summaryrefslogtreecommitdiffstats
path: root/arch/i386/kernel
Commit message (Collapse)AuthorAgeFilesLines
* [PATCH] x86: cpu_init(): avoid GFP_KERNEL allocation while atomicShaohua Li2006-06-272-1/+20
| | | | | | | | | | | | | | | The patch fixes two issues: 1. cpu_init is called with interrupt disabled. Allocating gdt table there isn't good at runtime. 2. gdt table page cause memory leak in CPU hotplug case. Signed-off-by: Shaohua Li <shaohua.li@intel.com> Cc: Ashok Raj <ashok.raj@intel.com> Cc: Zachary Amsden <zach@vmware.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] node hotplug: register cpu: remove node structKAMEZAWA Hiroyuki2006-06-271-19/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | With Goto-san's patch, we can add new pgdat/node at runtime. I'm now considering node-hot-add with cpu + memory on ACPI. I found acpi container, which describes node, could evaluate cpu before memory. This means cpu-hot-add occurs before memory hot add. In most part, cpu-hot-add doesn't depend on node hot add. But register_cpu(), which creates symbolic link from node to cpu, requires that node should be onlined before register_cpu(). When a node is onlined, its pgdat should be there. This patch-set holds off creating symbolic link from node to cpu until node is onlined. This removes node arguments from register_cpu(). Now, register_cpu() requires 'struct node' as its argument. But the array of struct node is now unified in driver/base/node.c now (By Goto's node hotplug patch). We can get struct node in generic way. So, this argument is not necessary now. This patch also guarantees add cpu under node only when node is onlined. It is necessary for node-hot-add vs. cpu-hot-add patch following this. Moreover, register_cpu calculates cpu->node_id by cpu_to_node() without regard to its 'struct node *root' argument. This patch removes it. Also modify callers of register_cpu()/unregister_cpu, whose args are changed by register-cpu-remove-node-struct patch. [Brice.Goglin@ens-lyon.org: fix it] Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: Yasunori Goto <y-goto@jp.fujitsu.com> Cc: Ashok Raj <ashok.raj@intel.com> Cc: Dave Hansen <haveblue@us.ibm.com> Signed-off-by: Brice Goglin <Brice.Goglin@ens-lyon.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] Register sysfs file for hotplugged new nodeYasunori Goto2006-06-271-6/+3
| | | | | | | | | | | | | | | When new node becomes enable by hot-add, new sysfs file must be created for new node. So, if new node is enabled by add_memory(), register_one_node() is called to create it. In addition, I386's arch_register_node() and a part of register_nodes() of powerpc are consolidated to register_one_node() as a generic_code(). This is tested by Tiger4(IPF) with node hot-plug emulation. Signed-off-by: Keiichiro Tokunaga <tokuanga.keiich@jp.fujitsu.com> Signed-off-by: Yasunori Goto <y-goto@jp.fujitsu.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* Merge git://git.kernel.org/pub/scm/linux/kernel/git/bunk/trivialLinus Torvalds2006-06-264-5/+5
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/bunk/trivial: typo fixes Clean up 'inline is not at beginning' warnings for usb storage Storage class should be first i386: Trivial typo fixes ixj: make ixj_set_tone_off() static spelling fixes fix paniced->panicked typos Spelling fixes for Documentation/atomic_ops.txt move acknowledgment for Mark Adler to CREDITS remove the bouncing email address of David Campbell
| * Storage class should be firstTobias Klauser2006-06-261-2/+2
| | | | | | | | | | | | | | Storage class should be before const Signed-off-by: Tobias Klauser <tklauser@nuerscht.ch> Signed-off-by: Adrian Bunk <bunk@stusta.de>
| * spelling fixesAndreas Mohr2006-06-262-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | acquired (aquired) contiguous (contigious) successful (succesful, succesfull) surprise (suprise) whether (weather) some other misspellings Signed-off-by: Andreas Mohr <andi@lisas.de> Signed-off-by: Adrian Bunk <bunk@stusta.de>
| * fix paniced->panicked typosLee Revell2006-06-261-1/+1
| | | | | | | | | | | | | | | | | | In a testament to the utter simplicity and logic of the English language ;-), I found a single correct use - in kernel/panic.c - and 10-15 incorrect ones. Signed-Off-By: Lee Revell <rlrevell@joe-job.com> Signed-off-by: Adrian Bunk <bunk@stusta.de>
* | Merge master.kernel.org:/pub/scm/linux/kernel/git/herbert/crypto-2.6Linus Torvalds2006-06-261-0/+3
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * master.kernel.org:/pub/scm/linux/kernel/git/herbert/crypto-2.6: [CRYPTO] tcrypt: Forbid tcrypt from being built-in [CRYPTO] aes: Add wrappers for assembly routines [CRYPTO] tcrypt: Speed benchmark support for digest algorithms [CRYPTO] tcrypt: Return -EAGAIN from module_init() [CRYPTO] api: Allow replacement when registering new algorithms [CRYPTO] api: Removed const from cra_name/cra_driver_name [CRYPTO] api: Added cra_init/cra_exit [CRYPTO] api: Fixed incorrect passing of context instead of tfm [CRYPTO] padlock: Rearrange context structure to reduce code size [CRYPTO] all: Pass tfm instead of ctx to algorithms [CRYPTO] digest: Remove unnecessary zeroing during init [CRYPTO] aes-i586: Get rid of useless function wrappers [CRYPTO] digest: Add alignment handling [CRYPTO] khazad: Use 32-bit reads on key
| * | [CRYPTO] all: Pass tfm instead of ctx to algorithmsHerbert Xu2006-06-261-0/+3
| |/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Up until now algorithms have been happy to get a context pointer since they know everything that's in the tfm already (e.g., alignment, block size). However, once we have parameterised algorithms, such information will be specific to each tfm. So the algorithm API needs to be changed to pass the tfm structure instead of the context pointer. This patch is basically a text substitution. The only tricky bit is the assembly routines that need to get the context pointer offset through asm-offsets.h. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* | Merge branch 'x86-64'Linus Torvalds2006-06-2617-118/+654
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * x86-64: (83 commits) [PATCH] x86_64: x86_64 stack usage debugging [PATCH] x86_64: (resend) x86_64 stack overflow debugging [PATCH] x86_64: msi_apic.c build fix [PATCH] x86_64: i386/x86-64 Add nmi watchdog support for new Intel CPUs [PATCH] x86_64: Avoid broadcasting NMI IPIs [PATCH] x86_64: fix apic error on bootup [PATCH] x86_64: enlarge window for stack growth [PATCH] x86_64: Minor string functions optimizations [PATCH] x86_64: Move export symbols to their C functions [PATCH] x86_64: Standardize i386/x86_64 handling of NMI_VECTOR [PATCH] x86_64: Fix modular pc speaker [PATCH] x86_64: remove sys32_ni_syscall() [PATCH] x86_64: Do not use -ffunction-sections for modules [PATCH] x86_64: Add cpu_relax to apic_wait_icr_idle [PATCH] x86_64: adjust kstack_depth_to_print default [PATCH] i386/x86-64: adjust /proc/interrupts column headings [PATCH] x86_64: Fix race in cpu_local_* on preemptible kernels [PATCH] x86_64: Fix fast check in safe_smp_processor_id [PATCH] x86_64: x86_64 setup.c - printing cmp related boottime information [PATCH] i386/x86-64/ia64: Move polling flag into thread_info_status ... Manual resolve of trivial conflict in arch/i386/kernel/Makefile
| * | [PATCH] x86_64: i386/x86-64 Add nmi watchdog support for new Intel CPUsVenkatesh Pallipadi2006-06-262-1/+70
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Intel now has support for Architectural Performance Monitoring Counters ( Refer to IA-32 Intel Architecture Software Developer's Manual http://www.intel.com/design/pentium4/manuals/253669.htm ). This feature is present starting from Intel Core Duo and Intel Core Solo processors. What this means is, the performance monitoring counters and some performance monitoring events are now defined in an architectural way (using cpuid). And there will be no need to check for family/model etc for these architectural events. Below is the patch to use this performance counters in nmi watchdog driver. Patch handles both i386 and x86-64 kernels. Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
| * | [PATCH] x86_64: fix apic error on bootupSiddha, Suresh B2006-06-261-2/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Appended patch fixes the "APIC error on CPUX: 00(40)" observed during bootup. From SDM Vol-3A "Valid Interrupt Vectors" section: "When an illegal vector value (0-15) is written to an LVT entry and the delivery mode is Fixed, the APIC may signal an illegal vector error, with out regard to whether the mask bit is set or whether an interrupt is actually seen on input." Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
| * | [PATCH] x86_64: Standardize i386/x86_64 handling of NMI_VECTORKeith Owens2006-06-262-7/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | x86_64 and i386 behave inconsistently when sending an IPI on vector 2 (NMI_VECTOR). Make both behave the same, so IPI 2 is sent as NMI. The crash code was abusing send_IPI_allbutself() by passing a code instead of a vector, it only worked because crash knew about the internal code of send_IPI_allbutself(). Change crash to use NMI_VECTOR instead, and remove the comment about how crash was abusing the function. This patch is a pre-requisite for fixing the problem where sending an IPI as NMI would reboot some Dell Xeon systems. I cannot fix that problem while crash continus to abuse send_IPI_allbutself(). It also removes the inconsistency between i386 and x86_64 for NMI_VECTOR. That will simplify all the RAS code that needs to bring all the cpus to a clean stop, even when one or more cpus are spinning disabled. Signed-off-by: Keith Owens <kaos@sgi.com> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
| * | [PATCH] i386/x86-64: adjust /proc/interrupts column headingsJan Beulich2006-06-261-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | With (significantly) more than 10 CPUs online, the column headings drifted off the positions of the column contents with growing CPU numbers. 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/ia64: Move polling flag into thread_info_statusAndi Kleen2006-06-262-6/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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] i386/x86-64: fall back to old-style call trace if no unwindingJan Beulich2006-06-261-13/+33
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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 Beulich2006-06-261-11/+223
| | | | | | | | | | | | | | | | | | | | | | | | | | | 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 Beulich2006-06-264-11/+79
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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: fix vector_lock deadlock in io_apic.cIngo Molnar2006-06-261-4/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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: nmi watchdog header cleanupDon Zickus2006-06-264-6/+4
| | | | | | | | | | | | | | | | | | | | | | | | 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] i386/x86-64: simplify ioapic_register_intr()Jan Beulich2006-06-261-15/+8
| | | | | | | | | | | | | | | | | | | | | | | | 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 Beulich2006-06-261-6/+18
| | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
| * | [PATCH] x86_64: Clean and enhance up K8 northbridge access codeAndi Kleen2006-06-261-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Factor out the duplicated access/cache code into a single file * Shared between i386/x86-64. - Share flush code between AGP and IOMMU * Fix a bug: AGP didn't wait for end of flush before - Drop 8 northbridges limit and allocate dynamically - Add lock to serialize AGP and IOMMU GART flushes - Add PCI ID for next AMD northbridge - Random related cleanups The old K8 NUMA discovery code is unchanged. New systems should all use SRAT for this. Cc: "Navin Boppuri" <navin.boppuri@newisys.com> Cc: Dave Jones <davej@redhat.com> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
| * | [PATCH] x86_64: x86_64 version of the smp alternative patch.Gerd Hoffmann2006-06-261-33/+85
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Changes are largely identical to the i386 version: * alternative #define are moved to the new alternative.h file. * one new elf section with pointers to the lock prefixes which can be nop'ed out for non-smp. * two new elf sections simliar to the "classic" alternatives to replace SMP code with simpler UP code. * fixup headers to use alternative.h instead of defining their own LOCK / LOCK_PREFIX macros. The patch reuses the i386 version of the alternatives code to avoid code duplication. The code in alternatives.c was shuffled around a bit to reduce the number of #ifdefs needed. It also got some tweaks needed for x86_64 (vsyscall page handling) and new features (noreplacement option which was x86_64 only up to now). Debug printk's are changed from compile-time to runtime. Loosely based on a early version from Bastian Blank <waldi@debian.org> Signed-off-by: Gerd Hoffmann <kraxel@suse.de> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
| * | [PATCH] i386/x86-64: Emulate CPUID4 on AMDAndi Kleen2006-06-262-13/+102
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Intel systems report the cache level data from CPUID 4 in sysfs. Add a CPUID 4 emulation for AMD CPUs to report the same information for them. This allows programs to read this information in a uniform way. The AMD way to report this is less flexible so some assumptions are hardcoded (e.g. no L3) Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
| * | [PATCH] i386/x86-64: Use new official CPUID to get APICID/core split on AMD ↵Andi Kleen2006-06-261-6/+8
| |/ | | | | | | | | | | | | | | | | | | | | platforms Previously the apicid<->coreid split was computed based on the max number of cores. Now use a new CPUID AMD defined for that. On most systems right now it should be 0 and the old method will be used. Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | [PATCH] Kprobe: multi kprobe posthandler for boostermao, bibo2006-06-261-11/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If there are multi kprobes on the same probepoint, there will be one extra aggr_kprobe on the head of kprobe list. The aggr_kprobe has aggr_post_handler/aggr_break_handler whether the other kprobe post_hander/break_handler is NULL or not. This patch modifies this, only when there is one or more kprobe in the list whose post_handler is not NULL, post_handler of aggr_kprobe will be set as aggr_post_handler. [soshima@redhat.com: !CONFIG_PREEMPT fix] Signed-off-by: bibo, mao <bibo.mao@intel.com> Cc: Masami Hiramatsu <hiramatu@sdl.hitachi.co.jp> Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com> Cc: "Keshavamurthy, Anil S" <anil.s.keshavamurthy@intel.com> Cc: Prasanna S Panchamukhi <prasanna@in.ibm.com> Cc: Jim Keniston <jkenisto@us.ibm.com> Cc: Yumiko Sugita <sugita@sdl.hitachi.co.jp> Cc: Hideo Aoki <haoki@redhat.com> Signed-off-by: Satoshi Oshima <soshima@redhat.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | [PATCH] kprobe: boost 2byte-opcodes on i386Masami Hiramatsu2006-06-261-14/+65
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Previous kprobe-booster patch has not handled any 2byte opcodes and prefixes. I checked whole IA32 opcode map and classified it. This patch enables kprobe to boost those 2byte opcodes and prefixes. Signed-off-by: Masami Hiramatsu <hiramatu@sdl.hitachi.co.jp> Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com> Cc: "Keshavamurthy, Anil S" <anil.s.keshavamurthy@intel.com> Cc: Prasanna S Panchamukhi <prasanna@in.ibm.com> Cc: Jim Keniston <jkenisto@us.ibm.com> Cc: Yumiko Sugita <sugita@sdl.hitachi.co.jp> Cc: Satoshi Oshima <soshima@redhat.com> Cc: Hideo Aoki <haoki@redhat.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | [PATCH] time: fix time going backward w/ clock=pitjohn stultz2006-06-261-6/+39
| | | | | | | | | | | | | | | | | | | | Here is the PIT fix against the TOD patches that Tim pointed out. Many thanks to Tim for hunting this down. Cc: Tim Mann <mann@vmware.com> Signed-off-by: John Stultz <johnstul@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | [PATCH] generic-time: add macro to simplify/hide mask constantsJim Cromie2006-06-263-4/+4
| | | | | | | | | | | | | | | | | | | | | | Add a CLOCKSOURCE_MASK macro to simplify initializing the mask for a struct clocksource, and use it to replace literal mask constants in the various clocksource drivers. Signed-off-by: Jim Cromie <jim.cromie@gmail.com> Acked-by: John Stultz <johnstul@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | [PATCH] time: rename clocksource functionsjohn stultz2006-06-263-4/+4
| | | | | | | | | | | | | | | | | | | | | | As suggested by Roman Zippel, change clocksource functions to use clocksource_xyz rather then xyz_clocksource to avoid polluting the namespace. Signed-off-by: John Stultz <johnstul@us.ibm.com> Cc: Roman Zippel <zippel@linux-m68k.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | [PATCH] Time: i386 Clocksource Driversjohn stultz2006-06-265-3/+282
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Implement the time sources for i386 (acpi_pm, cyclone, hpet, pit, and tsc). With this patch, the conversion of the i386 arch to the generic timekeeping code should be complete. The patch should be fairly straight forward, only adding the new clocksources. [hirofumi@mail.parknet.co.jp: acpi_pm cleanup] Signed-off-by: John Stultz <johnstul@us.ibm.com> Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Paul Mundt <lethal@linux-sh.org> Signed-off-by: John Stultz <johnstul@us.ibm.com> Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | [PATCH] Time: i386 Conversion - part 4: Remove Old timer_opts Codejohn stultz2006-06-269-1716/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | Remove the old timers/timer_opts infrastructure which has been disabled. It is a fairly straightforward set of deletions Note that this does not provide any i386 clocksources, so you will only have the jiffies clocksource. To get full replacements for the code being removed here, the timeofday-clocks-i386 patch will be needed. Signed-off-by: John Stultz <johnstul@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | [PATCH] Time: i386 Conversion - part 3: Enable Generic Timekeepingjohn stultz2006-06-263-136/+21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This converts the i386 arch to use the generic timeofday subsystem. It enabled the GENERIC_TIME option, disables the timer_opts code and other arch specific timekeeping code and reworks the delay code. While this patch enables the generic timekeeping, please note that this patch does not provide any i386 clocksource. Thus only the jiffies clocksource will be available. To get full replacements for the code being disabled here, the timeofday-clocks-i386 patch will needed. Signed-off-by: John Stultz <johnstul@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | [PATCH] Time: i386 Conversion - part 2: Rework TSC Supportjohn stultz2006-06-265-183/+324
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | As part of the i386 conversion to the generic timekeeping infrastructure, this introduces a new tsc.c file. The code in this file replaces the TSC initialization, management and access code currently in timer_tsc.c (which will be removed) that we want to preserve. The code also introduces the following functionality: o tsc_khz: like cpu_khz but stores the TSC frequency on systems that do not change TSC frequency w/ CPU frequency o check/mark_tsc_unstable: accessor/modifier flag for TSC timekeeping usability o minor cleanups to calibration math. This patch also includes a one line __cpuinitdata fix from Zwane Mwaikambo. Signed-off-by: John Stultz <johnstul@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | [PATCH] Time: i386 Conversion - part 1: Move timer_pit.c to i8253.cjohn stultz2006-06-264-19/+33
|/ | | | | | | | | | | A simple cleanup for the i386 arch in preparation of moving to the generic timeofday infrastructure. It simply moves the PIT initialization code, locks, and other code we want to keep from some code from timer_pit.c (which will be removed) to i8253.c. Signed-off-by: John Stultz <johnstul@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* Revert "swsusp special saveable pages support" commitsLinus Torvalds2006-06-251-106/+0
| | | | | | | | | | | | | This reverts commits 3e3318dee0878d42ed62a19c292a2ac284135db3 [PATCH] swsusp: x86_64 mark special saveable/unsaveable pages b6370d96e09944c6e3ae8d5743ca8a8ab1f79f6c [PATCH] swsusp: i386 mark special saveable/unsaveable pages ce4ab0012b32c1a4a1d6e934aeb73bf3151c48d9 [PATCH] swsusp: add architecture special saveable pages support because not only do they apparently cause page faults on x86, the infrastructure doesn't compile on powerpc. Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] i386: Fix softirq accounting with 4K stacksBjörn Steinbrink2006-06-251-0/+8
| | | | | | | | | | Copy the softirq bits in preempt_count from the current context into the hardirq context when using 4K stacks to make the softirq_count macro work correctly and thereby fix softirq cpu time accounting. Signed-off-by: Björn Steinbrink <B.Steinbrink@gmx.de> Acked-by: Arjan van de Ven <arjan@linux.intel.com> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] i386: cpu_relax() in crash.c and doublefault.cChuck Ebbert2006-06-252-2/+4
| | | | | | | | | Add cpu_relax() to infinite loops in crash.c and doublefault.c. This is the safest change. Signed-off-by: Chuck Ebbert <76306.1226@compuserve.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] cpu_relax(): smpboot.cAndreas Mohr2006-06-251-6/+8
| | | | | | | | | | Add cpu_relax() to various smpboot.c init loops. cpu_relax() always implies a barrier (according to Arjan), so remove those as well. Signed-off-by: Andreas Mohr <andi@lisas.de> Cc: Arjan van de Ven <arjan@linux.intel.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] Clean up and refactor i386 sub-architecture setupJeremy Fitzhardinge2006-06-251-14/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | Clean up and refactor i386 sub-architecture setup. This change moves all the code from the asm-i386/mach-*/setup_arch_pre/post.h headers, into arch/i386/mach-*/setup.c. mach-*/setup_arch_pre.h is renamed to setup_arch.h, and contains only things which should be in header files. It is purely code-motion; there should be no functional changes at all. Several functions in arch/i386/kernel/setup.c needed to be made non-static so that they're visible to the code in mach-*/setup.c. asm-i386/setup.h is used to hold the prototypes for these functions. Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com> Signed-off-by: Chris Wright <chrisw@sous-sol.org> Cc: Zachary Amsden <zach@vmware.com> Cc: Chris Wright <chrisw@sous-sol.org> Cc: Christian Limpach <Christian.Limpach@cl.cam.ac.uk> Cc: Martin Bligh <mbligh@google.com> Cc: James Bottomley <James.Bottomley@steeleye.com> Cc: Andrey Panin <pazke@donpac.ru> Cc: Dave Hansen <haveblue@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] remove for_each_cpu()Andrew Morton2006-06-252-6/+6
| | | | | | | | Convert a few stragglers over to for_each_possible_cpu(), remove for_each_cpu(). Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* Add some basic resume trace facilitiesLinus Torvalds2006-06-241-0/+7
| | | | | | | | | | Considering that there isn't a lot of hw we can depend on during resume, this is about as good as it gets. This is x86-only for now, although the basic concept (and most of the code) will certainly work on almost any platform. Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* Merge branch 'release' of ↵Linus Torvalds2006-06-234-162/+393
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6 * 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6: (65 commits) ACPI: suppress power button event on S3 resume ACPI: resolve merge conflict between sem2mutex and processor_perflib.c ACPI: use for_each_possible_cpu() instead of for_each_cpu() ACPI: delete newly added debugging macros in processor_perflib.c ACPI: UP build fix for bugzilla-5737 Enable P-state software coordination via _PDC P-state software coordination for speedstep-centrino P-state software coordination for acpi-cpufreq P-state software coordination for ACPI core ACPI: create acpi_thermal_resume() ACPI: create acpi_fan_suspend()/acpi_fan_resume() ACPI: pass pm_message_t from acpi_device_suspend() to root_suspend() ACPI: create acpi_device_suspend()/acpi_device_resume() ACPI: replace spin_lock_irq with mutex for ec poll mode ACPI: Allow a WAN module enable/disable on a Thinkpad X60. sem2mutex: acpi, acpi_link_lock ACPI: delete unused acpi_bus_drivers_lock sem2mutex: drivers/acpi/processor_perflib.c ACPI add ia64 exports to build acpi_memhotplug as a module ACPI: asus_acpi_init(): propagate correct return value ... Manual resolve of conflicts in: arch/i386/kernel/cpu/cpufreq/acpi-cpufreq.c arch/i386/kernel/cpu/cpufreq/speedstep-centrino.c include/acpi/processor.h
| * Pull bugzilla-5737 into release branchLen Brown2006-06-153-155/+386
| |\ | | | | | | | | | | | | | | | Conflicts: arch/x86_64/kernel/acpi/processor.c
| | * ACPI: UP build fix for bugzilla-5737Andrew Morton2006-04-012-0/+8
| | | | | | | | | | | | | | | | | | | | | | | | cpu_online_map doesn't exist if !CONFIG_SMP. Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Len Brown <len.brown@intel.com>
| | * Enable P-state software coordination via _PDCVenkatesh Pallipadi2006-02-091-1/+1
| | | | | | | | | | | | | | | | | | | | | http://bugzilla.kernel.org/show_bug.cgi?id=5737 Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
| | * P-state software coordination for speedstep-centrinoVenkatesh Pallipadi2006-02-091-66/+180
| | | | | | | | | | | | | | | | | | | | | http://bugzilla.kernel.org/show_bug.cgi?id=5737 Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
| | * P-state software coordination for acpi-cpufreqVenkatesh Pallipadi2006-02-091-88/+197
| | | | | | | | | | | | | | | | | | | | | http://bugzilla.kernel.org/show_bug.cgi?id=5737 Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
| * | Pull novell-bugzilla-156426 into release branchLen Brown2006-06-151-2/+2
| |\ \ | | | | | | | | | | | | | | | | | | | | Conflicts: arch/i386/kernel/acpi/boot.c
OpenPOWER on IntegriCloud