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Thu, 12 Jun 2025 02:47:48 -0700 (PDT) Received: from archie.me ([103.124.138.155]) by smtp.gmail.com with ESMTPSA id 41be03b00d2f7-b2fd613d81dsm966545a12.25.2025.06.12.02.47.47 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 12 Jun 2025 02:47:47 -0700 (PDT) Received: by archie.me (Postfix, from userid 1000) id B44D44241817; Thu, 12 Jun 2025 16:47:44 +0700 (WIB) Date: Thu, 12 Jun 2025 16:47:44 +0700 From: Bagas Sanjaya To: Pankaj Gupta , Jonathan Corbet , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Shawn Guo , Sascha Hauer , Pengutronix Kernel Team , Fabio Estevam 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 Message-ID: References: <20250426-imx-se-if-v17-0-0c85155a50d1@nxp.com> <20250426-imx-se-if-v17-1-0c85155a50d1@nxp.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="oH2YG5RUiU+HONaV" Content-Disposition: inline In-Reply-To: <20250426-imx-se-if-v17-1-0c85155a50d1@nxp.com> --oH2YG5RUiU+HONaV Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable 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 | | > + | +---------------+ | > + | | > + +--------------------------------------------+ > + > > + > + Misc-device(/dev/_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. --=20 An old man doll... just what I always wanted! - Clara --oH2YG5RUiU+HONaV Content-Type: application/pgp-signature; name=signature.asc -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQSSYQ6Cy7oyFNCHrUH2uYlJVVFOowUCaEqiOAAKCRD2uYlJVVFO ozyXAP0aBRO1KFa+AGM5cBvWcVeY8OuEyqTxzHKI/v6k+zKsNQEAvGxANofk/mBi s+wj3u05E/Xgxa9C5b23RBYacSQLLAE= =SdFq -----END PGP SIGNATURE----- --oH2YG5RUiU+HONaV--