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* irqchip/gicv3-its: ITS table size should not be smaller than PSZMinghuan Lian2015-05-201-1/+8
| | | | | | | | | | | | | | | When allocating a device table, if the requested allocation is smaller than the default granule size of the ITS then, we need to round up to the default size. Signed-off-by: Minghuan Lian <Minghuan.Lian@freescale.com> [ stuart: Added comments and massaged changelog ] Signed-off-by: Stuart Yoder <stuart.yoder@freescale.com> Reviewed-by: Marc Zygnier <marc.zyngier@arm.com> Cc: <linux-arm-kernel@lists.infradead.org> Cc: <jason@lakedaemon.net> Link: http://lkml.kernel.org/r/1432134795-661-1-git-send-email-stuart.yoder@freescale.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* irqchip: tegra: Set the proper base address in irq chip dataLucas Stach2015-05-131-1/+1
| | | | | | | | | | | | | | | | | | | The irq chip functions use the irq chipdata directly as the base register address of the controller, so this should be passed in instead of a pointer to the array address holding the base address. This fixes Tegra20 CPUidle as now the un-/masking of IRQs at the LIC level works again, but more importantly it fixes the resulting memory corruption. Fixes: de3ce0804916 ' irqchip: tegra: Add DT-based support for legacy interrupt controller' Signed-off-by: Lucas Stach <dev@lynxeye.de> Cc: Stephen Warren <swarren@wwwdotorg.org> Cc: Thierry Reding <thierry.reding@gmail.com> Cc: Alexandre Courbot <gnurou@gmail.com> Cc: Jason Cooper <jason@lakedaemon.net> Cc: Marc Zyngier <marc.zyngier@arm.com> Link: http://lkml.kernel.org/r/1431202014-3136-1-git-send-email-dev@lynxeye.de Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* Merge branch 'irq-urgent-for-linus' of ↵Linus Torvalds2015-05-091-70/+1
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull irq updates from Thomas Gleixner: "Two patches from the irq departement: - a simple fix to make dummy_irq_chip usable for wakeup scenarios - removal of the gic arch_extn hackery. Now that all users are converted we really want to get rid of the interface so people wont come up with new use cases" * 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: irqchip: gic: Drop support for gic_arch_extn genirq: Set IRQCHIP_SKIP_SET_WAKE flag for dummy_irq_chip
| * irqchip: gic: Drop support for gic_arch_extnMarc Zyngier2015-04-241-70/+1
| | | | | | | | | | | | | | | | | | | | | | Now that the users of gic_arch_extn have been fixed, drop the "feature" for good. This leads to the removal of some now useless locking. Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Cc: linux-arm-kernel@lists.infradead.org Cc: Jason Cooper <jason@lakedaemon.net> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* | Merge tag 'arm64-upstream' of ↵Linus Torvalds2015-04-242-0/+107
|\ \ | |/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux Pull initial ACPI support for arm64 from Will Deacon: "This series introduces preliminary ACPI 5.1 support to the arm64 kernel using the "hardware reduced" profile. We don't support any peripherals yet, so it's fairly limited in scope: - MEMORY init (UEFI) - ACPI discovery (RSDP via UEFI) - CPU init (FADT) - GIC init (MADT) - SMP boot (MADT + PSCI) - ACPI Kconfig options (dependent on EXPERT) ACPI for arm64 has been in development for a while now and hardware has been available that can boot with either FDT or ACPI tables. This has been made possible by both changes to the ACPI spec to cater for ARM-based machines (known as "hardware-reduced" in ACPI parlance) but also a Linaro-driven effort to get this supported on top of the Linux kernel. This pull request is the result of that work. These changes allow us to initialise the CPUs, interrupt controller, and timers via ACPI tables, with memory information and cmdline coming from EFI. We don't support a hybrid ACPI/FDT scheme. Of course, there is still plenty of work to do (a serial console would be nice!) but I expect that to happen on a per-driver basis after this core series has been merged. Anyway, the diff stat here is fairly horrible, but splitting this up and merging it via all the different subsystems would have been extremely painful. Instead, we've got all the relevant Acks in place and I've not seen anything other than trivial (Kconfig) conflicts in -next (for completeness, I've included my resolution below). Nearly half of the insertions fall under Documentation/. So, we'll see how this goes. Right now, it all depends on EXPERT and I fully expect people to use FDT by default for the immediate future" * tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (31 commits) ARM64 / ACPI: make acpi_map_gic_cpu_interface() as void function ARM64 / ACPI: Ignore the return error value of acpi_map_gic_cpu_interface() ARM64 / ACPI: fix usage of acpi_map_gic_cpu_interface ARM64: kernel: acpi: honour acpi=force command line parameter ARM64: kernel: acpi: refactor ACPI tables init and checks ARM64: kernel: psci: let ACPI probe PSCI version ARM64: kernel: psci: factor out probe function ACPI: move arm64 GSI IRQ model to generic GSI IRQ layer ARM64 / ACPI: Don't unflatten device tree if acpi=force is passed ARM64 / ACPI: additions of ACPI documentation for arm64 Documentation: ACPI for ARM64 ARM64 / ACPI: Enable ARM64 in Kconfig XEN / ACPI: Make XEN ACPI depend on X86 ARM64 / ACPI: Select ACPI_REDUCED_HARDWARE_ONLY if ACPI is enabled on ARM64 clocksource / arch_timer: Parse GTDT to initialize arch timer irqchip: Add GICv2 specific ACPI boot support ARM64 / ACPI: Introduce ACPI_IRQ_MODEL_GIC and register device's gsi ACPI / processor: Make it possible to get CPU hardware ID via GICC ACPI / processor: Introduce phys_cpuid_t for CPU hardware ID ARM64 / ACPI: Parse MADT for SMP initialization ...
| * ACPI: move arm64 GSI IRQ model to generic GSI IRQ layerLorenzo Pieralisi2015-03-261-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The code deployed to implement GSI linux IRQ numbers mapping on arm64 turns out to be generic enough so that it can be moved to ACPI core code along with its respective config option ACPI_GENERIC_GSI selectable on architectures that can reuse the same code. Current ACPI IRQ mapping code is not integrated in the kernel IRQ domain infrastructure, in particular there is no way to look-up the IRQ domain associated with a particular interrupt controller, so this first version of GSI generic code carries out the GSI<->IRQ mapping relying on the IRQ default domain which is supposed to be always set on a specific architecture in case the domain structure passed to irq_create/find_mapping() functions is missing. This patch moves the arm64 acpi functions that implement the gsi mappings: acpi_gsi_to_irq() acpi_register_gsi() acpi_unregister_gsi() to ACPI core code. Since the generic GSI<->domain mapping is based on IRQ domains, it can be extended as soon as a way to map an interrupt controller to an IRQ domain is implemented for ACPI in the IRQ domain layer. x86 and ia64 code for GSI mappings cannot rely on the generic GSI layer at present for legacy reasons, so they do not select the ACPI_GENERIC_GSI config options and keep relying on their arch specific GSI mapping layer. Cc: Jiang Liu <jiang.liu@linux.intel.com> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Rafael J. Wysocki <rjw@rjwysocki.net> Acked-by: Hanjun Guo <hanjun.guo@linaro.org> Acked-by: Will Deacon <will.deacon@arm.com> Acked-by: Marc Zyngier <marc.zyngier@arm.com> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com>
| * irqchip: Add GICv2 specific ACPI boot supportTomasz Nowicki2015-03-262-0/+105
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ACPI kernel uses MADT table for proper GIC initialization. It needs to parse GIC related subtables, collect CPU interface and distributor addresses and call driver initialization function (which is hardware abstraction agnostic). In a similar way, FDT initialize GICv1/2. NOTE: This commit allow to initialize GICv1/2 basic functionality. While now simple GICv2 init call is used, any further GIC features require generic infrastructure for proper ACPI irqchip initialization. That mechanism and stacked irqdomains to support GICv2 MSI/virtualization extension, GICv3/4 and its ITS are considered as next steps. CC: Jason Cooper <jason@lakedaemon.net> CC: Marc Zyngier <marc.zyngier@arm.com> CC: Thomas Gleixner <tglx@linutronix.de> Tested-by: Suravee Suthikulpanit <Suravee.Suthikulpanit@amd.com> Tested-by: Yijing Wang <wangyijing@huawei.com> Tested-by: Mark Langsdorf <mlangsdo@redhat.com> Tested-by: Jon Masters <jcm@redhat.com> Tested-by: Timur Tabi <timur@codeaurora.org> Tested-by: Robert Richter <rrichter@cavium.com> Acked-by: Robert Richter <rrichter@cavium.com> Acked-by: Marc Zyngier <marc.zyngier@arm.com> Acked-by: Jason Cooper <jason@lakedaemon.net> Reviewed-by: Grant Likely <grant.likely@linaro.org> Signed-off-by: Tomasz Nowicki <tomasz.nowicki@linaro.org> Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org> Signed-off-by: Will Deacon <will.deacon@arm.com>
* | Merge tag 'cpumask-next-for-linus' of ↵Linus Torvalds2015-04-202-4/+4
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux Pull final removal of deprecated cpus_* cpumask functions from Rusty Russell: "This is the final removal (after several years!) of the obsolete cpus_* functions, prompted by their mis-use in staging. With these function removed, all cpu functions should only iterate to nr_cpu_ids, so we finally only allocate that many bits when cpumasks are allocated offstack" * tag 'cpumask-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux: (25 commits) cpumask: remove __first_cpu / __next_cpu cpumask: resurrect CPU_MASK_CPU0 linux/cpumask.h: add typechecking to cpumask_test_cpu cpumask: only allocate nr_cpumask_bits. Fix weird uses of num_online_cpus(). cpumask: remove deprecated functions. mips: fix obsolete cpumask_of_cpu usage. x86: fix more deprecated cpu function usage. ia64: remove deprecated cpus_ usage. powerpc: fix deprecated CPU_MASK_CPU0 usage. CPU_MASK_ALL/CPU_MASK_NONE: remove from deprecated region. staging/lustre/o2iblnd: Don't use cpus_weight staging/lustre/libcfs: replace deprecated cpus_ calls with cpumask_ staging/lustre/ptlrpc: Do not use deprecated cpus_* functions blackfin: fix up obsolete cpu function usage. parisc: fix up obsolete cpu function usage. tile: fix up obsolete cpu function usage. arm64: fix up obsolete cpu function usage. mips: fix up obsolete cpu function usage. x86: fix up obsolete cpu function usage. ...
| * | drivers: fix up obsolete cpu function usage.Rusty Russell2015-03-052-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Thanks to spatch, plus manual removal of "&*". Then a sweep for for_each_cpu_mask => for_each_cpu. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Herbert Xu <herbert@gondor.apana.org.au> Cc: Jason Cooper <jason@lakedaemon.net> Cc: Chris Metcalf <cmetcalf@ezchip.com> Cc: netdev@vger.kernel.org
* | | Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linusLinus Torvalds2015-04-176-68/+515
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull MIPS updates from Ralf Baechle: "This is the main pull request for MIPS for Linux 4.1. Most noteworthy: - Add more Octeon-optimized crypto functions - Octeon crypto preemption and locking fixes - Little endian support for Octeon - Use correct CSR to soft reset Octeons - Support LEDs on the Octeon-based DSR-1000N - Fix PCI interrupt mapping for the Octeon-based DSR-1000N - Mark prom_free_prom_memory() as __init for a number of systems - Support for Imagination's Pistachio SOC. This includes arch and CLK bits. I'd like to merge pinctrl bits later - Improve parallelism of csum_partial for certain pipelines - Organize DTB files in subdirs like other architectures - Implement read_sched_clock for all MIPS platforms other than Octeon - Massive series of 38 fixes and cleanups for the FPU emulator / kernel - Further FPU remulator work to support new features. This sits on a separate branch which also has been pulled into the 4.1 KVM branch - Clean up and fixes for the SEAD3 eval board; remove unused file - Various updates for Netlogic platforms - A number of small updates for Loongson 3 platforms - Increase the memory limit for ATH79 platforms to 256MB - A fair number of fixes and updates for BCM47xx platforms - Finish the implementation of XPA support - MIPS FDC support. No, not floppy controller but Fast Debug Channel :) - Detect the R16000 used in SGI legacy platforms - Fix Kconfig dependencies for the SSB bus support" * 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (265 commits) MIPS: Makefile: Fix MIPS ASE detection code MIPS: asm: elf: Set O32 default FPU flags MIPS: BCM47XX: Fix detecting Microsoft MN-700 & Asus WL500G MIPS: Kconfig: Disable SMP/CPS for 64-bit MIPS: Hibernate: flush TLB entries earlier MIPS: smp-cps: cpu_set FPU mask if FPU present MIPS: lose_fpu(): Disable FPU when MSA enabled MIPS: ralink: add missing symbol for RALINK_ILL_ACC MIPS: ralink: Fix bad config symbol in PCI makefile. SSB: fix Kconfig dependencies MIPS: Malta: Detect and fix bad memsize values Revert "MIPS: Avoid pipeline stalls on some MIPS32R2 cores." MIPS: Octeon: Delete override of cpu_has_mips_r2_exec_hazard. MIPS: Fix cpu_has_mips_r2_exec_hazard. MIPS: kernel: entry.S: Set correct ISA level for mips_ihb MIPS: asm: spinlock: Fix addiu instruction for R10000_LLSC_WAR case MIPS: r4kcache: Use correct base register for MIPS R6 cache flushes MIPS: Kconfig: Fix typo for the r2-to-r6 emulator kernel parameter MIPS: unaligned: Fix regular load/store instruction emulation for EVA MIPS: unaligned: Surround load/store macros in do {} while statements ...
| * | | IRQCHIP: Add new driver for BCM7038-style level 1 interrupt controllersKevin Cernekee2015-04-013-0/+341
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is the main peripheral IRQ controller on the BCM7xxx MIPS chips; it has the following characteristics: - 64 to 160+ level IRQs - Atomic set/clear registers - Reasonably predictable register layout (N status words, then N mask status words, then N mask set words, then N mask clear words) - SMP affinity supported on most systems - Typically connected to MIPS IRQ 2,3,2,3 on CPUs 0,1,2,3 This driver registers one IRQ domain and one IRQ chip to cover all instances of the block. Up to 4 instances of the block may appear, as it supports 4-way IRQ affinity on BCM7435. The same block exists on the ARM BCM7xxx chips, but typically the ARM GIC is used instead. So this driver is primarily intended for MIPS STB chips. Signed-off-by: Kevin Cernekee <cernekee@gmail.com> Cc: f.fainelli@gmail.com Cc: jaedon.shin@gmail.com Cc: abrestic@chromium.org Cc: tglx@linutronix.de Cc: jason@lakedaemon.net Cc: jogo@openwrt.org Cc: arnd@arndb.de Cc: computersforpeace@gmail.com Cc: linux-mips@linux-mips.org Cc: devicetree@vger.kernel.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/8844/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * | | IRQCHIP: bcm7120-l2: Add support for BCM3380-style controllersKevin Cernekee2015-04-011-4/+51
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | These controllers support multiple enable/status pairs (64+ IRQs), can put the enable/status words at different offsets, and do not support multiple parent IRQs. Signed-off-by: Kevin Cernekee <cernekee@gmail.com> Cc: f.fainelli@gmail.com Cc: jaedon.shin@gmail.com Cc: abrestic@chromium.org Cc: tglx@linutronix.de Cc: jason@lakedaemon.net Cc: jogo@openwrt.org Cc: arnd@arndb.de Cc: computersforpeace@gmail.com Cc: linux-mips@linux-mips.org Cc: devicetree@vger.kernel.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/8843/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * | | IRQCHIP: bcm7120-l2: Split STB-specific logic into its own functionKevin Cernekee2015-04-011-55/+68
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The BCM7xxx instances of this block (listed in the register manual as simply "IRQ0") all have the following items in common: - brcm,int-map-mask: for routing different bits in the L2 to different parent IRQs - brcm,int-fwd-mask: for hardwiring certain IRQs to bypass the L2 and use dedicated L1 lines - one enable/status pair (32 bits only) Much of the driver code can be shared with BCM3380-style controllers, but in order to do this cleanly, let's split out the BCM7xxx-specific logic first. Signed-off-by: Kevin Cernekee <cernekee@gmail.com> Cc: f.fainelli@gmail.com Cc: jaedon.shin@gmail.com Cc: abrestic@chromium.org Cc: tglx@linutronix.de Cc: jason@lakedaemon.net Cc: jogo@openwrt.org Cc: arnd@arndb.de Cc: computersforpeace@gmail.com Cc: linux-mips@linux-mips.org Cc: devicetree@vger.kernel.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/8842/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * | | IRQCHIP: bcm7120-l2: Refactor driver for arbitrary IRQEN/IRQSTAT offsetsKevin Cernekee2015-04-011-13/+28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently the driver assumes that REG_BASE+0x00 is the IRQ enable mask, and REG_BASE+0x04 is the IRQ status mask. This is true on BCM3384 and BCM7xxx, but it is not true for some of the controllers found on BCM63xx chips. So we will change a couple of key assumptions: - Don't assume that both the IRQEN and IRQSTAT registers will be covered by a single ioremap() operation. - Don't assume any particular ordering (IRQSTAT might show up before IRQEN on some chips). - For an L2 controller with >=64 IRQs, don't assume that every IRQEN/IRQSTAT pair will use the same register spacing. This patch changes the "plumbing" but doesn't yet provide a way for users to instantiate a controller with arbitrary IRQEN/IRQSTAT offsets. Signed-off-by: Kevin Cernekee <cernekee@gmail.com> Cc: f.fainelli@gmail.com Cc: jaedon.shin@gmail.com Cc: abrestic@chromium.org Cc: tglx@linutronix.de Cc: jason@lakedaemon.net Cc: jogo@openwrt.org Cc: computersforpeace@gmail.com Cc: linux-mips@linux-mips.org Cc: devicetree@vger.kernel.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/8841/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * | | IRQCHIP: brcmstb-l2: don't clear wakeable interrupts at init timeBrian Norris2015-04-011-3/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Wakeable interrupts might be pending at boot/init time, because wakeup interrupts might have triggered a resume from S5. So don't clear such wakeups. This means that any driver which requests a wakeable interrupt bit should be prepared to handle an interrupt as soon as they call request_irq(). (This is technically already the correct development practice, but some drivers probably expect not to receive interrupts until they have performed some I/O.) Signed-off-by: Brian Norris <computersforpeace@gmail.com> Signed-off-by: Kevin Cernekee <cernekee@gmail.com> Cc: f.fainelli@gmail.com Cc: jaedon.shin@gmail.com Cc: abrestic@chromium.org Cc: tglx@linutronix.de Cc: jason@lakedaemon.net Cc: jogo@openwrt.org Cc: arnd@arndb.de Cc: computersforpeace@gmail.com Cc: linux-mips@linux-mips.org Cc: devicetree@vger.kernel.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/8840/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * | | IRQCHIP: irq-mips-gic: Add new functions to start/stop the GIC counterMarkos Chandras2015-03-311-0/+21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We add new functions to start and stop the GIC counter since there are no guarantees the counter will be running after a CPU reset. The GIC counter is stopped by setting the 29th bit on the GIC Config register and it is started by clearing that bit. Signed-off-by: Markos Chandras <markos.chandras@imgtec.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Jason Cooper <jason@lakedaemon.net> Cc: Andrew Bresticker <abrestic@chromium.org> Cc: Qais Yousef <qais.yousef@imgtec.com> Cc: linux-kernel@vger.kernel.org Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/9594/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * | | IRQCHIP: mips-gic: Add function for retrieving FDC IRQJames Hogan2015-03-311-0/+23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add a function to the MIPS GIC driver for retrieving the Fast Debug Channel (FDC) interrupt number, similar to the existing ones for the timer and perf counter interrupts. This will be used by platform implementations of get_c0_fdc_int() if a GIC is present. A workaround exists for interAptiv and proAptiv which claim to be able to route the FDC interrupt but don't seem to be able to in practice (at least on Malta). [ralf@linux-mips.org: Fix conflict.] Signed-off-by: James Hogan <james.hogan@imgtec.com> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Andrew Bresticker <abrestic@chromium.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Jason Cooper <jason@lakedaemon.net> Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/9142/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * | | irqchip: mips-gic: Don't treat FDC IRQ as percpu devidJames Hogan2015-03-311-5/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Treat the Fast Debug Channel (FDC) interrupt the same as the timer and performance counter interrupts. Like them, the FDC IRQ is also per-VPE, and also doesn't use a per-CPU device ID yet. Per-CPU device IDs don't seem to work with IRQF_SHARED which is needed for compatibility with cores which don't route the FDC IRQ through the GIC. For hardware which routes FDC IRQs through the GIC this is something that could be added later. Signed-off-by: James Hogan <james.hogan@imgtec.com> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Andrew Bresticker <abrestic@chromium.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Jason Cooper <jason@lakedaemon.net> Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/9141/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * | | IRQCHIP: mips-gic: Fix typo in commentJames Hogan2015-03-311-1/+1
| | |/ | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix typo in comment in gic_get_c0_perfcount_int: "erformance" -> "performance". Signed-off-by: James Hogan <james.hogan@imgtec.com> Cc: Andrew Bresticker <abrestic@chromium.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Jason Cooper <jason@lakedaemon.net> Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Cc: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Andrew Bresticker <abrestic@chromium.org> Patchwork: https://patchwork.linux-mips.org/patch/9126/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* | | Merge tag 'irqchip-core-4.1-3' of ↵Thomas Gleixner2015-04-114-138/+508
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.infradead.org/users/jcooper/linux into irq/core irqchip core change for v4.1 (round 3) from Jason Cooper Purge the gic_arch_extn hacks and abuse by using the new stacked domains NOTE: Due to the nature of these changes, patches crossing subsystems have been kept together in their own branches. - tegra - Handle the LIC properly - omap - Convert crossbar to stacked domains - kill arm,routable-irqs in GIC binding - exynos - Convert PMU wakeup to stacked domains - shmobile, ux500, zynq (irq_set_wake branch) - Switch from abusing gic_arch_extn to using gic_set_irqchip_flags
| * \ \ Merge branch 'irqchip/stacked-irq_set_wake' into irqchip/coreJason Cooper2015-04-111-0/+5
| |\ \ \ | | | | | | | | | | | | | | | | | | | | Conflicts: drivers/irqchip/irq-gic.c
| | * | | irqchip: gic: Add an entry point to set up irqchip flagsMarc Zyngier2015-03-151-0/+5
| | | |/ | | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | A common use of gic_arch_extn is to set up additional flags to the GIC irqchip. It looks like a benign enough hack that doesn't really require the users of that feature to be converted to stacked domains. Add a gic_set_irqchip_flags() function that platform code can call instead of using the dreaded gic_arch_extn. Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Link: https://lkml.kernel.org/r/1426088737-15817-2-git-send-email-marc.zyngier@arm.com Signed-off-by: Jason Cooper <jason@lakedaemon.net>
| * | | Merge branch 'irqchip/stacked-omap' into irqchip/coreJason Cooper2015-04-112-141/+128
| |\ \ \
| | * | | irqchip: gic: Get rid of routable domainMarc Zyngier2015-03-151-54/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The only user of the so called "routable domain" functionality now being fixed, let's clean up the GIC. Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Link: https://lkml.kernel.org/r/1426088629-15377-5-git-send-email-marc.zyngier@arm.com Signed-off-by: Jason Cooper <jason@lakedaemon.net>
| | * | | irqchip: crossbar: Convert dra7 crossbar to stacked domainsMarc Zyngier2015-03-151-87/+123
| | |/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Support for the TI crossbar used on the DRA7 family of chips is implemented as an ugly hack on the side of the GIC. Converting it to stacked domains makes it slightly more palatable, as it results in a cleanup. Unfortunately, as the DT bindings failed to acknowledge the fact that this is actually yet another interrupt controller (the third, actually), we have yet another breakage. Oh well. Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Link: https://lkml.kernel.org/r/1426088629-15377-3-git-send-email-marc.zyngier@arm.com Signed-off-by: Jason Cooper <jason@lakedaemon.net>
| * | | Merge branch 'irqchip/stacked-tegra' into irqchip/coreJason Cooper2015-04-112-0/+378
| |\ \ \
| | * | | irqchip: tegra: Add Tegra210 supportThierry Reding2015-03-291-1/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Tegra210 uses the same legacy interrupt controller as older generations but it adds a sixth instance. Signed-off-by: Thierry Reding <treding@nvidia.com> Link: https://lkml.kernel.org/r/1427106379-14037-1-git-send-email-thierry.reding@gmail.com Signed-off-by: Jason Cooper <jason@lakedaemon.net>
| | * | | irqchip: tegra: Add DT-based support for legacy interrupt controllerMarc Zyngier2015-03-152-0/+372
| | |/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Tegra's LIC (Legacy Interrupt Controller) has been so far only supported as a weird extension of the GIC, which is not exactly pretty. The stacked IRQ domain framework fits this pretty well, and allows the LIC code to be turned into a standalone irqchip. In the process, make the driver DT aware, something that was sorely missing from the mach-tegra implementation. Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Link: https://lkml.kernel.org/r/1426088583-15097-3-git-send-email-marc.zyngier@arm.com Signed-off-by: Jason Cooper <jason@lakedaemon.net>
* | | | Merge tag 'irqchip-core-4.1-2' of ↵Thomas Gleixner2015-04-117-40/+343
|\| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.infradead.org/users/jcooper/linux into irq/core irqchip core changes for v4.1 (round 2) from Jason Cooper - gic - Tolerate uni-processor systems better in gic_get_cpumask() - mvebu - Handle per-cpu interrupts properly - Enable PMU interrupts - Enable wakeup source - vybrid - Add MSCM interrupt router - renesas - Add PM and wakeup support
| * | | Merge branch 'irqchip/renesas' into irqchip/coreJason Cooper2015-04-031-6/+48
| |\ \ \
| | * | | irqchip: renesas-irqc: Add wake-up supportGeert Uytterhoeven2015-04-031-1/+25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The IRQC module clock is managed through Runtime PM and PM Domains. If wake-up is enabled, this clock must not be disabled during system suspend. Hence implement irq_chip.irq_set_wake(), which increments/decrements the clock's enable_count when needed. This fixes wake-up by gpio-keys on r8a73a4/ape6evm. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Simon Horman <horms+renesas@verge.net.au> Link: https://lkml.kernel.org/r/1427889606-18671-1-git-send-email-geert+renesas@glider.be Signed-off-by: Jason Cooper <jason@lakedaemon.net>
| | * | | irqchip: renesas-irqc: Add minimal runtime PM supportGeert Uytterhoeven2015-03-231-0/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is just enough to let pm_clk_*() enable the functional clock, and manage it for suspend/resume, if present. Before, it was assumed enabled by the bootloader or reset state. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Simon Horman <horms+renesas@verge.net.au> Link: https://lkml.kernel.org/r/1426704961-27322-3-git-send-email-geert+renesas@glider.be Signed-off-by: Jason Cooper <jason@lakedaemon.net>
| | * | | irqchip: renesas-irqc: Add more register documentationGeert Uytterhoeven2015-03-231-5/+15
| | |/ / | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Simon Horman <horms+renesas@verge.net.au> Link: https://lkml.kernel.org/r/1426704961-27322-2-git-send-email-geert+renesas@glider.be Signed-off-by: Jason Cooper <jason@lakedaemon.net>
| * | | Merge branch 'irqchip/mvebu' into irqchip/coreJason Cooper2015-04-031-0/+1
| |\ \ \
| | * | | irqchip: armada-370-xp: Allow using wakeup sourceGregory CLEMENT2015-04-031-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | On the Armada 370/XP SoCs, in standby mode the SoC stay powered and it is possible to wake-up from any interrupt sources. This patch adds flag to the MPIC irqchip driver to let linux know this. Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com> Link: https://lkml.kernel.org/r/1427724278-12379-5-git-send-email-gregory.clement@free-electrons.com Signed-off-by: Jason Cooper <jason@lakedaemon.net>
| * | | | irqchip: mips-gic: Add new functions to start/stop the GIC counterMarkos Chandras2015-03-291-0/+21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We add new functions to start and stop the GIC counter since there are no guarantees the counter will be running after a CPU reset. The GIC counter is stopped by setting the 29th bit on the GIC Config register and it is started by clearing that bit. Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Jason Cooper <jason@lakedaemon.net> Cc: Andrew Bresticker <abrestic@chromium.org> Cc: Qais Yousef <qais.yousef@imgtec.com> Cc: <linux-kernel@vger.kernel.org> Signed-off-by: Markos Chandras <markos.chandras@imgtec.com> Link: https://lkml.kernel.org/r/1427113923-9840-2-git-send-email-markos.chandras@imgtec.com Signed-off-by: Jason Cooper <jason@lakedaemon.net>
| * | | | irqchip: digicolor: Move digicolor_set_gc to init sectionBaruch Siach2015-03-231-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The digicolor_set_gc() routine is only called from __init annotated digicolor_of_init(). Annotate digicolor_set_gc() with __init as well to save a few bytes at run time. Signed-off-by: Baruch Siach <baruch@tkos.co.il> Link: https://lkml.kernel.org/r/a3b57ecdbe0b07f55c20c07ff98f1f694275722d.1427009985.git.baruch@tkos.co.il Signed-off-by: Jason Cooper <jason@lakedaemon.net>
| * | | | Merge branch 'irqchip/vybrid' into irqchip/coreJason Cooper2015-03-152-0/+213
| |\ \ \ \
| | * | | | irqchip: vf610-mscm-ir: Add support for Vybrid MSCM interrupt routerStefan Agner2015-03-082-0/+213
| | | |/ / | | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This adds support for Vybrid's interrupt router. On VF6xx models, almost all peripherals can be used by either of the two CPU's, the Cortex-A5 or the Cortex-M4. The interrupt router routes the peripheral interrupts to the configured CPU. This IRQ chip driver configures the interrupt router to route the requested interrupt to the CPU the kernel is running on. The driver makes use of the irqdomain hierarchy support. The parent is given by the device tree. This should be one of the two possible parents either ARM GIC or the ARM NVIC interrupt controller. The latter is currently not yet supported. Note that there is no resource control mechnism implemented to avoid concurrent access of the same peripheral. The user needs to make sure to use device trees which assign the peripherals orthogonally. However, this driver warns the user in case the interrupt is already configured for the other CPU. This provides a poor man's resource controller. Acked-by: Marc Zyngier <marc.zyngier@arm.com> Signed-off-by: Stefan Agner <stefan@agner.ch> Link: https://lkml.kernel.org/r/1425249689-32354-2-git-send-email-stefan@agner.ch Signed-off-by: Jason Cooper <jason@lakedaemon.net>
| * | | | Merge branch 'irqchip/mvebu' into irqchip/coreJason Cooper2015-03-151-30/+75
| |\ \ \ \ | | | |/ / | | |/| |
| | * | | irqchip: armada-370-xp: Enable the PMU interruptsMaxime Ripard2015-03-081-3/+20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In order to let the Performance Monitoring Unit interrupts flowing in the MPIC, we need to unmask these interrupts in the Coherency Fabric Local Interrupt Mask Register. Since this register is a CPU-local register, unmasking this interrupt needs to be done on the boot CPU when the driver initializes, but also on the secondary CPU when they are brought up. Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com> Acked-by: Gregory CLEMENT <gregory.clement@free-electrons.com> Link: https://lkml.kernel.org/r/1425379400-4346-4-git-send-email-maxime.ripard@free-electrons.com Signed-off-by: Jason Cooper <jason@lakedaemon.net>
| | * | | irqchip: armada-370-xp: Introduce a is_percpu_irq() helper for readabilityEzequiel Garcia2015-03-081-4/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This commit introduces a helper function is_percpu_irq(), to be used when interrupts are mapped to decide which ones are set as per CPU. This change will allow to extend the list of per cpu interrupts in a less intrusive fashion; also, it makes the code slightly more readable by keeping a list of the per CPU interrupts. Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com> Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com> Acked-by: Gregory CLEMENT <gregory.clement@free-electrons.com> Link: https://lkml.kernel.org/r/1425379400-4346-3-git-send-email-maxime.ripard@free-electrons.com Signed-off-by: Jason Cooper <jason@lakedaemon.net>
| | * | | irqchip: armada-370-xp: Initialize per cpu registers when CONFIG_SMP=NEzequiel Garcia2015-03-081-24/+23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The irqchip driver called armada_xp_mpic_smp_cpu_init() when CONFIG_SMP=Y to initialize some per cpu registers. The function is called on each CPU by calling it explicitly on the boot CPU and then using a CPU notifier for the non boot CPUs. This commit removes the CONFIG_SMP constrain, so the per cpu registers are also initialized when CONFIG_SMP=N, which is the right thing to do. Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com> Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com> Acked-by: Gregory CLEMENT <gregory.clement@free-electrons.com> Link: https://lkml.kernel.org/r/1425379400-4346-2-git-send-email-maxime.ripard@free-electrons.com Signed-off-by: Jason Cooper <jason@lakedaemon.net>
| * | | | irqchip: gic: Don't complain in gic_get_cpumask() if UP systemStephen Boyd2015-03-151-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In a uniprocessor implementation the interrupt processor targets registers are read-as-zero/write-ignored (RAZ/WI). Unfortunately gic_get_cpumask() will print a critical message saying GIC CPU mask not found - kernel will fail to boot. if these registers all read as zero, but there won't actually be a problem on uniprocessor systems and the kernel will boot just fine. Skip this check if we're running a UP kernel or if we detect that the hardware only supports a single processor. Acked-by: Nicolas Pitre <nico@linaro.org> Acked-by: Felipe Balbi <balbi@ti.com> Acked-by: Nishanth Menon <nm@ti.com> Acked-by: Stefan Agner <stefan@agner.ch> Cc: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org> Link: https://lkml.kernel.org/r/1426141291-21641-1-git-send-email-sboyd@codeaurora.org Signed-off-by: Jason Cooper <jason@lakedaemon.net>
* | | | | Merge tag 'irqchip-core-4.0' of git://git.infradead.org/users/jcooper/linux ↵Thomas Gleixner2015-04-084-2/+216
|\| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | into irq/core irqchip core changes for v4.0 from Jason Cooper - ST - New driver, irq-st - Renesas - Use u32 type for 32bit regs
| * | | | Merge branch 'irqchip/st' into irqchip/coreJason Cooper2015-03-073-0/+214
| |\ \ \ \
| | * | | | irqchip: st: Supply new driver for STi based devicesLee Jones2015-03-033-0/+214
| | | |/ / | | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This driver is used to enable System Configuration Register controlled External, CTI (Core Sight), PMU (Performance Management), and PL310 L2 Cache IRQs prior to use. Signed-off-by: Lee Jones <lee.jones@linaro.org> Link: https://lkml.kernel.org/r/1424272444-16230-3-git-send-email-lee.jones@linaro.org Signed-off-by: Jason Cooper <jason@lakedaemon.net>
| * / | | irqchip: renesas-irqc: Use u32 to store 32-bit register valuesGeert Uytterhoeven2015-03-031-2/+2
| |/ / / | | | | | | | | | | | | | | | | | | | | Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lkml.kernel.org/r/1424947412-8061-1-git-send-email-geert+renesas@glider.be Signed-off-by: Jason Cooper <jason@lakedaemon.net>
* | | | irqchip: GICv3: Add support for irq_[get, set]_irqchip_state()Marc Zyngier2015-04-081-13/+70
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add the required hooks for the internal state of an interrupt to be exposed to other subsystems. Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Cc: linux-arm-kernel@lists.infradead.org Cc: Abhijeet Dharmapurikar <adharmap@codeaurora.org> Cc: Stephen Boyd <sboyd@codeaurora.org> Cc: Phong Vo <pvo@apm.com> Cc: Linus Walleij <linus.walleij@linaro.org> Cc: Tin Huynh <tnhuynh@apm.com> Cc: Y Vo <yvo@apm.com> Cc: Toan Le <toanle@apm.com> Cc: Bjorn Andersson <bjorn@kryo.se> Cc: Jason Cooper <jason@lakedaemon.net> Cc: Arnd Bergmann <arnd@arndb.de> Link: http://lkml.kernel.org/r/1426676484-21812-4-git-send-email-marc.zyngier@arm.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* | | | irqchip: GIC: Add support for irq_[get, set]_irqchip_state()Marc Zyngier2015-04-081-4/+65
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add the required hooks for the internal state of an interrupt to be exposed to other subsystems. Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Cc: linux-arm-kernel@lists.infradead.org Cc: Abhijeet Dharmapurikar <adharmap@codeaurora.org> Cc: Stephen Boyd <sboyd@codeaurora.org> Cc: Phong Vo <pvo@apm.com> Cc: Linus Walleij <linus.walleij@linaro.org> Cc: Tin Huynh <tnhuynh@apm.com> Cc: Y Vo <yvo@apm.com> Cc: Toan Le <toanle@apm.com> Cc: Bjorn Andersson <bjorn@kryo.se> Cc: Jason Cooper <jason@lakedaemon.net> Cc: Arnd Bergmann <arnd@arndb.de> Link: http://lkml.kernel.org/r/1426676484-21812-3-git-send-email-marc.zyngier@arm.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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