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ba714a9c1d
linux/drivers/pinctrl
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Thomas Gleixner ba714a9c1d pinctrl/amd: Use regular interrupt instead of chained 
The AMD pinctrl driver uses a chained interrupt to demultiplex the GPIO
interrupts. Kevin Vandeventer reported, that his new AMD Ryzen locks up
hard on boot when the AMD pinctrl driver is initialized. The reason is an
interrupt storm. It's not clear whether that's caused by hardware or
firmware or both.

Using chained interrupts on X86 is a dangerous endavour. If a system is
misconfigured or the hardware buggy there is no safety net to catch an
interrupt storm.

Convert the driver to use a regular interrupt for the demultiplex
handler. This allows the interrupt storm detector to catch the malfunction
and lets the system boot up.

This should be backported to stable because it's likely that more users run
into this problem as the AMD Ryzen machines are spreading.

Reported-by: Kevin Vandeventer
Link: https://bugzilla.suse.com/show_bug.cgi?id=1034261
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-06-09 10:51:54 +02:00
..
aspeed pinctrl: aspeed: g5: Add pinconf support 2017-04-24 14:55:50 +02:00
bcm pinctrl: bcm: make use of raw_spinlock variants 2017-03-16 16:39:14 +01:00
berlin Pin control bulk changes for the v4.11 kernel cycle: 2017-02-21 16:34:22 -08:00
freescale pinctrl: mxs: atomically switch mux and drive strength config 2017-05-23 11:27:53 +02:00
intel pinctrl: cherryview: Extend the Chromebook DMI quirk to Intel_Strago systems 2017-05-23 10:08:40 +02:00
mediatek pinctrl: mediatek: Use real dependencies 2017-01-26 16:26:50 +01:00
meson This is the bulk of pin control changes for the v4.12 cycle: 2017-05-02 17:59:33 -07:00
mvebu pinctrl: armada-37xx: Add gpio support 2017-04-24 13:47:29 +02:00
nomadik pinctrl: nomadik: split up and comments MC0 pins 2016-11-18 09:54:32 +01:00
pxa pinctrl: pxa: Use devm_pinctrl_register() for pinctrl registration 2016-04-21 00:03:04 +02:00
qcom This is the bulk of pin control changes for the v4.12 cycle: 2017-05-02 17:59:33 -07:00
samsung This is the bulk of pin control changes for the v4.12 cycle: 2017-05-02 17:59:33 -07:00
sh-pfc This is the bulk of pin control changes for the v4.12 cycle: 2017-05-02 17:59:33 -07:00
sirf pinctrl: sirf: atlas7: make use of raw_spinlock variants 2017-03-16 16:39:15 +01:00
spear pinctrl: spear: make bool drivers explicitly non-modular 2017-02-13 14:25:55 +01:00
stm32 pinctrl: stm32: Add STM32F469 MCU support 2017-04-24 14:26:14 +02:00
sunxi pinctrl: sunxi: Fix SPDIF function name for A83T 2017-05-23 11:31:27 +02:00
tegra pinctrl: tegra: xusb: Silence sparse warnings 2017-04-24 18:35:54 +02:00
ti pinctrl: core: Fix pinctrl_register_and_init() with pinctrl_enable() 2017-04-07 01:08:08 +02:00
uniphier This is the bulk of pin control changes for the v4.12 cycle: 2017-05-02 17:59:33 -07:00
vt8500 pinctrl: Widen the generic pinconf argument from 16 to 24 bits 2017-01-26 15:22:32 +01:00
core.c pinctrl: core: Fix warning by removing bogus code 2017-05-22 17:36:13 +02:00
core.h pinctrl: core: Fix regression caused by delayed work for hogs 2017-01-13 16:25:17 +01:00
devicetree.c pinctrl: core: Make dt_free_map optional 2017-01-09 19:41:07 +01:00
devicetree.h pinctrl: core: Use delayed work for hogs 2017-01-03 09:26:16 +01:00
Kconfig pinctrl: Add pincontrol driver for ARTPEC-6 SoC 2017-04-07 11:48:33 +02:00
Makefile pinctrl: armada-37xx: Add pin controller support for Armada 37xx 2017-04-24 11:31:36 +02:00
pinconf-generic.c Revert "pinctrl: generic: Add bi-directional and output-enable" 2017-05-22 10:39:10 +02:00
pinconf.c pinctrl: Fix spelling typos 2017-03-14 14:42:22 +01:00
pinconf.h pinctrl: Allow configuration of pins from gpiolib based drivers 2017-01-26 15:23:01 +01:00
pinctrl-adi2-bf54x.c
pinctrl-adi2-bf60x.c
pinctrl-adi2.c pinctrl: adi2: Use devm_pinctrl_register() for pinctrl registration 2016-04-21 09:23:20 +02:00
pinctrl-adi2.h
pinctrl-amd.c pinctrl/amd: Use regular interrupt instead of chained 2017-06-09 10:51:54 +02:00
pinctrl-amd.h pinctrl: amd: make use of raw_spinlock variants 2017-03-16 16:39:15 +01:00
pinctrl-artpec6.c pinctrl: artpec6: Fix return value check in artpec6_pmx_probe() 2017-04-28 09:40:52 +02:00
pinctrl-as3722.c pinctrl: as3722: Use devm_pinctrl_register() for pinctrl registration 2016-04-21 09:23:21 +02:00
pinctrl-at91-pio4.c pinctrl: at91-pio4: handle suspend to ram 2017-04-07 14:32:51 +02:00
pinctrl-at91.c pinctrl: at91: add support for OUTPUT config 2016-10-31 09:16:46 +01:00
pinctrl-at91.h
pinctrl-coh901.c pinctrl: coh901: fix initconst annotation 2016-02-15 20:40:52 +01:00
pinctrl-coh901.h
pinctrl-da850-pupd.c Merge branch 'ib-pinctrl-genprops' into devel 2017-01-26 15:27:54 +01:00
pinctrl-digicolor.c Revert "pinctrl: digicolor: add missing platform_set_drvdata() call" 2016-06-23 09:50:05 +02:00
pinctrl-falcon.c pinctrl: update my email address 2016-12-30 09:17:02 +01:00
pinctrl-lantiq.c pinctrl: update my email address 2016-12-30 09:17:02 +01:00
pinctrl-lantiq.h pinctrl: update my email address 2016-12-30 09:17:02 +01:00
pinctrl-lpc18xx.c pinctrl: Widen the generic pinconf argument from 16 to 24 bits 2017-01-26 15:22:32 +01:00
pinctrl-max77620.c pinctrl: Widen the generic pinconf argument from 16 to 24 bits 2017-01-26 15:22:32 +01:00
pinctrl-oxnas.c pinctrl: oxnas: Add support for OX820 2016-10-24 16:30:14 +02:00
pinctrl-palmas.c pinctrl: Widen the generic pinconf argument from 16 to 24 bits 2017-01-26 15:22:32 +01:00
pinctrl-pic32.c pinctrl: pic32: Use devm_pinctrl_register() for pinctrl registration 2016-04-21 09:23:24 +02:00
pinctrl-pic32.h pinctrl: pinctrl-pic32: Add PIC32 pin control driver 2016-02-05 23:54:47 +01:00
pinctrl-pistachio.c pinctrl: pistachio: fix mfio pll_lock pinmux 2016-08-22 15:28:35 +02:00
pinctrl-rockchip.c pinctrl: rockchip: avoid hardirq-unsafe functions in irq_chip 2017-03-28 11:18:50 +02:00
pinctrl-single.c pinctrl: core: Fix pinctrl_register_and_init() with pinctrl_enable() 2017-04-07 01:08:08 +02:00
pinctrl-st.c pinctrl: st: add irq_request/release_resources callbacks 2017-03-23 10:10:39 +01:00
pinctrl-sx150x.c pinctrl / gpio: Introduce .set_config() callback for GPIO chips 2017-01-26 15:27:37 +01:00
pinctrl-tb10x.c pinctrl: tb10x: Use devm_pinctrl_register() for pinctrl registration 2016-04-21 09:23:25 +02:00
pinctrl-tz1090-pdc.c pinctrl: tz1090-pdc: Use devm_pinctrl_register() for pinctrl registration 2016-04-21 09:23:26 +02:00
pinctrl-tz1090.c pinctrl: tz1090 Use devm_pinctrl_register() for pinctrl registration 2016-04-21 09:23:26 +02:00
pinctrl-u300.c pinctrl: u300: make u300_pmx_registers static 2016-06-13 09:27:43 +02:00
pinctrl-utils.c pinctrl: Rename pinctrl_utils_dt_free_map to pinctrl_utils_free_map 2016-04-01 15:06:36 +02:00
pinctrl-utils.h pinctrl: Rename pinctrl_utils_dt_free_map to pinctrl_utils_free_map 2016-04-01 15:06:36 +02:00
pinctrl-xway.c pinctrl: update my email address 2016-12-30 09:17:02 +01:00
pinctrl-zynq.c pinctrl: zynq: Add a 8 bit wide nand option 2016-11-04 15:19:00 +01:00
pinmux.c pinctrl: core: Fix warning by removing bogus code 2017-05-22 17:36:13 +02:00
pinmux.h pinctrl: core: Add generic pinctrl functions for managing groups 2017-01-03 09:26:18 +01:00