- 29 1月, 2009 12 次提交
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由 Ingo Molnar 提交于
The x86/Voyager subarch used to have this distinction between 'x86 SMP support' and 'Voyager SMP support': config X86_SMP bool depends on SMP && ((X86_32 && !X86_VOYAGER) || X86_64) This is a pointless distinction - Voyager can (and already does) use smp_ops to implement various SMP quirks it has - and it can be extended more to cover all the specialities of Voyager. So remove this complication in the Kconfig space. Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Ingo Molnar 提交于
Move mach_ipi.h definitions into genapic.h. Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Ingo Molnar 提交于
Spread mach_apic.h definitions into genapic.h. (with some knock-on effects on smp.h and apic.h.) Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Ingo Molnar 提交于
Move its definitions into apic.h. Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Ingo Molnar 提交于
Our send_IPI_*() methods and definitions are a twisted mess: the same symbol is defined to different things depending on .config details, in a non-transparent way. - spread out the quirks into separately named per apic driver methods - prefix the standard PC methods with default_ - get rid of wrapper macro obfuscation - clean up various details Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Ingo Molnar 提交于
- spread out the namespace on a per driver basis - get rid of wrapper macros Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Ingo Molnar 提交于
Only ES7000 has a real ->enable_apic_mode() method, the other subarchitectures define it but keep it empty. So mark the vector as NULL, extend the generic code to handle NULL -setup_portio_remap() entries and remove all the empty handlers. Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Ingo Molnar 提交于
- separate the namespace - remove macros - remove namespace clash on 64-bit Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Ingo Molnar 提交于
- separate the namespace - remove macros Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Ingo Molnar 提交于
the ->ESR_DISABLE shouting variant was used to enable the esr_disable macro wrappers. Those ugly macros are removed now so we can rename ->ESR_DISABLE to ->disable_esr Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Ingo Molnar 提交于
Impact: cleanup Most subarchitectures want to disable the APIC ESR (Error Status Register), because they generally have hardware hacks that wrap standard CPUs into a bigger system and hence the APIC bus is quite non-standard and weirdnesses (lockups) have been seen with ESR reporting. Remove the esr_disable macros and put the desired flag into each subarchitecture's genapic template directly. Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Ingo Molnar 提交于
Impact: cleanup x86 subarchitectures each defined a "apic_id_registered()" method, which could be an inline function depending on which subarch we build for, and which was also the name of a genapic field. Untangle this namespace spaghetti by giving each of the instances a separate name. Also remove wrapper macro obfuscation. Signed-off-by: NIngo Molnar <mingo@elte.hu>
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- 27 1月, 2009 1 次提交
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由 Brian Gerst 提交于
Impact: Code movement Move the variable definitions to apic.c. Ifdef the copying of the two early per-cpu variables, since Voyager doesn't use them. Signed-off-by: NBrian Gerst <brgerst@gmail.com> Signed-off-by: NTejun Heo <tj@kernel.org>
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- 20 1月, 2009 1 次提交
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由 Ingo Molnar 提交于
Impact: build fix Signed-off-by: NIngo Molnar <mingo@elte.hu>
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- 19 1月, 2009 1 次提交
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由 Mike Travis 提交于
Impact: add debug warning Fire off one message if two apic's discovered with different apic versions. (this code is only called during CPU init) The goal of this is to pave the way of the removal of the apic_version[] array. We dont expect any apic version incompatibilities in the x86 landscape of systems [if so we dont handle them very well and probably never will handle deep apic version assymetries well], but it's prudent to have a debug check for one kernel cycle nevertheless. Signed-off-by: NMike Travis <travis@sgi.com> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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- 17 1月, 2009 1 次提交
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由 Mike Travis 提交于
Fire off one message if two apic's discovered with different apic versions. Signed-off-by: NMike Travis <travis@sgi.com>
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- 16 1月, 2009 2 次提交
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由 Tejun Heo 提交于
Make early_per_cpu() a lvalue as per_cpu() is and use it where applicable. Signed-off-by: NTejun Heo <tj@kernel.org> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Jan Beulich 提交于
E.g. when called due to an early panic. Signed-off-by: NJan Beulich <jbeulich@novell.com> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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- 15 1月, 2009 2 次提交
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由 Jan Beulich 提交于
E.g. when called due to an early panic. Signed-off-by: NJan Beulich <jbeulich@novell.com> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Jan Beulich 提交于
Impact: widen the effect of the 'nolapic' boot parameter "nolapic" should not only suppress SMP and use of the LAPIC, but it also ought to have the effect of disabling all IO-APIC related activity as well as PCI MSI and HT-IRQs. Signed-off-by: NJan Beulich <jbeulich@novell.com> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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- 13 1月, 2009 1 次提交
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由 Jaswinder Singh Rajput 提交于
Fix this by reintroducing asm/smp.h include in apic.c - later on I will fix this by removing non-smp data from smp.h Also fix the __inquire_remote_apic() prototype/inline. Signed-off-by: NJaswinder Singh Rajput <jaswinderrajput@gmail.com> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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- 04 1月, 2009 2 次提交
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由 Jaswinder Singh Rajput 提交于
Impact: cleanup Fix: WARNING: Use #include <linux/smp.h> instead of <asm/smp.h> WARNING: Use #include <linux/nmi.h> instead of <asm/nmi.h> WARNING: Use #include <linux/timex.h> instead of <asm/timex.h> WARNING: line over 80 characters ERROR: else should follow close brace '}' total: 2 errors, 4 warnings Signed-off-by: NJaswinder Singh Rajput <jaswinderrajput@gmail.com> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Mike Travis 提交于
Impact: Reduce future system panics due to cpumask operations using NR_CPUS Insure that code does not look at bits >= nr_cpu_ids as when cpumasks are allocated based on nr_cpu_ids, these extra bits will not be defined. Also some other minor updates: * change in to use cpu accessor function set_cpu_present() instead of directly accessing cpu_present_map w/cpu_clear() [arch/x86/kernel/reboot.c] * use cpumask_of() instead of &cpumask_of_cpu() [arch/x86/kernel/reboot.c] * optimize some cpu_mask_to_apicid_and functions. Signed-off-by: NMike Travis <travis@sgi.com> Acked-by: NRusty Russell <rusty@rustcorp.com.au> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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- 31 12月, 2008 1 次提交
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由 Jaswinder Singh Rajput 提交于
Impact: cleanup, reduce kernel size a bit, avoid sparse warning Fixes sparse warning: arch/x86/kernel/apic.c:270:5: warning: symbol 'x2apic_icr_read' was not declared. Should it be static? Signed-off-by: NJaswinder Singh Rajput <jaswinderrajput@gmail.com> Signed-off-by: NH. Peter Anvin <hpa@zytor.com>
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- 27 12月, 2008 1 次提交
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由 Jaswinder Singh 提交于
Impact: cleanup, reduce kernel size a bit, avoid sparse warning Fixes sparse warning: arch/x86/kernel/apic.c:103:5: warning: symbol 'disable_x2apic' was not declared. Should it be static? Signed-off-by: NJaswinder Singh <jaswinder@infradead.org> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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- 24 12月, 2008 1 次提交
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由 Yinghai Lu 提交于
Impact: fix lguest, clean up 32-bit lguest used used_vectors to record vectors, but that model of allocating vectors changed and got broken, after we changed vector allocation to a per_cpu array. Try enable that for 64bit, and the array is used for all vectors that are not managed by vector_irq per_cpu array. Also kill system_vectors[], that is now a duplication of the used_vectors bitmap. [ merged in cpus4096 due to io_apic.c cpumask changes. ] [ -v2, fix build failure ] Signed-off-by: NYinghai Lu <yinghai@kernel.org> Signed-off-by: NIngo Molnar <mingo@elte.hu> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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- 18 12月, 2008 1 次提交
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由 Mike Travis 提交于
Impact: add new boot parameter Use possible_cpus=NUM kernel parameter to extend the number of possible cpus. The ability to HOTPLUG ON cpus that are "possible" but not "present" is dealt with in a later patch. Signed-off-by: NMike Travis <travis@sgi.com>
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- 17 12月, 2008 3 次提交
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由 Mike Travis 提交于
Impact: use new API Use the accessors rather than frobbing bits directly. Most of this is in arch code I haven't even compiled, but is straightforward. Signed-off-by: NRusty Russell <rusty@rustcorp.com.au> Signed-off-by: NMike Travis <travis@sgi.com>
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由 Mike Travis 提交于
Impact: cleanup, futureproof In fact, all cpumask ops will only be valid (in general) for bit numbers < nr_cpu_ids. So use that instead of NR_CPUS in various places. This is always safe: no cpu number can be >= nr_cpu_ids, and nr_cpu_ids is initialized to NR_CPUS at boot. Signed-off-by: NRusty Russell <rusty@rustcorp.com.au> Signed-off-by: NMike Travis <travis@sgi.com> Acked-by: NIngo Molnar <mingo@elte.hu>
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由 Mike Travis 提交于
Impact: cleanup, change parameter passing * Change genapic interfaces to accept cpumask_t pointers where possible. * Modify external callers to use cpumask_t pointers in function calls. * Create new send_IPI_mask_allbutself which is the same as the send_IPI_mask functions but removes smp_processor_id() from list. This removes another common need for a temporary cpumask_t variable. * Functions that used a temp cpumask_t variable for: cpumask_t allbutme = cpu_online_map; cpu_clear(smp_processor_id(), allbutme); if (!cpus_empty(allbutme)) ... become: if (!cpus_equal(cpu_online_map, cpumask_of_cpu(cpu))) ... * Other minor code optimizations (like using cpus_clear instead of CPU_MASK_NONE, etc.) Applies to linux-2.6.tip/master. Signed-off-by: NMike Travis <travis@sgi.com> Signed-off-by: NRusty Russell <rusty@rustcorp.com.au> Acked-by: NIngo Molnar <mingo@elte.hu>
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- 13 12月, 2008 1 次提交
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由 Rusty Russell 提交于
Impact: change calling convention of existing clock_event APIs struct clock_event_timer's cpumask field gets changed to take pointer, as does the ->broadcast function. Another single-patch change. For safety, we BUG_ON() in clockevents_register_device() if it's not set. Signed-off-by: NRusty Russell <rusty@rustcorp.com.au> Cc: Ingo Molnar <mingo@elte.hu>
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- 12 12月, 2008 3 次提交
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由 Hiroshi Shimamoto 提交于
Impact: cleanup Introduce inc_irq_stat() macro and unify irq_stat accounting code. Signed-off-by: NHiroshi Shimamoto <h-shimamoto@ct.jp.nec.com> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Hiroshi Shimamoto 提交于
Impact: cleanup Introduce helper inline function in arch/x86/include/asm/idle.h to remove #ifdefs around exit_idle(). Signed-off-by: NHiroshi Shimamoto <h-shimamoto@ct.jp.nec.com> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Frederic Weisbecker 提交于
Impact: move most important x86 irq entry-points to a separate subsection Annotate do_IRQ and smp_apic_timer_interrupt to put them into the .irqentry.text subsection. These function will so be recognized as hardirq entrypoints for the function-graph-tracer. We could also annotate other irq entries but the others are far less important but they can be added on request. Signed-off-by: NFrederic Weisbecker <fweisbec@gmail.com> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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- 01 12月, 2008 1 次提交
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由 Al Viro 提交于
calls __init, called only from __init Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 11 11月, 2008 1 次提交
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由 Thomas Gleixner 提交于
Impact: avoid spurious lapic timer events on shutdown The apic timer might be close to firing when it is shutdown. We can not really disable the timer - we just mask the interrupt. That way we can get an extra interrupt when it is reenabled. Set the counter to max on shutdown to avoid this. Signed-off-by: NThomas Gleixner <tglx@linutronix.de> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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- 10 11月, 2008 2 次提交
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由 Cyrill Gorcunov 提交于
Impact: cleanup It saves us some source lines and shift the code a bit righter. And a multiline comment style is fixed too :-) Signed-off-by: NCyrill Gorcunov <gorcunov@gmail.com> Acked-by: N"Maciej W. Rozycki" <macro@linux-mips.org> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Cyrill Gorcunov 提交于
Impact: cleanup lapic_timer_setup is self-protected with local_irq_save/restore no need to use them in caller and levt is the per-cpu variable so no concurrent access from another cpu. Signed-off-by: NCyrill Gorcunov <gorcunov@gmail.com> Acked-by: N"Maciej W. Rozycki" <macro@linux-mips.org> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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- 16 10月, 2008 2 次提交
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由 Cyrill Gorcunov 提交于
Use APIC_DIVISOR being set to 16 for both 32/64bit mode. To escape APIC timer underflow during calibration set it to the maximum possible value. Also typo error (CONFG instead of proper CONFIG) fixed. The error was caught by Venkatesh Pallipadi, thanks a lot Venkatesh! See details on http://lkml.org/lkml/2008/10/9/425Reported-by: NVenkatesh Pallipad <venkatesh.pallipadi@intel.com> Signed-off-by: NCyrill Gorcunov <gorcunov@gmail.com> Acked-by: N"Maciej W. Rozycki" <macro@linux-mips.org> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Cyrill Gorcunov 提交于
Interrupt remapping could lead to NULL dereference in case of kzalloc failed and memory leak in other way. So fix the both cases. Signed-off-by: NCyrill Gorcunov <gorcunov@gmail.com> Cc: "Maciej W. Rozycki" <macro@linux-mips.org> Cc: Suresh Siddha <suresh.b.siddha@intel.com> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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