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Commit 09cadedbdc01f1a4bea1f427d4fb4642eaa19da9 ("Combine
instrumentation menus in kernel/Kconfig.instrumentation") broke ARM
profiling support, since ARM has some extra Kconfig options and doesn't
just use the common OPROFILE/KPROBES config options.
Rather than just revert the thing outright, or add ARM-specific
knowledge to the generic Kconfig.instrumentation file (where the only
and whole point was to be generic, not too architecture-specific), this
just makes ARM not use the generic version, since it doesn't suit it.
So create an arm-specific version of Kconfig.instrumentation instead,
and use that.
Acked-by: Ingo Molnar <mingo@elte.hu>
Acked-by: Russell King <rmk+lkml@arm.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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These two instructions exceptionally take a single precision register
as their operand. This means we can't use vfp_get_dm() to read the
register number - we need to use vfp_get_sm() instead. Add a flag to
indicate this exception to the general rule.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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- Add missing i2c_board_info struct for at91rm9200
Signed-off-by: Jan Altenberg <jan.altenberg@linutronix.de>
Acked-by: Andrew Victor <avictor.za@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Suspend/resume on the pxa25x was fairly obviously broken in revision
711be5ccfe9a02ba560aa918a008c31ea4760163.
This patch fixes the damage by adding back the missing code.
Signed-off-by: Richard Purdie <rpurdie@rpsys.net>
Acked-by: Eric Miao <eric.y.miao@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Add proper support for CLOCK_EVT_MODE_RESUME and in the process fix
CLOCK_EVT_MODE_SHUTDOWN so that only the enable bits are toggled for both.
Signed-off-by: Kevin Hilman <khilman@mvista.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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According to ARM7TDMI Technical Reference Manual (ARM DDI 0210C) writing
to the DCC data write register coproc dest registers are 1 and 0, not 0
and 1.
ARM920T TRM (ARM DDI 0151C) agrees on that.
Cc: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Uwe Kleine-König <Uwe.Kleine-Koenig@digi.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Change printk to dev_dbg in ITE 8152 driver and remove printk in ITE 8152 ISR.
Move PCI intialization from ->scan to ->preinit method
Signed-off-by: Mike Rapoport <mike@compulab.co.il>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Signed-off-by: bridge wu <bridge.wu@marvell.com>
Signed-off-by: eric miao <eric.miao@marvell.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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The ldrt fixup code expects r9 to be set.
Signed-off-by: Nicolas Pitre <nico@marvell.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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The ARM __kuser_cmpxchg routine is meant to implement an atomic cmpxchg
in user space. It however can produce spurious false negative if a
processor exception occurs in the middle of the operation. Normally
this is not a problem since cmpxchg is typically called in a loop until
it succeeds to implement an atomic increment for example.
Some use cases which don't involve a loop require that the operation be
100% reliable though. This patch changes the implementation so to
reattempt the operation after an exception has occurred in the critical
section rather than abort it.
Here's a simple program to test the fix (don't use CONFIG_NO_HZ in your
kernel as this depends on a sufficiently high interrupt rate):
#include <stdio.h>
typedef int (__kernel_cmpxchg_t)(int oldval, int newval, int *ptr);
#define __kernel_cmpxchg (*(__kernel_cmpxchg_t *)0xffff0fc0)
int main()
{
int i, x = 0;
for (i = 0; i < 100000000; i++) {
int v = x;
if (__kernel_cmpxchg(v, v+1, &x))
printf("failed at %d: %d vs %d\n", i, v, x);
}
printf("done with %d vs %d\n", i, x);
return 0;
}
Signed-off-by: Nicolas Pitre <nico@marvell.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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The lock is acquired with spin_lock_irqsave() and released in the
not-found case with spin_unlock_irqrestore().
Signed-off-by: Nicolas Pitre <nico@marvell.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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The size passing to memset is wrong. And here we can replace kmalloc with
kzalloc.
Signed-off-by Li Zefan <lizf@cn.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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The AITC code did not allow to start kernel, if bootloader
manipulates with interrupt level mask. The change ensures,
that NIMASK is initialized into correct state and that
interrupts enable registers are cleared.
Signed-off-by: Pavel Pisa <pisa@cmp.felk.cvut.cz>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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The incorrect GPIO pins are being initialized for the buttons on the
Atmel AT91SAM9261-EK board. This buggy configuration turns LCD screen
blue...
Signed-off-by: Nicolas Ferre <nicolas.ferre@rfo.atmel.com>
Signed-off-by: Andrew Victor <andrew@sanpeople.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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The AT91 I2C driver is currently marked as "broken" due to hardware
issues. This patch enables AT91-based platforms to also use the
bitbanged GPIO for I2C.
This updates platform setup logic (setting up an i2c-gpio device
using the same pins as the i2c-at91 device, unless only the BROKEN
driver is enabled).
Also make use of the new-style initialization of I2C devices using
i2c_register_board_info().
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Andrew Victor <andrew@sanpeople.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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The calculation for the Master clock divisor (MDIV) is different on the
SAM9 processors than on the AT91RM9200.
Orignal patch from Sascha Erlacher.
Also use the defined AT91_PMC_PRES instead of hard-coded bitmasks.
Signed-off-by: Andrew Victor <andrew@sanpeople.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Signed-off-by: Roel Kluin <12o3l@tiscali.nl>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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CKEN_USBHOST should be used instead of CKEN_USB for usb host
Signed-off-by: eric miao <eric.miao@marvell.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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* 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm:
[ARM] 4638/1: pxa: use PXA3xx specific macros to define clks
[ARM] remove useless setting of VM_RESERVED
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PXA3xx uses its own clk_pxa3xx_cken_ops, modify the code to use the
PXA3xx specific macros to define its clocks
Signed-off-by: eric miao <eric.miao@marvell.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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* 'release' of git://lm-sensors.org/kernel/mhoffman/hwmon-2.6:
hwmon: (i5k_amb) Convert macros to C functions
hwmon: (w83781d) Add missing curly braces
hwmon: (abituguru3) Identify ABit IP35 Pro as such
hwmon: (f75375s) pwmX_mode sysfs files writable for f75375 variant
hwmon: (f75375s) On n2100 systems, set fans to full speed on boot
hwmon: (f75375s) Allow setting up fans with platform_data
hwmon: (f75375s) Add new style bindings
hwmon: (lm70) Convert semaphore to mutex
hwmon: (applesmc) Add support for Mac Pro 2 x Quad-Core
hwmon: (abituguru3) Add support for 2 new motherboards
hwmon: (ibmpex) Change printk to dev_{info,err} macros
hwmon: (i5k_amb) New memory temperature sensor driver
hwmon: (f75375s) fix pwm mode setting
hwmon: (ibmpex.c) fix NULL dereference
hwmon: (sis5595) Split sis5595_attributes_opt
hwmon: (sis5595) Add individual alarm files
hwmon: (w83627hf) push nr+1 offset into *_REG_FAN macros and simplify
hwmon: (w83627hf) hoist nr-1 offset out of show-store-temp-X
hwmon: Add power meter spec to Documentation/hwmon/sysfs-interface
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remap_pfn_range() takes care of setting the appropriate VM_*
flags itself; there's no need for callers of remap_pfn_range()
to set VM_RESERVED before it is called.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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One-shot timer mode on PXA has various bugs which prevent kernels
build with NO_HZ enabled booting. They end up spinning on a
permanently asserted timer interrupt because we don't properly
clear it down - clearing the OIER bit does not stop the pending
interrupt status. Fix this in the set_mode handler as well.
Moreover, the code which sets the next expiry point may race with
the hardware, and we might not set the match register sufficiently
in the future. If we encounter that situation, return -ETIME so
the generic time code retries.
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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On thecus n2100, the bootloader does not setup fans to run. In order
to protect the user from frying their gear, start up fans on boot.
Signed-off-by: Riku Voipio <riku.voipio@movial.fi>
Acked-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Mark M. Hoffman <mhoffman@lightlink.com>
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Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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This fixes a section error on OMAP when the framebuffer is enabled.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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With commit 5984a2fc7e7c9ab118e78ae9799e98fc4ade40f9 kobject_name() is
correctly being used to access the name field of kobj, but that function
needs a pointer to a kobject, not the kobject itself.
Signed-off-by: Robert Schwebel <r.schwebel@pengutronix.de>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Signed-off-by: eric miao <eric.miao@marvell.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Signed-off-by: eric miao <eric.miao@marvell.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Fix assignment instead of condition
Signed-off-by: Roel Kluin <12o3l@tiscali.nl>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Resolve:
CC arch/arm/mach-pxa/time.o
arch/arm/mach-pxa/time.c: In function `pxa_osmr0_set_mode':
arch/arm/mach-pxa/time.c:154: warning: enumeration value `CLOCK_EVT_MODE_RESUME' not handled in switch
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Jon Eibertzon writes:
> We have noticed that the I-cache is disabled while waiting for
> interrupt in cpu_arm926_do_idle in arch/arm/mm/proc-arm926.S
> and we are curious to know why, because this causes us a great
> performance hit when executing in FIQ-handlers. Is it assumed
> here that every individual FIQ-handler re-enables the I-cache?
The I-cache disable is an errata workaround, so the solution is to
disable FIQs across the section with the I-cache disabled.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Fix:
CC arch/arm/mach-netx/xc.o
arch/arm/mach-netx/xc.c: In function 'request_xc':
arch/arm/mach-netx/xc.c:192: error: 'struct kobject' has no member named 'name'
arch/arm/mach-netx/xc.c:196: error: 'struct kobject' has no member named 'name'
arch/arm/mach-netx/xc.c:200: error: 'struct kobject' has no member named 'name'
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Fix:
arch/arm/mach-omap1/built-in.o: In function `h2_init':
board-h2.c:(.init.text+0xbb4): undefined reference to `i2c_register_board_info'
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Fix links to files in Documentation/* in various Kconfig files
Signed-off-by: Dirk Hohndel <hohndel@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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* 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm:
[ARM] 4630/1: Fix the vector stride of the double vector instruction.
[ARM] 4629/1: Fix VFP emulation code to clear all exception flags of FPEXC
[ARM] 4613/1: pxa300: MFP typo fix
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arch/arm/common/dmabounce.c: In function 'dma_map_sg':
arch/arm/common/dmabounce.c:445: error: implicit declaration of function 'sg_page'
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
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Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
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The vector stride of the double-precision vector instructions must be changed
to 1-2 from even 2-4, because the double registers numbering has been
changed to 0-15 from even 0-30 by
1356c1948da967bc1d4c663762bfe21dfcec4b2f commit.
Signed-off-by: Takashi Ohmasa <ohmasa.takashi@jp.panasonic.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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All exception flags of the FPEXC register must be cleared before
returning from exception code to user code, including FP2V and OFC.
Signed-off-by: Takashi Ohmasa <ohmasa.takashi@jp.panasonic.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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This fixes a typo in MFP address map.
Signed-off-by: Aleksey Makarov <amakarov@ru.mvista.com>
Acked-by: Eric Miao <eric.y.miao@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Most of these fixes were already submitted for old kernel versions, and were
approved, but for some reason they never made it into the releases.
Because this is a consolidation of a couple old missed patches, it touches both
Kconfigs and documentation texts.
Signed-off-by: Matt LaPlante <kernel1@cyberdogtech.com>
Acked-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Adrian Bunk <bunk@kernel.org>
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* Convert files to UTF-8.
* Also correct some people's names
(one example is Eißfeldt, which was found in a source file.
Given that the author used an ß at all in a source file
indicates that the real name has in fact a 'ß' and not an 'ss',
which is commonly used as a substitute for 'ß' when limited to
7bit.)
* Correct town names (Goettingen -> Göttingen)
* Update Eberhard Mönkeberg's address (http://lkml.org/lkml/2007/1/8/313)
Signed-off-by: Jan Engelhardt <jengelh@gmx.de>
Signed-off-by: Adrian Bunk <bunk@kernel.org>
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Fix the various misspellings of "system", controller", "interrupt" and
"[un]necessary".
Signed-off-by: Robert P. J. Day <rpjday@mindspring.com>
Signed-off-by: Adrian Bunk <bunk@kernel.org>
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Quoting Randy:
"It seems sad that this patch sources Kconfig.marker, a 7-line file,
20-something times. Yes, you (we) don't want to put those 7 lines into
20-something different files, so sourcing is the right thing.
However, what you did for avr32 seems more on the right track to me: make
_one_ Instrumentation support menu that includes PROFILING, OPROFILE, KPROBES,
and MARKERS and then use (source) that in all of the arches."
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
Acked-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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One of the easiest things to isolate is the pid printed in kernel log.
There was a patch, that made this for arch-independent code, this one makes
so for arch/xxx files.
It took some time to cross-compile it, but hopefully these are all the
printks in arch code.
Signed-off-by: Alexey Dobriyan <adobriyan@openvz.org>
Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Cc: <linux-arch@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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is_init() is an ambiguous name for the pid==1 check. Split it into
is_global_init() and is_container_init().
A cgroup init has it's tsk->pid == 1.
A global init also has it's tsk->pid == 1 and it's active pid namespace
is the init_pid_ns. But rather than check the active pid namespace,
compare the task structure with 'init_pid_ns.child_reaper', which is
initialized during boot to the /sbin/init process and never changes.
Changelog:
2.6.22-rc4-mm2-pidns1:
- Use 'init_pid_ns.child_reaper' to determine if a given task is the
global init (/sbin/init) process. This would improve performance
and remove dependence on the task_pid().
2.6.21-mm2-pidns2:
- [Sukadev Bhattiprolu] Changed is_container_init() calls in {powerpc,
ppc,avr32}/traps.c for the _exception() call to is_global_init().
This way, we kill only the cgroup if the cgroup's init has a
bug rather than force a kernel panic.
[akpm@linux-foundation.org: fix comment]
[sukadev@us.ibm.com: Use is_global_init() in arch/m32r/mm/fault.c]
[bunk@stusta.de: kernel/pid.c: remove unused exports]
[sukadev@us.ibm.com: Fix capability.c to work with threaded init]
Signed-off-by: Serge E. Hallyn <serue@us.ibm.com>
Signed-off-by: Sukadev Bhattiprolu <sukadev@us.ibm.com>
Acked-by: Pavel Emelianov <xemul@openvz.org>
Cc: Eric W. Biederman <ebiederm@xmission.com>
Cc: Cedric Le Goater <clg@fr.ibm.com>
Cc: Dave Hansen <haveblue@us.ibm.com>
Cc: Herbert Poetzel <herbert@13thfloor.at>
Cc: Kirill Korotaev <dev@sw.ru>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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To be consistent with the use of attributes in the rest of the kernel
replace all use of __attribute_pure__ with __pure and delete the definition
of __attribute_pure__.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Cc: Russell King <rmk@arm.linux.org.uk>
Acked-by: Mauro Carvalho Chehab <mchehab@infradead.org>
Cc: Bryan Wu <bryan.wu@analog.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Linus Torvalds
Russell King
Jan Altenberg
Richard Purdie
Kevin Hilman
Uwe Kleine-König
Mike Rapoport
eric miao
Nicolas Pitre
Li Zefan
Pavel Pisa
Andrew Victor
Roel Kluin
Riku Voipio
David Brownell
Robert Schwebel
Dirk Hohndel
FUJITA Tomonori
Jens Axboe
Takashi Ohmasa
Aleksey Makarov
Matt LaPlante
Jan Engelhardt
Robert P. J. Day
Mathieu Desnoyers
Alexey Dobriyan
Serge E. Hallyn
Ralf Baechle