17 Oct, 2007
5 commits
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dma_cache_(wback|inv|wback_inv) were the earliest attempt on a generalized
cache managment API for I/O purposes. Originally it was basically the raw
MIPS low level cache API exported to the entire world. The API has
suffered from a lack of documentation, was not very widely used unlike it's
more modern brothers and can easily be replaced by dma_cache_sync. So
remove it rsp. turn the surviving bits back into an arch private API, as
discussed on linux-arch.Signed-off-by: Ralf Baechle
Acked-by: Paul Mundt
Acked-by: Paul Mackerras
Acked-by: David S. Miller
Acked-by: Kyle McMartin
Acked-by: Haavard Skinnemoen
Cc:
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
* git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild: (40 commits)
kbuild: introduce ccflags-y, asflags-y and ldflags-y
kbuild: enable 'make CPPFLAGS=...' to add additional options to CPP
kbuild: enable use of AFLAGS and CFLAGS on commandline
kbuild: enable 'make AFLAGS=...' to add additional options to AS
kbuild: fix AFLAGS use in h8300 and m68knommu
kbuild: check for wrong use of CFLAGS
kbuild: enable 'make CFLAGS=...' to add additional options to CC
kbuild: fix up CFLAGS usage
kbuild: make modpost detect unterminated device id lists
kbuild: call export_report from the Makefile
kbuild: move Kai Germaschewski to CREDITS
kconfig/menuconfig: distinguish between selected-by-another options and comments
kconfig: tristate choices with mixed tristate and boolean values
include/linux/Kbuild: remove duplicate entries
kbuild: kill backward compatibility checks
kbuild: kill EXTRA_ARFLAGS
kbuild: fix documentation in makefiles.txt
kbuild: call make once for all targets when O=.. is used
kbuild: pass -g to assembler under CONFIG_DEBUG_INFO
kbuild: update _shipped files for kconfig syntax cleanup
...Fix up conflicts in arch/um/sys-{x86_64,i386}/Makefile manually.
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Introduce architecture dependent kretprobe blacklists to prohibit users
from inserting return probes on the function in which kprobes can be
inserted but kretprobes can not.This patch also removes "__kprobes" mark from "__switch_to" on x86_64 and
registers "__switch_to" to the blacklist on x86-64, because that mark is to
prohibit user from inserting only kretprobe.Signed-off-by: Masami Hiramatsu
Cc: Prasanna S Panchamukhi
Acked-by: Ananth N Mavinakayanahalli
Cc: Anil S Keshavamurthy
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
We have had complaints where a threaded application is left in a bad state
after one of it's threads is killed when we hit a VM: out_of_memory
condition.Killing just one of the process threads can leave the application in a bad
state, whereas killing the entire process group would allow for the
application to restart, or be otherwise handled, and makes it very obvious
that something has gone wrong.This change allows the entire process group to be taken down, rather
than just the one thread.Signed-off-by: Will Schmidt
Cc: Richard Henderson
Cc: Ivan Kokshaysky
Cc: Russell King
Cc: Ian Molton
Cc: Haavard Skinnemoen
Cc: Mikael Starvik
Cc: David Howells
Cc: Andi Kleen
Cc: "Luck, Tony"
Cc: Hirokazu Takata
Cc: Geert Uytterhoeven
Cc: Roman Zippel
Cc: Ralf Baechle
Cc: Kyle McMartin
Cc: Matthew Wilcox
Cc: Paul Mackerras
Cc: Benjamin Herrenschmidt
Cc: Heiko Carstens
Cc: Martin Schwidefsky
Cc: Paul Mundt
Cc: Kazumoto Kojima
Cc: Richard Curnow
Cc: William Lee Irwin III
Cc: "David S. Miller"
Cc: Chris Zankel
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Identical handlers of PTRACE_DETACH go into ptrace_request().
Not touching compat code.
Not touching archs that don't call ptrace_request.Signed-off-by: Alexey Dobriyan
Acked-by: Christoph Hellwig
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
16 Oct, 2007
1 commit
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The variable AFLAGS is a wellknown variable and the usage by
kbuild may result in unexpected behaviour.
On top of that several people over time has asked for a way to
pass in additional flags to gcc.This patch replace use of AFLAGS with KBUILD_AFLAGS all over
the tree.Patch was tested on following architectures:
alpha, arm, i386, x86_64, mips, sparc, sparc64, ia64, m68k, s390Signed-off-by: Sam Ravnborg
15 Oct, 2007
1 commit
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The variable CFLAGS is a wellknown variable and the usage by
kbuild may result in unexpected behaviour.
On top of that several people over time has asked for a way to
pass in additional flags to gcc.This patch replace use of CFLAGS with KBUILD_CFLAGS all over the
tree and enabling one to use:
make CFLAGS=...
to specify additional gcc commandline options.One usecase is when trying to find gcc bugs but other
use cases has been requested too.Patch was tested on following architectures:
alpha, arm, i386, x86_64, mips, sparc, sparc64, ia64, m68kTest was simple to do a defconfig build, apply the patch and check
that nothing got rebuild.Signed-off-by: Sam Ravnborg
11 Oct, 2007
12 commits
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As explained on:
http://www.avrfreaks.net/index.php?nameÿphpBB2&fileÿewtopic&tS307
If the current process is preempted before it can copy RAR_SUP and
RSR_SUP both register are lost and the process will segfault as soon
as it return from the syscall since the return adress will be
corrupted.This patch disable IRQ as soon as we enter the syscall path and
reenable them when the copy is done.In the interrupt handlers, check if we are interrupting the srrf
instruction, if so disable interrupts and return. The interrupt
handler will be re-called immediatly when the interrupts are
reenabled.After some stressing workload:
- find / > /dev/null in loop
- top (in ssh)
- ping -f avr32The segfaults are not seen anymore.
Signed-off-by: Philippe Rétornaz
Signed-off-by: Haavard Skinnemoen -
Make the NGW100 bitbang i2c use open drain signaling.
Also, speed it up, so it's closer to 100 kHz ... the code paths seem
to be long enough that the udelay isn't dominating bit times. The
peak bit rate I observed was around 125 kHz, but that's with large
delays (usually before ACK/NAK) which hold the overall rate down to
around 80 kHz (call it 100 usec/byte on average).Signed-off-by: David Brownell
Signed-off-by: Haavard Skinnemoen -
This patch makes the SMC configuration take timings in clock cycles
instead of nanoseconds. A function to calculate timings in clock
cycles is added.This patch removes the rounding troubles of the previous SMC
configuration method.[hskinnemoen@atmel.com: fix atstk1002/atngw100 flash config]
Signed-off-by: Kristoffer Nyborg Gregertsen
Signed-off-by: Haavard Skinnemoen -
Given the existing "retain_initrd" boot-time parameter defined in
init/initramfs.c, there appears to be no need for the equivalent
"keepinitrd" parameter.Signed-off-by: Robert P. J. Day
Signed-off-by: Haavard Skinnemoen -
__init_end, which comes immediately before .text, is already page
aligned, and that should be more than enough for the .text section.The reason why we need to align the .text section is because the
interrupt handler offset is ORed with EVBA, so we need to provide
enough alignment of EVBA that this OR operation works as an ADD.Currently, the last interrupt handler is not nearly a full page away
from EVBA, so it won't be a problem.Signed-off-by: Haavard Skinnemoen
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Use PAGE_SIZE, THREAD_SIZE and L1_CACHE_BYTES instead of harcoded
constants in places where that's what we really mean.Signed-off-by: Haavard Skinnemoen
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Rename vmlinux.lds to a .S file to match other architectures.
Simplify Makefile to match the rename and deleted the unused
USE_STANDARD_AS_RULESigned-off-by: Sam Ravnborg
Signed-off-by: Haavard Skinnemoen -
Signed-off-by: Matteo Vit - Dave S.r.l.
Signed-off-by: Haavard Skinnemoen -
Implement at32_add_device_usba() and use it to wire up the USBA device
on ATSTK1000 and ATNGW100.Signed-off-by: Haavard Skinnemoen
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This patch add multidrive support for pio driver
Signed-off-by: Matteo Vit - Dave S.r.l.
Signed-off-by: Haavard Skinnemoen -
When debugfs is available, /sys/kernel/debug/at32ap_clk will provide a
dump of the power manager registers and of the current clock tree. This
can help sorting out various surprises, and when making runtime PM work.Signed-off-by: David Brownell
Signed-off-by: Haavard Skinnemoen -
We don't want to redefine this in every file that needs to access
the PM.Signed-off-by: Haavard Skinnemoen
15 Aug, 2007
2 commits
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The NGW100 has a board controller which is hooked up to the TWI lines
on AP7000. Since the TWI driver isn't in mainline, use the i2c-gpio
driver in the mean time.Signed-off-by: Haavard Skinnemoen
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Add GPIO led support: J2 to either block of LEDs on the STK1000.
This uses the new LEDS_GPIO driver, and sets up a heartbeat trigger by
default ... either bright (!!) amber, or a more interesting purple.Signed-off-by: David Brownell
Signed-off-by: Haavard Skinnemoen
23 Jul, 2007
1 commit
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* 'for-linus' of git://git.o-hand.com/linux-rpurdie-leds:
leds: Convert from struct class_device to struct device
leds: leds-gpio for ngw100
leds: Add warning printks in error paths
leds: Fix trigger unregister_simple if register_simple fails
leds: Use menuconfig objects II - LED
leds: Teach leds-gpio to handle timer-unsafe GPIOs
leds: Add generic GPIO LED driver
20 Jul, 2007
1 commit
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This patch completes Linus's wish that the fault return codes be made into
bit flags, which I agree makes everything nicer. This requires requires
all handle_mm_fault callers to be modified (possibly the modifications
should go further and do things like fault accounting in handle_mm_fault --
however that would be for another patch).[akpm@linux-foundation.org: fix alpha build]
[akpm@linux-foundation.org: fix s390 build]
[akpm@linux-foundation.org: fix sparc build]
[akpm@linux-foundation.org: fix sparc64 build]
[akpm@linux-foundation.org: fix ia64 build]
Signed-off-by: Nick Piggin
Cc: Richard Henderson
Cc: Ivan Kokshaysky
Cc: Russell King
Cc: Ian Molton
Cc: Bryan Wu
Cc: Mikael Starvik
Cc: David Howells
Cc: Yoshinori Sato
Cc: "Luck, Tony"
Cc: Hirokazu Takata
Cc: Geert Uytterhoeven
Cc: Roman Zippel
Cc: Greg Ungerer
Cc: Matthew Wilcox
Cc: Paul Mackerras
Cc: Benjamin Herrenschmidt
Cc: Heiko Carstens
Cc: Martin Schwidefsky
Cc: Paul Mundt
Cc: Kazumoto Kojima
Cc: Richard Curnow
Cc: William Lee Irwin III
Cc: "David S. Miller"
Cc: Jeff Dike
Cc: Paolo 'Blaisorblade' Giarrusso
Cc: Miles Bader
Cc: Chris Zankel
Acked-by: Kyle McMartin
Acked-by: Haavard Skinnemoen
Acked-by: Ralf Baechle
Acked-by: Andi Kleen
Signed-off-by: Andrew Morton
[ Still apparently needs some ARM and PPC loving - Linus ]
Signed-off-by: Linus Torvalds
19 Jul, 2007
9 commits
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The STK1000 uses pullups on the MDIO lines to the PHY, but they are
too weak. This causes the PHY layer to detect PHYs on all possible MII
addresses. Mask out all but the correct address to prevent this from
happening.Signed-off-by: Haavard Skinnemoen
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Signed-off-by: Robert P. J. Day
Signed-off-by: Haavard Skinnemoen -
This code is inside an #ifdef with a misspelled config symbol, so it
hasn't been used for a long time. Fix it before fixing the config
symbol to keep bisection working.Signed-off-by: Haavard Skinnemoen
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If the user wants to sacrifice macb0 for more GPIOs, let him.
Signed-off-by: Haavard Skinnemoen
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Signed-off-by: Hans-Christian Egtvedt
Signed-off-by: Haavard Skinnemoen -
This patch adds register definitions, clocks and IRQs to the platform devices.
Signed-off-by: Hans-Christian Egtvedt
Signed-off-by: Haavard Skinnemoen -
This adds some STK1002-specific config options covering the jumper settings,
so the kernel can automatically be configured to include the relevant devices.One of them replaces the previous internal SW2_DEFAULT setting; SPI config
is affected by two of the jumpers; and a fourth one switches between LCD and
the second Ethernet connector. (There's more that to be done.)Signed-off-by: David Brownell
Signed-off-by: Haavard Skinnemoen -
This patch enables CPU frequency scaling for AT32AP devices. This will
enable the CPU to scale between the speed of the high speed bus and
the master clock and thus save some power.The patch also adds a parent to cpu_clk and a cpu_clk_set_rate to
enable changing the CPU clock divider in a sane way.The driver does not check if the given rate is 0, thus resulting in a
div by 0. I think this check should be go into the clk_set_rate
framework, and not here.Tested on AT32AP7000/ATSTK1000.
Hardware documentation can be found in the AT32AP7000 datasheet.
Signed-off-by: Hans-Christian Egtvedt
Signed-off-by: Haavard Skinnemoen -
Split the SM platform device into separate platform devices for PM,
RTC, WDT and EIC. This is more correct according to the documentation
and allows us to simplify the code a little.Also turn the EIC driver into a real platform driver.
Signed-off-by: Haavard Skinnemoen
Acked-by: Hans-Christian Egtvedt
18 Jul, 2007
3 commits
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Identical implementations of PTRACE_POKEDATA go into generic_ptrace_pokedata()
function.AFAICS, fix bug on xtensa where successful PTRACE_POKEDATA will nevertheless
return EPERM.Signed-off-by: Alexey Dobriyan
Cc: Christoph Hellwig
Cc:
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Identical implementations of PTRACE_PEEKDATA go into generic_ptrace_peekdata()
function.Signed-off-by: Alexey Dobriyan
Cc: Christoph Hellwig
Cc:
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
If the kernel OOPSed or BUGed then it probably should be considered as
tainted. Thus, all subsequent OOPSes and SysRq dumps will report the
tainted kernel. This saves a lot of time explaining oddities in the
calltraces.Signed-off-by: Pavel Emelianov
Acked-by: Randy Dunlap
Cc:
Signed-off-by: Andrew Morton
[ Added parisc patch from Matthew Wilson -Linus ]
Signed-off-by: Linus Torvalds
17 Jul, 2007
1 commit
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The current generic bug implementation has a call to dump_stack() in case a
WARN_ON(whatever) gets hit. Since report_bug(), which calls dump_stack(),
gets called from an exception handler we can do better: just pass the
pt_regs structure to report_bug() and pass it to show_regs() in case of a
warning. This will give more debug informations like register contents,
etc... In addition this avoids some pointless lines that dump_stack()
emits, since it includes a stack backtrace of the exception handler which
is of no interest in case of a warning. E.g. on s390 the following lines
are currently always present in a stack backtrace if dump_stack() gets
called from report_bug():[] show_trace+0x92/0xe8)
[] show_stack+0xa0/0xd0
[] dump_stack+0x2e/0x3c
[] report_bug+0x98/0xf8
[] illegal_op+0x1fc/0x21c
[] sysc_return+0x0/0x10Acked-by: Jeremy Fitzhardinge
Acked-by: Haavard Skinnemoen
Cc: Andi Kleen
Cc: Kyle McMartin
Cc: Paul Mackerras
Cc: Paul Mundt
Cc: Martin Schwidefsky
Signed-off-by: Heiko Carstens
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
16 Jul, 2007
1 commit
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Add GPIO leds to the NGW100 platform and its defconfig.
Access through /sys/class/leds/{a,b,sys}/* files; one
defaults to a heartbeat.Signed-off-by: David Brownell
Signed-off-by: Richard Purdie
23 Jun, 2007
3 commits
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Update defconfigs for ATNGW100 and ATSTK1002. This will enable the
SLUB allocator by default on both, and will enable NFS root on
ATSTK1002 (ATNGW100 had it enabled before.)Signed-off-by: Haavard Skinnemoen
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The current at32ap7000 platform devices aren't declared as supporting DMA,
so that layered drivers can't tell whether they need to manage DMA.This patch makes all those platform devices report that they support DMA.
Most do, but in a few cases this is inappropriate.Signed-off-by: David Brownell
Signed-off-by: Haavard Skinnemoen -
USART mapping used to be accomplished by the manual filling of
at32_usart_map[] and at32_nr_usarts. This has now been replaced
with at32_map_usart() so we can remove these variables.Signed-off-by: Ben Nizette
Signed-off-by: Haavard Skinnemoen
