14 Apr, 2009
2 commits
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…git/tip/linux-2.6-tip
* 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
x86: add linux kernel support for YMM state
x86: fix wrong section of pat_disable & make it static
x86: Fix section mismatches in mpparse
x86: fix set_fixmap to use phys_addr_t
x86: Document get_user_pages_fast()
x86, intr-remap: fix eoi for interrupt remapping without x2apic -
Atttempting to rid us of the problematic work_on_cpu(). Just use
smp_call_fuction_single() here.This repairs a 10% sysbench(oltp)+mysql regression which Mike reported,
due tocommit 6b44003e5ca66a3fffeb5bc90f40ada2c4340896
Author: Andrew Morton
Date: Thu Apr 9 09:50:37 2009 -0600work_on_cpu(): rewrite it to create a kernel thread on demand
It seems that the kernel calls these acpi-cpufreq functions at a quite
high frequency.Valdis Kletnieks also reports that this causes 70-90 forks per second on
his hardware.Cc: Valdis.Kletnieks@vt.edu
Cc: Rusty Russell
Cc: Venkatesh Pallipadi
Cc: Len Brown
Cc: Zhao Yakui
Acked-by: Dave Jones
Cc: Thomas Gleixner
Tested-by: Mike Galbraith
Cc: "Zhang, Yanmin"
Signed-off-by: Andrew Morton
Acked-by: Ingo Molnar
[ Made it use smp_call_function_many() instead of looping over cpu's
with smp_call_function_single() - Linus ]
Signed-off-by: Linus Torvalds
13 Apr, 2009
2 commits
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…/git/tip/linux-2.6-tip
* 'core-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
percpu: unbreak alpha percpu
mutex: have non-spinning mutexes on s390 by default -
* 'for-linus' of git://git.monstr.eu/linux-2.6-microblaze: (60 commits)
microblaze_v8: Add MAINTAINERS fragment
microblaze_v8: Uartlite for Microblaze
microblaze_v8: Makefiles for Microblaze cpu
microblaze_v8: Kconfig patches
microblaze_v8: Interrupt handling and timer support
microblaze_v8: syscalls.h
microblaze_v8: pci headers
microblaze_v8: Kbuild file
microblaze_v8: string.h thread_info.h
microblaze_v8: unistd.h
microblaze_v8: fcntl.h sockios.h ucontext.h
microblaze_v8: pool.h socket.h
microblaze_v8: device.h param.h topology.h
microblaze_v8: headers files entry.h current.h mman.h registers.h sembuf.h
microblaze_v8: namei.h
microblaze_v8: gpio.h, serial.h
microblaze_v8: headers simple files - empty or redirect to asm-generic
microblaze_v8: sigcontext.h siginfo.h
microblaze_v8: termbits.h termios.h
microblaze_v8: stats headers
...
12 Apr, 2009
3 commits
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Impact: save/restore Intel-AVX state properly between tasks
Intel Advanced Vector Extensions (AVX) introduce 256-bit vector processing
capability. More about AVX at http://software.intel.com/sites/avxAdd OS support for YMM state management using xsave/xrstor infrastructure
to support AVX.Signed-off-by: Suresh Siddha
LKML-Reference:
Signed-off-by: Ingo Molnar -
pat_disable cannot be __cpuinit anymore because it's called from pat_init
and the callchain looks like this:
pat_disable [cpuinit]
Acked-by: Sam Ravnborg
LKML-Reference:
Signed-off-by: Ingo Molnar -
Impact: fix section mismatch
In arch/x86/kernel/mpparse.c, smp_reserve_bootmem() has been called
and also refers to a function which is in .init section. Thus causes
the first warning. And check_irq_src() also requires an __init,
because it refers to an .init section.Signed-off-by: Rakib Mullick
Cc: Andrew Morton
LKML-Reference:
Signed-off-by: Ingo Molnar
11 Apr, 2009
2 commits
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Impact: fix kprobes crash on 32-bit with RAM above 4G
Use phys_addr_t for receiving a physical address argument
instead of unsigned long. This allows fixmap to handle
pages higher than 4GB on x86-32.Signed-off-by: Masami Hiramatsu
Acked-by: Mathieu Desnoyers
Cc: Andrew Morton
Cc: Ananth N Mavinakayanahalli
Cc: systemtap-ml
Cc: Gary Hade
Cc: Linus Torvalds
LKML-Reference:
Signed-off-by: Ingo Molnar -
* git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-2.6-mn10300:
Separate out the proc- and unit-specific header directories from the general
Move arch headers from include/asm-mn10300/ to arch/mn10300/include/asm/.
10 Apr, 2009
12 commits
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* git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-2.6-frv:
FRV: Move to arch/frv/include/asm/
FRV: Fix indentation errors to keep git-am happy when moving arch header files -
MN10300 arch headers and place them instead in the same directories as contain
the .c files for the processor and unit implementations.This permits the symlinks include/asm/proc and include/asm/unit to be
dispensed with. This does, however, require that #include be
converted to #include and similarly for asm/unit -> unit.Signed-off-by: David Howells
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Signed-off-by: David Howells
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While better than get_user_pages(), the usage of gupf(),
especially the return values and the fact that it can
potentially only partially pin the range, warranted some
documentation.Signed-off-by: Andy Grover
Cc: npiggin@suse.de
Cc: akpm@linux-foundation.org
LKML-Reference:
Signed-off-by: Ingo Molnar -
To simplify level irq migration in the presence of interrupt-remapping,
Suresh used a virtual vector (io-apic pin number) to eliminate io-apic
RTE modification. Level triggered interrupt will appear as an edge to
the local apic cpu but still as level to the IO-APIC. So in addition to
do the local apic EOI, it still needs to do IO-APIC directed EOI to clear
the remote IRR bit in the IO-APIC RTE. Pls refer to Suresh's patch for
more details (commit 0280f7c416c652a2fd95d166f52b199ae61122c0).Now interrupt remapping is decoupled from x2apic, it also needs to do the
directed EOI for apic. Otherwise, apic interrupts won't work correctly.Signed-off-by: Weidong Han
Cc: iommu@lists.linux-foundation.org
Cc: Weidong Han
Cc: suresh.b.siddha@intel.com
Cc: dwmw2@infradead.org
Cc: allen.m.kay@intel.com
LKML-Reference:
Signed-off-by: Ingo Molnar -
Move arch headers from include/asm-frv/ to arch/frv/include/asm/.
Signed-off-by: David Howells
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Use phys_addr_t for receiving a physical address argument instead of
unsigned long. This allows fixmap to handle pages higher than 4GB on
x86-32.Signed-off-by: Masami Hiramatsu
Cc: Ingo Molnar
Acked-by: Mathieu Desnoyers
Signed-off-by: Linus Torvalds -
Kill MN10300's own profiling Kconfig as this is superfluous given that the
profiling options have moved to init/Kconfig and arch/Kconfig. Not only is
this now superfluous, but the dependencies are not correct.Signed-off-by: David Howells
Signed-off-by: Linus Torvalds -
…git/tip/linux-2.6-tip
* 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
x86: cpu_debug remove execute permission
x86: smarten /proc/interrupts output for new counters
x86: DMI match for the Dell DXP061 as it needs BIOS reboot
x86: make 64 bit to use default_inquire_remote_apic
x86, setup: un-resequence mode setting for VGA 80x34 and 80x60 modes
x86, intel-iommu: fix X2APIC && !ACPI build failure -
…nel/git/tip/linux-2.6-tip
* 'tracing-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
tracing: consolidate documents
blktrace: pass the right pointer to kfree()
tracing/syscalls: use a dedicated file header
tracing: append a comma to INIT_FTRACE_GRAPH -
Convert the last remaining users to no_irq_chip.
Signed-off-by: Thomas Gleixner
Signed-off-by: David Howells
Signed-off-by: Linus Torvalds -
Impact: performance regression fix for s390
The adaptive spinning mutexes will not always do what one would expect on
virtualized architectures like s390. Especially the cpu_relax() loop in
mutex_spin_on_owner might hurt if the mutex holding cpu has been scheduled
away by the hypervisor.We would end up in a cpu_relax() loop when there is no chance that the
state of the mutex changes until the target cpu has been scheduled again by
the hypervisor.For that reason we should change the default behaviour to no-spin on s390.
We do have an instruction which allows to yield the current cpu in favour of
a different target cpu. Also we have an instruction which allows us to figure
out if the target cpu is physically backed.However we need to do some performance tests until we can come up with
a solution that will do the right thing on s390.Signed-off-by: Heiko Carstens
Acked-by: Peter Zijlstra
Cc: Martin Schwidefsky
Cc: Christian Borntraeger
LKML-Reference:
Signed-off-by: Ingo Molnar
09 Apr, 2009
11 commits
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It seems by mistake these files got execute permissions so removing it.
Signed-off-by: Jaswinder Singh Rajput
LKML-Reference:
Signed-off-by: Ingo Molnar -
Impact: fix build warnings and possibe compat misbehavior on IA64
Building a kernel on ia64 might trigger these ugly build warnings:
CC arch/ia64/ia32/sys_ia32.o
In file included from arch/ia64/ia32/sys_ia32.c:55:
arch/ia64/ia32/ia32priv.h:290:1: warning: "elf_check_arch" redefined
In file included from include/linux/elf.h:7,
from include/linux/module.h:14,
from include/linux/ftrace.h:8,
from include/linux/syscalls.h:68,
from arch/ia64/ia32/sys_ia32.c:18:
arch/ia64/include/asm/elf.h:19:1: warning: this is the location of the previous definition
[...]sys_ia32.c includes linux/syscalls.h which in turn includes linux/ftrace.h
to import the syscalls tracing prototypes.But including ftrace.h can pull too much things for a low level file,
especially on ia64 where the ia32 private headers conflict with higher
level headers.Now we isolate the syscall tracing headers in their own lightweight file.
Reported-by: Tony Luck
Tested-by: Tony Luck
Signed-off-by: Frederic Weisbecker
Acked-by: Tony Luck
Signed-off-by: Steven Rostedt
Cc: Peter Zijlstra
Cc: Jason Baron
Cc: "Frank Ch. Eigler"
Cc: Mathieu Desnoyers
Cc: KOSAKI Motohiro
Cc: Lai Jiangshan
Cc: Jiaying Zhang
Cc: Michael Rubin
Cc: Martin Bligh
Cc: Michael Davidson
LKML-Reference:
Signed-off-by: Ingo Molnar -
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6:
sparc: Hook up sys_preadv and sys_pwritev
sparc64: add_node_ranges() must be __init
serial: sunsu: sunsu_kbd_ms_init needs to be __devinit
sparc: Fix section mismatch warnings in cs4231 sound driver.
sparc64: Fix section mismatch warnings in PCI controller drivers.
sparc64: Fix section mismatch warnings in power driver.
sparc64: get_cells() can't be marked __init -
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6:
[IA64] wire up preadv/pwritev system calls -
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6:
x86 ACPI: Add support for Always Running APIC timer
ACPI x86: Make aperf/mperf MSR access in acpi_cpufreq read_only
ACPI x86: Cleanup acpi_cpufreq structures related to aperf/mperf
ACPICA: delete check for AML access to port 0x81-83
ACPI: WMI: use .notify method instead of installing handler directly
sony-laptop: use .notify method instead of installing handler directly
panasonic-laptop: use .notify method instead of installing handler directly
fujitsu-laptop: use .notify method instead of installing hotkey handler directly
fujitsu-laptop: use .notify method instead of installing handler directly
ACPI: video: use .notify method instead of installing handler directly
ACPI: thermal: use .notify method instead of installing handler directly
ACPI battery: fix async boot oops
ACPI: delete acpi_device.g_list
NULL noise: drivers/platform/x86/panasonic-laptop.c
ACPI: cpufreq: remove dupilcated #include
ACPI: Adjust Kelvin offset to match local implementation
ACPI: convert acpi_device_lock spinlock to mutex -
* master.kernel.org:/home/rmk/linux-2.6-arm:
[ARM] 5446/1: ohci-at91: Limit vbus_pin assignment to the size of the array
[ARM] 5445/1: AT91: Remove flexible array from USBH platform data
[ARM] 5447/1: Add SZ_32K
[ARM] omap: fix omap1 clock usecount decrement bug
[ARM] pxa: register AC97 controller devices
[ARM] pxa/csb701: do not register devices on non-csb726 boads
[ARM] pxa/colibri: get rid of set_irq_type()
[ARM] pxa/colibri: provide MAC address from ATAG_SERIAL
[ARM] pxa/cm-x2xx: fix ucb1400 not being registered
[ARM] pxa: Add support for suspend on PalmTX, T5 and LD
[ARM] pxa: PalmTE2 support for battery, UDC, IrDA and backlight
[ARM] pxa: Palm Tungsten E2 basic support
[ARM] pxa/em-x270: add libertas device registration
[ARM] pxa/magician: Enable bq24022 regulator for gpio_vbus and pda_power -
Gerd Hoffmann added these to Linux. Let ia64 use them.
Signed-off-by: Tony Luck
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The flexible array in the USBH platform data is not safe to copy. The
compiler will not allocate any extra memory for the non-init platform
data structure (in the *_devices.c files) since it isn't given any
defaults at compile time. When the probe function attempts to address
that array, it will actually attempt to access data in an adjacent
structure.Since there are currently no (known) implementations of the at91 USBH
IP with more than 2 vbus pins, I am capping the value at 2. If somebody
tries to assign more, then the compiler will produce a warning.Signed-off-by: Justin Waters
Acked-by: David Brownell
Acked-by: Andrew Victor
Signed-off-by: Russell King -
This adds a SZ_32K define to the available sizes. I need it for an
upcoming platform support.Signed-off-by: Linus Walleij
Signed-off-by: Russell King -
Now /proc/interrupts of tip tree has new counters:
PLT: Platform interrupts
Format change of output, as like that by commit:
commit 7a81d9a7da03d2f27840d659f97ef140d032f609
x86: smarten /proc/interrupts outputshould be applied to these new counters too.
Signed-off-by: Hidetoshi Seto
Cc: Jan Beulich
LKML-Reference:
Signed-off-by: Ingo Molnar -
Merge reason: fix to be queued up depends on upstream facilities
Signed-off-by: Ingo Molnar
08 Apr, 2009
8 commits
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Closes http://bugzilla.kernel.org/show_bug.cgi?12901
Signed-off-by: Alan Cox
LKML-Reference:
Signed-off-by: Ingo Molnar -
Impact: restore old behavior
for flat and phys_flat
Signed-off-by: Yinhai Lu
Signed-off-by: Ingo Molnar -
Signed-off-by: David S. Miller
-
Signed-off-by: David S. Miller
-
Signed-off-by: David S. Miller
-
Signed-off-by: David S. Miller
-
Signed-off-by: David S. Miller
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…bjorn.notify' into release
