The newly added nps irqchip driver causes build warnings on ARM64.
include/soc/nps/common.h: In function 'nps_host_reg_non_cl':
include/soc/nps/common.h:148:9: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
As the driver is only used on ARC, we don't need to see it without
COMPILE_TEST elsewhere, and we can avoid the warnings by only building
on 32-bit architectures even with CONFIG_COMPILE_TEST.
Acked-by: Marc Zyngier <narc.zyngier@arm.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
- Support for EZChip (now Mellanox) NPS-400 Network processor based on ARC700
http://www.mellanox.com/related-docs/prod_npu/PB_NPS-400.pdf
- NPS interrupt controller and clocksource drivers
- ARC timers probed off DT
- ARC iqrchips switching to linear domain (upgrade from legacy domains)
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=pnAx
-----END PGP SIGNATURE-----
Merge tag 'arc-4.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc
Pull ARC updates from Vineet Gupta:
"We have a relatively big changeset for ARC for 4.7.
The highlight is support for EZChip (now Mellanox) NPS-400 network
processor, a 400-Gb throughput C-programmable packet processor based
on ARC700 cores from Synopsys. See
http://www.mellanox.com/related-docs/prod_npu/PB_NPS-400.pdf
Also present are irqchip and clocksource drivers for NPS as agreed
with respective maintainers to go via ARC tree due to an soc header
dependency. I have the needed ACKs from Jason, Marc, Daniel. You
might run into a trivial merge conflict in drivers/irqchip/*
This EZChip platform support required some deep changes in ARC
architecture code and also opportunity to cleanup past sins (legacy
irq domains, missing irq domain lookup, hard coded timer irqs...)
Summary:
- Support for EZChip (now Mellanox) NPS-400 Network processor based
on ARC700
- NPS interrupt controller and clocksource drivers
- ARC timers probed off DT
- ARC iqrchips switching to linear domain (upgrade from legacy
domains)"
* tag 'arc-4.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc: (37 commits)
arc: axs103_smp: Fix CPU frequency to 100MHz for dual-core
arc: axs10x: Add DT bindings for I2S PLL Clock
ARC: pae: STRICT_MM_TYPECHECKS was broken
ARC: Add eznps platform to Kconfig and Makefile
ARC: [plat-eznps] Use dedicated COMMAND_LINE_SIZE
ARC: [plat-eznps] Use dedicated cpu_relax()
ARC: [plat-eznps] Use dedicated identity auxiliary register.
ARC: [plat-eznps] Use dedicated SMP barriers
ARC: [plat-eznps] Use dedicated atomic/bitops/cmpxchg
ARC: [plat-eznps] Use dedicated user stack top
ARC: [plat-eznps] Add eznps platform
ARC: [plat-eznps] Add eznps board defconfig and dts
ARC: Mark secondary cpu online only after all HW setup is done
ARC: rwlock: disable interrupts in !LLSC variant
ARC: Make vmalloc size configurable
ARC: clean out UAPI byteorder.h clean off Kconfig symbol
irqchip: add nps Internal and external irqchips
clocksource: Add NPS400 timers driver
soc: Support for EZchip SoC
Documentation: Add EZchip vendor to binding list
...
Adding EZchip NPS400 support.
Internal interrupts are handled by Multi Thread Manager (MTM)
Once interrupt is serviced MTM is acked for deactivating the interrupt.
External interrupts are handled by MTM as well as at Global Interrupt
Controller (GIC) e.g. serial and network devices.
Signed-off-by: Noam Camus <noamc@ezchip.com>
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Acked-by: Vineet Gupta <vgupta@synopsys.com>
Acked-by: Jason Cooper <jason@lakedaemon.net>
Cc: Thomas Gleixner <tglx@linutronix.de>
Some kind of Freescale Layerscape SoC provides a MSI
implementation which uses two SCFG registers MSIIR and
MSIR to support 32 MSI interrupts for each PCIe controller.
The patch is to support it.
Signed-off-by: Minghuan Lian <Minghuan.Lian@nxp.com>
Tested-by: Alexander Stein <alexander.stein@systec-electronic.com>
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Plug the partitioning layer into the GICv3 PPI code, parsing the
DT and building the partition affinities and providing the generic
code with partition data and callbacks.
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: devicetree@vger.kernel.org
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Rob Herring <robh+dt@kernel.org>
Link: http://lkml.kernel.org/r/1460365075-7316-5-git-send-email-marc.zyngier@arm.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
We've unfortunately started seeing a situation where percpu interrupts
are partitioned in the system: one arbitrary set of CPUs has an
interrupt connected to a type of device, while another disjoint
set of CPUs has the same interrupt connected to another type of device.
This makes it impossible to have a device driver requesting this interrupt
using the current percpu-interrupt abstraction, as the same interrupt number
is now potentially claimed by at least two drivers, and we forbid interrupt
sharing on per-cpu interrupt.
A solution to this is to turn things upside down. Let's assume that our
system describes all the possible partitions for a given interrupt, and
give each of them a unique identifier. It is then possible to create
a namespace where the affinity identifier itself is a form of interrupt
number. At this point, it becomes easy to implement a set of partitions
as a cascaded irqchip, each affinity identifier being the HW irq.
This allows us to keep a number of nice properties:
- Each partition results in a separate percpu-interrupt (with a restrictied
affinity), which keeps drivers happy.
- Because the underlying interrupt is still per-cpu, the overhead of
the indirection can be kept pretty minimal.
- The core code can ignore most of that crap.
For that purpose, we implement a small library that deals with some of
the boilerplate code, relying on platform-specific drivers to provide
a description of the affinity sets and a set of callbacks.
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: devicetree@vger.kernel.org
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Rob Herring <robh+dt@kernel.org>
Link: http://lkml.kernel.org/r/1460365075-7316-4-git-send-email-marc.zyngier@arm.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This patch adds the Alpine MSIX interrupt controller driver.
Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com>
Signed-off-by: Tsahee Zidenberg <tsahee@annapurnalabs.com>
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
This commit does several things to avoid breaking bisectability.
1- Remove IPI init code from irqchip/mips-gic
2- Implement the new irqchip->send_ipi() in irqchip/mips-gic
3- Select GENERIC_IRQ_IPI Kconfig symbol for MIPS_GIC
4- Change MIPS SMP to use the generic IPI implementation
Only the SMP variants that use GIC were converted as it's the only irqchip that
will have the support for generic IPI for now.
Signed-off-by: Qais Yousef <qais.yousef@imgtec.com>
Acked-by: Ralf Baechle <ralf@linux-mips.org>
Cc: <jason@lakedaemon.net>
Cc: <marc.zyngier@arm.com>
Cc: <jiang.liu@linux.intel.com>
Cc: <linux-mips@linux-mips.org>
Cc: <lisa.parratt@imgtec.com>
Cc: Qais Yousef <qsyousef@gmail.com>
Link: http://lkml.kernel.org/r/1449580830-23652-18-git-send-email-qais.yousef@imgtec.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Add a new ipi domain on top of the normal domain.
MIPS GIC now supports dynamic allocation of an IPI.
Signed-off-by: Qais Yousef <qais.yousef@imgtec.com>
Acked-by: Ralf Baechle <ralf@linux-mips.org>
Cc: <jason@lakedaemon.net>
Cc: <marc.zyngier@arm.com>
Cc: <jiang.liu@linux.intel.com>
Cc: <linux-mips@linux-mips.org>
Cc: <lisa.parratt@imgtec.com>
Cc: Qais Yousef <qsyousef@gmail.com>
Link: http://lkml.kernel.org/r/1449580830-23652-13-git-send-email-qais.yousef@imgtec.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
- mvebu:
- Add odmi driver for Marvell 7K/8K SoCs
- Replace driver-specific set_affinity with generic version
- mips:
- Move ath79 MISC and CPU drivers from arch/ code to irqchip/
- tango:
- Add support for Sigma Designs SMP8[67]xx ctrl
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2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=4dMI
-----END PGP SIGNATURE-----
Merge tag 'irqchip-core-4.6-2' of git://git.infradead.org/users/jcooper/linux into irq/core
Pull the second round of irqchip core changes for v4.6 from Jason Cooper:
- mvebu:
- Add odmi driver for Marvell 7K/8K SoCs
- Replace driver-specific set_affinity with generic version
- mips:
- Move ath79 MISC and CPU drivers from arch/ code to irqchip/
- tango:
- Add support for Sigma Designs SMP8[67]xx ctrl
- mvebu (armada-370-xp)
- MSI support
- Deconflict with mvebu's arm64 code
- ts4800
- Restrict when ts4800 driver can be built
- Make ts4800_ic_ops static const
- bcm2836: Drop superfluous memory barrier
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2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=Omn0
-----END PGP SIGNATURE-----
Merge tag 'irqchip-core-4.6' of git://git.infradead.org/users/jcooper/linux into irq/core
Pull irqchip core changes for v4.6 from Jason Cooper:
- mvebu (armada-370-xp)
- MSI support
- Deconflict with mvebu's arm64 code
- ts4800
- Restrict when ts4800 driver can be built
- Make ts4800_ic_ops static const
- bcm2836: Drop superfluous memory barrier
This commits adds a new irqchip driver that handles the ODMI
controller found on Marvell 7K/8K processors. The ODMI controller
provide MSI interrupt functionality to on-board peripherals, much like
the GIC-v2m.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Reviewed-by: Marc Zyngier <marc.zyngier@arm.com>
Link: https://lkml.kernel.org/r/1455888883-5127-1-git-send-email-thomas.petazzoni@free-electrons.com
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
The Technologic Systems TS-4800 is an i.MX515 board, so its drivers
are useless unless building a SOC_IMX51 kernel, except for build
testing purposes.
Signed-off-by: Jean Delvare <jdelvare@suse.de>
Cc: Damien Riegel <damien.riegel@savoirfairelinux.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Link: https://lkml.kernel.org/r/20160209111920.1ec318bd@endymion
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
This adds support for the secondary interrupt controller used in Sigma
Designs SMP86xx and SMP87xx chips.
Signed-off-by: Mans Rullgard <mans@mansr.com>
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Link: https://lkml.kernel.org/r/1453313237-18570-2-git-send-email-mans@mansr.com
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
The irq-armada-370-xp driver can only be built for ARM 32 bits. The mvebu
family had grown with a new ARM64 SoC which will also select the
ARCH_MEVBU configuration. Since "ARM: mvebu: use the ARMADA_370_XP_IRQ
option", the ARM32 mvebu SoC directly select this new option. Selecting
it by default when ARCH_MEVBU is selected is no more needed.
This patch removes this dependency, thanks to this, a kernel for ARM64
mvebu SoC can be built without error due this driver.
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Link: https://lkml.kernel.org/r/1454951660-13289-3-git-send-email-gregory.clement@free-electrons.com
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
This commit moves the irq-armada-370-xp driver from using the
PCI-specific MSI infrastructure to the generic MSI infrastructure, to
which drivers are progressively converted.
In this hardware, the MSI controller is directly bundled inside the
interrupt controller, so we have a single Device Tree node to which
multiple IRQ domaines are attached: the wired interrupt domain and the
MSI interrupt domain. In order to ensure that they can be
differentiated, we have to force the bus_token of the wired interrupt
domain to be DOMAIN_BUS_WIRED. The MSI domain bus_token is
automatically set to the appropriate value by
pci_msi_create_irq_domain().
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Suggested-by: Marc Zyngier <marc.zyngier@arm.com>
Reviewed-by: Marc Zyngier <marc.zyngier@arm.com>
Link: https://lkml.kernel.org/r/1455115621-22846-3-git-send-email-thomas.petazzoni@free-electrons.com
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
Instead of building the irq-armada-370-xp driver directly when
CONFIG_ARCH_MVEBU is enabled, this commit introduces an intermediate
CONFIG_ARMADA_370_XP_IRQ hidden Kconfig option.
This allows this option to select other interrupt-related Kconfig
options (which will be needed in follow-up commits) rather than having
such selects done from arch/arm/mach-<foo>/.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Acked-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Link: https://lkml.kernel.org/r/1455115621-22846-2-git-send-email-thomas.petazzoni@free-electrons.com
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
Add the BCM6345 interrupt controller based on the SMP-capable BCM7038
and the BCM3380 but with packed interrupt registers.
Add the BCM6345 interrupt controller to a list with the existing BCM7038
so that interrupts on CPU1 are not ignored.
Update the maintainers file list for BMIPS to include this driver.
Signed-off-by: Simon Arlott <simon@fire.lp0.eu>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: devicetree@vger.kernel.org
Cc: Ian Campbell <ijc+devicetree@hellion.org.uk>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Pawel Moll <pawel.moll@arm.com>
Cc: linux-mips@linux-mips.org
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: Kevin Cernekee <cernekee@gmail.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Jonas Gorski <jogo@openwrt.org>
Cc: Kumar Gala <galak@codeaurora.org>
Cc: Rob Herring <robh@kernel.org>
Link: http://lkml.kernel.org/r/5651D176.6030908@simon.arlott.org.uk
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Pull IRQ fixes from Ingo Molnar:
"Mostly irqchip driver fixes, but also an irq core crash fix and a
build fix"
* 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
irqchip/mxs: Add missing set_handle_irq()
irqchip/atmel-aic: Fix wrong bit operation for IRQ priority
irqchip/gic-v3-its: Recompute the number of pages on page size change
base: Export platform_msi_domain_[alloc,free]_irqs
of: MSI: Simplify irqdomain lookup
irqdomain: Allow domain lookup with DOMAIN_BUS_WIRED token
irqchip: Fix dependencies for archs w/o HAS_IOMEM
irqchip/s3c24xx: Mark init_eint as __maybe_unused
genirq: Validate action before dereferencing it in handle_irq_event_percpu()
Pull MIPS updates from Ralf Baechle:
"This is the main pull request for MIPS for 4.5 plus some 4.4 fixes.
The executive summary:
- ATH79 platform improvments, use DT bindings for the ATH79 USB PHY.
- Avoid useless rebuilds for zboot.
- jz4780: Add NEMC, BCH and NAND device tree nodes
- Initial support for the MicroChip's DT platform. As all the device
drivers are missing this is still of limited use.
- Some Loongson3 cleanups.
- The unavoidable whitespace polishing.
- Reduce clock skew when synchronizing the CPU cycle counters on CPU
startup.
- Add MIPS R6 fixes.
- Lots of cleanups across arch/mips as fallout from KVM.
- Lots of minor fixes and changes for IEEE 754-2008 support to the
FPU emulator / fp-assist software.
- Minor Ralink, BCM47xx and bcm963xx platform support improvments.
- Support SMP on BCM63168"
* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (84 commits)
MIPS: zboot: Add support for serial debug using the PROM
MIPS: zboot: Avoid useless rebuilds
MIPS: BMIPS: Enable ARCH_WANT_OPTIONAL_GPIOLIB
MIPS: bcm63xx: nvram: Remove unused bcm63xx_nvram_get_psi_size() function
MIPS: bcm963xx: Update bcm_tag field image_sequence
MIPS: bcm963xx: Move extended flash address to bcm_tag header file
MIPS: bcm963xx: Move Broadcom BCM963xx image tag data structure
MIPS: bcm63xx: nvram: Use nvram structure definition from header file
MIPS: bcm963xx: Add Broadcom BCM963xx board nvram data structure
MAINTAINERS: Add KVM for MIPS entry
MIPS: KVM: Add missing newline to kvm_err()
MIPS: Move KVM specific opcodes into asm/inst.h
MIPS: KVM: Use cacheops.h definitions
MIPS: Break down cacheops.h definitions
MIPS: Use EXCCODE_ constants with set_except_vector()
MIPS: Update trap codes
MIPS: Move Cause.ExcCode trap codes to mipsregs.h
MIPS: KVM: Make kvm_mips_{init,exit}() static
MIPS: KVM: Refactor added offsetof()s
MIPS: KVM: Convert EXPORT_SYMBOL to _GPL
...
This adds support for the interrupt controller present on PIC32 class
devices. It handles all internal and external interrupts. This controller
exists outside of the CPU core and is the arbitrator of all interrupts
(including interrupts from the CPU itself) before they are presented to
the CPU.
The following features are supported:
- DT properties for EVIC and for devices/peripherals that use interrupt lines
- Persistent and non-persistent interrupt handling
- irqdomain and generic chip support
- Configuration of external interrupt edge polarity
Signed-off-by: Cristian Birsan <cristian.birsan@microchip.com>
Signed-off-by: Joshua Henderson <joshua.henderson@microchip.com>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: linux-kernel@vger.kernel.org
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/12092/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit adds support for the TS-4800 interrupt controller. This
controller is instantiated in a companion FPGA, and multiplex interrupts
for other FPGA IPs.
As this component is external to the SoC, the SoC might need to reserve
pins, so this controller is implemented as a platform driver and doesn't
use the IRQCHIP_DECLARE construct.
Signed-off-by: Damien Riegel <damien.riegel@savoirfairelinux.com>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Marc Zyngier <marc.zyngier@arm.com>
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: kernel@savoirfairelinux.com
Link: http://lkml.kernel.org/r/1450728683-31416-2-git-send-email-damien.riegel@savoirfairelinux.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Pull the GIC related updates from Marc Zyngier:
"Not a lot this time (what a relief!), but an interesting series from
Linus Walleij coming out of his work converting the ARM RealView
platforms to DT, and a couple of mundane fixes."
Mbigen means Message Based Interrupt Generator(MBIGEN).
Its a kind of interrupt controller that collects
the interrupts from external devices and generate msi interrupt.
Mbigen is applied to reduce the number of wire connected interrupts.
As the peripherals increasing, the interrupts lines needed is
increasing much, especially on the Arm64 server SOC.
Therefore, the interrupt pin in GIC is not enough to cover so
many peripherals.
Mbigen is designed to fix this problem.
Mbigen chip locates in ITS or outside of ITS.
Mbigen chip hardware structure shows as below:
mbigen chip
|---------------------|-------------------|
mgn_node0 mgn_node1 mgn_node2
| |-------| |-------|------|
dev1 dev1 dev2 dev1 dev3 dev4
Each mbigen chip contains several mbigen nodes.
External devices can connect to mbigen node through wire connecting way.
Because a mbigen node only can support 128 interrupt maximum, depends
on the interrupt lines number of devices, a device can connects to one
more mbigen nodes.
Also, several different devices can connect to a same mbigen node.
When devices triggered interrupt,mbigen chip detects and collects
the interrupts and generates the MBI interrupts by writing the ITS
Translator register.
To simplify mbigen driver,I used a new conception--mbigen device.
Each mbigen device is initialized as a platform device.
Mbigen device presents the parts(register, pin definition etc.) in
mbigen chip corresponding to a peripheral device.
So from software view, the structure likes below
mbigen chip
|---------------------|-----------------|
mbigen device1 mbigen device2 mbigen device3
| | |
dev1 dev2 dev3
Reviewed-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Ma Jun <majun258@huawei.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
There is currently a hack in the GIC driver making it possible
to pass the number of GIC instances from the platform-specific
include files and thus override the variable MAX_GIC_NR.
With multiplatform deployments, this will not work as we need
to get rid of the platform-specific include files.
It turns out that this feature is only used by the RealView
platform which has a cascaded GIC. So move the configuration
to Kconfig and bump to 2 instances if we're building for the
RealView. The include file hacks can then be removed.
Tested on the ARM PB11MPCore with its cascaded GIC.
Suggested-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Freescale iMX23/iMX28 and Alphascale ASM9260 have similar interrupt
collectors. We already prepared the mxs driver to handle a different
register layout. Add the actual ASM9260 support.
Differences between these devices:
- Different register offsets
- Different count of interupt lines per register
- ASM9260 does not provide reset bit
- ASM9260 does not support FIQ.
Signed-off-by: Oleksij Rempel <linux@rempel-privat.de>
Tested-by: Shawn Guo <shawnguo@kernel.org>
Cc: Sascha Hauer <kernel@pengutronix.de>
Cc: marc.zyngier@arm.com
Cc: jason@lakedaemon.net
Link: http://lkml.kernel.org/r/1444677334-12242-6-git-send-email-linux@rempel-privat.de
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
IMX7D contains a new version of GPC IP block (GPCv2). It has two major
functions: power management and wakeup source management.
When the system is in WFI (wait for interrupt) mode, the GPC block
will be the first block on the platform to be activated and signaled.
In normal wait mode during cpu idle, the system can be woken up by any
enabled interrupts. In standby or suspend mode, the system can only be
wokem up by the pre-defined wakeup sources.
Based-on-patch-by: Anson Huang <b20788@freescale.com>
Signed-off-by: Shenwei Wang <shenwei.wang@freescale.com>
Cc: <linux-arm-kernel@lists.infradead.org>
Cc: <shawn.guo@linaro.org>
Cc: <jason@lakedaemon.net>
Link: http://lkml.kernel.org/r/1440443055-7291-1-git-send-email-shenwei.wang@freescale.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Pull MIPS updates from Ralf Baechle:
- Improvements to the tlb_dump code
- KVM fixes
- Add support for appended DTB
- Minor improvements to the R12000 support
- Minor improvements to the R12000 support
- Various platform improvments for BCM47xx
- The usual pile of minor cleanups
- A number of BPF fixes and improvments
- Some improvments to the support for R3000 and DECstations
- Some improvments to the ATH79 platform support
- A major patchset for the JZ4740 SOC adding support for the CI20 platform
- Add support for the Pistachio SOC
- Minor BMIPS/BCM63xx platform support improvments.
- Avoid "SYNC 0" as memory barrier when unlocking spinlocks
- Add support for the XWR-1750 board.
- Paul's __cpuinit/__cpuinitdata cleanups.
- New Malta CPU board support large memory so enable ZONE_DMA32.
* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (131 commits)
MIPS: spinlock: Adjust arch_spin_lock back-off time
MIPS: asmmacro: Ensure 64-bit FP registers are used with MSA
MIPS: BCM47xx: Simplify handling SPROM revisions
MIPS: Cobalt Don't use module_init in non-modular MTD registration.
MIPS: BCM47xx: Move NVRAM driver to the drivers/firmware/
MIPS: use for_each_sg()
MIPS: BCM47xx: Don't select BCMA_HOST_PCI
MIPS: BCM47xx: Add helper variable for storing NVRAM length
MIPS: IRQ/IP27: Move IRQ allocation API to platform code.
MIPS: Replace smp_mb with release barrier function in unlocks.
MIPS: i8259: DT support
MIPS: Malta: Basic DT plumbing
MIPS: include errno.h for ENODEV in mips-cm.h
MIPS: Define GCR_GIC_STATUS register fields
MIPS: BPF: Introduce BPF ASM helpers
MIPS: BPF: Use BPF register names to describe the ABI
MIPS: BPF: Move register definition to the BPF header
MIPS: net: BPF: Replace RSIZE with SZREG
MIPS: BPF: Free up some callee-saved registers
MIPS: Xtalk: Update xwidget.h with known Xtalk device numbers
...
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=fE8E
-----END PGP SIGNATURE-----
Merge tag 'for-4.2' of git://git.sourceforge.jp/gitroot/uclinux-h8/linux
Pull Renesas H8/300 architecture re-introduction from Yoshinori Sato.
We dropped arch/h8300 two years ago as stale and old, this is a new and
more modern rewritten arch support for the same architecture.
* tag 'for-4.2' of git://git.sourceforge.jp/gitroot/uclinux-h8/linux: (27 commits)
h8300: fix typo.
h8300: Always build dtb
h8300: Remove ARCH_WANT_IPC_PARSE_VERSION
sh-sci: Get register size from platform device
clk: h8300: fix error handling in h8s2678_pll_clk_setup()
h8300: Symbol name fix
h8300: devicetree source
h8300: configs
h8300: IRQ chip driver
h8300: clocksource
h8300: clock driver
h8300: Build scripts
h8300: library functions
h8300: Memory management
h8300: miscellaneous functions
h8300: process helpers
h8300: compressed image support
h8300: Low level entry
h8300: kernel startup
h8300: Interrupt and exceptions
...
Move the driver for Ingenic SoC interrupt controllers into
drivers/irqchip where it belongs.
Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Cc: Lars-Peter Clausen <lars@metafoo.de>
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: Brian Norris <computersforpeace@gmail.com>
Patchwork: https://patchwork.linux-mips.org/patch/10147/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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
...
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>
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>
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
...
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
...
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>
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>
Move GIC irqchip support to drivers/irqchip/ and rename the Kconfig
option from IRQ_GIC to MIPS_GIC to avoid confusion with the ARM GIC.
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/7812/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Some chips, such as BCM6328, only require bcm7120-l2. Some BCM7xxx STB
configurations only require brcmstb-l2. Treat them as two separate
entities, and update the mach-bcm dependencies to reflect the change.
Signed-off-by: Kevin Cernekee <cernekee@gmail.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Link: https://lkml.kernel.org/r/1415342669-30640-13-git-send-email-cernekee@gmail.com
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
Arnd Bergmann