Commit Graph

53352 Commits

Author SHA1 Message Date
Linus Torvalds 021db8e2bd Merge branch 'next-spi' of git://git.secretlab.ca/git/linux-2.6
* 'next-spi' of git://git.secretlab.ca/git/linux-2.6: (77 commits)
  spi/omap: Fix DMA API usage in OMAP MCSPI driver
  spi/imx: correct the test on platform_get_irq() return value
  spi/topcliff: Typo fix threhold to threshold
  spi/dw_spi Typo change diable to disable.
  spi/fsl_espi: change the read behaviour of the SPIRF
  spi/mpc52xx-psc-spi: move probe/remove to proper sections
  spi/dw_spi: add DMA support
  spi/dw_spi: change to EXPORT_SYMBOL_GPL for exported APIs
  spi/dw_spi: Fix too short timeout in spi polling loop
  spi/pl022: convert running variable
  spi/pl022: convert busy flag to a bool
  spi/pl022: pass the returned sglen to the DMA engine
  spi/pl022: map the buffers on the DMA engine
  spi/topcliff_pch: Fix data transfer issue
  spi/imx: remove autodetection
  spi/pxa2xx: pass of_node to spi device and set a parent device
  spi/pxa2xx: Modify RX-Tresh instead of busy-loop for the remaining RX bytes.
  spi/pxa2xx: Add chipselect support for Sodaville
  spi/pxa2xx: Consider CE4100's FIFO depth
  spi/pxa2xx: Add CE4100 support
  ...
2011-01-07 17:08:46 -08:00
Linus Torvalds 72eb6a7914 Merge branch 'for-2.6.38' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu
* 'for-2.6.38' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu: (30 commits)
  gameport: use this_cpu_read instead of lookup
  x86: udelay: Use this_cpu_read to avoid address calculation
  x86: Use this_cpu_inc_return for nmi counter
  x86: Replace uses of current_cpu_data with this_cpu ops
  x86: Use this_cpu_ops to optimize code
  vmstat: User per cpu atomics to avoid interrupt disable / enable
  irq_work: Use per cpu atomics instead of regular atomics
  cpuops: Use cmpxchg for xchg to avoid lock semantics
  x86: this_cpu_cmpxchg and this_cpu_xchg operations
  percpu: Generic this_cpu_cmpxchg() and this_cpu_xchg support
  percpu,x86: relocate this_cpu_add_return() and friends
  connector: Use this_cpu operations
  xen: Use this_cpu_inc_return
  taskstats: Use this_cpu_ops
  random: Use this_cpu_inc_return
  fs: Use this_cpu_inc_return in buffer.c
  highmem: Use this_cpu_xx_return() operations
  vmstat: Use this_cpu_inc_return for vm statistics
  x86: Support for this_cpu_add, sub, dec, inc_return
  percpu: Generic support for this_cpu_add, sub, dec, inc_return
  ...

Fixed up conflicts: in arch/x86/kernel/{apic/nmi.c, apic/x2apic_uv_x.c, process.c}
as per Tejun.
2011-01-07 17:02:58 -08:00
Linus Torvalds 23d69b09b7 Merge branch 'for-2.6.38' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq
* 'for-2.6.38' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq: (33 commits)
  usb: don't use flush_scheduled_work()
  speedtch: don't abuse struct delayed_work
  media/video: don't use flush_scheduled_work()
  media/video: explicitly flush request_module work
  ioc4: use static work_struct for ioc4_load_modules()
  init: don't call flush_scheduled_work() from do_initcalls()
  s390: don't use flush_scheduled_work()
  rtc: don't use flush_scheduled_work()
  mmc: update workqueue usages
  mfd: update workqueue usages
  dvb: don't use flush_scheduled_work()
  leds-wm8350: don't use flush_scheduled_work()
  mISDN: don't use flush_scheduled_work()
  macintosh/ams: don't use flush_scheduled_work()
  vmwgfx: don't use flush_scheduled_work()
  tpm: don't use flush_scheduled_work()
  sonypi: don't use flush_scheduled_work()
  hvsi: don't use flush_scheduled_work()
  xen: don't use flush_scheduled_work()
  gdrom: don't use flush_scheduled_work()
  ...

Fixed up trivial conflict in drivers/media/video/bt8xx/bttv-input.c
as per Tejun.
2011-01-07 16:58:04 -08:00
Linus Torvalds d004e4d332 Merge branch 'x86-apic-cleanups-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-apic-cleanups-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  x86: apic: Cleanup and simplify setup_local_APIC()
  x86: Further simplify mp_irq info handling
  x86: Unify 3 similar ways of saving mp_irqs info
  x86, ioapic: Avoid writing io_apic id if already correct
  x86, x2apic: Don't map lapic addr for preenabled x2apic systems
  x86, sfi: Use register_lapic_address()
  x86, apic: Use register_lapic_address() in init_apic_mapping()
  x86, apic: Remove early_init_lapic_mapping()
  x86, apic: Unify identical register_lapic_address() functions
2011-01-07 14:55:31 -08:00
Linus Torvalds fb5131e188 Merge branch 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6
* 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6: (65 commits)
  [S390] prevent unneccesary loops_per_jiffy recalculation
  [S390] cpuinfo: use get_online_cpus() instead of preempt_disable()
  [S390] smp: remove cpu hotplug messages
  [S390] mutex: enable spinning mutex on s390
  [S390] mutex: Introduce arch_mutex_cpu_relax()
  [S390] cio: fix ccwgroup unregistration race condition
  [S390] perf: add DWARF register lookup for s390
  [S390] cleanup ftrace backend functions
  [S390] ptrace cleanup
  [S390] smp/idle: call init_idle() before starting a new cpu
  [S390] smp: delay idle task creation
  [S390] dasd: Correct retry counter for terminated I/O.
  [S390] dasd: Add support for raw ECKD access.
  [S390] dasd: Prevent deadlock during suspend/resume.
  [S390] dasd: Improve handling of stolen DASD reservation
  [S390] dasd: do path verification for paths added at runtime
  [S390] dasd: add High Performance FICON multitrack support
  [S390] cio: reduce memory consumption of itcw structures
  [S390] nmi: enable machine checks early
  [S390] qeth: buffer count imbalance
  ...
2011-01-07 14:50:50 -08:00
Linus Torvalds d074b104ce Merge branch 'rmobile-latest' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6
* 'rmobile-latest' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6: (67 commits)
  ARM: mach-shmobile: update for SMP changes.
  ARM: mach-shmobile: update for GIC changes.
  ARM: mach-shmobile: Fix up clkdev fallout for SH73A0.
  dma: shdma: don't register the global die notifier multiple times
  ARM: mach-shmobile: Rely on run-time IRQ handlers
  ARM: mach-shmobile: Run-time IRQ handler for GIC
  ARM: mach-shmobile: Run-time IRQ handler for INTCA
  ARM: mach-shmobile: Enable CONFIG_MULTI_IRQ_HANDLER
  ARM: mach-shmobile: Use shared GIC entry macros
  ARM: mach-shmobile: mackerel: Add zboot support
  ARM: mach-shmobile: mackerel: Add HDMI sound support
  ARM: mach-shmobile: mackerel: add HDMI video support
  ARM: mach-shmobile: ap4evb: fixup clk_put timing of fsib_clk
  ARM: mach-shmobile: sh73a0: fix div4 table
  ARM: mach-shmobile: ap4/mackerel: modify wrong comment out of USB
  ARM: mach-shmobile: Mackerel VGA camera support
  mmc: sh_mmcif: make DMA support by the driver unconditional
  ARM: mach-shmobile: Add eMMC support through MMCIF on AG5EVM
  ARM: mach-shmobile: Use pullups for AG5EVM KEYSC pins
  ARM: mach-shmobile: sh73a0 GPIO pullup improvement
  ...
2011-01-07 14:50:14 -08:00
Linus Torvalds 31b6ca0af7 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (58 commits)
  Input: wacom_w8001 - support pen or touch only devices
  Input: wacom_w8001 - use __set_bit to set keybits
  Input: bu21013_ts - fix misuse of logical operation in place of bitop
  Input: i8042 - add Acer Aspire 5100 to the Dritek list
  Input: wacom - add support for digitizer in Lenovo W700
  Input: psmouse - disable the synaptics extension on OLPC machines
  Input: psmouse - fix up Synaptics comment
  Input: synaptics - ignore bogus mt packet
  Input: synaptics - add multi-finger and semi-mt support
  Input: synaptics - report clickpad property
  input: mt: Document interface updates
  Input: fix double equality sign in uevent
  Input: introduce device properties
  hid: egalax: Add support for Wetab (726b)
  Input: include MT library as source for kerneldoc
  MAINTAINERS: Update input-mt entry
  hid: egalax: Add support for Samsung NB30 netbook
  hid: egalax: Document the new devices in Kconfig
  hid: egalax: Add support for Wetab
  hid: egalax: Convert to MT slots
  ...

Fixed up trivial conflict in drivers/input/keyboard/Kconfig
2011-01-07 14:45:47 -08:00
Linus Torvalds 56b85f32d5 Merge branch 'tty-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty-2.6
* 'tty-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty-2.6: (36 commits)
  serial: apbuart: Fixup apbuart_console_init()
  TTY: Add tty ioctl to figure device node of the system console.
  tty: add 'active' sysfs attribute to tty0 and console device
  drivers: serial: apbuart: Handle OF failures gracefully
  Serial: Avoid unbalanced IRQ wake disable during resume
  tty: fix typos/errors in tty_driver.h comments
  pch_uart : fix warnings for 64bit compile
  8250: fix uninitialized FIFOs
  ip2: fix compiler warning on ip2main_pci_tbl
  specialix: fix compiler warning on specialix_pci_tbl
  rocket: fix compiler warning on rocket_pci_ids
  8250: add a UPIO_DWAPB32 for 32 bit accesses
  8250: use container_of() instead of casting
  serial: omap-serial: Add support for kernel debugger
  serial: fix pch_uart kconfig & build
  drivers: char: hvc: add arm JTAG DCC console support
  RS485 documentation: add 16C950 UART description
  serial: ifx6x60: fix memory leak
  serial: ifx6x60: free IRQ on error
  Serial: EG20T: add PCH_UART driver
  ...

Fixed up conflicts in drivers/serial/apbuart.c with evil merge that
makes the code look fairly sane (unlike either side).
2011-01-07 14:39:20 -08:00
Linus Torvalds 3e5b08cbbf Merge branch 'usb-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6
* 'usb-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6: (144 commits)
  USB: add support for Dream Cheeky DL100B Webmail Notifier (1d34:0004)
  USB: serial: ftdi_sio: add support for TIOCSERGETLSR
  USB: ehci-mxc: Setup portsc register prior to accessing OTG viewport
  USB: atmel_usba_udc: fix freeing irq in usba_udc_remove()
  usb: ehci-omap: fix tll channel enable mask
  usb: ohci-omap3: fix trivial typo
  USB: gadget: ci13xxx: don't assume that PAGE_SIZE is 4096
  USB: gadget: ci13xxx: fix complete() callback for no_interrupt rq's
  USB: gadget: update ci13xxx to work with g_ether
  USB: gadgets: ci13xxx: fix probing of compiled-in gadget drivers
  Revert "USB: musb: pm: don't rely fully on clock support"
  Revert "USB: musb: blackfin: pm: make it work"
  USB: uas: Use GFP_NOIO instead of GFP_KERNEL in I/O submission path
  USB: uas: Ensure we only bind to a UAS interface
  USB: uas: Rename sense pipe and sense urb to status pipe and status urb
  USB: uas: Use kzalloc instead of kmalloc
  USB: uas: Fix up the Sense IU
  usb: musb: core: kill unneeded #include's
  DA8xx: assign name to MUSB IRQ resource
  usb: gadget: g_ncm added
  ...

Manually fix up trivial conflicts in USB Kconfig changes in:
	arch/arm/mach-omap2/Kconfig
	arch/sh/Kconfig
	drivers/usb/Kconfig
	drivers/usb/host/ehci-hcd.c
and annoying chip clock data conflicts in:
	arch/arm/mach-omap2/clock3xxx_data.c
	arch/arm/mach-omap2/clock44xx_data.c
2011-01-07 13:16:28 -08:00
Linus Torvalds b4a45f5fe8 Merge branch 'vfs-scale-working' of git://git.kernel.org/pub/scm/linux/kernel/git/npiggin/linux-npiggin
* 'vfs-scale-working' of git://git.kernel.org/pub/scm/linux/kernel/git/npiggin/linux-npiggin: (57 commits)
  fs: scale mntget/mntput
  fs: rename vfsmount counter helpers
  fs: implement faster dentry memcmp
  fs: prefetch inode data in dcache lookup
  fs: improve scalability of pseudo filesystems
  fs: dcache per-inode inode alias locking
  fs: dcache per-bucket dcache hash locking
  bit_spinlock: add required includes
  kernel: add bl_list
  xfs: provide simple rcu-walk ACL implementation
  btrfs: provide simple rcu-walk ACL implementation
  ext2,3,4: provide simple rcu-walk ACL implementation
  fs: provide simple rcu-walk generic_check_acl implementation
  fs: provide rcu-walk aware permission i_ops
  fs: rcu-walk aware d_revalidate method
  fs: cache optimise dentry and inode for rcu-walk
  fs: dcache reduce branches in lookup path
  fs: dcache remove d_mounted
  fs: fs_struct use seqlock
  fs: rcu-walk for path lookup
  ...
2011-01-07 08:56:33 -08:00
Ingo Molnar 1c2a48cf65 Merge branch 'linus' into x86/apic-cleanups
Conflicts:
	arch/x86/include/asm/io_apic.h

Merge reason: Resolve the conflict, update to a more recent -rc base

Signed-off-by: Ingo Molnar <mingo@elte.hu>
2011-01-07 14:14:15 +01:00
Nick Piggin b3e19d924b fs: scale mntget/mntput
The problem that this patch aims to fix is vfsmount refcounting scalability.
We need to take a reference on the vfsmount for every successful path lookup,
which often go to the same mount point.

The fundamental difficulty is that a "simple" reference count can never be made
scalable, because any time a reference is dropped, we must check whether that
was the last reference. To do that requires communication with all other CPUs
that may have taken a reference count.

We can make refcounts more scalable in a couple of ways, involving keeping
distributed counters, and checking for the global-zero condition less
frequently.

- check the global sum once every interval (this will delay zero detection
  for some interval, so it's probably a showstopper for vfsmounts).

- keep a local count and only taking the global sum when local reaches 0 (this
  is difficult for vfsmounts, because we can't hold preempt off for the life of
  a reference, so a counter would need to be per-thread or tied strongly to a
  particular CPU which requires more locking).

- keep a local difference of increments and decrements, which allows us to sum
  the total difference and hence find the refcount when summing all CPUs. Then,
  keep a single integer "long" refcount for slow and long lasting references,
  and only take the global sum of local counters when the long refcount is 0.

This last scheme is what I implemented here. Attached mounts and process root
and working directory references are "long" references, and everything else is
a short reference.

This allows scalable vfsmount references during path walking over mounted
subtrees and unattached (lazy umounted) mounts with processes still running
in them.

This results in one fewer atomic op in the fastpath: mntget is now just a
per-CPU inc, rather than an atomic inc; and mntput just requires a spinlock
and non-atomic decrement in the common case. However code is otherwise bigger
and heavier, so single threaded performance is basically a wash.

Signed-off-by: Nick Piggin <npiggin@kernel.dk>
2011-01-07 17:50:33 +11:00
Nick Piggin fb045adb99 fs: dcache reduce branches in lookup path
Reduce some branches and memory accesses in dcache lookup by adding dentry
flags to indicate common d_ops are set, rather than having to check them.
This saves a pointer memory access (dentry->d_op) in common path lookup
situations, and saves another pointer load and branch in cases where we
have d_op but not the particular operation.

Patched with:

git grep -E '[.>]([[:space:]])*d_op([[:space:]])*=' | xargs sed -e 's/\([^\t ]*\)->d_op = \(.*\);/d_set_d_op(\1, \2);/' -e 's/\([^\t ]*\)\.d_op = \(.*\);/d_set_d_op(\&\1, \2);/' -i

Signed-off-by: Nick Piggin <npiggin@kernel.dk>
2011-01-07 17:50:28 +11:00
Nick Piggin fa0d7e3de6 fs: icache RCU free inodes
RCU free the struct inode. This will allow:

- Subsequent store-free path walking patch. The inode must be consulted for
  permissions when walking, so an RCU inode reference is a must.
- sb_inode_list_lock to be moved inside i_lock because sb list walkers who want
  to take i_lock no longer need to take sb_inode_list_lock to walk the list in
  the first place. This will simplify and optimize locking.
- Could remove some nested trylock loops in dcache code
- Could potentially simplify things a bit in VM land. Do not need to take the
  page lock to follow page->mapping.

The downsides of this is the performance cost of using RCU. In a simple
creat/unlink microbenchmark, performance drops by about 10% due to inability to
reuse cache-hot slab objects. As iterations increase and RCU freeing starts
kicking over, this increases to about 20%.

In cases where inode lifetimes are longer (ie. many inodes may be allocated
during the average life span of a single inode), a lot of this cache reuse is
not applicable, so the regression caused by this patch is smaller.

The cache-hot regression could largely be avoided by using SLAB_DESTROY_BY_RCU,
however this adds some complexity to list walking and store-free path walking,
so I prefer to implement this at a later date, if it is shown to be a win in
real situations. I haven't found a regression in any non-micro benchmark so I
doubt it will be a problem.

Signed-off-by: Nick Piggin <npiggin@kernel.dk>
2011-01-07 17:50:26 +11:00
Nick Piggin dc0474be3e fs: dcache rationalise dget variants
dget_locked was a shortcut to avoid the lazy lru manipulation when we already
held dcache_lock (lru manipulation was relatively cheap at that point).
However, how that the lru lock is an innermost one, we never hold it at any
caller, so the lock cost can now be avoided. We already have well working lazy
dcache LRU, so it should be fine to defer LRU manipulations to scan time.

Signed-off-by: Nick Piggin <npiggin@kernel.dk>
2011-01-07 17:50:24 +11:00
Nick Piggin b5c84bf6f6 fs: dcache remove dcache_lock
dcache_lock no longer protects anything. remove it.

Signed-off-by: Nick Piggin <npiggin@kernel.dk>
2011-01-07 17:50:23 +11:00
Nick Piggin da5029563a fs: dcache scale d_unhashed
Protect d_unhashed(dentry) condition with d_lock. This means keeping
DCACHE_UNHASHED bit in synch with hash manipulations.

Signed-off-by: Nick Piggin <npiggin@kernel.dk>
2011-01-07 17:50:21 +11:00
Nick Piggin b7ab39f631 fs: dcache scale dentry refcount
Make d_count non-atomic and protect it with d_lock. This allows us to ensure a
0 refcount dentry remains 0 without dcache_lock. It is also fairly natural when
we start protecting many other dentry members with d_lock.

Signed-off-by: Nick Piggin <npiggin@kernel.dk>
2011-01-07 17:50:21 +11:00
Nick Piggin fe15ce446b fs: change d_delete semantics
Change d_delete from a dentry deletion notification to a dentry caching
advise, more like ->drop_inode. Require it to be constant and idempotent,
and not take d_lock. This is how all existing filesystems use the callback
anyway.

This makes fine grained dentry locking of dput and dentry lru scanning
much simpler.

Signed-off-by: Nick Piggin <npiggin@kernel.dk>
2011-01-07 17:50:18 +11:00
Linus Torvalds 01539ba2a7 Merge branch 'omap-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6
* 'omap-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6: (243 commits)
  omap2: Make OMAP2PLUS select OMAP_DM_TIMER
  OMAP4: hwmod data: Fix alignment and end of line in structurefields
  OMAP4: hwmod data: Move the DMA structures
  OMAP4: hwmod data: Move the smartreflex structures
  OMAP4: hwmod data: Fix missing SIDLE_SMART_WKUP in smartreflexsysc
  arm: omap: tusb6010: add name for MUSB IRQ
  arm: omap: craneboard: Add USB EHCI support
  omap2+: Initialize serial port for dynamic remuxing for n8x0
  omap2+: Add struct omap_board_data and use it for platform level serial init
  omap2+: Allow hwmod state changes to mux pads based on the state changes
  omap2+: Add support for hwmod specific muxing of devices
  omap2+: Add omap_mux_get_by_name
  OMAP2: PM: fix compile error when !CONFIG_SUSPEND
  MAINTAINERS: OMAP: hwmod: update hwmod code, data maintainership
  OMAP4: Smartreflex framework extensions
  OMAP4: hwmod: Add inital data for smartreflex modules.
  OMAP4: PM: Program correct init voltages for scalable VDDs
  OMAP4: Adding voltage driver support
  OMAP4: Register voltage PMIC parameters with the voltage layer
  OMAP3: PM: Program correct init voltages for VDD1 and VDD2
  ...

Fix up trivial conflict in arch/arm/plat-omap/Kconfig
2011-01-06 19:13:58 -08:00
Paul Mundt c413521eb4 ARM: mach-shmobile: update for SMP changes.
There have likewise been some API updates, so we refactor to use the
consolidated smp_prepare_cpus().

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-01-07 12:03:22 +09:00
Paul Mundt c0312b33da ARM: mach-shmobile: update for GIC changes.
This fixes up the SMP support to use the refactored GIC APIs.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-01-07 12:02:11 +09:00
Paul Mundt 6ef9f6fd8e ARM: mach-shmobile: Fix up clkdev fallout for SH73A0.
Use the new linux/clkdev.h to get it building again.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-01-07 11:49:49 +09:00
Paul Mundt e9d728f528 Merge branch 'rmobile/smp' into rmobile-latest
Conflicts:
	arch/arm/Kconfig
	arch/arm/mach-shmobile/include/mach/entry-macro-intc.S

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-01-07 10:51:35 +09:00
Magnus Damm 018a3fc7e3 ARM: mach-shmobile: Rely on run-time IRQ handlers
Remove now unused IRQ demux code. All R-Mobile and
SH-Mobile processors should register IRQ demux
handlers during run-time.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-01-07 10:43:02 +09:00
Magnus Damm e74a9625f8 ARM: mach-shmobile: Run-time IRQ handler for GIC
Break-out GIC specific IRQ demux code from the file
entry-macro-intc.S and register during run-time.

Covers sh73a0.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-01-07 10:42:56 +09:00
Magnus Damm 863b171952 ARM: mach-shmobile: Run-time IRQ handler for INTCA
Break-out INTC specific IRQ demux code from the file
entry-macro-intc.S and register during run-time.

Covers sh7367, sh7377 and sh7372.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-01-07 10:42:50 +09:00
Magnus Damm 60f1435c3b ARM: mach-shmobile: Enable CONFIG_MULTI_IRQ_HANDLER
Always enable MULTI_IRQ_HANDLER on SH-Mobile.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-01-07 10:42:44 +09:00
Magnus Damm 3dff8804fc ARM: mach-shmobile: Use shared GIC entry macros
Use the GIC demux code in asm/hardware/entry-macro-gic.S
on the R-Mobile / SH-Mobile processors.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-01-07 10:40:01 +09:00
Simon Horman eb6908a279 ARM: mach-shmobile: mackerel: Add zboot support
When CONFIG_ZBOOT_ROM is selected, the resulting zImage file will be small
boot loader and may be burned to rom or flash.

Cc: Magnus Damm <magnus.damm@gmail.com>
Cc: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Simon Horman <horms@verge.net.au>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-01-07 10:36:28 +09:00
Paul Mundt 5e93c6b4ec Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6 into rmobile-latest
Conflicts:
	arch/arm/mach-shmobile/Kconfig

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-01-07 10:29:26 +09:00
Linus Torvalds 3c0cb7c31c Merge branch 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm
* 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm: (416 commits)
  ARM: DMA: add support for DMA debugging
  ARM: PL011: add DMA burst threshold support for ST variants
  ARM: PL011: Add support for transmit DMA
  ARM: PL011: Ensure IRQs are disabled in UART interrupt handler
  ARM: PL011: Separate hardware FIFO size from TTY FIFO size
  ARM: PL011: Allow better handling of vendor data
  ARM: PL011: Ensure error flags are clear at startup
  ARM: PL011: include revision number in boot-time port printk
  ARM: vexpress: add sched_clock() for Versatile Express
  ARM i.MX53: Make MX53 EVK bootable
  ARM i.MX53: Some bug fix about MX53 MSL code
  ARM: 6607/1: sa1100: Update platform device registration
  ARM: 6606/1: sa1100: Fix platform device registration
  ARM i.MX51: rename IPU irqs
  ARM i.MX51: Add ipu clock support
  ARM: imx/mx27_3ds: Add PMIC support
  ARM: DMA: Replace page_to_dma()/dma_to_page() with pfn_to_dma()/dma_to_pfn()
  mx51: fix usb clock support
  MX51: Add support for usb host 2
  arch/arm/plat-mxc/ehci.c: fix errors/typos
  ...
2011-01-06 16:50:35 -08:00
Linus Torvalds f70f5b9dc7 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-next-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-next-2.6: (25 commits)
  atyfb: Fix bootup hangs on sparc64.
  sparc: update copyright in piggyback.c
  sparc: unify strip command in boot/Makefile
  sparc: rename piggyback_32 to piggyback
  sparc: fix tftpboot.img for sparc64 on little-endian host
  sparc: add $BITS to piggyback arguments
  sparc: remove obsolete ELF support in piggyback_32.c
  sparc: additional comments to piggyback_32.c
  sparc: use _start for the start entry (like 64 bit does)
  sparc: use trapbase in setup_arch
  sparc: refactor piggy_32.c
  Added support for ampopts in APBUART driver. Used in AMP systems.
  APBUART: added raw AMBA vendor/device number to match against.
  SPARC/LEON: avoid AMBAPP name duplicates in openprom fs when REG is missing
  SPARC/LEON: added support for selecting Timer Core and Timer within core
  LEON: added raw AMBA vendor/device number to find TIMER, IRQCTRL
  SPARC/LEON: added support for IRQAMP IRQ Controller
  SPARC/LEON: find IRQCTRL and Timer via OF-Tree, instead of hardcoded.
  sparc: fix sparse warnings in arch/sparc/prom for 32 bit build
  sparc: remove unused prom tree functions
  ...
2011-01-06 15:30:54 -08:00
Russell King 404a02cbd2 Merge branch 'devel-stable' into devel
Conflicts:
	arch/arm/mach-pxa/clock.c
	arch/arm/mach-pxa/clock.h
2011-01-06 22:33:32 +00:00
Russell King 28cdac6690 Merge branch 'pgt' (early part) into devel 2011-01-06 22:33:19 +00:00
Russell King 4073723acb Merge branch 'misc' into devel
Conflicts:
	arch/arm/Kconfig
	arch/arm/common/Makefile
	arch/arm/kernel/Makefile
	arch/arm/kernel/smp.c
2011-01-06 22:32:52 +00:00
Russell King 4ec3eb1363 Merge branch 'smp' into misc
Conflicts:
	arch/arm/kernel/entry-armv.S
	arch/arm/mm/ioremap.c
2011-01-06 22:32:03 +00:00
Russell King 24056f5250 ARM: DMA: add support for DMA debugging
Add ARM support for the DMA debug infrastructure, which allows the
DMA API usage to be debugged.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-01-06 22:31:11 +00:00
Linus Torvalds b69fc2efc9 Merge branch 'for-linus' of git://codeaurora.org/quic/kernel/davidb/linux-msm
* 'for-linus' of git://codeaurora.org/quic/kernel/davidb/linux-msm: (35 commits)
  mmc: msm_sdcc: Check for only DATA_END interrupt to end a request
  mmc: msm_sdcc: Fix bug in PIO mode when data size is not word aligned
  mmc: msm_sdcc: Reset SDCC in case of data transfer errors
  mmc: msm_sdcc: Add prog done interrupt support
  mmc: msm_sdcc: Fix possible circular locking dependency warning
  MSM: Add USB support for MSM7x30
  MSM: Add USB suport for QSD8x50
  msm: initial framebuffer support
  msm: add handling for clocks tagged as CLK_MINMAX
  msm: trout: change name of pmdh_clk to mddi_clk
  msm: add CLK_MINMAX to pmdh_clk
  msm: trout: add gpio_to_irq
  msm: iommu: Use the correct memory allocation flag
  msm_serial: Remove redundant unlikely()
  msm: iommu: Miscellaneous code cleanup
  msm: iommu: Support cache-coherent memory access
  msm: iommu: Definitions for extended memory attributes
  msm: iommu: Kconfig dependency for the IOMMU API
  msm: iommu: Check if device is already attached
  msm: iommu: Kconfig item for cacheable page tables
  ...
2011-01-06 13:36:30 -08:00
Linus Torvalds 84b7290cca Merge git://git.kernel.org/pub/scm/linux/kernel/git/lethal/fbdev-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/lethal/fbdev-2.6: (55 commits)
  video: udlfb: Kill off special printk wrappers, use pr_fmt().
  video: udlfb: Kill off some magic constants for EDID sizing.
  video: udlfb: deifdefify (yes, that's a word).
  fbdev: modedb: Add a new mode for 864x480 TAAL panels.
  drivers/video/i810/i810-i2c.c: fix i2c bus handling
  video: Fix the HGA framebuffer driver
  drivers/video/carminefb.c: improve error handling
  video: imxfb: Fix the maximum value for yres
  fbdev: sh_mobile_lcdcfb: Enable 32 bpp and 24 bpp support
  fbdev: sh_mipi_dsi: use platform provided register layout and values
  ARM: mach-shmobile: specify sh7372 MIPI DSI register layout
  fbdev: sh_mipi_dsi: support different register layouts
  ARM: mach-shmobile: improve MIPI DSI clock configuration
  fbdev: sh-mobile: implement MIPI DSI runtime PM support
  sisfb: eliminate compiler warnings
  sisfb: delete unused register I/O macros
  sisfb: replace setSISIDXREG with SiS_SetRegANDOR
  sisfb: replace andSISIDXREG with SiS_SetRegAND
  sisfb: replace orSISIDXREG with SiS_SetRegOR
  sisfb: replace outSISIDXREG with SiS_SetReg
  ...
2011-01-06 13:35:12 -08:00
Linus Torvalds 9858a38ea3 Merge branch 'sh-latest' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6
* 'sh-latest' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6:
  sh: include Migo-R TS driver in Migo-R defconfig
  sh: correct definitions to access stack pointers
  sh: Tidy up SH-4A unaligned load support.
  dma: shdma: NMI support.
  sh: mach-sdk7786: Handle baseboard NMI source selection.
  sh: mach-rsk: Add polled GPIO buttons support for RSK+7203.
  sh: Break out cpuinfo_op procfs bits.
  sh: Enable optional gpiolib for all CPUs with pinmux tables.
  sh: migrate SH_CLK_MD to mode pin API.
  sh: machvec IO death.
2011-01-06 13:34:45 -08:00
Linus Torvalds abb359450f Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6: (1436 commits)
  cassini: Use local-mac-address prom property for Cassini MAC address
  net: remove the duplicate #ifdef __KERNEL__
  net: bridge: check the length of skb after nf_bridge_maybe_copy_header()
  netconsole: clarify stopping message
  netconsole: don't announce stopping if nothing happened
  cnic: Fix the type field in SPQ messages
  netfilter: fix export secctx error handling
  netfilter: fix the race when initializing nf_ct_expect_hash_rnd
  ipv4: IP defragmentation must be ECN aware
  net: r6040: Return proper error for r6040_init_one
  dcb: use after free in dcb_flushapp()
  dcb: unlock on error in dcbnl_ieee_get()
  net: ixp4xx_eth: Return proper error for eth_init_one
  include/linux/if_ether.h: Add #define ETH_P_LINK_CTL for HPNA and wlan local tunnel
  net: add POLLPRI to sock_def_readable()
  af_unix: Avoid socket->sk NULL OOPS in stream connect security hooks.
  net_sched: pfifo_head_drop problem
  mac80211: remove stray extern
  mac80211: implement off-channel TX using hw r-o-c offload
  mac80211: implement hardware offload for remain-on-channel
  ...
2011-01-06 12:30:19 -08:00
Linus Torvalds cb600d2f83 Merge branch 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  x86, mm: Initialize initial_page_table before paravirt jumps
2011-01-06 11:12:17 -08:00
Linus Torvalds 47935a731b Merge branches 'x86-alternatives-for-linus', 'x86-fpu-for-linus', 'x86-hwmon-for-linus', 'x86-paravirt-for-linus', 'core-locking-for-linus' and 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-alternatives-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  x86, suspend: Avoid unnecessary smp alternatives switch during suspend/resume

* 'x86-fpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  x86-64, asm: Use fxsaveq/fxrestorq in more places

* 'x86-hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  x86, hwmon: Add core threshold notification to therm_throt.c

* 'x86-paravirt-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  x86, paravirt: Use native_halt on a halt, not native_safe_halt

* 'core-locking-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  locking, lockdep: Convert sprintf_symbol to %pS

* 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  irq: Better struct irqaction layout
2011-01-06 11:11:50 -08:00
Linus Torvalds 77a0dd54ba Merge branch 'x86-uv-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-uv-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  x86, UV, BAU: Extend for more than 16 cpus per socket
  x86, UV: Fix the effect of extra bits in the hub nodeid register
  x86, UV: Add common uv_early_read_mmr() function for reading MMRs
2011-01-06 11:09:57 -08:00
Linus Torvalds d7a5a18190 Merge branch 'x86-tsc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-tsc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  x86: Check tsc available/disabled in the delayed init function
  x86: Improve TSC calibration using a delayed workqueue
  x86: Make tsc=reliable override boot time stability checks
2011-01-06 11:08:14 -08:00
Linus Torvalds 4f00b901d4 Merge branch 'x86-security-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-security-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  module: Move RO/NX module protection to after ftrace module update
  x86: Resume trampoline must be executable
  x86: Add RO/NX protection for loadable kernel modules
  x86: Add NX protection for kernel data
  x86: Fix improper large page preservation
2011-01-06 11:07:33 -08:00
Linus Torvalds b4c6e2ea5e Merge branch 'x86-platform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-platform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  x86, earlyprintk: Move mrst early console to platform/ and fix a typo
  x86, apbt: Setup affinity for apb timers acting as per-cpu timer
  ce4100: Add errata fixes for UART on CE4100
  x86: platform: Move iris to x86/platform where it belongs
  x86, mrst: Check platform_device_register() return code
  x86/platform: Add Eurobraille/Iris power off support
  x86, mrst: Add explanation for using 1960 as the year offset for vrtc
  x86, mrst: Fix dependencies of "select INTEL_SCU_IPC"
  x86, mrst: The shutdown for MRST requires the SCU IPC mechanism
  x86: Ce4100: Add reboot_fixup() for CE4100
  ce4100: Add PCI register emulation for CE4100
  x86: Add CE4100 platform support
  x86: mrst: Set vRTC's IRQ to level trigger type
  x86: mrst: Add audio driver bindings
  rtc: Add drivers/rtc/rtc-mrst.c
  x86: mrst: Add vrtc driver which serves as a wall clock device
  x86: mrst: Add Moorestown specific reboot/shutdown support
  x86: mrst: Parse SFI timer table for all timer configs
  x86/mrst: Add SFI platform device parsing code
2011-01-06 11:06:31 -08:00
Linus Torvalds 6f46b120a9 Merge branch 'x86-microcode-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-microcode-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  x86, microcode, AMD: Cleanup code a bit
  x86, microcode, AMD: Replace vmalloc+memset with vzalloc
2011-01-06 11:06:09 -08:00
Linus Torvalds 4e1db5e58a Merge branch 'x86-mce-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-mce-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  apic, amd: Make firmware bug messages more meaningful
  mce, amd: Remove goto in threshold_create_device()
  mce, amd: Add helper functions to setup APIC
  mce, amd: Shorten local variables mci_misc_{hi,lo}
  mce, amd: Implement mce_threshold_block_init() helper function
2011-01-06 11:05:21 -08:00