From: Lokesh Vutla <lokeshvutla@ti.com>
To: Nishanth Menon <nm@ti.com>, Tero Kristo <t-kristo@ti.com>,
Santosh Shilimkar <ssantosh@kernel.org>,
Rob Herring <robh+dt@kernel.org>
Cc: Lokesh Vutla <lokeshvutla@ti.com>,
Device Tree Mailing List <devicetree@vger.kernel.org>,
Sekhar Nori <nsekhar@ti.com>,
Linux ARM Mailing List <linux-arm-kernel@lists.infradead.org>
Subject: [PATCH v4 0/5] soc: ti: k3: Allow for exclusive and shared device requests
Date: Mon, 22 Jul 2019 10:37:52 +0530 [thread overview]
Message-ID: <20190722050757.29893-1-lokeshvutla@ti.com> (raw)
Sysfw provides an option for requesting exclusive access for a
device using the flags MSG_FLAG_DEVICE_EXCLUSIVE. If this flag is
not used, the device is meant to be shared across hosts. Once a device
is requested from a host with this flag set, any request to this
device from a different host will be nacked by sysfw.
Current tisci firmware and pm drivers always requests for device with
exclusive permissions set. But this is not be true for certain devices
that are expcted to be shared across different host contexts.
So add support for getting the shared or exclusive permissions from DT
and request firmware accordingly.
Changes since v3: https://patchwork.kernel.org/project/linux-arm-kernel/list/?series=103447
- Rebased on top of v5.3-rc1
- Updated power-domain cells for j721e.
- Mark the console uart as shared in am65x-base-board
- Added Reviewed-by from Rob
Lokesh Vutla (5):
firmware: ti_sci: Allow for device shared and exclusive requests
dt-bindings: ti_sci_pm_domains: Add support for exclusive and shared
access
soc: ti: ti_sci_pm_domains: Add support for exclusive and shared
access
arm64: dts: ti: k3-am654: Update the power domain cells
arm64: dts: ti: k3-j721e: Update the power domain cells
.../bindings/soc/ti/sci-pm-domain.txt | 11 ++++-
MAINTAINERS | 1 +
arch/arm64/boot/dts/ti/k3-am65-main.dtsi | 44 +++++++++---------
arch/arm64/boot/dts/ti/k3-am65-mcu.dtsi | 10 ++---
arch/arm64/boot/dts/ti/k3-am65-wakeup.dtsi | 6 +--
arch/arm64/boot/dts/ti/k3-am65.dtsi | 1 +
.../arm64/boot/dts/ti/k3-am654-base-board.dts | 1 +
.../dts/ti/k3-j721e-common-proc-board.dts | 4 ++
arch/arm64/boot/dts/ti/k3-j721e-main.dtsi | 20 ++++-----
.../boot/dts/ti/k3-j721e-mcu-wakeup.dtsi | 6 +--
arch/arm64/boot/dts/ti/k3-j721e.dtsi | 1 +
drivers/firmware/ti_sci.c | 45 ++++++++++++++++++-
drivers/soc/ti/ti_sci_pm_domains.c | 23 +++++++++-
include/dt-bindings/soc/ti,sci_pm_domain.h | 9 ++++
include/linux/soc/ti/ti_sci_protocol.h | 3 ++
15 files changed, 136 insertions(+), 49 deletions(-)
create mode 100644 include/dt-bindings/soc/ti,sci_pm_domain.h
--
2.21.0
WARNING: multiple messages have this Message-ID (diff)
From: Lokesh Vutla <lokeshvutla@ti.com>
To: Nishanth Menon <nm@ti.com>, Tero Kristo <t-kristo@ti.com>,
Santosh Shilimkar <ssantosh@kernel.org>,
Rob Herring <robh+dt@kernel.org>
Cc: Lokesh Vutla <lokeshvutla@ti.com>,
Device Tree Mailing List <devicetree@vger.kernel.org>,
Sekhar Nori <nsekhar@ti.com>,
Linux ARM Mailing List <linux-arm-kernel@lists.infradead.org>
Subject: [PATCH v4 0/5] soc: ti: k3: Allow for exclusive and shared device requests
Date: Mon, 22 Jul 2019 10:37:52 +0530 [thread overview]
Message-ID: <20190722050757.29893-1-lokeshvutla@ti.com> (raw)
Sysfw provides an option for requesting exclusive access for a
device using the flags MSG_FLAG_DEVICE_EXCLUSIVE. If this flag is
not used, the device is meant to be shared across hosts. Once a device
is requested from a host with this flag set, any request to this
device from a different host will be nacked by sysfw.
Current tisci firmware and pm drivers always requests for device with
exclusive permissions set. But this is not be true for certain devices
that are expcted to be shared across different host contexts.
So add support for getting the shared or exclusive permissions from DT
and request firmware accordingly.
Changes since v3: https://patchwork.kernel.org/project/linux-arm-kernel/list/?series=103447
- Rebased on top of v5.3-rc1
- Updated power-domain cells for j721e.
- Mark the console uart as shared in am65x-base-board
- Added Reviewed-by from Rob
Lokesh Vutla (5):
firmware: ti_sci: Allow for device shared and exclusive requests
dt-bindings: ti_sci_pm_domains: Add support for exclusive and shared
access
soc: ti: ti_sci_pm_domains: Add support for exclusive and shared
access
arm64: dts: ti: k3-am654: Update the power domain cells
arm64: dts: ti: k3-j721e: Update the power domain cells
.../bindings/soc/ti/sci-pm-domain.txt | 11 ++++-
MAINTAINERS | 1 +
arch/arm64/boot/dts/ti/k3-am65-main.dtsi | 44 +++++++++---------
arch/arm64/boot/dts/ti/k3-am65-mcu.dtsi | 10 ++---
arch/arm64/boot/dts/ti/k3-am65-wakeup.dtsi | 6 +--
arch/arm64/boot/dts/ti/k3-am65.dtsi | 1 +
.../arm64/boot/dts/ti/k3-am654-base-board.dts | 1 +
.../dts/ti/k3-j721e-common-proc-board.dts | 4 ++
arch/arm64/boot/dts/ti/k3-j721e-main.dtsi | 20 ++++-----
.../boot/dts/ti/k3-j721e-mcu-wakeup.dtsi | 6 +--
arch/arm64/boot/dts/ti/k3-j721e.dtsi | 1 +
drivers/firmware/ti_sci.c | 45 ++++++++++++++++++-
drivers/soc/ti/ti_sci_pm_domains.c | 23 +++++++++-
include/dt-bindings/soc/ti,sci_pm_domain.h | 9 ++++
include/linux/soc/ti/ti_sci_protocol.h | 3 ++
15 files changed, 136 insertions(+), 49 deletions(-)
create mode 100644 include/dt-bindings/soc/ti,sci_pm_domain.h
--
2.21.0
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next reply other threads:[~2019-07-22 5:07 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-07-22 5:07 Lokesh Vutla [this message]
2019-07-22 5:07 ` [PATCH v4 0/5] soc: ti: k3: Allow for exclusive and shared device requests Lokesh Vutla
2019-07-22 5:07 ` [PATCH v4 1/5] firmware: ti_sci: Allow for device shared and exclusive requests Lokesh Vutla
2019-07-22 5:07 ` Lokesh Vutla
2019-07-22 5:07 ` [PATCH v4 2/5] dt-bindings: ti_sci_pm_domains: Add support for exclusive and shared access Lokesh Vutla
2019-07-22 5:07 ` Lokesh Vutla
2019-07-22 5:07 ` [PATCH v4 3/5] soc: ti: " Lokesh Vutla
2019-07-22 5:07 ` Lokesh Vutla
2019-07-22 5:07 ` [PATCH v4 4/5] arm64: dts: ti: k3-am654: Update the power domain cells Lokesh Vutla
2019-07-22 5:07 ` Lokesh Vutla
2019-07-22 5:07 ` [PATCH v4 5/5] arm64: dts: ti: k3-j721e: " Lokesh Vutla
2019-07-22 5:07 ` Lokesh Vutla
2019-07-22 5:11 ` [PATCH v4 0/5] soc: ti: k3: Allow for exclusive and shared device requests Lokesh Vutla
2019-07-22 5:11 ` Lokesh Vutla
2019-07-23 11:42 ` Nishanth Menon
2019-07-23 11:42 ` Nishanth Menon
2019-07-25 17:39 ` santosh.shilimkar
2019-07-25 17:39 ` santosh.shilimkar
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