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* [PATCH] i386/x86-64/ia64: Move polling flag into thread_info_statusAndi Kleen2006-06-26
| | | | | | | | | | | | | | | | | | During some profiling I noticed that default_idle causes a lot of memory traffic. I think that is caused by the atomic operations to clear/set the polling flag in thread_info. There is actually no reason to make this atomic - only the idle thread does it to itself, other CPUs only read it. So I moved it into ti->status. Converted i386/x86-64/ia64 for now because that was the easiest way to fix ACPI which also manipulates these flags in its idle function. Cc: Nick Piggin <npiggin@novell.com> Cc: Tony Luck <tony.luck@intel.com> Cc: Len Brown <len.brown@intel.com> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] x86_64: Remove bogus RED-PEN comment in signal.cAndi Kleen2006-06-26
| | | | | | | | | No red zone possible/needed on the alternative stack. It caused confusion. Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] x86_64: check_addr() cleanupsAndrew Morton2006-06-26
| | | | | | | | | | | | | - Use DMA_32BIT_MASK - Use %z for size_t - 80-cols Cc: Andi Kleen <ak@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] x86_64: miscellaneous mm/init.c fixesJan Beulich2006-06-26
| | | | | | | | | | | - fix an off-by-one error in phys_pmd_init() - prevent phys_pmd_init() from removing mappings established earlier - fix the direct mapping early printk to in fact show the end of the range - remove an apparently orphan comment Signed-off-by: Jan Beulich <jbeulich@novell.com> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] x86_64: Mark mce_amd cpu notifier __cpuinit/__cpuinitdataAndi Kleen2006-06-26
| | | | | | Cc: Jacob Shin <jacob.shin@amd.com> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] x86_64: mce_amd cleanupJacob Shin2006-06-26
| | | | | | | | | Clean up mce_amd.c for readability and remove code no longer needed. Signed-off-by: Jacob Shin <jacob.shin@amd.com> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] x86_64: mce_amd support for family 0x10 processorsJacob Shin2006-06-26
| | | | | | | | | | | | Add support for mce threshold registers found in future AMD family 0x10 processors. Backwards compatible with family 0xF hardware. AK: fixed build on !SMP Signed-off-by: Jacob Shin <jacob.shin@amd.com> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] x86_64: mce_amd relocate sysfs filesJacob Shin2006-06-26
| | | | | | | | | | | | Get rid of /sys/devices/system/threshold directory and move mce_amd thresholding files into the machine sysfs directory -- /sys/devices/system/machinecheck. AK: Fixed warning Signed-off-by: Jacob Shin <jacob.shin@amd.com> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] x86_64: apic support for extended apic interruptJacob Shin2006-06-26
| | | | | | | | Add support for extended APIC LVT found in future AMD processors. Signed-off-by: Jacob Shin <jacob.shin@amd.com> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] x86_64: Move VM86 config into arch/i386/KconfigAndi Kleen2006-06-26
| | | | | | | | | | Architecture specific configs like this have no business at all in init/Kconfig. This prevents it from being set on x86-64 Pointed out by H.Peter Anvin Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] i386/x86-64: Fix isoimage when syslinux is in /usr/shareAndi Kleen2006-06-26
| | | | | | | | It's like this on SUSE systems. Cc: hpa@zytor.com Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] x86_64: Update copyright in time.cVojtech Pavlik2006-06-26
| | | | | | | | Update my copyright dates in arch/x86-64/kernel/time.c Signed-off-by: Vojtech Pavlik <vojtech@suse.cz> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] x86_64: Explain why HPET T0_CMP register is written twiceVojtech Pavlik2006-06-26
| | | | | | | | | | | | | | After writing the CFG register, the first value written to the T0_CMP register is the value at which next interrupt should be triggered, every value after that sets the period of the interrupt. For that reason, the code needs to write the value twice - to set both the phase and period. [AK: I had already figured it out by myself, but it's still useful to have a comment for this.] Signed-off-by: Vojtech Pavlik <vojtech@suse.cz> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] x86_64: Make use of the *PER* constants in time.cVojtech Pavlik2006-06-26
| | | | | | | | | | This patch makes use of the newly added conversion constants in time.h to x86-64 time.c. The code gets significantly easier to understand. Signed-off-by: Vojtech Pavlik <vojtech@suse.cz> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] x86_64: Remove hack to manually enable HPET on AMD8111 southbridgesVojtech Pavlik2006-06-26
| | | | | | | | | Remove #ifdefed code to manually enable HPET on AMD8111, where the BIOS doesn't have ACPI HPET tables and doesn't enable it for us. Signed-off-by: Vojtech Pavlik <vojtech@suse.cz> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] x86_64: Add X86_FEATURE_RDTSCP, fix rdtscp in /proc/cpuinfoVojtech Pavlik2006-06-26
| | | | | | | | | | This patch adds the X86_FEATURE_RDTSCP #define, so that kernel code can check for the feature easily and also fixes the location of the "rdtscp" string in the cpuinfo tables. Signed-off-by: Vojtech Pavlik <vojtech@suse.cz> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] x86_64: Rename oem_force_hpet_timer to apic_is_clustered_boxVojtech Pavlik2006-06-26
| | | | | | | | | Rename oem_force_hpet_timer to apic_is_clustered_box, to give the function a better fitting name - it really isn't at all about HPET. Signed-off-by: Vojtech Pavlik <vojtech@suse.cz> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] x86_64: Add useful constants to time.hVojtech Pavlik2006-06-26
| | | | | | | | | | In timekeeping code, one often does need to use conversion constants. Naming these leads to code that's easier to understand, showing the reader between which units the conversion is made. Signed-off-by: Vojtech Pavlik <vojtech@suse.cz> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] x86_64: moving phys_proc_id and cpu_core_id to cpuinfo_x86Rohit Seth2006-06-26
| | | | | | | | | | Most of the fields of cpuinfo are defined in cpuinfo_x86 structure. This patch moves the phys_proc_id and cpu_core_id for each processor to cpuinfo_x86 structure as well. Signed-off-by: Rohit Seth <rohitseth@google.com> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] x86_64: Calgary IOMMU - Calgary specific bitsJon Mason2006-06-26
| | | | | | | | | | | | | | | | | | | This patch hooks Calgary into the build, the x86-64 IOMMU initialization paths, and introduces the Calgary specific bits. The implementation draws inspiration from both PPC (which has support for the same chip but requires firmware support which we don't have on x86-64) and gart. Calgary is different from gart in that it support a translation table per PHB, as opposed to the single gart aperture. Changes from previous version: * Addition of boot-time disablement for bus-level translation/isolation (e.g, enable userspace DMA for things like X) * Usage of newer IOMMU abstraction functions Signed-off-by: Muli Ben-Yehuda <muli@il.ibm.com> Signed-off-by: Jon Mason <jdmason@us.ibm.com> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] x86_64: Calgary IOMMU - IOMMU abstractionsJon Mason2006-06-26
| | | | | | | | | | | | | | | | | | | | | | | | | This patch creates a new interface for IOMMUs by adding a centralized location for IOMMU allocation (for translation tables/apertures) and IOMMU initialization. In creating these, code was moved around for abstraction, uniformity, and consiceness. Take note of the move of the iommu_setup bootarg parsing code to __setup. This is enabled by moving back the location of the aperture allocation/detection to mem init (which while ugly, was already the location of the swiotlb_init). While a slight departure from the previous patch, I belive this provides the true intention of the previous versions of the patch which changed this code. It also makes the addition of the upcoming calgary code much cleaner than previous patches. [AK: Removed one broken change. iommu_setup still has to be called early] Signed-off-by: Muli Ben-Yehuda <muli@il.ibm.com> Signed-off-by: Jon Mason <jdmason@us.ibm.com> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] x86_64: Calgary IOMMU - move valid_dma_direction into the callersJon Mason2006-06-26
| | | | | | | | | | Based on Andi Kleen's comments on the original Calgary patch, move valid_dma_direction into the calling functions. Signed-off-by: Muli Ben-Yehuda <muli@il.ibm.com> Signed-off-by: Jon Mason <jdmason@us.ibm.com> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] x86_64: Calgary IOMMU - introduce iommu_detectedJon Mason2006-06-26
| | | | | | | | | | | | swiotlb relies on the gart specific iommu_aperture variable to know if we discovered a hardware IOMMU before swiotlb initialization. Introduce iommu_detected to do the same thing, but in a HW IOMMU neutral manner, in preparation for adding the Calgary HW IOMMU. Signed-Off-By: Muli Ben-Yehuda <muli@il.ibm.com> Signed-Off-By: Jon Mason <jdmason@us.ibm.com> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] x86_64: Change assembly to use regular cpuid_count macroRohit Seth2006-06-26
| | | | | | | | | | | Minor cleanup patch: Replacing the asm statement with cpuid_count macro(which already provides the same functionality). Signed-off-by: Rohit Seth <rohitseth@google.com> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] x86_64: use halt() instead of raw inline assemblyJan Beulich2006-06-26
| | | | | | | | Use abstractions whenever possible. Signed-off-by: Jan Beulich <jbeulich@novell.com> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] x86_64: Get rid of pud_offset_k / __pud_offset_kAndi Kleen2006-06-26
| | | | | | | | pud_offset_k() equivalent to pud_offset() now. Pointed out by Jan Beulich Similar for __pud_offset_ok, which needs a small change in the callers. Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] i386/x86-64: Consolidate arch/{i386,x86_64}/boot/compressed/misc.cCarl-Daniel Hailfinger2006-06-26
| | | | | | | | | Clean up arch/{i386,x86_64}/boot/compressed/misc.c a bit to reduce their differences. Should have zero effect on code generation. Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] x86_64: allow unwinder to build without module supportJan Beulich2006-06-26
| | | | | | | | Add proper conditionals to be able to build with CONFIG_MODULES=n. Signed-off-by: Jan Beulich <jbeulich@novell.com> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] i386/x86-64: fall back to old-style call trace if no unwindingJan Beulich2006-06-26
| | | | | | | | | | | | If no unwinding is possible at all for a certain exception instance, fall back to the old style call trace instead of not showing any trace at all. Also, allow setting the stack trace mode at the command line. Signed-off-by: Jan Beulich <jbeulich@novell.com> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] i386: reliable stack trace support i386 entry.SJan Beulich2006-06-26
| | | | | | | | | To increase the usefulness of reliable stack unwinding, this adds CFI unwind annotations to many low-level i386 routines. Signed-off-by: Jan Beulich <jbeulich@novell.com> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] i386: reliable stack trace support (i386)Jan Beulich2006-06-26
| | | | | | | | | | These are the i386-specific pieces to enable reliable stack traces. This is going to be even more useful once CFI annotations get added to he assembly code, namely to entry.S. Signed-off-by: Jan Beulich <jbeulich@novell.com> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] x86_64: reliable stack trace support (x86-64 syscallJan Beulich2006-06-26
| | | | | | | | | | Adjust the CFA offset for 64- and 32-bit syscall entries so that the five slots pre-subtracted from the stack pointer do not appear to reside outside of the current frame. Signed-off-by: Jan Beulich <jbeulich@novell.com> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] x86_64: reliable stack trace support (x86-64 IRQ stackJan Beulich2006-06-26
| | | | | | | | | | | | Change the switching to/from the IRQ stack so that unwind annotations can be added for it without requiring CFA expressions. AK: I cleaned it up a bit, making it unconditional and removing the obsolete DEBUG_INFO full frame code. Signed-off-by: Jan Beulich <jbeulich@novell.com> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] x86_64: reliable stack trace support (x86-64)Jan Beulich2006-06-26
| | | | | | | | | | | These are the x86_64-specific pieces to enable reliable stack traces. The only restriction with this is that it currently cannot unwind across the interrupt->normal stack boundary, as that transition is lacking proper annotation. Signed-off-by: Jan Beulich <jbeulich@novell.com> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] x86_64: reliable stack trace supportJan Beulich2006-06-26
| | | | | | | | | | | | | These are the generic bits needed to enable reliable stack traces based on Dwarf2-like (.eh_frame) unwind information. Subsequent patches will enable x86-64 and i386 to make use of this. Thanks to Andi Kleen and Ingo Molnar, who pointed out several possibilities for improvement. Signed-off-by: Jan Beulich <jbeulich@novell.com> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] x86_64: x86_86 msi miss one entry handlerbibo,mao2006-06-26
| | | | | | | | | | | In x86_64 architecture, if device driver with msi function gets 0xee vector by assign_irq_vector() function, system will crash if this interrupt happens. It is because 0xee interrupt entry is empty. This patch modifies this. This patch is based on 2.6.17-rc6. Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] x86_64: Rename IOMMU option, fix help and mark option embedded.Andi Kleen2006-06-26
| | | | | | | | | | | | | | | | | | - Rename the GART_IOMMU option to IOMMU to make clear it's not just for AMD - Rewrite the help text to better emphatise this fact - Make it an embedded option because too many people get it wrong. To my astonishment I discovered the aacraid driver tests this symbol directly. This looks quite broken to me - it's an internal implementation detail of the PCI DMA API. Can the maintainer please clarify what this test was intended to do? Cc: linux-scsi@vger.kernel.org Cc: alan@redhat.com Cc: markh@osdl.org Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] x86_64: Make sure is_compat_task works earlyAndi Kleen2006-06-26
| | | | | | | | Previously it would only work in the first 32bit system call, not during early process setup. Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] x86_64: fix vector_lock deadlock in io_apic.cIngo Molnar2006-06-26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix a potential deadlock scenario introduced by io_apic.c's new vector_lock on i386 and x86_64. Found by the locking correctness validator. The patch was boot-tested on x86. For details of the deadlock scenario, see the validator output: ====================================================== [ BUG: hard-safe -> hard-unsafe lock order detected! ] ------------------------------------------------------ idle/1 [HC0[0]:SC0[0]:HE0:SE1] is trying to acquire: (msi_lock){....}, at: [<c04ff8d2>] startup_msi_irq_wo_maskbit+0x10/0x35 and this task is already holding: (&irq_desc[i].lock){++..}, at: [<c015b924>] probe_irq_on+0x36/0x107 which would create a new lock dependency: (&irq_desc[i].lock){++..} -> (msi_lock){....} but this new dependency connects a hard-irq-safe lock: (&irq_desc[i].lock){++..} ... which became hard-irq-safe at: [<c01468c4>] lockdep_acquire+0x68/0x84 [<c10485e9>] _spin_lock+0x21/0x2f [<c015aff5>] __do_IRQ+0x3d/0x113 [<c01062d3>] do_IRQ+0x8c/0xad to a hard-irq-unsafe lock: (vector_lock){--..} ... which became hard-irq-unsafe at: ... [<c01468c4>] lockdep_acquire+0x68/0x84 [<c10485e9>] _spin_lock+0x21/0x2f [<c011b5e8>] assign_irq_vector+0x34/0xc8 [<c1aa82fa>] setup_IO_APIC+0x45a/0xcff [<c1aa56e3>] smp_prepare_cpus+0x5ea/0x8aa [<c010033f>] init+0x32/0x2cb [<c0102005>] kernel_thread_helper+0x5/0xb which could potentially lead to deadlocks! other info that might help us debug this: 3 locks held by idle/1: #0: (port_mutex){--..}, at: [<c067070d>] uart_add_one_port+0x61/0x289 #1: (&state->mutex){--..}, at: [<c067071f>] uart_add_one_port+0x73/0x289 #2: (&irq_desc[i].lock){++..}, at: [<c015b924>] probe_irq_on+0x36/0x107 the hard-irq-safe lock's dependencies: -> (&irq_desc[i].lock){++..} ops: 9861 { initial-use at: [<c01468c4>] lockdep_acquire+0x68/0x84 [<c10487f4>] _spin_lock_irqsave+0x2a/0x3a [<c015b415>] setup_irq+0x9b/0x14d [<c1aaa4c4>] time_init_hook+0xf/0x11 [<c1a9f320>] time_init+0x44/0x46 [<c1a9955f>] start_kernel+0x191/0x38f [<c0100210>] 0xc0100210 in-hardirq-W at: [<c01468c4>] lockdep_acquire+0x68/0x84 [<c10485e9>] _spin_lock+0x21/0x2f [<c015aff5>] __do_IRQ+0x3d/0x113 [<c01062d3>] do_IRQ+0x8c/0xad in-softirq-W at: [<c01468c4>] lockdep_acquire+0x68/0x84 [<c10485e9>] _spin_lock+0x21/0x2f [<c015aff5>] __do_IRQ+0x3d/0x113 [<c01062d3>] do_IRQ+0x8c/0xad } ... key at: [<c1ea31e0>] irq_desc_lock_type+0x0/0x20 -> (i8259A_lock){++..} ops: 5149 { initial-use at: [<c01468c4>] lockdep_acquire+0x68/0x84 [<c10487f4>] _spin_lock_irqsave+0x2a/0x3a [<c0108090>] init_8259A+0x11/0x8f [<c1aa0d22>] init_ISA_irqs+0x12/0x4d [<c1aaa4f0>] pre_intr_init_hook+0x8/0xa [<c1aa0cb9>] init_IRQ+0xe/0x65 [<c1a99546>] start_kernel+0x178/0x38f [<c0100210>] 0xc0100210 in-hardirq-W at: [<c01468c4>] lockdep_acquire+0x68/0x84 [<c10487f4>] _spin_lock_irqsave+0x2a/0x3a [<c0107fb0>] mask_and_ack_8259A+0x1b/0xcc [<c015b007>] __do_IRQ+0x4f/0x113 [<c01062d3>] do_IRQ+0x8c/0xad in-softirq-W at: [<c01468c4>] lockdep_acquire+0x68/0x84 [<c10487f4>] _spin_lock_irqsave+0x2a/0x3a [<c0107fb0>] mask_and_ack_8259A+0x1b/0xcc [<c015b007>] __do_IRQ+0x4f/0x113 [<c01062d3>] do_IRQ+0x8c/0xad } ... key at: [<c142f174>] i8259A_lock+0x14/0x40 ... acquired at: [<c01468c4>] lockdep_acquire+0x68/0x84 [<c10487f4>] _spin_lock_irqsave+0x2a/0x3a [<c0107eb2>] enable_8259A_irq+0x10/0x47 [<c0107f12>] startup_8259A_irq+0x8/0xc [<c015b45e>] setup_irq+0xe4/0x14d [<c1aaa4c4>] time_init_hook+0xf/0x11 [<c1a9f320>] time_init+0x44/0x46 [<c1a9955f>] start_kernel+0x191/0x38f [<c0100210>] 0xc0100210 -> (ioapic_lock){+...} ops: 122 { initial-use at: [<c01468c4>] lockdep_acquire+0x68/0x84 [<c10487f4>] _spin_lock_irqsave+0x2a/0x3a [<c1aa71db>] io_apic_get_version+0x16/0x55 [<c1aa5c73>] mp_register_ioapic+0xc6/0x127 [<c1aa382e>] acpi_parse_ioapic+0x2d/0x39 [<c1abe031>] acpi_table_parse_madt_family+0xb4/0x100 [<c1abe093>] acpi_table_parse_madt+0x16/0x18 [<c1aa3c8a>] acpi_boot_init+0x132/0x251 [<c1aa08ea>] setup_arch+0xd36/0xe37 [<c1a99434>] start_kernel+0x66/0x38f [<c0100210>] 0xc0100210 in-hardirq-W at: [<c01468c4>] lockdep_acquire+0x68/0x84 [<c10487f4>] _spin_lock_irqsave+0x2a/0x3a [<c011bce1>] mask_IO_APIC_irq+0x11/0x31 [<c011c5cc>] ack_edge_ioapic_vector+0x31/0x41 [<c015b007>] __do_IRQ+0x4f/0x113 [<c01062d3>] do_IRQ+0x8c/0xad } ... key at: [<c1432514>] ioapic_lock+0x14/0x3c -> (i8259A_lock){++..} ops: 5149 { initial-use at: [<c01468c4>] lockdep_acquire+0x68/0x84 [<c10487f4>] _spin_lock_irqsave+0x2a/0x3a [<c0108090>] init_8259A+0x11/0x8f [<c1aa0d22>] init_ISA_irqs+0x12/0x4d [<c1aaa4f0>] pre_intr_init_hook+0x8/0xa [<c1aa0cb9>] init_IRQ+0xe/0x65 [<c1a99546>] start_kernel+0x178/0x38f [<c0100210>] 0xc0100210 in-hardirq-W at: [<c01468c4>] lockdep_acquire+0x68/0x84 [<c10487f4>] _spin_lock_irqsave+0x2a/0x3a [<c0107fb0>] mask_and_ack_8259A+0x1b/0xcc [<c015b007>] __do_IRQ+0x4f/0x113 [<c01062d3>] do_IRQ+0x8c/0xad in-softirq-W at: [<c01468c4>] lockdep_acquire+0x68/0x84 [<c10487f4>] _spin_lock_irqsave+0x2a/0x3a [<c0107fb0>] mask_and_ack_8259A+0x1b/0xcc [<c015b007>] __do_IRQ+0x4f/0x113 [<c01062d3>] do_IRQ+0x8c/0xad } ... key at: [<c142f174>] i8259A_lock+0x14/0x40 ... acquired at: [<c01468c4>] lockdep_acquire+0x68/0x84 [<c10487f4>] _spin_lock_irqsave+0x2a/0x3a [<c0107e6b>] disable_8259A_irq+0x10/0x47 [<c011bdbd>] startup_edge_ioapic_vector+0x31/0x58 [<c015b45e>] setup_irq+0xe4/0x14d [<c015b5a1>] request_irq+0xda/0xf9 [<c1ac983a>] rtc_init+0x6a/0x1a7 [<c0100457>] init+0x14a/0x2cb [<c0102005>] kernel_thread_helper+0x5/0xb ... acquired at: [<c01468c4>] lockdep_acquire+0x68/0x84 [<c10487f4>] _spin_lock_irqsave+0x2a/0x3a [<c011bce1>] mask_IO_APIC_irq+0x11/0x31 [<c011c5cc>] ack_edge_ioapic_vector+0x31/0x41 [<c015b007>] __do_IRQ+0x4f/0x113 [<c01062d3>] do_IRQ+0x8c/0xad the hard-irq-unsafe lock's dependencies: -> (vector_lock){--..} ops: 31 { initial-use at: [<c01468c4>] lockdep_acquire+0x68/0x84 [<c10485e9>] _spin_lock+0x21/0x2f [<c011b5e8>] assign_irq_vector+0x34/0xc8 [<c1aa82fa>] setup_IO_APIC+0x45a/0xcff [<c1aa56e3>] smp_prepare_cpus+0x5ea/0x8aa [<c010033f>] init+0x32/0x2cb [<c0102005>] kernel_thread_helper+0x5/0xb softirq-on-W at: [<c01468c4>] lockdep_acquire+0x68/0x84 [<c10485e9>] _spin_lock+0x21/0x2f [<c011b5e8>] assign_irq_vector+0x34/0xc8 [<c1aa82fa>] setup_IO_APIC+0x45a/0xcff [<c1aa56e3>] smp_prepare_cpus+0x5ea/0x8aa [<c010033f>] init+0x32/0x2cb [<c0102005>] kernel_thread_helper+0x5/0xb hardirq-on-W at: [<c01468c4>] lockdep_acquire+0x68/0x84 [<c10485e9>] _spin_lock+0x21/0x2f [<c011b5e8>] assign_irq_vector+0x34/0xc8 [<c1aa82fa>] setup_IO_APIC+0x45a/0xcff [<c1aa56e3>] smp_prepare_cpus+0x5ea/0x8aa [<c010033f>] init+0x32/0x2cb [<c0102005>] kernel_thread_helper+0x5/0xb } ... key at: [<c1432574>] vector_lock+0x14/0x3c stack backtrace: [<c0104f36>] show_trace+0xd/0xf [<c010543e>] dump_stack+0x17/0x19 [<c0144e34>] check_usage+0x1f6/0x203 [<c0146395>] __lockdep_acquire+0x8c2/0xaa5 [<c01468c4>] lockdep_acquire+0x68/0x84 [<c10487f4>] _spin_lock_irqsave+0x2a/0x3a [<c04ff8d2>] startup_msi_irq_wo_maskbit+0x10/0x35 [<c015b932>] probe_irq_on+0x44/0x107 [<c0673d58>] serial8250_config_port+0x84b/0x986 [<c06707b1>] uart_add_one_port+0x105/0x289 [<c1ace54b>] serial8250_init+0xc3/0x10a [<c0100457>] init+0x14a/0x2cb [<c0102005>] kernel_thread_helper+0x5/0xb Signed-off-by: Ingo Molnar <mingo@elte.hu> Cc: Jan Beulich <jbeulich@novell.com> Cc: Andi Kleen <ak@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] x86_64: remove unused gart header fileJon Mason2006-06-26
| | | | | | | | | | include/asm-x86_64/gart-mapping.h is only ever used in arch/x86_64/kernel/setup.c and none of its contents are referenced. Looks to be leftover cruft not removed in the dma_ops patch. Signed-off-by: Jon Mason <jdmason@us.ibm.com> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] x86_64: Optimize bitmap_weight for small bitmapsAndi Kleen2006-06-26
| | | | | | | | Use inline code bitmaps <= BITS_PER_LONG in bitmap_weight. This gives _much_ better code. Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] x86_64: Remove ia32_sys_call_table exportAndi Kleen2006-06-26
| | | | | | | | | | | | | | It was originally added for 2.4 oprofile, but 2.6 oprofile doesn't need that anymore. Shouldn't be any use in tree anymore and it doesn't make much sense to export the ia32 syscalls when the main syscalls are not exported. I think Adrian Bunk asked for removing it several times. Also included hunk from Adrian to remove the .globl ia32_sys_call_table Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] x86_64: Remove long obsolete CVSAndi Kleen2006-06-26
| | | | | | | | Early development of x86-64 Linux was in CVS, but that hasn't been the case for a long time now. Remove the obsolete $Id$s. Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] x86_64: nmi watchdog header cleanupDon Zickus2006-06-26
| | | | | | | | Misc header cleanup for nmi watchdog. Signed-off-by: Don Zickus <dzickus@redhat.com> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] x86_64: fix unlikely profiling & vsyscalls on x86_64Ingo Molnar2006-06-26
| | | | | | | | fix unlikely profiling in vsyscalls ... Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] x86_64: add END()/ENDPROC() annotations to entry.SJan Beulich2006-06-26
| | | | | | | | | Since END()/ENDPROC() are now available, add respective annotations to x86_64's entry.S. This should help debugging activities. Signed-off-by: Jan Beulich <jbeulich@novell.com> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] x86_64: Add compat_printk and sysctl to turn off compat layer warningsAndi Kleen2006-06-26
| | | | | | | | | Sometimes e.g. with crashme the compat layer warnings can be noisy. Add a way to turn them off by gating all output through compat_printk that checks a global sysctl. The default is not changed. Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] x86_64: Use -ENODEV in IOMMU initializationAndi Kleen2006-06-26
| | | | | | | | | | | Fix initcall at 0xffffffff806c5b89: pci_iommu_init+0x0/0x53c(): returned with error code -1 Return -ENODEV instead when the IOMMU is not used. Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] i386/x86-64: simplify ioapic_register_intr()Jan Beulich2006-06-26
| | | | | | | | Simplify (remove duplication of) code in ioapic_register_intr(). Signed-off-by: Jan Beulich <jbeulich@novell.com> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] x86_64: serialize assign_irq_vector() use of static variablesJan Beulich2006-06-26
| | | | | | | | | Since assign_irq_vector() can be called at runtime, its access of static variables should be protected by a lock. Signed-off-by: Jan Beulich <jbeulich@novell.com> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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