From: Bagas Sanjaya <bagasdotme@gmail.com>
To: Pankaj Gupta <pankaj.gupta@nxp.com>,
Jonathan Corbet <corbet@lwn.net>, Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>,
Shawn Guo <shawnguo@kernel.org>,
Sascha Hauer <s.hauer@pengutronix.de>,
Pengutronix Kernel Team <kernel@pengutronix.de>,
Fabio Estevam <festevam@gmail.com>
Cc: linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org,
devicetree@vger.kernel.org, imx@lists.linux.dev,
linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH v17 1/7] Documentation/firmware: add imx/se to other_interfaces
Date: Thu, 12 Jun 2025 16:47:44 +0700 [thread overview]
Message-ID: <aEqiQEMpbekiG6Hn@archie.me> (raw)
In-Reply-To: <20250426-imx-se-if-v17-1-0c85155a50d1@nxp.com>
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On Sat, Apr 26, 2025 at 12:31:32AM +0530, Pankaj Gupta wrote:
> +Each 'se-if' comprise of twp layers:
> +- (C_DEV Layer) User-Space software-access interface.
> +- (Service Layer) OS-level software-access interface.
> +
> + +--------------------------------------------+
> + | Character Device(C_DEV) |
> + | |
> + | +---------+ +---------+ +---------+ |
> + | | misc #1 | | misc #2 | ... | misc #n | |
> + | | dev | | dev | | dev | |
> + | +---------+ +---------+ +---------+ |
> + | +-------------------------+ |
> + | | Misc. Dev Synchr. Logic | |
> + | +-------------------------+ |
> + | |
> + +--------------------------------------------+
> +
> + +--------------------------------------------+
> + | Service Layer |
> + | |
> + | +-----------------------------+ |
> + | | Message Serialization Logic | |
> + | +-----------------------------+ |
> + | +---------------+ |
> + | | imx-mailbox | |
> + | | mailbox.c | |
> + | +---------------+ |
> + | |
> + +--------------------------------------------+
> +
> <snipped>
> +
> + Misc-device(/dev/<se>_mux_chn) synchronization protocol:
> +
> + Non-Secure + Secure
> + |
> + |
> + +---------+ +-------------+ |
> + | se_fw.c +<---->+imx-mailbox.c| |
> + | | | mailbox.c +<-->+------+ +------+
> + +---+-----+ +-------------+ | MU X +<-->+ ELE |
> + | +------+ +------+
> + +----------------+ |
> + | | |
> + v v |
> + logical logical |
> + receiver waiter |
> + + + |
> + | | |
> + | | |
> + | +----+------+ |
> + | | | |
> + | | | |
> + device_ctx device_ctx device_ctx |
> + |
> + User 0 User 1 User Y |
> + +------+ +------+ +------+ |
> + |misc.c| |misc.c| |misc.c| |
> + kernel space +------+ +------+ +------+ |
> + |
> + +------------------------------------------------------ |
> + | | | |
> + userspace /dev/ele_muXch0 | | |
> + /dev/ele_muXch1 | |
> + /dev/ele_muXchY |
> + |
> +
Wrap both diagrams above in literal code block (use double-colon).
Thanks.
--
An old man doll... just what I always wanted! - Clara
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next prev parent reply other threads:[~2025-06-12 9:47 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-04-25 19:01 [PATCH v17 0/7] firmware: imx: driver for NXP secure-enclave Pankaj Gupta
2025-04-25 19:01 ` [PATCH v17 1/7] Documentation/firmware: add imx/se to other_interfaces Pankaj Gupta
2025-06-12 9:38 ` Shawn Guo
2025-06-12 9:47 ` Bagas Sanjaya [this message]
2025-04-25 19:01 ` [PATCH v17 2/7] dt-bindings: arm: fsl: add imx-se-fw binding doc Pankaj Gupta
2025-04-25 19:01 ` [PATCH v17 3/7] firmware: imx: add driver for NXP EdgeLock Enclave Pankaj Gupta
2025-05-20 18:36 ` Frank Li
2025-04-25 19:01 ` [PATCH v17 4/7] firmware: imx: device context dedicated to priv Pankaj Gupta
2025-04-25 19:01 ` [PATCH v17 5/7] firmware: drivers: imx: adds miscdev Pankaj Gupta
2025-05-20 18:44 ` Frank Li
2025-04-25 19:01 ` [PATCH v17 6/7] arm64: dts: imx8ulp: add secure enclave node Pankaj Gupta
2025-04-25 19:01 ` [PATCH v17 7/7] arm64: dts: imx8ulp-evk: add reserved memory property Pankaj Gupta
2025-05-27 17:55 ` [PATCH v17 0/7] firmware: imx: driver for NXP secure-enclave Pankaj Gupta
2025-06-12 8:14 ` Shawn Guo
2025-06-12 9:42 ` [EXT] " Pankaj Gupta
2025-06-13 1:41 ` Shawn Guo
2025-06-19 12:09 ` Pankaj Gupta
2025-07-09 10:23 ` Pankaj Gupta
2025-07-11 5:35 ` Shawn Guo
2025-07-11 6:21 ` Pankaj Gupta
2025-07-31 8:00 ` Pankaj Gupta
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