pta: scmi: remove noisy info level message on message process

Remove useless trace message emitted each time SCP-firmware
successfully processes an SCMI message.

Reviewed-by: Jens Wiklander <jens.w

pta: scmi: remove noisy info level message on message process

Remove useless trace message emitted each time SCP-firmware
successfully processes an SCMI message.

Reviewed-by: Jens Wiklander <jens.wiklander@linaro.org>
Signed-off-by: Etienne Carriere <etienne.carriere@foss.st.com>

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core: pta: scmi: fix typo in open session test

Fixes a typo in config switch name CFG_SCMI_MSG_DRIVERS in SCMI PTA
open session function.

Fixes: 7ff454421a8c ("core: pta: scmi: support SCP-firmware

core: pta: scmi: fix typo in open session test

Fixes a typo in config switch name CFG_SCMI_MSG_DRIVERS in SCMI PTA
open session function.

Fixes: 7ff454421a8c ("core: pta: scmi: support SCP-firmware SCMI resources")
Acked-by: Jerome Forissier <jerome.forissier@linaro.org>
Signed-off-by: Etienne Carriere <etienne.carriere@linaro.org>

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core: pta: scmi: support SCP-firmware SCMI resources

Updates SCMI PTA to use SCP-firmware resources when CFG_SCMI_SCPFW=y.

Acked-by: Jens Wiklander <jens.wiklander@linaro.org>
Acked-by: Jerome Fori

core: pta: scmi: support SCP-firmware SCMI resources

Updates SCMI PTA to use SCP-firmware resources when CFG_SCMI_SCPFW=y.

Acked-by: Jens Wiklander <jens.wiklander@linaro.org>
Acked-by: Jerome Forissier <jerome.forissier@linaro.org>
Signed-off-by: Etienne Carriere <etienne.carriere@linaro.org>

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core: pta: scmi: simplify scmi-msg case in open session

Allows session opening when CFG_SCMI_MSG_DRIVERS is enabled instead
of testing the 2 possible scmi-msg transport protocol config switches.

Ac

core: pta: scmi: simplify scmi-msg case in open session

Allows session opening when CFG_SCMI_MSG_DRIVERS is enabled instead
of testing the 2 possible scmi-msg transport protocol config switches.

Acked-by: Jens Wiklander <jens.wiklander@linaro.org>
Acked-by: Jerome Forissier <jerome.forissier@linaro.org>
Signed-off-by: Etienne Carriere <etienne.carriere@linaro.org>

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core: pta: scmi: internal switches for supported transports

Adds internal configuration switch _CFG_SMCI_PTA_SMT_HEADER
and _CFG_SCMI_PTA_MSG_HEADER to specify which are supported.
This change will

core: pta: scmi: internal switches for supported transports

Adds internal configuration switch _CFG_SMCI_PTA_SMT_HEADER
and _CFG_SCMI_PTA_MSG_HEADER to specify which are supported.
This change will ease integration of the alternate SCMI server
build from SCP-firmware.

Acked-by: Jens Wiklander <jens.wiklander@linaro.org>
Acked-by: Jerome Forissier <jerome.forissier@linaro.org>
Signed-off-by: Etienne Carriere <etienne.carriere@linaro.org>

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core: pta: scmi: Add error checking for MSG message protocol

It is an error to use MSG_HEADER capability if it is not
enabled in the config.

Signed-off-by: Ludvig Pärsson <ludvig.parsson@axis.com>

core: pta: scmi: Add error checking for MSG message protocol

It is an error to use MSG_HEADER capability if it is not
enabled in the config.

Signed-off-by: Ludvig Pärsson <ludvig.parsson@axis.com>
Reviewed-by: Etienne Carriere <etienne.carriere@linaro.org>

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core: pta: scmi: Fix open_session for CFG_SCMI_MSG_SHM_MSG

Currently you have to enable CFG_SCMI_MSG_SMT, even if you
only want to use CFG_SCMI_MSG_SHM_MSG, in order to open
a session to the PTA.

S

core: pta: scmi: Fix open_session for CFG_SCMI_MSG_SHM_MSG

Currently you have to enable CFG_SCMI_MSG_SMT, even if you
only want to use CFG_SCMI_MSG_SHM_MSG, in order to open
a session to the PTA.

Signed-off-by: Ludvig Pärsson <ludvig.parsson@axis.com>
Reviewed-by: Etienne Carriere <etienne.carriere@linaro.org>

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core: pta: scmi: new API to support MSG header communication protocol

in the SCMI PTA.
Adds a new capability and a new command to the SCMI PTA API to support
SCMI MSG header communication protocol.

core: pta: scmi: new API to support MSG header communication protocol

in the SCMI PTA.
Adds a new capability and a new command to the SCMI PTA API to support
SCMI MSG header communication protocol. Capability
PTA_SCMI_CAPS_MSG_HEADER allows client and service to negotiate the
desired transport configuration. Command PTA_SCMI_CMD_PROCESS_MSG_CHANNEL
allows client to request processing of a message sent based on that
message exchange protocol where input and output SCMI messages are
exchange using OP-TEE shared memory references provided by the
client.

Acked-by: Jens Wiklander <jens.wiklander@linaro.org>
Signed-off-by: Etienne Carriere <etienne.carriere@linaro.org>

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drivers: scmi-msg: add SCMI MSG message protocol

Implements MSG header protocol to handle SCMI messages. MSG header
protocol was introduced in Linux kernel v5.15 [1]. It relies on normal
cached shar

drivers: scmi-msg: add SCMI MSG message protocol

Implements MSG header protocol to handle SCMI messages. MSG header
protocol was introduced in Linux kernel v5.15 [1]. It relies on normal
cached shared memory buffer using a 32bit header followed by the SCMI
message payload.

To support this message interface, the SCMI PTA defines a new capability
and a new command. Capability PTA_SCMI_CAPS_MSG_HEADER allows client and
service to negotiate the desired transport configuration. Command
PTA_SCMI_CMD_PROCESS_MSG_CHANNEL allows client to request processing
of a message sent based on that message exchange protocol.

Platforms shall enable configuration switch CFG_SCMI_MSG_SHM_MSG to have
their SCMI service supporting that communication protocol.

Link: [1] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=f301bba0ca7392d16a6ea4f1d264a91f1fadea1a
Acked-by: Jens Wiklander <jens.wiklander@linaro.org>
Signed-off-by: Etienne Carriere <etienne.carriere@linaro.org>

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core: pta: scmi: fix missing threaded state of the channel

Enable SMT channel threaded state when SCMI PTA gets a channel. Before
this fixup, Core panics when SCMI message is posted since the assert

core: pta: scmi: fix missing threaded state of the channel

Enable SMT channel threaded state when SCMI PTA gets a channel. Before
this fixup, Core panics when SCMI message is posted since the assertion
on channel threaded field value in scmi_smt_threaded_entry() when
in debug mode.

Fixes: b0a1c2504aaf ("core: pta: scmi: new interface to REE SCMI agent")
Signed-off-by: Etienne Carriere <etienne.carriere@linaro.org>
Acked-by: Jens Wiklander <jens.wiklander@linaro.org>

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core: pta: scmi: new interface to REE SCMI agent

Adds a PTA interface to REE SCMI agents to get SCMI message communication
channel for processing in OP-TEE SCMI server.

Currently implement supports

core: pta: scmi: new interface to REE SCMI agent

Adds a PTA interface to REE SCMI agents to get SCMI message communication
channel for processing in OP-TEE SCMI server.

Currently implement supports for a SCMI server built with
CFG_SCMI_MSG_SMT=y. The implementation is made so that an alternate
SCMI server implementation can added.

Client gets SCMI channel capabilities with PTA_SCMI_CMD_CAPABILITIES.
Client gets a handle for an SCMI channel with command
PTA_SCMI_CMD_GET_CHANNEL_HANDLE.
Client pushes SCMI messages with command PTA_SCMI_CMD_PROCESS_SMT_CHANNEL
or PTA_SCMI_CMD_PROCESS_SMT_CHANNEL_MESSAGE.

Signed-off-by: Etienne Carriere <etienne.carriere@linaro.org>
Reviewed-by: Jens Wiklander <jens.wiklander@linaro.org>

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