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* MN10300: Don't handle misaligned loading and storing of SPDavid Howells2008-11-12
| | | | | | | | Don't handle the misaligned loading and storing of the SP register as in C code that's most certainly a compiler bug. Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* MN10300: Handle misaligned SP-based operandsDavid Howells2008-11-12
| | | | | | | | | Support misalignment handling for instructions that have kernel SP-based address operands, including fixing those that include IMM8 or IMM16 displacements. Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* MN10300: Fix misaligned index-register addressing handlingDavid Howells2008-11-12
| | | | | | | | Fix misalignment handling for an address calculated from the sum of two registers. Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* MN10300: Handle misaligned postinc-with-imm addressing mode correctlyDavid Howells2008-11-12
| | | | | | | | | Correctly handle misalignment in MOV instructions with postinc-with-immediate addressing mode operands. In these, the immediate value is the increment to be applied the address register, not the displacement to the address. Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* MN10300: Perform misalignment fixups of MOV_LccDavid Howells2008-11-12
| | | | | | | | Perform misalignment fixups of the MOV_Lcc instructions (move postinc memory to register and conditionally loop). Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* MN10300: Allow misalignment fixup in interrupt handlingDavid Howells2008-11-12
| | | | | | | Allow misalignment fixup in interrupt handling in the MN10300 arch. Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* MN10300: Fix register-postinc addressing misalignment handlingDavid Howells2008-11-12
| | | | | | | | | | | Fix misalignment handling of operands with register postincrement addressing. The flag to indicate that postincrement is required should not be interpreted as an specification of a value to be added to the address. Also add BUGs to catch unimplemented parameter markings in the opcodes table. Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* MN10300: Extract the displacement from an insn correctly in misalignment fixupDavid Howells2008-11-12
| | | | | | | | | | Extract the displacement from an MN10300 instruction correctly in the misalignment fixup handler. The code should extract the displacement in LSB order, not MSB order. Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* MN10300: Add further misalignment fixupsDavid Howells2008-11-12
| | | | | | | | Add further misalignment fixup support to the MN10300 arch, notably for ABS32 and SP+disp addressing. Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* MN10300: Add built-in testing for misalignment handlerDavid Howells2008-11-12
| | | | | | | Add configurable built-in testing for the MN10300 misalignment handler. Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* MN10300: Clean up the misalignment handler a littleDavid Howells2008-11-12
| | | | | | | | | | | | | Clean up the MN10300 misalignment handler a little by: (1) Use ilog2() rather than doing implementing log2() locally. (2) Make format_tbl[] const and static. (3) Making the debugging prints more consistent. Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Merge branch 'kvm-updates/2.6.28' of ↵Linus Torvalds2008-11-12
|\ | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/avi/kvm * 'kvm-updates/2.6.28' of git://git.kernel.org/pub/scm/linux/kernel/git/avi/kvm: KVM: Fix pit memory leak if unable to allocate irq source id KVM: ia64: fix vmm_spin_{un}lock for !CONFIG_SMP KVM: VMX: Set IGMT bit in EPT entry KVM: Require the PCI subsystem x86: KVM guest: fix section mismatch warning in kvmclock.c KVM: ia64: Use guest signal mask when blocking KVM: MMU: increase per-vcpu rmap cache alloc size
| * KVM: Fix pit memory leak if unable to allocate irq source idAvi Kivity2008-11-11
| | | | | | | | | | Reported-By: Daniel Marjamäki <danielm77@spray.se> Signed-off-by: Avi Kivity <avi@qumranet.com>
| * KVM: ia64: fix vmm_spin_{un}lock for !CONFIG_SMPXiantao Zhang2008-11-11
| | | | | | | | | | | | | | | | In the case of !CONFIG_SMP, raw_spinlock_t is empty and the spinlock functions don't build. Fix by defining spinlock functions for the uniprocessor case. Signed-off-by: Xiantao Zhang <xiantao.zhang@intel.com> Signed-off-by: Avi Kivity <avi@redhat.com>
| * KVM: VMX: Set IGMT bit in EPT entrySheng Yang2008-11-11
| | | | | | | | | | | | | | | | | | | | | | | | | | There is a potential issue that, when guest using pagetable without vmexit when EPT enabled, guest would use PAT/PCD/PWT bits to index PAT msr for it's memory, which would be inconsistent with host side and would cause host MCE due to inconsistent cache attribute. The patch set IGMT bit in EPT entry to ignore guest PAT and use WB as default memory type to protect host (notice that all memory mapped by KVM should be WB). Signed-off-by: Sheng Yang <sheng@linux.intel.com> Signed-off-by: Avi Kivity <avi@redhat.com>
| * KVM: Require the PCI subsystemAvi Kivity2008-11-11
| | | | | | | | | | | | | | PCI device assignment makes calls to pci code, so require it to be built into the kernel. Signed-off-by: Avi Kivity <avi@qumranet.com>
| * x86: KVM guest: fix section mismatch warning in kvmclock.cRakib Mullick2008-11-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | WARNING: arch/x86/kernel/built-in.o(.text+0x1722c): Section mismatch in reference from the function kvm_setup_secondary_clock() to the function .devinit.text:setup_secondary_APIC_clock() The function kvm_setup_secondary_clock() references the function __devinit setup_secondary_APIC_clock(). This is often because kvm_setup_secondary_clock lacks a __devinit annotation or the annotation of setup_secondary_APIC_clock is wrong. Signed-off-by: Md.Rakib H. Mullick <rakib.mullick@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Avi Kivity <avi@redhat.com>
| * KVM: ia64: Use guest signal mask when blockingXiantao Zhang2008-11-11
| | | | | | | | | | | | | | | | Before a vcpu blocks, it should switch to the guest signal mask to allow signals to unblock it. Signed-off-by: Xiantao Zhang <xiantao.zhang@intel.com> Signed-off-by: Avi Kivity <avi@redhat.com>
| * KVM: MMU: increase per-vcpu rmap cache alloc sizeMarcelo Tosatti2008-11-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | The page fault path can use two rmap_desc structures, if: - walk_addr's dirty pte update allocates one rmap_desc. - mmu_lock is dropped, sptes are zapped resulting in rmap_desc being freed. - fetch->mmu_set_spte allocates another rmap_desc. Increase to 4 for safety. Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by: Avi Kivity <avi@redhat.com>
* | Merge branch 'release' of ↵Linus Torvalds2008-11-12
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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: (47 commits) ACPI: pci_link: remove acpi_irq_balance_set() interface fujitsu-laptop: Add DMI callback for Lifebook S6420 ACPI: EC: Don't do transaction from GPE handler in poll mode. ACPI: EC: lower interrupt storm treshold ACPICA: Use spinlock for acpi_{en|dis}able_gpe ACPI: EC: restart failed command ACPI: EC: wait for last write gpe ACPI: EC: make kernel messages more useful when GPE storm is detected ACPI: EC: revert msleep patch thinkpad_acpi: fingers off backlight if video.ko is serving this functionality sony-laptop: fingers off backlight if video.ko is serving this functionality msi-laptop: fingers off backlight if video.ko is serving this functionality fujitsu-laptop: fingers off backlight if video.ko is serving this functionality eeepc-laptop: fingers off backlight if video.ko is serving this functionality compal: fingers off backlight if video.ko is serving this functionality asus-acpi: fingers off backlight if video.ko is serving this functionality Acer-WMI: fingers off backlight if video.ko is serving this functionality ACPI video: if no ACPI backlight support, use vendor drivers ACPI: video: Ignore devices that aren't present in hardware Delete an unwanted return statement at evgpe.c ...
| * \ Merge branch 'misc' into releaseLen Brown2008-11-11
| |\ \ | | |/ | |/|
| | * ACPI: pci_link: remove acpi_irq_balance_set() interfaceBjorn Helgaas2008-11-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This removes the acpi_irq_balance_set() interface from the PCI interrupt link driver. x86 used acpi_irq_balance_set() to tell the PCI interrupt link driver to configure links to minimize IRQ sharing. But the link driver can easily figure out whether to turn on IRQ balancing based on the IRQ model (PIC/IOAPIC/etc), so we can get rid of that external interface. It's better for the driver to figure this out at init-time. If we set it externally via the x86 code, the interface reduces modularity, and we depend on the fact that acpi_process_madt() happens before we process the kernel command line. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Len Brown <len.brown@intel.com>
* | | Merge branch 'timers-fixes-for-linus' of ↵Linus Torvalds2008-11-11
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'timers-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: timers: handle HRTIMER_CB_IRQSAFE_UNLOCKED correctly from softirq context nohz: disable tick_nohz_kick_tick() for now irq: call __irq_enter() before calling the tick_idle_check x86: HPET: enter hpet_interrupt_handler with interrupts disabled x86: HPET: read from HPET_Tn_CMP() not HPET_T0_CMP x86: HPET: convert WARN_ON to WARN_ON_ONCE
| * | | x86: HPET: enter hpet_interrupt_handler with interrupts disabledMatt Fleming2008-11-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Some functions that may be called from this handler require that interrupts are disabled. Also, combining IRQF_DISABLED and IRQF_SHARED does not reliably disable interrupts in a handler, so remove IRQF_SHARED from the irq flags (this irq is not shared anyway). Signed-off-by: Matt Fleming <mjf@gentoo.org> Cc: mingo@elte.hu Cc: venkatesh.pallipadi@intel.com Cc: "Will Newton" <will.newton@gmail.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| * | | x86: HPET: read from HPET_Tn_CMP() not HPET_T0_CMPMatt Fleming2008-11-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In hpet_next_event() we check that the value we just wrote to HPET_Tn_CMP(timer) has reached the chip. Currently, we're checking that the value we wrote to HPET_Tn_CMP(timer) is in HPET_T0_CMP, which, if timer is anything other than timer 0, is likely to fail. Signed-off-by: Matt Fleming <mjf@gentoo.org> Cc: mingo@elte.hu Cc: venkatesh.pallipadi@intel.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| * | | x86: HPET: convert WARN_ON to WARN_ON_ONCEMatt Fleming2008-11-10
| |/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | It is possible to flood the console with call traces if the WARN_ON condition is true because of the frequency with which this function is called. Signed-off-by: Matt Fleming <mjf@gentoo.org> Cc: mingo@elte.hu Cc: venkatesh.pallipadi@intel.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* | | Merge branch 'merge' of ↵Linus Torvalds2008-11-11
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc * 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc: powerpc: Update desktop/server defconfigs powerpc: Fix msr check in compat_sys_swapcontext powerpc: Repair device bindings documentation powerpc: Updated Freescale PPC related defconfigs powerpc: Update QE/CPM2 usb_ctlr structures for USB support powerpc/86xx: Correct SOC bus-frequency in GE Fanuc SBC610 DTS powerpc: Fix Book-E watchdog timer interval setting powerpc/fsl-booke: Fix synchronization bug w/local tlb invalidates
| * | | powerpc: Update desktop/server defconfigsPaul Mackerras2008-11-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Turned off CONFIG_PCI_LEGACY and turned on EXT4, and otherwise mostly took the defaults. This also updates ppc6xx_defconfig, which covers the 6xx/7xx/7xxx-based embedded boards. Signed-off-by: Paul Mackerras <paulus@samba.org>
| * | | powerpc: Fix msr check in compat_sys_swapcontextAndreas Schwab2008-11-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The new context may not be 16-byte aligned, so the real address of the mcontext structure should be read from the uc_regs pointer instead of directly using the (unaligned) uc_mcontext field. Signed-off-by: Andreas Schwab <schwab@suse.de> Signed-off-by: Paul Mackerras <paulus@samba.org>
| * | | powerpc: Updated Freescale PPC related defconfigsKumar Gala2008-11-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | unset CONFIG_PCI_LEGACY in the defconfigs as none of them enable ISDN drivers which seem to be the only place we are using pci_find_device Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
| * | | powerpc: Update QE/CPM2 usb_ctlr structures for USB supportLi Yang2008-11-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fixes following build error: CC drivers/usb/gadget/fsl_qe_udc.o drivers/usb/gadget/fsl_qe_udc.c: In function 'qe_eprx_stall_change': drivers/usb/gadget/fsl_qe_udc.c:156: error: 'struct usb_ctlr' has no member named 'usb_usep' drivers/usb/gadget/fsl_qe_udc.c:163: error: 'struct usb_ctlr' has no member named 'usb_usep' drivers/usb/gadget/fsl_qe_udc.c: In function 'qe_eptx_stall_change': drivers/usb/gadget/fsl_qe_udc.c:173: error: 'struct usb_ctlr' has no member named 'usb_usep' drivers/usb/gadget/fsl_qe_udc.c:180: error: 'struct usb_ctlr' has no member named 'usb_usep' drivers/usb/gadget/fsl_qe_udc.c: In function 'qe_eprx_nack': drivers/usb/gadget/fsl_qe_udc.c:201: error: 'struct usb_ctlr' has no member named 'usb_usep' drivers/usb/gadget/fsl_qe_udc.c:201: error: 'struct usb_ctlr' has no member named 'usb_usep' drivers/usb/gadget/fsl_qe_udc.c: In function 'qe_eprx_normal': drivers/usb/gadget/fsl_qe_udc.c:218: error: 'struct usb_ctlr' has no member named 'usb_usep' drivers/usb/gadget/fsl_qe_udc.c:218: error: 'struct usb_ctlr' has no member named 'usb_usep' drivers/usb/gadget/fsl_qe_udc.c: In function 'qe_ep_reset': drivers/usb/gadget/fsl_qe_udc.c:325: error: 'struct usb_ctlr' has no member named 'usb_usep' drivers/usb/gadget/fsl_qe_udc.c:342: error: 'struct usb_ctlr' has no member named 'usb_usep' drivers/usb/gadget/fsl_qe_udc.c: In function 'qe_ep_register_init': drivers/usb/gadget/fsl_qe_udc.c:515: error: 'struct usb_ctlr' has no member named 'usb_usep' drivers/usb/gadget/fsl_qe_udc.c: In function 'ch9getstatus': drivers/usb/gadget/fsl_qe_udc.c:1981: error: 'struct usb_ctlr' has no member named 'usb_usep' make[2]: *** [drivers/usb/gadget/fsl_qe_udc.o] Error 1 Signed-off-by: Li Yang <leoli@freescale.com> Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
| * | | powerpc/86xx: Correct SOC bus-frequency in GE Fanuc SBC610 DTSMartyn Welch2008-11-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch corrects the bus-frequency value provided in the SBC610's dts. Signed-off-by: Martyn Welch <martyn.welch@gefanuc.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
| * | | powerpc/fsl-booke: Fix synchronization bug w/local tlb invalidatesKumar Gala2008-11-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The implemetation of _tlbil_pid() on Freescale Book-E cores needs an msync & isync after we flash invalidate the TLBs. This was causing the following oops reported by Sebastian Andrzej Siewior: VFS: Mounted root (nfs filesystem) readonly. Freeing unused kernel memory: 148k init BUG: sleeping function called from invalid context at /home/bigeasy/git/linux-2.6-powerpc/mm/mmap.c:234 in_atomic():1, irqs_disabled():0 Call Trace: [df189df0] [c0007160] show_stack+0x48/0x148 (unreliable) [df189e30] [c0029480] __might_sleep+0xf0/0x100 [df189e40] [c0070ac0] remove_vma+0x28/0x98 [df189e50] [c0070c1c] exit_mmap+0xec/0x128 [df189e80] [c002d2f4] mmput+0x54/0xec [df189ea0] [c0030b6c] exit_mm+0x10c/0x120 [df189ed0] [c003288c] do_exit+0x1ac/0x6e8 [df189f20] [c0032e48] do_group_exit+0x80/0xac [df189f40] [c000e9dc] ret_from_syscall+0x0/0x3c BUG: scheduling while atomic: udevd/956/0x10000002 Modules linked in: Call Trace: [df189df0] [c0007160] show_stack+0x48/0x148 (unreliable) [df189e30] [c002ac88] __schedule_bug+0x58/0x6c [df189e40] [c023e6cc] schedule+0xa8/0x4a8 [df189e90] [c002ad6c] __cond_resched+0x38/0x64 [df189ea0] [c023ebc8] _cond_resched+0x3c/0x58 [df189eb0] [c0030e70] put_files_struct+0x90/0xec [df189ed0] [c00328a8] do_exit+0x1c8/0x6e8 [df189f20] [c0032e48] do_group_exit+0x80/0xac [df189f40] [c000e9dc] ret_from_syscall+0x0/0x3c Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* | | | Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6Linus Torvalds2008-11-11
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6: sparc64: Update defconfig. Revert "sparc: correct section of current_pc()"
| * | | | sparc64: Update defconfig.David S. Miller2008-11-10
| | | | | | | | | | | | | | | | | | | | Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | | Revert "sparc: correct section of current_pc()"David S. Miller2008-11-10
| | |/ / | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This reverts commit 8dd9453737822469837d48d5da3785ce70fb2118. This fixes a boot failure reported by Robert Reif. The code above the section change expects to fallthrough, so we can't make such a section change here.
* / | | x86: Make NUMA on 32-bit depend on BROKENRafael J. Wysocki2008-11-10
|/ / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | While investigating the failure of hibernation on 32-bit x86 with CONFIG_NUMA set, as described in this message http://marc.info/?l=linux-kernel&m=122634118116226&w=4 I asked some people for help and I was told that it wasn't really worth the effort, because CONFIG_NUMA was generally broken on 32-bit x86 systems and it shouldn't be used in such configs. For this reason, make CONFIG_NUMA depend on BROKEN instead of EXPERIMENTAL on x86-32. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Cc: Andi Kleen <andi@firstfloor.org> Cc: Pavel Machek <pavel@suse.cz> Cc: Peter Zijlstra <peterz@infradead.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | Merge branch 'sched-fixes-for-linus' of ↵Linus Torvalds2008-11-08
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: sched: optimize sched_clock() a bit sched: improve sched_clock() performance
| * | | sched: optimize sched_clock() a bitIngo Molnar2008-11-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | sched_clock() uses cycles_2_ns() needlessly - which is an irq-disabling variant of __cycles_2_ns(). Most of the time sched_clock() is called with irqs disabled already. The few places that call it with irqs enabled need to be updated. Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * | | sched: improve sched_clock() performanceIngo Molnar2008-11-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | in scheduler-intense workloads native_read_tsc() overhead accounts for 20% of the system overhead: 659567 system_call 41222.9375 686796 schedule 435.7843 718382 __switch_to 665.1685 823875 switch_mm 4526.7857 1883122 native_read_tsc 55385.9412 9761990 total 2.8468 this is large part due to the rdtsc_barrier() that is done before and after reading the TSC. But sched_clock() is not a precise clock in the GTOD sense, using such barriers is completely pointless. So remove the barriers and only use them in vget_cycles(). This improves lat_ctx performance by about 5%. Signed-off-by: Ingo Molnar <mingo@elte.hu>
* | | | Merge branch 'oprofile-for-tip' of ↵Ingo Molnar2008-11-07
|\ \ \ \ | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/rric/oprofile into x86/urgent
| * | | | oprofile: Fix p6 counter overflow checkAndi Kleen2008-11-07
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix the counter overflow check for CPUs with counter width > 32 I had a similar change in a different patch that I didn't submit and I didn't notice the problem earlier because it was always tested together. Signed-off-by: Andi Kleen <ak@linux.intel.com> Signed-off-by: Robert Richter <robert.richter@amd.com>
| * | | | Cell OProfile: Incorrect local array size in activate spu profiling functionCarl Love2008-10-31
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Updated the patch to address comments by Michael Ellerman. Specifically, changed upper limit in for loop to ARRAY_SIZE() macro and added a check to make sure the number of events specified by the user, which is used as the max for indexing various arrays, is no bigger then the declared size of the arrays. The size of the pm_signal_local array should be equal to the number of SPUs being configured in the array. Currently, the array is of size 4 (NR_PHYS_CTRS) but being indexed by a for loop from 0 to 7 (NUM_SPUS_PER_NODE). Signed-off-by: Carl Love <carll@us.ibm.com>
| * | | | Revert "Cell OProfile: Incorrect local array size in activate spu profiling ↵Robert Richter2008-10-31
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | function" This reverts commit fa448d6008cc81a3537e5db168fa0490e0caba68.
| * | | | Cell OProfile: Incorrect local array size in activate spu profiling functionCarl Love2008-10-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The size of the pm_signal_local array should be equal to the number of SPUs being configured in the call. Currently, the array is of size 4 (NR_PHYS_CTRS) but being indexed by a for loop from 0 to 7 (NUM_SPUS_PER_NODE). Signed-off-by: Carl Love <carll@us.ibm.com> Signed-off-by: Robert Richter <robert.richter@amd.com>
| * | | | Change UTF8 chars in Kconfig help text about Oprofile AMD barcelonaJesper Dangaard Brouer2008-10-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fixes screwing up text output when doing a make oldconfig and viewing help text of "OProfile AMD IBS support". When the terminal is not using an UTF8 locale / LANG. "make config" breaks terminal output and its not possible to continue. (Change added by changeset 852402cc Tue Jul 22 21:09:06 2008) Signed-off-by: Jesper Dangaard Brouer <hawk@comx.dk> Signed-off-by: Robert Richter <robert.richter@amd.com>
* | | | | Merge branch 'release' of ↵Linus Torvalds2008-11-07
|\ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6 * 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6: [IA64] Reserve elfcorehdr memory in CONFIG_CRASH_DUMP [IA64] fix boot panic caused by offline CPUs [IA64] reorder Kconfig options to match x86 [IA64] Build VT-D iommu support into generic kernel [IA64] remove dead BIO_VMERGE_BOUNDARY definition [IA64] remove duplicated #include from pci-dma.c [IA64] use common header for software IO/TLB [IA64] fix the difference between node_mem_map and node_start_pfn [IA64] Add error_recovery_info field to SAL section header [IA64] Add UV watchlist support. [IA64] Simplify SGI uv vs. sn2 driver issues
| * | | | | [IA64] Reserve elfcorehdr memory in CONFIG_CRASH_DUMPJay Lan2008-11-07
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | IA64 kdump kernel failed to initialize /proc/vmcore in 2.6.28-rc2. A bug was introduced in this patch commit: d9a9855d0b06ca6d6cc92596fedcc03f8512e062 always reserve elfcore header memory in crash kernel The problem was that the call to reserve_elfcorehdr() should be placed in CONFIG_CRASH_DUMP rather than in CONFIG_CRASH_KERNEL, which does not exist. Signed-off-by: Jay Lan <jlan@sgi.com> Acked-by: Simon Hormon <horms@verge.net.au> Signed-off-by: Tony Luck <tony.luck@intel.com>
| * | | | | [IA64] fix boot panic caused by offline CPUsDoug Chapman2008-11-06
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This fixes a regression introduced by 2c6e6db41f01b6b4eb98809350827c9678996698 "Minimize per_cpu reservations." That patch incorrectly used information about what CPUs are possible that was not yet initialized by ACPI. The end result was that per_cpu structures for offline CPUs were not initialized causing a NULL pointer reference. Since we cannot do the full acpi_boot_init() call any earlier, the simplest fix is to just parse the MADT for SAPIC entries early to find the CPU info. This should also allow for some cleanup of the code added by the "Minimize per_cpu reservations". This patch just fixes the regressions, the cleanup will come in a later patch. Signed-off-by: Doug Chapman <doug.chapman@hp.com> Signed-off-by: Alex Chiang <achiang@hp.com> CC: Robin Holt <holt@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
| * | | | | [IA64] reorder Kconfig options to match x86Bjorn Helgaas2008-11-06
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | No functional change, just reorder some config options and update the "Power management and ACPI" label to match the defacto x86 standard. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-18 00:49:40 -0500