Unverified Commit 64f89dfa authored by Hitomi Hasegawa's avatar Hitomi Hasegawa Committed by Arnd Bergmann
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soc: fujitsu: Add A64FX diagnostic interrupt driver 



Register the NMI/IRQ corresponding to the A64FX's device definition
dedicated to diagnostic interrupts, so that when this interrupt is
sent using the BMC, it causes a panic. This can be used to obtain
a kernel dump.

Signed-off-by: default avatarHitomi Hasegawa <hasegawa-hitomi@fujitsu.com>
Link: https://lore.kernel.org/r/20220520074119.3574753-2-hasegawa-hitomi@fujitsu.com

'
Signed-off-by: default avatarArnd Bergmann <arnd@arndb.de>
parent 3c37074f

MAINTAINERS

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@@ -242,6 +242,11 @@ F: include/trace/events/9p.h 
F:	include/uapi/linux/virtio_9p.h

F:	net/9p/









A64FX DIAG DRIVER









M:	Hitomi Hasegawa <hasegawa-hitomi@fujitsu.com>









S:	Supported









F:	drivers/soc/fujitsu/a64fx-diag.c

















A8293 MEDIA DRIVER









M:	Antti Palosaari <crope@iki.fi>









L:	linux-media@vger.kernel.org
































drivers/soc/Kconfig



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@@ -9,6 +9,7 @@ source "drivers/soc/atmel/Kconfig"







source "drivers/soc/bcm/Kconfig"









source "drivers/soc/canaan/Kconfig"









source "drivers/soc/fsl/Kconfig"









source "drivers/soc/fujitsu/Kconfig"









source "drivers/soc/imx/Kconfig"









source "drivers/soc/ixp4xx/Kconfig"









source "drivers/soc/litex/Kconfig"
































drivers/soc/Makefile



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@@ -12,6 +12,7 @@ obj-$(CONFIG_SOC_CANAAN)	+= canaan/







obj-$(CONFIG_ARCH_DOVE)		+= dove/









obj-$(CONFIG_MACH_DOVE)		+= dove/









obj-y				+= fsl/









obj-y				+= fujitsu/









obj-$(CONFIG_ARCH_GEMINI)	+= gemini/









obj-y				+= imx/









obj-y				+= ixp4xx/
































drivers/soc/fujitsu/Kconfig
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# SPDX-License-Identifier: GPL-2.0-only









menu "fujitsu SoC drivers"



















config A64FX_DIAG









	tristate "A64FX diag driver"









	depends on ARM64









	depends on ACPI









	help









	  Say Y here if you want to enable diag interrupt on Fujitsu A64FX.









	  This driver enables BMC's diagnostic requests and enables









	  A64FX-specific interrupts. This allows administrators to obtain









	  kernel dumps via diagnostic requests using ipmitool, etc.



















	  If unsure, say N.



















endmenu
























drivers/soc/fujitsu/Makefile
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# SPDX-License-Identifier: GPL-2.0



















obj-$(CONFIG_A64FX_DIAG)	+= a64fx-diag.o