linux-stable/arch/arm
Linus Torvalds 3d3b44a61a The interrupt departement provides:
- A mechanism to shield isolated tasks from managed interrupts:
 
    The affinity of managed interrupts is completely controlled by the
    kernel and user space has no influence on them. The reason is that
    the automatically assigned affinity correlates to the multi-queue
    CPU handling of block devices.
 
    If the generated affinity mask spaws both housekeeping and isolated CPUs
    the interrupt could be routed to an isolated CPU which would then be
    disturbed by I/O submitted by a housekeeping CPU.
 
    The new mechamism ensures that as long as one housekeeping CPU is online
    in the assigned affinity mask the interrupt is routed to a housekeeping
    CPU.
 
    If there is no online housekeeping CPU in the affinity mask, then the
    interrupt is routed to an isolated CPU to keep the device queue intact,
    but unless the isolated CPU submits I/O by itself these interrupts are
    not raised.
 
  - A small addon to the device tree irqdomain core code to avoid
    duplication in irq chip drivers
 
  - Conversion of the SiFive PLIC to hierarchical domains
 
  - The usual pile of new irq chip drivers: SiFive GPIO, Aspeed SCI, NXP
    INTMUX, Meson A1 GPIO
 
  - The first cut of support for the new ARM GICv4.1
 
  - The usual pile of fixes and improvements in core and driver code
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Merge tag 'irq-core-2020-01-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull irq updates from Thomas Gleixner:
 "The interrupt departement provides:

   - A mechanism to shield isolated tasks from managed interrupts:

     The affinity of managed interrupts is completely controlled by the
     kernel and user space has no influence on them. The reason is that
     the automatically assigned affinity correlates to the multi-queue
     CPU handling of block devices.

     If the generated affinity mask spaws both housekeeping and isolated
     CPUs the interrupt could be routed to an isolated CPU which would
     then be disturbed by I/O submitted by a housekeeping CPU.

     The new mechamism ensures that as long as one housekeeping CPU is
     online in the assigned affinity mask the interrupt is routed to a
     housekeeping CPU.

     If there is no online housekeeping CPU in the affinity mask, then
     the interrupt is routed to an isolated CPU to keep the device queue
     intact, but unless the isolated CPU submits I/O by itself these
     interrupts are not raised.

   - A small addon to the device tree irqdomain core code to avoid
     duplication in irq chip drivers

   - Conversion of the SiFive PLIC to hierarchical domains

   - The usual pile of new irq chip drivers: SiFive GPIO, Aspeed SCI,
     NXP INTMUX, Meson A1 GPIO

   - The first cut of support for the new ARM GICv4.1

   - The usual pile of fixes and improvements in core and driver code"

* tag 'irq-core-2020-01-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (33 commits)
  genirq, sched/isolation: Isolate from handling managed interrupts
  irqchip/gic-v4.1: Allow direct invalidation of VLPIs
  irqchip/gic-v4.1: Suppress per-VLPI doorbell
  irqchip/gic-v4.1: Add VPE INVALL callback
  irqchip/gic-v4.1: Add VPE eviction callback
  irqchip/gic-v4.1: Add VPE residency callback
  irqchip/gic-v4.1: Add mask/unmask doorbell callbacks
  irqchip/gic-v4.1: Plumb skeletal VPE irqchip
  irqchip/gic-v4.1: Implement the v4.1 flavour of VMOVP
  irqchip/gic-v4.1: Don't use the VPE proxy if RVPEID is set
  irqchip/gic-v4.1: Implement the v4.1 flavour of VMAPP
  irqchip/gic-v4.1: VPE table (aka GICR_VPROPBASER) allocation
  irqchip/gic-v3: Add GICv4.1 VPEID size discovery
  irqchip/gic-v3: Detect GICv4.1 supporting RVPEID
  irqchip/gic-v3-its: Fix get_vlpi_map() breakage with doorbells
  irqdomain: Fix a memory leak in irq_domain_push_irq()
  irqchip: Add NXP INTMUX interrupt multiplexer support
  dt-bindings: interrupt-controller: Add binding for NXP INTMUX interrupt multiplexer
  irqchip: Define EXYNOS_IRQ_COMBINER
  irqchip/meson-gpio: Add support for meson a1 SoCs
  ...
2020-01-27 17:22:21 -08:00
..
boot Few minor fixes for omaps 2020-01-24 12:05:33 -08:00
common ARM: scoop: Use the right include 2019-09-03 22:09:46 +02:00
configs Samsung fixes for v5.5 2019-12-16 11:33:14 -08:00
crypto Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2019-12-14 12:32:28 -08:00
include The interrupt departement provides: 2020-01-27 17:22:21 -08:00
kernel ARM fixes for 5.5: 2020-01-25 14:32:51 -08:00
kvm Merge remote-tracking branch 'kvmarm/misc-5.5' into kvmarm/next 2019-11-08 11:27:29 +00:00
lib Merge branch 'misc' into fixes 2019-10-22 17:37:29 +01:00
mach-actions
mach-alpine
mach-artpec
mach-asm9260
mach-aspeed ARM: SoC fixes 2019-09-30 10:04:28 -07:00
mach-at91 ARM: at91: move platform-specific asm-offset.h to arch/arm/mach-at91 2019-08-23 21:50:10 +02:00
mach-axxia
mach-bcm remove ioremap_nocache and devm_ioremap_nocache 2020-01-06 09:45:59 +01:00
mach-berlin
mach-clps711x
mach-cns3xxx
mach-davinci ioremap changes for 5.6 2020-01-27 13:03:00 -08:00
mach-digicolor
mach-dove ARM: orion/mvebu: unify debug-ll virtual addresses 2019-08-14 19:24:58 +02:00
mach-ebsa110
mach-efm32
mach-ep93xx Merge branch 'spi-5.4' into spi-next 2019-09-15 10:32:06 +01:00
mach-exynos irqchip: Define EXYNOS_IRQ_COMBINER 2020-01-20 19:10:05 +00:00
mach-footbridge ARM: 8911/1: move pcibios_report_status to <asm/pci.h> 2019-10-27 21:14:40 +00:00
mach-gemini
mach-highbank ARM: SoC platform updates 2019-07-19 17:05:08 -07:00
mach-hisi ARM: hisi: drop useless depend on ARCH_MULTI_V7 2019-10-26 15:31:22 +08:00
mach-imx ARM: imx: Fix boot crash if ocotp is not found 2019-12-12 10:44:28 +08:00
mach-integrator
mach-iop32x ARM: iop32x: merge everything into mach-iop32x/ 2019-08-14 15:36:22 +02:00
mach-ixp4xx docs: arm: convert docs to ReST and rename to *.rst 2019-07-15 09:20:24 -03:00
mach-keystone ARM: SoC platform updates 2019-07-19 17:05:08 -07:00
mach-lpc18xx
mach-lpc32xx ARM: lpc32xx: allow multiplatform build 2019-08-15 21:34:08 +02:00
mach-mediatek
mach-meson
mach-milbeaut
mach-mmp ARM: mmp: do not divide the clock rate 2020-01-06 09:18:50 -08:00
mach-moxart
mach-mv78xx0 ARM: orion/mvebu: unify debug-ll virtual addresses 2019-08-14 19:24:58 +02:00
mach-mvebu
mach-mxs
mach-nomadik
mach-npcm
mach-nspire ARM: mach-nspire: Kill off CLCD auxdata 2019-08-13 15:48:23 +02:00
mach-omap1 ARM: OMAP1: drop duplicated dependency on ARCH_OMAP1 2019-11-11 12:30:39 -08:00
mach-omap2 ARM: omap2plus: select RESET_CONTROLLER 2020-01-08 10:24:05 -08:00
mach-orion5x ARM: orion/mvebu: unify debug-ll virtual addresses 2019-08-14 19:24:58 +02:00
mach-oxnas
mach-picoxcell
mach-prima2
mach-pxa remove ioremap_nocache and devm_ioremap_nocache 2020-01-06 09:45:59 +01:00
mach-qcom
mach-rda
mach-realview
mach-rockchip
mach-rpc ARM: riscpc: Mark expected switch fall-through 2019-08-20 19:42:48 -05:00
mach-s3c24xx ARM: s3c: Rename s3c64xx_spi_setname() function 2019-10-28 17:46:57 +01:00
mach-s3c64xx ARM: s3c: Rename s5p_usb_phy functions 2019-10-28 17:46:58 +01:00
mach-s5pv210
mach-sa1100 ARM: SoC platform updates 2019-07-19 17:05:08 -07:00
mach-shmobile remove ioremap_nocache and devm_ioremap_nocache 2020-01-06 09:45:59 +01:00
mach-socfpga arm: socfpga: execute cold reboot by default 2019-11-22 12:12:10 -06:00
mach-spear
mach-sti
mach-stm32 ARM: SoC platform updates 2019-07-19 17:05:08 -07:00
mach-sunxi ARM: sunxi: Fix CPU powerdown on A83T 2019-10-29 09:09:56 +01:00
mach-tango
mach-tegra ARM: SoC platform updates 2019-12-05 11:38:40 -08:00
mach-u300
mach-uniphier
mach-ux500 mfd: db8500-prcmu: Support U8420-sysclk firmware 2019-11-11 08:45:04 +00:00
mach-versatile
mach-vexpress ARM: vexpress: Set-up shared OPP table instead of individual for each CPU 2019-12-09 11:52:50 +00:00
mach-vt8500
mach-zx
mach-zynq ARM: zynq: Use memcpy_toio instead of memcpy on smp bring-up 2019-08-14 09:40:43 +02:00
mm ARM: SoC platform updates 2019-12-05 11:38:40 -08:00
net
nwfpe
oprofile
plat-omap ARM: OMAP: dma: Mark expected switch fall-throughs 2019-08-13 04:53:37 -07:00
plat-orion
plat-pxa spi: pxa2xx: No need to keep pointer to platform device 2019-10-18 18:24:50 +01:00
plat-samsung ARM: s3c: Rename s5p_usb_phy functions 2019-10-28 17:46:58 +01:00
plat-versatile
probes
tools docs: arm: convert docs to ReST and rename to *.rst 2019-07-15 09:20:24 -03:00
vdso ARM: vdso: Set BUILD_VDSO32 and provide 32bit fallbacks 2020-01-14 12:20:43 +01:00
vfp
xen dma-mapping updates for 5.5-rc1 2019-11-28 11:16:43 -08:00
Kconfig arm: Implement copy_thread_tls 2020-01-07 13:31:20 +01:00
Kconfig-nommu
Kconfig.debug ARM updates for 5.4-rc1: 2019-09-22 09:39:09 -07:00
Makefile ARM updates for 5.4-rc1: 2019-09-22 09:39:09 -07:00