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33625282ad
linux/drivers/irqchip
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Marc Zyngier 33625282ad irqchip/gic-v3: Probe for SCR_EL3 being clear before resetting AP0Rn 
We would like to reset the Group-0 Active Priority Registers
at boot time if they are available to us. They would be available
if SCR_EL3.FIQ was not set, but we cannot directly probe this bit,
and short of checking, we may end-up trapping to EL3, and the
firmware may not be please to get such an exception. Yes, this
is dumb.

Instead, let's use PMR to find out if its value gets affected by
SCR_EL3.FIQ being set. We use the fact that when SCR_EL3.FIQ is
set, the LSB of the priority is lost due to the shifting back and
forth of the actual priority. If we read back a 0, we know that
Group0 is unavailable. In case we read a non-zero value, we can
safely reset the AP0Rn register.

Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2018-03-22 13:46:18 +00:00
..
alphascale_asm9260-icoll.h
exynos-combiner.c irqchip/exynos-combiner: Fix usage of __raw IO 2016-06-23 18:26:42 +00:00
irq-alpine-msi.c irqchip/irq-alpine-msi: Don't use <asm-generic/msi.h> 2016-05-11 10:12:25 +01:00
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
irq-ath79-misc.c
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: Make quirks matching conditional on init return value 2017-10-19 11:22:38 +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: Add PCI Multi-MSI support 2018-02-16 13:47:58 +00:00
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: Add ability to resend MAPC on resume 2018-03-14 11:11:30 +00:00
irq-gic-v3.c irqchip/gic-v3: Probe for SCR_EL3 being clear before resetting AP0Rn 2018-03-22 13:46:18 +00:00
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: Loudly complain about the use of IRQ_TYPE_NONE 2018-03-16 14:35:17 +00:00
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 irqchip/imgpdc: Use resource_size function on resource object 2017-11-23 20:09:12 +01:00
irq-imx-gpcv2.c irqchip: Convert to using %pOF instead of full_name 2017-08-23 10:09:28 +01:00
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: Add LS1012a MSI support 2017-10-11 13:48:19 -05:00
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 Meson8 SoCs 2017-11-02 15:55:45 +00:00
irq-metag-ext.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
irq-metag.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +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-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 irqchip/irq-mvebu-gicp: Add missing spin_lock init 2017-11-01 00:35:18 +01:00
irq-mvebu-gicp.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
irq-mvebu-icu.c irqchip/irq-mvebu-icu: Add new driver for Marvell ICU 2017-06-23 09:14:57 +01:00
irq-mvebu-odmi.c
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 irqchip: Add per-cpu interrupt partitioning library 2016-05-02 13:42:51 +02:00
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 irqchip/s3c24xx: pr_err() strings should end with newlines 2017-11-13 14:35:08 +00:00
irq-sa11x0.c
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 copyright 2018-01-29 16:24:53 +01:00
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
irq-tegra.c irqchip: Convert to using %pOF instead of full_name 2017-08-23 10:09:28 +01:00
irq-ts4800.c
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
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 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.c
Kconfig irqchip/pdc: Add PDC interrupt controller for QCOM SoCs 2018-03-14 11:11:27 +00:00
Makefile irqchip/pdc: Add PDC interrupt controller for QCOM SoCs 2018-03-14 11:11:27 +00:00
qcom-irq-combiner.c irqchip/qcom: Fix u32 comparison with value less than zero 2017-11-23 20:03:58 +01:00
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