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linux/drivers/irqchip
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Marc Zyngier 82f499c881 irqchip/gic-v3-its: Fix reprogramming of redistributors on CPU hotplug 
Enabling LPIs was made a lot stricter recently, by checking that they are
disabled before enabling them. By doing so, the CPU hotplug case was missed
altogether, which leaves LPIs enabled on hotplug off (expecting the CPU to
eventually come back), and won't write a different value anyway on hotplug
on.

So skip that check if that particular case is detected

Fixes: 6eb486b66a ("irqchip/gic-v3: Ensure GICR_CTLR.EnableLPI=0 is observed before enabling")
Reported-by: Sumit Garg <sumit.garg@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Sumit Garg <sumit.garg@linaro.org>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Alexandre Belloni <alexandre.belloni@bootlin.com>
Cc: Yang Yingliang <yangyingliang@huawei.com>
Link: https://lkml.kernel.org/r/20180622095254.5906-8-marc.zyngier@arm.com
2018-06-22 14:22:02 +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 irqchip/ath79-misc: Move the MISC driver from arch/mips/ath79/ 2016-02-17 13:44:31 +00:00
irq-ativic32.c irqchip: Andestech Internal Vector Interrupt Controller driver 2018-02-22 10:44:36 +08:00
irq-atmel-aic5.c irqchip/atmel-aic: Remove root argument from ->fixup() prototype 2017-07-04 11:10:37 +01:00
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-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/bcm: Remove hashed address printing 2018-02-16 14:22:16 +00:00
irq-bcm7120-l2.c irqchip/bcm: Remove hashed address printing 2018-02-16 14:22:16 +00:00
irq-brcmstb-l2.c irqchip/bcm: Remove hashed address printing 2018-02-16 14:22:16 +00:00
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 Merge 4.16-rc3 into staging-next 2018-02-26 15:32:00 +01:00
irq-gic-v3-its-pci-msi.c irqchip/gic-v3: Ignore disabled ITS nodes 2018-02-16 13:47:58 +00:00
irq-gic-v3-its-platform-msi.c irqchip/gic-v3: Ignore disabled ITS nodes 2018-02-16 13:47:58 +00:00
irq-gic-v3-its.c irqchip/gic-v3-its: Fix reprogramming of redistributors on CPU hotplug 2018-06-22 14:22:02 +02:00
irq-gic-v3-mbi.c irqchip/gic-v3: Add PCI/MSI support to the GICv3 MBI sub-driver 2018-05-13 15:59:01 +02:00
irq-gic-v3.c treewide: kzalloc() -> kcalloc() 2018-06-12 16:19:22 -07:00
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: Update supports_deactivate static key to modern api 2018-03-28 15:24:15 +01:00
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: Remove unused function 2018-03-11 13:27:12 +00:00
irq-ingenic.c
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/irq-mbigen: Constify irq_domain_ops 2017-06-22 14:13:00 +01:00
irq-meson-gpio.c irqchip/meson-gpio: Add support for Meson-AXG SoCs 2018-05-24 12:34:18 +01:00
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: Avoid spuriously handling masked interrupts 2018-02-16 13:47:58 +00:00
irq-mmp.c irqchip/mmp: Make mmp_intc_conf const 2017-08-31 15:31:43 +01:00
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: Convert to using %pOF instead of full_name 2017-08-23 10:09:28 +01:00
irq-mvebu-gicp.c treewide: devm_kzalloc() -> devm_kcalloc() 2018-06-12 16:19:22 -07:00
irq-mvebu-icu.c irqchip/mvebu-gicp: Use level-triggered MSIs between ICU and GICP 2018-05-13 15:59:00 +02:00
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 irqchip: Convert all alloc/xlate users from of_node to fwnode 2015-10-13 19:01:23 +02:00
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 genirq: Remove irq argument from irq flow handlers 2015-09-16 15:47:51 +02:00
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 License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
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 treewide: kzalloc() -> kcalloc() 2018-06-12 16:19:22 -07:00
irq-sa11x0.c ARM: kill off set_irq_flags usage 2015-07-28 13:58:13 +02:00
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: Fix non-SMP build warning 2018-06-06 12:05:19 +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: Use irq_gc_mask_disable_and_ack_set 2017-10-13 16:31:05 +01:00
irq-tb10x.c genirq: Remove irq argument from irq flow handlers 2015-09-16 15:47:51 +02:00
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 License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
irq-vf610-mscm-ir.c irqchip: Convert all alloc/xlate users from of_node to fwnode 2015-10-13 19:01:23 +02:00
irq-vic.c irqchip/vic: Improve function-level documentation 2016-10-05 11:53:35 +02:00
irq-vt8500.c irqchip: Kill off set_irq_flags usage 2015-09-16 16:53:38 +02:00
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 irqchip/xtensa-mx: Report that effective affinity is a single target 2017-08-18 10:54:43 +02:00
irq-xtensa-pic.c xtensa: don't use linux IRQ #0 2017-06-05 16:53:10 -07:00
irq-zevio.c irqchip/zevio: Use irq_data_get_chip_type() helper 2015-12-30 18:29:02 +01:00
irqchip.c irqchip / GIC: Convert the GIC driver to ACPI probing 2015-10-01 02:18:38 +02:00
Kconfig Staging/IIO patches for 4.17-rc1 2018-04-04 18:56:27 -07:00
Makefile irqchip/gic-v3: Add support for Message Based Interrupts as an MSI controller 2018-05-13 15:59:01 +02:00
qcom-irq-combiner.c irqchip/qcom: Fix check for spurious interrupts 2018-05-02 15:56:10 +02:00
qcom-pdc.c irqchip/pdc: Add PDC interrupt controller for QCOM SoCs 2018-03-14 11:11:27 +00:00
spear-shirq.c remove lots of IS_ERR_VALUE abuses 2016-05-27 15:26:11 -07:00