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2008-11-14[S390] ftrace: disable tracing on idle pswHeiko Carstens
Disable tracing on idle psw. Otherwise it would give us huge preempt off times for idle. Which is rather pointless. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2008-11-14[S390] lockdep: fix compile bugHeiko Carstens
arch/s390/kernel/built-in.o: In function `cleanup_io_leave_insn': mem_detect.c:(.text+0x10592): undefined reference to `lockdep_sys_exit' Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2008-11-14[S390] Fix range for add_active_range() in setup_memory()Gerald Schaefer
add_active_range() expects start_pfn + size as end_pfn value, i.e. not the pfn of the last page frame but the one behind that. We used the pfn of the last page frame so far, which can lead to a BUG_ON in move_freepages(), when the kernelcore parameter is specified (page_zone(start_page) != page_zone(end_page)). Signed-off-by: Gerald Schaefer <gerald.schaefer@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2008-11-13Merge master.kernel.org:/home/rmk/linux-2.6-armLinus Torvalds
* master.kernel.org:/home/rmk/linux-2.6-arm: [ARM] cdb89712: avoid namespace clashes with SRAM_ and BOOTROM_ constants [ARM] cdb89712,clps7500,h720x: avoid namespace clash for FLASH_* constants [ARM] integrator,realview,versatile: remove FLASH_* and EPROM_* constants [ARM] dma-mapping: fix compiler warning [ARM] iop: iop3xx needs registers mapped uncached+unbuffered [ARM] versatile: correct MMC clock rate [ARM] realview: correct MMC clock rate [ARM] 5329/1: Feroceon: fix feroceon_l2_inv_range
2008-11-13fix cpumask build breakage on pariscHelge Deller
Commit 2d3854a37e8b767a51aba38ed6d22817b0631e33 ("cpumask: introduce new API, without changing anything") introduced a build breakage on parisc. This trivial patch fixes it. Signed-off-by: Helge Deller <deller@gmx.de> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Kyle Mc Martin <kyle@hera.kernel.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-11-13[ARM] cdb89712: avoid namespace clashes with SRAM_ and BOOTROM_ constantsRussell King
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-11-13[ARM] cdb89712,clps7500,h720x: avoid namespace clash for FLASH_* constantsRussell King
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-11-13[ARM] integrator,realview,versatile: remove FLASH_* and EPROM_* constantsRussell King
FLASH_* and EPROM_* constants are unused, and clash with drivers: drivers/atm/ambassador.h:257:1: warning: "FLASH_BASE" redefined drivers/atm/ambassador.h:258:1: warning: "FLASH_SIZE" redefined drivers/atm/iphase.h:332:1: warning: "EPROM_SIZE" redefined so remove them. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-11-13[ARM] dma-mapping: fix compiler warningRussell King
arch/arm/mm/dma-mapping.c: In function `dma_sync_sg_for_cpu': arch/arm/mm/dma-mapping.c:588: warning: statement with no effect Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-11-13serial: sh-sci: Reorder the SCxTDR write after the TDxE clear.Paul Mundt
Under qemu there is a race between the TDxE read-and-clear and the SCxTDR write. While on hardware it can be gauranteed that the read-and-clear will happen prior to the character being written out, no such assumption can be made under emulation. As this path happens with IRQs off and the hardware itself doesn't care about the ordering, move the SCxTDR write until after the read-and-clear. Signed-off-by: Vladimir Prus <vladimir@codesourcery.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-11-13sh: __copy_user function can corrupt the stack in case of exceptionStuart MENEFY
The __copy_user function can corrupt the stack in the case of a non-trivial length of data, and either of the first two move instructions cause an exception. This is because the fixup for these two instructions is mapped to the no_pop case, but these instructions execute after the stack is pushed. This change creates an explicit NO_POP exception mapping macro, and uses it for the two instructions executed in the trivial case where no stack pushes occur. More information at ST Linux bugzilla: https://bugzilla.stlinux.com/show_bug.cgi?id=4824 Signed-off-by: Dylan Reid <dylan_reid@bose.com> Signed-off-by: Stuart Menefy <stuart.menefy@st.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-11-13sh: Fixed the TMU0 reload value on resumeFrancesco VIRLINZI
This patch fixes the TMU0 interrupt frequency on suspend/resume. During the resume the kernel reprograms the TMU0.ClockEvent mode but if the mode is periodic than the TMU0.TCOR is updated with a random wrong value without taking care latest valid saved value. There was no problem with No_HZ system where TMU0.TCOR isn't used. Signed-off-by: Francesco M. Virlinzi <francesco.virlinzi@st.com> Signed-off-by: Stuart Menefy <stuart.menefy@st.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-11-12sparc: Fix tty compile warnings.Robert Reif
This patch fixes tty compile warnings as sugested by Alan Cox: CC drivers/char/n_tty.o drivers/char/n_tty.c: In function ‘normal_poll’: drivers/char/n_tty.c:1555: warning: array subscript is above array bounds drivers/char/n_tty.c:1564: warning: array subscript is above array bounds drivers/char/n_tty.c: In function ‘read_chan’: drivers/char/n_tty.c:1269: warning: array subscript is above array bounds CC drivers/char/tty_ioctl.o drivers/char/tty_ioctl.c: In function ‘set_termios’: drivers/char/tty_ioctl.c:533: warning: array subscript is above array bounds drivers/char/tty_ioctl.c:537: warning: array subscript is above array bounds drivers/char/tty_ioctl.c: In function ‘tty_mode_ioctl’: drivers/char/tty_ioctl.c:662: warning: array subscript is above array bounds drivers/char/tty_ioctl.c:892: warning: array subscript is above array bounds drivers/char/tty_ioctl.c:896: warning: array subscript is above array bounds drivers/char/tty_ioctl.c:577: warning: array subscript is above array bounds drivers/char/tty_ioctl.c:928: warning: array subscript is above array bounds drivers/char/tty_ioctl.c:934: warning: array subscript is above array bounds Signed-off-by: Robert Reif <reif@earthlink.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-11-12sparc: struct device - replace bus_id with dev_name(), dev_set_name()Kay Sievers
Acked-by: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: Kay Sievers <kay.sievers@vrfy.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-11-13sh: Don't factor in PAGE_OFFSET for valid_phys_addr_range() check.Paul Mundt
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-11-13sh: early printk port type fixMagnus Damm
Add PORT_SCIF to unbreak the early printk code. Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-11-12x86: make NUMA on 32-bit depend on EXPERIMENTAL againRafael J. Wysocki
My previous patch to make CONFIG_NUMA on x86_32 depend on BROKEN turned out to be unnecessary, after all, since the source of the hibernation vs CONFIG_NUMA problem turned out to be the fact that we didn't take the NUMA KVA remapping into account in the hibernation code. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-11-12x86, hibernate: fix breakage on x86_32 with CONFIG_NUMA setRafael J. Wysocki
Impact: fix crash during hibernation on 32-bit NUMA The NUMA code on x86_32 creates special memory mapping that allows each node's pgdat to be located in this node's memory. For this purpose it allocates a memory area at the end of each node's memory and maps this area so that it is accessible with virtual addresses belonging to low memory. As a result, if there is high memory, these NUMA-allocated areas are physically located in high memory, although they are mapped to low memory addresses. Our hibernation code does not take that into account and for this reason hibernation fails on all x86_32 systems with CONFIG_NUMA=y and with high memory present. Fix this by adding a special mapping for the NUMA-allocated memory areas to the temporary page tables created during the last phase of resume. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-11-12Merge branch 'fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx * 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx: dmaengine: struct device - replace bus_id with dev_name(), dev_set_name() iop-adma: use iop_paranoia() for debug BUG_ONs iop-adma: add a dummy read to flush next descriptor update
2008-11-12MN10300: Don't do misalignment handling for userspaceDavid Howells
Don't do misalignment handling for userspace misalignment faults: just generate an appropriate SIGBUS instead. Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-11-12MN10300: Don't handle misaligned loading and storing of SPDavid Howells
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>
2008-11-12MN10300: Handle misaligned SP-based operandsDavid Howells
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>
2008-11-12MN10300: Fix misaligned index-register addressing handlingDavid Howells
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>
2008-11-12MN10300: Handle misaligned postinc-with-imm addressing mode correctlyDavid Howells
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>
2008-11-12MN10300: Perform misalignment fixups of MOV_LccDavid Howells
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>
2008-11-12MN10300: Allow misalignment fixup in interrupt handlingDavid Howells
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>
2008-11-12MN10300: Fix register-postinc addressing misalignment handlingDavid Howells
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>
2008-11-12MN10300: Extract the displacement from an insn correctly in misalignment fixupDavid Howells
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>
2008-11-12MN10300: Add further misalignment fixupsDavid Howells
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>
2008-11-12MN10300: Add built-in testing for misalignment handlerDavid Howells
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>
2008-11-12MN10300: Clean up the misalignment handler a littleDavid Howells
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>
2008-11-12Merge branch 'kvm-updates/2.6.28' of ↵Linus Torvalds
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
2008-11-12Merge branch 'release' of ↵Linus Torvalds
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 ...
2008-11-12sh: Provide a sane valid_phys_addr_range() to prevent TLB reset with PMB.Paul Mundt
With the PMB enabled, only P1SEG and up are covered by the PMB mappings, meaning that situations where out-of-bounds physical addresses are read from will lead to TLB reset after the PMB miss, allowing for use cases like dd if=/dev/mem to reset the TLB. Fix this up to make sure the reference is between __MEMORY_START (phys) and __pa(high_memory). This is coherent across all variants of sh/sh64 with and without MMU, though the PMB bug itself is only applicable to SH-4A parts. Reported-by: Hideo Saito <saito@densan.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-11-12fix sci type for SH7723Yoshihiro Shimoda
This patch changes sci type of SH7723 from PORT_SCI to PORT_SCIFA. Signed-off-by: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-11-11Merge branch 'misc' into releaseLen Brown
2008-11-11ACPI: pci_link: remove acpi_irq_balance_set() interfaceBjorn Helgaas
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>
2008-11-11iop-adma: use iop_paranoia() for debug BUG_ONsDan Williams
Now that the critical read back to flush the next descriptor address is fixed we can downgrade some BUG_ONs that need only be enabled when testing changes to the driver. Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2008-11-11KVM: Fix pit memory leak if unable to allocate irq source idAvi Kivity
Reported-By: Daniel Marjamäki <danielm77@spray.se> Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-11-11KVM: ia64: fix vmm_spin_{un}lock for !CONFIG_SMPXiantao Zhang
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>
2008-11-11KVM: VMX: Set IGMT bit in EPT entrySheng Yang
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>
2008-11-11KVM: Require the PCI subsystemAvi Kivity
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>
2008-11-11x86: KVM guest: fix section mismatch warning in kvmclock.cRakib Mullick
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>
2008-11-11Merge branch 'timers-fixes-for-linus' of ↵Linus Torvalds
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
2008-11-11KVM: ia64: Use guest signal mask when blockingXiantao Zhang
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>
2008-11-11KVM: MMU: increase per-vcpu rmap cache alloc sizeMarcelo Tosatti
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>
2008-11-11Merge branch 'merge' of ↵Linus Torvalds
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
2008-11-11Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6: sparc64: Update defconfig. Revert "sparc: correct section of current_pc()"
2008-11-11pxafb: introduce LCD_TYPE_MASK and use it.Eric Miao
Signed-off-by: Daniel Mack <daniel@caiaq.de> Signed-off-by: Eric Miao <eric.miao@marvell.com>
2008-11-11x86, voyager: fix smp generic helper voyager breakageJames Bottomley
Impact: build/boot fix for x86/Voyager This change: | commit 3d4422332711ef48ef0f132f1fcbfcbd56c7f3d1 | Author: Jens Axboe <jens.axboe@oracle.com> | Date: Thu Jun 26 11:21:34 2008 +0200 | | Add generic helpers for arch IPI function calls didn't wire up the voyager smp call function correctly, so do that here. Also make CONFIG_USE_GENERIC_SMP_HELPERS a def_bool y again, since we now use the generic helpers for every x86 architecture. Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com> Cc: Jens Axboe <Jens.Axboe@oracle.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
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