Commit Graph

6219 Commits

Author SHA1 Message Date
Wolfram Sang 4b364f230a i2c/chips: Move max6875 to drivers/misc/eeprom
This driver only reads the user EEPROM of that chip, so we can move it
to the eeprom-directory in order to further clean up (and later remove)
drivers/i2c/chips.

The Kconfig text was updated to match the current functionality,
dropping the meanwhile obsoleted parts.

Defconfigs have been adapted.

Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Acked-by: Ben Gardner <gardner.ben@gmail.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
2009-06-15 18:01:49 +02:00
Paul Mackerras 9974458e2f perf_counter: Make set_perf_counter_pending() declaration common
At present, every architecture that supports perf_counters has to
declare set_perf_counter_pending() in its arch-specific headers.
This consolidates the declarations into a single declaration in one
common place, include/linux/perf_counter.h.  On powerpc, we continue
to provide a static inline definition of set_perf_counter_pending()
in the powerpc hw_irq.h.

Also, this removes from the x86 perf_counter.h the unused null
definitions of {test,clear}_perf_counter_pending.

Reported-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: benh@kernel.crashing.org
LKML-Reference: <18998.13388.920691.523227@cargo.ozlabs.ibm.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-06-15 16:12:26 +02:00
Paul Mackerras 90c8f95453 perf_counter: powerpc: Fix two compile warnings
This fixes a couple of compile warnings that crept into the powerpc
perf_counter code recently:

   CC      arch/powerpc/kernel/perf_counter.o
 arch/powerpc/kernel/perf_counter.c: In function 'record_and_restart':
 arch/powerpc/kernel/perf_counter.c:1016: warning: unused variable 'addr'
 arch/powerpc/kernel/perf_counter.c: In function 'hw_perf_counter_init':
 arch/powerpc/kernel/perf_counter.c:891: warning: 'ev' may be used uninitialized in this function

Stephen Rothwell reported this against linux-next as well.

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <18998.12884.787039.22202@cargo.ozlabs.ibm.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-06-15 16:12:25 +02:00
David S. Miller 9cbc1cb8cd Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6
Conflicts:
	Documentation/feature-removal-schedule.txt
	drivers/scsi/fcoe/fcoe.c
	net/core/drop_monitor.c
	net/core/net-traces.c
2009-06-15 03:02:23 -07:00
Geert Uytterhoeven a4e623fbc9 ps3: Replace direct file operations by callback
Currently the FLASH database is updated by the kernel using file operations,
meant for userspace only. While this works for us because copy_{from,to}_user()
on powerpc can handle kernel pointers, this is unportable and a bad example.
Replace the file operations by callbacks, registered by the ps3flash driver.

Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Cc: Geoff Levand <geoffrey.levand@am.sony.com>
Acked-by: Geoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-06-15 16:47:26 +10:00
Geert Uytterhoeven 47cb996b05 ps3: Switch ps3_os_area_[gs]et_rtc_diff to EXPORT_SYMBOL_GPL()
They were never intended to be exported using EXPORT_SYMBOL() anyway

Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Cc: Geoff Levand <geoffrey.levand@am.sony.com>
Acked-by: Geoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-06-15 16:47:26 +10:00
Geert Uytterhoeven 7e28060a5e ps3: Correct debug message in dma_ioc0_map_pages()
It reports the failure of a call to lv1_put_iopte(), not
lv1_map_device_dma_region().

Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Cc: Geoff Levand <geoffrey.levand@am.sony.com>
Acked-by: Geoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-06-15 16:47:26 +10:00
Geert Uytterhoeven 03fa68c245 ps3: shorten ps3_system_bus_[gs]et_driver_data to ps3_system_bus_[gs]et_drvdata
Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Cc: Geoff Levand <geoffrey.levand@am.sony.com>
Cc: Jim Paris <jim@jtan.com>
Acked-by: Geoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-06-15 16:47:24 +10:00
Geert Uytterhoeven 9f08e9db84 ps3: Use dev_[gs]et_drvdata() instead of direct access for system bus devices
Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Cc: Geoff Levand <geoffrey.levand@am.sony.com>
Acked-by: Geoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-06-15 16:47:24 +10:00
Paul Mackerras c2e95c6d7a powerpc: Use generic atomic64_t implementation on 32-bit processors
This makes 32-bit powerpc use the generic atomic64_t implementation.

Signed-off-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-06-15 13:27:38 +10:00
Paul Mackerras 4c75f84f2c powerpc: Add compiler memory barrier to mtmsr macro
On 32-bit non-Book E, local_irq_restore() turns into just mtmsr(),
which doesn't currently have a compiler memory barrier.  This means
that accesses to memory inside a local_irq_save/restore section,
or a spin_lock_irqsave/spin_unlock_irqrestore section on UP, can
be reordered by the compiler to occur outside that section.

To fix this, this adds a compiler memory barrier to mtmsr for both
32-bit and 64-bit.  Having a compiler memory barrier in mtmsr makes
sense because it will almost always be changing something about the
context in which memory accesses are done, so in general we don't want
memory accesses getting moved from one side of an mtmsr to the other.

With the barrier in mtmsr(), some of the explicit barriers in
hw_irq.h are now redundant, so this removes them.

Signed-off-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-06-15 13:27:37 +10:00
Michael Ellerman e8d1673b97 powerpc/iseries: Mark signal_vsp_instruction() as maybe unused
signal_vsp_instruction() is currently only used if CONFIG_PROC_FS
is enabled. However logically it has nothing to do with PROC_FS,
so rather than making it depend on that mark it as maybe unused.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-06-15 13:27:37 +10:00
Michael Ellerman 27167c7e9b powerpc/iseries: Fix unused function warning in iSeries DT code
If CONFIG_BLK_DEV_INITRD is unset dt_prop_u64() is unused, which
causes a warning. We don't really want to tie the definition to
BLK_DEV_INITRD, so mark it as maybe unused.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-06-15 13:27:37 +10:00
Michael Ellerman 7719ed7ce8 powerpc: Only build prom_init.o when CONFIG_PPC_OF_BOOT_TRAMPOLINE=y
Commit 28794d34 ("powerpc/kconfig: Kill PPC_MULTIPLATFORM"), added
CONFIG_PPC_OF_BOOT_TRAMPOLINE to control the buliding of prom_init.o

However the Makefile still unconditionally builds prom_init_check,
the script that checks prom_init.o for symbol usage, and so in turn
prom_init.o is still always being built. (it's not linked though)

So surround all the prom_init_check logic with an ifeq block testing
if CONFIG_PPC_OF_BOOT_TRAMPOLINE is set.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-06-15 13:27:36 +10:00
Stephen Rothwell 3240776ce2 powerpc: Wire up sys_rt_tgsigqueueinfo
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-06-15 13:27:36 +10:00
Michael Ellerman 86c276560a powerpc/cell: Use driver_data acessors, not platform_data in Axon MSI
The Axon MSI driver incorrectly uses platform_data, rather than
the proper accessors for driver_data.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-06-15 13:26:22 +10:00
Michael Ellerman e468455e58 powerpc: Fix warning in setup_64.c when CONFIG_RELOCATABLE=y
When CONFIG_RELOCATABLE is enabled, PHYSICAL_START is actually a
variable of type phys_addr_t. That means to print it we need to
cast to unsigned long long and use llx.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-06-15 13:26:21 +10:00
Geert Uytterhoeven c204ff6559 ps3fb: Tear down FB setup during cleanup
During cleanup, use L1GPU_CONTEXT_ATTRIBUTE_FB_CLOSE to tear down the setup
done by L1GPU_CONTEXT_ATTRIBUTE_FB_SETUP.

This allows unloading and reloading of ps3fb while the sound driver keeps the
GPU open.

Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Cc: linux-fbdev-devel@lists.sourceforge.net
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-06-15 13:26:21 +10:00
Geert Uytterhoeven d3352c9f1e ps3fb/vram: Extract common GPU stuff into <asm/ps3gpu.h>
Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Cc: linux-fbdev-devel@lists.sourceforge.net
Cc: Jim Paris <jim@jtan.com>
Cc: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-06-15 13:26:20 +10:00
Geert Uytterhoeven 5c6fc8db76 powerpc/cell: Extract duplicated IOPTE_* to <asm/iommu.h>
Both arch/powerpc/platforms/cell/iommu.c and arch/powerpc/platforms/ps3/mm.c
contain the same Cell IOMMU page table entry definitions. Extract them and move
them to <asm/iommu.h>, while adding a CBE_ prefix.
This also allows them to be used by drivers.

Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-06-15 13:26:19 +10:00
Benjamin Herrenschmidt 177996e6e2 powerpc: Don't do generic calibrate_delay()
Currently we are wasting time calling the generic calibrate_delay()
function. We don't need it since our implementation of __delay() is
based on the CPU timebase. So instead, we use our own small
implementation that initializes loops_per_jiffy to something sensible
to make the few users like spinlock debug be happy

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-06-15 13:26:17 +10:00
Grant Likely 529273c1ad powerpc/install: Bail with error code on error in install script
If anything goes wrong when copying images into the install path, then
the install script should exit with an error code so that 'make' knows
about it and tells the user.

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-06-15 13:26:16 +10:00
Benjamin Herrenschmidt 7dafd239ab Merge commit 'origin/master' into next 2009-06-15 10:36:54 +10:00
Linus Torvalds 489f7ab6c1 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (31 commits)
  trivial: remove the trivial patch monkey's name from SubmittingPatches
  trivial: Fix a typo in comment of addrconf_dad_start()
  trivial: usb: fix missing space typo in doc
  trivial: pci hotplug: adding __init/__exit macros to sgi_hotplug
  trivial: Remove the hyphen from git commands
  trivial: fix ETIMEOUT -> ETIMEDOUT typos
  trivial: Kconfig: .ko is normally not included in module names
  trivial: SubmittingPatches: fix typo
  trivial: Documentation/dell_rbu.txt: fix typos
  trivial: Fix Pavel's address in MAINTAINERS
  trivial: ftrace:fix description of trace directory
  trivial: unnecessary (void*) cast removal in sound/oss/msnd.c
  trivial: input/misc: Fix typo in Kconfig
  trivial: fix grammo in bus_for_each_dev() kerneldoc
  trivial: rbtree.txt: fix rb_entry() parameters in sample code
  trivial: spelling fix in ppc code comments
  trivial: fix typo in bio_alloc kernel doc
  trivial: Documentation/rbtree.txt: cleanup kerneldoc of rbtree.txt
  trivial: Miscellaneous documentation typo fixes
  trivial: fix typo milisecond/millisecond for documentation and source comments.
  ...
2009-06-14 13:46:25 -07:00
Linus Torvalds cd166bd0dd Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic:
  add generic lib/checksum.c
  asm-generic: add a generic uaccess.h
  asm-generic: add generic NOMMU versions of some headers
  asm-generic: add generic atomic.h and io.h
  asm-generic: add legacy I/O header files
  asm-generic: add generic versions of common headers
  asm-generic: make bitops.h usable
  asm-generic: make pci.h usable directly
  asm-generic: make get_rtc_time overridable
  asm-generic: rename page.h and uaccess.h
  asm-generic: rename atomic.h to atomic-long.h
  asm-generic: add a generic unistd.h
  asm-generic: add generic ABI headers
  asm-generic: add generic sysv ipc headers
  asm-generic: introduce asm/bitsperlong.h
  asm-generic: rename termios.h, signal.h and mman.h
2009-06-12 18:15:51 -07:00
Linus Torvalds 4ddbac9898 Merge branch 'perfcounters-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'perfcounters-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  perf_counter: Start documenting HAVE_PERF_COUNTERS requirements
  perf_counter: Add forward/backward attribute ABI compatibility
  perf record: Explicity program a default counter
  perf_counter: Remove PERF_TYPE_RAW special casing
  perf_counter: PERF_TYPE_HW_CACHE is a hardware counter too
  powerpc, perf_counter: Fix performance counter event types
  perf_counter/x86: Add a quirk for Atom processors
  perf_counter tools: Remove one L1-data alias
2009-06-12 13:16:52 -07:00
Linus Torvalds e349792a38 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6: (290 commits)
  ALSA: pcm - Update document about xrun_debug proc file
  ALSA: lx6464es - support standard alsa module parameters
  ALSA: snd_usb_caiaq: set mixername
  ALSA: hda - add quirk for STAC92xx (SigmaTel STAC9205)
  ALSA: use card device as parent for jack input-devices
  ALSA: sound/ps3: Correct existing and add missing annotations
  ALSA: sound/ps3: Restructure driver source
  ALSA: sound/ps3: Fix checkpatch issues
  ASoC: Fix lm4857 control
  ALSA: ctxfi - Clear PCM resources at hw_params and hw_free
  ALSA: ctxfi - Check the presence of SRC instance in PCM pointer callbacks
  ALSA: ctxfi - Add missing start check in atc_pcm_playback_start()
  ALSA: ctxfi - Add use_system_timer module option
  ALSA: usb - Add boot quirk for C-Media 6206 USB Audio
  ALSA: ctxfi - Fix wrong model id for UAA
  ALSA: ctxfi - Clean up probe routines
  ALSA: hda - Fix the previous tagra-8ch patch
  ALSA: hda - Add 7.1 support for MSI GX620
  ALSA: pcm - A helper function to compose PCM stream name for debug prints
  ALSA: emu10k1 - Fix minimum periods for efx playback
  ...
2009-06-12 11:16:27 -07:00
Sankar P 5cdcd9d691 trivial: spelling fix in ppc code comments
Fixes a trivial spelling error in powerpc code comments.

Signed-off-by: Sankar P <sankar.curiosity@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2009-06-12 18:01:47 +02:00
Jaswinder Singh Rajput 4c921126fe powerpc, perf_counter: Fix performance counter event types
Sachin Sant reported these compiler errors:

 CC      arch/powerpc/kernel/power7-pmu.o
arch/powerpc/kernel/power7-pmu.c:297: error: PERF_COUNT_CPU_CYCLES undeclared here (not in a function)

Which happened because a last-minute rename of symbols crossed with
the Power7 support patch.

Fix this by using the new symbol names.

Reported-by: Sachin Sant <sachinp@in.ibm.com>
Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: linuxppc-dev@ozlabs.org
LKML-Reference: <1244788494.5554.1.camel@ht.satnam>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-06-12 14:21:11 +02:00
Rusty Russell 5933048c69 module: cleanup FIXME comments about trimming exception table entries.
Everyone cut and paste this comment from my original one.  We now do
it generically, so cut the comments.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Cc: Amerigo Wang <amwang@redhat.com>
2009-06-12 21:47:05 +09:30
Arnd Bergmann 5b02ee3d21 asm-generic: merge branch 'master' of torvalds/linux-2.6
Fixes a merge conflict against the x86 tree caused by a fix to
atomic.h which I renamed to atomic_long.h.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2009-06-12 11:32:58 +02:00
Benjamin Herrenschmidt bc47ab0241 Merge commit 'origin/master' into next
Manual merge of:
	arch/powerpc/kernel/asm-offsets.c
2009-06-12 16:53:38 +10:00
Benjamin Herrenschmidt 37f9ef553b powerpc: Fix bug in move of altivec code to vector.S
The patch that moved to vector.S and made common between 32 and 64-bit the
altivec code had a nasty bug on 32-bit (did I really test that ?) which
causes the kernel to blr back into userspace ... oops :-)

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-06-12 16:51:41 +10:00
Stephen Rothwell e14112d1bd perfcounters: remove powerpc definitions of perf_counter_do_pending
Commit 925d519ab8 ("perf_counter:
unify and fix delayed counter wakeup") added global definitions.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Acked-by: Paul Mackerras <paulus@samba.org>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-06-11 20:03:13 -07:00
Benjamin Herrenschmidt 10f52dd9fe Merge commit 'jwb/next' into next 2009-06-12 10:35:52 +10:00
Linus Torvalds 8a1ca8cedd Merge branch 'perfcounters-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'perfcounters-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (574 commits)
  perf_counter: Turn off by default
  perf_counter: Add counter->id to the throttle event
  perf_counter: Better align code
  perf_counter: Rename L2 to LL cache
  perf_counter: Standardize event names
  perf_counter: Rename enums
  perf_counter tools: Clean up u64 usage
  perf_counter: Rename perf_counter_limit sysctl
  perf_counter: More paranoia settings
  perf_counter: powerpc: Implement generalized cache events for POWER processors
  perf_counters: powerpc: Add support for POWER7 processors
  perf_counter: Accurate period data
  perf_counter: Introduce struct for sample data
  perf_counter tools: Normalize data using per sample period data
  perf_counter: Annotate exit ctx recursion
  perf_counter tools: Propagate signals properly
  perf_counter tools: Small frequency related fixes
  perf_counter: More aggressive frequency adjustment
  perf_counter/x86: Fix the model number of Intel Core2 processors
  perf_counter, x86: Correct some event and umask values for Intel processors
  ...
2009-06-11 14:01:07 -07:00
Arnd Bergmann 5b17e1cd89 asm-generic: rename page.h and uaccess.h
The current asm-generic/page.h only contains the get_order
function, and asm-generic/uaccess.h only implements
unaligned accesses. This renames the file to getorder.h
and uaccess-unaligned.h to make room for new page.h
and uaccess.h file that will be usable by all simple
(e.g. nommu) architectures.

Signed-off-by: Remis Lima Baima <remis.developer@googlemail.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2009-06-11 21:02:17 +02:00
Arnd Bergmann 72099ed271 asm-generic: rename atomic.h to atomic-long.h
The existing asm-generic/atomic.h only defines the
atomic_long type. This renames it to atomic-long.h
so we have a place to add a truly generic atomic.h
that can be used on all non-SMP systems.

Signed-off-by: Remis Lima Baima <remis.developer@googlemail.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Ingo Molnar <mingo@elte.hu>
2009-06-11 21:02:17 +02:00
Arnd Bergmann c31ae4bb4a asm-generic: introduce asm/bitsperlong.h
This provides a reliable way for asm-generic/types.h and other
files to find out if it is running on a 32 or 64 bit platform.

We cannot use CONFIG_64BIT for this in headers that are included
from user space because CONFIG symbols are not available there.
We also cannot do it inside of asm/types.h because some headers
need the word size but cannot include types.h.

The solution is to introduce a new header <asm/bitsperlong.h>
that defines both __BITS_PER_LONG for user space and
BITS_PER_LONG for usage in the kernel. The asm-generic
version falls back to 32 bit unless the architecture overrides
it, which I did for all 64 bit platforms.

Signed-off-by: Remis Lima Baima <remis.developer@googlemail.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2009-06-11 21:02:14 +02:00
Arnd Bergmann 63b852a6b6 asm-generic: rename termios.h, signal.h and mman.h
The existing asm-generic versions are incomplete and included
by some architectures. New architectures should be able
to use a generic version, so rename the existing files and
change all users, which lets us add the new files.

Signed-off-by: Remis Lima Baima <remis.developer@googlemail.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2009-06-11 21:01:52 +02:00
Linus Torvalds c9059598ea Merge branch 'for-2.6.31' of git://git.kernel.dk/linux-2.6-block
* 'for-2.6.31' of git://git.kernel.dk/linux-2.6-block: (153 commits)
  block: add request clone interface (v2)
  floppy: fix hibernation
  ramdisk: remove long-deprecated "ramdisk=" boot-time parameter
  fs/bio.c: add missing __user annotation
  block: prevent possible io_context->refcount overflow
  Add serial number support for virtio_blk, V4a
  block: Add missing bounce_pfn stacking and fix comments
  Revert "block: Fix bounce limit setting in DM"
  cciss: decode unit attention in SCSI error handling code
  cciss: Remove no longer needed sendcmd reject processing code
  cciss: change SCSI error handling routines to work with interrupts enabled.
  cciss: separate error processing and command retrying code in sendcmd_withirq_core()
  cciss: factor out fix target status processing code from sendcmd functions
  cciss: simplify interface of sendcmd() and sendcmd_withirq()
  cciss: factor out core of sendcmd_withirq() for use by SCSI error handling code
  cciss: Use schedule_timeout_uninterruptible in SCSI error handling code
  block: needs to set the residual length of a bidi request
  Revert "block: implement blkdev_readpages"
  block: Fix bounce limit setting in DM
  Removed reference to non-existing file Documentation/PCI/PCI-DMA-mapping.txt
  ...

Manually fix conflicts with tracing updates in:
	block/blk-sysfs.c
	drivers/ide/ide-atapi.c
	drivers/ide/ide-cd.c
	drivers/ide/ide-floppy.c
	drivers/ide/ide-tape.c
	include/trace/events/block.h
	kernel/trace/blktrace.c
2009-06-11 11:10:35 -07:00
Linus Torvalds 6cd8e300b4 Merge branch 'kvm-updates/2.6.31' of git://git.kernel.org/pub/scm/virt/kvm/kvm
* 'kvm-updates/2.6.31' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (138 commits)
  KVM: Prevent overflow in largepages calculation
  KVM: Disable large pages on misaligned memory slots
  KVM: Add VT-x machine check support
  KVM: VMX: Rename rmode.active to rmode.vm86_active
  KVM: Move "exit due to NMI" handling into vmx_complete_interrupts()
  KVM: Disable CR8 intercept if tpr patching is active
  KVM: Do not migrate pending software interrupts.
  KVM: inject NMI after IRET from a previous NMI, not before.
  KVM: Always request IRQ/NMI window if an interrupt is pending
  KVM: Do not re-execute INTn instruction.
  KVM: skip_emulated_instruction() decode instruction if size is not known
  KVM: Remove irq_pending bitmap
  KVM: Do not allow interrupt injection from userspace if there is a pending event.
  KVM: Unprotect a page if #PF happens during NMI injection.
  KVM: s390: Verify memory in kvm run
  KVM: s390: Sanity check on validity intercept
  KVM: s390: Unlink vcpu on destroy - v2
  KVM: s390: optimize float int lock: spin_lock_bh --> spin_lock
  KVM: s390: use hrtimer for clock wakeup from idle - v2
  KVM: s390: Fix memory slot versus run - v3
  ...
2009-06-11 10:03:30 -07:00
Ingo Molnar 940010c5a3 Merge branch 'linus' into perfcounters/core
Conflicts:
	arch/x86/kernel/irqinit.c
	arch/x86/kernel/irqinit_64.c
	arch/x86/kernel/traps.c
	arch/x86/mm/fault.c
	include/linux/sched.h
	kernel/exit.c
2009-06-11 17:55:42 +02:00
Peter Zijlstra 8be6e8f3c3 perf_counter: Rename L2 to LL cache
The top (fastest) and last level (biggest) caches are the most
interesting ones, performance wise.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
LKML-Reference: <new-submission>
[ Fixed the Nehalem LL table to LLC Reference/Miss events ]
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-06-11 17:54:17 +02:00
Peter Zijlstra f4dbfa8f31 perf_counter: Standardize event names
Pure renames only, to PERF_COUNT_HW_* and PERF_COUNT_SW_*.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-06-11 17:54:15 +02:00
Paul Mackerras 106b506c3a perf_counter: powerpc: Implement generalized cache events for POWER processors
This adds tables of event codes for the generalized cache events for
all the currently supported powerpc processors: POWER{4,5,5+,6,7} and
PPC970*, plus powerpc-specific code to use these tables when a
generalized cache event is requested.

Signed-off-by: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <18992.36430.933526.742969@drongo.ozlabs.ibm.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-06-11 16:48:37 +02:00
Paul Mackerras 4da52960fd perf_counters: powerpc: Add support for POWER7 processors
This adds the back-end for the PMU on POWER7 processors.  POWER7
has 4 fully-programmable counters and two fixed-function counters
(which do respect the freeze conditions, can generate interrupts,
and are writable, unlike PMC5/6 on POWER5+/6).

Signed-off-by: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <18992.36329.189378.17992@drongo.ozlabs.ibm.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-06-11 16:48:37 +02:00
Peter Zijlstra 9e350de37a perf_counter: Accurate period data
We currently log hw.sample_period for PERF_SAMPLE_PERIOD, however this is
incorrect. When we adjust the period, it will only take effect the next
cycle but report it for the current cycle. So when we adjust the period
for every cycle, we're always wrong.

Solve this by keeping track of the last_period.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-06-11 02:39:02 +02:00
Peter Zijlstra df1a132bf3 perf_counter: Introduce struct for sample data
For easy extension of the sample data, put it in a structure.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-06-11 02:39:02 +02:00
Linus Torvalds f0d5e12bd4 Merge branch 'irq-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'irq-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (76 commits)
  x86, apic: Fix dummy apic read operation together with broken MP handling
  x86, apic: Restore irqs on fail paths
  x86: Print real IOAPIC version for x86-64
  x86: enable_update_mptable should be a macro
  sparseirq: Allow early irq_desc allocation
  x86, io-apic: Don't mark pin_programmed early
  x86, irq: don't call mp_config_acpi_gsi() if update_mptable is not enabled
  x86, irq: update_mptable needs pci_routeirq
  x86: don't call read_apic_id if !cpu_has_apic
  x86, apic: introduce io_apic_irq_attr
  x86/pci: add 4 more return parameters to IO_APIC_get_PCI_irq_vector(), fix
  x86: read apic ID in the !acpi_lapic case
  x86: apic: Fixmap apic address even if apic disabled
  x86: display extended apic registers with print_local_APIC and cpu_debug code
  x86: read apic ID in the !acpi_lapic case
  x86: clean up and fix setup_clear/force_cpu_cap handling
  x86: apic: Check rev 3 fadt correctly for physical_apic bit
  x86/pci: update pirq_enable_irq() to setup io apic routing
  x86/acpi: move setup io apic routing out of CONFIG_ACPI scope
  x86/pci: add 4 more return parameters to IO_APIC_get_PCI_irq_vector()
  ...
2009-06-10 15:25:41 -07:00
Gleb Natapov 78646121e9 KVM: Fix interrupt unhalting a vcpu when it shouldn't
kvm_vcpu_block() unhalts vpu on an interrupt/timer without checking
if interrupt window is actually opened.

Signed-off-by: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
2009-06-10 11:48:33 +03:00
Takashi Iwai ba252af8d6 Merge branch 'topic/asoc' into for-linus
* topic/asoc: (135 commits)
  ASoC: Apostrophe patrol
  ASoC: codec tlv320aic23 fix bogus divide by 0 message
  ASoC: fix NULL pointer dereference in soc_suspend()
  ASoC: Fix build error in twl4030.c
  ASoC: SSM2602: assign last substream to the master when shutting down
  ASoC: Blackfin: document how anomaly 05000250 is handled
  ASoC: Blackfin: set the transfer size according the ac97_frame size
  ASoC: SSM2602: remove unsupported sample rates
  ASoC: TWL4030: Check the interface format for 4 channel mode
  ASoC: TWL4030: Use reg_cache in twl4030_init_chip
  ASoC: Initialise dev for the dummy S/PDIF DAI
  ASoC: Add dummy S/PDIF codec support
  ASoC: correct print specifiers for unsigneds
  ASoC: Modify mpc5200 AC97 driver to use V9 of spin_event_timeout()
  ASoC: Switch FSL SSI DAI over to symmetric_rates
  ASoC: Mark MPC5200 AC97 as BROKEN until PowerPC merge issues are resolved
  ASoC: Fabric bindings for STAC9766 on the Efika
  ASoC: Support for AC97 on Phytec pmc030 base board.
  ASoC: AC97 driver for mpc5200
  ASoC: Main rewite of the mpc5200 audio DMA code
  ...
2009-06-10 07:26:18 +02:00
Becky Bruce ec3cf2ece2 powerpc: Add support for swiotlb on 32-bit
This patch includes the basic infrastructure to use swiotlb
bounce buffering on 32-bit powerpc.  It is not yet enabled on
any platforms.  Probably the most interesting bit is the
addition of addr_needs_map to dma_ops - we need this as
a dma_op because the decision of whether or not an addr
can be mapped by a device is device-specific.

Signed-off-by: Becky Bruce <beckyb@kernel.crashing.org>
Acked-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-06-09 16:49:18 +10:00
Stephen Rothwell 1babddbc2e powerpc/spufs: Remove unused error path
Commit 45db924089 ("powerpc/spufs: Remove
double check for non-negative dentry") removed the only user of the
out_dput label, so remove it and the code following it.

Gets rid of this warning:

arch/powerpc/platforms/cell/spufs/inode.c: In function 'spufs_create':
arch/powerpc/platforms/cell/spufs/inode.c:647: warning: label 'out_dput' defined but not used

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-06-09 16:47:41 +10:00
Stephen Rothwell bcba0778ee powerpc: Fix warning when printing a resource_size_t
resource_size_t is 64 bits on PowerPC 64.

Gets rid of this warning:

arch/powerpc/kernel/pci_64.c: In function 'pcibios_map_io_space':
arch/powerpc/kernel/pci_64.c:504: warning: format '%016lx' expects type 'long unsigned int', but argument 2 has type 'resource_size_t'

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-06-09 16:47:41 +10:00
Stephen Rothwell 6d1386d517 powerpc/xmon: Remove unused variable in xmon.c
Gets rid of this warning:

arch/powerpc/xmon/xmon.c: In function 'dump_log_buf':
arch/powerpc/xmon/xmon.c:2133: warning: unused variable 'i'

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-06-09 16:47:40 +10:00
Stephen Rothwell 41febbc829 powerpc/pseries: Fix warnings when printing resource_size_t
resource_size_t is 64 bits on pseries

Gets rid of these warnings:

arch/powerpc/platforms/pseries/iommu.c: In function 'pci_dma_bus_setup_pSeries':
arch/powerpc/platforms/pseries/iommu.c:391: warning: format '%lx' expects type 'long unsigned int', but argument 2 has type 'resource_size_t'
arch/powerpc/platforms/pseries/iommu.c:417: warning: format '%lx' expects type 'long unsigned int', but argument 2 has type 'resource_size_t'

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-06-09 16:47:39 +10:00
Benjamin Herrenschmidt 944916858a powerpc: Shield code specific to 64-bit server processors
This is a random collection of added ifdef's around portions of
code that only mak sense on server processors. Using either
CONFIG_PPC_STD_MMU_64 or CONFIG_PPC_BOOK3S as seems appropriate.

This is meant to make the future merging of Book3E 64-bit support
easier.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-06-09 16:47:38 +10:00
Benjamin Herrenschmidt 91c60b5b82 powerpc: Separate PACA fields for server CPUs
This patch has no effect other than re-ordering PACA fields on
current server CPUs. It however is a pre-requisite for future
support of BookE 64-bit processors. Various parts of the PACA
struct are now moved under some ifdef's, either the new
CONFIG_PPC_BOOK3S or CONFIG_PPC_STD_MMU_64, whatever seems more
appropriate.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.craashing.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-06-09 16:47:38 +10:00
Benjamin Herrenschmidt 0ebc4cdaa3 powerpc: Split exception handling out of head_64.S
To prepare for future support of Book3E 64-bit PowerPC processors,
which use a completely different exception handling, we move that
code to a new exceptions-64s.S file.

This file is #included from head_64.S due to some of the absolute
address requirements which can currently only be fulfilled from
within that file.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-06-09 16:47:37 +10:00
Benjamin Herrenschmidt 5b7c3c918c powerpc: Introduce CONFIG_PPC_BOOK3S
This patch introduce a new Kconfig option, CONFIG_PPC_BOOK3S
that represents processors that are compliant with the "classic"
(aka "server") variant of the PowerPC architecture.

It replaces CONFIG_6xx on 32-bit (though the symbol is still
defined for compatibility) and encompass all currently supported
64-bit processors.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-06-09 16:47:22 +10:00
Benjamin Herrenschmidt e821ea70f3 powerpc: Move VMX and VSX asm code to vector.S
Currently, load_up_altivec and give_up_altivec are duplicated
in 32-bit and 64-bit. This creates a common implementation that
is moved away from head_32.S, head_64.S and misc_64.S and into
vector.S, using the same macros we already use for our common
implementation of load_up_fpu.

I also moved the VSX code over to vector.S though in that case
I didn't make it build on 32-bit (yet).

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-06-09 16:46:25 +10:00
Benjamin Herrenschmidt d3f6204a7d powerpc: Set init_bootmem_done on NUMA platforms as well
For some obscure reason, we only set init_bootmem_done after initializing
bootmem when NUMA isn't enabled. We even document this next to the declaration
of that global in system.h which of course I didn't read before I had to
debug why some WIP code wasn't working properly...

This patch changes it so that we always set it after bootmem is initialized
which should have always been the case... go figure !

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-06-09 16:43:04 +10:00
Benjamin Herrenschmidt b46b6942b3 powerpc/mm: Fix a AB->BA deadlock scenario with nohash MMU context lock
The MMU context_lock can be taken from switch_mm() while the
rq->lock is held. The rq->lock can also be taken from interrupts,
thus if we get interrupted in destroy_context() with the context
lock held and that interrupt tries to take the rq->lock, there's
a possible deadlock scenario with another CPU having the rq->lock
and calling switch_mm() which takes our context lock.

The fix is to always ensure interrupts are off when taking our
context lock. The switch_mm() path is already good so this fixes
the destroy_context() path.

While at it, turn the context lock into a new style spinlock.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-06-09 16:43:04 +10:00
Benjamin Herrenschmidt 3035c8634f powerpc/mm: Fix some SMP issues with MMU context handling
This patch fixes a couple of issues that can happen as a result
of steal_context() dropping the context_lock when all possible
PIDs are ineligible for stealing (hopefully an extremely hard to
hit occurence).

This case exposes the possibility of a stale context_mm[] entry
to be seen since destroy_context() doesn't clear it and the free
map isn't re-tested. It also means steal_context() will not notice
a context freed while the lock was help, thus possibly trying to
steal a context when a free one was available.

This fixes it by always returning to the caller from steal_context
when it dropped the lock with a return value that causes the
caller to re-samble the number of free contexts, along with
properly clearing the context_mm[] array for destroyed contexts.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-06-09 16:42:21 +10:00
Roland McGrath ec097c84df powerpc: Add PTRACE_SINGLEBLOCK support
Reworked by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

This adds block-step support on powerpc, including a PTRACE_SINGLEBLOCK
request for ptrace.

The BookE implementation is tweaked to fire a single step after a
block step in order to mimmic the server behaviour.

Signed-off-by: Roland McGrath <roland@redhat.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-06-09 13:29:25 +10:00
Ingo Molnar 75b5032212 Merge branch 'linus' into perfcounters/core
Merge reason: Pick up the latest fixes before the -v8 perfcounters
	      release.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-06-06 20:21:28 +02:00
Roderick Colenbrander b907abc9f2 powerpc/virtex: Add ml510 reference design device tree
As subject says, add dts files for Xilinx ML510 reference design with
the PCI host bridge device.

Signed-off-by: Roderick Colenbrander <thunderbird2k@gmail.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2009-06-06 10:16:00 -06:00
Roderick Colenbrander e52ba9c541 powerpc/virtex: Add Xilinx ML510 reference design support
Signed-off-by: Roderick Colenbrander <thunderbird2k@gmail.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2009-06-06 10:15:24 -06:00
Grant Likely 1745fbc744 powerpc/virtex: refactor intc driver and add support for i8259 cascading
This patch refactors some of the xilinx_intc interrupt controller driver
and adds support for cascading an i8259 off one of the irq lines.

This patch was based on the ML510 support work done by Roderick
Colenbrander.

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2009-06-06 10:15:03 -06:00
Roderick Colenbrander 64f1650247 powerpc/virtex: Add support for Xilinx PCI host bridge
This patch adds support for the Xilinx plbv46-pci-1.03.a PCI host
bridge IPcore.

Signed-off-by: Roderick Colenbrander <thunderbird2k@gmail.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2009-06-06 10:14:22 -06:00
Ingo Molnar a21ca2cac5 perf_counter: Separate out attr->type from attr->config
Counter type is a frequently used value and we do a lot of
bit juggling by encoding and decoding it from attr->config.

Clean this up by creating a separate attr->type field.

Also clean up the various similarly complex user-space bits
all around counter attribute management.

The net improvement is significant, and it will be easier
to add a new major type (which is what triggered this cleanup).

(This changes the ABI, all tools are adapted.)
(PowerPC build-tested.)

Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: Marcelo Tosatti <mtosatti@redhat.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-06-06 11:37:22 +02:00
Josh Boyer 336ff73542 powerpc/40x: Convert AMCC Kilauea/Halekala boards to ppc40x_simple
This cleans up the kilauea/halekala board ports to use the ppc40x_simple
platform support.

Tested-by: Stefan Roese <sr@denx.de>
Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
2009-06-04 09:02:21 -04:00
Josh Boyer 194ff1c387 powerpc/40x: Convert AMCC Makalu board to ppc40x_simple
This cleans up the makalu board port to use the ppc40x_simple platform
support.

Tested-by: Stefan Roese <sr@denx.de>
Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
2009-06-04 09:02:09 -04:00
Stefan Roese 7b8d639cfc powerpc/4xx: Sequoia: Enable NAND support
Now that the 4xx NAND driver is available again in arch/powerpc, let's
enable it on Sequoia. This patch also disables the early debug messages
(CONFIG_PPC_EARLY_DEBUG) in the Sequoia defconfig.

Signed-off-by: Stefan Roese <sr@denx.de>
Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
2009-06-04 09:01:16 -04:00
Paul Mackerras 1b58c2515b perf_counter: powerpc: Use new identifier names in powerpc-specific code
Commit b23f3325 ("perf_counter: Rename various fields") fixed up
most of the uses of the renamed fields, but missed one instance
of "record_type" in powerpc-specific code which needs to be changed
to "sample_type", and a "PERF_RECORD_ADDR" in the same statement that
needs to be changed to "PERF_SAMPLE_ADDR", causing compilation
errors on powerpc.  This fixes it.

Signed-off-by: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <18983.3111.770392.800486@cargo.ozlabs.ibm.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-06-04 13:20:11 +02:00
Josh Boyer 27db1fea18 powerpc/4xx: Disable PCI_LEGACY
The single board defconfig files were missed during the cleanup
of CONFIG_PCI_LEGACY in the multi-board config files.  This
disables the option for the single board configs, as it isn't
used by anything for these boards.

Reported-by: Cheng Renquan <crquan@gmail.com>
Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
2009-06-03 16:23:15 -04:00
Haiying Wang 047584ce94 net/ucc_geth: Add SGMII support for UEC GETH driver
Signed-off-by: Haiying Wang <Haiying.Wang@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-06-03 02:52:47 -07:00
Paul Mackerras dcd945e0d8 perf_counter: powerpc: Fix race causing "oops trying to read PMC0" errors
When using interrupting counters and limited (non-interrupting)
counters at the same time, it's possible that we get an
interrupt in write_mmcr0() after writing MMCR0 but before we
have set up the counters using limited PMCs.  What happens then
is that we get into perf_counter_interrupt() with
counter->hw.idx = 0 for the limited counters, leading to the
"oops trying to read PMC0" error message being printed.

This fixes the problem by making perf_counter_interrupt()
robust against counter->hw.idx being zero (the counter is just
ignored in that case) and also by changing write_mmcr0() to
write MMCR0 initially with the counter overflow interrupt
enable bits masked (set to 0).  If the MMCR0 value requested by
the caller has either of those bits set, we write MMCR0 again
with the requested value of those bits after setting up the
limited counters properly.

Signed-off-by: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: Marcelo Tosatti <mtosatti@redhat.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: John Kacur <jkacur@redhat.com>
Cc: Stephane Eranian <eranian@googlemail.com>
LKML-Reference: <18982.17684.138182.954599@cargo.ozlabs.ibm.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-06-03 11:49:53 +02:00
Paul Mackerras 6984efb692 perf_counter: powerpc: Fix event alternative code generation on POWER5/5+
Commit ef923214 ("perf_counter: powerpc: use u64 for event
codes internally") introduced a bug where the return value from
function find_alternative_bdecode gets put into a u64 variable
and later tested to see if it is < 0.  The effect is that we
get extra, bogus event code alternatives on POWER5 and POWER5+,
leading to error messages such as "oops compute_mmcr failed"
being printed and counters not counting properly.

This fixes it by using s64 for the return type of
find_alternative_bdecode and for the local variable that the
caller puts the value in.  It also makes the event argument a
u64 on POWER5+ for consistency.

Signed-off-by: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: Marcelo Tosatti <mtosatti@redhat.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: John Kacur <jkacur@redhat.com>
Cc: Stephane Eranian <eranian@googlemail.com>
LKML-Reference: <18982.17586.666132.90983@cargo.ozlabs.ibm.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-06-03 11:49:52 +02:00
Peter Zijlstra 0d48696f87 perf_counter: Rename perf_counter_hw_event => perf_counter_attr
The structure isn't hw only and when I read event, I think about those
things that fall out the other end. Rename the thing.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: Marcelo Tosatti <mtosatti@redhat.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: John Kacur <jkacur@redhat.com>
Cc: Stephane Eranian <eranian@googlemail.com>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-06-02 21:45:33 +02:00
Peter Zijlstra b23f3325ed perf_counter: Rename various fields
A few renames:

  s/irq_period/sample_period/
  s/irq_freq/sample_freq/
  s/PERF_RECORD_/PERF_SAMPLE_/
  s/record_type/sample_type/

And change both the new sample_type and read_format to u64.

Reported-by: Stephane Eranian <eranian@googlemail.com>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: Marcelo Tosatti <mtosatti@redhat.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: John Kacur <jkacur@redhat.com>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-06-02 21:45:30 +02:00
Benjamin Herrenschmidt 60e59f6882 powerpc/pmac: Update PowerMac 32-bit defconfig
This mostly adds back AppleTouch support and adds CONFIG_HIGHMEM
by default.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-06-02 11:12:35 +10:00
Stephen Rothwell baf75b0a42 powerpc/pci: Fix annotation of pcibios_claim_one_bus
It was __devinit, but it is also within a CONFIG_HOTPLUG guarded section
of code, so the __devinit does nothing but cause the following warning:

WARNING: vmlinux.o(.text+0x107a8): Section mismatch in reference from the function pcibios_finish_adding_to_bus() to the function .devinit.text:pcibios_claim_one_bus()
The function pcibios_finish_adding_to_bus() references
the function __devinit pcibios_claim_one_bus().
This is often because pcibios_finish_adding_to_bus lacks a __devinit
annotation or the annotation of pcibios_claim_one_bus is wrong.

It is also only (externally) used in arch/powerpc/kernel/of_platform.c
which cannot be built as a module so don't export it.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-06-02 11:09:12 +10:00
Michael Ellerman 92e02a5125 powerpc/ftrace: Use PPC_INST_NOP directly
There's no need to wrap PPC_INST_NOP in a static inline.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-06-02 10:36:53 +10:00
Michael Ellerman 898b160fe9 powerpc/ftrace: Remove unused macros
These macros were used in the original port, but since commit
e4486fe316 (ftrace, use probe_kernel API to modify code) they
are unused.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-06-02 10:36:46 +10:00
Michael Ellerman 4a9e3f8e94 powerpc/ftrace: Use ppc_function_entry() instead of GET_ADDR
Use ppc_function_entry() from code-patching.h.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-06-02 10:36:32 +10:00
Nathan Fontenot f03cdb3a66 powerpc: Display processor virtualization resource allocs in lparcfg
This patch updates the output from /proc/ppc64/lparcfg to display the
processor virtualization resource allocations for a shared processor
partition.

This information is already gathered via the h_get_ppp call, we just
have to make sure that the ibm,partition-performance-parameters-level
property is >= 1 to ensure that the information is valid.

Signed-off-by: Nathan Fontenot <nfont@austin.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-06-02 10:36:10 +10:00
Anton Blanchard f8729e8531 powerpc: Convert RTAS event scan from kernel thread to workqueue
RTAS event scan has to run across all cpus. Right now we use a kernel
thread and set_cpus_allowed but in doing so we wake up the previous cpu
unnecessarily.

Some ftrace output shows this:

previous cpu (2):
[002]  7.022331: sched_switch: task swapper:0 [140] ==> rtasd:194 [120]
[002]  7.022338: sched_switch: task rtasd:194 [120] ==> migration/2:9 [0]
[002]  7.022344: sched_switch: task migration/2:9 [0] ==> swapper:0 [140]

next cpu (3):
[003]  7.022345: sched_switch: task swapper:0 [140] ==> rtasd:194 [120]
[003]  7.022371: sched_switch: task rtasd:194 [120] ==> swapper:0 [140]

We can use schedule_delayed_work_on and avoid the unnecessary wakeup.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-06-02 10:35:32 +10:00
Michael Neuling 2d8ae638bb powerpc: Make the NR_CPUS max 8192
We can compile and boot with NR_CPUS=8192, so make this the max.  1024
was an arbitrary decision anyway.

Signed-off-by: Michael Neuling <mikey@neuling.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-06-02 10:32:24 +10:00
Ingo Molnar 3d58f48ba0 Merge branch 'linus' into irq/numa
Conflicts:
	arch/mips/sibyte/bcm1480/irq.c
	arch/mips/sibyte/sb1250/irq.c

Merge reason: we gathered a few conflicts plus update to latest upstream fixes.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-06-01 21:06:21 +02:00
Ingo Molnar 23db9f430b Merge branch 'linus' into perfcounters/core
Merge reason: merge almost-rc8 into perfcounters/core, which was -rc6
              based - to pick up the latest upstream fixes.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-06-01 10:01:39 +02:00
Benjamin Herrenschmidt 435462c6e6 Merge branch 'merge' into next 2009-05-29 13:54:52 +10:00
Benjamin Herrenschmidt 8b31e49d1d powerpc: Fix up dma_alloc_coherent() on platforms without cache coherency.
The implementation we just revived has issues, such as using a
Kconfig-defined virtual address area in kernel space that nothing
actually carves out (and thus will overlap whatever is there),
or having some dependencies on being self contained in a single
PTE page which adds unnecessary constraints on the kernel virtual
address space.

This fixes it by using more classic PTE accessors and automatically
locating the area for consistent memory, carving an appropriate hole
in the kernel virtual address space, leaving only the size of that
area as a Kconfig option. It also brings some dma-mask related fixes
from the ARM implementation which was almost identical initially but
grew its own fixes.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-05-27 16:33:59 +10:00
Benjamin Herrenschmidt f637a49e50 powerpc: Minor cleanups of kernel virt address space definitions
Make FIXADDR_TOP a compile time constant and cleanup a
couple of definitions relative to the layout of the kernel
address space on ppc32. We also print out that layout at
boot time for debugging purposes.

This is a pre-requisite for properly fixing non-coherent
DMA allocactions.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-05-27 16:32:50 +10:00
Benjamin Herrenschmidt b16e7766d6 powerpc: Move dma-noncoherent.c from arch/powerpc/lib to arch/powerpc/mm
(pre-requisite to make the next patches more palatable)

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-05-27 16:32:05 +10:00
Benjamin Herrenschmidt 84532a0fc3 Revert "powerpc: Rework dma-noncoherent to use generic vmalloc layer"
This reverts commit 33f00dcedb.

    While it was a good idea to try to use the mm/vmalloc.c allocator instead
    of our own (in fact, ours is itself a dup on an old variant of the vmalloc
    one), unfortunately, the approach is terminally busted since
    dma_alloc_coherent() can be called at interrupt time or in atomic contexts
    and there's little chances we'll make the code in mm/vmalloc.c cope with\       that :-(

    Until we can get the generic code to forbid that idiocy and fix all
    drivers abusing it, we pretty much have no choice but revert to
    our custom virtual space allocator.

    There's also a problem with SMP safety since freeing such mapping
    would require an IPI which cannot be done at interrupt time.

    However, right now, I don't think we support any platform that is
    both SMP and has non-coherent DMA (don't laugh, I know such things
    do exist !) so we can sort that out later.

    Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-05-27 13:33:14 +10:00
Paul Mackerras 8a7b8cb91f perf_counter: powerpc: Implement interrupt throttling
This implements interrupt throttling on powerpc.  Since we don't have
individual count enable/disable or interrupt enable/disable controls
per counter, this simply sets the hardware counter to 0, meaning that
it will not interrupt again until it has counted 2^31 counts, which
will take at least 2^30 cycles assuming a maximum of 2 counts per
cycle.  Also, we set counter->hw.period_left to the maximum possible
value (2^63 - 1), so we won't report overflows for this counter for
the forseeable future.

The unthrottle operation restores counter->hw.period_left and the
hardware counter so that we will once again report a counter overflow
after counter->hw.irq_period counts.

[ Impact: new perfcounters robustness feature on PowerPC ]

Signed-off-by: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
LKML-Reference: <18971.35823.643362.446774@cargo.ozlabs.ibm.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-05-26 09:43:59 +02:00
Hideo Saito 8e35961b57 powerpc/mm: Fix broken MMU PID stealing on !SMP
The recent rework of the MMU PID handling for non-hash CPUs has a
subtle bug in the !SMP "optimized" variant of the PID stealing
function.  It clears the PID in the mm context before it calls
local_flush_tlb_mm(). However, the later will not flush anything
if the PID in the context is clear...

Signed-off-by: Hideo Saito <hsaito.ppc@gmail.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-05-26 13:46:49 +10:00
Jon Smirl 0bc53a67ac ASoC: Add a few more mpc5200 PSC defines
Add a few more mpc5200 PSC defines. More bit fields defines for mpc5200
PSC registers.

Signed-off-by: Jon Smirl <jonsmirl@gmail.com>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2009-05-24 19:31:04 +01:00
Martin K. Petersen e1defc4ff0 block: Do away with the notion of hardsect_size
Until now we have had a 1:1 mapping between storage device physical
block size and the logical block sized used when addressing the device.
With SATA 4KB drives coming out that will no longer be the case.  The
sector size will be 4KB but the logical block size will remain
512-bytes.  Hence we need to distinguish between the physical block size
and the logical ditto.

This patch renames hardsect_size to logical_block_size.

Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2009-05-22 23:22:54 +02:00
Michael Ellerman 6eb0ac0389 powerpc/maple: Add a quirk to disable MSI for IPR on Bimini
Something in the HW or FW setup is busted and MSIs aren't working with
IPR on Bimini, so until we figure out exaxtly what's up, we quirk them
out

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-05-22 16:01:11 +10:00
Kumar Gala d7b41b1fdf powerpc/pci: clean up direct access to sysdata by iseries platform
We shouldn't directly access sysdata to get the device node.  We should
be calling pci_device_to_OF_node().

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Tested-by: Stephen Rothwell <sfr@canb.auug.org.au>
Acked-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-05-21 15:44:26 +10:00
Geert Uytterhoeven 80947e7c99 powerpc: Keep track of emulated instructions
If CONFIG_PPC_EMULATED_STATS is enabled, make available counters for the
various classes of emulated instructions under
/sys/kernel/debug/powerpc/emulated_instructions/ (assumed debugfs is mounted on
/sys/kernel/debug).  Optionally (controlled by
/sys/kernel/debug/powerpc/emulated_instructions/do_warn), rate-limited warnings
can be printed to the console when instructions are emulated.

Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-05-21 15:44:26 +10:00
Vinay Sridhar f312deb4cd powerpc/xmon: Add dl command to dump contents of __log_buf
Hello All,

Quite a while back Michael Ellerman had posted a patch to add support to xmon to print the contents of the console log pointed to by __log_buf.
Here's the link to that patch - http://ozlabs.org/pipermail/linuxppc64-dev/2005-March/003657.html
I've ported the patch in the above link to 2.6.30-rc5 and have tested it.

Thanks & regards,
Vinay

Signed-off-by: Michael Ellerman <michael at ellerman.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-05-21 15:44:25 +10:00
Becky Bruce 2138422bba powerpc: Use sg->dma_length in sg_dma_len() macro on 32-bit
Currently, the 32-bit code uses sg->length instead of sg->dma_lentgh
to report sg_dma_len.  However, since the default dma code for 32-bit
(the dma_direct case) sets dma_length and length to the same thing,
we should be able to use dma_length there as well.  This gets rid of
some 32-vs-64-bit ifdefs, and is needed by the swiotlb code which
actually distinguishes between dma_length and length.

Signed-off-by: Becky Bruce <beckyb@kernel.crashing.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-05-21 15:44:25 +10:00
Jan Blunck 45db924089 powerpc/spufs: Remove double check for non-negative dentry
This patch removes an unnecessary double check if the dentry returned by
lookup_create() is actually non-negative. Since lookup_create() itself returns
an error in this case just remove the check.

Signed-off-by: Jan Blunck <jblunck@suse.de>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-05-21 15:44:25 +10:00
Anton Blanchard 8d165db107 powerpc: Improve decrementer accuracy
I have been looking at sources of OS jitter and notice that after a long
NO_HZ idle period we wakeup too early:

relative time (us)    event
                      timer irq exit
    999946.405        timer irq entry
         4.835        timer irq exit
        21.685        timer irq entry
         3.540          timer (tick_sched_timer) entry

Here we slept for just under a second then took a timer interrupt that did
nothing. 21.685 us later we wake up again and do the work.

We set a rather low shift value of 16 for the decrementer clockevent, which I
think is causing this issue. On this box we have a 207MHz decrementer and see:

clockevent: decrementer mult[3501] shift[16] cpu[0]

For calculations of large intervals this mult/shift combination could be
off by a significant amount. I notice the sparc code has a loop that iterates
to find a mult/shift combination that maximises the shift value while
keeping mult under 32bit. With the patch below we get:

clockevent: decrementer mult[35015c20] shift[32] cpu[15]

And we no longer see the spurious wakeups.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-05-21 15:44:24 +10:00
Kumar Gala 9aa4e7b169 powerpc/pci: Remove redundant pcnet32 fixup
The pcnet32 driver has had in its device id table for some time a match
against the "broken" vendor ID.  No need to fake out the vendor ID
with an explicit fixup.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-05-21 15:44:24 +10:00
Kumar Gala cf6692c07a powerpc/pci: Cleanup some minor cruft
* Removed building setup-irq on ppc32, we don't use it anymore
* Remove duplicate prototype for setup_grackle() code that needs it
  gets it from <asm/grackle.h>
* Removed gratuitous pci_io_size type differences between ppc32/ppc64

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-05-21 15:44:24 +10:00
Kumar Gala 2eb4afb69f powerpc/pci: Move pseries code into pseries platform specific area
There doesn't appear to be any specific reason that we need to setup the
pseries specific notifier in generic arch pci code.  Move it into pseries
land.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-05-21 15:44:24 +10:00
Kumar Gala 58513dc40d powerpc/pci: Clean up direct access to sysdata by celleb platforms
We shouldn't directly access sysdata to get the device node to just
go get the pci_controller.  We can call pci_bus_to_host() for this
purpose.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-05-21 15:44:24 +10:00
Kumar Gala 2f52297665 powerpc/pci: Clean up direct access to sysdata by RTAS
We shouldn't directly access sysdata to get the device node but call
pci_bus_to_OF_node() for this purpose.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-05-21 15:44:23 +10:00
Kumar Gala 95272262aa powerpc/pci: Clean up direct access to sysdata by powermac platforms
We shouldn't directly access sysdata to get the device node but call
pci_bus_to_OF_node() for this purpose.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-05-21 15:44:23 +10:00
Kumar Gala bccd6f73f0 powerpc/pci: Clean up direct access to sysdata on tsi108 platforms
We shouldn't directly access sysdata to get the pci_controller.  Instead
use pci_bus_to_host() for this purpose.  In the future we might have
sysdata be a device_node to match ppc64 and unify the code between ppc32
& ppc64.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-05-21 15:44:23 +10:00
Kumar Gala 8456993ead powerpc/pci: Clean up direct access to sysdata by CHRP platforms
We shouldn't directly access sysdata to get the pci_controller.  Instead
use pci_bus_to_host() for this purpose.  In the future we might have
sysdata be a device_node to match ppc64 and unify the code between ppc32
& ppc64.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-05-21 15:44:23 +10:00
Kumar Gala f159edaef3 powerpc/pci: Clean up direct access to sysdata by 4xx platforms
We shouldn't directly access sysdata to get the pci_controller.  Instead
use pci_bus_to_host() for this purpose.  In the future we might have
sysdata be a device_node to match ppc64 and unify the code between ppc32
& ppc64.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-05-21 15:44:23 +10:00
Kumar Gala 5b21fb8e76 powerpc/pci: Clean up direct access to sysdata by 52xx platforms
We shouldn't directly access sysdata to get the pci_controller.  Instead
use pci_bus_to_host() for this purpose.  In the future we might have
sysdata be a device_node to match ppc64 and unify the code between ppc32
& ppc64.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-05-21 15:44:22 +10:00
Kumar Gala 8206a110cb powerpc/pci: Clean up direct access to sysdata by FSL platforms
We shouldn't directly access sysdata to get the pci_controller.  Instead
use pci_bus_to_host() for this purpose.  In the future we might have
sysdata be a device_node to match ppc64 and unify the code between ppc32
& ppc64.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-05-21 15:44:22 +10:00
Kumar Gala 19afa40797 powerpc/pci: Clean up direct access to sysdata by indirect ops
We shouldn't directly access sysdata to get the pci_controller.  Instead
use pci_bus_to_host() for this purpose.  In the future we might have
sysdata be a device_node to match ppc64 and unify the code between ppc32
& ppc64.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-05-21 15:44:22 +10:00
Milton Miller 60dbf43851 powerpc: Add 2.06 tlbie mnemonics
This adds the PowerPC 2.06 tlbie mnemonics and keeps backwards
compatibilty for CPUs before 2.06.

Only useful for bare metal systems.

Signed-off-by: Milton Miller <miltonm@bga.com>
Signed-off-by: Michael Neuling <mikey@neuling.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-05-21 15:44:21 +10:00
Milton Miller af20aeb1a3 powerpc: Enable MMU feature sections for inline asm
powerpc: Enable MMU feature sections for inline asm

This adds the ability to do MMU feature sections for inline asm.

Signed-off-by: Milton Miller <miltonm@bga.com>
Signed-off-by: Michael Neuling <mikey@neuling.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-05-21 15:44:21 +10:00
Michael Neuling dfb432cb96 powerpc: Move VSX load/stores into ppc-opcode.h
Cleans up the VSX load/store instructions by moving them into
ppc-opcode.h.

Signed-off-by: Michael Neuling <mikey@neuling.org>
Acked-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-05-21 15:44:21 +10:00
Michael Neuling da6b43c833 powerpc: Cleanup macros in ppc-opcode.h
Make macros more braces happy.

Signed-off-by: Michael Neuling <mikey@neuling.org>
Acked-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-05-21 15:44:21 +10:00
Kumar Gala d89ebca224 powerpc: Fix up elf_read_implies_exec() usage
We believe if a toolchain supports PT_GNU_STACK that it sets the proper
PHDR permissions.  Therefor elf_read_implies_exec() should only be true
if we don't see PT_GNU_STACK set.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-05-21 15:44:21 +10:00
Michael Ellerman 8e27f4dab3 powerpc/irq: We don't need __do_IRQ() anymore
So select GENERIC_HARDIRQS_NO__DO_IRQ to disable it.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-05-21 15:44:20 +10:00
Michael Ellerman f11f76d4b8 powerpc/powermac: Use generic_handle_irq() in gatwick_action()
Don't call __do_IRQ() directly in gatwick_action(), use
generic_handle_irq().

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-05-21 15:44:20 +10:00
Michael Ellerman 835363e67d powerpc/irq: Remove fallback to __do_IRQ()
We should no longer have any irq code that needs __do_IRQ(), so
remove the fallback to __do_IRQ().

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-05-21 15:44:20 +10:00
Michael Ellerman 9b647a30cb powerpc/irq: Move get_irq() comment into header
The guts of do_IRQ() isn't really the right place to be documenting
the ppc_md.get_irq() interface. So move the comment into machdep.h

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-05-21 15:43:59 +10:00
Michael Ellerman d7cb10d6d2 powerpc/irq: Move stack overflow check into a separate function
Makes do_IRQ() shorter and clearer.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-05-21 15:43:58 +10:00
Michael Ellerman f2694ba568 powerpc/irq: Move #ifdef'ed body of do_IRQ() into a separate function
Rather than a giant ifdef in the body of do_IRQ(), including a
dangling else, move the irq stack logic into a separate routine and
do the ifdef there.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-05-21 15:43:58 +10:00
Geoff Levand fb94fc2b89 powerpc/ps3: Use smp_request_message_ipi
ps3 has 4 ipis per cpu and can use the new smp_request_message_ipi to
reduce path length when receiving an ipi.

This has the side effect of setting IRQF_PERCPU.

Signed-off-by: Milton Miller <miltonm@bga.com>
Acked-by: Geoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-05-21 15:43:58 +10:00
Robert Jennings 14f966e794 powerpc/pseries: CMO unused page hinting
Adds support for the "unused" page hint which can be used in shared
memory partitions to flag pages not in use, which will then be stolen
before active pages by the hypervisor when memory needs to be moved to
LPARs in need of additional memory.  Failure to mark pages as 'unused'
makes the LPAR slower to give up unused memory to other partitions.

This adds the kernel parameter 'cmo_free_hint' to disable this
functionality.

Signed-off-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: Robert Jennings <rcj@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-05-21 15:43:58 +10:00
Tony Breeds d69a78d7da powerpc/mpic: Cleanup mpic_find() implementation
mpic_find() was overloaded to do two things, finding the mpic instance
for a given interrupt and returning if it's an IPI. Instead we introduce
mpic_is_ipi() and simplify mpic_find() to just return the mpic instance

Also silences the warning:
arch/powerpc/sysdev/mpic.c: In function 'mpic_irq_set_priority':
arch/powerpc/sysdev/mpic.c:1382: warning: 'is_ipi' may be used uninitialized in this function

Signed-off-by: Tony Breeds <tony@bakeyournoodle.com>
Acked-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-05-21 15:42:56 +10:00
Sean MacLennan 805e324b7f powerpc: Update Warp to use leds-gpio driver
Now that leds-gpio is a proper OF platform driver, the Warp can use
the leds-gpio driver rather than the old out-of-kernel driver.

One side-effect is the leds-gpio driver always turns the leds off
while the old driver left them alone. So we have to set them back to
the correct settings.

Signed-off-by: Sean MacLennan <smaclennan@pikatech.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-05-21 15:42:56 +10:00
Kumar Gala 54c181935d powerpc/fsl: Setup PCI inbound window based on actual amount of memory
Previouslly we just always set the inbound window to 2G.  This was
broken for systems with >2G.  If a system has >=4G we will need
SWIOTLB support to handle that case.

We now allocate PCICSRBAR/PEXCSRBAR right below the lowest PCI outbound
address for MMIO or the 4G boundary (if the lowest PCI address is above
4G).

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2009-05-19 00:50:44 -05:00
Kumar Gala 01af9507ff powerpc/85xx: Add P2020DS board support
The P2020 is a dual e500v2 core based SOC with:
* 3 PCIe controllers
* 2 General purpose DMA controllers
* 2 sRIO controllers
* 3 eTSECS
* USB 2.0
* SDHC
* SPI, I2C, DUART
* enhanced localbus
* and optional Security (P2020E) security w/XOR acceleration

The p2020 DS reference board is pretty similar to the existing MPC85xx
DS boards and has a ULI 1575 connected on one of the PCIe controllers.

Signed-off-by: Ted Peters <Ted.Peters@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2009-05-19 00:50:43 -05:00
Li Yang 186e74b9c5 powerpc/fsl_rio: use LAW address from device tree
Instead of fixed address in old code.

Signed-off-by: Li Yang <leoli@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2009-05-19 00:50:40 -05:00
Kumar Gala fc274a1569 powerpc/fsl_rio: Fix compile warnings
We we build with resource_size_t as a 64-bit quantity we get:

arch/powerpc/sysdev/fsl_rio.c: In function 'fsl_rio_setup':
arch/powerpc/sysdev/fsl_rio.c:1029: warning: format '%08x' expects type 'unsigned int', but argument 4 has type 'resource_size_t'
arch/powerpc/sysdev/fsl_rio.c:1029: warning: format '%08x' expects type 'unsigned int', but argument 5 has type 'resource_size_t'

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2009-05-19 00:50:39 -05:00
Kumar Gala 558ab30890 powerpc/8xxx: Update PCI outbound window addresses for 36-bit configs
In these configuration we expect to have large amounts of memory (> 4G)
and thus will bounce via swiotlb some region of PCI address space.

The outbound windows were wasting 512M of address space by leaving a
gap between the top of the outbound window and the 4G boundary.  By
moving the top of the outbound window up to the 4G boundary we can
reclaim the vast majority of the 512M (minus space needed for PEXCSRBAR)
and thus reduces the amount of memory we have to bounce.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2009-05-19 00:50:38 -05:00
Kumar Gala 3da34aae03 powerpc/fsl: Support unique MSI addresses per PCIe Root Complex
Its feasible based on how the PCI address map is setup that the region
of PCI address space used for MSIs differs for each PHB on the same SoC.

Instead of assuming that the address mappes to CCSRBAR 1:1 we read
PEXCSRBAR (BAR0) for the PHB that the given pci_dev is on.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2009-05-19 00:50:38 -05:00
Kumar Gala 12ac426f88 powerpc/85xx: Add MSI nodes for MPC8568/9 MDS systems
The MPC8568/9 chips support MSIs on PCIe so no reason not to enable them.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2009-05-19 00:50:37 -05:00
Anton Vorontsov bd78c33a09 powerpc/85xx: Add STMicro M25P40 serial flash support for MPC8569E-MDS
For serial flash support we need to:

- Add QE Par IO Bank E device tree node, a GPIO from this bank is
  used for SPI chip-select line;
- Add serial-flash node;
- Add proper module alias into of/base.c.

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2009-05-19 00:50:35 -05:00
Anton Vorontsov 5e8306fe5d powerpc/85xx: Enable Serial RapidIO for MPC85xx MDS boards
Select HAS_RAPIDIO symbol and add rio nodes for MPC8568E-MDS
and MPC8569E-MDS boards.

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2009-05-19 00:50:34 -05:00
Anton Vorontsov 28da456a48 powerpc/85xx: Add eSDHC support for MPC8569E-MDS boards
Note that eSDHC and DUART0 are mutually exclusive on MPC8569E-MDS
boards. Default option is DUART0, so eSDHC is disabled by default.
U-Boot will fixup device tree if eSDHC should be used instead of
DUART0.

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2009-05-19 00:50:33 -05:00
Anton Vorontsov ea38f579d5 powerpc/85xx: Fix reg & interrupts for mpc8569emds localbus added NAND
This patch fixes bogus reg = <> property in the localbus node,
and fixes interrupt property (should be "interrupts").

Also add node for NAND support.

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2009-05-19 00:50:32 -05:00
Anton Vorontsov cd7e4a2cbb powerpc/85xx: Fix mpc8569emds crypto node to include SNOW unit
fsl,exec-units-mask should be 0xbfe to include SNOW unit in
MPC8569E's security engine.

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2009-05-19 00:50:31 -05:00
Anton Vorontsov bfa568d19a powerpc/85xx: Add PCI IDs for MPC8569 family processors
This patch adds PCI IDs for MPC8569 and MPC8569E processors,
plus adds appropriate quirks for these IDs, and thus makes
PCI-E actually work on MPC8569E-MDS boards.

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2009-05-19 00:50:30 -05:00
Kumar Gala b1b6802586 powerpc/fsl: Removed reg property from 85xx/86xx soc node
Between the addition of the ecm/mcm law nodes and the fact that the
get_immrbase() has been using the range property of the SoC to determine
the base address of CCSR space we no longer need the reg property at
the soc node level.  It has been ill specified and varied between device
trees to cover either the {e,m}cm-law node, some odd subset of CCSR
space or all of CCSR space.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2009-05-19 00:50:29 -05:00
Haiying Wang 01b14a906b powerpc/qe: add new qe properties for QE based chips
Add fsl,qe-num-riscs and fsl,qe-num-snums to all the devices trees which
have qe node.

Signed-off-by: Haiying Wang <Haiying.Wang@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2009-05-19 00:50:28 -05:00