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2010-02-28Merge branch 'x86-uv-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'x86-uv-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86, uv: Remove recursion in uv_heartbeat_enable() x86, uv: uv_global_gru_mmr_address() macro fix x86, uv: Add serial number parameter to uv_bios_get_sn_info()
2010-02-27x86: Enable NMI on all cpus on UVRuss Anderson
Enable NMI on all cpus in UV system and add an NMI handler to dump_stack on each cpu. By default on x86 all the cpus except the boot cpu have NMI masked off. This patch enables NMI on all cpus in UV system and adds an NMI handler to dump_stack on each cpu. This way if a system hangs we can NMI the machine and get a backtrace from all the cpus. Version 2: Use x86_platform driver mechanism for nmi init, per Ingo's suggestion. Version 3: Clean up Ingo's nits. Signed-off-by: Russ Anderson <rja@sgi.com> LKML-Reference: <20100226164912.GA24439@sgi.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2010-02-05x86, uv: Update UV arch to target Legacy VGA I/O correctly.Mike Travis
Add function to direct Legacy VGA I/O traffic to correct I/O Hub. Signed-off-by: Mike Travis <travis@sgi.com> LKML-Reference: <201002022238.o12McEbi018727@imap1.linux-foundation.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Robin Holt <holt@sgi.com> Cc: Jack Steiner <steiner@sgi.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Jesse Barnes <jbarnes@virtuousgeek.org> Cc: David Airlie <airlied@linux.ie> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2010-01-15x86, uv: Ensure hub revision set for all ACPI modes.Russ Anderson
Ensure that UV hub revision is set for all ACPI modes. Signed-off-by: Russ Anderson <rja@sgi.com> LKML-Reference: <20100115180908.GB7757@sgi.com> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2010-01-15x86, uv: Add function retrieving node controller revision numberJack Steiner
Add function for determining the revision id of the SGI UV node controller chip (HUB). This function is needed in a subsequent patch. Signed-off-by: Jack Steiner <steiner@sgi.com> LKML-Reference: <20100112210904.GA24546@sgi.com> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2010-01-13x86: SGI UV: Fix mapping of MMIO registersMike Travis
This fixes the problem of the initialization code not correctly mapping the entire MMIO space on a UV system. A side effect is the map_high() interface needed to be changed to accommodate different address and size shifts. Signed-off-by: Mike Travis <travis@sgi.com> Reviewed-by: Mike Habeck <habeck@sgi.com> Cc: <stable@kernel.org> Cc: Jack Steiner <steiner@sgi.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> LKML-Reference: <4B479202.7080705@sgi.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2010-01-07x86, uv: Remove recursion in uv_heartbeat_enable()Roel Kluin
The recursion is not needed and does not improve readability. Signed-off-by: Roel Kluin <roel.kluin@gmail.com> LKML-Reference: <4B45F13E.3040202@gmail.com> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2009-12-29x86: SGI UV: Fix writes to led registers on remote uv hubsMike Travis
The wrong address was being used to write the SCIR led regs on remote hubs. Also, there was an inconsistency between how BIOS and the kernel indexed these regs. Standardize on using the lower 6 bits of the APIC ID as the index. This patch fixes the problem of writing to an errant address to a cpu # >= 64. Signed-off-by: Mike Travis <travis@sgi.com> Reviewed-by: Jack Steiner <steiner@sgi.com> Cc: Robin Holt <holt@sgi.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: stable@kernel.org LKML-Reference: <4B3922F9.3060905@sgi.com> [ v2: fix a number of annoying checkpatch artifacts and whitespace noise ] Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-12-17x86, irq: Allow 0xff for /proc/irq/[n]/smp_affinity on an 8-cpu systemSuresh Siddha
John Blackwood reported: > on an older Dell PowerEdge 6650 system with 8 cpus (4 are hyper-threaded), > and 32 bit (x86) kernel, once you change the irq smp_affinity of an irq > to be less than all cpus in the system, you can never change really the > irq smp_affinity back to be all cpus in the system (0xff) again, > even though no error status is returned on the "/bin/echo ff > > /proc/irq/[n]/smp_affinity" operation. > > This is due to that fact that BAD_APICID has the same value as > all cpus (0xff) on 32bit kernels, and thus the value returned from > set_desc_affinity() via the cpu_mask_to_apicid_and() function is treated > as a failure in set_ioapic_affinity_irq_desc(), and no affinity changes > are made. set_desc_affinity() is already checking if the incoming cpu mask intersects with the cpu online mask or not. So there is no need for the apic op cpu_mask_to_apicid_and() to check again and return BAD_APICID. Remove the BAD_APICID return value from cpu_mask_to_apicid_and() and also fix set_desc_affinity() to return -1 instead of using BAD_APICID to represent error conditions (as cpu_mask_to_apicid_and() can return logical or physical apicid values and BAD_APICID is really to represent bad physical apic id). Reported-by: John Blackwood <john.blackwood@ccur.com> Root-caused-by: John Blackwood <john.blackwood@ccur.com> Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com> LKML-Reference: <1261103386.2535.409.camel@sbs-t61> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2009-12-17x86, uv: Add serial number parameter to uv_bios_get_sn_info()Russ Anderson
Add system_serial_number to the information returned by uv_bios_get_sn_info() UV BIOS call. Signed-off-by: Russ Anderson <rja@sgi.com> LKML-Reference: <20091217165323.GA30774@sgi.com> Cc: Jack Steiner <steiner@sgi.com> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2009-12-08Merge branch 'x86-mm-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (36 commits) x86, mm: Correct the implementation of is_untracked_pat_range() x86/pat: Trivial: don't create debugfs for memtype if pat is disabled x86, mtrr: Fix sorting of mtrr after subtracting x86: Move find_smp_config() earlier and avoid bootmem usage x86, platform: Change is_untracked_pat_range() to bool; cleanup init x86: Change is_ISA_range() into an inline function x86, mm: is_untracked_pat_range() takes a normal semiclosed range x86, mm: Call is_untracked_pat_range() rather than is_ISA_range() x86: UV SGI: Don't track GRU space in PAT x86: SGI UV: Fix BAU initialization x86, numa: Use near(er) online node instead of roundrobin for NUMA x86, numa, bootmem: Only free bootmem on NUMA failure path x86: Change crash kernel to reserve via reserve_early() x86: Eliminate redundant/contradicting cache line size config options x86: When cleaning MTRRs, do not fold WP into UC x86: remove "extern" from function prototypes in <asm/proto.h> x86, mm: Report state of NX protections during boot x86, mm: Clean up and simplify NX enablement x86, pageattr: Make set_memory_(x|nx) aware of NX support x86, sleep: Always save the value of EFER ... Fix up conflicts (added both iommu_shutdown and is_untracked_pat_range) to 'struct x86_platform_ops') in arch/x86/include/asm/x86_init.h arch/x86/kernel/x86_init.c
2009-12-05Merge branch 'x86-apic-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'x86-apic-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (30 commits) x86, apic: Enable lapic nmi watchdog on AMD Family 11h x86: Remove unnecessary mdelay() from cpu_disable_common() x86, ioapic: Document another case when level irq is seen as an edge x86, ioapic: Fix the EOI register detection mechanism x86, io-apic: Move the effort of clearing remoteIRR explicitly before migrating the irq x86: SGI UV: Map low MMR ranges x86: apic: Print out SRAT table APIC id in hex x86: Re-get cfg_new in case reuse/move irq_desc x86: apic: Remove not needed #ifdef x86: io-apic: IO-APIC MMIO should not fail on resource insertion x86: Remove asm/apicnum.h x86: apic: Do not use stacked physid_mask_t x86, apic: Get rid of apicid_to_cpu_present assign on 64-bit x86, ioapic: Use snrpintf while set names for IO-APIC resourses x86, apic: Use PAGE_SIZE instead of numbers x86: Remove local_irq_enable()/local_irq_disable() in fixup_irqs() x86: Use EOI register in io-apic on intel platforms x86: Force irq complete move during cpu offline x86: Remove move_cleanup_count from irq_cfg x86, intr-remap: Avoid irq_chip mask/unmask in fixup_irqs() for intr-remapping ...
2009-11-30x86, mm: Correct the implementation of is_untracked_pat_range()H. Peter Anvin
The semantics the PAT code expect of is_untracked_pat_range() is "is this range completely contained inside the untracked region." This means that checkin 8a27138924f64d2f30c1022f909f74480046bc3f was technically wrong, because the implementation needlessly confusing. The sane interface is for it to take a semiclosed range like just about everything else (as evidenced by the sheer number of "- 1"'s removed by that patch) so change the actual implementation to match. Reported-by: Suresh Siddha <suresh.b.siddha@intel.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Jack Steiner <steiner@sgi.com> Signed-off-by: H. Peter Anvin <hpa@zytor.com> LKML-Reference: <20091119202341.GA4420@sgi.com>
2009-11-26x86: SGI UV: Map low MMR rangesJack Steiner
Explicitly mmap the UV chipset MMR address ranges used to access blade-local registers. Although these same MMRs are also mmaped at higher addresses, the low range is more convenient when accessing blade-local registers. The low range addresses always alias to the local blade regardless of the blade id. Signed-off-by: Jack Steiner <steiner@sgi.com> LKML-Reference: <20091125162018.GA25445@sgi.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-11-23x86, platform: Change is_untracked_pat_range() to bool; cleanup initH. Peter Anvin
- Change is_untracked_pat_range() to return bool. - Clean up the initialization of is_untracked_pat_range() -- by default, we simply point it at is_ISA_range() directly. - Move is_untracked_pat_range to the end of struct x86_platform, since it is the newest field. Signed-off-by: H. Peter Anvin <hpa@zytor.com> Acked-by: Thomas Gleixner <tglx@linutronix.de> Cc: Jack Steiner <steiner@sgi.com> LKML-Reference: <20091119202341.GA4420@sgi.com>
2009-11-23x86: UV SGI: Don't track GRU space in PATJack Steiner
GRU space is always mapped as WB in the page table. There is no need to track the mappings in the PAT. This also eliminates the "freeing invalid memtype" messages when the GRU space is unmapped. Signed-off-by: Jack Steiner <steiner@sgi.com> LKML-Reference: <20091119202341.GA4420@sgi.com> [ v2: fix build failure ] Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-10-16x86, UV: Fix information in __uv_hub_info structureRobin Holt
A few parts of the uv_hub_info structure are initialized incorrectly. - n_val is being loaded with m_val. - gpa_mask is initialized with a bytes instead of an unsigned long. - Handle the case where none of the alias registers are used. Lastly I converted the bau over to using the uv_hub_info->m_val which is the correct value. Without this patch, booting a large configuration hits a problem where the upper bits of the gnode affect the pnode and the bau will not operate. Signed-off-by: Robin Holt <holt@sgi.com> Acked-by: Jack Steiner <steiner@sgi.com> Cc: Cliff Whickman <cpw@sgi.com> Cc: stable@kernel.org LKML-Reference: <20091015224946.396355000@alcatraz.americas.sgi.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-09-18x86: SGI UV: Map MMIO-High memory rangeJack Steiner
UV depends on the MMRHI space being identity mapped. The patch: x86: Make 64-bit efi_ioremap use ioremap on MMIO regions changed this to make efi regions at a different address using ioremap. Add the identity mapping to uv_system_init. ( Note this code was previously present but was deleted when BIOS added the ranges to the EFI map - previous efi code identify mapped the ranges. ) Signed-off-by: Jack Steiner <steiner@sgi.com> LKML-Reference: <20090909154339.GA7946@sgi.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-08-16x86: Annotate section mismatch warnings in kernel/apic/x2apic_uv_x.cLeonardo Potenza
The function uv_acpi_madt_oem_check() has been marked __init, the struct apic_x2apic_uv_x has been marked __refdata. The aim is to address the following section mismatch messages: WARNING: arch/x86/kernel/apic/built-in.o(.data+0x1368): Section mismatch in reference from the variable apic_x2apic_uv_x to the function .cpuinit.text:uv_wakeup_secondary() The variable apic_x2apic_uv_x references the function __cpuinit uv_wakeup_secondary() If the reference is valid then annotate the variable with __init* or __refdata (see linux/init.h) or name the variable: *driver, *_template, *_timer, *_sht, *_ops, *_probe, *_probe_one, *_console, WARNING: arch/x86/kernel/built-in.o(.data+0x68e8): Section mismatch in reference from the variable apic_x2apic_uv_x to the function .cpuinit.text:uv_wakeup_secondary() The variable apic_x2apic_uv_x references the function __cpuinit uv_wakeup_secondary() If the reference is valid then annotate the variable with __init* or __refdata (see linux/init.h) or name the variable: *driver, *_template, *_timer, *_sht, *_ops, *_probe, *_probe_one, *_console, WARNING: arch/x86/built-in.o(.text+0x7b36f): Section mismatch in reference from the function uv_acpi_madt_oem_check() to the function .init.text:early_ioremap() The function uv_acpi_madt_oem_check() references the function __init early_ioremap(). This is often because uv_acpi_madt_oem_check lacks a __init annotation or the annotation of early_ioremap is wrong. WARNING: arch/x86/built-in.o(.text+0x7b38d): Section mismatch in reference from the function uv_acpi_madt_oem_check() to the function .init.text:early_iounmap() The function uv_acpi_madt_oem_check() references the function __init early_iounmap(). This is often because uv_acpi_madt_oem_check lacks a __init annotation or the annotation of early_iounmap is wrong. WARNING: arch/x86/built-in.o(.data+0x8668): Section mismatch in reference from the variable apic_x2apic_uv_x to the function .cpuinit.text:uv_wakeup_secondary() The variable apic_x2apic_uv_x references the function __cpuinit uv_wakeup_secondary() If the reference is valid then annotate the variable with __init* or __refdata (see linux/init.h) or name the variable: *driver, *_template, *_timer, *_sht, *_ops, *_probe, *_probe_one, *_console, Signed-off-by: Leonardo Potenza <lpotenza@inwind.it> LKML-Reference: <200908161855.48302.lpotenza@inwind.it> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-08-04x86, UV: Fix UV apic modeJack Steiner
Change SGI UV default apicid mode to "physical". This is required to match settings in the UV hub chip. Signed-off-by: Jack Steiner <steiner@sgi.com> LKML-Reference: <20090727143856.GA8905@sgi.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-08-04x86, UV: Delete mapping of MMR rangs mapped by BIOSJack Steiner
The UV BIOS has added additional MMR ranges that are mapped via EFI virtual mode mappings. These ranges should be deleted from ranges mapped by uv_system_init(). Signed-off-by: Jack Steiner <steiner@sgi.com> Cc: linux-mm@kvack.org LKML-Reference: <20090727143656.GA7698@sgi.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-08-04x86, UV: Handle missing blade-local memory correctlyJack Steiner
UV blades may not have any blade-local memory. Add a field (nid) to the UV blade structure to indicates whether the node has local memory. This is needed by the GRU driver (pushed separately). Signed-off-by: Jack Steiner <steiner@sgi.com> Cc: linux-mm@kvack.org LKML-Reference: <20090727143507.GA7006@sgi.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-06-15Merge branch 'timers-for-linus-migration' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'timers-for-linus-migration' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: timers: Logic to move non pinned timers timers: /proc/sys sysctl hook to enable timer migration timers: Identifying the existing pinned timers timers: Framework for identifying pinned timers timers: allow deferrable timers for intervals tv2-tv5 to be deferred Fix up conflicts in kernel/sched.c and kernel/timer.c manually
2009-06-10Merge branch 'x86-urgent-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86: Clear TS in irq_ts_save() when in an atomic section x86: Detect use of extended APIC ID for AMD CPUs x86: memtest: remove 64-bit division x86, UV: Fix macros for multiple coherency domains x86: Fix non-lazy GS handling in sys_vm86() x86: Add quirk for reboot stalls on a Dell Optiplex 360 x86: Fix UV BAU activation descriptor init
2009-06-08x86, UV: Fix macros for multiple coherency domainsJack Steiner
Fix bug in the SGI UV macros that support systems with multiple coherency domains. The macros used for referencing global MMR (chipset registers) are failing to correctly "or" the NASID (node identifier) bits that reside above M+N. These high bits are supplied automatically by the chipset for memory accesses coming from the processor socket. However, the bits must be present for references to the special global MMR space used to map chipset registers. (See uv_hub.h for more details ...) The bug results in references to invalid/incorrect nodes. Signed-off-by: Jack Steiner <steiner@sgi.com> Cc: <stable@kernel.org> LKML-Reference: <20090608154405.GA16395@sgi.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-05-13timers: Identifying the existing pinned timersArun R Bharadwaj
* Arun R Bharadwaj <arun@linux.vnet.ibm.com> [2009-04-16 12:11:36]: The following pinned hrtimers have been identified and marked: 1)sched_rt_period_timer 2)tick_sched_timer 3)stack_trace_timer_fn [ tglx: fixup the hrtimer pinned mode ] Signed-off-by: Arun R Bharadwaj <arun@linux.vnet.ibm.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2009-05-11Merge commit 'v2.6.30-rc5' into x86/apicIngo Molnar
Merge reason: this branch was on a .30-rc2 base - sync it up with all the latest fixes. Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-05-03x86: uv - prevent NULL dereference in uv_system_init()Cyrill Gorcunov
We may reach NULL dereference oops if kmalloc failed. Prevent it with explicit BUG_ON. [ Impact: more controlled assert in 'impossible' scenario ] Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org> Acked-by: Jack Steiner <steiner@sgi.com> LKML-Reference: <20090501202511.GE4633@lenovo> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-04-20x86/uv: fix for no memory at paddr 0Jack Steiner
Fix endcase where the memory at physical address 0 does not really exist AND one of the sockets on blade 0 has no active cpus. The memory that _appears_ to be at physical address 0 is actually memory that located at a different address but has been remapped by the chipset so that it appears to be at physical address 0. When determining the UV pnode, the algorithm for determining the pnode incorrectly used the relocated physical address instead of the actual (global) address. [ Impact: boot failure on partitioned systems ] Signed-off-by: Jack Steiner <steiner@sgi.com> LKML-Reference: <20090420132530.GA23156@sgi.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-04-20Merge branch 'linus' into x86/urgentIngo Molnar
Merge reason: We need the x86/uv updates from upstream, to queue up dependent fix. Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-04-19x86: es7000, uv - use __cpuinit for kicking secondary cpusCyrill Gorcunov
The caller already has __cpuinit attribute. [ Impact: save memory, address section mismatch warning ] Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org> Cc: Yinghai Lu <yhlu.kernel@gmail.com> Cc: Pavel Emelyanov <xemul@openvz.org> LKML-Reference: <20090419074311.GA8670@lenovo> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-04-17x86/uv: fix init of cpu-less nodesJack Steiner
Fix an endcase in the UV initialization code for the "UV large system mode" of apicids. If node zero contains no cpus, cpus on another node will be the boot cpu. The percpu data that contains the extra apicid bits was not being initialized early enough. [ Impact: fix potential boot crash on cpu-less UV nodes ] Signed-off-by: Jack Steiner <steiner@sgi.com> LKML-Reference: <20090417142447.GA23759@sgi.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-04-03x86, UV: Fix for nodes with memory and no cpusJack Steiner
Fix initialization of UV blade information for systems that have nodes with memory but no cpus. Signed-off-by: Jack Steiner <steiner@sgi.com> LKML-Reference: <20090330140111.GA18461@sgi.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-04-02sgi-gru: add macros for using the UV hub to send interruptsJack Steiner
Add macros for using the UV hub to send interrupts. Change the IPI code to use these macros. These macros will also be used in additional patches that will follow. Signed-off-by: Jack Steiner <steiner@sgi.com> Cc: "Luck, Tony" <tony.luck@intel.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: "H. Peter Anvin" <hpa@zytor.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-02-26x86: apic: simplify secondary CPU wakeup methods, fixIngo Molnar
Impact: build fix init_deasserted is only available on SMP. Make the secondary-wakeup function conditional on SMP. Also clean up the file some. Cc: Yinghai Lu <yinghai@kernel.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-02-26x86: apic: simplify secondary CPU wakeup methodsIngo Molnar
Impact: cleanup - rename apic->wakeup_cpu to apic->wakeup_secondary_cpu, to make it apparent that this is an SMP-only method - handle NULL ->wakeup_secondary_cpus to mean the default INIT wakeup sequence - this allows simplification of the APIC driver templates. Cc: Yinghai Lu <yinghai@kernel.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-02-26x86: remove update_apic from x86_quirksYinghai Lu
Impact: cleanup x86_quirks->update_apic() calling looks crazy. so try to remove it: 1. every apic take wakeup_cpu member directly 2. separate es7000_apic to es7000_apic_cluster 3. use uv_wakeup_cpu directly Signed-off-by: Yinghai Lu <yinghai@kernel.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-02-17x86, apic: move APIC drivers to arch/x86/kernel/apic/*Ingo Molnar
arch/x86/kernel/ is getting a bit crowded, and the APIC drivers are scattered into various different files. Move them to arch/x86/kernel/apic/*, and also remove the 'gen' prefix from those which had it. Also move APIC related functionality: the IO-APIC driver, the NMI and the IPI code. Signed-off-by: Ingo Molnar <mingo@elte.hu>
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