- 17 4月, 2008 3 次提交
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由 Roman Zippel 提交于
The proper dependency check uncovered a few dependency problems, the subarchitecture used a mixture of selects and depends on SMP and PCI dependency was messed up. Signed-off-by: NRoman Zippel <zippel@linux-m68k.org> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Hiroshi Shimamoto 提交于
X86_HT is used for hyperthreading or multicore on 32-bit. The X86_HT on 64-bit is different from 32-bit, it means hyperthreading only. And X86_HT is not used on 64-bit except from cpu/initel_cacheinfo.c. Unify X86_HT for hyperthreading or multicore. Turn X86_HT on when X86_64 and SMP are enabled. Signed-off-by: NHiroshi Shimamoto <h-shimamoto@ct.jp.nec.com> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Glauber Costa 提交于
Signed-off-by: NGlauber Costa <gcosta@redhat.com> Signed-off-by: NRavikiran Thirumalai <kiran@scalemp.com> Acked-by: NShai Fultheim <shai@scalemp.com> Signed-off-by: NIngo Molnar <mingo@elte.hu> Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
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- 13 3月, 2008 1 次提交
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由 Randy Dunlap 提交于
Move 00-INDEX entries to power/00-INDEX (and add entry for pm_qos_interface.txt). Update references to moved filenames. Fix some trailing whitespace. Signed-off-by: NRandy Dunlap <randy.dunlap@oracle.com> Signed-off-by: NLen Brown <len.brown@intel.com>
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- 12 3月, 2008 1 次提交
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由 Thomas Gleixner 提交于
quicklists cause a serious memory leak on 32-bit x86, as documented at: http://bugzilla.kernel.org/show_bug.cgi?id=9991 the reason is that the quicklist pool is a special-purpose cache that grows out of proportion. It is not accounted for anywhere and users have no way to even realize that it's the quicklists that are causing RAM usage spikes. It was supposed to be a relatively small pool, but as demonstrated by KOSAKI Motohiro, they can grow as large as: Quicklists: 1194304 kB given how much trouble this code has caused historically, and given that Andrew objected to its introduction on x86 (years ago), the best option at this point is to remove them. [ any performance benefits of caching constructed pgds should be implemented in a more generic way (possibly within the page allocator), while still allowing constructed pages to be allocated by other workloads. ] Signed-off-by: NThomas Gleixner <tglx@linutronix.de> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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- 05 3月, 2008 1 次提交
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Add CONFIG_HAVE_KRETPROBES to the arch/<arch>/Kconfig file for relevant architectures with kprobes support. This facilitates easy handling of in-kernel modules (like samples/kprobes/kretprobe_example.c) that depend on kretprobes being present in the kernel. Thanks to Sam Ravnborg for helping make the patch more lean. Per Mathieu's suggestion, added CONFIG_KRETPROBES and fixed up dependencies. Signed-off-by: NAnanth N Mavinakayanahalli <ananth@in.ibm.com> Acked-by: NMathieu Desnoyers <mathieu.desnoyers@polymtl.ca> Acked-by: NIngo Molnar <mingo@elte.hu> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 04 3月, 2008 1 次提交
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由 Randy Dunlap 提交于
Most classic Pentiums don't have hardware virtualization extension, and building kvm with Voyager, Visual Workstation, or NUMAQ generates spurious failures. Signed-off-by: NAvi Kivity <avi@qumranet.com> Signed-off-by: NRandy Dunlap <randy.dunlap@oracle.com>
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- 23 2月, 2008 1 次提交
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由 Linus Torvalds 提交于
It's always been broken, but recent fixes actually made it do something, and now the brokenness shows up as the resulting kernel simply not working at all. So it used to be that you could enable this config option, and it just didn't do anything. Now we'd better stop people from enabling it by mistake, since it _does_ do something, but does it so badly as to be unusable. Code to actually make it work is pending, but incomplete and won't be merged into 2.6.25 in any case. Acked-by: NArjan van de Ven <arjan@infradead.org> Acked-by: NSam Ravnborg <sam@ravnborg.org> Cc: James Morris <jmorris@namei.org> Cc: Ingo Molnar <mingo@elte.hu> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 15 2月, 2008 1 次提交
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由 Balbir Singh 提交于
The KVM configuration is no longer visible in the latest git tree. It looks like it is selected by HAVE_SETUP_PER_CPU_AREA. I've moved HAVE_KVM to under CONFIG_X86. Signed-off-by: NBalbir Singh <balbir@linux.vnet.ibm.com> Acked-by: NAvi Kivity <avi@qumranet.com> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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- 09 2月, 2008 3 次提交
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由 Sam Ravnborg 提交于
To allow flexible configuration of IDE introduce HAVE_IDE. All archs except arm, um and s390 unconditionally select it. For arm the actual configuration determine if IDE is supported. This is a step towards introducing drivers/Kconfig for arm. Signed-off-by: NSam Ravnborg <sam@ravnborg.org> Acked-by: NRussell King - ARM Linux <linux@arm.linux.org.uk> Acked-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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由 Venki Pallipadi 提交于
The last posted version of this patch gave compile error on IA64. So, here goes yet another rewrite of the patch. Convert cpu_idle_wait() to cpuidle_kick_cpus() which is SMP-only, and gives error on non supported CPU. Changes from last patch sent by Kevin: Moved the definition of kick_cpus back to cpuidle.c from cpuidle.h: * Having it in .h gives #error on archs which includes the header file without actually having CPU_IDLE configured. To make it work in .h, we need one more #ifdef around that code which makes it messy. * Also, the function is only called from one file. So, it can be in declared statically in .c rather than making it available to everyone who includes the .h file. Signed-off-by: NVenkatesh Pallipadi <venkatesh.pallipadi@intel.com> Signed-off-by: NKevin Hilman <khilman@mvista.com> Signed-off-by: NLen Brown <len.brown@intel.com>
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由 David Howells 提交于
Mark arches that support A.OUT format by including the following in their master Kconfig files: config ARCH_SUPPORTS_AOUT def_bool y This should also be set if the arch provides compatibility A.OUT support for an older arch, for instance x86_64 for i386 or sparc64 for sparc. I've guessed at which arches don't, based on comments in the code, however I'm sure that some of the ones I've marked as 'yes' actually should be 'no'. Signed-off-by: NDavid Howells <dhowells@redhat.com> Cc: <linux-arch@vger.kernel.org> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 08 2月, 2008 2 次提交
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由 Christoph Lameter 提交于
Provide an alternate implementation of the SLUB fast paths for alloc and free using cmpxchg_local. The cmpxchg_local fast path is selected for arches that have CONFIG_FAST_CMPXCHG_LOCAL set. An arch should only set CONFIG_FAST_CMPXCHG_LOCAL if the cmpxchg_local is faster than an interrupt enable/disable sequence. This is known to be true for both x86 platforms so set FAST_CMPXCHG_LOCAL for both arches. Currently another requirement for the fastpath is that the kernel is compiled without preemption. The restriction will go away with the introduction of a new per cpu allocator and new per cpu operations. The advantages of a cmpxchg_local based fast path are: 1. Potentially lower cycle count (30%-60% faster) 2. There is no need to disable and enable interrupts on the fast path. Currently interrupts have to be disabled and enabled on every slab operation. This is likely avoiding a significant percentage of interrupt off / on sequences in the kernel. 3. The disposal of freed slabs can occur with interrupts enabled. The alternate path is realized using #ifdef's. Several attempts to do the same with macros and inline functions resulted in a mess (in particular due to the strange way that local_interrupt_save() handles its argument and due to the need to define macros/functions that sometimes disable interrupts and sometimes do something else). [clameter: Stripped preempt bits and disabled fastpath if preempt is enabled] Signed-off-by: NChristoph Lameter <clameter@sgi.com> Reviewed-by: NPekka Enberg <penberg@cs.helsinki.fi> Cc: <linux-arch@vger.kernel.org> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
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由 Bradley Smith 提交于
Adds i8k driver to the x86_64 Kconfig. Signed-off-by: NBradley Smith <bradjsmith@btinternet.com> Cc: Frank Sorenson <frank@tuxrocks.com> Cc: Jeff Garzik <jeff@garzik.org> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 07 2月, 2008 3 次提交
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Add a default poll idle state with 0 latency. Provides an option to users to use poll_idle by using 0 as the latency requirement. Signed-off-by: NVenkatesh Pallipadi <venkatesh.pallipadi@intel.com> Signed-off-by: NLen Brown <len.brown@intel.com>
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由 Bernhard Walle 提交于
That patch adds the RTC emulation of the HPET timer to the new RTC_DRV_CMOS. The old drivers/char/rtc.ko driver had that functionality and it's important on new systems. [akpm@linux-foundation.org: unbreak alpha build] Signed-off-by: NBernhard Walle <bwalle@suse.de> Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: David Brownell <david-b@pacbell.net> Cc: Ingo Molnar <mingo@elte.hu> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Andi Kleen <ak@suse.de> Cc: john stultz <johnstul@us.ibm.com> Cc: Robert Picco <Robert.Picco@hp.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
- 06 2月, 2008 2 次提交
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由 FUJITA Tomonori 提交于
This patch converts gart IOMMU to use the IOMMU helper functions. The IOMMU doesn't allocate a memory area spanning LLD's segment boundary anymore. Signed-off-by: NFUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Cc: Jeff Garzik <jeff@garzik.org> Cc: James Bottomley <James.Bottomley@steeleye.com> Cc: Jens Axboe <jens.axboe@oracle.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@elte.hu> Cc: Muli Ben-Yehuda <mulix@mulix.org> Cc: Andi Kleen <ak@suse.de> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 FUJITA Tomonori 提交于
This patch converts calgary IOMMU to use the IOMMU helper functions. The IOMMU doesn't allocate a memory area spanning LLD's segment boundary anymore. Signed-off-by: NFUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Cc: Jeff Garzik <jeff@garzik.org> Cc: James Bottomley <James.Bottomley@steeleye.com> Cc: Jens Axboe <jens.axboe@oracle.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@elte.hu> Cc: Muli Ben-Yehuda <mulix@mulix.org> Cc: Andi Kleen <ak@suse.de> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 04 2月, 2008 1 次提交
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由 Florian Fainelli 提交于
The mach-rdc321x uses the leds-gpio driver and explicitely selects it, this driver also depends on the leds class module, select it as well. Signed-off-by: NFlorian Fainelli <florian.fainelli@telecomint.eu> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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- 03 2月, 2008 4 次提交
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由 Adrian Bunk 提交于
After seeing the filename I'd have expected something about the implementation of SMP in the Linux kernel - not some notes on kernel configuration and building trivialities noone would search at this place. Signed-off-by: NAdrian Bunk <bunk@kernel.org> Acked-by: NAlan Cox <alan@redhat.com>
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由 Mathieu Desnoyers 提交于
Move the instrumentation Kconfig to arch/Kconfig for architecture dependent options - oprofile - kprobes and init/Kconfig for architecture independent options - profiling - markers Remove the "Instrumentation Support" menu. Everything moves to "General setup". Delete the kernel/Kconfig.instrumentation file. Signed-off-by: NMathieu Desnoyers <mathieu.desnoyers@polymtl.ca> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: <linux-arch@vger.kernel.org> Signed-off-by: NSam Ravnborg <sam@ravnborg.org>
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由 Mathieu Desnoyers 提交于
Linus: On the per-architecture side, I do think it would be better to *not* have internal architecture knowledge in a generic file, and as such a line like depends on X86_32 || IA64 || PPC || S390 || SPARC64 || X86_64 || AVR32 really shouldn't exist in a file like kernel/Kconfig.instrumentation. It would be much better to do depends on ARCH_SUPPORTS_KPROBES in that generic file, and then architectures that do support it would just have a bool ARCH_SUPPORTS_KPROBES default y in *their* architecture files. That would seem to be much more logical, and is readable both for arch maintainers *and* for people who have no clue - and don't care - about which architecture is supposed to support which interface... Changelog: Actually, I know I gave this as the magic incantation, but now that I see it, I realize that I should have told you to just use config KPROBES_SUPPORT def_bool y instead, which is a bit denser. We seem to use both kinds of syntax for these things, but this is really what "def_bool" is there for... - Use HAVE_KPROBES - Use a select - Yet another update : Moving to HAVE_* now. - Update ARM for kprobes support. Signed-off-by: NMathieu Desnoyers <mathieu.desnoyers@polymtl.ca> Cc: Jeff Dike <jdike@addtoit.com> Cc: David Howells <dhowells@redhat.com> Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com> Signed-off-by: NSam Ravnborg <sam@ravnborg.org>
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由 Mathieu Desnoyers 提交于
Linus: On the per-architecture side, I do think it would be better to *not* have internal architecture knowledge in a generic file, and as such a line like depends on X86_32 || IA64 || PPC || S390 || SPARC64 || X86_64 || AVR32 really shouldn't exist in a file like kernel/Kconfig.instrumentation. It would be much better to do depends on ARCH_SUPPORTS_KPROBES in that generic file, and then architectures that do support it would just have a bool ARCH_SUPPORTS_KPROBES default y in *their* architecture files. That would seem to be much more logical, and is readable both for arch maintainers *and* for people who have no clue - and don't care - about which architecture is supposed to support which interface... Changelog: Actually, I know I gave this as the magic incantation, but now that I see it, I realize that I should have told you to just use config ARCH_SUPPORTS_KPROBES def_bool y instead, which is a bit denser. We seem to use both kinds of syntax for these things, but this is really what "def_bool" is there for... Changelog : - Moving to HAVE_*. - Add AVR32 oprofile. Signed-off-by: NMathieu Desnoyers <mathieu.desnoyers@polymtl.ca> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Haavard Skinnemoen <hskinnemoen@atmel.com> Cc: David Howells <dhowells@redhat.com> Cc: Jeff Dike <jdike@addtoit.com> Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com> Signed-off-by: NSam Ravnborg <sam@ravnborg.org>
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- 02 2月, 2008 4 次提交
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由 Johannes Berg 提交于
This cleans up the suspend Kconfig and removes the need to declare centrally which architectures support suspend. All architectures that currently support suspend are modified accordingly. Signed-off-by: NJohannes Berg <johannes@sipsolutions.net> Acked-by: NRussell King <rmk@arm.linux.org.uk> Acked-by: NPaul Mackerras <paulus@samba.org> Acked-by: NRalf Baechle <ralf@linux-mips.org> Acked-by: NPaul Mundt <lethal@linux-sh.org> Cc: Pavel Machek <pavel@suse.cz> Signed-off-by: NRafael J. Wysocki <rjw@sisk.pl> Signed-off-by: NLen Brown <len.brown@intel.com>
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由 Johannes Berg 提交于
This cleans up the hibernation Kconfig and removes the need to declare centrally which architectures support hibernation. All architectures that currently support hibernation are modified accordingly. Signed-off-by: NJohannes Berg <johannes@sipsolutions.net> Acked-by: NPaul Mackerras <paulus@samba.org> Cc: Pavel Machek <pavel@suse.cz> Signed-off-by: NRafael J. Wysocki <rjw@sisk.pl> Signed-off-by: NLen Brown <len.brown@intel.com>
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由 Adrian Bunk 提交于
A HOWTO that hasn't been updated for half a dozen years no longer "contains valuable information about which PCI hardware does work under Linux and which doesn't". Signed-off-by: NAdrian Bunk <bunk@kernel.org> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Heiko Carstens 提交于
Change latencytop Kconfig entry so it doesn't list the archictectures that support it. Instead introduce HAVE_LATENCY_SUPPORT which any architecture can set. Should reduce patch conflicts. Cc: Arjan van de Ven <arjan@linux.intel.com> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Holger Wolf <wolf@linux.vnet.ibm.com> Signed-off-by: NHeiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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- 01 2月, 2008 1 次提交
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由 Kevin Hilman 提交于
Convert cpu_idle_wait() to cpuidle_kick_cpus() macro which is SMP-only, and gives error on non supported CPU. Signed-off-by: NKevin Hilman <khilman@mvista.com> Acked-by: NVenkatesh Pallipadi <venkatesh.pallipadi@intel.com> Acked-by: NRafael J. Wysocki <rjw@sisk.pl> Signed-off-by: NLen Brown <len.brown@intel.com>
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- 31 1月, 2008 1 次提交
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由 Avi Kivity 提交于
This paves the way for multiple architecture support. Note that while ioapic.c could potentially be shared with ia64, it is also moved. Signed-off-by: NAvi Kivity <avi@qumranet.com>
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- 30 1月, 2008 10 次提交
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由 Avi Kivity 提交于
Currently, make headers_check barfs due to <asm/kvm.h>, which <linux/kvm.h> includes, not existing. Rather than add a zillion <asm/kvm.h>s, export kvm.h only if the arch actually supports it. Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Huang, Ying 提交于
This patch replaces boot_ioremap invokation with bt_ioremap and removes the boot_ioremap implementation. Signed-off-by: NHuang Ying <ying.huang@intel.com> Signed-off-by: NIngo Molnar <mingo@elte.hu> Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
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由 Florian Fainelli 提交于
This patch adds support for the RDC R-321x system-on-chip, also known as R-861x-(G). It uses the generic GPIO API and has support for the on-chip hardware watchdog. Build-fix from: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: NFlorian Fainelli <florian.fainelli@telecomint.eu> Signed-off-by: NIngo Molnar <mingo@elte.hu> Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
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由 Florian Fainelli 提交于
This patch adds the generic GPIO support to the x86 architecture. We do the same as for MIPS, we let the machine override the gpio callbacks and provide defaults one in mach-generic. Signed-off-by: NFlorian Fainelli <florian.fainelli@telecomint.eu> Signed-off-by: NIngo Molnar <mingo@elte.hu> Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
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由 Mike Travis 提交于
Signed-off-by: NIngo Molnar <mingo@elte.hu> Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
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由 Eduardo Pereira Habkost 提交于
With this, the paravirt_ops code can be enabled on x86_64 also. Each guest implementation (Xen, VMI, lguest) now depends on X86_32. The dependencies can be dropped for each one when they start to support x86_64. Signed-off-by: NEduardo Habkost <ehabkost@redhat.com> Signed-off-by: NIngo Molnar <mingo@elte.hu> Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
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由 Eduardo Pereira Habkost 提交于
This will allow people to enable the paravirt_ops code even when no guest support is enabled, for broader testing of the paravirt_ops code. Signed-off-by: NEduardo Habkost <ehabkost@redhat.com> Signed-off-by: NIngo Molnar <mingo@elte.hu> Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
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由 Bernhard Walle 提交于
the previous patch in the old RTC driver. It also removes the direct rtc_interrupt() call from arch/x86/kernel/hpetc.c so that there's finally no (code) dependency to CONFIG_RTC in arch/x86/kernel/hpet.c. Because of this, it's possible to compile the drivers/char/rtc.ko driver as module and still use the HPET emulation functionality. This is also expressed in Kconfig. Signed-off-by: NBernhard Walle <bwalle@suse.de> Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: David Brownell <david-b@pacbell.net> Cc: Andi Kleen <ak@suse.de> Cc: john stultz <johnstul@us.ibm.com> Cc: Robert Picco <Robert.Picco@hp.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NIngo Molnar <mingo@elte.hu> Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
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由 travis@sgi.com 提交于
Change the size of node ids for X86_64 from u8 to s16 to accomodate more than 32k nodes and allow for NUMA_NO_NODE (-1) to be sign extended to int. Cc: David Rientjes <rientjes@google.com> Cc: Yinghai Lu <yhlu.kernel@gmail.com> Cc: Eric Dumazet <dada1@cosmosbay.com> Signed-off-by: NMike Travis <travis@sgi.com> Reviewed-by: NChristoph Lameter <clameter@sgi.com> Signed-off-by: NIngo Molnar <mingo@elte.hu> Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
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由 Mel Gorman 提交于
The FLATMEM memory model references a global mem_map and max_mapnr. This is incompatible with how memory models used for NUMA view the world. Builds fail if FLATMEM && NUMA are set on x86. This patch forbids that combination of config items. This is consistent with x86_64 enforcements. Signed-off-by: NMel Gorman <mel@csn.ul.ie> Signed-off-by: NIngo Molnar <mingo@elte.hu> Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
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