linux-kernel - [PATCH v2 0/2] mailbox queue length check

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Message-ID: <20251007151828.1527105-1-tanmay.shah@amd.com>
Date: Tue, 7 Oct 2025 08:18:26 -0700
From: Tanmay Shah <tanmay.shah@....com>
To: <jassisinghbrar@...il.com>, <andersson@...nel.org>,
	<mathieu.poirier@...aro.org>
CC: <linux-kernel@...r.kernel.org>, <linux-remoteproc@...r.kernel.org>, Tanmay
 Shah <tanmay.shah@....com>
Subject: [PATCH v2 0/2] mailbox queue length check 

Provide mechanism to check mailbox queue length before posting new
message to mailbox queue.

Changes in v2:
  - Split patchset in two patches for two different subsystems.
  - Change design and introduce new field per channel to track mbox
    queue length.
  - use this new field in xlnx remoteproc driver to prevent sending new
    messages if no slots available in the mbox tx channel queue.

Tanmay Shah (2):
  mailbox: check mailbox queue is full or not
  remoteproc: xlnx: do not kick if mbox queue is full

 drivers/mailbox/mailbox.c               | 3 +++
 drivers/remoteproc/xlnx_r5_remoteproc.c | 5 +++++
 include/linux/mailbox_controller.h      | 2 ++
 3 files changed, 10 insertions(+)


base-commit: 56d030ea3330ab737fe6c05f89d52f56208b07ac
-- 
2.34.1