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Michel Lespinasse cleaned up the futex calling conventions in commit
37a9d912b24f ("futex: Sanitize cmpxchg_futex_value_locked API").
But the ia64 implementation was subtly broken. Gcc does not know that
register "r8" will be updated by the fault handler if the cmpxchg
instruction takes an exception. So it feels safe in letting the
initialization of r8 slide to after the cmpxchg. Result: we always
return 0 whether the user address faulted or not.
Fix by moving the initialization of r8 into the __asm__ code so gcc
won't move it.
Reported-by: <emeric.maschino@gmail.com>
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=42757
Tested-by: <emeric.maschino@gmail.com>
Acked-by: Michel Lespinasse <walken@google.com>
Cc: stable@vger.kernel.org # v2.6.39+
Signed-off-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Complete the separation of the twl6040 from the twl core since
it is a separate chip, not part of the twl6030 PMIC.
Make the needed Kconfig changes for the depending drivers at the
same time to avoid breaking the kernel build (vibra, ASoC components).
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Reviewed-by: Mark Brown <broonie@opensource.wolfsonicro.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Acked-by: Dmitry Torokhov <dtor@mail.ru>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
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Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
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Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
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Add clarifications about the SoCs that can be found on an AT91SAM9M10G45-EK
board. Add also the web link to this board on Atmel's website.
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
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Add comment to make it clear that several SoC are supported by
this generic entry.
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
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The AT91SAM9G45 entry covers the whole family so we also add the AT91SAM9M10
name and the "families" qualifier. Then, add a comment to explain which SoCs
are supported by this entry: AT91SAM9G45, AT91SAM9G46 but also
AT91SAM9M10 and AT91SAM9M11.
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
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Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
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You need to setup the dm9000 irq via gpio_to_irq() since
d0fbda9add (ARM: at91/gpio: drop PIN_BASE).
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Cc: stable <stable@vger.kernel.org> [3.2+]
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The flash size is 8MiB.
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
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The real function is long gone and the empty one will generate warnings
when configured without Atmel serial:
arch/arm/mach-at91/at91rm9200_devices.c:1176: warning: 'struct at91_uart_config' declared inside parameter list
arch/arm/mach-at91/at91rm9200_devices.c:1176: warning: its scope is only this definition or declaration, which is probably not what you want
Signed-off-by: Joachim Eastwood <joachim.eastwood@jotron.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
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Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
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at91_matrix_* macro's are used by at91_udc usb gadget driver,
which can be built as module, therefore we need to export the
variable containing matrix base address.
Signed-off-by: Joachim Eastwood <joachim.eastwood@jotron.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
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After commit b55149529d26 (ARM: at91/PMC: make register base soc independent)
building atmel_usba_udc as a module fails with following message
ERROR: "at91_pmc_base" [drivers/usb/gadget/atmel_usba_udc.ko] undefined!
make[1]: *** [__modpost] Error 1
make: *** [modules] Error 2
Export symbol to allow driver to be built as a module again.
Signed-off-by: Joachim Eastwood <joachim.eastwood@jotron.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
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After commit f363c40 (ARM: at91: make sdram/ddr register base soc independent)
building at91_cf as a module fails with:
ERROR: "at91_ramc_base" [drivers/pcmcia/at91_cf.ko] undefined!
make[1]: *** [__modpost] Error 1
make: *** [modules] Error 2
Export at91_ramc_base symbol to allow drivers using at91_ramc_*
functions to be built as modules again.
Signed-off-by: Joachim Eastwood <joachim.eastwood@jotron.com>
[nicolas.ferre@atmel.com: modify slightly commit message]
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
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After commit 5e9cf5e (ARM: at91: make ST (System Timer) soc independent)
building at91rm9200_wdt as a module fails with following message
ERROR: "at91_st_base" [drivers/watchdog/at91rm9200_wdt.ko] undefined!
make[1]: *** [__modpost] Error 1
make: *** [modules] Error 2
Export symbol to allow wdt driver to be built as a module again.
Signed-off-by: Joachim Eastwood <joachim.eastwood@jotron.com>
[nicolas.ferre@atmel.com: use EXPORT_SYMBOL_GPL()]
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
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Rename machine descriptions to match legacy descriptions distributed by
manufacturer BSP. This way distributions can do clean upgrades from
userspace scripts which check for these values to differentiate platforms
with single kernel binaries.
Signed-off-by: Hector Oron <hector.oron@gmail.com>
Acked-by: Matt Sealey <matt@genesi-usa.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Some new drivers and changed Kconfig dependencies for the v3.4
kernel affecting the U8500 defconfig:
- The SOC config options are now brought in by default
- No need to explicitly select misc devices anymore
- I2C is selected by default
- We now have support for charging from the AB8500 so compile
in this
- The regulator framework needs to be explictly selected
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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A recent change to a Kconfig configuration saw MACH_U8500
remove TPS6105X selection. In doing so Kconfig stopped
selecting REGULATORS, which is still required. This patch
sees UX500_SOC_DB8500 explicitly select it instead.
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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This can happen if the instruction is much longer than the maximum length,
or if insn->opnd_bytes is manually changed.
This patch also fixes warnings from -Wswitch-default flag.
Reported-by: Prashanth Nageshappa <prashanth@linux.vnet.ibm.com>
Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com>
Cc: Jim Keniston <jkenisto@linux.vnet.ibm.com>
Cc: Linux-mm <linux-mm@kvack.org>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Arnaldo Carvalho de Melo <acme@infradead.org>
Cc: Anton Arapov <anton@redhat.com>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Cc: yrl.pp-manager.tt@hitachi.com
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20120413032427.32577.42602.stgit@localhost.localdomain
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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The 68EZ328/bootlogo.h is not actually used in the 68EZ328 platform code
at all. It is used by the 68VZ328 platform code though, so move it to be
with the rest of the 68VZ328 platform code.
Commit c0e0c89c089f4bd66dbbd1a44da90abe74fe3f02 ("fix broken boot logo
inclusion") modified the bootlogo code to not be included in asm code.
Modify 68VZ328/bootlogo.h so that the bootlogo bit map is named correctly
for direct use in the C code.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
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The 68EZ328 and 68VZ328 platforms currently try to process their bootlogo.h
to make it clean to include in asm files. This is no longer used, the
bootlogo.h file is now included only in C code, so remove all the processing
code in the 68EZ328 and 68VZ328 Makefiles.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
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Pull ARM fixes from Russell King:
"Nothing too disasterous, the biggest thing being the removal of the
regulator support for vcore in the AMBA driver; only one SoC was using
this and it got broken during the last merge window, which then
started causing problems for other people. Mutual agreement was
reached for it to be removed."
* 'fixes' of git://git.linaro.org/people/rmk/linux-arm:
ARM: 7386/1: jump_label: fixup for rename to static_key
ARM: 7384/1: ThumbEE: Disable userspace TEEHBR access for !CONFIG_ARM_THUMBEE
ARM: 7382/1: mm: truncate memory banks to fit in 4GB space for classic MMU
ARM: 7359/2: smp_twd: Only wait for reprogramming on active cpus
ARM: 7383/1: nommu: populate vectors page from paging_init
ARM: 7381/1: nommu: fix typo in mm/Kconfig
ARM: 7380/1: DT: do not add a zero-sized memory property
ARM: 7379/1: DT: fix atags_to_fdt() second call site
ARM: 7366/3: amba: Remove AMBA level regulator support
ARM: 7377/1: vic: re-read status register before dispatching each IRQ handler
ARM: 7368/1: fault.c: correct how the tsk->[maj|min]_flt gets incremented
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The 'max' range needs to be unsigned, since the size of the user address
space is bigger than 2GB.
We know that 'count' is positive in 'long' (that is checked in the
caller), so we will truncate 'max' down to something that fits in a
signed long, but before we actually do that, that comparison needs to be
done in unsigned.
Bug introduced in commit 92ae03f2ef99 ("x86: merge 32/64-bit versions of
'strncpy_from_user()' and speed it up"). On x86-64 you can't trigger
this, since the user address space is much smaller than 63 bits, and on
x86-32 it works in practice, since you would seldom hit the strncpy
limits anyway.
I had actually tested the corner-cases, I had only tested them on
x86-64. Besides, I had only worried about the case of a pointer *close*
to the end of the address space, rather than really far away from it ;)
This also changes the "we hit the user-specified maximum" to return
'res', for the trivial reason that gcc seems to generate better code
that way. 'res' and 'count' are the same in that case, so it really
doesn't matter which one we return.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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c5905afb0 ("static keys: Introduce 'struct static_key'...") renamed
struct jump_label_key to struct static_key. Fixup ARM for this to
eliminate these build warnings:
include/linux/jump_label.h:113:2:
warning: passing argument 1 of 'arch_static_branch' from incompatible pointer type
include/asm/jump_label.h:17:82:
note: expected 'struct jump_label_key *' but argument is of type 'struct static_key *'
Signed-off-by: Rabin Vincent <rabin@rab.in>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Currently when ThumbEE is not enabled (!CONFIG_ARM_THUMBEE) the ThumbEE
register states are not saved/restored at context switch. The default state
of the ThumbEE Ctrl register (TEECR) allows userspace accesses to the
ThumbEE Base Handler register (TEEHBR). This can cause unexpected behaviour
when people use ThumbEE on !CONFIG_ARM_THUMBEE kernels, as well as allowing
covert communication - eg between userspace tasks running inside chroot
jails.
This patch sets up TEECR in order to prevent user-space access to TEEHBR
when !CONFIG_ARM_THUMBEE. In this case, tasks are sent SIGILL if they try to
access TEEHBR.
Cc: stable@vger.kernel.org
Reviewed-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Jonathan Austin <jonathan.austin@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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If a bank of memory spanning the 4GB boundary is added on a !CONFIG_LPAE
kernel then we will hang early during boot since the memory bank will
have wrapped around to zero.
This patch truncates memory banks for !LPAE configurations when the end
address is not representable in 32 bits.
Acked-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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During booting of cpu1, there is a short window where cpu1
is online, but not active where cpu1 is occupied by waiting
to become active. If cpu0 then decides to schedule something
on cpu1 and wait for it to complete, before cpu0 has set
cpu1 active, we have a deadlock.
Typically it's this CPU frequency transition that happens at
this time, so let's just not wait for it to happen, it will
happen whenever the CPU eventually comes online instead.
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: stable@kernel.org
Signed-off-by: Jonas Aaberg <jonas.aberg@stericsson.com>
Reviewed-by: Rickard Andersson <rickard.andersson@stericsson.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull "ARM: a few more SoC fixes for 3.4-rc" from Olof Johansson:
- A handful of warning and build fixes for Qualcomm MSM
- Build/warning and bug fixes for Samsung Exynos
- A fix from Rob Herring that removes misplaced interrupt-parent
properties from a few device trees
- A fix to OMAP dealing with cpufreq build errors, removing some of the
offending code since it was redundant anyway
* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
ARM: OMAP: clock: cleanup CPUfreq leftovers, fix build errors
ARM: dts: remove blank interrupt-parent properties
ARM: EXYNOS: Fix Kconfig dependencies for device tree enabled machine files
ARM: EXYNOS: Remove broken config values for touchscren for NURI board
ARM: EXYNOS: set fix xusbxti clock for NURI and Universal210 boards
ARM: EXYNOS: fix regulator name for NURI board
ARM: SAMSUNG: make SAMSUNG_PM_DEBUG select DEBUG_LL
ARM: msm: Fix section mismatches in proc_comm.c
video: msm: Fix section mismatches in mddi.c
arm: msm: trout: fix compile failure
arm: msm: halibut: remove unneeded fixup
ARM: EXYNOS: Add PDMA and MDMA physical base address defines
ARM: S5PV210: Fix compiler warning in dma.c file
ARM: EXYNOS: Fix compile error in exynos5250-cpufreq.c
ARM: EXYNOS: Add missing definition for IRQ_I2S0
ARM: S5PV210: fix unused LDO supply field from wm8994_pdata
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* ixp2xxx/removal:
ARM: remove ixp23xx and ixp2000 platforms
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git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into fixes
* 'v3.4-samsung-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung:
ARM: EXYNOS: Fix Kconfig dependencies for device tree enabled machine files
ARM: EXYNOS: Remove broken config values for touchscren for NURI board
ARM: EXYNOS: set fix xusbxti clock for NURI and Universal210 boards
ARM: EXYNOS: fix regulator name for NURI board
ARM: SAMSUNG: make SAMSUNG_PM_DEBUG select DEBUG_LL
ARM: EXYNOS: Add PDMA and MDMA physical base address defines
ARM: S5PV210: Fix compiler warning in dma.c file
ARM: EXYNOS: Fix compile error in exynos5250-cpufreq.c
ARM: EXYNOS: Add missing definition for IRQ_I2S0
ARM: S5PV210: fix unused LDO supply field from wm8994_pdata
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Now that we have OPP layer, and OMAP CPUfreq driver is using it, we no
longer need/use the clock framework code for filling up CPUfreq
tables. Remove it.
Removing this code also eliminates build errors when CPU_FREQ_TABLE
support is not enabled.
Thanks to Russell King for pointing out the parts I missed under
plat-omap in the original version and also pointing out the build
errors when CPUFREQ_TABLE support was not enabled.
Cc: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Kevin Hilman <khilman@ti.com>
Acked-by: Paul Walmsley <paul@pwsan.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
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These were incorrectly introduced and can cause problems for of_irq_init.
The correct way to define a root controller is no interrupt-parent set at
all or the interrupt-parent is set to the root controller itself when
inherited from a parent node.
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Tested-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
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Add config dependency for Exynos4 and Exynos5 device tree enabled machine
files on config options ARCH_EXYNOS4 and ARCH_EXYNOS5 respectively.
Enabling machine support without proper ARCH support enabled is incorrect.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
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The atmel_mxt_ts driver has been extended to support more 'configuration
objects' in commit 81c88a711 ("Input: atmel_mxt_ts - update object list"),
what broke the configuration values for NURI board. These values are
optional anyway, so remove them to get the driver working correctly.
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
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On some versions of NURI and UniversalC210 boards, camera clocks are
routed directly to xusbxti clock source. This patch sets the correct
value for this clock to let usb and camera sensors to work correctly and
avoid division by zero on driver's probe.
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
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Regulator names should not contain slash to avoid issues with debugfs.
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
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When selecting SAMSUNG_PM_DEBUG, it complains about a missing printascii()
function if you do not select DEBUG_LL, so make the former select the latter.
Signed-off-by: Maurus Cuelenaere <mcuelenaere@gmail.com>
Acked-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux
Pull system.h fixups for less common arch's from Paul Gortmaker:
"Here is what is hopefully the last of the system.h related fixups.
The fixes for Alpha and ia64 are code relocations consistent with what
was done for the more mainstream architectures. Note that the
diffstat lines removed vs lines added are not the same since I've
fixed some of the whitespace issues in the relocated code blocks.
However they are functionally the same. Compile tested locally, plus
these two have been in linux-next for a while.
There is also a trivial one line system.h related fix for the Tilera
arch from Chris Metcalf to fix an implict include.."
* 'systemh-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux:
irq_work: fix compile failure on tile from missing include
ia64: populate the cmpxchg header with appropriate code
alpha: fix build failures from system.h dismemberment
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git://git.kernel.org/pub/scm/linux/kernel/git/pjw/omap-pending into fixes
A few OMAP hwmod fixes against v3.4-rc2. One of them is a reversion
of a previous v3.4-rc patch that caused some regressions, and upon
further review, appears not to be necessary. The other two are fairly
minor.
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The invocation of softirq is now handled by irq_exit(), so there is no
need for sparc64 to invoke it on the trap-return path. In fact, doing so
is a bug because if the trap occurred in the idle loop, this invocation
can result in lockdep-RCU failures. The problem is that RCU ignores idle
CPUs, and the sparc64 trap-return path to the softirq handlers fails to
tell RCU that the CPU must be considered non-idle while those handlers
are executing. This means that RCU is ignoring any RCU read-side critical
sections in those handlers, which in turn means that RCU-protected data
can be yanked out from under those read-side critical sections.
The shiny new lockdep-RCU ability to detect RCU read-side critical sections
that RCU is ignoring located this problem.
The fix is straightforward: Make sparc64 stop manually invoking the
softirq handlers.
Reported-by: Meelis Roos <mroos@linux.ee>
Suggested-by: David Miller <davem@davemloft.net>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Tested-by: Meelis Roos <mroos@linux.ee>
Cc: stable@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
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The DS driver registers as a subsys_initcall() but this can be too
early, in particular this risks registering before we've had a chance
to allocate and setup module_kset in kernel/params.c which is
performed also as a subsyts_initcall().
Register DS using device_initcall() insteal.
Signed-off-by: David S. Miller <davem@davemloft.net>
Cc: stable@vger.kernel.org
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The change
commit 4416e9eb0b4859b3d28016c5fd0a609bdcbc8a2a
Author: Gregory Bean <gbean@codeaurora.org>
Date: Wed Jul 28 10:22:12 2010 -0700
arm: msm: Fix section mismatch in smd.c.
fixes a section mismatch between the board file and the smd driver's
probe function, however, it misses the additional mismatches between
the probe function and some routines it calls. Fix these up as well.
Signed-off-by: David Brown <davidb@codeaurora.org>
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Fixes the following warnings,
arch/arm/mach-msm/board-trout.c: In function 'trout_init':
arch/arm/mach-msm/board-trout.c:71: error: 'system_rev' undeclared (first use in this function)
arch/arm/mach-msm/board-trout.c:71: error: (Each undeclared identifier is reported only once
arch/arm/mach-msm/board-trout.c:71: error: for each function it appears in.)
and
arch/arm/mach-msm/board-trout-panel.c: In function 'trout_init_panel':
arch/arm/mach-msm/board-trout-panel.c:267: error: 'system_rev' undeclared (first use in this function)
arch/arm/mach-msm/board-trout-panel.c:267: error: (Each undeclared identifier is reported only once
arch/arm/mach-msm/board-trout-panel.c:267: error: for each function it appears in.)
This came in with the following commit 9f97da78bf018206fb623cd351d454af2f105fe0
which removes asm/system.h
Signed-off-by: Daniel Walker <dwalker@fifo99.com>
cc: David Howells <dhowells@redhat.com>
cc: Bryan Huntsman <bryanh@codeaurora.org>
cc: linux-arm-msm@vger.kernel.org
cc: linux-arm-kernel@lists.infradead.org
Signed-off-by: David Brown <davidb@codeaurora.org>
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This old fixup causes a build failure, so I remove it just like in
trout.
Signed-off-by: Daniel Walker <dwalker@fifo99.com>
Signed-off-by: David Brown <davidb@codeaurora.org>
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commit 93f378883cecb9dcb2cf5b51d9d24175906659da
"Fix ia64 build errors (fallout from system.h disintegration)"
introduced arch/ia64/include/asm/cmpxchg.h as a temporary
build fix and stated:
"... leave the migration of xchg() and cmpxchg() to this new
header file for a future patch."
Migrate the appropriate chunks from asm/intrinsics.h and fix
the whitespace issues in the migrated chunk.
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: David Howells <dhowells@redhat.com>
Acked-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
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commit ec2212088c42ff7d1362629ec26dda4f3e8bdad3
"Disintegrate asm/system.h for Alpha"
combined with commit b4816afa3986704d1404fc48e931da5135820472
"Move the asm-generic/system.h xchg() implementation to asm-generic/cmpxchg.h"
introduced the concept of asm/cmpxchg.h but the alpha arch
never got one. Fork the cmpxchg content out of the asm/atomic.h
file to create one.
Some minor whitespace fixups were done on the block of code that
created the new file.
Cc: Richard Henderson <rth@twiddle.net>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Matt Turner <mattst88@gmail.com>
Cc: David Howells <dhowells@redhat.com>
Acked-by: Matt Turner <mattst88@gmail.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
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Commit 94e5a85b ("ARM: earlier initialization of vectors page") made it
the responsibility of paging_init to initialise the vectors page.
This patch adds a call to early_trap_init for the !CONFIG_MMU case,
placing the vectors at CONFIG_VECTORS_BASE.
Cc: Jonathan Austin <jonathan.austin@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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The description for the CPU_HIGH_VECTOR Kconfig option for nommu builds
doesn't make any sense.
This patch fixes up the trivial grammatical error.
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Some bootloaders are broken enough to expose an ATAG_MEM with
a null size. Converting such tag to a memory node leads to
an unbootable system.
Skip over zero sized ATAG_MEM to avoid this situation.
Acked-by: Nicolas Pitre <nicolas.pitre@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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