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2008-10-16io_apic: make irq_mis_count available on 64-bit tooIngo Molnar
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-16genirq: fix name space collisions of nr_irqs in arch/*Thomas Gleixner
local shadows of global variables are _bad_ Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-10-16x86: move ack_bad_irq() to irq.cThomas Gleixner
Share more duplicated code. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-10-16x86: unify show_interrupts() and proc helpersThomas Gleixner
show_interrupts() and proc helpers are basically the same for 32 and 64 bit. Move them to a shared source file. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-10-16x86: cleanup show_interruptsThomas Gleixner
The sparseirq patches introduced some more ugliness in show_interrupts(). Clean it up all together and make the code easier to read by splitting out the "tail" function which prints the special interrupts. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-10-16genirq: remove artifacts from sparseirq removalIngo Molnar
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-16genirq: revert dynarrayThomas Gleixner
Revert the dynarray changes. They need more thought and polishing. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-10-16genirq: remove irq_to_desc_allocThomas Gleixner
Remove the leftover of sparseirqs. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-10-16genirq: remove sparse irq codeThomas Gleixner
This code is not ready, but we need to rip it out instead of rebasing as we would lose the APIC/IO_APIC unification otherwise. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-10-16x86: remove sparse irq from KconfigThomas Gleixner
This code is not ready yet. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-10-16genirq: define nr_irqs for architectures with GENERIC_HARDIRQS=nThomas Gleixner
Revert the sparse irq changes in m68k/s390/sparc and just define nr_irqs as NR_IRQS for those architectures. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-10-16x86: apic - unify APIC_DIVISORCyrill Gorcunov
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/2008/10/9/425 Reported-by: Venkatesh Pallipad <venkatesh.pallipadi@intel.com> Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com> Acked-by: "Maciej W. Rozycki" <macro@linux-mips.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-16x86: sparse_irq: fix typo in debug print outYinghai Lu
Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-16x86: Add sysfs entries for UV v4Russ Anderson
Create /sys/firmware/sgi_uv sysfs entries for partition_id and coherence_id. Signed-off-by: Russ Anderson <rja@sgi.com> Signed-off-by: H. Peter Anvin <hpa@zytor.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-16x86: Add UV partition call v4Russ Anderson
Add a bios call to return partitioning related info. Signed-off-by: Russ Anderson <rja@sgi.com> Signed-off-by: H. Peter Anvin <hpa@zytor.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-16x86: Add UV bios call infrastructure v4Russ Anderson
Add the EFI callback function and associated wrapper code. Initialize SAL system table entry info at boot time. Signed-off-by: Russ Anderson <rja@sgi.com> Signed-off-by: Paul Jackson <pj@sgi.com> Acked-by: Huang Ying <ying.huang@intel.com> Signed-off-by: H. Peter Anvin <hpa@zytor.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-16x86: Add UV EFI table entry v4Russ Anderson
Look for a UV entry in the EFI tables. Signed-off-by: Russ Anderson <rja@sgi.com> Signed-off-by: Paul Jackson <pj@sgi.com> Acked-by: Huang Ying <ying.huang@intel.com> Signed-off-by: H. Peter Anvin <hpa@zytor.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-16x86, UV: add uv_setup_irq() and uv_teardown_irq() functions, v3, fixIngo Molnar
fix: arch/x86/kernel/uv_irq.c: In function 'uv_ack_apic': arch/x86/kernel/uv_irq.c:26: error: implicit declaration of function 'ack_APIC_irq' Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-16x86, UV: add uv_setup_irq() and uv_teardown_irq() functions, v3Dean Nelson
Provide a means for UV interrupt MMRs to be setup with the message to be sent when an MSI is raised. Signed-off-by: Dean Nelson <dcn@sgi.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-16hpet: clean up warningVenki Pallipadi
Fix the below compile warnings due to recent HPET MSI changes arch/x86/kernel/hpet.c:48: warning: 'hpet_devs' defined but not used arch/x86/kernel/hpet.c:50: warning: 'per_cpu__cpu_hpet_dev' defined but not used Reported-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-16x86: print out irq nr for msi/ht, v3Yinghai Lu
v2: fix hpet compiling error v3: Bjorn want to use dev_printk instead Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Cc: Bjorn Helgaas <bjorn.helgaas@hp.com> Cc: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-16x86: io-apic - interrupt remapping fixCyrill Gorcunov
Clean up obscure for() cycle with straight while() form Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com> Cc: "Maciej W. Rozycki" <macro@linux-mips.org> Acked-by: Suresh Siddha <suresh.b.siddha@intel.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-16x86: irq no should not use hex in /proc/interruptsYinghai Lu
Arjan van de Ven noticed that we changed IRQ numbers from decimal to hex in /proc/interrupts - that can break user-space utilities like irqbalanced. Reported-by: Arjan van de Ven <arjan@linux.intel.com> Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-16x86, uv: fix ordering of calls to uv_system_init & uv_cpu_initJack Steiner
Fix problem caused by reordering of the calls to uv_cpu_init() & uv_system_init. Originally, uv_cpu_init() was called AFTER uv_system_init. This order was recently broken as a side-effect of other patches. With this patch, initialization of cpu 0 is now done by the system_init call. Signed-off-by: Jack Steiner <steiner@sgi.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-16x86: io-apic - interrupt remapping fixCyrill Gorcunov
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: Cyrill Gorcunov <gorcunov@gmail.com> Cc: "Maciej W. Rozycki" <macro@linux-mips.org> Cc: Suresh Siddha <suresh.b.siddha@intel.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-16sparseirq: remove some debug print outYinghai Lu
Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Cc: Yinghai Lu <yhlu.kernel@gmail.com> Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-16x86: io-apic - do not use KERN_DEBUG marker too much, fixCyrill Gorcunov
Yinghai Lu reported: | > 0 add_pin_to_irq: irq 15 --> apic 0 pin 15 | > IOAPIC[0]: Set routing entry (8-15 -> 0x3f -> IRQ 15 Mode:0 Active:0) | > 8-16 8-17 8-18 8-19 8-20 8-21 8-22 8-23 (apicid-pin) not connected | > 9-0 9-1 9-2 9-3 9-4 9-5 9-6 9-7 9-8 9-9 9-10 9-11 9-12 9-13 9-14 9-15 | > 9-16 9-17 9-18 9-19 9-20 9-21 9-22 9-23 (apicid-pin) not connected | > | | only first one not connected at first, and ... here is a quick fix for this. Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-16x86: apic - fix unused vars warning in calibrate_APIC_clockCyrill Gorcunov
If we don't have CONFIG_X86_PM_TIMER=y compiler warns about unused variables. Move PM timer based calibration into a separate function and make the code cleaner and the compiler happy as well. Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-16x86: apic - skip writting ESR register if we dont have onCyrill Gorcunov
On 82489DX we don't have ESR register so we should not write it. Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-16x86: apic - lapic_setup_esr does not handle esr_disable - fix itCyrill Gorcunov
lapic_setup_esr doesn't handle esr_disable inquire. The error brought in during unification process. Fix it. Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-16x86: print out apic id in hex formatYinghai Lu
Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-16x86: io-apic - get rid of __DO_ACTION macroCyrill Gorcunov
Replace __DO_ACTION macro with io_apic_modify_irq function. This allow us to 'grep' definitions being hided by __DO_ACTION macro: __unmask_IO_APIC_irq __mask_IO_APIC_irq __mask_and_edge_IO_APIC_irq __unmask_and_level_IO_APIC_irq Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com> Acked-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-16x86: fix HPET compiler error when not using CONFIG_PCI_MSISteven Noonan
Added dummy function for hpet_setup_msi_irq(). Signed-off-by: Steven Noonan <steven@uplinklabs.net> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-16x86: using HPET in MSI mode and setting up per CPU HPET timers, fixVenki Pallipadi
On Sat, Sep 06, 2008 at 06:03:53AM -0700, Ingo Molnar wrote: > > it crashes two testsystems, the fault on a NULL pointer in hpet init, > with: > > initcall print_all_ICs+0x0/0x520 returned 0 after 26 msecs > calling hpet_late_init+0x0/0x1c0 > BUG: unable to handle kernel NULL pointer dereference at 000000000000008c > IP: [<ffffffff80d228be>] hpet_late_init+0xfe/0x1c0 > PGD 0 > Oops: 0000 [1] SMP > CPU 0 > Modules linked in: > Pid: 1, comm: swapper Not tainted 2.6.27-rc5 #29725 > RIP: 0010:[<ffffffff80d228be>] [<ffffffff80d228be>] hpet_late_init+0xfe/0x1c0 > RSP: 0018:ffff88003fa07dd0 EFLAGS: 00010246 > RAX: 0000000000000000 RBX: 0000000000000003 RCX: 0000000000000000 > RDX: ffffc20000000160 RSI: 0000000000000000 RDI: 0000000000000003 > RBP: ffff88003fa07e90 R08: 0000000000000000 R09: ffff88003fa07dd0 > R10: 0000000000000001 R11: 0000000000000000 R12: ffff88003fa07dd0 > R13: 0000000000000002 R14: ffffc20000000000 R15: 000000006f57e511 > FS: 0000000000000000(0000) GS:ffffffff80cf6a80(0000) knlGS:0000000000000000 > CS: 0010 DS: 0018 ES: 0018 CR0: 000000008005003b > CR2: 000000000000008c CR3: 0000000000201000 CR4: 00000000000006e0 > DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 > DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 > Process swapper (pid: 1, threadinfo ffff88003fa06000, task ffff88003fa08000) > Stack: 00000000fed00000 ffffc20000000000 0000000100000003 0000000800000002 > 0000000000000000 0000000000000000 0000000000000000 0000000000000000 > 0000000000000000 0000000000000000 0000000000000000 0000000000000000 > Call Trace: > [<ffffffff80d227c0>] ? hpet_late_init+0x0/0x1c0 > [<ffffffff80209045>] do_one_initcall+0x45/0x190 > [<ffffffff80296f39>] ? register_irq_proc+0x19/0xe0 > [<ffffffff80d0d140>] ? early_idt_handler+0x0/0x73 > [<ffffffff80d0dabc>] kernel_init+0x14c/0x1b0 > [<ffffffff80942ac1>] ? trace_hardirqs_on_thunk+0x3a/0x3f > [<ffffffff8020dbd9>] child_rip+0xa/0x11 > [<ffffffff8020ceee>] ? restore_args+0x0/0x30 > [<ffffffff80d0d970>] ? kernel_init+0x0/0x1b0 > [<ffffffff8020dbcf>] ? child_rip+0x0/0x11 > Code: 20 48 83 c1 01 48 39 f1 75 e3 44 89 e8 4c 8b 05 29 29 22 00 31 f6 48 8d 78 01 66 66 90 89 f0 48 8d 04 80 48 c1 e0 05 4a 8d 0c 00 <f6> 81 8c 00 00 00 08 74 26 8b 81 80 00 00 00 8b 91 88 00 00 00 > RIP [<ffffffff80d228be>] hpet_late_init+0xfe/0x1c0 > RSP <ffff88003fa07dd0> > CR2: 000000000000008c > Kernel panic - not syncing: Fatal exception There was one code path, with CONFIG_PCI_MSI disabled, where we were accessing hpet_devs without initialization. That resulted in the above crash. The change below adds a check for hpet_devs. Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Signed-off-by: Shaohua Li <shaohua.li@intel.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-16x86: io-apic - do not use KERN_DEBUG marker too muchCyrill Gorcunov
Do not use KERN_DEBUG several times on the same line being printed. Introduced by mine previous patch, sorry. Reported-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-16x86: lapic address print out like io apic addrYinghai Lu
Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-16x86: io-apic - code style cleaning for setup_IO_APIC_irqsCyrill Gorcunov
By changing printout form we are able to shrink (and clean up) code a bit. Former printout example: init IO_APIC IRQs IO-APIC (apicid-pin) 1-1, 1-2, 1-3 not connected. IO-APIC (apicid-pin) 2-1, 2-2, 2-3 not connected. New printout example: init IO_APIC IRQs 1-1 1-2 1-3 (apicid-pin) not connected 2-1 2-2 2-3 (apicid-pin) not connected Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-16x86: HPET_MSI Initialise per-cpu HPET timersvenkatesh.pallipadi@intel.com
Initialize a per CPU HPET MSI timer when possible. We retain the HPET timer 0 (IRQ 0) and timer 1 (IRQ 8) as is when legacy mode is being used. We setup the remaining HPET timers as per CPU MSI based timers. This per CPU timer will eliminate the need for timer broadcasting with IRQ 0 when there is non-functional LAPIC timer across CPU deep C-states. If there are more CPUs than number of available timers, CPUs that do not find any timer to use will continue using LAPIC and IRQ 0 broadcast. Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Signed-off-by: Shaohua Li <shaohua.li@intel.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-16x86: HPET_MSI Basic HPET_MSI setup code, cleanupsIngo Molnar
small style cleanups. Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-16x86: HPET_MSI Basic HPET_MSI setup codevenkatesh.pallipadi@intel.com
Basic HPET MSI setup code. Routines to perform basic MSI read write in HPET memory map and setting up irq_chip for HPET MSI. Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Signed-off-by: Shaohua Li <shaohua.li@intel.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-16x86: HPET_MSI Refactor code in preparation for HPET_MSIvenkatesh.pallipadi@intel.com
Preparatory patch before the actual HPET MSI changes. Sets up hpet_set_mode and hpet_next_event for the MSI related changes. Just the code refactoring and should be zero functional change. Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Signed-off-by: Shaohua Li <shaohua.li@intel.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-16x86: io-apic - declare irq_cfg_lock for SPARSE_IRQ onlyCyrill Gorcunov
We use irq_cfg_lock lock in SPARSE_IRQ only context so move it under #ifdef and compiler will be happy. Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-16x86: io-apic - use ARRAY_SIZE macroCyrill Gorcunov
Make the code width a bit shorter with ARRAY_SIZE macro. Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-16x86: print out if acpi want physical flat of allYinghai Lu
Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-16x2apic: fix reserved APIC register accesses in print_local_APIC()Yinghai Lu
APIC_ARBPRI is a reserved register for XAPIC and beyond. APIC_RRR is a reserved register except for 82489DX, APIC for Pentium processors. APIC_EOI is a write only register. APIC_DFR is reserved in x2apic mode. Access to these registers in x2apic will result in #GP fault. Fix these apic register accesses. Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com> Cc: Maciej W. Rozycki <macro@linux-mips.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-16sparseirq: export nr_irqs on m68k/sparc/s390Ingo Molnar
Stephen Rothwell reported such build failures on m68k/sparc/s390: > ERROR: "nr_irqs" [drivers/net/hamradio/baycom_ser_fdx.ko] undefined! > ERROR: "nr_irqs" [drivers/net/3c59x.ko] undefined! export nr_irqs on these architectures too. Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-16x86: apic - unify smp_spurious/error_interrupt declarationCyrill Gorcunov
According to entry_64.S we do pass pt_regs pointer into interrupt handlers but don't use them. So we safely may merge the declarations. Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-16x86: let 64 bit to use 32 bit calibrate_apic_clockYinghai Lu
Use the 32-bit APIC calibration code - it's more mature. Signed-of-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-16x86: rename apic_32.c and apic_64.c to apic.cYinghai Lu
Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-16x86: apic copy apic_64.c to apic_32.cYinghai Lu
Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
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