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kernel-fxtec-pro1x/drivers/irqchip
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Thomas Gleixner 5c4d9eefd3 genirq/affinity: Make affinity setting if activated opt-in 
commit f0c7baca180046824e07fc5f1326e83a8fd150c7 upstream.

John reported that on a RK3288 system the perf per CPU interrupts are all
affine to CPU0 and provided the analysis:

 "It looks like what happens is that because the interrupts are not per-CPU
  in the hardware, armpmu_request_irq() calls irq_force_affinity() while
  the interrupt is deactivated and then request_irq() with IRQF_PERCPU |
  IRQF_NOBALANCING.

  Now when irq_startup() runs with IRQ_STARTUP_NORMAL, it calls
  irq_setup_affinity() which returns early because IRQF_PERCPU and
  IRQF_NOBALANCING are set, leaving the interrupt on its original CPU."

This was broken by the recent commit which blocked interrupt affinity
setting in hardware before activation of the interrupt. While this works in
general, it does not work for this particular case. As contrary to the
initial analysis not all interrupt chip drivers implement an activate
callback, the safe cure is to make the deferred interrupt affinity setting
at activation time opt-in.

Implement the necessary core logic and make the two irqchip implementations
for which this is required opt-in. In hindsight this would have been the
right thing to do, but ...

Fixes: baedb87d1b53 ("genirq/affinity: Handle affinity setting on inactive interrupts correctly")
Reported-by: John Keeping <john@metanate.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Marc Zyngier <maz@kernel.org>
Acked-by: Marc Zyngier <maz@kernel.org>
Cc: stable@vger.kernel.org
Link: https://lkml.kernel.org/r/87blk4tzgm.fsf@nanos.tec.linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-08-21 11:05:28 +02:00
..
alphascale_asm9260-icoll.h irqchip/mxs: Add Alphascale ASM9260 support 2015-10-14 09:37:47 +02:00
exynos-combiner.c irqchip/exynos-combiner: Fix usage of __raw IO 2016-06-23 18:26:42 +00:00
irq-alpine-msi.c treewide: kzalloc() -> kcalloc() 2018-06-12 16:19:22 -07:00
irq-armada-370-xp.c irqchip updates for 4.14 2017-08-31 20:12:51 +02:00
irq-aspeed-i2c-ic.c irqchip/aspeed-i2c-ic: Fix return value check in aspeed_i2c_ic_of_init() 2017-10-19 11:22:43 +01:00
irq-aspeed-vic.c irqchip/aspeed-vic: Add AST2500 compatible string 2017-06-22 14:13:39 +01:00
irq-ath79-cpu.c irqchip/ath79-cpu: Move the CPU IRQ driver from arch/mips/ath79/ 2016-02-17 13:47:19 +00:00
irq-ath79-misc.c Revert "MIPS: perf: ath79: Fix perfcount IRQ assignment" 2019-06-11 12:20:53 +02:00
irq-ativic32.c irqchip: Andestech Internal Vector Interrupt Controller driver 2018-02-22 10:44:36 +08:00
irq-atmel-aic-common.c irqchip/atmel-aic: Remove root argument from ->fixup() prototype 2017-07-04 11:10:37 +01:00
irq-atmel-aic-common.h irqchip/atmel-aic: Remove root argument from ->fixup() prototype 2017-07-04 11:10:37 +01:00
irq-atmel-aic.c irqchip/atmel-aic: Remove root argument from ->fixup() prototype 2017-07-04 11:10:37 +01:00
irq-atmel-aic5.c irqchip/atmel-aic: Remove root argument from ->fixup() prototype 2017-07-04 11:10:37 +01:00
irq-bcm2835.c irqchip: Convert to using %pOF instead of full_name 2017-08-23 10:09:28 +01:00
irq-bcm2836.c irqchip/irq-bcm2836: Add support for DT interrupt polarity 2018-01-04 11:12:39 +00:00
irq-bcm6345-l1.c irqchip/bcm-6345-l1: Report that effective affinity is a single target 2017-08-18 10:54:41 +02:00
irq-bcm7038-l1.c irqchip/irq-bcm7038-l1: Enable parent IRQ if necessary 2020-01-04 19:12:52 +01:00
irq-bcm7120-l2.c irqchip/bcm: Remove hashed address printing 2018-02-16 14:22:16 +00:00
irq-brcmstb-l2.c irqchip/brcmstb-l2: Use _irqsave locking variants in non-interrupt code 2019-03-23 20:10:01 +01:00
irq-clps711x.c irqchip: clps711x: Changing the compatibility string to match with the smallest supported chip 2016-07-06 17:38:15 +02:00
irq-crossbar.c irqchip: Convert to using %pOF instead of full_name 2017-08-23 10:09:28 +01:00
irq-digicolor.c irqchip: Convert to using %pOF instead of full_name 2017-08-23 10:09:28 +01:00
irq-dw-apb-ictl.c irqchip: Convert to using %pOF instead of full_name 2017-08-23 10:09:28 +01:00
irq-eznps.c irqchip/eznps: Drop pointless static qualifier in nps400_of_init() 2016-10-19 14:24:36 +02:00
irq-ftintc010.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
irq-gic-common.c irqchip/gic: Take lock when updating irq type 2018-03-29 11:47:50 +01:00
irq-gic-common.h irqchip/gic: Make quirks matching conditional on init return value 2017-10-19 11:22:38 +01:00
irq-gic-pm.c irqchip/gic-pm: Update driver to use of_pm_clk_add_clk 2016-09-12 19:46:28 +01:00
irq-gic-realview.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
irq-gic-v2m.c irqchip/gic-v2m: Fix SPI release on error path 2018-06-22 14:22:00 +02:00
irq-gic-v3-its-fsl-mc-msi.c irqchip/gic-v3-its: Move minimum LPI requirements to individual busses 2018-07-16 14:22:19 +01:00
irq-gic-v3-its-pci-msi.c irqchip/gic-v3-its: Reduce minimum LPI allocation to 1 for PCI devices 2018-07-27 10:01:24 +01:00
irq-gic-v3-its-platform-msi.c irqchip/gic-v3-its: Move minimum LPI requirements to individual busses 2018-07-16 14:22:19 +01:00
irq-gic-v3-its.c genirq/affinity: Make affinity setting if activated opt-in 2020-08-21 11:05:28 +02:00
irq-gic-v3-mbi.c irqchip/gic-v3-mbi: Fix uninitialized mbi_lock 2019-03-05 17:58:48 +01:00
irq-gic-v3.c irqchip/gic-v3: Only provision redistributors that are enabled in ACPI 2020-02-24 08:34:52 +01:00
irq-gic-v4.c irqchip/gic-v4: Clear IRQ_DISABLE_UNLAZY again if mapping fails 2017-11-10 09:50:36 +00:00
irq-gic.c irqchip/gic: Atomically update affinity 2020-07-09 09:37:12 +02:00
irq-goldfish-pic.c irqchip/irq-goldfish-pic: Add Goldfish PIC driver 2018-01-04 11:14:04 +00:00
irq-hip04.c irqchip/hip04: Report that effective affinity is a single target 2017-08-18 10:54:42 +02:00
irq-i8259.c irqchip/i8259: Set I/O port resource types correctly 2017-12-18 23:07:46 -06:00
irq-imgpdc.c treewide: devm_kzalloc() -> devm_kcalloc() 2018-06-12 16:19:22 -07:00
irq-imx-gpcv2.c irqchip/irq-imx-gpcv2: Forward irq type to parent 2019-08-25 10:47:53 +02:00
irq-ingenic.c irqchip: ingenic: Error out if IRQ domain creation failed 2020-01-04 19:12:52 +01:00
irq-jcore-aic.c irqchip/jcore: Fix lost per-cpu interrupts 2016-10-14 14:26:55 +02:00
irq-keystone.c irqchip/keystone: Fix "scheduling while atomic" on rt 2016-12-31 18:41:45 +00:00
irq-lpc32xx.c irqchip: Convert to using %pOF instead of full_name 2017-08-23 10:09:28 +01:00
irq-ls-scfg-msi.c irqchip/ls-scfg-msi: Fix MSI affinity handling 2018-06-22 14:22:00 +02:00
irq-mbigen.c irqchip/mbigen: Free msi_desc on device teardown 2020-04-23 10:30:13 +02:00
irq-meson-gpio.c irqchip/meson-gpio: Add support for Meson-G12A SoC 2019-07-26 09:14:06 +02:00
irq-mips-cpu.c MIPS: Unify checks for sibling CPUs 2017-08-30 00:57:27 +02:00
irq-mips-gic.c irqchip/mips-gic: Use the correct local interrupt map registers 2019-07-03 13:14:46 +02:00
irq-mmp.c irqchip/mmp: Only touch the PJ4 IRQ & FIQ bits on enable/disable 2019-03-13 14:02:35 -07:00
irq-mscc-ocelot.c irqchip: Add a driver for the Microsemi Ocelot controller 2018-03-22 15:52:27 +00:00
irq-mtk-cirq.c irqchip: Add Mediatek mtk-cirq driver 2017-04-07 10:52:22 +01:00
irq-mtk-sysirq.c irqchip/irq-mtk-sysirq: Replace spinlock with raw_spinlock 2020-08-19 08:14:52 +02:00
irq-mvebu-gicp.c treewide: devm_kzalloc() -> devm_kcalloc() 2018-06-12 16:19:22 -07:00
irq-mvebu-icu.c irqchip/irq-mvebu-icu: Fix wrong private data retrieval 2019-11-24 08:19:40 +01:00
irq-mvebu-odmi.c irqchip/gic: Return IRQ_SET_MASK_OK_DONE in the set_affinity method 2016-02-19 15:42:29 +00:00
irq-mvebu-pic.c irqchip/mvebu-pic: New driver for Marvell Armada 7K/8K PIC 2016-08-22 22:58:27 +00:00
irq-mxs.c irqchip: Convert to using %pOF instead of full_name 2017-08-23 10:09:28 +01:00
irq-nvic.c
irq-omap-intc.c irqchip/irq-omap-intc: Do not statically initialize variables 2017-10-16 21:05:14 +02:00
irq-ompic.c irqchip/ompic: fix return value check in ompic_of_init() 2018-01-04 11:13:22 +00:00
irq-or1k-pic.c irqchip/or1k-pic: Fix interrupt acknowledgement 2017-06-30 15:33:11 +01:00
irq-orion.c
irq-partition-percpu.c treewide: kzalloc() -> kcalloc() 2018-06-12 16:19:22 -07:00
irq-pic32-evic.c irqchip/irq-pic32-evic: Fix bug with external interrupts. 2016-06-02 18:03:50 +01:00
irq-renesas-h8s.c h8300: irqchip: fix warning 2018-08-22 19:14:19 +09:00
irq-renesas-h8300h.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
irq-renesas-intc-irqpin.c irqchip/renesas-intc-irqpin: Use wakeup_path i.s.o. explicit clock handling 2018-03-14 11:11:15 +00:00
irq-renesas-irqc.c irqchip/renesas-irqc: Use wakeup_path i.s.o. explicit clock handling 2018-03-14 11:11:21 +00:00
irq-s3c24xx.c irqchip/s3c24xx: Remove unneeded comparison of unsigned long to 0 2018-08-13 16:20:17 +01:00
irq-sa11x0.c
irq-sifive-plic.c irqchip: add a SiFive PLIC driver 2018-08-13 08:31:32 -07:00
irq-sirfsoc.c irqchip/sirfsoc: Fix sparse warnings on __iomem 2016-06-13 00:48:31 +00:00
irq-sni-exiu.c irqchip/exiu: Fix return value check in exiu_init() 2017-11-14 11:27:22 +01:00
irq-st.c irqchip/st: Mark st_irq_syscfg_resume() __maybe_unused 2016-12-19 10:55:43 +01:00
irq-stm32-exti.c irqchip/stm32: Don't clear rising/falling config registers at init 2019-04-20 09:15:58 +02:00
irq-sun4i.c irqchip: Convert to using %pOF instead of full_name 2017-08-23 10:09:28 +01:00
irq-sunxi-nmi.c irqchip/sunxi-nmi: Support sun6i-a31-r-intc compatible 2017-06-22 14:08:17 +01:00
irq-tango.c irqchip/tango: Set irq handler and data in one go 2018-08-20 09:54:44 +01:00
irq-tb10x.c
irq-tegra.c irqchip: Convert to using %pOF instead of full_name 2017-08-23 10:09:28 +01:00
irq-ts4800.c irqchip/ts4800: Make ts4800_ic_ops static const 2016-02-18 02:09:18 +00:00
irq-uniphier-aidet.c irqchip: Add UniPhier AIDET irqchip driver 2017-08-23 10:08:44 +01:00
irq-versatile-fpga.c irqchip/versatile-fpga: Apply clear-mask earlier 2020-04-17 10:48:46 +02:00
irq-vf610-mscm-ir.c
irq-vic.c irqchip/vic: Improve function-level documentation 2016-10-05 11:53:35 +02:00
irq-vt8500.c
irq-xilinx-intc.c irqchip: Convert to using %pOF instead of full_name 2017-08-23 10:09:28 +01:00
irq-xtensa-mx.c xtensa: drop variant IRQ support 2018-08-20 12:28:05 -07:00
irq-xtensa-pic.c xtensa: drop variant IRQ support 2018-08-20 12:28:05 -07:00
irq-zevio.c irqchip/zevio: Use irq_data_get_chip_type() helper 2015-12-30 18:29:02 +01:00
irqchip.c
Kconfig irqchip: Place CONFIG_SIFIVE_PLIC into the menu 2020-01-23 08:21:36 +01:00
Makefile irqchip: add a SiFive PLIC driver 2018-08-13 08:31:32 -07:00
qcom-irq-combiner.c irqchip/qcom: Fix check for spurious interrupts 2018-05-02 15:56:10 +02:00
qcom-pdc.c irqchip/pdc: Setup all edge interrupts as rising edge at GIC 2018-11-13 11:08:34 -08:00
spear-shirq.c remove lots of IS_ERR_VALUE abuses 2016-05-27 15:26:11 -07:00