fbdev modedb: allow refresh rates for named video modes
Geert Uytterhoeven [Mon, 12 Feb 2007 08:55:18 +0000 (00:55 -0800)]
[PATCH] fbdev modedb: allow refresh rates for named video modes

fbdev modedb: Take into account the specified refresh rates for video modes
specified by name, so e.g.  all of `720p', `720p@60', and `720p@50' work.

Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Cc: James Simmons <jsimmons@infradead.org>
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>
17 years ago[PATCH] ps3: AV Settings Driver
Geert Uytterhoeven [Mon, 12 Feb 2007 08:55:16 +0000 (00:55 -0800)]
[PATCH] ps3: AV Settings Driver

Add the PS3 AV Settings Driver.

The AV Settings driver is used to control Audio and Video settings.  It
communicates with the policy manager through the virtual uart.

Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Cc: James Simmons <jsimmons@infradead.org>
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>
17 years ago[PATCH] ps3: add shutdown to virtual uart port driver framework
Geert Uytterhoeven [Mon, 12 Feb 2007 08:55:15 +0000 (00:55 -0800)]
[PATCH] ps3: add shutdown to virtual uart port driver framework

PS3: Add a shutdown method to the PS3's virtual uart port driver framework

Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Cc: James Simmons <jsimmons@infradead.org>
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>
17 years ago[PATCH] change nvidiafb_remove to __devexit
Prarit Bhargava [Mon, 12 Feb 2007 08:55:14 +0000 (00:55 -0800)]
[PATCH] change nvidiafb_remove to __devexit

Change nvidiafb_remove to __devexit to fix MODPOST warnings:

WARNING: drivers/video/nvidia/nvidiafb.o - Section mismatch: reference to
.exit.text:nvidiafb_remove from .data.rel.local after 'nvidiafb_driver' (at
offset 0x28)

Signed-off-by: Prarit Bhargava <prarit@redhat.com>
Acked-By: James Simmons <jsimmons@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
17 years ago[PATCH] Video: fb, kzalloc changes
Jiri Slaby [Mon, 12 Feb 2007 08:55:12 +0000 (00:55 -0800)]
[PATCH] Video: fb, kzalloc changes

Use kzalloc instead of kmalloc + memset(0).

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Cc: James Simmons <jsimmons@infradead.org>
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>
17 years ago[PATCH] Video: fb, add true ref_count atomicity
Jiri Slaby [Mon, 12 Feb 2007 08:55:11 +0000 (00:55 -0800)]
[PATCH] Video: fb, add true ref_count atomicity

Some of fb drivers uses atomic_t in bad manner, since there are still some
race-prone gaps.  Use mutexes to protect open/close code sections with
ref_count testing and finally use simple uint.

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Acked-by: Denis Oliver Kropp <dok@directfb.org>
Cc: James Simmons <jsimmons@infradead.org>
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>
17 years ago[PATCH] remove the broken FB_S3TRIO driver
Adrian Bunk [Mon, 12 Feb 2007 08:55:09 +0000 (00:55 -0800)]
[PATCH] remove the broken FB_S3TRIO driver

The FB_S3TRIO driver:
- has been marked as BROKEN for more than two years and
- is still marked as BROKEN.

Drivers that had been marked as BROKEN for such a long time seem to be
unlikely to be revived in the forseeable future.

But if anyone wants to ever revive this driver, the code is still
present in the older kernel releases.

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: "Antonino A. Daplas" <adaplas@pol.net>
Cc: James Simmons <jsimmons@infradead.org>
Acked-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
17 years ago[PATCH] matroxfb: Use kzalloc
Jean Delvare [Mon, 12 Feb 2007 08:55:07 +0000 (00:55 -0800)]
[PATCH] matroxfb: Use kzalloc

Use kzalloc instead of kmalloc+memset, twice.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Petr Vandrovec <vandrove@vc.cvut.cz>
Acked-By: James Simmons <jsimmons@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
17 years ago[PATCH] drivers/video/sis: Convert to generic boolean
Richard Knutsson [Mon, 12 Feb 2007 08:55:06 +0000 (00:55 -0800)]
[PATCH] drivers/video/sis: Convert to generic boolean

Convert:
FALSE   -> false
TRUE    -> true
BOOLEAN -> bool

Signed-off-by: Richard Knutsson <ricknu-0@student.ltu.se>
Cc: Thomas Hellstrom <thomas@tungstengraphics.com>
Cc: James Simmons <jsimmons@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
17 years ago[PATCH] pm3fb: kill pci_find_device usage
Alan [Mon, 12 Feb 2007 08:55:05 +0000 (00:55 -0800)]
[PATCH] pm3fb: kill pci_find_device usage

Signed-off-by: Alan Cox <alan@redhat.com>
Acked-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
17 years ago[PATCH] Correct apparent typo CONFIG_ATY_CT in ATY video
Robert P. J. Day [Mon, 12 Feb 2007 08:55:03 +0000 (00:55 -0800)]
[PATCH] Correct apparent typo CONFIG_ATY_CT in ATY video

Replace the apparent typo CONFIG_ATY_CT with CONFIG_FB_ATY_CT.

Signed-off-by: Robert P. J. Day <rpjday@mindspring.com>
Cc: James Simmons <jsimmons@infradead.org>
Cc: Ville Syrjala <syrjala@sci.fi>
Cc: Antonino A. Daplas <adaplas@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
17 years ago[PATCH] Recognize video=gx1fb:... option
Alexey Dobriyan [Mon, 12 Feb 2007 08:55:02 +0000 (00:55 -0800)]
[PATCH] Recognize video=gx1fb:... option

Juergen Beisert reported that the following option doesn't work for him

video=gx1fb:1024x768-16@60

though sisfb was able to parse similar option correctly.

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Cc: Jordan Crouse <jordan.crouse@amd.com>
Cc: "Antonino A. Daplas" <adaplas@pol.net>
Cc: James Simmons <jsimmons@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
17 years ago[PATCH] proper prototype for tosh_smm()
Adrian Bunk [Mon, 12 Feb 2007 08:55:01 +0000 (00:55 -0800)]
[PATCH] proper prototype for tosh_smm()

Add a proper prototype for tosh_smm() to include/linux/toshiba.h

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Cc: James Simmons <jsimmons@infradead.org>
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>