From: Ilkka Koskinen <ilkka@os.amperecomputing.com>
To: lorenzo.pieralisi@arm.com, guohanjun@huawei.com,
sudeep.holla@arm.com, linux@armlinux.org.uk
Cc: rafael@kernel.org, lenb@kernel.org, robert.moore@intel.com,
linux-acpi@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, devel@acpica.org,
patches@amperecomputing.com, scott@os.amperecomputing.com,
darren@os.amperecomputing.com
Subject: [PATCH v2 0/2] ACPI: Arm Generic Diagnostic Dump and Reset device
Date: Mon, 13 Dec 2021 20:40:34 -0800 [thread overview]
Message-ID: <20211214044036.48245-1-ilkka@os.amperecomputing.com> (raw)
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
next reply other threads:[~2021-12-14 4:41 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-12-14 4:40 Ilkka Koskinen [this message]
2021-12-14 4:40 ` [PATCH v2 1/2] ACPI: AGDI: Add AGDI tables to drivers/acpi Ilkka Koskinen
2021-12-15 12:17 ` Rafael J. Wysocki
2021-12-16 6:02 ` Ilkka Koskinen
2021-12-14 4:40 ` [PATCH v2 2/2] ACPI: AGDI: Add driver for Arm Generic Diagnostic Dump and Reset device Ilkka Koskinen
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