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Marc Zyngier a7be240d17 irqchip/gic: Work around broken Renesas integration 
[ Upstream commit b78f26926b17cc289e4f16b63363abe0aa2e8efc ]

Geert reported that the GIC driver locks up on a Renesas system
since 005c34ae4b44f085 ("irqchip/gic: Atomically update affinity")
fixed the driver to use writeb_relaxed() instead of writel_relaxed().

As it turns out, the interconnect used on this system mandates
32bit wide accesses for all MMIO transactions, even if the GIC
architecture specifically mandates for some registers to be byte
accessible. Gahhh...

Work around the issue by crudly detecting the offending system,
and falling back to an inefficient RMW+lock implementation.

Reported-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/CAMuHMdV+Ev47K5NO8XHsanSq5YRMCHn2gWAQyV-q2LpJVy9HiQ@mail.gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-10-09 14:40:57 +02:00
..
alphascale_asm9260-icoll.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
exynos-combiner.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
irq-al-fic.c
irqchip/al-fic: Add support for irq retrigger
2019-09-09 18:11:47 +01:00
irq-alpine-msi.c
irqchip/alpine-msi: Fix freeing of interrupts on allocation error path
2020-12-30 11:53:50 +01:00
irq-armada-370-xp.c
irqchip/armada-370-xp: Configure IPIs as standard interrupts
2020-09-17 16:37:27 +01:00
irq-aspeed-i2c-ic.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
irq-aspeed-scu-ic.c
irqchip: Add Aspeed SCU interrupt controller
2020-01-20 19:10:04 +00:00
irq-aspeed-vic.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157
2019-05-30 11:26:37 -07:00
irq-ath79-cpu.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
irq-ath79-misc.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
irq-ativic32.c
irqchip/ativic32: Constify irq_domain_ops
2020-07-27 08:55:02 +01:00
irq-atmel-aic5.c
irqchip/atmel-aic5: Add support for sam9x60 rtt fixup
2020-06-27 11:55:45 +01:00
irq-atmel-aic-common.c
…
irq-atmel-aic-common.h
…
irq-atmel-aic.c
irqchip/atmel-aic: Fix irq_retrigger callback return value
2020-03-16 15:48:54 +00:00
irq-bcm2835.c
irqchip/bcm2835: Quiesce IRQs left enabled by bootloader
2020-03-16 15:48:54 +00:00
irq-bcm2836.c
irqchip/bcm2836: Fix missing __init annotation
2020-10-25 11:10:29 +00:00
irq-bcm6345-l1.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
irq-bcm7038-l1.c
irqchip/irq-bcm7038-l1: Guard uses of cpu_logical_map
2020-07-27 08:55:03 +01:00
irq-bcm7120-l2.c
irqchip/bcm7120-l2: Set controller as wake-up source
2020-07-17 13:41:42 +01:00
irq-brcmstb-l2.c
irqchip/brcmstb-l2: Match UPG_AUX_AON_INTR2 compatible
2020-07-17 13:41:42 +01:00
irq-clps711x.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
irq-crossbar.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
irq-csky-apb-intc.c
irqchip/csky: fixup handle_irq_perbit break irq
2019-01-09 00:18:46 +08:00
irq-csky-mpintc.c
Merge branch 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2019-07-08 11:01:13 -07:00
irq-davinci-aintc.c
irqchip: davinci-aintc: move the driver to drivers/irqchip
2019-02-19 20:02:17 +05:30
irq-davinci-cp-intc.c
irqchip: davinci-cp-intc: move the driver to drivers/irqchip
2019-02-19 20:03:42 +05:30
irq-digicolor.c
…
irq-dw-apb-ictl.c
irqchip/dw-apb-ictl: Add primary interrupt controller support
2020-09-25 16:49:14 +01:00
irq-eznps.c
…
irq-ftintc010.c
…
irq-gic-common.c
irqchip/gic-common: Don't enable SGIs by default
2020-09-17 16:37:27 +01:00
irq-gic-common.h
irqchip/gic: Prepare for more than 16 PPIs
2019-08-20 10:23:34 +01:00
irq-gic-pm.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 234
2019-06-19 17:09:07 +02:00
irq-gic-realview.c
…
irq-gic-v2m.c
PCI: Remove unused includes and superfluous struct declaration
2019-11-21 07:49:29 -06:00
irq-gic-v3-its-fsl-mc-msi.c
bus: fsl-mc: Add ACPI support for fsl-mc
2020-07-28 15:51:32 +01:00
irq-gic-v3-its-pci-msi.c
PCI: Remove unused includes and superfluous struct declaration
2019-11-21 07:49:29 -06:00
irq-gic-v3-its-platform-msi.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 234
2019-06-19 17:09:07 +02:00
irq-gic-v3-its.c
irqchip/gic-v3-its: Fix potential VPE leak on error
2021-09-30 10:11:05 +02:00
irq-gic-v3-mbi.c
irqchip/gic-v3: Fix OF_BAD_ADDR error handling
2021-05-14 09:50:15 +02:00
irq-gic-v3.c
irqchip/gic-v3: Fix priority comparison when non-secure priorities are used
2021-09-15 09:50:29 +02:00
irq-gic-v4.c
irqchip/gic-v4.1: Add VSGI property setup
2020-03-24 12:15:51 +00:00
irq-gic.c
irqchip/gic: Work around broken Renesas integration
2021-10-09 14:40:57 +02:00
irq-goldfish-pic.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
irq-hip04.c
irqchip/hip04: Configure IPIs as standard interrupts
2020-09-17 16:37:27 +01:00
irq-i8259.c
irqchip: Replace setup_irq() by request_irq()
2020-03-08 14:25:46 +00:00
irq-imgpdc.c
irqchip: Remove dev_err() usage after platform_get_irq()
2019-08-20 10:35:55 +01:00
irq-imx-gpcv2.c
treewide: Use fallthrough pseudo-keyword
2020-08-23 17:36:59 -05:00
irq-imx-intmux.c
irqchip/imx-intmux: Use dev_err_probe() to simplify error handling
2020-09-13 17:38:52 +01:00
irq-imx-irqsteer.c
irqchip/imx-irqsteer: Use dev_err_probe() to simplify error handling
2020-09-13 17:38:52 +01:00
irq-ingenic-tcu.c
irqchip/ingenic: Add support for the JZ4760
2021-03-30 14:31:50 +02:00
irq-ingenic.c
irqchip/ingenic: Add support for the JZ4760
2021-03-30 14:31:50 +02:00
irq-ixp4xx.c
irqchip/ixp4xx: Register the base PA instead of its VA in fwnode
2019-08-07 14:24:41 +01:00
irq-jcore-aic.c
…
irq-keystone.c
irqchip: Remove dev_err() usage after platform_get_irq()
2019-08-20 10:35:55 +01:00
irq-loongson-htpic.c
irqchip/loongson-htpic: Remove redundant kfree operation
2020-07-17 13:41:42 +01:00
irq-loongson-htvec.c
irqchip/loongson-htvec: Fix initial interrupt clearing
2020-09-13 15:30:11 +01:00
irq-loongson-liointc.c
irqchip/loongson-liointc: Fix misuse of gc->mask_cache
2020-07-30 12:57:51 +01:00
irq-loongson-pch-msi.c
irqchip/loongson-pch-msi: Use bitmap_zalloc() to allocate bitmap
2021-03-04 11:38:42 +01:00
irq-loongson-pch-pic.c
irqchip/loongson-pch-pic: Improve edge triggered interrupt support
2021-09-15 09:50:29 +02:00
irq-lpc32xx.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 159
2019-05-30 11:26:37 -07:00
irq-ls1x.c
irqchip/irq-ls1x: Missing error code in ls1x_intc_of_init()
2019-04-05 14:37:56 +02:00
irq-ls-extirq.c
irqchip: Add support for Layerscape external interrupt lines
2019-11-10 18:47:49 +00:00
irq-ls-scfg-msi.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
irq-madera.c
irqchip/madera: Drop GPIO includes
2019-01-17 17:04:24 +00:00
irq-mbigen.c
irqchip/mbigen: Free msi_desc on device teardown
2020-04-17 08:59:27 +01:00
irq-meson-gpio.c
irqchip/meson-gpio: Fix HARDIRQ-safe -> HARDIRQ-unsafe lock order
2020-04-17 08:59:29 +01:00
irq-mips-cpu.c
irqchip/mips-cpu: Set IPI domain parent chip
2021-01-27 11:55:13 +01:00
irq-mips-gic.c
treewide: Use fallthrough pseudo-keyword
2020-08-23 17:36:59 -05:00
irq-mmp.c
irqchip/mmp: Coexist with GIC root IRQ controller
2019-08-30 15:23:30 +01:00
irq-mscc-ocelot.c
irqchhip: Convert to using %pOFn instead of device_node.name
2018-12-13 09:35:56 +00:00
irq-mst-intc.c
irqchip/mst: Make mst_intc_of_init static
2020-10-15 22:32:31 +01:00
irq-mtk-cirq.c
irqchip: Revert modular support for drivers using IRQCHIP_PLATFORM_DRIVER helperse
2020-08-25 10:48:54 +01:00
irq-mtk-sysirq.c
irqchip: Revert modular support for drivers using IRQCHIP_PLATFORM_DRIVER helperse
2020-08-25 10:48:54 +01:00
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: Make legacy_bindings static
2020-04-17 08:59:29 +01:00
irq-mvebu-odmi.c
…
irq-mvebu-pic.c
…
irq-mvebu-sei.c
irqchip/irq-mvebu-sei: Make mvebu_sei_ap806_caps static
2019-03-21 16:43:00 +01:00
irq-mxs.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 1
2019-05-21 11:28:39 +02:00
irq-nvic.c
irqchip/nvic: Use irq_domain_translate_onecell instead of custom func
2020-01-20 09:24:47 +00:00
irq-omap-intc.c
…
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
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
irq-orion.c
irqchip: Convert to using %pOFn instead of device_node.name
2018-11-27 10:54:17 -06:00
irq-owl-sirq.c
irqchip: Add Actions Semi Owl SIRQ controller
2020-09-25 16:57:33 +01:00
irq-partition-percpu.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 234
2019-06-19 17:09:07 +02:00
irq-pic32-evic.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
irq-pruss-intc.c
irqchip/irq-pruss-intc: Add support for ICSSG INTC on K3 SoCs
2020-09-17 12:20:32 +01:00
irq-rda-intc.c
irqchip/irq-rda-intc: Fix return value check in rda8810_intc_init()
2018-12-18 12:55:23 +00:00
irq-renesas-h8s.c
genirq: Fix various typos in comments
2018-12-18 14:22:28 +01:00
irq-renesas-h8300h.c
…
irq-renesas-intc-irqpin.c
irqchip/renesas-intc-irqpin: Merge irlm_bit and needs_irlm
2020-11-01 11:59:22 +00:00
irq-renesas-irqc.c
irqchip/renesas-irqc: Use proper irq_chip name and parent
2019-06-11 12:22:42 +01:00
irq-renesas-rza1.c
irqchip/renesas-rza1: Fix an use-after-free in rza1_irqc_probe()
2019-07-26 14:40:01 +01:00
irq-riscv-intc.c
irqchip/riscv-intc: Fix a typo in a pr_warn()
2020-06-21 15:15:41 +01:00
irq-sa11x0.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
irq-sifive-plic.c
irqchip/sifive-plic: Fix chip_data access within a hierarchy
2020-11-01 11:52:27 +00:00
irq-sirfsoc.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 4
2019-05-21 11:28:40 +02:00
irq-sl28cpld.c
irqchip: Add sl28cpld interrupt controller support
2020-09-17 15:58:37 +01:00
irq-sni-exiu.c
irqchip/exiu: Fix the index of fwspec for IRQ type
2020-11-22 10:27:23 +00:00
irq-st.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
irq-stm32-exti.c
irqchip/stm32-exti: Add all LP timer exti direct events support
2020-10-25 12:04:13 +00:00
irq-sun4i.c
irqchip/sun4i: Add support for Allwinner ARMv5 F1C100s
2018-12-13 09:35:58 +00:00
irq-sunxi-nmi.c
…
irq-tango.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
irq-tb10x.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 333
2019-06-05 17:37:06 +02:00
irq-tegra.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 282
2019-06-05 17:36:37 +02:00
irq-ti-sci-inta.c
irqchip/ti-sci-inta: Fix printing of inta id on probe success
2020-12-30 11:53:50 +01:00
irq-ti-sci-intr.c
irqchip/ti-sci-intr: Fix freeing of irqs
2020-12-30 11:53:50 +01:00
irq-ts4800.c
…
irq-uniphier-aidet.c
irqchip/uniphier-aidet: Use devm_platform_ioremap_resource()
2019-09-05 09:28:13 +01:00
irq-versatile-fpga.c
irqchip/versatile-fpga: Apply clear-mask earlier
2020-03-22 11:52:16 +00:00
irq-vf610-mscm-ir.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
irq-vic.c
treewide: Use fallthrough pseudo-keyword
2020-08-23 17:36:59 -05:00
irq-vt8500.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156
2019-05-30 11:26:35 -07:00
irq-xilinx-intc.c
Revert "irqchip/xilinx: Enable generic irq multi handler"
2020-04-01 09:12:24 +01:00
irq-xtensa-mx.c
drivers/irqchip: xtensa-mx: fix mask and unmask
2019-01-26 02:02:15 -08:00
irq-xtensa-pic.c
drivers/irqchip: xtensa: add warning to irq_retrigger
2019-01-26 02:02:14 -08:00
irq-zevio.c
irqchip: Remove redundant semicolon after while
2019-11-10 18:47:44 +00:00
irqchip.c
treewide: Convert macro and uses of __section(foo) to __section("foo")
2020-10-25 14:51:49 -07:00
Kconfig
irqchip/goldfish-pic: Select GENERIC_IRQ_CHIP to fix build
2021-09-30 10:11:04 +02:00
Makefile
ARM: SoC platform updates
2020-10-24 10:33:08 -07:00
qcom-irq-combiner.c
irqchip/qcom-irq-combiner: Replace zero-length array with flexible-array member
2020-03-22 11:52:52 +00:00
qcom-pdc.c
irqchip/qcom-pdc: Fix phantom irq when changing between rising/falling
2020-12-30 11:53:51 +01:00
spear-shirq.c
…