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2013-01-23KVM: ARM: Memory virtualization setupChristoffer Dall8-2/+488
This commit introduces the framework for guest memory management through the use of 2nd stage translation. Each VM has a pointer to a level-1 table (the pgd field in struct kvm_arch) which is used for the 2nd stage translations. Entries are added when handling guest faults (later patch) and the table itself can be allocated and freed through the following functions implemented in arch/arm/kvm/arm_mmu.c: - kvm_alloc_stage2_pgd(struct kvm *kvm); - kvm_free_stage2_pgd(struct kvm *kvm); Each entry in TLBs and caches are tagged with a VMID identifier in addition to ASIDs. The VMIDs are assigned consecutively to VMs in the order that VMs are executed, and caches and tlbs are invalidated when the VMID space has been used to allow for more than 255 simultaenously running guests. The 2nd stage pgd is allocated in kvm_arch_init_vm(). The table is freed in kvm_arch_destroy_vm(). Both functions are called from the main KVM code. We pre-allocate page table memory to be able to synchronize using a spinlock and be called under rcu_read_lock from the MMU notifiers. We steal the mmu_memory_cache implementation from x86 and adapt for our specific usage. We support MMU notifiers (thanks to Marc Zyngier) through kvm_unmap_hva and kvm_set_spte_hva. Finally, define kvm_phys_addr_ioremap() to map a device at a guest IPA, which is used by VGIC support to map the virtual CPU interface registers to the guest. This support is added by Marc Zyngier. Reviewed-by: Will Deacon <will.deacon@arm.com> Reviewed-by: Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Signed-off-by: Christoffer Dall <c.dall@virtualopensystems.com>
2013-01-23KVM: ARM: Hypervisor initializationChristoffer Dall9-0/+755
Sets up KVM code to handle all exceptions taken to Hyp mode. When the kernel is booted in Hyp mode, calling an hvc instruction with r0 pointing to the new vectors, the HVBAR is changed to the the vector pointers. This allows subsystems (like KVM here) to execute code in Hyp-mode with the MMU disabled. We initialize other Hyp-mode registers and enables the MMU for Hyp-mode from the id-mapped hyp initialization code. Afterwards, the HVBAR is changed to point to KVM Hyp vectors used to catch guest faults and to switch to Hyp mode to perform a world-switch into a KVM guest. Also provides memory mapping code to map required code pages, data structures, and I/O regions accessed in Hyp mode at the same virtual address as the host kernel virtual addresses, but which conforms to the architectural requirements for translations in Hyp mode. This interface is added in arch/arm/kvm/arm_mmu.c and comprises: - create_hyp_mappings(from, to); - create_hyp_io_mappings(from, to, phys_addr); - free_hyp_pmds(); Reviewed-by: Will Deacon <will.deacon@arm.com> Reviewed-by: Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Signed-off-by: Christoffer Dall <c.dall@virtualopensystems.com>
2013-01-23KVM: ARM: Initial skeleton to compile KVM supportChristoffer Dall21-4/+1445
Targets KVM support for Cortex A-15 processors. Contains all the framework components, make files, header files, some tracing functionality, and basic user space API. Only supported core is Cortex-A15 for now. Most functionality is in arch/arm/kvm/* or arch/arm/include/asm/kvm_*.h. Reviewed-by: Will Deacon <will.deacon@arm.com> Reviewed-by: Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Signed-off-by: Christoffer Dall <c.dall@virtualopensystems.com>
2013-01-23ARM: Section based HYP idmapChristoffer Dall4-12/+51
Add a method (hyp_idmap_setup) to populate a hyp pgd with an identity mapping of the code contained in the .hyp.idmap.text section. Offer a method to drop this identity mapping through hyp_idmap_teardown. Make all the above depend on CONFIG_ARM_VIRT_EXT and CONFIG_ARM_LPAE. Reviewed-by: Will Deacon <will.deacon@arm.com> Reviewed-by: Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Signed-off-by: Christoffer Dall <c.dall@virtualopensystems.com>
2013-01-23ARM: Add page table and page defines needed by KVMChristoffer Dall3-0/+47
KVM uses the stage-2 page tables and the Hyp page table format, so we define the fields and page protection flags needed by KVM. The nomenclature is this: - page_hyp: PL2 code/data mappings - page_hyp_device: PL2 device mappings (vgic access) - page_s2: Stage-2 code/data page mappings - page_s2_device: Stage-2 device mappings (vgic access) Reviewed-by: Will Deacon <will.deacon@arm.com> Reviewed-by: Marcelo Tosatti <mtosatti@redhat.com> Christoffer Dall <c.dall@virtualopensystems.com>
2013-01-23Merge branch 'for-rmk/perf' into for-rmk/virt/kvm/coreWill Deacon6-49/+75
2013-01-18ARM: perf: simplify __hw_perf_event_init err handlingMark Rutland1-5/+3
Currently __hw_perf_event_init has an err variable that's ignored right until the end, where it's initialised, conditionally set, and then used as a boolean flag deciding whether to return another error code. This patch removes the err variable and simplifies the associated error handling logic. Signed-off-by: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com>
2013-01-18ARM: perf: remove unnecessary checks for idx < 0Mark Rutland1-8/+0
We currently check for hwx->idx < 0 in armpmu_read and armpmu_del unnecessarily. The only case where hwc->idx < 0 is when armpmu_add fails, in which case the event's state is set to PERF_EVENT_STATE_INACTIVE. The perf core will not attempt to read from an event in PERF_EVENT_STATE_INACTIVE, and so the check in armpmu_read is unnecessary. Similarly, if perf core cannot add an event it will not attempt to delete it, so the WARN_ON in armpmu_del is unnecessary. This patch removes these two redundant checks. Signed-off-by: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com>
2013-01-18ARM: perf: handle armpmu_register failingMark Rutland1-5/+10
Currently perf_pmu_register may fail for several reasons (e.g. being unable to allocate memory for the struct device it associates with each PMU), and while any error is propagated by armpmu_register, it is ignored by cpu_pmu_device_probe and not propagated to the caller. This also results in a leak of a struct arm_pmu. This patch adds cleanup if armpmu_register fails, and updates the info messages to better differentiate this type of failure from a failure to probe the PMU type from the hardware or dt. Signed-off-by: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com>
2013-01-16ARM: perf: don't pretend to support counting of L1I writesWill Deacon3-12/+12
ARM has a harvard cache architecture and cannot write directly to the I-side. This patch removes the L1I write events from the cache map (which previously returned *read* events in many cases). Reported-by: Mike Williams <michael.williams@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com>
2013-01-14ARM: perf: remove redundant NULL check on cpu_pmuWill Deacon1-1/+1
cpu_pmu has already been dereferenced before we consider invoking the ->reset function, so remove the redundant NULL check. Reported-by: Cong Ding <dinggnu@gmail.com> Signed-off-by: Will Deacon <will.deacon@arm.com>
2013-01-11ARM: Use implementor and part defines from cputype.hChristoffer Dall1-18/+16
Instead of decoding implementor numbers, part numbers and Xscale architecture masks inline in the pmu probing function, use defines and accessor functions from cputype.h, which can also be shared by other subsystems, such as KVM. Signed-off-by: Christoffer Dall <c.dall@virtualopensystems.com> Signed-off-by: Will Deacon <will.deacon@arm.com>
2013-01-11ARM: Define CPU part numbers and implementorsChristoffer Dall1-0/+33
Define implementor IDs, part numbers and Xscale architecture versions in cputype.h. Also create accessor functions for reading the implementor, part number, and Xscale architecture versions from the CPUID regiser. Signed-off-by: Christoffer Dall <c.dall@virtualopensystems.com> Signed-off-by: Will Deacon <will.deacon@arm.com>
2013-01-10Linux 3.8-rc3Linus Torvalds1-1/+1
2013-01-09Merge branch 'fixes' of git://git.linaro.org/people/rmk/linux-armLinus Torvalds7-22/+40
Pull ARM fixes from Russell King. * 'fixes' of git://git.linaro.org/people/rmk/linux-arm: ARM: 7616/1: cache-l2x0: aurora: Use writel_relaxed instead of writel ARM: 7615/1: cache-l2x0: aurora: Invalidate during clean operation with WT enable ARM: 7614/1: mm: fix wrong branch from Cortex-A9 to PJ4b ARM: 7612/1: imx: Do not select some errata that depends on !ARCH_MULTIPLATFORM ARM: 7611/1: VIC: fix bug in VIC irqdomain code ARM: 7610/1: versatile: bump IRQ numbers ARM: 7609/1: disable errata work-arounds which access secure registers ARM: 7608/1: l2x0: Only set .set_debug on PL310 r3p0 and earlier
2013-01-09Merge tag 'edac_fixes_for_3.8' of ↵Linus Torvalds2-18/+9
git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp Pull EDAC fixes from Borislav Petkov: "Two error path fixes causing a crash and a Kconfig fix for an issue which spilled all EDAC suboptions into the 'Device Drivers' menu." * tag 'edac_fixes_for_3.8' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp: EDAC: Cleanup device deregistering path EDAC: Fix EDAC Kconfig menu EDAC: Fix kernel panic on module unloading
2013-01-09mm: reinstante dropped pmd_trans_splitting() checkLinus Torvalds1-0/+8
The check for a pmd being in the process of being split was dropped by mistake by commit d10e63f29488 ("mm: numa: Create basic numa page hinting infrastructure"). Put it back. Reported-by: Dave Jones <davej@redhat.com> Debugged-by: Hillf Danton <dhillf@gmail.com> Acked-by: Andrea Arcangeli <aarcange@redhat.com> Acked-by: Mel Gorman <mgorman@suse.de> Cc: Kirill Shutemov <kirill@shutemov.name> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-01-09cred: Remove tgcred pointer from struct credMarc Dionne1-1/+0
Commit 3a50597de863 ("KEYS: Make the session and process keyrings per-thread") removed the definition of the thread_group_cred structure, but left a now unused pointer in struct cred. Signed-off-by: Marc Dionne <marc.c.dionne@gmail.com> Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-01-09Merge tag 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-socLinus Torvalds53-183/+351
Pull ARM SoC fixes from Olof Johansson: "People are back from the holiday breaks, and it shows. Here are a bunch of fixes for a number of platforms: - A couple of small fixes for Nomadik - A larger set of changes for kirkwood/mvebu - uart driver selection, dt clocks, gpio-poweroff fixups, a few __init annotation fixes and some error handling improvement in their xor dma driver. - i.MX had a couple of minor fixes (and a critical one for flexcan2 clock setup) - MXS has a small board fix and a framebuffer bugfix - A set of fixes for Samsung Exynos, fixing default bootargs and some Exynos5440 clock issues - A set of OMAP changes including PM fixes and a few sparse warning fixups All in all a bit more positive code delta than we'd ideally want to see here, mostly from the OMAP PM changes, but nothing overly crazy." * tag 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (44 commits) ARM: clps711x: Fix bad merge of clockevents setup ARM: highbank: save and restore L2 cache and GIC on suspend ARM: highbank: add a power request clear ARM: highbank: fix secondary boot and hotplug ARM: highbank: fix typos with hignbank in power request functions ARM: dts: fix highbank cpu mpidr values ARM: dts: add device_type prop to cpu nodes on Calxeda platforms ARM: mx5: Fix MX53 flexcan2 clock ARM: OMAP2+: am33xx-hwmod: Fix wrongly terminated am33xx_usbss_mpu_irqs array pinctrl: mvebu: make pdma clock on dove mandatory ARM: Dove: Add pinctrl clock to DT dma: mv_xor: fix error handling for clocks dma: mv_xor: fix error handling of mv_xor_channel_add() arm: mvebu: Add missing ; for cpu node. arm: mvebu: Armada XP MV78230 has only three Ethernet interfaces arm: mvebu: Armada XP MV78230 has two cores, not one clk: mvebu: Remove inappropriate __init tagging ARM: Kirkwood: Use fixed-regulator instead of board gpio call ARM: Kirkwood: Fix missing sdio clock ARM: Kirkwood: Switch TWSI1 of 88f6282 to DT clock providers ...
2013-01-09Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linuxLinus Torvalds48-828/+447
Pull drm update from Dave Airlie: "Exynos and Radeon mostly, with a dma-buf and ttm fix thrown in. It's a bit big but its mostly exynos license fix ups and I'd rather not hold those up since its legally stuff. Radeon has a couple of fixes from dma engine work, TTM is just a locking fix, and dma-buf fix has been hanging around and I finally got a chance to review it." * 'drm-fixes' of git://people.freedesktop.org/~airlied/linux: (30 commits) drm/ttm: fix fence locking in ttm_buffer_object_transfer drm/prime: drop reference on imported dma-buf come from gem drm/radeon: add quirk for d3 delay during switcheroo poweron for apple macbooks drm/exynos: move finish page flip to a common place drm/exynos: fimd: modify condition in fimd resume drm/radeon: fix DMA CS parser for r6xx linear copy packet drm/radeon: split r6xx and r7xx copy_dma functions drm/exynos: Use devm_clk_get in exynos_drm_gsc.c drm/exynos: Remove redundant NULL check in exynos_drm_gsc.c drm/exynos: Remove explicit freeing using devm_* APIs in exynos_drm_gsc.c drm/exynos: Use devm_clk_get in exynos_drm_rotator.c drm/exynos: Remove redundant NULL check in exynos_drm_rotator.c drm/exynos: Remove unnecessary devm_* freeing APIs in exynos_drm_rotator.c drm/exynos: Use devm_clk_get in exynos_drm_fimc.c drm/exynos: Remove redundant NULL check drm/exynos: Remove explicit freeing using devm_* APIs in exynos_drm_fimc.c drm/exynos: Use devm_kzalloc in exynos_drm_ipp.c drm/exynos: fix gem buffer allocation type checking drm/exynos: remove needless parenthesis. drm/exynos: fix incorrect interrupt induced by m2m operation. ...
2013-01-08Merge tag 'omap-for-v3.8-rc2/fixes-signed-v2' of ↵Olof Johansson11-38/+132
git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes From Tony Lindgren: The biggest change is a fix to deal with different power state on omap2 registers that causes issues trying to use common PM code. Also fix few incorrect registers, and an issue for omap1 USB, and few sparse fixes for issues that sneaked in with all the clean-up. * tag 'omap-for-v3.8-rc2/fixes-signed-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: ARM: OMAP2+: am33xx-hwmod: Fix wrongly terminated am33xx_usbss_mpu_irqs array ARM: OMAP1: fix USB configuration use-after-release ARM: OMAP2/3: PRM: fix bogus OMAP2xxx powerstate return values ARM: OMAP3: clock data: Add missing enable/disable for EMU clock ARM: OMAP4: PRM: Correct wrong instance usage for reading reset sources ARM: OMAP4: PRM: fix RSTTIME and RSTST offsets ARM: OMAP4: PRM: Correct reset source map ARM: OMAP: SRAM: resolve sparse warnings ARM: OMAP AM33xx: hwmod data: resolve sparse warnings ARM: OMAP: 32k counter: resolve sparse warnings Signed-off-by: Olof Johansson <olof@lixom.net>
2013-01-08Merge branch 'v3.8-samsung-fixes-2' of ↵Olof Johansson6-4/+13
git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into fixes From Kukjin Kim: Most of them are EXYNOS5440 fixes which are for changing uart console, cpu id (typo) and silent complaining gpio error in kernel boot. * 'v3.8-samsung-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung: ARM: EXYNOS: skip the clock initialization for exynos5440 ARM: EXYNOS: enable PINCTRL for EXYNOS5440 ARM: dts: use uart port1 for console on exynos4210-smdkv310 ARM: dts: use uart port0 for console on exynos5440-ssdk5440 ARM: SAMSUNG: fix the cpu id for EXYNOS5440 ARM: EXYNOS: Revise HDMI resource size
2013-01-08Merge tag 'mxs-fixes-3.8' of git://git.linaro.org/people/shawnguo/linux-2.6 ↵Olof Johansson2-5/+6
into fixes From Shawn Guo: I have to send one critical mxsfb fix through arm-soc, as FB maintainer is unresponsive for quite a while. People start complaining the missing of such an important fix. * tag 'mxs-fixes-3.8' of git://git.linaro.org/people/shawnguo/linux-2.6: video: mxsfb: fix crash when unblanking the display ARM: dts: imx23-olinuxino: Fix IOMUX settings
2013-01-08Merge tag 'imx-fixes-3.8' of git://git.linaro.org/people/shawnguo/linux-2.6 ↵Olof Johansson6-20/+2
into fixes From Shawn Guo: It includes one critical fix - wrong flexcan2 clock will hang system when the port gets brought up. The other two are non-critical fixes, which are sent together here, since it's still early -rc stage. * tag 'imx-fixes-3.8' of git://git.linaro.org/people/shawnguo/linux-2.6: ARM: mx5: Fix MX53 flexcan2 clock ARM: dts: imx31-bug: Fix manufacturer compatible string clk: imx: Remove 'clock-output-names' from the examples
2013-01-08Merge tag 'sound-3.8' of ↵Linus Torvalds8-17/+67
git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound Pull sound fixes from Takashi Iwai: "Nothing too exciting here, just a few regression and trivial fixes, and new quirks for HD-audio and USB-audio. - HD-audio mute LED mode enum fix - Fix kernel panic of Digidesign Mbox2 usb-audio quirk (which was new in 3.8-rc1) - Creative BT-D1 usb-audio quirk - mute LED fixup for HP Pavillion 17 laptop" * tag 'sound-3.8' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: ALSA: hda - add mute LED for HP Pavilion 17 (Realtek codec) ALSA: au88x0: fix incorrect left shift sound: oss/pas2: Fix possible access out of array ALSA: usb-audio: Fix kernel panic of Digidesign Mbox2 quirk ALSA: usb-audio: Add support for Creative BT-D1 via usb sound quirks ALSA: hda - Switch "On" and "Off" for "Mute-LED Mode" kcontrol
2013-01-08Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds44-115/+353
Pull networking fixes from David Miller: 1) New sysctl ndisc_notify needs some documentation, from Hanns Frederic Sowa. 2) Netfilter REJECT target doesn't set transport header of SKB correctly, from Mukund Jampala. 3) Forcedeth driver needs to check for DMA mapping failures, from Larry Finger. 4) brcmsmac driver can't use usleep_range while holding locks, use udelay instead. From Niels Ole Salscheider. 5) Fix unregister of netlink bridge multicast database handlers, from Vlad Yasevich and Rami Rosen. 6) Fix checksum calculations in netfilter's ipv6 network prefix translation module. 7) Fix high order page allocation failures in netfilter xt_recent, from Eric Dumazet. 8) mac802154 needs to use netif_rx_ni() instead of netif_rx() because mac802154_process_data() can execute in process rather than interrupt context. From Alexander Aring. 9) Fix splice handling of MSG_SENDPAGE_NOTLAST, otherwise we elide one tcp_push() too many. From Eric Dumazet and Willy Tarreau. 10) Fix skb->truesize tracking in XEN netfront driver, from Ian Campbell. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (46 commits) xen/netfront: improve truesize tracking ipv4: fix NULL checking in devinet_ioctl() tcp: fix MSG_SENDPAGE_NOTLAST logic net/ipv4/ipconfig: really display the BOOTP/DHCP server's address. ip-sysctl: fix spelling errors mac802154: fix NOHZ local_softirq_pending 08 warning ipv6: document ndisc_notify in networking/ip-sysctl.txt ath9k: Fix Kconfig for ATH9K_HTC netfilter: xt_recent: avoid high order page allocations netfilter: fix missing dependencies for the NOTRACK target netfilter: ip6t_NPT: fix IPv6 NTP checksum calculation bridge: add empty br_mdb_init() and br_mdb_uninit() definitions. vxlan: allow live mac address change bridge: Correctly unregister MDB rtnetlink handlers brcmfmac: fix parsing rsn ie for ap mode. brcmsmac: add copyright information for Canonical rtlwifi: rtl8723ae: Fix warning for unchecked pci_map_single() call rtlwifi: rtl8192se: Fix warning for unchecked pci_map_single() call rtlwifi: rtl8192de: Fix warning for unchecked pci_map_single() call rtlwifi: rtl8192ce: Fix warning for unchecked pci_map_single() call ...
2013-01-08drm/ttm: fix fence locking in ttm_buffer_object_transferDaniel Vetter1-1/+3
Noticed while reviewing the fence locking in the radeon pageflip handler. v2: Instead of grabbing the bdev->fence_lock in object_transfer just move the single callsite of that function a few lines, so that it is protected by the fence_lock. Suggested by Jerome Glisse. v3: Fix typo in commit message. Reviewed-by: Jerome Glisse <jglisse@redhat.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-01-08Merge tag 'mvebu_fixes_for_v3.8' of ↵Olof Johansson17-47/+101
git://git.infradead.org/users/jcooper/linux into fixes From Jason Cooper: fixes for mvebu/kirkwood v3.8 - use correct uart driver for mvebu boards - add a missing DT clocks - gpio-poweroff level vs. edge triggering, use gpio_is_valid() - remove an inappropriate __init, modules need to access function. - various DT fixes - error handling in mv_xor * tag 'mvebu_fixes_for_v3.8' of git://git.infradead.org/users/jcooper/linux: pinctrl: mvebu: make pdma clock on dove mandatory ARM: Dove: Add pinctrl clock to DT dma: mv_xor: fix error handling for clocks dma: mv_xor: fix error handling of mv_xor_channel_add() arm: mvebu: Add missing ; for cpu node. arm: mvebu: Armada XP MV78230 has only three Ethernet interfaces arm: mvebu: Armada XP MV78230 has two cores, not one clk: mvebu: Remove inappropriate __init tagging ARM: Kirkwood: Use fixed-regulator instead of board gpio call ARM: Kirkwood: Fix missing sdio clock ARM: Kirkwood: Switch TWSI1 of 88f6282 to DT clock providers Power: gpio-poweroff: Fix documentation and gpio_is_valid ARM: Kirkwood: Fix missing clk for USB device. arm: mvebu: Use dw-apb-uart instead of ns16650 as UART driver Signed-off-by: Olof Johansson <olof@lixom.net>
2013-01-08ARM: clps711x: Fix bad merge of clockevents setupOlof Johansson1-1/+0
I mismerged a previous branch from Alexander, and accidentally left in ARCH_USES_GETTIMEOFFSET. Remove it. Signed-off-by: Olof Johansson <olof@lixom.net> Cc: Alexander Shiyan <shc_work@mail.ru>
2013-01-08Merge tag 'nomadik-fixes-for-arm-soc' of ↵Olof Johansson2-40/+39
git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-nomadik into fixes From Linus Walleij: Two fixes to the Nomadik: - Delete a dangling include - Bump IRQ numbers to offset at 32 * tag 'nomadik-fixes-for-arm-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-nomadik: ARM: nomadik: bump the IRQ numbers again ARM: nomadik: delete dangling include
2013-01-08ARM: highbank: save and restore L2 cache and GIC on suspendRob Herring1-1/+18
This fixes suspend to RAM adding necessary save and restore of L2 and GIC. Signed-off-by: Rob Herring <rob.herring@calxeda.com> Signed-off-by: Olof Johansson <olof@lixom.net>
2013-01-08ARM: highbank: add a power request clearRob Herring1-0/+15
When we fail to power down, we need to clear out the power request. Signed-off-by: Rob Herring <rob.herring@calxeda.com> Signed-off-by: Olof Johansson <olof@lixom.net>
2013-01-08ARM: highbank: fix secondary boot and hotplugRob Herring2-12/+2
With commit 384a290 (ARM: gic: use a private mapping for CPU target interfaces), wake-up IPIs now go to all cores as the gic cpu interface numbering may not follow core numbering. This broke secondary boot on highbank since the boot address was already set for all secondary cores, this caused all cores to boot before the kernel was ready. Fix this by moving the setting of the jump address to highbank_boot_secondary instead of highbank_smp_prepare_cpus and highbank_cpu_die. Also, clear the address when we boot. This prevents cores from booting before they are actually triggered and is also necessary to get suspend/resume to work. Signed-off-by: Rob Herring <rob.herring@calxeda.com> Cc: Nicolas Pitre <nicolas.pitre@linaro.org> Signed-off-by: Olof Johansson <olof@lixom.net>
2013-01-08ARM: highbank: fix typos with hignbank in power request functionsRob Herring4-8/+8
s/hignbank/highbank/ Signed-off-by: Rob Herring <rob.herring@calxeda.com> Signed-off-by: Olof Johansson <olof@lixom.net>
2013-01-08ARM: dts: fix highbank cpu mpidr valuesRob Herring1-8/+8
With the addition of commit a0ae0240 (ARM: kernel: add device tree init map function), the cpu reg values must match the cpu mpidr register or we'll get warnings. For some reason, the CLUSTERID on highbank is 9, so the reg value needs to be 0x90n to quiet the warnings. Signed-off-by: Rob Herring <rob.herring@calxeda.com> Signed-off-by: Olof Johansson <olof@lixom.net>
2013-01-08ARM: dts: add device_type prop to cpu nodes on Calxeda platformsRob Herring2-0/+8
While device_type is considered deprecated, it is still needed for tools like lshw to identify cpu nodes. Signed-off-by: Rob Herring <rob.herring@calxeda.com> Signed-off-by: Olof Johansson <olof@lixom.net>
2013-01-08Merge branch 'drm-fixes-3.8' of git://people.freedesktop.org/~agd5f/linux ↵Dave Airlie6-16/+135
into drm-next Alex writes: A few more fixes for DMA and a mac quirk. * 'drm-fixes-3.8' of git://people.freedesktop.org/~agd5f/linux: drm/radeon: add quirk for d3 delay during switcheroo poweron for apple macbooks drm/radeon: fix DMA CS parser for r6xx linear copy packet drm/radeon: split r6xx and r7xx copy_dma functions
2013-01-08drm/prime: drop reference on imported dma-buf come from gemSeung-Woo Kim5-0/+17
Increasing ref counts of both dma-buf and gem for imported dma-buf come from gem makes memory leak. release function of dma-buf cannot be called because f_count of dma-buf increased by importing gem and gem ref count cannot be decrease because of exported dma-buf. So I add dma_buf_put() for imported gem come from its own gem into each drivers having prime_import and prime_export capabilities. With this, only gem ref count is increased if importing gem exported from gem of same driver. Signed-off-by: Seung-Woo Kim <sw0312.kim@samsung.com> Signed-off-by: Kyungmin.park <kyungmin.park@samsung.com> Cc: Inki Dae <inki.dae@samsung.com> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: Rob Clark <rob.clark@linaro.org> Cc: Alex Deucher <alexander.deucher@amd.com> Cc: stable <stable@vger.kernel.org> Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-01-08xen/netfront: improve truesize trackingIan Campbell1-23/+4
Using RX_COPY_THRESHOLD is incorrect if the SKB is actually smaller than that. We have already accounted for this in NETFRONT_SKB_CB(skb)->pull_to so use that instead. Fixes WARN_ON from skb_try_coalesce. Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Cc: Sander Eikelenboom <linux@eikelenboom.it> Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Cc: annie li <annie.li@oracle.com> Cc: xen-devel@lists.xen.org Cc: netdev@vger.kernel.org Cc: stable@kernel.org # 3.7.x only Acked-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-01-08Merge branch 'exynos-drm-fixes' of ↵Dave Airlie37-811/+292
git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos into drm-next Summary: - change exynos file license . Most of exynos files had been copied from some randome file and not updated correctly(wrong company name used). This was our mistakes so chagnes it correctly. For this, I'm not sure that this patch should go to -fix or -next. So please give me any comment if there is any problem. - consider buffer allocation without iommu . Without iommu, dma_alloc_attrs function allocates some memory region and returns cpu address so this patch makes the cpu address to be set to buf->kvaddr correctly - cleanups to ipp relevant codes. - use common finish page flip function . to avoid the duplication of same code, use exynos_drm_crtc_finish_pageflip function commonly instead of each one. - fix fimd resume issue. . when fimd was turned off by suspend, there was one issue that the fimd wasn't turned on by resume so fix it chaing resume condition. * 'exynos-drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos: (25 commits) drm/exynos: move finish page flip to a common place drm/exynos: fimd: modify condition in fimd resume drm/exynos: Use devm_clk_get in exynos_drm_gsc.c drm/exynos: Remove redundant NULL check in exynos_drm_gsc.c drm/exynos: Remove explicit freeing using devm_* APIs in exynos_drm_gsc.c drm/exynos: Use devm_clk_get in exynos_drm_rotator.c drm/exynos: Remove redundant NULL check in exynos_drm_rotator.c drm/exynos: Remove unnecessary devm_* freeing APIs in exynos_drm_rotator.c drm/exynos: Use devm_clk_get in exynos_drm_fimc.c drm/exynos: Remove redundant NULL check drm/exynos: Remove explicit freeing using devm_* APIs in exynos_drm_fimc.c drm/exynos: Use devm_kzalloc in exynos_drm_ipp.c drm/exynos: fix gem buffer allocation type checking drm/exynos: remove needless parenthesis. drm/exynos: fix incorrect interrupt induced by m2m operation. drm/exynos: remove color bar pattern operation. drm/exynos: correct some comments to abbreviation. drm/exynos: fix build warning. drm/exynos: consider both case of vflip and hflip. drm/exynos: remove needless error handling to property. ...
2013-01-08Merge branch 'master' of git://1984.lsi.us.es/nfDavid S. Miller3-31/+28
Pablo Neira Ayuso says: ==================== The following batch contains Netfilter fixes for 3.8-rc2, they are: * Fix IPv6 stateless network/port translation (NPT) checksum calculation, from Ulrich Weber. * Fix for xt_recent to avoid memory allocation failures if large hashtables are used, from Eric Dumazet. * Fix missing dependencies in Kconfig for the deprecated NOTRACK, from myself. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2013-01-08ARM: mx5: Fix MX53 flexcan2 clockMarek Vasut1-1/+1
The second FlexCAN port uses different clock than the first one, configure correct clock to prevent hanging of the system during bringing up of the port. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Fabio Estevam <fabio.estevam@freescale.com> Acked-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-01-08Merge tag 'pm+acpi-for-3.8-rc3' of ↵Linus Torvalds22-856/+154
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull ACPI and power management fixes from Rafael Wysocki: - Removal of some ACPICA code that the kernel will never use from Lv Zheng. - APEI fix from Adrian Huang. - Removal of unnecessary ACPI memory hotplug driver code from Liu Jinsong. - Minor ACPI power management fixes. - ACPI debug code fix from Joe Perches. - ACPI fix to make system bus device nodes get the right names. - PNP resources handling fixes from Witold Szczeponik. - cpuidle fix for a recent regression stalling boot on systems with great numbers of CPUs from Daniel Lezcano. - cpuidle fixes from Sivaram Nair. - intel_idle debug message fix from Youquan Song. - cpufreq build regression fix from Larry Finger. - cpufreq fix for an obscure initialization race related to statistics from Konstantin Khlebnikov. - cpufreq change disabling the Longhaul driver by default from Rafał Bilski. - PM core fix preventing device suspend errors from happening during system suspend due to obscure race conditions. - PM QoS local variable name cleanup. * tag 'pm+acpi-for-3.8-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: PM: Move disabling/enabling runtime PM to late suspend/early resume PM / QoS: Rename local variable in dev_pm_qos_add_ancestor_request() ACPI / scan: Do not use dummy HID for system bus ACPI nodes cpufreq / governor: Fix problem with cpufreq_ondemand or cpufreq_conservative cpufreq / Longhaul: Disable driver by default cpufreq / stats: fix race between stats allocation and first usage cpuidle: fix lock contention in the idle path intel_idle: pr_debug information need separated cpuidle / coupled: fix ready counter decrement cpuidle: Fix finding state with min power_usage PNP: Handle IORESOURCE_BITS in resource allocation PNP: Simplify setting of resources ACPI / power: Remove useless message from device registering routine ACPI / glue: Update DBG macro to include KERN_DEBUG ACPI / PM: Do not apply ACPI_SUCCESS() to acpi_bus_get_device() result ACPI / memhotplug: remove redundant logic of acpi memory hotadd ACPI / APEI: Fix the returned value in erst_dbg_read ACPICA: Remove useless mini-C library.
2013-01-08Merge branch 'for-next' of git://git.samba.org/sfrench/cifs-2.6Linus Torvalds6-70/+90
Pull CIFS fixes from Steve French: "Misc small cifs fixes" * 'for-next' of git://git.samba.org/sfrench/cifs-2.6: CIFS: Don't let read only caching for mandatory byte-range locked files CIFS: Fix write after setting a read lock for read oplock files Revert "CIFS: Fix write after setting a read lock for read oplock files" cifs: adjust sequence number downward after signing NT_CANCEL request cifs: move check for NULL socket into smb_send_rqst
2013-01-08ARM: OMAP2+: am33xx-hwmod: Fix wrongly terminated am33xx_usbss_mpu_irqs arrayPantelis Antoniou1-1/+1
The IRQ array must be terminated by -1 and not by -1+OMAP_INTC_START This led to having a resource list of 100s of IRQs. Looks like this was caused by commit a2cfc509 (ARM: OMAP3+: hwmod: Add AM33XX HWMOD data) that probably had some search and replace updates done for the patch for sparse irq support. Signed-off-by: Pantelis Antoniou <panto@antoniou-consulting.com> Acked-by: Paul Walmsley <paul@pwsan.com> [tony@atomide.com: updated wit information about the breaking commit] Signed-off-by: Tony Lindgren <tony@atomide.com>
2013-01-07Merge branch 'for-linus' of ↵Linus Torvalds1-0/+1
git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs Pull namei.h missing include fix from Al Viro. The new use of ESTALE in namei.h can cause compile failures on ARM with certain configurations due to lack of errno.h. * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: namei.h: include errno.h
2013-01-07sctp: fix Kconfig bug in default cookie hmac selectionAlex Elder1-1/+1
Commit 0d0863b02002 ("sctp: Change defaults on cookie hmac selection") added a "choice" to the sctp Kconfig file. It introduced a bug which led to an infinite loop when while running "make oldconfig". The problem is that the wrong symbol was defined as the default value for the choice. Using the correct value gets rid of the infinite loop. Note: if CONFIG_SCTP_COOKIE_HMAC_SHA1=y was present in the input config file, both that and CONFIG_SCTP_COOKIE_HMAC_MD5=y be present in the generated config file. Signed-off-by: Alex Elder <elder@inktank.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-01-07Merge tag 'ext4_for_linus' of ↵Linus Torvalds2-2/+3
git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4 Pull ext4 regression fixes from Ted Ts'o: "Bug fixes, including two regressions introduced in v3.8. The most serious of these regressions is a buffer cache leak." * tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: ext4: remove duplicate call to ext4_bread() in ext4_init_new_dir() ext4: release buffer in failed path in dx_probe() ext4: fix configuration dependencies for ext4 ACLs and security labels
2013-01-07EDAC: Cleanup device deregistering pathLans Zhang1-12/+6
Use device_unregister to replace put_device + device_del for cleanup, and fix the potential use after free. Signed-off-by: Lans Zhang <jia.zhang@windriver.com> Signed-off-by: Borislav Petkov <bp@alien8.de>
2013-01-07EDAC: Fix EDAC Kconfig menuBorislav Petkov1-5/+3
After f65aad41772f("MIPS: Cavium: Add EDAC support."), when entering the "Device Drivers" toplevel menu in menuconfig, the suboptions behind EDAC appeared merged with the rest of the device drivers types. This was because the menuconfig option EDAC is querying an EDAC_SUPPORT Kconfig bool which was defined after the menu definition. When pushing EDAC_SUPPORT up, before the menu definition, the variable is defined earlier and the above menuconfig artifact doesn't happen. Drop a useless menuconfig comment while at it. Cc: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: Borislav Petkov <bp@alien8.de>