Age | Commit message (Collapse) | Author |
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Those functions are way too big to be inline, besides, kmap_atomic()
wants to call debug_kmap_atomic() which isn't exported for modules
and causes module link failures.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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Since we can use kmalloc earlier we are getting the following since the
mpic_alloc() code calls alloc_bootmem(). Move to using kzalloc() to
remove the warning.
------------[ cut here ]------------
Badness at c0583248 [verbose debug info unavailable]
NIP: c0583248 LR: c0583210 CTR: 00000004
REGS: c0741de0 TRAP: 0700 Not tainted (2.6.30-06736-g12a31df)
MSR: 00021000 <ME,CE> CR: 22024024 XER: 00000000
TASK = c070d3b8[0] 'swapper' THREAD: c0740000 CPU: 0
<6>GPR00: 00000001 c0741e90 c070d3b8 00000001 00000210 00000020 3fffffff 00000000
<6>GPR08: 00000000 c0c85700 c04f8c40 0000002d 22044022 1004a388 7ffd9400 00000000
<6>GPR16: 00000000 7ffcd100 7ffcd100 7ffcd100 c04f8c40 00000000 c059f62c c075a0c0
<6>GPR24: c059f648 00000000 0000000f 00000210 00000020 00000000 3fffffff 00000210
NIP [c0583248] alloc_arch_preferred_bootmem+0x50/0x80
LR [c0583210] alloc_arch_preferred_bootmem+0x18/0x80
Call Trace:
[c0741e90] [c07343b0] devtree_lock+0x0/0x24 (unreliable)
[c0741ea0] [c0583b14] ___alloc_bootmem_nopanic+0x54/0x108
[c0741ee0] [c0583e18] ___alloc_bootmem+0x18/0x50
[c0741ef0] [c057b9cc] mpic_alloc+0x48/0x710
[c0741f40] [c057ecf4] mpc85xx_ds_pic_init+0x190/0x1b8
[c0741f90] [c057633c] init_IRQ+0x24/0x34
[c0741fa0] [c05738b8] start_kernel+0x260/0x3dc
[c0741ff0] [c00003c8] skpinv+0x2e0/0x31c
Instruction dump:
409e001c 7c030378 80010014 83e1000c 38210010 7c0803a6 4e800020 3d20c0c8
39295700 80090004 7c000034 5400d97e <0f000000> 2f800000 409e001c 38800000
BenH: Changed to use GFP_KERNEL, the allocator will do the right thing
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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For some reason we've had an explicit KERN_INFO for GPR dumps. With
recent changes we get output like:
<6>GPR00: 00000000 ef855eb0 ef858000 00000001 000000d0 f1000000 ffbc8000 ffffffff
The KERN_INFO is causing the <6>. Don't see any reason to keep it
around.
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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The old PowerSurge SMP (ie, dual or quad 604 machines) code has
numerous issues in modern world.
One is cpu_possible_map is set too late (the device-tree is bogus)
so we fail to allocate the interrupt stacks and crash. Another
problem is the fact the timebase is frozen by the bringup of the
second CPU so the delays in the generic code will hang, we need
to move some of the calling procedure to inside the powermac code.
This makes it boot again for me
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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The kernel reserves the I/O address space from 0x0 to 0xfff for legacy
ISA devices. Change the ranges property for the PCI2ISA bridge to match
the kernels behavior, even if the ranges property isn't used for now.
Signed-off-by: Gerhard Pircher <gerhard_pircher@gmx.net>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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A change to the i2c subsystem breaks the warp platform code. The patch
is cleaner anyway, the old way was a bit crufty.
For those with keen eyes, the gratuitous change in the string from
PIKA to Warp is just so the logs look a bit nicer. The following two
lines tend to be printed one after another.
Warp POST OK
Warp DTM thread running.
Yeah, this will be the third patch to warp.c submitted in this
release....
Cheers,
Sean
The i2c_client struct changed, breaking the code that looked for the ad7414
chip. Use the new of_find_i2c_device_by_node function added in 2.6.29.
Signed-off-by: Sean MacLennan <smaclennan@pikatech.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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Have git ignore generated files from dtc compile
Signed-off-by: Jon Smirl <jonsmirl@gmail.com>
Acked-by: David Gibson <david@gibson.dropbear.id.au>
Acked-by: Sean MacLennan <smaclennan@pikatech.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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Commit 31207dab7d2e63795eb15823947bd2f7025b08e2
"Fix incorrect allocation of interrupt rev-map"
introduced a regression crashing on boot on machines using
a "DCR" based MPIC, such as the Cell blades.
The reason is that the irq host data structure is initialized
much later as a result of that patch, causing our calls to
mpic_map() do be done before we have a host setup.
Unfortunately, this breaks _mpic_map_dcr() which uses the
mpic->irqhost to get to the device node.
This fixes it by, instead, passing the device node explicitely
to mpic_map().
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Acked-by: Akira Tsukamoto <akirat@rd.scei.sony.co.jp>
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Turning on SWIOTLB selects or enables PPC_NEED_DMA_SYNC_OPS, which means
we get the non empty versions of dma_sync_* in asm/dma-mapping.h
On my pseries machine the dma_ops have no such routines and we die with
a null pointer - this patch gets it booting, is there a more elegant way
to do it?
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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The tftpboot build was failing with missing file errors.
It turns out that $(obj)/image wasn't being generated which was causing the a.out conversion to be skipped and hence piggyback to be called with nonexistent files.
Signed-off-by: Julian Calaby <julian.calaby@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Signed-off-by: Julian Calaby <julian.calaby@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Kjetil Oftedal mentioned that piggyback_32 was failing
when building a sparc image.
I tracked this down to the fact that the kernel no longer
provided an absolute symbol named "end".
Commit 86ed40bd6fe511d26bb8f3fa65a84cb65c235366 ("sparc: unify sections.h")
renamed end to _end but failed to update piggyback_32.
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Cc: Kjetil Oftedal <oftedal@gmail.com>
Cc: Robert Reif <reif@earthlink.net>
Signed-off-by: Julian Calaby <julian.calaby@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Signed-off-by: Robert Reif <reif@earthlink.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch fixes the following build warnings:
arch/sparc/boot/piggyback_64.c: In function 'main':
arch/sparc/boot/piggyback_64.c:44: warning: 'end' may be used uninitialized in this function
arch/sparc/boot/piggyback_64.c:44: warning: 'start' may be used uninitialized in this function
Signed-off-by: Julian Calaby <julian.calaby@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The page allocator and SLAB are available at this point now,
and if we still try to use bootmem allocations here the kernel
spits out warnings.
Signed-off-by: David S. Miller <davem@davemloft.net>
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delay_tsc needs rdtsc_barrier to provide proper delay.
Output from a test driver using hpet to cross check delay
provided by udelay().
Before:
[ 86.794363] Expected delay 5us actual 4679ns
[ 87.154362] Expected delay 5us actual 698ns
[ 87.514162] Expected delay 5us actual 4539ns
[ 88.653716] Expected delay 5us actual 4539ns
[ 94.664106] Expected delay 10us actual 9638ns
[ 95.049351] Expected delay 10us actual 10126ns
[ 95.416110] Expected delay 10us actual 9568ns
[ 95.799216] Expected delay 10us actual 9638ns
[ 103.624104] Expected delay 10us actual 9707ns
[ 104.020619] Expected delay 10us actual 768ns
[ 104.419951] Expected delay 10us actual 9707ns
After:
[ 50.983320] Expected delay 5us actual 5587ns
[ 51.261807] Expected delay 5us actual 5587ns
[ 51.565715] Expected delay 5us actual 5657ns
[ 51.861171] Expected delay 5us actual 5587ns
[ 52.164704] Expected delay 5us actual 5726ns
[ 52.487457] Expected delay 5us actual 5657ns
[ 52.789338] Expected delay 5us actual 5726ns
[ 57.119680] Expected delay 10us actual 10755ns
[ 57.893997] Expected delay 10us actual 10615ns
[ 58.261287] Expected delay 10us actual 10755ns
[ 58.620505] Expected delay 10us actual 10825ns
[ 58.941035] Expected delay 10us actual 10755ns
[ 59.320903] Expected delay 10us actual 10615ns
[ 61.306311] Expected delay 10us actual 10755ns
[ 61.520542] Expected delay 10us actual 10615ns
Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
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<asm/boot.h> needs <asm/pgtable_types.h>, not <asm/page_types.h> in
order to resolve PMD_SHIFT. Also, correct a +1 which really should be
+ THREAD_ORDER.
This is a build error which was masked by a typoed #ifdef.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
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CONFIG_X86_64 was misspelled (wrong case), which caused the x86-64
kernel to advertise itself as more relocatable than it really is.
This could in theory cause boot failures once bootloaders start
support the new relocation fields.
Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
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If CONFIG_NO_HZ + CONFIG_SMP, timer added via add_timer() might
be migrated on other cpu. Use add_timer_on() instead.
Avoids the following failure:
Maciej Rutecki wrote:
> > After normal boot I try:
> >
> > echo 1 > /sys/devices/system/machinecheck/machinecheck0/check_interval
> >
> > I found this in dmesg:
> >
> > [ 141.704025] ------------[ cut here ]------------
> > [ 141.704039] WARNING: at arch/x86/kernel/cpu/mcheck/mce.c:1102
> > mcheck_timer+0xf5/0x100()
Reported-by: Maciej Rutecki <maciej.rutecki@gmail.com>
Signed-off-by: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com>
Tested-by: Maciej Rutecki <maciej.rutecki@gmail.com>
Acked-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
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This patch introduces a new sysctl:
/proc/sys/kernel/panic_on_io_nmi
which defaults to 0 (off).
When enabled, the kernel panics when the kernel receives an NMI
caused by an IO error.
The IO error triggered NMI indicates a serious system
condition, which could result in IO data corruption. Rather
than contiuing, panicing and dumping might be a better choice,
so one can figure out what's causing the IO error.
This could be especially important to companies running IO
intensive applications where corruption must be avoided, e.g. a
bank's databases.
[ SuSE has been shipping it for a while, it was done at the
request of a large database vendor, for their users. ]
Signed-off-by: Kurt Garloff <garloff@suse.de>
Signed-off-by: Roberto Angelino <robertangelino@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
LKML-Reference: <20090624213211.GA11291@kroah.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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Update the mmap control page with the needed information to
use the userspace RDPMC instruction for self monitoring.
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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UML: Fix some apparent bitrot
- migration of net_device methods into net_device_ops
- dma_sync_single() changes
Signed-off-by: Paul Menage <menage@google.com>
Acked-by: Amerigo Wang <xiyou.wangcong@gmail.com>
--
This version is split from my earlier patch, including just the
portions that ar required for Linus' tree.
Fixes the following compile errors:
include/linux/dma-mapping.h:113: error: redefinition of 'dma_sync_single'
arch/um/include/asm/dma-mapping.h:84: error: previous definition of 'dma_sync_single' was here
include/linux/dma-mapping.h: In function 'dma_sync_single':
include/linux/dma-mapping.h:117: error: implicit declaration of function 'dma_sync_single_for_cpu'
include/linux/dma-mapping.h: At top level:
include/linux/dma-mapping.h:120: error: redefinition of 'dma_sync_sg'
arch/um/include/asm/dma-mapping.h:91: error: previous definition of 'dma_sync_sg' was here
include/linux/dma-mapping.h: In function 'dma_sync_sg':
include/linux/dma-mapping.h:124: error: implicit declaration of function 'dma_sync_sg_for_cpu'
arch/um/drivers/slirp_kern.c: In function 'slirp_init':
arch/um/drivers/slirp_kern.c:35: error: 'struct net_device' has no member named 'init'
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Update the link script for ARM to use PAGE_SIZE instead of hard-
coded 4096. Also the old RODATA macro is deprecated
for the RO_DATA(PAGE_SIZE) macro. As a consequence the PAGE_SIZE
was changed from (1UL << PAGE_SHIFT) to (_AC(1,UL) << PAGE_SHIFT)
because the linker does not understand the "UL" suffix to numeric
constants.
Signed-off-by: Linus Walleij <linus.walleij@stericsson.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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handle_bad_irq() expects the IRQ number to be valid (used for statistics),
so it cannot be called with an illegal vector. The problem was reported
by a static analysis tool.
The change makes bad_irq_desc redundant, so delete it.
Signed-off-by: Aaro Koskinen <aaro.koskinen@nokia.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/tmlind/linux-omap-2.6
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This was killed off in generic code some time ago, kill off the left over
symbol.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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This reverts commit 9e9f46c44e487af0a82eb61b624553e2f7118f5b.
Quoting from the commit message:
"At this point, it seems to solve more problems than it causes, so let's
try using it by default. It's an easy revert if it ends up causing
trouble."
And guess what? The _CRS code causes trouble.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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sh64 can use these as well, so tie them up there as well.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus:
Staging: octeon-ethernet: Fix race freeing transmit buffers.
Staging: octeon-ethernet: Convert to use net_device_ops.
MIPS: Cavium: Add CPU hotplugging code.
MIPS: SMP: Allow suspend and hibernation if CPU hotplug is available
MIPS: Add arch generic CPU hotplug
DMA: txx9dmac: use dma_unmap_single if DMA_COMPL_{SRC,DEST}_UNMAP_SINGLE set
MIPS: Sibyte: Fix build error if CONFIG_SERIAL_SB1250_DUART is undefined.
MIPS: MIPSsim: Fix build error if MSC01E_INT_BASE is undefined.
MIPS: Hibernation: Remove SMP TLB and cacheflushing code.
MIPS: Build fix - include <linux/smp.h> into all smp_processor_id() users.
MIPS: bug.h Build fix - include <linux/compiler.h>.
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Thanks to Cavium Inc. for the code contribution and help.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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The SMP implementation of suspend and hibernate depends on CPU hotplugging.
In the past we didn't have CPU hotplug so suspend and hibernation were not
possible on SMP systems.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Each platform has to add support for CPU hotplugging itself by providing
suitable definitions for the cpu_disable and cpu_die of the smp_ops
methods and setting SYS_SUPPORTS_HOTPLUG_CPU. A platform should only set
SYS_SUPPORTS_HOTPLUG_CPU once all it's smp_ops definitions have the
necessary changes. This patch contains the changes to the dummy smp_ops
definition for uni-processor systems.
Parts of the code contributed by Cavium Inc.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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This fixes kernel.org bugzilla 13596, see
http://bugzilla.kernel.org/show_bug.cgi?id=13596
Reported-by: dvice_null@yahoo.com
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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This fixes kernel.org bugzilla 13595, see
http://bugzilla.kernel.org/show_bug.cgi?id=13595
Reported-by: dvice_null@yahoo.com
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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We can't perform any flushes on SMP from swsusp_arch_resume because
interrupts are disabled. A cross-CPU flush is unnecessary anyway
because all but the local CPU have already been disabled. A local
flush is not needed either because we didn't change any mappings. So
just delete the code.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Some of the were relying into smp.h being dragged in by another header
which of course is fragile. <asm/cpu-info.h> uses smp_processor_id()
only in macros and including smp.h there leads to an include loop, so
don't change cpu-info.h.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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In the past this file somehow used to be dragged in.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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This adds page fault instrumentation for the software performance
counters. Follows the x86 and powerpc changes.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6: (72 commits)
asus-laptop: remove EXPERIMENTAL dependency
asus-laptop: use pr_fmt and pr_<level>
eeepc-laptop: cpufv updates
eeepc-laptop: sync eeepc-laptop with asus_acpi
asus_acpi: Deprecate in favor of asus-laptop
acpi4asus: update MAINTAINER and KConfig links
asus-laptop: platform dev as parent for led and backlight
eeepc-laptop: enable camera by default
ACPI: Rename ACPI processor device bus ID
acerhdf: Acer Aspire One fan control
ACPI: video: DMI workaround broken Acer 7720 BIOS enabling display brightness
ACPI: run ACPI device hot removal in kacpi_hotplug_wq
ACPI: Add the reference count to avoid unloading ACPI video bus twice
ACPI: DMI to disable Vista compatibility on some Sony laptops
ACPI: fix a deadlock in hotplug case
Show the physical device node of backlight class device.
ACPI: pdc init related memory leak with physical CPU hotplug
ACPI: pci_root: remove unused dev/fn information
ACPI: pci_root: simplify list traversals
ACPI: pci_root: use driver data rather than list lookup
...
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The initialization of the UV Broadcast Assist Unit's sending
buffers was making an invalid assumption about the
initialization of an MMR that defines its address.
The BIOS will not be providing that MMR. So
uv_activation_descriptor_init() should unconditionally set it.
Tested on UV simulator.
Signed-off-by: Cliff Wickman <cpw@sgi.com>
Cc: <stable@kernel.org> # for v2.6.30.x
LKML-Reference: <E1MJTfj-0005i1-W8@eag09.americas.sgi.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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Fixes up a recently introduced build error.
Reported-by: Kyle McMartin <kyle@mcmartin.ca>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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Previous code made an assumption that the power on value of global
control MSR has enabled all fixed and general purpose counters properly.
However, this is not the case for certain Intel processors, such as
Atom - and it might also be firmware dependent.
Each enable bit in IA32_PERF_GLOBAL_CTRL is AND'ed with the
enable bits for all privilege levels in the respective IA32_PERFEVTSELx
or IA32_PERF_FIXED_CTR_CTRL MSRs to start/stop the counting of
respective counters. Counting is enabled if the AND'ed results is true;
counting is disabled when the result is false.
The end result is that all fixed counters are always disabled on Atom
processors because the assumption is just invalid.
Fix this by not initializing the ctrl-mask out of the global MSR,
but setting it to perf_counter_mask.
Reported-by: Stephane Eranian <eranian@googlemail.com>
Signed-off-by: Yong Wang <yong.y.wang@intel.com>
Cc: Arjan van de Ven <arjan@infradead.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
LKML-Reference: <20090624021324.GA2788@ywang-moblin2.bj.intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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'bugzilla-12904', 'bugzilla-13121', 'bugzilla-13396', 'bugzilla-13533', 'bugzilla-13612', 'c3_lock', 'hid-cleanups', 'misc-2.6.31', 'pdc-leak-fix', 'pnpacpi', 'power_nocheck', 'thinkpad_acpi', 'video' and 'wmi' into release
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* git://git.infradead.org/iommu-2.6:
Intel-IOMMU, intr-remap: source-id checking
Intel-IOMMU, intr-remap: set the whole 128bits of irte when modify/free it
IOMMU Identity Mapping Support (drivers/pci/intel_iommu.c)
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This patch fixes two errors we get when building GTA02 kernel.
~ use_bbt is incorrect, we need flash_bbt.
~ We do not need .force_soft_ecc because we can unset
CONFIG_MTD_NAND_S3C2410_HWECC.
Signed-off-by: Nelson Castillo <arhuaco@freaks-unidos.net>
[ben-linux@fluff.org: updated patch description]
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
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To support domain-isolation usages, the platform hardware must be
capable of uniquely identifying the requestor (source-id) for each
interrupt message. Without source-id checking for interrupt remapping
, a rouge guest/VM with assigned devices can launch interrupt attacks
to bring down anothe guest/VM or the VMM itself.
This patch adds source-id checking for interrupt remapping, and then
really isolates interrupts for guests/VMs with assigned devices.
Because PCI subsystem is not initialized yet when set up IOAPIC
entries, use read_pci_config_byte to access PCI config space directly.
Signed-off-by: Weidong Han <weidong.han@intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
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Calling mcheck_init() on resume is required only with
CONFIG_X86_OLD_MCE=y.
Signed-off-by: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com>
Acked-by: Andi Kleen <andi@firstfloor.org>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
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Fix the incorrect "select" directives by dropping the "CONFIG_"
prefixes, and correcting the typo "H8S2768" to "H8S2678".
Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca>
Acked-by: Yoshinori Sato <ysato@users.sourceforge.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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* git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6:
sh: Fix up HAVE_PERF_COUNTERS typo.
sh: Fix up more dma-mapping fallout.
sh: SH7786 SMP support.
sh: Wire up the uncached fixmap on sh64 as well.
sh: Use local TLB flush in set_pte_phys().
sh: Provide cpu_idle_wait() to fix up cpuidle/SMP build.
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