WSL2-Linux-Kernel/drivers/irqchip
Marc Zyngier b78f26926b irqchip/gic: Work around broken Renesas integration
Geert reported that the GIC driver locks up on a Renesas system
since 005c34ae4b ("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
2021-09-22 14:44:25 +01:00
..
Kconfig irqchip/goldfish-pic: Select GENERIC_IRQ_CHIP to fix build 2021-09-22 14:33:09 +01:00
Makefile
alphascale_asm9260-icoll.h
exynos-combiner.c
irq-al-fic.c
irq-alpine-msi.c irqchip/alpine-msi: Switch to bitmap_zalloc() 2021-07-26 18:01:44 +01:00
irq-apple-aic.c irqchip/apple-aic: Fix irq_disable from within irq handlers 2021-08-20 14:32:33 +01:00
irq-armada-370-xp.c irqchip/armada-370-xp: Fix ack/eoi breakage 2021-09-22 14:24:49 +01:00
irq-aspeed-i2c-ic.c
irq-aspeed-scu-ic.c
irq-aspeed-vic.c
irq-ath79-cpu.c
irq-ath79-misc.c
irq-ativic32.c
irq-atmel-aic-common.c
irq-atmel-aic-common.h
irq-atmel-aic.c
irq-atmel-aic5.c
irq-bcm2835.c
irq-bcm2836.c
irq-bcm6345-l1.c
irq-bcm7038-l1.c
irq-bcm7120-l2.c
irq-brcmstb-l2.c
irq-clps711x.c
irq-crossbar.c
irq-csky-apb-intc.c
irq-csky-mpintc.c
irq-davinci-aintc.c
irq-davinci-cp-intc.c
irq-digicolor.c
irq-dw-apb-ictl.c
irq-ftintc010.c
irq-gic-common.c
irq-gic-common.h
irq-gic-pm.c
irq-gic-realview.c
irq-gic-v2m.c irqchip/gic-v2m: Switch to bitmap_zalloc() 2021-07-26 18:01:44 +01:00
irq-gic-v3-its-fsl-mc-msi.c
irq-gic-v3-its-pci-msi.c
irq-gic-v3-its-platform-msi.c
irq-gic-v3-its.c irqchip/gic-v3-its: Fix potential VPE leak on error 2021-09-22 14:37:04 +01:00
irq-gic-v3-mbi.c irqchip/gic-v3: Switch to bitmap_zalloc() 2021-07-26 18:04:01 +01:00
irq-gic-v3.c Merge branch irq/misc-5.15 into irq/irqchip-next 2021-08-20 15:03:40 +01:00
irq-gic-v4.c
irq-gic.c irqchip/gic: Work around broken Renesas integration 2021-09-22 14:44:25 +01:00
irq-goldfish-pic.c
irq-hip04.c
irq-i8259.c
irq-idt3243x.c
irq-imgpdc.c
irq-imx-gpcv2.c
irq-imx-intmux.c
irq-imx-irqsteer.c
irq-ingenic-tcu.c
irq-ingenic.c
irq-ixp4xx.c
irq-jcore-aic.c
irq-keystone.c
irq-loongson-htpic.c
irq-loongson-htvec.c
irq-loongson-liointc.c
irq-loongson-pch-msi.c
irq-loongson-pch-pic.c irqchip/loongson-pch-pic: Improve edge triggered interrupt support 2021-08-12 07:57:23 +01:00
irq-lpc32xx.c
irq-ls-extirq.c
irq-ls-scfg-msi.c irqchip/ls-scfg-msi: Switch to devm_bitmap_zalloc() 2021-07-26 18:04:10 +01:00
irq-ls1x.c
irq-madera.c
irq-mbigen.c irqchip/mbigen: Repair non-kernel-doc notation 2021-09-22 14:32:26 +01:00
irq-meson-gpio.c
irq-mips-cpu.c
irq-mips-gic.c
irq-mmp.c
irq-mscc-ocelot.c
irq-mst-intc.c
irq-mtk-cirq.c
irq-mtk-sysirq.c irqchip/mtk-sysirq: Skip setting irq-wake 2021-08-12 08:15:15 +01:00
irq-mvebu-gicp.c irqchip/mvebu-gicp: Switch to devm_bitmap_zalloc() 2021-07-26 18:04:10 +01:00
irq-mvebu-icu.c
irq-mvebu-odmi.c irqchip/mvebu-odmi: Switch to bitmap_zalloc() 2021-07-26 18:04:11 +01:00
irq-mvebu-pic.c
irq-mvebu-sei.c
irq-mxs.c
irq-nvic.c
irq-omap-intc.c
irq-ompic.c
irq-or1k-pic.c
irq-orion.c
irq-owl-sirq.c
irq-partition-percpu.c irqchip/partitions: Switch to bitmap_zalloc() 2021-07-26 18:01:27 +01:00
irq-pic32-evic.c
irq-pruss-intc.c
irq-rda-intc.c
irq-realtek-rtl.c
irq-renesas-h8s.c
irq-renesas-h8300h.c
irq-renesas-intc-irqpin.c
irq-renesas-irqc.c
irq-renesas-rza1.c irqchip/renesas-rza1: Use semicolons instead of commas 2021-09-22 14:37:59 +01:00
irq-riscv-intc.c
irq-sa11x0.c
irq-sifive-plic.c
irq-sl28cpld.c
irq-sni-exiu.c
irq-st.c
irq-stm32-exti.c
irq-sun4i.c
irq-sun6i-r.c
irq-sunxi-nmi.c
irq-tb10x.c
irq-tegra.c
irq-ti-sci-inta.c
irq-ti-sci-intr.c
irq-ts4800.c
irq-uniphier-aidet.c
irq-versatile-fpga.c
irq-vf610-mscm-ir.c
irq-vic.c
irq-vt8500.c
irq-wpcm450-aic.c
irq-xilinx-intc.c
irq-xtensa-mx.c
irq-xtensa-pic.c
irq-zevio.c
irqchip.c
qcom-irq-combiner.c
qcom-pdc.c irqchip/qcom-pdc: Trim unused levels of the interrupt hierarchy 2021-08-23 09:45:31 +01:00
spear-shirq.c