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path: root/arch/x86/kernel/mpparse.c
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2008-12-08x86: clean up get_smp_config()Yinghai Lu
Impact: cleanup reorder exit path in __get_smp_config(). also move two print outs to acpi_process_madt Signed-off-by: Yinghai Lu <yinghai@kernel.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-12-04x86: fix early panic with boot option "nosmp"Andi Kleen
Impact: fix boot crash with numcpus=0 on certain systems Fix early exception in __get_smp_config with nosmp. Bail out early when there is no MP table. Reported-by: Wu Fengguang <fengguang.wu@intel.com> Signed-off-by: Andi Kleen <ak@linux.intel.com> Tested-by: Wu Fengguang <fengguang.wu@intel.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-11Merge branch 'x86/apic' into x86-v28-for-linus-phase4-BIngo Molnar
Conflicts: arch/x86/kernel/apic_32.c arch/x86/kernel/apic_64.c arch/x86/kernel/setup.c drivers/pci/intel-iommu.c include/asm-x86/cpufeature.h include/asm-x86/dma-mapping.h
2008-08-18x86: mpparse.c: fix section mismatch warningMarcin Slusarz
WARNING: vmlinux.o(.text+0x118f7): Section mismatch in reference from the function construct_ioapic_table() to the function .init.text:MP_bus_info() The function construct_ioapic_table() references the function __init MP_bus_info(). This is often because construct_ioapic_table lacks a __init annotation or the annotation of MP_bus_info is wrong. construct_ioapic_table is called only from construct_default_ISA_mptable which is __init Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com> Signed-off-by: H. Peter Anvin <hpa@zytor.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-08-18x86: fix MP_processor_info section mismatch warningMarcin Slusarz
WARNING: arch/x86/kernel/built-in.o(.cpuinit.text+0x1fe7): Section mismatch in reference from the function MP_processor_info() to the variable .init.data:x86_quirks The function __cpuinit MP_processor_info() references a variable __initdata x86_quirks. If x86_quirks is only used by MP_processor_info then annotate x86_quirks with a matching annotation. MP_processor_info uses x86_quirks which is __init and is used only from smp_read_mpc and construct_default_ISA_mptable which are __init Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com> Signed-off-by: H. Peter Anvin <hpa@zytor.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-08-14Merge branch 'linus' into x86/coreIngo Molnar
Conflicts: arch/x86/kernel/genapic_64.c include/asm-x86/kvm_host.h Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-08-11x86, debug: tone down arch/x86/kernel/mpparse.c debugging printkRene Herman
commit 11a62a056093a7f25f1595fbd8bd5f93559572b6 turns some formerly nopped debugging printks in arch/x86/kernel/mppparse.c into regular ones. The one at the top of smp_scan_config() in particular also prints on !CONFIG_SMP/CONFIG_X86_LOCAL_APIC kernels and UP machines without anything resembling MP tables which makes their lowly UP owners wonder... Turn the former Dprintk()s into apic_printk()s instead meaning that their printing is dependent on passing the apic=verbose (or =debug) command line param. On 32-bit, "apic" is a __setup() param which isn't early enough for this code and therefore needs a followup changing it into an early_param(). On 64-bit, it already is. Signed-off-by: Rene Herman <rene.herman@gmail.com> Cc: Andrew Morton <akpm@osdl.org> Cc: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-22Merge branch 'linus' into x86/x2apicIngo Molnar
2008-07-20x86: extend and use x86_quirks to clean up NUMAQ codeYinghai Lu
add these new x86_quirks methods: int *mpc_record; int (*mpc_apic_id)(struct mpc_config_processor *m); void (*mpc_oem_bus_info)(struct mpc_config_bus *m, char *name); void (*mpc_oem_pci_bus)(struct mpc_config_bus *m); void (*smp_read_mpc_oem)(struct mp_config_oemtable *oemtable, unsigned short oemsize); ... and move NUMAQ related mps table handling to numaq_32.c. also move the call to smp_read_mpc_oem() to smp_read_mpc() directly. Should not change functionality, albeit it would be nice to get it tested on real NUMAQ as well ... Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-20x86: introduce x86_quirksYinghai Lu
introduce x86_quirks array of boot-time quirk methods. No change in functionality intended. Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-12x64, x2apic/intr-remap: add x2apic support, including enabling ↵Suresh Siddha
interrupt-remapping x2apic support. Interrupt-remapping must be enabled before enabling x2apic, this is needed to ensure that IO interrupts continue to work properly after the cpu mode is changed to x2apic(which uses 32bit extended physical/cluster apic id). On systems where apicid's are > 255, BIOS can handover the control to OS in x2apic mode. Or if the OS handover was in legacy xapic mode, check if it is capable of x2apic mode. And if we succeed in enabling Interrupt-remapping, then we can enable x2apic mode in the CPU. Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com> Cc: akpm@linux-foundation.org Cc: arjan@linux.intel.com Cc: andi@firstfloor.org Cc: ebiederm@xmission.com Cc: jbarnes@virtuousgeek.org Cc: steiner@sgi.com Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-10x86: add early quirk supportIngo Molnar
Add early quirks support. In preparation of enabling the generic architecture to boot on a VISWS. This will allow us to remove the VISWS subarch and all its complications. Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-08x86: update mptable fix with no ioapic v2Yinghai Lu
if the system doesn't have ioapic, we don't need to store entries for mptable update also let mp_config_acpi_gsi not call func in mpparse so later could decouple mpparse with acpi more easily Reported-by: Daniel Exner <dex@dragonslave.de> Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Daniel Exner <dex@dragonslave.de> Cc: Len Brown <lenb@kernel.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-08x86: keep MP_intsrc_info untouched if we do not update mptableYinghai Lu
Daniel Exner reported IO-APIC enumeration breakage in linux-next. Alexey Starikovskiy found out that it might be related to commit 2944e16b25 "x86: update mptable". use enable_update_mptable to decide if need check before add mp_irqs array. Reported-by: Daniel Exner <webmaster@dragonslave.de> Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-08x86: clean up reserve_bootmem_generic() and port it to 32-bitYinghai Lu
1. add reserve_bootmem_generic for 32bit 2. change len to unsigned long 3. make early_res_to_bootmem to use it Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-08x86: make generic arch support NUMAQ, fix #2Yinghai Lu
we are checking mptable early for numaq, so don't need to reserve_bootmem for it. bootmem is not there yet. do the same thing as 64-bit. found it on 64g above system from 64-bit kernel kexec to 32 bit kernel with numaq support. Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-08x86: add flags parameter to reserve_bootmem_generic()Bernhard Walle
This patch adds a 'flags' parameter to reserve_bootmem_generic() like it already has been added in reserve_bootmem() with commit 72a7fe3967dbf86cb34e24fbf1d957fe24d2f246. It also changes all users to use BOOTMEM_DEFAULT, which doesn't effectively change the behaviour. Since the change is x86-specific, I don't think it's necessary to add a new API for migration. There are only 4 users of that function. The change is necessary for the next patch, using reserve_bootmem_generic() for crashkernel reservation. Signed-off-by: Bernhard Walle <bwalle@suse.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-06-10x86: make generic arch support NUMAQYinghai Lu
... so it could fall back to normal numa and we'd reduce the impact of the NUMAQ subarch. NUMAQ depends on GENERICARCH also decouple genericarch numa from acpi. also make it fall back to bigsmp if apicid > 8. Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-06-10x86: introduce max_physical_apicid for bigsmp switchingYinghai Lu
a multi-socket test-system with 3 or 4 ioapics, when 4 dualcore cpus or 2 quadcore cpus installed, needs to switch to bigsmp or physflat. CPU apic id is [4,11] instead of [0,7], and we need to check max apic id instead of cpu numbers. also add check for 32 bit when acpi is not compiled in or acpi=off. Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-06-04x86: early check if a system is numaqYinghai Lu
so we could fall back to one node numa. Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-06-03x86: update mptableYinghai Lu
make mptable to be consistent with acpi routing, so we could: 1. kexec kernel with acpi=off 2. work around BIOSes where acpi routing is working, but mptable is not right, so can use kernel/kexec to start other OSes that don't have good acpi support. command line: update_mptable Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-05-25x86: fix mpparse falloutThomas Gleixner
UP builds with LOCAL_APIC=y and IO_APIC=n fail with a missing reference to mp_bus_not_pci. Distangle the mpparse code some more and move the ioapic specific bus check into a separate function. This code needs sume urgent un#ifdef surgery all over the place. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-05-25x86: move mp_bus_not_pci from mpparse.cAlexey Starikovskiy
2008-05-25x86: mp_bus_id_to_pci_bus is not neededAlexey Starikovskiy
2008-05-25x86: move smp_found_configAlexey Starikovskiy
2008-05-25x86: move pic_mode to apic_32.cAlexey Starikovskiy
2008-05-25x86: Set pic_mode only if local apic code is presentAlexey Starikovskiy
2008-05-25x86: make config_irqsrc not MPspec specificAlexey Starikovskiy
Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-05-25x86: make struct config_ioapic not MPspec specificAlexey Starikovskiy
Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-05-25x86: complete move ACPI from mpparse.cAlexey Starikovskiy
Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-05-25x86: move es7000_plat out of mpparse.cAlexey Starikovskiy
Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-05-25x86: cleanup print out for mptableYinghai Lu
the new output is: MPTABLE: OEM ID: SUN MPTABLE: Product ID: 4600 M2 MPTABLE: APIC at: 0x instead of it all in one line with <6> and double Product ID... Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-05-25x86: move mp_ioapic_routing to mpparse and make it staticThomas Gleixner
mpparse is the only user of mp_ioapic_routing. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-05-04x86: es7000 build fixIngo Molnar
Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-04-26x86: uniq_ioapic_id - fix section mismatch warningJacek Luczak
Fix folowing warning: WARNING: arch/x86/kernel/built-in.o(.text+0x10799): Section mismatch in reference from the function uniq_ioapic_id() uniq_ioapic_id() is only used by __init mp_register_ioapic(). Annotate uniq_ioapic_id() with __init. Signed-off-by: Jacek Luczak <luczak.jacek@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-04-26x86: use bitmap library for pin_programmedAkinobu Mita
Use bitmap library for pin_programmed rather than reinvent bitmaps. Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-26x86: use MP_intsrc_info()Akinobu Mita
Remove duplicate code by using MP_intsrc_info() in mpparse.c Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-26x86: use BUILD_BUG_ON() for the size of struct intel_mp_floatingAkinobu Mita
Use BUILD_BUG_ON() instead of compile-time error technique with extern non-exsistent function. Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-17x86: print out buggy mptableYinghai Lu
print out buggy mptable, instead of skipping it quietly Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-17x86: merge mpparse_{32,64}.cAlexey Starikovskiy
Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
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