29 Nov, 2011
1 commit
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alpha copied pci_iomap from generic code to avoid
pulling the rest of iomap.c in. Since that's in
a separate file now, we can reuse the common implementation.The only difference is handling of nocache flag,
that turns out to be done correctly by the
generic code since arch/alpha/include/asm/io.h
defines ioremap_nocache same as ioremap.Signed-off-by: Michael S. Tsirkin
25 Nov, 2011
1 commit
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define GENERIC_IOMAP in a central location
instead of all architectures. This will be helpful
for the follow-up patch which makes it select
other configs. Code is also a bit shorter this way.Signed-off-by: Michael S. Tsirkin
07 Nov, 2011
1 commit
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* 'trivial' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild:
scsi: drop unused Kconfig symbol
pci: drop unused Kconfig symbol
stmmac: drop unused Kconfig symbol
x86: drop unused Kconfig symbol
powerpc: drop unused Kconfig symbols
powerpc: 40x: drop unused Kconfig symbol
mips: drop unused Kconfig symbols
openrisc: drop unused Kconfig symbols
arm: at91: drop unused Kconfig symbol
samples: drop unused Kconfig symbol
m32r: drop unused Kconfig symbol
score: drop unused Kconfig symbols
sh: drop unused Kconfig symbol
um: drop unused Kconfig symbol
sparc: drop unused Kconfig symbol
alpha: drop unused Kconfig symbolFix up trivial conflict in drivers/net/ethernet/stmicro/stmmac/Kconfig
as per Michal: the STMMAC_DUAL_MAC config variable is still unused and
should be deleted.
01 Nov, 2011
1 commit
-
Signed-off-by: Paul Bolle
Reviewed-by: Matt Turner
Signed-off-by: Michal Marek
15 Sep, 2011
1 commit
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Since GPIOLIB is optional on alpha, GENERIC_GPIO must not be selected by
default. If GPIOLIB is enabled, it will select GENERIC_GPIO.See for an example of what 'def_bool y'
breaks.Reported-by: Michael Cree
Signed-off-by: Ben Hutchings
Cc: Richard Henderson
Cc: Ivan Kokshaysky
Cc: Matt Turner
Cc: Michael Cree
Cc: Mark Brown
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
03 Aug, 2011
2 commits
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Some trivial conflicts due to other various merges
adding to the end of common lists sooner than this one.arch/ia64/Kconfig
arch/powerpc/Kconfig
arch/x86/Kconfig
lib/Kconfig
lib/MakefileSigned-off-by: Len Brown
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cmpxchg() is widely used by lockless code, including NMI-safe lockless
code. But on some architectures, the cmpxchg() implementation is not
NMI-safe, on these architectures the lockless code may need a
spin_trylock_irqsave() based implementation.This patch adds a Kconfig option: ARCH_HAVE_NMI_SAFE_CMPXCHG, so that
NMI-safe lockless code can depend on it or provide different
implementation according to it.On many architectures, cmpxchg is only NMI-safe for several specific
operand sizes. So, ARCH_HAVE_NMI_SAFE_CMPXCHG define in this patch
only guarantees cmpxchg is NMI-safe for sizeof(unsigned long).Signed-off-by: Huang Ying
Acked-by: Mike Frysinger
Acked-by: Paul Mundt
Acked-by: Hans-Christian Egtvedt
Acked-by: Benjamin Herrenschmidt
Acked-by: Chris Metcalf
Acked-by: Richard Henderson
CC: Mikael Starvik
Acked-by: David Howells
CC: Yoshinori Sato
CC: Tony Luck
CC: Hirokazu Takata
CC: Geert Uytterhoeven
CC: Michal Simek
Acked-by: Ralf Baechle
CC: Kyle McMartin
CC: Martin Schwidefsky
CC: Chen Liqin
CC: "David S. Miller"
CC: Ingo Molnar
CC: Chris Zankel
Signed-off-by: Len Brown
09 Jun, 2011
1 commit
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Lenghty lists of the kind "depends on ARCH1 || ARCH2 ... || ARCH123" are
usually either wrong or too coarse grained. Or plain an ugly sin.[ tglx: Fixed up amigaone ]
Signed-off-by: Ralf Baechle
Cc: Richard Henderson
Cc: Ivan Kokshaysky
Cc: Matt Turner
Acked-by: Benjamin Herrenschmidt
Cc: Paul Mackerras
Cc: linux-alpha@vger.kernel.org
Cc: linux-mips@linux-mips.org
Cc: linuxppc-dev@lists.ozlabs.org
Cc: Gerhard Pircher
Link: http://lkml.kernel.org/r/20110601180610.984881988@duck.linux-mips.net
Signed-off-by: Thomas Gleixner
27 May, 2011
1 commit
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By the previous style change, CONFIG_GENERIC_FIND_NEXT_BIT,
CONFIG_GENERIC_FIND_BIT_LE, and CONFIG_GENERIC_FIND_LAST_BIT are not used
to test for existence of find bitops anymore.Signed-off-by: Akinobu Mita
Acked-by: Greg Ungerer
Cc: Arnd Bergmann
Cc: Russell King
Cc: Martin Schwidefsky
Cc: Heiko Carstens
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
25 May, 2011
1 commit
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Allow people to use gpiolib on Alpha if they want to, mostly for build
coverage. The header is a stright copy of that for Microblaze, which in
turn was taken from PowerPC.[akpm@linux-foundation.org: define GENERIC_GPIO]
Signed-off-by: Mark Brown
Cc: Richard Henderson
Cc: Ivan Kokshaysky
Cc: Matt Turner
Acked-by: Grant Likely
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
30 Mar, 2011
1 commit
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Signed-off-by: Thomas Gleixner
29 Mar, 2011
1 commit
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The only subtle difference is that alpha uses ACTUAL_NR_IRQS and
prints the IRQF_DISABLED flag.Change the generic implementation to deal with ACTUAL_NR_IRQS if
defined.The IRQF_DISABLED printing is pointless, as we nowadays run all
interrupts with irqs disabled.Signed-off-by: Thomas Gleixner
03 Mar, 2011
1 commit
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All interrupt chips are converted. Mark it clean.
Signed-off-by: Thomas Gleixner
Signed-off-by: Matt Turner
21 Jan, 2011
2 commits
-
Signed-off-by: Thomas Gleixner
Cc: Richard Henderson -
All architectures are finally converted. Remove the cruft.
Signed-off-by: Thomas Gleixner
Cc: Richard Henderson
Cc: Mike Frysinger
Cc: David Howells
Cc: Tony Luck
Cc: Greg Ungerer
Cc: Michal Simek
Acked-by: David Howells
Cc: Kyle McMartin
Acked-by: Benjamin Herrenschmidt
Cc: Chen Liqin
Cc: "David S. Miller"
Cc: Chris Metcalf
Cc: Jeff Dike
17 Jan, 2011
1 commit
-
Acked-by: Kyle McMartin
Signed-off-by: Matt Turner
29 Oct, 2010
1 commit
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* 'kconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6: (38 commits)
kbuild: convert `arch/tile' to the kconfig mainmenu upgrade
README: cite nconfig
Revert "kconfig: Temporarily disable dependency warnings"
kconfig: Use PATH_MAX instead of 128 for path buffer sizes.
kconfig: Fix realloc usage()
kconfig: Propagate const
kconfig: Don't go out from read config loop when you read new symbol
kconfig: fix menuconfig on debian lenny
kbuild: migrate all arch to the kconfig mainmenu upgrade
kconfig: expand file names
kconfig: use the file's name of sourced file
kconfig: constify file name
kconfig: don't emit warning upon rootmenu's prompt redefinition
kconfig: replace KERNELVERSION usage by the mainmenu's prompt
kconfig: delay gconf window initialization
kconfig: expand by default the rootmenu's prompt
kconfig: add a symbol string expansion helper
kconfig: regen parser
kconfig: implement the `mainmenu' directive
kconfig: allow PACKAGE to be defined on the compiler's command-line
...Fix up trivial conflict in arch/mn10300/Kconfig
27 Oct, 2010
1 commit
-
Signed-off-by: FUJITA Tomonori
Cc: Ivan Kokshaysky
Cc: Richard Henderson
Cc: Matt Turner
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
19 Oct, 2010
1 commit
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Provide a mechanism that allows running code in IRQ context. It is
most useful for NMI code that needs to interact with the rest of the
system -- like wakeup a task to drain buffers.Perf currently has such a mechanism, so extract that and provide it as
a generic feature, independent of perf so that others may also
benefit.The IRQ context callback is generated through self-IPIs where
possible, or on architectures like powerpc the decrementer (the
built-in timer facility) is set to generate an interrupt immediately.Architectures that don't have anything like this get to do with a
callback from the timer tick. These architectures can call
irq_work_run() at the tail of any IRQ handlers that might enqueue such
work (like the perf IRQ handler) to avoid undue latencies in
processing the work.Signed-off-by: Peter Zijlstra
Acked-by: Kyle McMartin
Acked-by: Martin Schwidefsky
[ various fixes ]
Signed-off-by: Huang Ying
LKML-Reference:
Signed-off-by: Ingo Molnar
12 Oct, 2010
1 commit
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We need to revert the temporary hack in 71ebc01, hence the merge.
20 Sep, 2010
1 commit
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Signed-off-by: Arnaud Lacombe
Reviewed-by: Sam Ravnborg
Reviewed-by: Michal Marek
27 Jul, 2010
1 commit
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Now that all arches have been converted over to use generic time via
clocksources or arch_gettimeoffset(), we can remove the GENERIC_TIME
config option and simplify the generic code.Signed-off-by: John Stultz
LKML-Reference:
Signed-off-by: Thomas Gleixner
28 May, 2010
1 commit
-
Signed-off-by: FUJITA Tomonori
Acked-by: Matt Turner
Cc: Richard Henderson
Cc: Ivan Kokshaysky
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
26 May, 2010
1 commit
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Alpha has a tsc like rpcc counter that it uses to manage time.
This can be converted to an actual clocksource instead of utilizing
the arch_gettimeoffset method that is really only there for legacy
systems with no continuous counter.Further cleanups could be made if alpha converted to the clockevent
model.CC: Thomas Gleixner
CC: Richard Henderson
Acked-by: Ivan Kokshaysky
Tested-by: Ivan Kokshaysky
Signed-off-by: Matt Turner
Signed-off-by: John Stultz
20 May, 2010
1 commit
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…ernel/git/tip/linux-2.6-tip
* 'timers-for-linus-cleanups' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
avr32: Fix typo in read_persistent_clock()
sparc: Convert sparc to use read/update_persistent_clock
cris: Convert cris to use read/update_persistent_clock
m68k: Convert m68k to use read/update_persistent_clock
m32r: Convert m32r to use read/update_peristent_clock
blackfin: Convert blackfin to use read/update_persistent_clock
ia64: Convert ia64 to use read/update_persistent_clock
avr32: Convert avr32 to use read/update_persistent_clock
h8300: Convert h8300 to use read/update_persistent_clock
frv: Convert frv to use read/update_persistent_clock
mn10300: Convert mn10300 to use read/update_persistent_clock
alpha: Convert alpha to use read/update_persistent_clock
xtensa: Fix unnecessary setting of xtime
time: Clean up direct xtime usage in xen
13 Mar, 2010
3 commits
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This patch converts the alpha architecture to use the generic
read_persistent_clock and update_persistent_clock interfaces, reducing
the amount of arch specific code we have to maintain, and allowing for
further cleanups in the future.I have not built or tested this patch, so help from arch maintainers
would be appreciated.igned-off-by: John Stultz
Cc: Richard Henderson
Cc: Andrew Morton
LKML-Reference:
Signed-off-by: Thomas Gleixner -
This converts Alpha to use include/linux/pci-dma-compat.h. Alpha is the
only architecutre that implements the PCI DMA API in the own way. That
makes it difficult to implement the generic DMA API via the PCI bus
specific DMA API.The generic DMA API calls the PCI DMA API implementation in
arch/alpha/kernel/pci_iommu.c on non Jensen systems. It calls the DMA API
in arch/alpha/kernel/pci-noop.c on Jensen systems.Signed-off-by: FUJITA Tomonori
Cc: Richard Henderson
Cc: Ivan Kokshaysky
Cc: Matt Turner
Cc: Jesse Barnes
Cc: Greg KH
Cc: Kay Sievers
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Signed-off-by: FUJITA Tomonori
Cc: Richard Henderson
Cc: Ivan Kokshaysky
Acked-by: Matt Turner
Cc: Jesse Barnes
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
18 Dec, 2009
1 commit
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In the kernel the patch enables configuration of the perf event
option, adds the perf_event_open syscall, and includes a minimal
architecture specific asm/perf_event.h header file.Signed-off-by: Michael Cree
Cc: Richard Henderson
Cc: Ivan Kokshaysky
Cc: Peter Zijlstra
Cc: Paul Mackerras
Cc: Ingo Molnar
Signed-off-by: Matt Turner
22 Sep, 2009
1 commit
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Converts alpha to use GENERIC_TIME via the arch_getoffset()
infrastructure, reducing the amount of arch specific code we need to
maintain.I suspect the alpha arch could even be further improved to provide and
rpcc() based clocksource, but not having the hardware, I don't feel
comfortable attempting the more complicated conversion (but I'd be glad to
help if anyone else is interested).[akpm@linux-foundation.org: fix build]
Signed-off-by: John Stultz
Cc: Richard Henderson
Cc: Ivan Kokshaysky
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
30 Jan, 2009
1 commit
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Convert OSF syscalls and add alpha specific SYSCALL_ALIAS() macro.
Signed-off-by: Ivan Kokshaysky
Cc: Richard Henderson
Cc: Heiko Carstens
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
20 Oct, 2008
1 commit
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This patch implements a new freezer subsystem in the control groups
framework. It provides a way to stop and resume execution of all tasks in
a cgroup by writing in the cgroup filesystem.The freezer subsystem in the container filesystem defines a file named
freezer.state. Writing "FROZEN" to the state file will freeze all tasks
in the cgroup. Subsequently writing "RUNNING" will unfreeze the tasks in
the cgroup. Reading will return the current state.* Examples of usage :
# mkdir /containers/freezer
# mount -t cgroup -ofreezer freezer /containers
# mkdir /containers/0
# echo $some_pid > /containers/0/tasksto get status of the freezer subsystem :
# cat /containers/0/freezer.state
RUNNINGto freeze all tasks in the container :
# echo FROZEN > /containers/0/freezer.state
# cat /containers/0/freezer.state
FREEZING
# cat /containers/0/freezer.state
FROZENto unfreeze all tasks in the container :
# echo RUNNING > /containers/0/freezer.state
# cat /containers/0/freezer.state
RUNNINGThis is the basic mechanism which should do the right thing for user space
task in a simple scenario.It's important to note that freezing can be incomplete. In that case we
return EBUSY. This means that some tasks in the cgroup are busy doing
something that prevents us from completely freezing the cgroup at this
time. After EBUSY, the cgroup will remain partially frozen -- reflected
by freezer.state reporting "FREEZING" when read. The state will remain
"FREEZING" until one of these things happens:1) Userspace cancels the freezing operation by writing "RUNNING" to
the freezer.state file
2) Userspace retries the freezing operation by writing "FROZEN" to
the freezer.state file (writing "FREEZING" is not legal
and returns EIO)
3) The tasks that blocked the cgroup from entering the "FROZEN"
state disappear from the cgroup's set of tasks.[akpm@linux-foundation.org: coding-style fixes]
[akpm@linux-foundation.org: export thaw_process]
Signed-off-by: Cedric Le Goater
Signed-off-by: Matt Helsley
Acked-by: Serge E. Hallyn
Tested-by: Matt Helsley
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
17 Oct, 2008
1 commit
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Remove a dead URL.
Cc: Yoshinori Sato
Signed-off-by: Adrian Bunk
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
07 Sep, 2008
2 commits
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HAVE_AOUT doesn't quite do the same thing as the recently removed
ARCH_SUPPORTS_AOUT config option. That was set even on platforms where
binfmt_aout isn't supported, although it's not entirely clear why.So it's best just to introduce a new symbol, handled consistently with
other similar HAVE_xxx symbols; with a simple 'select' in the arch Kconfig.Signed-off-by: David Woodhouse
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We don't need this any more; arguably we never really did.
Signed-off-by: David Woodhouse
25 Jul, 2008
1 commit
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The real option is named AGP_ALPHA_CORE.
Reviewed-by: Robert P. J. Day
Signed-off-by: Adrian Bunk
Cc: Richard Henderson
Cc: Ivan Kokshaysky
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
26 Jun, 2008
1 commit
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This converts alpha to use the new helpers for smp_call_function() and
friends, and adds support for smp_call_function_single().Signed-off-by: Jens Axboe
14 Mar, 2008
1 commit
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iommu_is_span_boundary in lib/iommu-helper.c was exported for PARISC IOMMUs
(commit 3715863aa142c4f4c5208f5f3e5e9bac06006d2f). Alpha's IOMMU can use it.This removes the check on the boundary size alignment because
iommu_is_span_boundary does.Signed-off-by: FUJITA Tomonori
Cc: Richard Henderson
Acked-by: Ivan Kokshaysky
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
09 Feb, 2008
2 commits
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To allow flexible configuration of IDE introduce HAVE_IDE.
All archs except arm, um and s390 unconditionally select it.
For arm the actual configuration determine if IDE is supported.This is a step towards introducing drivers/Kconfig for arm.
Signed-off-by: Sam Ravnborg
Acked-by: Russell King - ARM Linux
Acked-by: Bartlomiej Zolnierkiewicz -
When the conversion factor between jiffies and milli- or microseconds is
not a single multiply or divide, as for the case of HZ == 300, we currently
do a multiply followed by a divide. The intervening result, however, is
subject to overflows, especially since the fraction is not simplified (for
HZ == 300, we multiply by 300 and divide by 1000).This is exposed to the user when passing a large timeout to poll(), for
example.This patch replaces the multiply-divide with a reciprocal multiplication on
32-bit platforms. When the input is an unsigned long, there is no portable
way to do this on 64-bit platforms there is no portable way to do this
since it requires a 128-bit intermediate result (which gcc does support on
64-bit platforms but may generate libgcc calls, e.g. on 64-bit s390), but
since the output is a 32-bit integer in the cases affected, just simplify
the multiply-divide (*3/10 instead of *300/1000).The reciprocal multiply used can have off-by-one errors in the upper half
of the valid output range. This could be avoided at the expense of having
to deal with a potential 65-bit intermediate result. Since the intent is
to avoid overflow problems and most of the other time conversions are only
semiexact, the off-by-one errors were considered an acceptable tradeoff.At Ralf Baechle's suggestion, this version uses a Perl script to compute
the necessary constants. We already have dependencies on Perl for kernel
compiles. This does, however, require the Perl module Math::BigInt, which
is included in the standard Perl distribution starting with version 5.8.0.
In order to support older versions of Perl, include a table of canned
constants in the script itself, and structure the script so that
Math::BigInt isn't required if pulling values from said table.Running the script requires that the HZ value is available from the
Makefile. Thus, this patch also adds the Kconfig variable CONFIG_HZ to the
architectures which didn't already have it (alpha, cris, frv, h8300, m32r,
m68k, m68knommu, sparc, v850, and xtensa.) It does *not* touch the sh or
sh64 architectures, since Paul Mundt has dealt with those separately in the
sh tree.Signed-off-by: H. Peter Anvin
Cc: Ralf Baechle ,
Cc: Sam Ravnborg ,
Cc: Paul Mundt ,
Cc: Richard Henderson ,
Cc: Michael Starvik ,
Cc: David Howells ,
Cc: Yoshinori Sato ,
Cc: Hirokazu Takata ,
Cc: Geert Uytterhoeven ,
Cc: Roman Zippel ,
Cc: William L. Irwin ,
Cc: Chris Zankel ,
Cc: H. Peter Anvin ,
Cc: Jan Engelhardt
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
