From nobody Thu Oct 9 11:02:24 2025 Received: from mail-wm1-f53.google.com (mail-wm1-f53.google.com [209.85.128.53]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 65D9821578F; Wed, 18 Jun 2025 10:28:58 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.128.53 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1750242540; cv=none; b=HUpHLQ3AoxKUCeY8rXOO/Jj4LHXtIy8/imfJy1mWWDOXuei4z2dil5T2W91MdJGVpE6xteGx1Nk0AVD6bmg4uLV2XgDZXPcrstJFzgfnebs4gnIqRUTlaFVIPzCS3iOzZBAEm98l++KamM3fvpTg5dLYJ/iZ1Xx+YQoRO0UIJWQ= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1750242540; c=relaxed/simple; bh=T0SJPHJhwVKORNMLpZJcWv8mbwrStmXpFFZ9WfsgFkI=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=qGAndAMVCE3Lfr3LmZ0p5RQsLIIA320bBo7rRCFmfy0H+2XmE77VnccXM5/Um7qsdY84xKeNAnMypa2/ewRCLluxEE//9ET/j91SaPhnXMzyYL9IbPdOjdLqX0OlcIcNcD/8qypaf5PHyPd/4Pxspeh4trSHdF6t/qMotuNBvfI= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=ZmLgEDOc; arc=none smtp.client-ip=209.85.128.53 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="ZmLgEDOc" Received: by mail-wm1-f53.google.com with SMTP id 5b1f17b1804b1-451d7b50815so56795045e9.2; Wed, 18 Jun 2025 03:28:58 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1750242537; x=1750847337; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:sender:from:to:cc:subject:date :message-id:reply-to; bh=AAsGZRd53w+Z7fyD/JC6KZq84tLoTkjPM83MNjJS0NE=; b=ZmLgEDOcqQq0o5zezDOuNDl1q1Xodbt/ACjR8+M+ALhwcnG6nPln3nP03o4Z28dido ChQZKXGy0K6QY/qIsv5bfbBWktAxN6pcYKLPUQRSp5MoLbgDSmCNtZUDeXrXsAD7iavK WLUQN/MM43dp+52gHnCB71wt/cJF8MLTX1xX42mSqm3EloPPLuGbTKE+8pTwc0ZNSWnw vUNRI1WrFm6sAr31T+J36AzaPaVJD/9l6yQi/TDkqBF8pB2g4bU9d/Ix/z4THnpnrFU0 9LCGyiGexb845KMa1rL60Upk1ZeuRn87jolJCIt0FDk7zJ+oSICqFqXjb4lwey2/YjSA pK7Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1750242537; x=1750847337; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:sender:x-gm-message-state:from :to:cc:subject:date:message-id:reply-to; bh=AAsGZRd53w+Z7fyD/JC6KZq84tLoTkjPM83MNjJS0NE=; b=OO4oE20SWe10EmLqpTDiz9eSM1BomRgTanNKU9a7KRmPExSxifJTsxxMGRRtzHVnIy 3OfdkAN9fntSQ7/i3NIg4knBzdvOxqXoKABXwA2D3/DZlN6SUSDLE7AMotYuI2Juctti kDSL6C2l3EVOlCohb9kd79kBHTfUjDsdYGoXw4jo54vMnUtFE0Pg30DdpWJLmlhg4715 Dj8Fh1cVjxpLwDKP6l2LazW+4VyDyz/Mq/BtRYrdaItW8NJUF+C5Q1u8WA/AatLmBzOq 2480KzERhLy0iwY9+J0hDtY/NRzdLUHlmLALYR9LmQdDbIVHDGHeN1IR2VHmTD/vjujK QK5A== X-Forwarded-Encrypted: i=1; AJvYcCUgVour87XifuktOU0/4eYynM0yAr3Gturm4V4KC82vnW0JH5e+L1m62AMj3kl4EEpwrInBaEApdR6Gu+tMkz4=@vger.kernel.org, AJvYcCUwTIjry3Cg4LgMHUVXFV7GYFPNyiU4rdrKp4T2SM1dvftGgTtDPYpfvVneS17r8zBtgrq7XAlit3a9NkeG@vger.kernel.org, AJvYcCWmKxHi4pD9+iqMRLKMf2Y7mc7QKvs7NYLk9Oi6ZPl9SlcDNosFGvit/TowLeVWVs2l0Lsedk0Sb6tH@vger.kernel.org X-Gm-Message-State: AOJu0YzJ2J6Dh5nGxyJK0qB9oMZVG5YGLDblQIZQOVuf6VJ41Yo45ceH 4gIz3ihsEmny2NU/KdWQLEqoa1v3P1mtFPW8slrhh76/V/auLpyqP+sx X-Gm-Gg: ASbGncvcsbLrSCNUGLQ9/4cEg+5rH0Ks/eVEKg9Vp+qBQl3nuVbJ1Km8PmkR78ytxEw w7RQh1nmp7wDVGSo7XHZlJ7Bx416af9UA8W5tYXJjmUupkXTB+haU3cE5GSWul2wWEEK8PU/UiZ 4YaJ68AMtZKLX8QUJrYj5F7+wI4LUckAvCfDc/Kw1NNnEUeOJNKLqnt6ohOofKXtc8OA3I+UgSJ fIHr9AFhkR58wH3jDQUno7LIEZucvWAZmn7ZVlSUhLCPpdh6OH5rvg/dK1S7FTTv/SMuDmdLQlM GQdRrZiNADotZ0kPwvbaG/FQkQb0XOgde9mu7ECiJYMYrvLD+pDOd3SFW4OuIBF/fGa83dlauEZ EY/hHcq9j9gVP6nFDs9dbjgq/FuHlEcwImQ1DDvY= X-Google-Smtp-Source: AGHT+IG4qgyrL1HA5S/KZPAkJ4SBAyNYbQB2c36HChaEOrLssPGD5XPO47yPsV1kRMOz16sqHr2WfA== X-Received: by 2002:a05:600c:8012:b0:43b:ce36:7574 with SMTP id 5b1f17b1804b1-4533cae684fmr168876995e9.11.1750242536280; Wed, 18 Jun 2025 03:28:56 -0700 (PDT) Received: from igor-korotin-Precision-Tower-3620.airspan.com ([188.39.32.4]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-4535971b18esm10060145e9.2.2025.06.18.03.28.55 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 18 Jun 2025 03:28:55 -0700 (PDT) Sender: Igor Korotin From: Igor Korotin To: ojeda@kernel.org, alex.gaynor@gmail.com, rafael@kernel.org, gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, rust-for-linux@vger.kernel.org, linux-acpi@vger.kernel.org Cc: boqun.feng@gmail.com, gary@garyguo.net, bjorn3_gh@protonmail.com, benno.lossin@proton.me, a.hindborg@kernel.org, aliceryhl@google.com, tmgross@umich.edu, dakr@kernel.org, lenb@kernel.org, wedsonaf@gmail.com, viresh.kumar@linaro.org, alex.hung@amd.com, dingxiangfei2009@gmail.com Subject: [PATCH v7 9/9] samples: rust: add ACPI match table example to platform driver Date: Wed, 18 Jun 2025 11:26:54 +0100 Message-ID: <20250618102654.3050345-1-igor.korotin.linux@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20250618100221.3047133-1-igor.korotin.linux@gmail.com> References: <20250618100221.3047133-1-igor.korotin.linux@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Extend the Rust sample platform driver to probe using device/driver name matching, OF ID table matching, or ACPI ID table matching. Signed-off-by: Igor Korotin --- samples/rust/rust_driver_platform.rs | 70 +++++++++++++++++++++++++++- 1 file changed, 69 insertions(+), 1 deletion(-) diff --git a/samples/rust/rust_driver_platform.rs b/samples/rust/rust_drive= r_platform.rs index 036dd0b899b0..57e3ac77ef54 100644 --- a/samples/rust/rust_driver_platform.rs +++ b/samples/rust/rust_driver_platform.rs @@ -2,8 +2,68 @@ =20 //! Rust Platform driver sample. =20 +//! ACPI match table test +//! +//! This demonstrates how to test an ACPI-based Rust platform driver using= QEMU +//! with a custom SSDT. +//! +//! Steps: +//! +//! 1. **Create an SSDT source file** (`ssdt.dsl`) with the following cont= ent: +//! +//! ```asl +//! DefinitionBlock ("", "SSDT", 2, "TEST", "VIRTACPI", 0x00000001) +//! { +//! Scope (\_SB) +//! { +//! Device (T432) +//! { +//! Name (_HID, "TST0001") // ACPI hardware ID to match +//! Name (_UID, 1) +//! Name (_STA, 0x0F) // Device present, enabled +//! Name (_CRS, ResourceTemplate () +//! { +//! Memory32Fixed (ReadWrite, 0xFED00000, 0x1000) +//! }) +//! } +//! } +//! } +//! ``` +//! +//! 2. **Compile the table**: +//! +//! ```sh +//! iasl -tc ssdt.dsl +//! ``` +//! +//! This generates `ssdt.aml` +//! +//! 3. **Run QEMU** with the compiled AML file: +//! +//! ```sh +//! qemu-system-x86_64 -m 512M \ +//! -enable-kvm \ +//! -kernel path/to/bzImage \ +//! -append "root=3D/dev/sda console=3DttyS0" \ +//! -hda rootfs.img \ +//! -serial stdio \ +//! -acpitable file=3Dssdt.aml +//! ``` +//! +//! Requirements: +//! - The `rust_driver_platform` must be present either: +//! - built directly into the kernel (`bzImage`), or +//! - available as a `.ko` file and loadable from `rootfs.img` +//! +//! 4. **Verify it worked** by checking `dmesg`: +//! +//! ``` +//! rust_driver_platform TST0001:00: Probed with info: '0'. +//! ``` +//! + use kernel::{ - c_str, + acpi, c_str, device::{self, Core}, of, platform, prelude::*, @@ -24,9 +84,17 @@ struct SampleDriver { [(of::DeviceId::new(c_str!("test,rust-device")), Info(42))] ); =20 +kernel::acpi_device_table!( + ACPI_TABLE, + MODULE_ACPI_TABLE, + ::IdInfo, + [(acpi::DeviceId::new(b"TST0001"), Info(0))] +); + impl platform::Driver for SampleDriver { type IdInfo =3D Info; const OF_ID_TABLE: Option> =3D Some(&OF_TABL= E); + const ACPI_ID_TABLE: Option> =3D Some(&ACP= I_TABLE); =20 fn probe( pdev: &platform::Device, --=20 2.43.0