| Commit message (Collapse) | Author | Age |
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Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
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Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
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show_stack() was calling kzalloc() to allocate a struct pt_regs.
This meant that *really* early stack dumps would cause a null pointer
dereference. x86_64 allocates its pt_regs on the stack, so do the same.
Kyle actually committed this exact patch to CVS on
Wed Jul 26 14:32:39 2006 UTC, and never moved it across to git.
Bad Kyle.
Signed-off-by: Matthew Wilcox <matthew@wil.cx>
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
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Al Viro did this for x86-64 and reduced the number of dependencies on
sched.h significantly. We had a couple of files which were relying on
uaccess.h pulling in sched.h, so they need explicit dependencies added.
Signed-off-by: Matthew Wilcox <matthew@wil.cx>
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
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No changes in functionality.
Signed-off-by: Randolph Chung <tausq@debian.org>
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
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Conflicts:
arch/parisc/hpux/sys_hpux.c
arch/parisc/mm/ioremap.c
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Need to remove the initializer as well. Doh.
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
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Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
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Signed-off-by: Grant Grundler <grundler@parisc-linux.org>
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
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Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
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Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
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Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
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0/NULL changes, __user annotations, __iomem annotations
Signed-off-by: Matthew Wilcox <matthew@wil.cx>
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
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0/NULL, missing __user, missing __iomem, non-ANSI prototype.
Signed-off-by: Matthew Wilcox <willy@parisc-linux.org>
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
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The `simple' way of walking and checking PageReserved is broken on
discontigmem, instead we need to check each range explicitly.
(Also rename a few things so they make more sense.)
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
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Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
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I deleted this file from 2.4 5 years ago. Unfortunately, that change
never got merged to Linus and so when we switched to 2.5 it came back
and nobody noticed. It's never been built in 2.5/2.6 as it was never
in the Makefile.
Signed-off-by: Matthew Wilcox <matthew@wil.cx>
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
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When calling into the EFI firmware, the parameters need to be passed on
the stack. The recent change to use -mregparm=3 breaks x86 EFI support.
This patch is needed to allow the new Intel-based Macs to suspend to ram
(efi.get_time is called during the suspend phase).
Signed-off-by: Frederic Riss <frederic.riss@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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The SN Altix platform does not conform to the IOSAPIC IRQ routing model.
Add code in acpi_unregister_gsi() to check if (acpi_irq_model ==
ACPI_IRQ_MODEL_PLATFORM) and return.
Due to an oversight, this code was not added previously when
similar code was added to acpi_register_gsi().
http://marc.theaimsgroup.com/?l=linux-acpi&m=116680983430121&w=2
Signed-off-by: John Keller <jpk@sgi.com>
Acked-by: Len Brown <lenb@kernel.org>
Cc: "Luck, Tony" <tony.luck@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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This patch fixes up ia64 kexec support for HP rx2620 hardware. It does
this by skipping migration of already disabled irqs. This is most likely a
problem on other ia64 platforms as well, but I've only been able to
reproduce it on one machine so far.
The full story is that handle_bad_irq() gets invoked before starting the
new kernel without this patch. This seems to happen when fixup_irqs()
calls generic_handle_irq() on already migrated (and disabled) irqs. So by
avoiding migration of disabled irqs we stay away of handle_bad_irq().
The code has been tested on three different ia64 machines, all with good
results. It is possible to trigger the same bug by offlining a processor
using echo 0 > /sys/devices/system/cpu/cpuX/online.
More detailed information is available in the following mail thread:
http://lists.osdl.org/pipermail/fastboot/2007-January/thread.html#5774
Signed-off-by: Magnus Damm <magnus@valinux.co.jp>
Acked-by: Simon Horman <horms@verge.net.au>
Acked-by: Zou, Nanhai <nanhai.zou@intel.com>
Acked-by: Jay Lan <jlan@sgi.com>
Acked-by: "Luck, Tony" <tony.luck@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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This reverts commit e4f0ae0ea63caceff37a13f281a72652b7ea71ba.
It's not wrong, but it's not right either, and everybody seems to agree
that the right fix is probably to do the ccr3 write after the ccr4 one
(and that we also should clean it up a bit). And after that we need to
really validate that all the bits that we write to ccr4 actually do
work.
The old 2.6.19 code was insane, and basically didn't change ccr4 at all
(even though it certainly looks like it was the *intent* to do so). So
let's revert the change that may fix things, just because it's not what
was actually ever tested when the code was written, even if it _was_ the
intent.
There's a discussion on http://lkml.org/lkml/2007/1/9/63 that was
started by the patch that now gets reverted, and that discussion may
well contain the proper long-term fix.
Suggested-by: Adrian Bunk <bunk@stusta.de>
Acked-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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a) sun4d_boot_one_cpu() should be __cpuinit (called only from
__cpuinit __cpu_up(), for one thing, leads to calls of __cpuinit
functions for another).
b) got externs in arch/sparc/kernel/smp.c to match reality.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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i386 boot/compressed/relocs checks for absolute symbols and warns about
unexpected ones. If you build with modversions, you get ~2500 warnings
about __crc_<symbol>. These suckers are really absolute symbols - we
do _not_ want to modify them on relocation.
They are generated by genksyms - EXPORT_... generates a weak alias, then
genksyms produces an ld script with __crc_<symbol> = <checksum> and it's
fed to ld to produce the final object file. Their only use is to match
kernel and module at modprobe time; they _must_ be absolute.
boot/compressed/relocs has a whitelist of known absolute symbols, but
it doesn't know about __crc_... stuff. As the result, we get shitloads
of false positives on any ld(1) version.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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... and having it __init is a bad idea.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Use the same signal frame alignment calculations as the underlying
architecture. x86_64 appeared to do this, but the "- 8" was really
subtracting 8 * sizeof(struct rt_sigframe) rather than 8 bytes.
UML/i386 might have been OK, but I changed the calculation to match
i386 just to be sure.
Signed-off-by: Jeff Dike <jdike@addtoit.com>
Cc: <stable@kernel.org>
Cc: Adrian Bunk <bunk@stusta.de>
Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Acked-by: Antoine Martin <antoine@nagafix.co.uk>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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* master.kernel.org:/pub/scm/linux/kernel/git/davej/cpufreq:
[CPUFREQ] Remove unneeded errata workaround from p4-clockmod.
[CPUFREQ] check sysfs_create_link return value
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This workaround unnecessarily cripples functionality to work
around an errata that doesn't seem possible to hit due to
us using the automatic clock throttling in the p4 mcheck code.
See http://lkml.org/lkml/2006/10/28/148 for complete reasoning
and lack of disconsent.
Signed-off-by: Dave Jones <davej@redhat.com>
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Kconfig recognizes the end of help text by receding indentation depth.
Recent patch had broken HOST_VMSPLIT_... choice in arch/um/Kconfig.i386 -
all alternatives are interpreted as part of help text now.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus:
[MIPS] Fix typo of "CONFIG_MT_SMP".
[MIPS] Ocelot G: Fix a few misspellings of CONFIG_GALILEO_GT64240_ETH
[PATCH] Malta: Fix build if CONFIG_MTD is diabled.
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Signed-off-by: Robert P. J. Day <rpjday@mindspring.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Reported by Robert P. J. Day <rpjday@mindspring.com>.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Signed-off-by: Jan Altenberg <jan@linutronix.de>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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When the world was a simple and static place setting up irqs was easy.
It sufficed to allocate a linux irq number and a find a free cpu
vector we could receive that linux irq on. In those days it was
a safe assumption that any allocated vector was actually in use
so after one global pass through all of the vectors we would have
none left.
These days things are much more dynamic with interrupt controllers
(in the form of MSI or MSI-X) appearing on plug in cards and linux
irqs appearing and disappearing. As these irqs come and go vectors
are allocated and freed, invalidating the ancient assumption that all
allocated vectors stayed in use forever.
So this patch modifies the vector allocator to walk through every
possible vector before giving up, and to check to see if a vector
is in use before assigning it. With these changes we stop leaking
freed vectors and it becomes possible to allocate and free irq vectors
all day long.
This changed was modeled after the vector allocator on x86_64 where
this limitation has already been removed. In essence we don't update
the static variables that hold the position of the last vector we
allocated until have successfully allocated another vector. This
allows us to detect if we have completed one complete scan through
all of the possible vectors.
Acked-by: Auke Kok <auke-jan.h.kok@intel.com>
Signed-off-by: Eric W. Biederman <ebiederm@xmission.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] 4117/1: S3C2412: Fix writel() usage in selection code
[ARM] 4111/1: Allow VFP to work with thread migration on SMP
[ARM] 4112/1: Only ioremap to supersections if DOMAIN_IO is zero
[ARM] 4106/1: S3C2410: typo fixes in register definitions
[ARM] 4102/1: Allow for PHYS_OFFSET on any valid 2MiB address
[ARM] Fix AMBA serial drivers for non-first serial ports
[ARM] 4100/1: iop3xx: fix cpu mask for iop333
[ARM] Update mach-types
[ARM] Fix show_mem() for discontigmem
[ARM] 4096/1: S3C24XX: change return code form s3c2410_gpio_getcfg()
[ARM] 4095/1: S3C24XX: Fix GPIO set for Bank A
[ARM] 4092/1: i.MX/MX1 CPU Frequency scaling latency definition
[ARM] 4089/1: AT91: GPIO wake IRQ cleanup
[ARM] 4088/1: AT91: Unbalanced IRQ in serial driver suspend/resume
[ARM] 4087/1: AT91: CPU reset for SAM9x processors
[ARM] 4086/1: AT91: Whitespace cleanup
[ARM] 4085/1: AT91: Header fixes.
[ARM] 4084/1: Remove CONFIG_DEBUG_WAITQ
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The S3C2412 DMA selection code has the
arguments to writel() the wrong way around.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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The current lazy saving of the VFP registers is no longer possible
with thread migration on SMP. This patch implements a per-CPU
vfp-state pointer and the saving of the VFP registers at every context
switch. The registers restoring is still performed in a lazy way.
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Supersections do not have a field for the domain and it is always
0. This patch prevents the creation of supersections during ioremap
when DOMAIN_IO is not zero (i.e. !defined(CONFIG_IO_36)).
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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This patchs allows the offset to the first page of
physical memory to be on any 2MB boundary
whereas the previous code could only handle psysical
offset to any 16MB boundary (0xNN000000) or any 1MB
boundary below 0x01000000 (e.g. 0x00N00000). The
problem is a consequence of the orr one-byte syntax,
so we fix this and we can place the first bank of
memory at 0x28e00000. I have also included an explicit
check that disallow compilation when PHYS_OFFSET is
not on a 2MiB boundary. head.S would be the proper place
to have this at since this is the first file that
attempts to use PHYS_OFFSET during compile.
Signed-off-by: Linus Walleij <triad@df.lth.se>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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cosmetic fix so iop333 is not reported as ixp46x
iop333 cpuid = 0x69054210
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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show_mem() was assuming incorrectly that the mem_map for any
node started at PFN 0. This is obviously wrong; fix it to
take account of node_start_pfn.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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The s3c2410_gpio_getcfg() currently returns
a value which is dependant on the GPIO no
passed in. Now we have more generic constants
it is sensible to use those as return codes
so that any function dealing with >1 GPIO
does not need to do it's own number processing.
Since this function is only currently used in
pm.c, it is easy to fixup (and correct pm.c
to use the generic constants)
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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GPIO bank A can only be output or a special
function, and the regs-gpio.h header has
mistakenly got this as input or output.
The mistake is carried on into the gpio.c
s3c2410_gpio_cfgpin() call which will set the
wrong value if S3C2410_GPIO_OUTPUT is passed.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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The transition latency has to be defined and reasonably
small to allow on-demand and conservative governors.
The value has been defined according to manual.
The imx_set_target() protected against seen out of range
requests now.
Signed-off-by: Pavel Pisa <pisa@cmp.felk.cvut.cz>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Cleanup of at91 platform level gpio wake and suspend/resume logic.
The GPIO core now delegates wakeups to the parent AIC by refcounting,
and delegates clock management to the clock API. This makes these
system modules more independent of each other, which is cleaner and will
also help with the AT91SAM9263 (where some GPIO controllers share the
same irq and clock).
Original patch by David Brownell.
Signed-off-by: Andrew Victor <andrew@sanpeople.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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This patch implements CPU and peripheral reset on AT91SAM9260 and
AT91SAM9261.
Original patch from Wojtek Kaniewski.
Signed-off-by: Andrew Victor <andrew@sanpeople.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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A couple of whitespace cleanups, mainly in the AT91 header files.
Signed-off-by: Andrew Victor <andrew@sanpeople.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Remove the legacy CONFIG_DEBUG_WAITQ from the SAM9260-EK and SAM9261-EK
default configuration files.
Signed-off-by: Andrew Victor <andrew@sanpeople.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc
* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc:
[POWERPC] Fix sys_pciconfig_iobase bus matching
[POWERPC] PS3: add not complete comment to kconfig
[POWERPC] ps3_free_io_irq: Fix inverted error check
[POWERPC] PS3: Fix uniprocessor kernel build
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