summaryrefslogtreecommitdiffstats
path: root/drivers/irqchip
AgeCommit message (Collapse)AuthorFilesLines
2014-12-15Merge branch 'irq-irqdomain-arm-for-linus' of ↵Linus Torvalds7-64/+2109
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull irq domain ARM updates from Thomas Gleixner: "This set of changes make use of hierarchical irqdomains to provide: - MSI/ITS support for GICv3 - MSI support for GICv2m - Interrupt polarity extender for GICv1 Marc has come more cleanups for the existing extension hooks of GIC in the pipeline, but they are going to be 3.20 material" * 'irq-irqdomain-arm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (22 commits) irqchip: gicv3-its: Fix ITT allocation irqchip: gicv3-its: Move some alloc/free code to activate/deactivate irqchip: gicv3-its: Fix domain free in multi-MSI case irqchip: gic: Remove warning by including linux/irqdomain.h irqchip: gic-v2m: Add DT bindings for GICv2m irqchip: gic-v2m: Add support for ARM GICv2m MSI(-X) doorbell irqchip: mtk-sysirq: dt-bindings: Add bindings for mediatek sysirq irqchip: mtk-sysirq: Add sysirq interrupt polarity support irqchip: gic: Support hierarchy irq domain. irqchip: GICv3: Binding updates for ITS irqchip: GICv3: ITS: enable compilation of the ITS driver irqchip: GICv3: ITS: plug ITS init into main GICv3 code irqchip: GICv3: ITS: DT probing and initialization irqchip: GICv3: ITS: MSI support irqchip: GICv3: ITS: device allocation and configuration irqchip: GICv3: ITS: tables allocators irqchip: GICv3: ITS: LPI allocator irqchip: GICv3: ITS: irqchip implementation irqchip: GICv3: ITS command queue irqchip: GICv3: rework redistributor structure ...
2014-12-14Merge tag 'driver-core-3.19-rc1' of ↵Linus Torvalds3-3/+0
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core Pull driver core update from Greg KH: "Here's the set of driver core patches for 3.19-rc1. They are dominated by the removal of the .owner field in platform drivers. They touch a lot of files, but they are "simple" changes, just removing a line in a structure. Other than that, a few minor driver core and debugfs changes. There are some ath9k patches coming in through this tree that have been acked by the wireless maintainers as they relied on the debugfs changes. Everything has been in linux-next for a while" * tag 'driver-core-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (324 commits) Revert "ath: ath9k: use debugfs_create_devm_seqfile() helper for seq_file entries" fs: debugfs: add forward declaration for struct device type firmware class: Deletion of an unnecessary check before the function call "vunmap" firmware loader: fix hung task warning dump devcoredump: provide a one-way disable function device: Add dev_<level>_once variants ath: ath9k: use debugfs_create_devm_seqfile() helper for seq_file entries ath: use seq_file api for ath9k debugfs files debugfs: add helper function to create device related seq_file drivers/base: cacheinfo: remove noisy error boot message Revert "core: platform: add warning if driver has no owner" drivers: base: support cpu cache information interface to userspace via sysfs drivers: base: add cpu_device_create to support per-cpu devices topology: replace custom attribute macros with standard DEVICE_ATTR* cpumask: factor out show_cpumap into separate helper function driver core: Fix unbalanced device reference in drivers_probe driver core: fix race with userland in device_add() sysfs/kernfs: make read requests on pre-alloc files use the buffer. sysfs/kernfs: allow attributes to request write buffer be pre-allocated. fs: sysfs: return EGBIG on write if offset is larger than file size ...
2014-12-13irqchip: gicv3-its: Fix ITT allocationMarc Zyngier1-3/+10
When issuing a MAPD command, one of the parameters passed to the ITS is the number of EventID bits used to index the per-device Interrupt Translation Table (ITT). Crucially, this is the number of bits *minus one*. This has two consequences: - The size of the ITT has to be a strict power of two, no matter how many different events the device is actually going to generate. - It is impossible to express an ITT with a single entry, as you would have to tell the ITS to "use zero bit from the EventID", and that clashes with "minus one" above. Fix this by allocating the ITT with the number of vectors rounded up to the next power of two, with a minimum of two entries. Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Cc: linux-arm-kernel@lists.infradead.org Cc: Yun Wu (Abel) <wuyun.wu@huawei.com> Cc: Robert Richter <robert.richter@caviumnetworks.com> Cc: Jason Cooper <jason@lakedaemon.net> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2014-12-13irqchip: gicv3-its: Move some alloc/free code to activate/deactivateMarc Zyngier1-7/+23
The ITS code could do a bit less in the alloc/free paths, and a bit more in the activate/deactivate methods, giving a better separation between software allocation and HW programing. Suggested-by: Wuyun Wu (Abel) <wuyun.wu@huawei.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Cc: linux-arm-kernel@lists.infradead.org Cc: Yun Wu (Abel) <wuyun.wu@huawei.com> Cc: Robert Richter <robert.richter@caviumnetworks.com> Cc: Jason Cooper <jason@lakedaemon.net> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2014-12-13irqchip: gicv3-its: Fix domain free in multi-MSI caseMarc Zyngier1-1/+1
Fix stupid thinko on the path freeing the interrupts, where only the first interrupt would get reset, and none of the others. This should only affect multi-MSI allocations. Reported-by: Wuyun Wu (Abel) <wuyun.wu@huawei.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Cc: linux-arm-kernel@lists.infradead.org Cc: Robert Richter <robert.richter@caviumnetworks.com> Cc: Jason Cooper <jason@lakedaemon.net> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2014-12-11Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linusLinus Torvalds3-0/+794
Pull MIPS updates from Ralf Baechle: "This is an unusually large pull request for MIPS - in parts because lots of patches missed the 3.18 deadline but primarily because some folks opened the flood gates. - Retire the MIPS-specific phys_t with the generic phys_addr_t. - Improvments for the backtrace code used by oprofile. - Better backtraces on SMP systems. - Cleanups for the Octeon platform code. - Cleanups and fixes for the Loongson platform code. - Cleanups and fixes to the firmware library. - Switch ATH79 platform to use the firmware library. - Grand overhault to the SEAD3 and Malta interrupt code. - Move the GIC interrupt code to drivers/irqchip - Lots of GIC cleanups and updates to the GIC code to use modern IRQ infrastructures and features of the kernel. - OF documentation updates for the GIC bindings - Move GIC clocksource driver to drivers/clocksource - Merge GIC clocksource driver with clockevent driver. - Further updates to bring the GIC clocksource driver up to date. - R3000 TLB code cleanups - Improvments to the Loongson 3 platform code. - Convert pr_warning to pr_warn. - Merge a bunch of small lantiq and ralink fixes that have been staged/lingering inside the openwrt tree for a while. - Update archhelp for IP22/IP32 - Fix a number of issues for Loongson 1B. - New clocksource and clockevent driver for Loongson 1B. - Further work on clk handling for Loongson 1B. - Platform work for Broadcom BMIPS. - Error handling cleanups for TurboChannel. - Fixes and optimization to the microMIPS support. - Option to disable the FTLB. - Dump more relevant information on machine check exception - Change binfmt to allow arch to examine PT_*PROC headers - Support for new style FPU register model in O32 - VDSO randomization. - BCM47xx cleanups - BCM47xx reimplement the way the kernel accesses NVRAM information. - Random cleanups - Add support for ATH25 platforms - Remove pointless locking code in some PCI platforms. - Some improvments to EVA support - Minor Alchemy cleanup" * 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (185 commits) MIPS: Add MFHC0 and MTHC0 instructions to uasm. MIPS: Cosmetic cleanups of page table headers. MIPS: Add CP0 macros for extended EntryLo registers MIPS: Remove now unused definition of phys_t. MIPS: Replace use of phys_t with phys_addr_t. MIPS: Replace MIPS-specific 64BIT_PHYS_ADDR with generic PHYS_ADDR_T_64BIT PCMCIA: Alchemy Don't select 64BIT_PHYS_ADDR in Kconfig. MIPS: lib: memset: Clean up some MIPS{EL,EB} ifdefery MIPS: iomap: Use __mem_{read,write}{b,w,l} for MMIO MIPS: <asm/types.h> fix indentation. MAINTAINERS: Add entry for BMIPS multiplatform kernel MIPS: Enable VDSO randomization MIPS: Remove a temporary hack for debugging cache flushes in SMTC configuration MIPS: Remove declaration of obsolete arch_init_clk_ops() MIPS: atomic.h: Reformat to fit in 79 columns MIPS: Apply `.insn' to fixup labels throughout MIPS: Fix microMIPS LL/SC immediate offsets MIPS: Kconfig: Only allow 32-bit microMIPS builds MIPS: signal.c: Fix an invalid cast in ISA mode bit handling MIPS: mm: Only build one microassembler that is suitable ...
2014-12-10Merge branch 'irq-irqdomain-for-linus' of ↵Linus Torvalds1-8/+8
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull irq domain updates from Thomas Gleixner: "The real interesting irq updates: - Support for hierarchical irq domains: For complex interrupt routing scenarios where more than one interrupt related chip is involved we had no proper representation in the generic interrupt infrastructure so far. That made people implement rather ugly constructs in their nested irq chip implementations. The main offenders are x86 and arm/gic. To distangle that mess we have now hierarchical irqdomains which seperate the various interrupt chips and connect them via the hierarchical domains. That keeps the domain specific details internal to the particular hierarchy level and removes the criss/cross referencing of chip internals. The resulting hierarchy for a complex x86 system will look like this: vector mapped: 74 msi-0 mapped: 2 dmar-ir-1 mapped: 69 ioapic-1 mapped: 4 ioapic-0 mapped: 20 pci-msi-2 mapped: 45 dmar-ir-0 mapped: 3 ioapic-2 mapped: 1 pci-msi-1 mapped: 2 htirq mapped: 0 Neither ioapic nor pci-msi know about the dmar interrupt remapping between themself and the vector domain. If interrupt remapping is disabled ioapic and pci-msi become direct childs of the vector domain. In hindsight we should have done that years ago, but in hindsight we always know better :) - Support for generic MSI interrupt domain handling We have more and more non PCI related MSI interrupts, so providing a generic infrastructure for this is better than having all affected architectures implementing their own private hacks. - Support for PCI-MSI interrupt domain handling, based on the generic MSI support. This part carries the pci/msi branch from Bjorn Helgaas pci tree to avoid a massive conflict. The PCI/MSI parts are acked by Bjorn. I have two more branches on top of this. The full conversion of x86 to hierarchical domains and a partial conversion of arm/gic" * 'irq-irqdomain-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (41 commits) genirq: Move irq_chip_write_msi_msg() helper to core PCI/MSI: Allow an msi_controller to be associated to an irq domain PCI/MSI: Provide mechanism to alloc/free MSI/MSIX interrupt from irqdomain PCI/MSI: Enhance core to support hierarchy irqdomain PCI/MSI: Move cached entry functions to irq core genirq: Provide default callbacks for msi_domain_ops genirq: Introduce msi_domain_alloc/free_irqs() asm-generic: Add msi.h genirq: Add generic msi irq domain support genirq: Introduce callback irq_chip.irq_write_msi_msg genirq: Work around __irq_set_handler vs stacked domains ordering issues irqdomain: Introduce helper function irq_domain_add_hierarchy() irqdomain: Implement a method to automatically call parent domains alloc/free genirq: Introduce helper irq_domain_set_info() to reduce duplicated code genirq: Split out flow handler typedefs into seperate header file genirq: Add IRQ_SET_MASK_OK_DONE to support stacked irqchip genirq: Introduce irq_chip.irq_compose_msi_msg() to support stacked irqchip genirq: Add more helper functions to support stacked irq_chip genirq: Introduce helper functions to support stacked irq_chip irqdomain: Do irq_find_mapping and set_type for hierarchy irqdomain in case OF ...
2014-12-10Merge branch 'irq-core-for-linus' of ↵Linus Torvalds13-159/+271
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull irq core updates from Thomas Gleixner: "This is the first (boring) part of irq updates: - support for big endian I/O accessors in the generic irq chip - cleanup of brcmstb/bcm7120 drivers so they can be reused for non ARM SoCs - the usual pile of fixes and updates for the various ARM irq chips" * 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (25 commits) irqchip: dw-apb-ictl: Add PM support irqchip: dw-apb-ictl: Enable IRQ_GC_MASK_CACHE_PER_TYPE irqchip: dw-apb-ictl: Always use use {readl|writel}_relaxed ARM: orion: convert the irq_reg_{readl,writel} calls to the new API irqchip: atmel-aic: Add missing entry for rm9200 irq fixups irqchip: atmel-aic: Rename at91sam9_aic_irq_fixup for naming consistency irqchip: atmel-aic: Add specific irq fixup function for sam9g45 and sam9rl irqchip: atmel-aic: Add irq fixups for at91sam926x SoCs irqchip: atmel-aic: Add irq fixup for RTT block irqchip: brcmstb-l2: Convert driver to use irq_reg_{readl,writel} irqchip: bcm7120-l2: Convert driver to use irq_reg_{readl,writel} irqchip: bcm7120-l2: Decouple driver from brcmstb-l2 irqchip: bcm7120-l2: Extend driver to support 64+ bit controllers irqchip: bcm7120-l2: Use gc->mask_cache to simplify suspend/resume functions irqchip: bcm7120-l2: Fix missing nibble in gc->unused mask irqchip: bcm7120-l2: Make sure all register accesses use base+offset irqchip: bcm7120-l2, brcmstb-l2: Remove ARM Kconfig dependency irqchip: bcm7120-l2: Eliminate bad IRQ check irqchip: brcmstb-l2: Eliminate dependency on ARM code genirq: Generic chip: Add big endian I/O accessors ...
2014-12-09Merge tag 'dt-for-linus' of ↵Linus Torvalds1-0/+2
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC DT updates from Arnd Bergmann: "The DT branch adds a lot of new stuff for additional SoC and board support. The branch is the largest one and contains 513 out of the total 972 non-merge arm-soc changesets for 3.19. Most of the changes are about enabling additional on-chip devices for existing machines, but there are also an unusual number of new SoC types being added this time: - AMLogic Meson8 - ARM Realview in DT mode - Allwinner A80 - Broadcom BCM47081 - Broadcom Cygnus - Freescale LS1021A - Freescale Vybrid 500 series - Mediatek MT6592, MT8127, MT8135 - STMicroelectronics STiH410 - Samsung Exynos4415 The level of support for the above differs widely, some are just stubs with nothing more than CPU, memory and a UART, but others are fairly complete. As usual, these get extended over time. There are also many new boards getting added, this is the list of model strings that are showing up in new dts files: - ARM RealView PB1176 - Altera SOCFPGA Arria 10 - Asus RT-N18U (BCM47081) - Buffalo WZR-1750DHP (BCM4708) - Buffalo WZR-600DHP2 (BCM47081) - Cygnus Enterprise Phone (BCM911360_ENTPHN) - D-Link DIR-665 - Google Spring - IGEP COM MODULE Rev. G (TI OMAP AM/DM37x) - IGEPv2 Rev. F (TI OMAP AM/DM37x) - LS1021A QDS Board - LS1021A TWR Board - LeMaker Banana Pi - MarsBoard RK3066 - MediaTek MT8127 Moose Board - MediaTek MT8135 evaluation board - Mele M3 - Merrii A80 Optimus Board - Netgear R6300 V2 (BCM4708) - Nomadik STN8815NHK - NovaTech OrionLXm - Olimex A20-OLinuXino-LIME2 - Raspberry Pi Model B+ - STiH410 B2120 - Samsung Monk board - Samsung Rinato board - Synology DS213j - Synology DS414 - TBS2910 Matrix ARM mini PC - TI AM5728 BeagleBoard-X15 - Toradex Colibri VF50 on Colibri Evaluation Board - Zynq ZYBO Development Board Other notable changes include: - exynos: cleanup of existing dts files - mvebu: improved pinctrl support for Armada 370/XP - nomadik: restructuring dts files - omap: added CAN bus support - shmobile: added clock support for some SoCs - shmobile: added sound support for some SoCs - sirf: reset controller support - sunxi: continuing the relicensing under dual GPL/MIT - sunxi: lots of new on-chip device support - sunxi: working simplefb support (long awaited) - various: provide stdout-path property for earlycon" * tag 'dt-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (510 commits) ARM: dts: rk3288: add arm,cpu-registers-not-fw-configured Revert "ARM: dts: rockchip: temporarily disable smp on rk3288" ARM: BCM5301X: Add DT for Buffalo WZR-600DHP2 ARM: BCM5301X: Add DT for Asus RT-N18U ARM: BCM5301X: Add DT for Buffalo WZR-1750DHP ARM: BCM5301X: Add DT for Netgear R6300 V2 ARM: BCM5301X: Add buttons for Netgear R6250 ARM: dts: rockchip: Add input voltage supply regulators in pmic for Marsboard ARM: BCM5301X: Add IRQs to Broadcom's bus-axi in DTS file arm: dts: zynq: Add Digilent ZYBO board arm: dts: zynq: Move crystal freq. to board level doc: dt: vendor-prefixes: Add Digilent Inc Documentation: devicetree: Fix Xilinx VDMA specification ARM: dts: rockchip: set FIFO size for SDMMC, SDIO and EMMC on rk3066 and rk3188 ARM: dts: rockchip: add label property for leds on Radxa Rock ARM: BCM5301X: Add LEDs for Netgear R6250 V1 ARM: BCM5301X: Add Broadcom's bus-axi to the DTS file ARM: dts: add sysreg phandle to i2c device nodes for exynos ARM: dts: Remove unused bootargs from exynos3250-rinato ARM: dts: add board dts file for Exynos3250-based Monk board ...
2014-12-09Merge tag 'soc-for-linus' of ↵Linus Torvalds1-0/+52
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC platform changes from Arnd Bergmann: "New and updated SoC support, notable changes include: - bcm: brcmstb SMP support initial iproc/cygnus support - exynos: Exynos4415 SoC support PMU and suspend support for Exynos5420 PMU support for Exynos3250 pm related maintenance - imx: new LS1021A SoC support vybrid 610 global timer support - integrator: convert to using multiplatform configuration - mediatek: earlyprintk support for mt8127/mt8135 - meson: meson8 soc and l2 cache controller support - mvebu: Armada 38x CPU hotplug support drop support for prerelease Armada 375 Z1 stepping extended suspend support, now works on Armada 370/XP - omap: hwmod related maintenance prcm cleanup - pxa: initial pxa27x DT handling - rockchip: SMP support for rk3288 add cpu frequency scaling support - shmobile: r8a7740 power domain support various small restart, timer, pci apmu changes - sunxi: Allwinner A80 (sun9i) earlyprintk support - ux500: power domain support Overall, a significant chunk of changes, coming mostly from the usual suspects: omap, shmobile, samsung and mvebu, all of which already contain a lot of platform specific code in arch/arm" * tag 'soc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (187 commits) ARM: mvebu: use the cpufreq-dt platform_data for independent clocks soc: integrator: Add terminating entry for integrator_cm_match ARM: mvebu: add SDRAM controller description for Armada XP ARM: mvebu: adjust mbus controller description on Armada 370/XP ARM: mvebu: add suspend/resume DT information for Armada XP GP ARM: mvebu: synchronize secondary CPU clocks on resume ARM: mvebu: make sure MMU is disabled in armada_370_xp_cpu_resume ARM: mvebu: Armada XP GP specific suspend/resume code ARM: mvebu: reserve the first 10 KB of each memory bank for suspend/resume ARM: mvebu: implement suspend/resume support for Armada XP clk: mvebu: add suspend/resume for gatable clocks bus: mvebu-mbus: provide a mechanism to save SDRAM window configuration bus: mvebu-mbus: suspend/resume support clocksource: time-armada-370-xp: add suspend/resume support irqchip: armada-370-xp: Add suspend/resume support ARM: add lolevel debug support for asm9260 ARM: add mach-asm9260 ARM: EXYNOS: use u8 for val[] in struct exynos_pmu_conf power: reset: imx-snvs-poweroff: add power off driver for i.mx6 ARM: imx: temporarily remove CONFIG_SOC_FSL from LS1021A ...
2014-11-30irqchip: armada-370-xp: Add suspend/resume supportThomas Petazzoni1-0/+52
This commit adds suspend/resume support to the irqchip driver used on Armada XP platforms (amongst others). It does so by adding a set of suspend/resume syscore_ops, that will respectively save and restore the necessary registers to ensure interrupts continue to work after resume. It is worth mentioning that the affinity is lost during a suspend/resume cycle, because when a secondary CPU is brought off-line, all interrupts that are assigned to this CPU in terms of affinity gets re-assigned to a still running CPU. Therefore, right before entering suspend, all interrupts are assigned to the boot CPU. Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Jason Cooper <jason@lakedaemon.net> Cc: linux-kernel@vger.kernel.org Link: https://lkml.kernel.org/r/1416585613-2113-4-git-send-email-thomas.petazzoni@free-electrons.com Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2014-11-26irqchip: dw-apb-ictl: Add PM supportJisheng Zhang1-0/+19
This patch adds in support for S2R for dw-apb-ictl irqchip driver. We can used relaxed variants in the resume hook because there's no DMA at all here, the device type memory attribute can ensure the operations order and relaxed version imply compiler barrier. Signed-off-by: Jisheng Zhang <jszhang@marvell.com> Link: https://lkml.kernel.org/r/1415773374-4629-4-git-send-email-jszhang@marvell.com Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2014-11-26irqchip: dw-apb-ictl: Enable IRQ_GC_MASK_CACHE_PER_TYPEJisheng Zhang1-0/+1
The irq_chip_type instances have separate mask registers, so we need to enable IRQ_GC_MASK_CACHE_PER_TYPE to actually handle separate mask registers. Signed-off-by: Jisheng Zhang <jszhang@marvell.com> Acked-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com> Link: https://lkml.kernel.org/r/1415773374-4629-3-git-send-email-jszhang@marvell.com Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2014-11-26irqchip: dw-apb-ictl: Always use use {readl|writel}_relaxedJisheng Zhang1-6/+6
There's no DMA at all, the device type memory attribute can ensure the operations order and relaxed version imply compiler barrier, so we are safe to use relaxed version to improve the performance a bit. Signed-off-by: Jisheng Zhang <jszhang@marvell.com> Acked-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com> Link: https://lkml.kernel.org/r/1415773374-4629-2-git-send-email-jszhang@marvell.com Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2014-11-26irqchip: gic-v2m: Add support for ARM GICv2m MSI(-X) doorbellSuravee Suthikulpanit4-0/+344
ARM GICv2m specification extends GICv2 to support MSI(-X) with a new register frame. This allows a GICv2 based system to support MSI with minimal changes. Signed-off-by: Suravee Suthikulpanit <Suravee.Suthikulpanit@amd.com> [maz: converted the driver to use stacked irq domains, updated changelog] Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Link: https://lkml.kernel.org/r/1416941243-7181-2-git-send-email-marc.zyngier@arm.com Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2014-11-26irqchip: mtk-sysirq: Add sysirq interrupt polarity supportYingjoe Chen2-0/+164
Mediatek SoCs have interrupt polarity support in sysirq which allows to invert polarity for given interrupt. Add this support using hierarchy irq domain. Signed-off-by: Yingjoe Chen <yingjoe.chen@mediatek.com> Link: https://lkml.kernel.org/r/1416902662-19281-3-git-send-email-yingjoe.chen@mediatek.com Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2014-11-26irqchip: gic: Support hierarchy irq domain.Yingjoe Chen2-24/+54
Add support to use gic as a parent for stacked irq domain. Signed-off-by: Yingjoe Chen <yingjoe.chen@mediatek.com> Acked-by: Marc Zyngier <marc.zyngier@arm.com> Link: https://lkml.kernel.org/r/1416902662-19281-2-git-send-email-yingjoe.chen@mediatek.com Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2014-11-26irqchip: GICv3: ITS: enable compilation of the ITS driverMarc Zyngier2-0/+5
Get the show on the road... Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Link: https://lkml.kernel.org/r/1416839720-18400-13-git-send-email-marc.zyngier@arm.com Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2014-11-26irqchip: GICv3: ITS: plug ITS init into main GICv3 codeMarc Zyngier1-6/+35
As the ITS is always a subsystem if GICv3, its probing/init is driven by the main GICv3 code. Plug that code in (guarded by a config option). Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Link: https://lkml.kernel.org/r/1416839720-18400-12-git-send-email-marc.zyngier@arm.com Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2014-11-26irqchip: GICv3: ITS: DT probing and initializationMarc Zyngier1-0/+169
Add the code that probes the ITS from the device tree, and initialize it. Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Link: https://lkml.kernel.org/r/1416839720-18400-11-git-send-email-marc.zyngier@arm.com Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2014-11-26irqchip: GICv3: ITS: MSI supportMarc Zyngier1-0/+176
Now, the bit of code that allow us to use the ITS as a MSI controller. Both MSI and MSI-X are supported. Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Link: https://lkml.kernel.org/r/1416839720-18400-10-git-send-email-marc.zyngier@arm.com Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2014-11-26irqchip: GICv3: ITS: device allocation and configurationMarc Zyngier1-0/+74
The ITS has a notion of "device" that can write to it in order to generate an interrupt. Conversly, the driver maintains a per-ITS list of devices, together with their configuration information, and uses this to configure the HW. Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Link: https://lkml.kernel.org/r/1416839720-18400-9-git-send-email-marc.zyngier@arm.com Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2014-11-26irqchip: GICv3: ITS: tables allocatorsMarc Zyngier1-0/+292
The interrupt translation is driven by a set of tables (device, ITT, and collection) to be in the end delivered to a CPU. Also, the redistributors rely on a couple of tables (configuration, and pending) to deliver the interrupts to the CPUs. This patch adds the required allocators for these tables. Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Link: https://lkml.kernel.org/r/1416839720-18400-8-git-send-email-marc.zyngier@arm.com Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2014-11-26irqchip: GICv3: ITS: LPI allocatorMarc Zyngier1-0/+103
LPIs are the type of interrupts that are used by the ITS. Given the size of the namespace (anywhere between 16 and 32bit), interrupt IDs are allocated in chunks of 32. Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Link: https://lkml.kernel.org/r/1416839720-18400-7-git-send-email-marc.zyngier@arm.com Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2014-11-26irqchip: GICv3: ITS: irqchip implementationMarc Zyngier1-0/+77
The usual methods that are used to present an irqchip to the rest of the kernel Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Link: https://lkml.kernel.org/r/1416839720-18400-6-git-send-email-marc.zyngier@arm.com Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2014-11-26irqchip: GICv3: ITS command queueMarc Zyngier1-0/+511
The ITS is configured through a number commands that the driver issues to the HW using a memory-based circular buffer. This patch implements the subset of commands that are required for Linux. Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Link: https://lkml.kernel.org/r/1416839720-18400-5-git-send-email-marc.zyngier@arm.com Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2014-11-26irqchip: GICv3: rework redistributor structureMarc Zyngier1-29/+44
The basic GICv3 driver has almost no use for the redistributor (other than the basic per-CPU interrupts), but the ITS needs a lot more from them. As such, rework the set of data structures. The behaviour of the GICv3 driver is otherwise unaffected. Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Link: https://lkml.kernel.org/r/1416839720-18400-4-git-send-email-marc.zyngier@arm.com Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2014-11-26irqchip: GICv3: Convert to domain hierarchyMarc Zyngier2-5/+38
In order to start supporting stacked domains, convert the GICv3 code base to the new domain hierarchy framework, which mostly amounts to supporting the new alloc/free callbacks. Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Link: https://lkml.kernel.org/r/1416839720-18400-3-git-send-email-marc.zyngier@arm.com Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2014-11-26Merge branch 'irqchip/atmel' into irqchip/coreJason Cooper3-5/+49
2014-11-26irqchip: brcmstb-l2: Fix error handling of irq_of_parse_and_mapDmitry Torokhov1-2/+2
Return value of irq_of_parse_and_map() is unsigned int, with 0 indicating failure, so testing for negative result never works. Signed-off-by: Dmitry Torokhov <dtor@chromium.org> Acked-by: Florian Fainelli <f.fainelli@gmail.com> Tested-by: Kevin Cernekee <cernekee@gmail.com> Link: https://lkml.kernel.org/r/20141114221642.GA37468@dtor-ws Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2014-11-26irqchip: bcm7120-l2: Fix error handling of irq_of_parse_and_mapDmitry Torokhov1-2/+2
Return value of irq_of_parse_and_map() is unsigned int, with 0 indicating failure, so testing for negative result never works. Signed-off-by: Dmitry Torokhov <dtor@chromium.org> Acked-by: Florian Fainelli <f.fainelli@gmail.com> Tested-by: Kevin Cernekee <cernekee@gmail.com> Link: https://lkml.kernel.org/r/20141114221614.GA37395@dtor-ws Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2014-11-24irqchip: mips-gic: Add device-tree supportAndrew Bresticker1-5/+87
Add device-tree support for the MIPS GIC. Update the GIC irqdomain's xlate() callback to handle the three-cell specifier described in the MIPS GIC binding document. Signed-off-by: Andrew Bresticker <abrestic@chromium.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Jason Cooper <jason@lakedaemon.net> Cc: Rob Herring <robh+dt@kernel.org> Cc: Pawel Moll <pawel.moll@arm.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Ian Campbell <ijc+devicetree@hellion.org.uk> Cc: Kumar Gala <galak@codeaurora.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Daniel Lezcano <daniel.lezcano@linaro.org> Cc: John Crispin <blogic@openwrt.org> Cc: David Daney <ddaney.cavm@gmail.com> Cc: Qais Yousef <qais.yousef@imgtec.com> Cc: James Hogan <james.hogan@imgtec.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/8422/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-11-24clocksource: mips-gic: Move gic_frequency to clocksource driverAndrew Bresticker1-1/+0
There's no reason for gic_frequency to be global any more and it certainly doesn't belong in the GIC irqchip driver, so move it to the GIC clocksource driver. Signed-off-by: Andrew Bresticker <abrestic@chromium.org> Cc: Daniel Lezcano <daniel.lezcano@linaro.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Jason Cooper <jason@lakedaemon.net> Cc: Paul Burton <paul.burton@imgtec.com> Cc: Qais Yousef <qais.yousef@imgtec.com> Cc: John Crispin <blogic@openwrt.org> Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/8137/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-11-24clocksource: mips-gic: Combine with GIC clockevent driverAndrew Bresticker1-1/+1
Combine the GIC clocksource driver with the GIC clockevent driver from arch/mips/kernel/cevt-gic.c and remove the clockevent driver's separate Kconfig symbol. Signed-off-by: Andrew Bresticker <abrestic@chromium.org> Cc: Daniel Lezcano <daniel.lezcano@linaro.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Jason Cooper <jason@lakedaemon.net> Cc: Andrew Bresticker <abrestic@chromium.org> Cc: Paul Burton <paul.burton@imgtec.com> Cc: Qais Yousef <qais.yousef@imgtec.com> Cc: John Crispin <blogic@openwrt.org> Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/8132/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-11-24MIPS: Move GIC clocksource driver to drivers/clocksource/Andrew Bresticker1-1/+1
Move the GIC clocksource driver to drivers/clocksource/mips-gic-timer.c. Signed-off-by: Andrew Bresticker <abrestic@chromium.org> Cc: Daniel Lezcano <daniel.lezcano@linaro.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Jason Cooper <jason@lakedaemon.net> Cc: Paul Burton <paul.burton@imgtec.com> Cc: Qais Yousef <qais.yousef@imgtec.com> Cc: John Crispin <blogic@openwrt.org> Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/8133/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-11-24irqchip: mips-gic: Use GIC_SH_WEDGE_{SET,CLR} macrosAndrew Bresticker1-2/+2
Use the GIC_SH_WEDGE_{SET,CLR} macros provided by mips-gic.h. Signed-off-by: Andrew Bresticker <abrestic@chromium.org> Cc: Daniel Lezcano <daniel.lezcano@linaro.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Jason Cooper <jason@lakedaemon.net> Cc: Paul Burton <paul.burton@imgtec.com> Cc: Qais Yousef <qais.yousef@imgtec.com> Cc: John Crispin <blogic@openwrt.org> Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/8134/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-11-24irqchip: mips-gic: Remove gic_{pending,itrmask}_regsAndrew Bresticker1-13/+3
There's no reason for the pending and masked interrupt bitmasks to be global. Just declare them on the stack in gic_get_int() since they only consume (256*2)/8 = 64 bytes. Signed-off-by: Andrew Bresticker <abrestic@chromium.org> Cc: Daniel Lezcano <daniel.lezcano@linaro.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Jason Cooper <jason@lakedaemon.net> Cc: Paul Burton <paul.burton@imgtec.com> Cc: Qais Yousef <qais.yousef@imgtec.com> Cc: John Crispin <blogic@openwrt.org> Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/8131/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-11-24irqchip: mips-gic: Clean up #includesAndrew Bresticker1-5/+2
Sort the #includes and remove those which are unnecessary. Signed-off-by: Andrew Bresticker <abrestic@chromium.org> Cc: Daniel Lezcano <daniel.lezcano@linaro.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Jason Cooper <jason@lakedaemon.net> Cc: Paul Burton <paul.burton@imgtec.com> Cc: Qais Yousef <qais.yousef@imgtec.com> Cc: John Crispin <blogic@openwrt.org> Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/8130/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-11-24irqchip: mips-gic: Clean up header fileAndrew Bresticker1-2/+2
Remove duplicate #defines and unnecessary #includes, fix parenthesization, and re-order register definitions in ascending order. Signed-off-by: Andrew Bresticker <abrestic@chromium.org> Cc: Daniel Lezcano <daniel.lezcano@linaro.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Jason Cooper <jason@lakedaemon.net> Cc: Paul Burton <paul.burton@imgtec.com> Cc: Qais Yousef <qais.yousef@imgtec.com> Cc: John Crispin <blogic@openwrt.org> Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/8128/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-11-24MIPS: Move gic.h to include/linux/irqchip/mips-gic.hAndrew Bresticker1-1/+1
Now that the MIPS GIC irqchip lives in drivers/irqchip/, move its header over to include/linux/irqchip/. Signed-off-by: Andrew Bresticker <abrestic@chromium.org> Cc: Daniel Lezcano <daniel.lezcano@linaro.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Jason Cooper <jason@lakedaemon.net> Cc: Paul Burton <paul.burton@imgtec.com> Cc: Qais Yousef <qais.yousef@imgtec.com> Cc: John Crispin <blogic@openwrt.org> Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/8129/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-11-24irqchip: mips-gic: Use proper iomem accessorsAndrew Bresticker1-71/+135
Get rid of the ugly GICREAD/GICWRITE/GICBIS macros and use proper iomem accessors instead. Since the GIC registers are not directly accessed outside of the GIC driver any more, make gic_base static and move all the GIC register manipulation macros out of gic.h, converting them to static inline functions. Signed-off-by: Andrew Bresticker <abrestic@chromium.org> Cc: Daniel Lezcano <daniel.lezcano@linaro.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Jason Cooper <jason@lakedaemon.net> Cc: Paul Burton <paul.burton@imgtec.com> Cc: Qais Yousef <qais.yousef@imgtec.com> Cc: John Crispin <blogic@openwrt.org> Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/8127/ Patchwork: https://patchwork.linux-mips.org/patch/8229/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-11-24irqchip: mips-gic: Export function to read counter widthAndrew Bresticker1-0/+11
Export the function gic_get_count_width to read the width of the GIC global counter from GIC_SH_CONFIG. Update the GIC clocksource driver to use this new function. Signed-off-by: Andrew Bresticker <abrestic@chromium.org> Cc: Daniel Lezcano <daniel.lezcano@linaro.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Jason Cooper <jason@lakedaemon.net> Cc: Paul Burton <paul.burton@imgtec.com> Cc: Qais Yousef <qais.yousef@imgtec.com> Cc: John Crispin <blogic@openwrt.org> Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/8124/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-11-24irqchip: mips-gic: Remove unnecessary globalsAndrew Bresticker1-24/+4
Now that all GIC interrupt routing and handling logic is in the GIC driver itself, un-export variables/functions which are no longer used outside the GIC driver. This also allows us to remove gic_compare_int and combine gic_get_int_mask with gic_get_int since these interfaces are no longer used. Signed-off-by: Andrew Bresticker <abrestic@chromium.org> Acked-by: Jason Cooper <jason@lakedaemon.net> Reviewed-by: Qais Yousef <qais.yousef@imgtec.com> Tested-by: Qais Yousef <qais.yousef@imgtec.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Jeffrey Deans <jeffrey.deans@imgtec.com> Cc: Markos Chandras <markos.chandras@imgtec.com> Cc: Paul Burton <paul.burton@imgtec.com> Cc: Jonas Gorski <jogo@openwrt.org> Cc: John Crispin <blogic@openwrt.org> Cc: David Daney <ddaney.cavm@gmail.com> Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/7820/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-11-24irqchip: mips-gic: Support local interruptsAndrew Bresticker1-68/+223
The MIPS GIC supports 7 local interrupts, 2 of which are the GIC local watchdog and count/compare timer. The remainder are CPU interrupts which may optionally be re-routed through the GIC. GIC hardware IRQs 0-6 are now used for local interrupts while hardware IRQs 7+ are used for external (shared) interrupts. Note that the 5 CPU interrupts may not be re-routable through the GIC. In that case mapping will fail and the vectors reported in C0_IntCtl should be used instead. gic_get_c0_compare_int() and gic_get_c0_perfcount_int() will return the correct IRQ number to use for the C0 timer and perfcounter interrupts based on the routability of those interrupts through the GIC. A separate irq_chip, with callbacks that mask/unmask the local interrupt on all CPUs, is used for the C0 timer and performance counter interrupts since all other platforms do not use the percpu IRQ API for those interrupts. Malta, SEAD-3, and the GIC clockevent driver have been updated to use local interrupts and the R4K clockevent driver has been updated to poll for C0 timer interrupts through the GIC when the GIC is present. Signed-off-by: Andrew Bresticker <abrestic@chromium.org> Acked-by: Jason Cooper <jason@lakedaemon.net> Reviewed-by: Qais Yousef <qais.yousef@imgtec.com> Tested-by: Qais Yousef <qais.yousef@imgtec.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Jeffrey Deans <jeffrey.deans@imgtec.com> Cc: Markos Chandras <markos.chandras@imgtec.com> Cc: Paul Burton <paul.burton@imgtec.com> Cc: Jonas Gorski <jogo@openwrt.org> Cc: John Crispin <blogic@openwrt.org> Cc: David Daney <ddaney.cavm@gmail.com> Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/7819/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-11-24irqchip: mips-gic: Use separate edge/level irq_chipsAndrew Bresticker1-11/+21
GIC edge-triggered interrupts must be acknowledged by clearing the edge detector via a write to GIC_SH_WEDGE. Create a separate edge-triggered irq_chip with the appropriate irq_ack() callback. This also allows us to get rid of gic_irq_flags. Signed-off-by: Andrew Bresticker <abrestic@chromium.org> Acked-by: Jason Cooper <jason@lakedaemon.net> Reviewed-by: Qais Yousef <qais.yousef@imgtec.com> Tested-by: Qais Yousef <qais.yousef@imgtec.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Jeffrey Deans <jeffrey.deans@imgtec.com> Cc: Markos Chandras <markos.chandras@imgtec.com> Cc: Paul Burton <paul.burton@imgtec.com> Cc: Jonas Gorski <jogo@openwrt.org> Cc: John Crispin <blogic@openwrt.org> Cc: David Daney <ddaney.cavm@gmail.com> Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/7818/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-11-24irqchip: mips-gic: Probe for number of external interruptsAndrew Bresticker1-20/+20
Instead of requiring platforms to define the correct GIC_NUM_INTRS, use the value reported in GIC_SH_CONFIG. Signed-off-by: Andrew Bresticker <abrestic@chromium.org> Acked-by: Jason Cooper <jason@lakedaemon.net> Reviewed-by: Qais Yousef <qais.yousef@imgtec.com> Tested-by: Qais Yousef <qais.yousef@imgtec.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Jeffrey Deans <jeffrey.deans@imgtec.com> Cc: Markos Chandras <markos.chandras@imgtec.com> Cc: Paul Burton <paul.burton@imgtec.com> Cc: Jonas Gorski <jogo@openwrt.org> Cc: John Crispin <blogic@openwrt.org> Cc: David Daney <ddaney.cavm@gmail.com> Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/7817/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-11-24irqchip: mips-gic: Stop using per-platform mapping tablesAndrew Bresticker1-96/+105
Now that the GIC properly uses IRQ domains, kill off the per-platform routing tables that were used to make the GIC appear transparent. This includes: - removing the mapping tables and the support for applying them, - moving GIC IPI support to the GIC driver, - properly routing the i8259 through the GIC on Malta, and - updating IRQ assignments on SEAD-3 when the GIC is present. Platforms no longer will pass an interrupt mapping table to gic_init. Instead, they will pass the CPU interrupt vector (2 - 7) that they expect the GIC to route interrupts to. Note that in EIC mode this value is ignored and all GIC interrupts are routed to EIC vector 1. Signed-off-by: Andrew Bresticker <abrestic@chromium.org> Acked-by: Jason Cooper <jason@lakedaemon.net> Reviewed-by: Qais Yousef <qais.yousef@imgtec.com> Tested-by: Qais Yousef <qais.yousef@imgtec.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Jeffrey Deans <jeffrey.deans@imgtec.com> Cc: Markos Chandras <markos.chandras@imgtec.com> Cc: Paul Burton <paul.burton@imgtec.com> Cc: Jonas Gorski <jogo@openwrt.org> Cc: John Crispin <blogic@openwrt.org> Cc: David Daney <ddaney.cavm@gmail.com> Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/7816/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-11-24irqchip: mips-gic: Use IRQ domainsAndrew Bresticker1-8/+40
Use a simple IRQ domain for the MIPS GIC. Remove the gic_platform_init callback as it's no longer necessary for it to set the irqchip. Signed-off-by: Andrew Bresticker <abrestic@chromium.org> Acked-by: Jason Cooper <jason@lakedaemon.net> Reviewed-by: Qais Yousef <qais.yousef@imgtec.com> Tested-by: Qais Yousef <qais.yousef@imgtec.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Jeffrey Deans <jeffrey.deans@imgtec.com> Cc: Markos Chandras <markos.chandras@imgtec.com> Cc: Paul Burton <paul.burton@imgtec.com> Cc: Jonas Gorski <jogo@openwrt.org> Cc: John Crispin <blogic@openwrt.org> Cc: David Daney <ddaney.cavm@gmail.com> Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/7811/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-11-24irqchip: mips-gic: Fix gic_set_affinity() return valueAndrew Bresticker1-1/+1
If the online CPU check in gic_set_affinity() fails, return a proper errno value instead of -1. Signed-off-by: Andrew Bresticker <abrestic@chromium.org> Acked-by: Jason Cooper <jason@lakedaemon.net> Reviewed-by: Qais Yousef <qais.yousef@imgtec.com> Tested-by: Qais Yousef <qais.yousef@imgtec.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Jeffrey Deans <jeffrey.deans@imgtec.com> Cc: Markos Chandras <markos.chandras@imgtec.com> Cc: Paul Burton <paul.burton@imgtec.com> Cc: Jonas Gorski <jogo@openwrt.org> Cc: John Crispin <blogic@openwrt.org> Cc: David Daney <ddaney.cavm@gmail.com> Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/7814/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-11-24irqchip: mips-gic: Implement irq_set_type callbackAndrew Bresticker1-2/+55
Implement an irq_set_type callback for the GIC which is used to set the polarity and trigger type of GIC interrupts. Signed-off-by: Andrew Bresticker <abrestic@chromium.org> Acked-by: Jason Cooper <jason@lakedaemon.net> Reviewed-by: Qais Yousef <qais.yousef@imgtec.com> Tested-by: Qais Yousef <qais.yousef@imgtec.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Jeffrey Deans <jeffrey.deans@imgtec.com> Cc: Markos Chandras <markos.chandras@imgtec.com> Cc: Paul Burton <paul.burton@imgtec.com> Cc: Jonas Gorski <jogo@openwrt.org> Cc: John Crispin <blogic@openwrt.org> Cc: David Daney <ddaney.cavm@gmail.com> Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/7810/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>