Arm Generic Diagnostic Dump and Reset device enables a maintainer to request OS to perform a diagnostic dump and reset a system via SDEI event or an interrupt. This patchset adds support for the SDEI path. I do have a patch to enable the interrupt path as well but I'm holding it back since AGDI table is missing interrupt configuration fields (trigger type etc.). The recently published specification is available at https://developer.arm.com/documentation/den0093/latest The patchset was tested on Ampere Altra/Mt. Jade. The patchset applies on top of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm master git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-next/core It seems that the correct order to upstream ACPICA patch first and backport it to kernel. Thus, I'm assuming this patchset should not get merged yet. >From v1: * Moved pdata to the stack and dropped unnecessary kzalloc() in agdi_init() * Changed the ACPICA patch upstreaming order comment in the paragraph above Ilkka Koskinen (2): ACPI: AGDI: Add AGDI tables to drivers/acpi ACPI: AGDI: Add driver for Arm Generic Diagnostic Dump and Reset device drivers/acpi/arm64/Kconfig | 8 +++ drivers/acpi/arm64/Makefile | 1 + drivers/acpi/arm64/agdi.c | 125 ++++++++++++++++++++++++++++++++++++ drivers/acpi/tables.c | 2 +- include/acpi/actbl2.h | 20 ++++++ 5 files changed, 155 insertions(+), 1 deletion(-) create mode 100644 drivers/acpi/arm64/agdi.c -- 2.17.1
