From: Lorenzo Pieralisi <lorenzo.pieralisi-5wv7dgnIgG8@public.gmane.org>
To: linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org,
devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Cc: Lorenzo Pieralisi
<lorenzo.pieralisi-5wv7dgnIgG8@public.gmane.org>,
Christoffer Dall
<christoffer.dall-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>,
Will Deacon <will.deacon-5wv7dgnIgG8@public.gmane.org>,
Sudeep Holla <sudeep.holla-5wv7dgnIgG8@public.gmane.org>,
Catalin Marinas <catalin.marinas-5wv7dgnIgG8@public.gmane.org>,
Anup Patel <anup.patel-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>,
Mark Rutland <mark.rutland-5wv7dgnIgG8@public.gmane.org>,
Marc Zyngier <marc.zyngier-5wv7dgnIgG8@public.gmane.org>
Subject: [PATCH 0/6] drivers: firmware: psci: add basic v1.0 support
Date: Fri, 29 May 2015 13:16:33 +0100 [thread overview]
Message-ID: <1432901799-18359-1-git-send-email-lorenzo.pieralisi@arm.com> (raw)
The PSCI v1.0 specification[1] introduces a brand new set of features
(ie OS initiated mode and system suspend being the most notable ones)
and provides updates to the PSCI 0.2 specification, keeping backward
compatibility.
PSCI v1.0 applies minor changes to function return codes and function
behaviour (ie AFFINITY_INFO requirements, INVALID_ADDRESS return value)
and introduces a new power_state parameter format (extended stateid)
that is probeable with the newly introduced PSCI_FEATURES call.
This series upgrades the current kernel PSCI layer implementation with
a set of patches that make the kernel PSCI v1.0 compliant.
The series augments the PSCI firmware layer with a hook to retrieve
the features for a specific PSCI function (ie based on the PSCI_FEATURES
call) and uses it to detect the power_state parameter format, updating
the power_state parameter handling functions accordingly.
In order to prevent firmware interfaces mismatch, a new compatible
string is added to the DT bindings to characterize a 1.0 compliant
firmware interface.
The series is built on top of M.Rutland's branch:
git://git.kernel.org/pub/scm/linux/kernel/git/mark/linux.git psci/unification
Tested on a Juno board.
[1] http://infocenter.arm.com/help/topic/com.arm.doc.den0022c/DEN0022C_Power_State_Coordination_Interface.pdf
Lorenzo Pieralisi (6):
ARM: kvm: psci: fix handling of unimplemented functions
drivers: firmware: psci: add INVALID_ADDRESS return value
drivers: firmware: psci: move power_state handling to generic code
drivers: firmware: psci: add PSCI_FEATURES call
drivers: firmware: psci: add extended stateid power_state support
drivers: firmware: psci: add PSCI v1.0 DT bindings
Documentation/devicetree/bindings/arm/psci.txt | 6 +++
arch/arm/kvm/psci.c | 6 +--
arch/arm64/kernel/psci.c | 14 -------
drivers/firmware/psci.c | 53 ++++++++++++++++++++++++++
include/linux/psci.h | 2 +
include/uapi/linux/psci.h | 15 ++++++++
6 files changed, 79 insertions(+), 17 deletions(-)
--
2.2.1
--
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WARNING: multiple messages have this Message-ID (diff)
From: lorenzo.pieralisi@arm.com (Lorenzo Pieralisi)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 0/6] drivers: firmware: psci: add basic v1.0 support
Date: Fri, 29 May 2015 13:16:33 +0100 [thread overview]
Message-ID: <1432901799-18359-1-git-send-email-lorenzo.pieralisi@arm.com> (raw)
The PSCI v1.0 specification[1] introduces a brand new set of features
(ie OS initiated mode and system suspend being the most notable ones)
and provides updates to the PSCI 0.2 specification, keeping backward
compatibility.
PSCI v1.0 applies minor changes to function return codes and function
behaviour (ie AFFINITY_INFO requirements, INVALID_ADDRESS return value)
and introduces a new power_state parameter format (extended stateid)
that is probeable with the newly introduced PSCI_FEATURES call.
This series upgrades the current kernel PSCI layer implementation with
a set of patches that make the kernel PSCI v1.0 compliant.
The series augments the PSCI firmware layer with a hook to retrieve
the features for a specific PSCI function (ie based on the PSCI_FEATURES
call) and uses it to detect the power_state parameter format, updating
the power_state parameter handling functions accordingly.
In order to prevent firmware interfaces mismatch, a new compatible
string is added to the DT bindings to characterize a 1.0 compliant
firmware interface.
The series is built on top of M.Rutland's branch:
git://git.kernel.org/pub/scm/linux/kernel/git/mark/linux.git psci/unification
Tested on a Juno board.
[1] http://infocenter.arm.com/help/topic/com.arm.doc.den0022c/DEN0022C_Power_State_Coordination_Interface.pdf
Lorenzo Pieralisi (6):
ARM: kvm: psci: fix handling of unimplemented functions
drivers: firmware: psci: add INVALID_ADDRESS return value
drivers: firmware: psci: move power_state handling to generic code
drivers: firmware: psci: add PSCI_FEATURES call
drivers: firmware: psci: add extended stateid power_state support
drivers: firmware: psci: add PSCI v1.0 DT bindings
Documentation/devicetree/bindings/arm/psci.txt | 6 +++
arch/arm/kvm/psci.c | 6 +--
arch/arm64/kernel/psci.c | 14 -------
drivers/firmware/psci.c | 53 ++++++++++++++++++++++++++
include/linux/psci.h | 2 +
include/uapi/linux/psci.h | 15 ++++++++
6 files changed, 79 insertions(+), 17 deletions(-)
--
2.2.1
next reply other threads:[~2015-05-29 12:16 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-05-29 12:16 Lorenzo Pieralisi [this message]
2015-05-29 12:16 ` [PATCH 0/6] drivers: firmware: psci: add basic v1.0 support Lorenzo Pieralisi
[not found] ` <1432901799-18359-1-git-send-email-lorenzo.pieralisi-5wv7dgnIgG8@public.gmane.org>
2015-05-29 12:16 ` [PATCH 1/6] ARM: kvm: psci: fix handling of unimplemented functions Lorenzo Pieralisi
2015-05-29 12:16 ` Lorenzo Pieralisi
[not found] ` <1432901799-18359-2-git-send-email-lorenzo.pieralisi-5wv7dgnIgG8@public.gmane.org>
2015-05-29 13:04 ` Sudeep Holla
2015-05-29 13:04 ` Sudeep Holla
2015-06-09 17:18 ` Marc Zyngier
2015-06-09 17:18 ` Marc Zyngier
[not found] ` <55771FDC.3090800-5wv7dgnIgG8@public.gmane.org>
2015-06-10 8:24 ` Lorenzo Pieralisi
2015-06-10 8:24 ` Lorenzo Pieralisi
2015-05-29 12:16 ` [PATCH 2/6] drivers: firmware: psci: add INVALID_ADDRESS return value Lorenzo Pieralisi
2015-05-29 12:16 ` Lorenzo Pieralisi
2015-05-29 12:16 ` [PATCH 3/6] drivers: firmware: psci: move power_state handling to generic code Lorenzo Pieralisi
2015-05-29 12:16 ` Lorenzo Pieralisi
[not found] ` <1432901799-18359-4-git-send-email-lorenzo.pieralisi-5wv7dgnIgG8@public.gmane.org>
2015-06-01 9:28 ` Will Deacon
2015-06-01 9:28 ` Will Deacon
2015-05-29 12:16 ` [PATCH 4/6] drivers: firmware: psci: add PSCI_FEATURES call Lorenzo Pieralisi
2015-05-29 12:16 ` Lorenzo Pieralisi
2015-05-29 12:16 ` [PATCH 5/6] drivers: firmware: psci: add extended stateid power_state support Lorenzo Pieralisi
2015-05-29 12:16 ` Lorenzo Pieralisi
[not found] ` <1432901799-18359-6-git-send-email-lorenzo.pieralisi-5wv7dgnIgG8@public.gmane.org>
2015-06-05 14:16 ` Ashwin Chaugule
2015-06-05 14:16 ` Ashwin Chaugule
[not found] ` <CAJ5Y-eYLAjOcTU1Md3Rmc0E49A5Dby1aoBzwtpKpD4Rg=XAYfA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2015-06-08 11:03 ` Lorenzo Pieralisi
2015-06-08 11:03 ` Lorenzo Pieralisi
2015-05-29 12:16 ` [PATCH 6/6] drivers: firmware: psci: add PSCI v1.0 DT bindings Lorenzo Pieralisi
2015-05-29 12:16 ` Lorenzo Pieralisi
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