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2012-05-22ARM: ux500: adds additional dump areasRikard Olsson
Adds additional dump area information which contains information of fuses in db8500. ST-Ericsson Linux next: - ST-Ericsson ID: 404278 ST-Ericsson FOSS-OUT ID: Trivial Change-Id: If2aea9493c0942700acc676c40dc9b6e344ef891 Signed-off-by: Rikard Olsson <rikard.p.olsson@stericsson.com> Reviewed-on: http://gerrit.lud.stericsson.com/gerrit/45155 Reviewed-by: Srinidhi KASAGAR <srinidhi.kasagar@stericsson.com>
2012-05-22u5500-mbox: API to reset mailbox stateArun Murthy
API that can be used by modem control driver to reset the mailbox state on receiving the modem reset interrupt. This APE will be called in case of modem silen reboot. ST-Ericsson Linux next: NA ST-Ericsson ID: 341807 ST-Ericsson FOSS-OUT ID: Trivial Change-Id: Idc7e4eeeaa410185d34c1be9abcb59f4dd0a60af Signed-off-by: Arun Murthy <arun.murthy@stericsson.com> Reviewed-on: http://gerrit.lud.stericsson.com/gerrit/39815 Reviewed-by: Bibek BASU <bibek.basu@stericsson.com> Reviewed-by: QABUILD Reviewed-by: Srinidhi KASAGAR <srinidhi.kasagar@stericsson.com>
2012-05-22u5500 :logical mailbox: support for 32 dsp bufferBibek Basu
add support for 32 dsp buffer ST-Ericsson Linux next: NA ST-Ericsson ID: 367390 ST-Ericsson FOSS-OUT ID: Trivial Change-Id: Id031ef5879906230b2dac8b3723bdef58da9bd4a Signed-off-by: Bibek Basu <bibek.basu@stericsson.com> Reviewed-on: http://gerrit.lud.stericsson.com/gerrit/39093 Reviewed-by: QATOOLS Reviewed-by: QABUILD Reviewed-by: Rabin VINCENT <rabin.vincent@stericsson.com>
2012-05-22modem: ux500: Coding style fixesPhilippe Langlais
Fix the most obvious violations of the kernel coding style Signed-off-by: Jonas Aaberg <jonas.aberg@stericsson.com>
2012-05-22u5500 : Logical mailbox : add support for 16 DSP buffersBibek Basu
Number of DSP read buffers has ben increased to 16 to avoid message loss when system waking up. Updated check for message pending with atomic_dec_return API which is more proper in this case. ST-Ericsson Linux next: NA ST-Ericsson ID: 367390 ST-Ericsson FOSS-OUT ID: Trivial Change-Id: I99ef44ead99a2b9eb856c01e025423a990b0ba98 Signed-off-by: Bibek Basu <bibek.basu@stericsson.com> Reviewed-on: http://gerrit.lud.stericsson.com/gerrit/36973 Reviewed-by: Srinidhi KASAGAR <srinidhi.kasagar@stericsson.com>
2012-05-22drivers: misc: Deregistering of rx- channel added.Haridhar Kalvala
Mad driver updated with de-registering of RX channel with the mailbox.Moved unmap of shared memory out of mad_close function. ST-Ericsson Linux next: - ST-Ericsson FOSS-OUT ID: Trivial Change-Id: I50351e594d746f5c2891a86351407a5bf8f934ab Signed-off-by: Haridhar Kalvala <haridhar.kalvala@stericsson.com> Reviewed-on: http://gerrit.lud.stericsson.com/gerrit/35913 Reviewed-by: Srinidhi KASAGAR <srinidhi.kasagar@stericsson.com>
2012-05-22mach-ux500: For topic branches isolation, define Modem Loaders config flags herePhilippe Langlais
Signed-off-by: Philippe Langlais <philippe.langlais@linaro.org>
2012-05-22u5500 : check for modem_itp in mloaderBibek Basu
collect the modem type info from bootargs and expose over sysfs ST-Ericsson ID: 337490 ST-Ericsson FOSS-OUT ID: Trivial ST-Ericsson Linux next: NA Change-Id: Ia705e168568a0be08409af792a04091d4e96a50a Signed-off-by: Bibek Basu <bibek.basu@stericsson.com> Reviewed-on: http://gerrit.lud.stericsson.com/gerrit/32480 Reviewed-by: Rabin VINCENT <rabin.vincent@stericsson.com>
2012-05-22ux500-mbox: Proper shutdown of mailboxArun Murthy
Implement clean shutdown of mailbox, which includes, unmapping the io mapped memory, free the requested interrupt, reset all state machine and remove from list. A function has been added to reset the mailbox which will be used in case of MSR. ST-Ericsson Linux next: NA ST-Ericsson ID: 341807 ST-Ericsson FOSS-OUT ID: Trivial Change-Id: I1435345d155717a5276a7a5d74da84d3eeef7f61 Signed-off-by: Arun Murthy <arun.murthy@stericsson.com> Reviewed-on: http://gerrit.lud.stericsson.com/gerrit/32680 Reviewed-by: Srinidhi KASAGAR <srinidhi.kasagar@stericsson.com>
2012-05-22u5500 : modem irq updateBibek Basu
irq request flag should also be IRQF_NO_SUSPEND Signed-off-by: Bibek Basu <bibek.basu@stericsson.com> Change-Id: I6db0770c7cfd62ee0feab03553a315781177def8 Reviewed-on: http://gerrit.lud.stericsson.com/gerrit/31000 Reviewed-by: Arun MURTHY <arun.murthy@stericsson.com>
2012-05-22ux500_ing05160_mailboxPD_0.1:Lockdeb correctness fix for modem_irqBibek Basu
Commit ID: Ib94dcbf6: U5500 : Lockdeb correctness fix for modem_irq Build and boot test only done for 8500 config Booting will only happend properly if used Initramfs Change-Id: I5da03baa7b8ee8f32de5712b7136442fbe2cec1c Signed-off-by: Bibek Basu <bibek.basu@stericsson.com> Reviewed-on: http://gerrit.lud.stericsson.com/gerrit/28923
2012-05-22U8500 : driver for awaking modem on sim hot swap activityBibek Basu
This driver uses GPIO to detect SIM hot swap and uses Modem Access Framework to wake up modem. ST-Ericsson Linux next: 336280 ST-Ericsson ID: 329459 ST-Ericsson FOSS-OUT ID: Trivial Change-Id: Ib4b1f67422317850f5d859ddf4c5e457f4cb616c Signed-off-by: Bibek Basu <bibek.basu@stericsson.com> Reviewed-on: http://gerrit.lud.stericsson.com/gerrit/23543 Reviewed-by: QATEST Reviewed-by: Jonas ABERG <jonas.aberg@stericsson.com>
2012-05-22u8500: shrm: Move shrm to drivers/modemKumar Sanghvi
Moves shrm specific files from arch/arm/mach-ux500/mach/include and drivers/misc to include/linux/modem/shrm and drivers/modem/shrm respectively ST-Ericsson ID: CR329459 Change-Id: I3a08f83e5302429d51eb865ee1c5e4e0ec73e31b Signed-off-by: Kumar Sanghvi <kumar.sanghvi@stericsson.com> Reviewed-on: http://gerrit.lud.stericsson.com/gerrit/23980 Reviewed-by: QATEST Reviewed-by: Srinidhi KASAGAR <srinidhi.kasagar@stericsson.com>
2012-05-22u8500: shrm: Adapt to use Modem Access frameworkKumar Sanghvi
Removes calls to prcmu driver APIs. Uses the modem access framework to get/release access to modem. ST-Ericsson ID: CR329459 Change-Id: I7933c0b41863156820a6239ff2cb74e4ed26c3d7 Signed-off-by: Kumar Sanghvi <kumar.sanghvi@stericsson.com> Reviewed-on: http://gerrit.lud.stericsson.com/gerrit/23555 Reviewed-by: QATEST Reviewed-by: Srinidhi KASAGAR <srinidhi.kasagar@stericsson.com>
2012-05-22mach-ux500: Adapt mloader to new mem layoutSesahgiri.Holi
ST-Ericsson ID: AP 340293 ST-Ericsson FOSS-OUT ID: NA Signed-off-by: Sesahgiri.Holi <seshagiri.holi@stericsson.com> Change-Id: I6e470258e5d0794649bdbfa8fe469984531f8051 Reviewed-on: http://gerrit.lud.stericsson.com/gerrit/24505 Reviewed-by: Martin PERSSON <martin.persson@stericsson.com> Reviewed-by: QATEST Reviewed-by: Preetham-rao K <preetham.rao@stericsson.com> Tested-by: Preetham-rao K <preetham.rao@stericsson.com> Reviewed-by: Srinidhi KASAGAR <srinidhi.kasagar@stericsson.com>
2012-05-22u5500 : kernel-doc for Mailbox Logical DriverPhilippe Langlais
Kernle-Doc created for u5500 Mailbox Logical Driver ST-Ericsson ID: 277198 Change-Id: I6e1298615a3943177fa05342a9ff8215e521fa72 Signed-off-by: Bibek Basu <bibek.basu@stericsson.com> Reviewed-on: http://gerrit.lud.stericsson.com/gerrit/23718 Reviewed-by: QATEST Reviewed-by: Srinidhi KASAGAR <srinidhi.kasagar@stericsson.com>
2012-05-22mach_ux500: Add support for mloader.Philippe Langlais
Add support for mloader platform driver for u4500. ST-Ericsson ID: AP 335929 ST-Ericsson FOSS-OUT ID: NA Change-Id: I0df37c29121097e078277b8989d33dfc9963a1f4 Signed-off-by: Sesahgiri.Holi <seshagiri.holi@stericsson.com> Reviewed-on: http://gerrit.lud.stericsson.com/gerrit/21012 Reviewed-by: Martin PERSSON <martin.persson@stericsson.com> Reviewed-by: Preetham-rao K <preetham.rao@stericsson.com> Tested-by: Preetham-rao K <preetham.rao@stericsson.com> Reviewed-by: Srinidhi KASAGAR <srinidhi.kasagar@stericsson.com> Conflicts: arch/arm/mach-ux500/Kconfig arch/arm/mach-ux500/Makefile arch/arm/mach-ux500/board-u5500.c
2012-05-22kernel-doc: shrm: fix kernel-doc warningsPhilippe Langlais
fix the potential kernel-doc warnings ST-Ericsson Linux next: - ST-Ericsson ID: 327425 ST-Ericsson FOSS-OUT ID: Trivial Signed-off-by: om prakash <omprakash.pal@stericsson.com> Change-Id: Ibaa302ddbaa8e223b81bd047fceaf7c3b97af491 Reviewed-on: http://gerrit.lud.stericsson.com/gerrit/23345 Reviewed-by: Rabin VINCENT <rabin.vincent@stericsson.com> Reviewed-by: Jonas ABERG <jonas.aberg@stericsson.com> Reviewed-by: QATEST Reviewed-by: Srinidhi KASAGAR <srinidhi.kasagar@stericsson.com>
2012-05-22U5500 : Mailbox logical driver.Philippe Langlais
The Mailbox is an inter-processor communication device. Message passing is possible between different CPU's. The logical driver allows multiplexing of up to 256 logical channels for each physical mailbox.This driver uses the services of Physical driver in mbox.c Mailboxes are only supported on U5500. ST-Ericsson Linux next: 336280 ST-Ericsson ID: AP 274804 ST-Ericsson FOSS-OUT ID: N/00201-FEA 212 8003 Change-Id: I23bf7e76801b69e13e216f34d88ad5371d787683 Signed-off-by: Bibek Basu <bibek.basu@stericsson.com> Reviewed-on: http://gerrit.lud.stericsson.com/gerrit/20652 Reviewed-by: Srinidhi KASAGAR <srinidhi.kasagar@stericsson.com>
2012-05-22u8500: shrm: Misc updates and optimisationKumar Sanghvi
This patch does following: 1. Protects reset of char queues to prevent a potential kernel crash if MSR is run in rapid succession continuously without allowing the user-space to settle. 2. Removes un-needed memcpy from tx/rx path in shrm net interface. 3. Eliminates use of ph_recv_buf in rx path. 3. Fixes compiler warning in net interface. 4. Updates the protection of writes to shrm fifo. ST-Ericsson ID: ER326117 Change-Id: I6aac23e20a20efc1f9b8a620db455f53e067f9bd Signed-off-by: Kumar Sanghvi <kumar.sanghvi@stericsson.com> Reviewed-on: http://gerrit.lud.stericsson.com/gerrit/19226 Reviewed-by: Hemant-vilas RAMDASI <hemant.ramdasi@stericsson.com> Reviewed-by: Srinidhi KASAGAR <srinidhi.kasagar@stericsson.com>
2012-05-22shrm: Fix compilation pb after 2.6.38 merge, change ioctl to unlocked_ioctlPhilippe Langlais
Signed-off-by: Philippe Langlais <philippe.langlais@linaro.org>
2012-05-22modem: add mloader and trace featuresPhilippe Langlais
Signed-off-by: Philippe Langlais <philippe.langlais@linaro.org>
2012-05-22drivers: shrm: Add shared memory (shrm) driverPhilippe Langlais
Signed-off-by: Robert Marklund <robert.marklund@stericsson.com>
2012-05-19Merge tag 'parisc-fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jejb/parisc-2.6 Pull PA-RISC fixes from James Bottomley: "This is a set of three bug fixes that gets parisc running again on systems with PA1.1 processors. Two fix regressions introduced in 2.6.39 and one fixes a prefetch bug that only affects PA7300LC processors. We also have another pending fix to do with the sectional arrangement of vmlinux.lds, but there's a query on it during testing on one particular system type, so I'll hold off sending it in for now." * tag 'parisc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/parisc-2.6: [PARISC] fix panic on prefetch(NULL) on PA7300LC [PARISC] fix crash in flush_icache_page_asm on PA1.1 [PARISC] fix PA1.1 oops on boot
2012-05-19Merge branch 'x86/ld-fix' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 linker bug workarounds from Peter Anvin. GNU ld-2.22.52.0.[12] (*) has an unfortunate bug where it incorrectly turns certain relocation entries absolute. Section-relative symbols that are part of otherwise empty sections are silently changed them to absolute. We rely on section-relative symbols staying section-relative, and actually have several sections in the linker script solely for this purpose. See for example http://sourceware.org/bugzilla/show_bug.cgi?id=14052 We could just black-list the buggy linker, but it appears that it got shipped in at least F17, and possibly other distros too, so it's sadly not some rare unusual case. This backports the workaround from the x86/trampoline branch, and as Peter says: "This is not a minimal fix, not at all, but it is a tested code base." * 'x86/ld-fix' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86, relocs: When printing an error, say relative or absolute x86, relocs: Workaround for binutils 2.22.52.0.1 section bug x86, realmode: 16-bit real-mode code support for relocs tool (*) That's a manly release numbering system. Stupid, sure. But manly.
2012-05-18x86, relocs: When printing an error, say relative or absoluteH. Peter Anvin
When the relocs tool throws an error, let the error message say if it is an absolute or relative symbol. This should make it a lot more clear what action the programmer needs to take and should help us find the reason if additional symbol bugs show up. Signed-off-by: H. Peter Anvin <hpa@zytor.com> Cc: <stable@vger.kernel.org>
2012-05-18x86, relocs: Workaround for binutils 2.22.52.0.1 section bugH. Peter Anvin
GNU ld 2.22.52.0.1 has a bug that it blindly changes symbols from section-relative to absolute if they are in a section of zero length. This turns the symbols __init_begin and __init_end into absolute symbols. Let the relocs program know that those should be treated as relative symbols. Reported-by: Ingo Molnar <mingo@kernel.org> Signed-off-by: H. Peter Anvin <hpa@zytor.com> Cc: H.J. Lu <hjl.tools@gmail.com> Cc: <stable@vger.kernel.org> Cc: Jarkko Sakkinen <jarkko.sakkinen@intel.com>
2012-05-18x86, realmode: 16-bit real-mode code support for relocs toolH. Peter Anvin
A new option is added to the relocs tool called '--realmode'. This option causes the generation of 16-bit segment relocations and 32-bit linear relocations for the real-mode code. When the real-mode code is moved to the low-memory during kernel initialization, these relocation entries can be used to relocate the code properly. In the assembly code 16-bit segment relocations must be relative to the 'real_mode_seg' absolute symbol. Linear relocations must be relative to a symbol prefixed with 'pa_'. 16-bit segment relocation is used to load cs:ip in 16-bit code. Linear relocations are used in the 32-bit code for relocatable data references. They are declared in the linker script of the real-mode code. The relocs tool is moved to arch/x86/tools/relocs.c, and added new target archscripts that can be used to build scripts needed building an architecture. be compiled before building the arch/x86 tree. [ hpa: accelerating this because it detects invalid absolute relocations, a serious bug in binutils 2.22.52.0.x which currently produces bad kernels. ] Signed-off-by: H. Peter Anvin <hpa@linux.intel.com> Link: http://lkml.kernel.org/r/1336501366-28617-2-git-send-email-jarkko.sakkinen@intel.com Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@intel.com> Signed-off-by: H. Peter Anvin <hpa@linux.intel.com> Cc: <stable@vger.kernel.org>
2012-05-18Merge branch 'stable' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile Pull tile tree bugfix from Chris Metcalf: "This fixes a security vulnerability (and correctness bug) in tilegx" * 'stable' of git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile: tilegx: enable SYSCALL_WRAPPERS support
2012-05-18Merge branch 'akpm' (Andrew's patch-bomb)Linus Torvalds
Merge misc fixes from Andrew Morton. * emailed from Andrew Morton <akpm@linux-foundation.org>: (4 patches) frv: delete incorrect task prototypes causing compile fail slub: missing test for partial pages flush work in flush_all() fs, proc: fix ABBA deadlock in case of execution attempt of map_files/ entries drivers/rtc/rtc-pl031.c: configure correct wday for 2000-01-01
2012-05-18tilegx: enable SYSCALL_WRAPPERS supportChris Metcalf
Some discussion with the glibc mailing lists revealed that this was necessary for 64-bit platforms with MIPS-like sign-extension rules for 32-bit values. The original symptom was that passing (uid_t)-1 to setreuid() was failing in programs linked -pthread because of the "setxid" mechanism for passing setxid-type function arguments to the syscall code. SYSCALL_WRAPPERS handles ensuring that all syscall arguments end up with proper sign-extension and is thus the appropriate fix for this problem. On other platforms (s390, powerpc, sparc64, and mips) this was fixed in 2.6.28.6. The general issue is tracked as CVE-2009-0029. Cc: <stable@vger.kernel.org> Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
2012-05-18Merge tag 'linus-mce-fix' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras Pull a machine check recovery fix from Tony Luck. I really don't like how the MCE code does some of the things it does, but this does seem to be an improvement. * tag 'linus-mce-fix' of git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras: x86/mce: Only restart instruction after machine check recovery if it is safe
2012-05-17frv: delete incorrect task prototypes causing compile failPaul Gortmaker
Commit 41101809a865 ("fork: Provide weak arch_release_[task_struct| thread_info] functions") in -tip highlights a problem in the frv arch, where it has needles prototypes for alloc_task_struct_node and free_task_struct. This now shows up as: kernel/fork.c:120:66: error: static declaration of 'alloc_task_struct_node' follows non-static declaration kernel/fork.c:127:51: error: static declaration of 'free_task_struct' follows non-static declaration since that commit turned them into real functions. Since arch/frv does does not define define __HAVE_ARCH_TASK_STRUCT_ALLOCATOR (i.e. it just uses the generic ones) it shouldn't list these at all. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Cc: David Howells <dhowells@redhat.com> Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-05-17Merge branch 'fixes' of git://git.linaro.org/people/rmk/linux-armLinus Torvalds
Pull ARM fixes from Russell King: "Small set of fixes again." * 'fixes' of git://git.linaro.org/people/rmk/linux-arm: ARM: 7419/1: vfp: fix VFP flushing regression on sigreturn path ARM: 7418/1: LPAE: fix access flag setup in mem_type_table ARM: prevent VM_GROWSDOWN mmaps extending below FIRST_USER_ADDRESS ARM: 7417/1: vfp: ensure preemption is disabled when enabling VFP access
2012-05-17Merge tag 'fixes-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM: SoC fixes from Olof Johansson: "I will stop trying to predict when we're done with fixes for a release. Here's another small batch of three patches for arm-soc: - A fix for a boot time WARN_ON() due to irq domain conversion on PRIMA2 - Fix for a regression in Tegra SMP spinup code due to swapped register offsets - Fixed config dependency for mv_cesa crypto driver to avoid build breakage" * tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: ARM: PRIMA2: fix irq domain size and IRQ mask of internal interrupt controller crypto: mv_cesa requires on CRYPTO_HASH to build ARM: tegra: Fix flow controller accesses
2012-05-17Merge branches 'perf-urgent-for-linus', 'x86-urgent-for-linus' and ↵Linus Torvalds
'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull perf, x86 and scheduler updates from Ingo Molnar. * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: tracing: Do not enable function event with enable perf stat: handle ENXIO error for perf_event_open perf: Turn off compiler warnings for flex and bison generated files perf stat: Fix case where guest/host monitoring is not supported by kernel perf build-id: Fix filename size calculation * 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86, kvm: KVM paravirt kernels don't check for CPUID being unavailable x86: Fix section annotation of acpi_map_cpu2node() x86/microcode: Ensure that module is only loaded on supported Intel CPUs * 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: sched: Fix KVM and ia64 boot crash due to sched_groups circular linked list assumption
2012-05-17ARM: 7419/1: vfp: fix VFP flushing regression on sigreturn pathWill Deacon
Commit ff9a184c ("ARM: 7400/1: vfp: clear fpscr length and stride bits on entry to sig handler") flushes the VFP state prior to entering a signal handler so that a VFP operation inside the handler will trap and force a restore of ABI-compliant registers. Reflushing and disabling VFP on the sigreturn path is predicated on the saved thread state indicating that VFP was used by the handler -- however for SMP platforms this is only set on context-switch, making the check unreliable and causing VFP register corruption in userspace since the register values are not necessarily those restored from the sigframe. This patch unconditionally flushes the VFP state after a signal handler. Since we already perform the flush before the handler and the flushing itself happens lazily, the redundant flush when VFP is not used by the handler is essentially a nop. Reported-by: Jon Medhurst <tixy@linaro.org> Signed-off-by: Jon Medhurst <tixy@linaro.org> Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-05-17ARM: 7418/1: LPAE: fix access flag setup in mem_type_tableVitaly Andrianov
A zero value for prot_sect in the memory types table implies that section mappings should never be created for the memory type in question. This is checked for in alloc_init_section(). With LPAE, we set a bit to mask access flag faults for kernel mappings. This breaks the aforementioned (!prot_sect) check in alloc_init_section(). This patch fixes this bug by first checking for a non-zero prot_sect before setting the PMD_SECT_AF flag. Signed-off-by: Vitaly Andrianov <vitalya@ti.com> Acked-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-05-16ARM: PRIMA2: fix irq domain size and IRQ mask of internal interrupt controllerBarry Song
the old codes will cause 3.4 kernel warning as irq domain size is wrong: ------------[ cut here ]------------ WARNING: at kernel/irq/irqdomain.c:74 irq_domain_legacy_revmap+0x24/0x48() Modules linked in: [<c0013f50>] (unwind_backtrace+0x0/0xf8) from [<c001e7d8>] (warn_slowpath_common+0x54/0x64) [<c001e7d8>] (warn_slowpath_common+0x54/0x64) from [<c001e804>] (warn_slowpath_null+0x1c/0x24) [<c001e804>] (warn_slowpath_null+0x1c/0x24) from [<c005c3c4>] (irq_domain_legacy_revmap+0x24/0x48) [<c005c3c4>] (irq_domain_legacy_revmap+0x24/0x48) from [<c005c704>] (irq_create_mapping+0x20/0x120) [<c005c704>] (irq_create_mapping+0x20/0x120) from [<c005c880>] (irq_create_of_mapping+0x7c/0xf0) [<c005c880>] (irq_create_of_mapping+0x7c/0xf0) from [<c01a6c48>] (irq_of_parse_and_map+0x2c/0x34) [<c01a6c48>] (irq_of_parse_and_map+0x2c/0x34) from [<c01a6c68>] (of_irq_to_resource+0x18/0x74) [<c01a6c68>] (of_irq_to_resource+0x18/0x74) from [<c01a6ce8>] (of_irq_count+0x24/0x34) [<c01a6ce8>] (of_irq_count+0x24/0x34) from [<c01a7220>] (of_device_alloc+0x58/0x158) [<c01a7220>] (of_device_alloc+0x58/0x158) from [<c01a735c>] (of_platform_device_create_pdata+0x3c/0x80) [<c01a735c>] (of_platform_device_create_pdata+0x3c/0x80) from [<c01a7468>] (of_platform_bus_create+0xc8/0x190) [<c01a7468>] (of_platform_bus_create+0xc8/0x190) from [<c01a74cc>] (of_platform_bus_create+0x12c/0x190) ---[ end trace 1b75b31a2719ed32 ]--- Signed-off-by: Barry Song <Baohua.Song@csr.com> Signed-off-by: Olof Johansson <olof@lixom.net>
2012-05-16Merge git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds
Pull kvm powerpc fixes from Marcelo Tosatti: "Urgent KVM PPC updates, quoting Alexander Graf: There are a few bugs in 3.4 that really should be fixed before people can be all happy and fuzzy about KVM on PowerPC. These fixes are: * fix POWER7 bare metal with PR=y * fix deadlock on HV=y book3s_64 mode in low memory cases * fix invalid MMU scope of PR=y mode on book3s_64, possibly eading to memory corruption" * git://git.kernel.org/pub/scm/virt/kvm/kvm: KVM: PPC: Book3S HV: Fix bug leading to deadlock in guest HPT updates powerpc/kvm: Fix VSID usage in 64-bit "PR" KVM KVM: PPC: Book3S: PR: Fix hsrr code KVM: PPC: Fix PR KVM on POWER7 bare metal KVM: PPC: Book3S: PR: Handle EMUL_ASSIST
2012-05-16Merge branch 'stable' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile Pull two Tile arch fixes from Chris Metcalf: "These are both bug-fixes, one to avoid some issues in how we invoke the "pending userspace work" flags on return to userspace, and the other to provide the same signal handler arguments for tilegx32 that we do for tilegx64." * 'stable' of git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile: arch/tile: apply commit 74fca9da0 to the compat signal handling as well arch/tile: fix up some issues in calling do_work_pending()
2012-05-16arch/tile: apply commit 74fca9da0 to the compat signal handling as wellChris Metcalf
This passes siginfo and mcontext to tilegx32 signal handlers that don't have SA_SIGINFO set just as we have been doing for tilegx64. Cc: stable@vger.kernel.org Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
2012-05-16arch/tile: fix up some issues in calling do_work_pending()Chris Metcalf
First, we were at risk of handling thread-info flags, in particular do_signal(), when returning from kernel space. This could happen after a failed kernel_execve(), or when forking a kernel thread. The fix is to test in do_work_pending() for user_mode() and return immediately if so; we already had this test for one of the flags, so I just hoisted it to the top of the function. Second, if a ptraced process updated the callee-saved registers in the ptregs struct and then processed another thread-info flag, we would overwrite the modifications with the original callee-saved registers. To fix this, we add a register to note if we've already saved the registers once, and skip doing it on additional passes through the loop. To avoid a performance hit from the couple of extra instructions involved, I modified the GET_THREAD_INFO() macro to be guaranteed to be one instruction, then bundled it with adjacent instructions, yielding an overall net savings. Reported-By: Al Viro <viro@ZenIV.linux.org.uk> Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
2012-05-16ARM: prevent VM_GROWSDOWN mmaps extending below FIRST_USER_ADDRESSRussell King
Cc: <stable@vger.kernel.org> Reported-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-05-16KVM: PPC: Book3S HV: Fix bug leading to deadlock in guest HPT updatesPaul Mackerras
When handling the H_BULK_REMOVE hypercall, we were forgetting to invalidate and unlock the hashed page table entry (HPTE) in the case where the page had been paged out. This fixes it by clearing the first doubleword of the HPTE in that case. This fixes a regression introduced in commit a92bce95f0 ("KVM: PPC: Book3S HV: Keep HPTE locked when invalidating"). The effect of the regression is that the host kernel will sometimes hang when under memory pressure. Signed-off-by: Paul Mackerras <paulus@samba.org> Signed-off-by: Alexander Graf <agraf@suse.de>
2012-05-16powerpc/kvm: Fix VSID usage in 64-bit "PR" KVMBenjamin Herrenschmidt
The code forgot to scramble the VSIDs the way we normally do and was basically using the "proto VSID" directly with the MMU. This means that in practice, KVM used random VSIDs that could collide with segments used by other user space programs. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> [agraf: simplify ppc32 case] Signed-off-by: Alexander Graf <agraf@suse.de>
2012-05-16KVM: PPC: Book3S: PR: Fix hsrr codeAlexander Graf
When jumping back into the kernel to code that knows that it would be using HSRR registers instead of SRR registers, we need to make sure we pass it all information on where to jump to in HSRR registers. Unfortunately, we used r10 to store the information to distinguish between the HSRR and SRR case. That register got clobbered in between though, rendering the later comparison invalid. Instead, let's use cr1 to store this information. That way we don't need yet another register and everyone's happy. This fixes PR KVM on POWER7 bare metal for me. Signed-off-by: Alexander Graf <agraf@suse.de>
2012-05-16KVM: PPC: Fix PR KVM on POWER7 bare metalAlexander Graf
When running on a system that is HV capable, some interrupts use HSRR SPRs instead of the normal SRR SPRs. These are also used in the Linux handlers to jump back to code after an interrupt got processed. Unfortunately, in our "jump back to the real host handler after we've done the context switch" code, we were only setting the SRR SPRs, rendering Linux to jump back to some invalid IP after it's processed the interrupt. This fixes random crashes on p7 opal mode with PR KVM for me. Signed-off-by: Alexander Graf <agraf@suse.de>
2012-05-16KVM: PPC: Book3S: PR: Handle EMUL_ASSISTAlexander Graf
In addition to normal "priviledged instruction" traps, we can also receive "emulation assist" traps on newer hardware that has the HV bit set. Handle that one the same way as a privileged instruction, including the instruction fetching. That way we don't execute old instructions that we happen to still leave in that field when an emul assist trap comes. This fixes -M mac99 / -M g3beige on p7 bare metal for me. Signed-off-by: Alexander Graf <agraf@suse.de>
2012-05-16[PARISC] fix panic on prefetch(NULL) on PA7300LCJames Bottomley
Due to an errata, the PA7300LC generates a TLB miss interruption even on the prefetch instruction. This means that prefetch(NULL), which is supposed to be a nop on linux actually generates a NULL deref fault. Fix this by testing the address of prefetch against NULL before doing the prefetch. Cc: stable@vger.kernel.org Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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