Implement an interval tree as a replacement for the VMA prio_tree.  The
algorithms are similar to lib/interval_tree.c; however that code can't be
directly reused as the interval endpoints are not explicitly stored in the
VMA.  So instead, the common algorithm is moved into a template and the
details (node type, how to get interval endpoints from the node, etc) are
filled in using the C preprocessor.

Once the interval tree functions are available, using them as a
replacement to the VMA prio tree is a relatively simple, mechanical job.
Signed-off-by: NMichel Lespinasse <walken@google.com>
Cc: Rik van Riel <riel@redhat.com>
Cc: Hillf Danton <dhillf@gmail.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Introduce HAVE_DEBUG_KMEMLEAK config option and select it in corresponding
architecture Kconfig files.  DEBUG_KMEMLEAK now only depends on
HAVE_DEBUG_KMEMLEAK.
Signed-off-by: NCatalin Marinas <catalin.marinas@arm.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Chris Metcalf <cmetcalf@tilera.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Introduce HAVE_UID16 config option and select it in corresponding
architecture Kconfig files.  UID16 now only depends on HAVE_UID16.
Signed-off-by: NCatalin Marinas <catalin.marinas@arm.com>
Acked-by: NGeert Uytterhoeven <geert@linux-m68k.org>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Mike Frysinger <vapier@gentoo.org>
Cc: Mikael Starvik <starvik@axis.com>
Cc: Jesper Nilsson <jesper.nilsson@axis.com>
Cc: David Howells <dhowells@redhat.com>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jeff Dike <jdike@addtoit.com>
Cc: Richard Weinberger <richard@nod.at>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Signed-off-by: NAndi Kleen <ak@linux.intel.com>
Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

The syscall tracing patch introduces a compile bug in lttng-modules
when the latter calls syscall_get_nr(), similar to the following:

<path-to-linux>/arch/arm/include/asm/syscall.h:21:2: error: implicit declaration of function 'task_thread_info' [-Werror=implicit-function-declaration]

The issue is that we are using task_thread_info() in the
syscall_get_nr() function in asm/syscall.h, but not explicitly
including sched.h from this file, so we can expect this bug might
surface any time that syscall_get_nr() is called.

Explicitly including sched.h solves the problem.

Cc: <stable@vger.kernel.org> [3.5, 3.6]
Signed-off-by: NWade Farnsworth <wade_farnsworth@mentor.com>
Acked-by: NWill Deacon <will.deacon@arm.com>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

Set up empty UAPI Kbuild files to be populated by the header splitter.
Signed-off-by: NDavid Howells <dhowells@redhat.com>
Acked-by: NArnd Bergmann <arnd@arndb.de>
Acked-by: NThomas Gleixner <tglx@linutronix.de>
Acked-by: NPaul E. McKenney <paulmck@linux.vnet.ibm.com>
Acked-by: NDave Jones <davej@redhat.com>

Convert #include "..." to #include <path/...> in kernel system headers.
Signed-off-by: NDavid Howells <dhowells@redhat.com>
Acked-by: NArnd Bergmann <arnd@arndb.de>
Acked-by: NThomas Gleixner <tglx@linutronix.de>
Acked-by: NPaul E. McKenney <paulmck@linux.vnet.ibm.com>
Acked-by: NDave Jones <davej@redhat.com>

Signed-off-by: NHaojian Zhuang <haojian.zhuang@gmail.com>
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>

Signed-off-by: NHiroshi Doyu <hdoyu@nvidia.com>
Signed-off-by: NMarek Szyprowski <m.szyprowski@samsung.com>

Some highbank DMA masters can support coherent (ACP) or non-coherent DMA.
This sets up dma_map_ops for masters which are configured for coherent DMA.
Signed-off-by: NRob Herring <rob.herring@calxeda.com>
Signed-off-by: NMarek Szyprowski <m.szyprowski@samsung.com>

With ixp2xxx removed, there are no platforms that define arch_is_coherent,
so the last occurrences of arch_is_coherent can be removed. Any new
platform with coherent i/o should use coherent dma mapping functions.
Signed-off-by: NRob Herring <rob.herring@calxeda.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: NMarek Szyprowski <m.szyprowski@samsung.com>

Remove arch_is_coherent() from iommu dma ops and implement separate
coherent ops functions.
Signed-off-by: NRob Herring <rob.herring@calxeda.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: NMarek Szyprowski <m.szyprowski@samsung.com>

arch_is_coherent is problematic as it is a global symbol. This
doesn't work for multi-platform kernels or platforms which can support
per device coherent DMA.

This adds arm_coherent_dma_ops to be used for devices which connected
coherently (i.e. to the ACP port on Cortex-A9 or A15). The arm_dma_ops
are modified at boot when arch_is_coherent is true.
Signed-off-by: NRob Herring <rob.herring@calxeda.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: NMarek Szyprowski <m.szyprowski@samsung.com>

With many IOMMU'able devices, console gets noisy.

Tegra30 has a few dozen of IOMMU'able devices.
Signed-off-by: NHiroshi Doyu <hdoyu@nvidia.com>
Signed-off-by: NMarek Szyprowski <m.szyprowski@samsung.com>

Skip unnecessary operations if order == 0. A little bit easier to
read.
Signed-off-by: NHiroshi Doyu <hdoyu@nvidia.com>
Signed-off-by: NMarek Szyprowski <m.szyprowski@samsung.com>

Add a v7 defconfig enabling highbank, socfpga, mvebu, and vexpress
platforms and their drivers. Most other options are left to the default.

The existing individual platform defconfigs are kept for now as they are
a bit different. In some cases, the choices look pretty arbitrary and
just copied from other defconfigs.
Signed-off-by: NRob Herring <rob.herring@calxeda.com>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Andrew Lunn <andrew@lunn.ch>
Cc: Gregory Clement <gregory.clement@free-electrons.com>
Cc: Dinh Nguyen <dinguyen@altera.com>
Cc: Pawel Moll <pawel.moll@arm.com>
Signed-off-by: NOlof Johansson <olof@lixom.net>

mach/include/gpio.h was removed as part of the multiplatform-3.7
update. This patch removes the include from arch-vt8500/vt8500.c
Signed-off-by: NTony Prisk <linux@prisktech.co.nz>
Signed-off-by: NOlof Johansson <olof@lixom.net>

Moving ARCH_MVEBU for multi-platform support caused several breakages in
recently added addr-map and pinctrl support for mvebu. This adds the
necessary selects and include paths to fix the build.
Signed-off-by: NRob Herring <rob.herring@calxeda.com>
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Cc: Gregory CLEMENT <gregory.clement@free-electrons.com>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: NArnd Bergmann <arnd@arndb.de>

The nhk8815 board files uses NAND_NO_READRDY in its platform data, but
this macro is getting removed because it was not being used anywhere.

Without this patch, building nhk8815_defconfig results in:

arch/arm/mach-nomadik/board-nhk8815.c:118:6: error: 'NAND_NO_READRDY' undeclared here (not in a function)
Signed-off-by: NArnd Bergmann <arnd@arndb.de>
Cc: Alessandro Rubini <rubini@unipv.it>
Cc: Linus Walleij <linus.walleij@linaro.org>

arm: Add ARM ERRATA 775420 workaround

Workaround for the 775420 Cortex-A9 (r2p2, r2p6,r2p8,r2p10,r3p0) erratum.
In case a date cache maintenance operation aborts with MMU exception, it
might cause the processor to deadlock. This workaround puts DSB before
executing ISB if an abort may occur on cache maintenance.

Based on work by Kouei Abe and feedback from Catalin Marinas.
Signed-off-by: NKouei Abe <kouei.abe.cp@rms.renesas.com>
[ horms@verge.net.au: Changed to implementation
  suggested by catalin.marinas@arm.com ]
Acked-by: NCatalin Marinas <catalin.marinas@arm.com>
Signed-off-by: NSimon Horman <horms@verge.net.au>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

Also convert logical or to + for register offsets from base
addresses. This fixes a number of warnings currently seen in
linux-next:

warning: passing argument 2 of '__raw_writeb' makes pointer from
interger without cast.
Signed-off-by: NAndrew Lunn <andrew@lunn.ch>
Signed-off-by: NArnd Bergmann <arnd@arndb.de>

In the earlier sweeping changes, the ux500 uncompress.h file was missed
because other problems were hiding this one.

Without this patch, building u8500_defconfig results in:

In file included from arch/arm/boot/compressed/misc.c:33:0:
arch/arm/mach-ux500/include/mach/uncompress.h: In function 'putc':
arch/arm/mach-ux500/include/mach/uncompress.h:32:2: warning: passing argument 1 of '__raw_readb' makes pointer from integer without a cast [enabled by default]
arch/arm/include/asm/io.h:95:89: note: expected 'const volatile void *' but argument is of type 'u32'
Signed-off-by: NArnd Bergmann <arnd@arndb.de>
Cc: Linus Walleij <linus.walleij@linaro.org>

While we fixed up all instances that were already present in v3.6,
this one came in through new code.

Without this patch, building kzm9g_defconfig results in:

arch/arm/mach-shmobile/board-kzm9g.c: In function 'kzm9g_restart':
arch/arm/mach-shmobile/board-kzm9g.c:781:2: warning: passing argument 2 of '__raw_writel' makes pointer from integer without a cast [enabled by default]
Signed-off-by: NArnd Bergmann <arnd@arndb.de>
Cc: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
Cc: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Cc: Tetsuyuki Kobayashi <koba@kmckk.co.jp>
Cc: Simon Horman <horms@verge.net.au>

Remove mach-bcmring as this is no longer maintained or used.
Signed-off-by: NChristian Daudt <csd@broadcom.com>
Reviewed-by: NJiandong Zheng <jdzheng@broadcom.com>
Acked-by: NWill Deacon <will.deacon@arm.com>
Signed-off-by: NArnd Bergmann <arnd@arndb.de>

The current kernel does not fit in the CEIVA ROM. Also, some functional
has already been removed due migrate from 2.6 to 3.0, and it seems that
no one uses this platform. So, remove support for this board and modules
specific only to this board.
Signed-off-by: NAlexander Shiyan <shc_work@mail.ru>

This patch contain some fixes:
- Fixes the address of register PORTE.
- Corrects name for DAIDR0 register.
- Removes unused definition for SYNCIO_CFGLEN.
- Fixes definition SYNCIO_FRMLEN.
Signed-off-by: NAlexander Shiyan <shc_work@mail.ru>

CTS signal can not be used for the port and tied to any logic state.
In this case we have an infinite loop waiting for the signal. For fix
this problem, checking CTS removed, waiting for the signal "busy" was
postponed after the byte write to the port.
Signed-off-by: NAlexander Shiyan <shc_work@mail.ru>

Modern CPUs from CLPS711X-line can operate at frequencies other than 73 MHz.
This patch adds simple clock framework for handling all possible CPU rates.
Signed-off-by: NAlexander Shiyan <shc_work@mail.ru>

Convert eukrea-tlv320 to platform driver.
Signed-off-by: NFabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

This allows /proc/vmallocinfo to show the physical address for
ioremap mappings.
Acked-by: NNicolas Pitre <nico@linaro.org>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

This defines the proper sleep states for all the I2C pins of
the MOP500 DB8500 ASIC setting.
Acked-by: NOlof Johansson <olof@lixom.net>
Signed-off-by: NPatrice Chotard <patrice.chotard@stericsson.com>
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>

This named the sleep mode pin configurations as *slpm* rather
than *sleep* to correspond better with the settings from the
datasheet. It also defines an optional sleep mode for the SPI
controller SPI2.
Acked-by: NArnd Bergmann <arnd@arndb.de>
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>

Some Orion5x devices allocate their coherent buffers from atomic
context. Increase size of atomic coherent pool to make sure such the
allocations won't fail during boot.
Signed-off-by: NAndrew Lunn <andrew@lunn.ch>
Acked-by: NJason Cooper <jason@lakedaemon.net>
Signed-off-by: NOlof Johansson <olof@lixom.net>

Ensure that the memory regions that are set within the segments
correspond to physical contiguous memory regions.
Reviewed-by: NSimon Horman <horms@verge.net.au>
Reviewed-by: NWill Deacon <will.deacon@arm.com>
Signed-off-by: NMatthew Leach <matthew.leach@arm.com>
Signed-off-by: NWill Deacon <will.deacon@arm.com>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

This patch allows a dtb to be passed to a new kernel using the kexec
mechinism.

When loading segments from userspace, scan each segment's first four
bytes for the dtb magic. If this is found set the kexec_boot_atags
parameter to the relocate_kernel code to the phyical address of this
segment.
Reviewed-by: NSimon Horman <horms@verge.net.au>
Reviewed-by: NWill Deacon <will.deacon@arm.com>
Signed-off-by: NMatthew Leach <matthew.leach@arm.com>
Signed-off-by: NWill Deacon <will.deacon@arm.com>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

The current timer-based delay loop relies on the architected timer to
initiate the switch away from the polling-based implementation. This is
unfortunate for platforms without the architected timers but with a
suitable delay source (that is, constant frequency, always powered-up
and ticking as long as the CPUs are online).

This patch introduces a registration mechanism for the delay timer
(which provides an unconditional read_current_timer implementation) and
updates the architected timer code to use the new interface.
Reviewed-by: NStephen Boyd <sboyd@codeaurora.org>
Signed-off-by: NJonathan Austin <jonathan.austin@arm.com>
Signed-off-by: NWill Deacon <will.deacon@arm.com>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

Add device nodes for the four instances of dw_mmc controllers in
EXYNOS5250 and enable instance 0 and 2 for the SMDK5250 board.
Signed-off-by: NThomas Abraham <thomas.abraham@linaro.org>
Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>

Add entries if MSHC controllers in AUXDATA table for correct
device name initialization.
Signed-off-by: NAbhilash Kesavan <a.kesavan@samsung.com>
Signed-off-by: NThomas Abraham <thomas.abraham@linaro.org>
Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>

Add clock instances for bic("bus interface unit clock") and ciu("card
interface unit clock") of the all four MSHC controller instances.
Signed-off-by: NAbhilash Kesavan <a.kesavan@samsung.com>
Signed-off-by: NThomas Abraham <thomas.abraham@linaro.org>
Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>

This patch adds the missing gpi28 to the supported GPIOs in the GPI P3 "chip".
Signed-off-by: NRoland Stigge <stigge@antcom.de>