15 Nov, 2009
1 commit
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Signed-off-by: FUJITA Tomonori
Cc: tony.luck@intel.com
LKML-Reference:
Signed-off-by: Ingo Molnar
10 Nov, 2009
1 commit
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This enables us to avoid printing swiotlb memory info when we
initialize swiotlb. After swiotlb initialization, we could find
that we don't need swiotlb.This patch removes the code to print swiotlb memory info in
swiotlb_init() and exports the function to do that.Signed-off-by: FUJITA Tomonori
Cc: chrisw@sous-sol.org
Cc: dwmw2@infradead.org
Cc: joerg.roedel@amd.com
Cc: muli@il.ibm.com
Cc: tony.luck@intel.com
Cc: benh@kernel.crashing.org
LKML-Reference:
[ -v2: merge up conflict ]
Signed-off-by: Ingo Molnar
03 Nov, 2009
1 commit
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This reverts commit b94b08081fcecf83fa690d6c5664f6316fe72208.
genksyms currently cannot handle complicated types for exported
percpu variables. Drop this patch for now as it prevents a
module from being loaded on sn2 systems:xpc: no symbol version for per_cpu____sn_cnodeid_to_nasid
xpc: Unknown symbol per_cpu____sn_cnodeid_to_nasidSigned-off-by: Tony Luck
24 Oct, 2009
2 commits
16 Oct, 2009
1 commit
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Fix percpu types warning in ia64/sn:
arch/ia64/sn/kernel/setup.c:74: error: conflicting types for '__pcpu_scope___sn_cnodeid_to_nasid'
arch/ia64/include/asm/sn/arch.h:74: error: previous declaration of '__pcpu_scope___sn_cnodeid_to_nasid' was hereSigned-off-by: Randy Dunlap
Cc: Jes Sorensen
Acked-by: Tejun Heo
Signed-off-by: Tony Luck
14 Oct, 2009
5 commits
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We can be kinder to SMT systems in spin_unlock_wait.
Signed-off-by: Tony Luck
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Use printk_once() in a couple of places.
Signed-off-by: Marcin Slusarz
Signed-off-by: Andrew Morton
Signed-off-by: Tony Luck -
We had assumed that SAL firmware would return an error if it didn't
understand extended config space. Unfortunately, the SAL on the SGI 750
doesn't do that, it panics the machine. So, condition the extended PCI
config space accesses on SAL revision 3.2.Signed-off-by: Matthew Wilcox
Tested-by: Brad Spengler
Signed-off-by: Tony Luck -
struct sn_hwperf_ioctl_args member arg (u64) cannot be less than 0.
Signed-off-by: Roel Kluin
Signed-off-by: Andrew Morton
Signed-off-by: Tony Luck -
Registers are not saved anywhere when INIT comes during fsys mode and
we cannot know what happened when we investigate vmcore captured by
kdump. This patch adds new function finish_pt_regs() so registers can
be saved in such a case.Signed-off-by: Takao Indoh
Signed-off-by: Tony Luck
10 Oct, 2009
1 commit
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Bound the wait time for the ptcg_sem by using similar idea to the
ticket spin locks. In this case we have only one instance of a
spinaphore, so make it 8 bytes rather than try to squeeze it into
4-bytes to keep the code simpler (and shorter).Signed-off-by: Tony Luck
08 Oct, 2009
1 commit
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Linus pointed out that other people have spent large amounts of time
and effort to optimize the layout of frequently used structures. Often
these have embedded locks, and the assumption is that a lock takes
4 bytes. Linus also pointed out how to work with the limited options
for atomic instructions on Itanium.Signed-off-by: Tony Luck
28 Sep, 2009
2 commits
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* mark struct vm_area_struct::vm_ops as const
* mark vm_ops in AGP codeBut leave TTM code alone, something is fishy there with global vm_ops
being used.Signed-off-by: Alexey Dobriyan
Signed-off-by: Linus Torvalds -
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6:
ACPI: IA64=y ACPI=n build fix
ACPI: Kill overly verbose "power state" log messages
ACPI: fix Compaq Evo N800c (Pentium 4m) boot hang regression
ACPI: Clarify resource conflict message
thinkpad-acpi: fix CONFIG_THINKPAD_ACPI_HOTKEY_POLL build problem
27 Sep, 2009
1 commit
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ia64's sim_defconfig uses CONFIG_ACPI=n
which now #define's acpi_disabled inSo we shouldn't re-define it here in
Signed-off-by: Len Brown
25 Sep, 2009
1 commit
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Back in January 2008 Nick Piggin implemented "ticket" spinlocks
for X86 (See commit 314cdbefd1fd0a7acf3780e9628465b77ea6a836).IA64 implementation has a couple of differences because of the
available atomic operations ... e.g. we have no fetchadd2 instruction
that operates on a 16-bit quantity so we make ticket locks use
a 32-bit word for each of the current ticket and now-serving values.Performance on uncontended locks is about 8% worse than the previous
implementation, but this seems a good trade for determinism in the
contended case. Performance impact on macro-level benchmarks is in
the noise.Signed-off-by: Tony Luck
24 Sep, 2009
9 commits
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* git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus: (39 commits)
cpumask: Move deprecated functions to end of header.
cpumask: remove unused deprecated functions, avoid accusations of insanity
cpumask: use new-style cpumask ops in mm/quicklist.
cpumask: use mm_cpumask() wrapper: x86
cpumask: use mm_cpumask() wrapper: um
cpumask: use mm_cpumask() wrapper: mips
cpumask: use mm_cpumask() wrapper: mn10300
cpumask: use mm_cpumask() wrapper: m32r
cpumask: use mm_cpumask() wrapper: arm
cpumask: Use accessors for cpu_*_mask: um
cpumask: Use accessors for cpu_*_mask: powerpc
cpumask: Use accessors for cpu_*_mask: mips
cpumask: Use accessors for cpu_*_mask: m32r
cpumask: remove arch_send_call_function_ipi
cpumask: arch_send_call_function_ipi_mask: s390
cpumask: arch_send_call_function_ipi_mask: powerpc
cpumask: arch_send_call_function_ipi_mask: mips
cpumask: arch_send_call_function_ipi_mask: m32r
cpumask: arch_send_call_function_ipi_mask: alpha
cpumask: remove obsolete topology_core_siblings and topology_thread_siblings: ia64
... -
Now everyone is converted to arch_send_call_function_ipi_mask, remove
the shim and the #defines.Signed-off-by: Rusty Russell
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There were replaced by topology_core_cpumask and topology_thread_cpumask.
Signed-off-by: Rusty Russell
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smp_call_function_many is the new version: it takes a pointer. Also,
use mm accessor macro while we're changing this.Signed-off-by: Rusty Russell
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Signed-off-by: Rusty Russell
-
* git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild-next: (30 commits)
Use macros for .data.page_aligned section.
Use macros for .bss.page_aligned section.
Use new __init_task_data macro in arch init_task.c files.
kbuild: Don't define ALIGN and ENTRY when preprocessing linker scripts.
arm, cris, mips, sparc, powerpc, um, xtensa: fix build with bash 4.0
kbuild: add static to prototypes
kbuild: fail build if recordmcount.pl fails
kbuild: set -fconserve-stack option for gcc 4.5
kbuild: echo the record_mcount command
gconfig: disable "typeahead find" search in treeviews
kbuild: fix cc1 options check to ensure we do not use -fPIC when compiling
checkincludes.pl: add option to remove duplicates in place
markup_oops: use modinfo to avoid confusion with underscored module names
checkincludes.pl: provide usage helper
checkincludes.pl: close file as soon as we're done with it
ctags: usability fix
kernel hacking: move STRIP_ASM_SYMS from General
gitignore usr/initramfs_data.cpio.bz2 and usr/initramfs_data.cpio.lzma
kbuild: Check if linker supports the -X option
kbuild: introduce ld-option
...Fix trivial conflict in scripts/basic/fixdep.c
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* git://git.infradead.org/iommu-2.6: (23 commits)
intel-iommu: Disable PMRs after we enable translation, not before
intel-iommu: Kill DMAR_BROKEN_GFX_WA option.
intel-iommu: Fix integer wrap on 32 bit kernels
intel-iommu: Fix integer overflow in dma_pte_{clear_range,free_pagetable}()
intel-iommu: Limit DOMAIN_MAX_PFN to fit in an 'unsigned long'
intel-iommu: Fix kernel hang if interrupt remapping disabled in BIOS
intel-iommu: Disallow interrupt remapping if not all ioapics covered
intel-iommu: include linux/dmi.h to use dmi_ routines
pci/dmar: correct off-by-one error in dmar_fault()
intel-iommu: Cope with yet another BIOS screwup causing crashes
intel-iommu: iommu init error path bug fixes
intel-iommu: Mark functions with __init
USB: Work around BIOS bugs by quiescing USB controllers earlier
ia64: IOMMU passthrough mode shouldn't trigger swiotlb init
intel-iommu: make domain_add_dev_info() call domain_context_mapping()
intel-iommu: Unify hardware and software passthrough support
intel-iommu: Cope with broken HP DC7900 BIOS
iommu=pt is a valid early param
intel-iommu: double kfree()
intel-iommu: Kill pointless intel_unmap_single() function
...Fixed up trivial include lines conflict in drivers/pci/intel-iommu.c
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* 'timers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
itimers: Add tracepoints for itimer
hrtimer: Add tracepoint for hrtimers
timers: Add tracepoints for timer_list timers
cputime: Optimize jiffies_to_cputime(1)
itimers: Simplify arm_timer() code a bit
itimers: Fix periodic tics precision
itimers: Merge ITIMER_VIRT and ITIMER_PROFTrivial header file include conflicts in kernel/fork.c
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* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6: (119 commits)
ACPI: don't pass handle for fixed hardware notifications
ACPI: remove null pointer checks in deferred execution path
ACPI: simplify deferred execution path
acerhdf: additional BIOS versions
acerhdf: convert to dev_pm_ops
acerhdf: fix fan control for AOA150 model
thermal: add missing Kconfig dependency
acpi: switch /proc/acpi/{debug_layer,debug_level} to seq_file
hp-wmi: fix rfkill memory leak on unload
ACPI: remove unnecessary #ifdef CONFIG_DMI
ACPI: linux/acpi.h should not include linux/dmi.h
hwmon driver for ACPI 4.0 power meters
topstar-laptop: add new driver for hotkeys support on Topstar N01
thinkpad_acpi: fix rfkill memory leak on unload
thinkpad-acpi: report brightness events when required
thinkpad-acpi: don't poll by default any of the reserved hotkeys
thinkpad-acpi: Fix procfs hotkey reset command
thinkpad-acpi: deprecate hotkey_bios_mask
thinkpad-acpi: hotkey poll fixes
thinkpad-acpi: be more strict when detecting a ThinkPad
...
23 Sep, 2009
4 commits
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For /proc/kcore, each arch registers its memory range by kclist_add().
In usual,- range of physical memory
- range of vmalloc area
- text, etc...are registered but "range of physical memory" has some troubles. It
doesn't updated at memory hotplug and it tend to include unnecessary
memory holes. Now, /proc/iomem (kernel/resource.c) includes required
physical memory range information and it's properly updated at memory
hotplug. Then, it's good to avoid using its own code(duplicating
information) and to rebuild kclist for physical memory based on
/proc/iomem.Signed-off-by: KAMEZAWA Hiroyuki
Signed-off-by: Jiri Slaby
Cc: Ralf Baechle
Cc: Benjamin Herrenschmidt
Cc: WANG Cong
Cc: KOSAKI Motohiro
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Some 64bit arch has special segment for mapping kernel text. It should be
entried to /proc/kcore in addtion to direct-linear-map, vmalloc area.
This patch unifies KCORE_TEXT entry scattered under x86 and ia64.I'm not familiar with other archs (mips has its own even after this patch)
but range of [_stext ..._end) is a valid area of text and it's not in
direct-map area, defining CONFIG_ARCH_PROC_KCORE_TEXT is only a necessary
thing to do.Note: I left mips as it is now.
Signed-off-by: KAMEZAWA Hiroyuki
Cc: Ralf Baechle
Cc: Benjamin Herrenschmidt
Cc: WANG Cong
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
For /proc/kcore, vmalloc areas are registered per arch. But, all of them
registers same range of [VMALLOC_START...VMALLOC_END) This patch unifies
them. By this. archs which have no kclist_add() hooks can see vmalloc
area correctly.Signed-off-by: KAMEZAWA Hiroyuki
Cc: Ralf Baechle
Cc: Benjamin Herrenschmidt
Cc: WANG Cong
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Presently, kclist_add() only eats start address and size as its arguments.
Considering to make kclist dynamically reconfigulable, it's necessary to
know which kclists are for System RAM and which are not.This patch add kclist types as
KCORE_RAM
KCORE_VMALLOC
KCORE_TEXT
KCORE_OTHERThis "type" is used in a patch following this for detecting KCORE_RAM.
Signed-off-by: KAMEZAWA Hiroyuki
Cc: Ralf Baechle
Cc: Benjamin Herrenschmidt
Cc: WANG Cong
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
22 Sep, 2009
4 commits
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* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (34 commits)
trivial: fix typo in aic7xxx comment
trivial: fix comment typo in drivers/ata/pata_hpt37x.c
trivial: typo in kernel-parameters.txt
trivial: fix typo in tracing documentation
trivial: add __init/__exit macros in drivers/gpio/bt8xxgpio.c
trivial: add __init macro/ fix of __exit macro location in ipmi_poweroff.c
trivial: remove unnecessary semicolons
trivial: Fix duplicated word "options" in comment
trivial: kbuild: remove extraneous blank line after declaration of usage()
trivial: improve help text for mm debug config options
trivial: doc: hpfall: accept disk device to unload as argument
trivial: doc: hpfall: reduce risk that hpfall can do harm
trivial: SubmittingPatches: Fix reference to renumbered step
trivial: fix typos "man[ae]g?ment" -> "management"
trivial: media/video/cx88: add __init/__exit macros to cx88 drivers
trivial: fix typo in CONFIG_DEBUG_FS in gcov doc
trivial: fix missing printk space in amd_k7_smp_check
trivial: fix typo s/ketymap/keymap/ in comment
trivial: fix typo "to to" in multiple files
trivial: fix typos in comments s/DGBU/DBGU/
... -
A number of architectures have identical asm/mman.h files so they can all
be merged by using the new generic file.The remaining asm/mman.h files are substantially different from each
other.Signed-off-by: Arnd Bergmann
Cc:
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Add a flag for mmap that will be used to request a huge page region that
will look like anonymous memory to user space. This is accomplished by
using a file on the internal vfsmount. MAP_HUGETLB is a modifier of
MAP_ANONYMOUS and so must be specified with it. The region will behave
the same as a MAP_ANONYMOUS region using small pages.The patch also adds the MAP_STACK flag, which was previously defined only
on some architectures but not on others. Since MAP_STACK is meant to be a
hint only, architectures can define it without assigning a specific
meaning to it.Signed-off-by: Arnd Bergmann
Cc: Eric B Munson
Cc: Hugh Dickins
Cc: David Rientjes
Cc:
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Commit 96177299416dbccb73b54e6b344260154a445375 ("Drop free_pages()")
modified nr_free_pages() to return 'unsigned long' instead of 'unsigned
int'. This made the casts to 'unsigned long' in most callers superfluous,
so remove them.[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: Geert Uytterhoeven
Reviewed-by: Christoph Lameter
Acked-by: Ingo Molnar
Acked-by: Russell King
Acked-by: David S. Miller
Acked-by: Kyle McMartin
Acked-by: WANG Cong
Cc: Richard Henderson
Cc: Ivan Kokshaysky
Cc: Haavard Skinnemoen
Cc: Mikael Starvik
Cc: "Luck, Tony"
Cc: Hirokazu Takata
Cc: Ralf Baechle
Cc: David Howells
Acked-by: Benjamin Herrenschmidt
Cc: Martin Schwidefsky
Cc: Paul Mundt
Cc: Chris Zankel
Cc: Michal Simek
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
21 Sep, 2009
2 commits
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Signed-off-by: Anand Gadiyar
Signed-off-by: Jiri Kosina -
Signed-off-by: Joe Perches
Signed-off-by: Tim Abbott
Acked-by: Paul Mundt
Signed-off-by: Sam Ravnborg
20 Sep, 2009
2 commits
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ld-option is misnamed as it test options to gcc, not to ld.
Renamed it to reflect this.Cc: Andi Kleen
Cc: Roland McGrath
Signed-off-by: Sam Ravnborg -
Replace the use of CROSS_COMPILE to select a customized
installkernel script with the possibility to set INSTALLKERNEL
to select a custom installkernel script when running make:make INSTALLKERNEL=arm-installkernel install
With this patch we are now more consistent across
different architectures - they did not all support use
of CROSS_COMPILE.The use of CROSS_COMPILE was a hack as this really belongs
to gcc/binutils and the installkernel script does not change
just because we change toolchain.The use of CROSS_COMPILE caused troubles with an upcoming patch
that saves CROSS_COMPILE when a kernel is built - it would no
longer be installable.
[Thanks to Peter Z. for this hint]This patch undos what Ian did in commit:
0f8e2d62fa04441cd12c08ce521e84e5bd3f8a46
("use ${CROSS_COMPILE}installkernel in arch/*/boot/install.sh")The patch has been lightly tested on x86 only - but all changes
looks obvious.Acked-by: Peter Zijlstra
Acked-by: Mike Frysinger [blackfin]
Acked-by: Russell King [arm]
Acked-by: Paul Mundt [sh]
Acked-by: "H. Peter Anvin" [x86]
Cc: Ian Campbell
Cc: Tony Luck [ia64]
Cc: Fenghua Yu [ia64]
Cc: Hirokazu Takata [m32r]
Cc: Geert Uytterhoeven [m68k]
Cc: Kyle McMartin [parisc]
Cc: Benjamin Herrenschmidt [powerpc]
Cc: Martin Schwidefsky [s390]
Cc: Thomas Gleixner [x86]
Cc: Ingo Molnar [x86]
Signed-off-by: Sam Ravnborg
19 Sep, 2009
2 commits
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* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6:
[IA64] Clean up linker script using standard macros.
[IA64] Use standard macros for page-aligned data.
[IA64] Use .ref.text, not .text.init for start_ap.
[IA64] sgi-xp: fix printk format warnings
[IA64] ioc4_serial: fix printk format warnings
[IA64] mbcs: fix printk format warnings
[IA64] pci_br, fix infinite loop in find_free_ate()
[IA64] kdump: Short path to freeze CPUs
[IA64] kdump: Try INIT regardless of
[IA64] kdump: Mask INIT first in panic-kdump path
[IA64] kdump: Don't return APs to SAL from kdump
[IA64] kexec: Unregister MCA handler before kexec
[IA64] kexec: Make INIT safe while transition to
[IA64] kdump: Mask MCA/INIT on frozen cpusFix up conflict in arch/ia64/kernel/vmlinux.lds.S as per Tony's
suggestion.