linux-kernel - [PATCH RFT 00/12] firmware: arm_ffa: Add FF-A v1.1 notifications support

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Message-ID: <20230803-ffa_v1-1_notif-v1-0-6613ff2b1f81@arm.com>
Date:   Thu,  3 Aug 2023 20:02:04 +0100
From:   Sudeep Holla <sudeep.holla@....com>
To:     linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Cc:     Sudeep Holla <sudeep.holla@....com>,
        Jens Wiklander <jens.wiklander@...aro.org>,
        Lucian Paul-Trifu <lucian.paul-trifu@....com>,
        Marc Bonnici <marc.bonnici@....com>,
        Coboy Chen <coboy.chen@...iatek.com>
Subject: [PATCH RFT 00/12] firmware: arm_ffa: Add FF-A v1.1 notifications support

The series adds initial support for the notifications added in FF-A v1.1
The notification mechanism enables a requester/sender endpoint to notify
a service provider/receiver endpoint about an event with non-blocking
semantics.

A notification is akin to the doorbell between two endpoints in a
communication protocol that is based upon the doorbell/mailbox mechanism.

The framework is responsible for the delivery of the notification from the
sender to the receiver without blocking the sender. The receiver endpoint
relies on the OS scheduler for allocation of CPU cycles to handle a
notification.

OS is referred as the receiver’s scheduler in the context of notifications.
The framework is responsible for informing the receiver’s scheduler that
the receiver must be run since it has a pending notification.

Signed-off-by: Sudeep Holla <sudeep.holla@....com>
---
Sudeep Holla (12):
      firmware: arm_ffa: Update the FF-A command list with v1.1 additions
      firmware: arm_ffa: Implement notification bitmap create and destroy interfaces
      firmware: arm_ffa: Implement the notification bind and unbind interface
      firmware: arm_ffa: Implement the FFA_RUN interface
      firmware: arm_ffa: Implement the FFA_NOTIFICATION_SET interface
      firmware: arm_ffa: Implement the FFA_NOTIFICATION_GET interface
      firmware: arm_ffa: Implement the NOTIFICATION_INFO_GET interface
      firmware: arm_ffa: Initial support for scheduler receiver interrupt
      firmware: arm_ffa: Add schedule receiver callback mechanism
      firmware: arm_ffa: Add interfaces to request notification callbacks
      firmware: arm_ffa: Add interface to send a notification to a given partition
      firmware: arm_ffa: Add notification handling mechanism

 drivers/firmware/arm_ffa/driver.c | 700 +++++++++++++++++++++++++++++++++++++-
 include/linux/arm_ffa.h           |  41 +++
 2 files changed, 740 insertions(+), 1 deletion(-)
---
base-commit: 5d0c230f1de8c7515b6567d9afba1f196fb4e2f4
change-id: 20230803-ffa_v1-1_notif-e11bc9459962

Best regards,
-- 
Regards,
Sudeep