From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 16451FB44C8 for ; Fri, 24 Apr 2026 07:45:04 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 4286210F380; Fri, 24 Apr 2026 07:44:46 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=gmail.com header.i=@gmail.com header.b="XwGetgKt"; dkim-atps=neutral Received: from mail-pj1-f48.google.com (mail-pj1-f48.google.com [209.85.216.48]) by gabe.freedesktop.org (Postfix) with ESMTPS id ADCB910E118 for ; Fri, 24 Apr 2026 05:47:59 +0000 (UTC) Received: by mail-pj1-f48.google.com with SMTP id 98e67ed59e1d1-35da1af3e10so6995428a91.3 for ; Thu, 23 Apr 2026 22:47:59 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20251104; t=1777009679; x=1777614479; darn=lists.freedesktop.org; h=content-transfer-encoding:mime-version:message-id:date:subject:to :from:from:to:cc:subject:date:message-id:reply-to; bh=Q7M2fwY604nxmRG1YIO02Z14fgzwwg1Pa67qHupVFxk=; b=XwGetgKtkGGHwt9IyWUgxf7zn9eSI8jTIHfpVhjB8x03XZd4neqPEmbP0oGaf6Azgl 0JQBUOELggeNPlkf332oUePkyzHTL4vbFDLZMEaYHL11zUcta/2LZbxSg55BWf8xaEe/ wrbwdWlvp+07uifi1vlX1A72Hhp+AbmS1iwqzLC2H+76whTph6j1uGQ2LK3Q76BU6xf/ jHPaF2RZcuW3iLf5XJqmjD1yqLwhY75dvnCk8AhK2dBdQuhPfwIMP222dxlHtxV4MVBg GJ7xN7KDFTs6cDr0Mx7Xf7c84GemhJZf3YRL+uG7XFixWT6ooTzsgxB1+d6Bm/WDXV/F ghIw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1777009679; x=1777614479; h=content-transfer-encoding:mime-version:message-id:date:subject:to :from:x-gm-gg:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=Q7M2fwY604nxmRG1YIO02Z14fgzwwg1Pa67qHupVFxk=; b=g0T4T+Xw4Eb4FdW2PFG+WiNzzDd2qhs2h4CvAzzI/NUz6NUJuLZJVHMdYNUaW+3YYr YHKvRlxare+hMptULq6/CKsoSibElmwx7b5r5qoqweo+dxDApkGoLhesbKsy3zbHMvTf +fjP5D6WXGnwAk2bIdBnUH0r2wrVHhqknihezwcEfOM7PQ9PcFePEnVPOWdkxEnrVd+t LOzMO/Fk6/L94sCzSNW9RyXWQ7/fUT8X0lfDrZiTY0XAUj7GLljjdApaIvMFtDxFNd1t 5TZenkpj4WFgZwBrfWTcCcqQsFTPWLG9MGpEucQGXFJC2Dp1skpnvQsNgDhjy73NBucJ TVpA== X-Forwarded-Encrypted: i=1; AFNElJ8nHUXaTk345A2Sg5mrF72e5rMx0/ApuIMCvZOhsK4EHnlcTlfsP1D2wH3IKmxtTwVcIBBhpRfOYZg=@lists.freedesktop.org X-Gm-Message-State: AOJu0Yzte6zn1oI7OX/2olMheLC36MHqddsNLN7nDSVaSQVG1V0/3eUt sdPD7R/HueMflUrFnqvy2lh9BP9OhkpPfCAfZlbugpDcieoUO91ZzffI X-Gm-Gg: AeBDievhbY03TdIq0/kkmLLF+CMxSyapdRwg/XUKtnvelcc8vwlgw+88dyJT3ENC3Ip ees9uZCYFXJh9FBFsZqX8zudFQeIlIDu4ewyNY8EA1A1Xvk2MFl0yQi6xLleZqrZl6IjXnmdZb2 CZHpewiaDcPgc5erJvV8tLZ5UVd4fsRCAF3Lv8qB5fcJ3tokzyDM+ZN0fl2MV8uj8x0/ob5QA6p fMMN0po3uWcWc6GDMHF8/zKffWf9RfjjXidUm06HpSXKWNJ7CMOoZMpBJ+OL2rH+cPtY+iXT2wu iLXsyu550+wvxqhSqxZQSbsf5Q+Ej5atXzFAvyJWtU5obAjrmWAEjDXUHEYhBEPaMC5K/q8dYtu KH9Nb6jSWAMBZOMCKxW3ZK1f+LEcggvhbqXkmUT5pqnB02CvksRBs7jGhhsa8Hz+GD7MzQb+uvT 3fk1RCRTor/PcZxR92gOoPgx9RlAJR4GKWpioaYTQqjnBJPx5BSxGjylVA2Bp5OhZuFdgpGvneV tmTd5cVy/cFXMo= X-Received: by 2002:a17:903:28e:b0:2b0:7531:b61e with SMTP id d9443c01a7336-2b5f9f9f125mr305572665ad.41.1777009679150; Thu, 23 Apr 2026 22:47:59 -0700 (PDT) Received: from li-1a3e774c-28e4-11b2-a85c-acc9f2883e29.bl1-in.ibm.com ([129.41.58.4]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-2b5faa176e9sm208778245ad.20.2026.04.23.22.47.48 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 23 Apr 2026 22:47:58 -0700 (PDT) From: "Mukesh Kumar Chaurasiya (IBM)" To: maddy@linux.ibm.com, mpe@ellerman.id.au, npiggin@gmail.com, chleroy@kernel.org, peterz@infradead.org, jpoimboe@kernel.org, jbaron@akamai.com, aliceryhl@google.com, rostedt@goodmis.org, ardb@kernel.org, sumit.semwal@linaro.org, christian.koenig@amd.com, ojeda@kernel.org, boqun@kernel.org, gary@garyguo.net, bjorn3_gh@protonmail.com, lossin@kernel.org, a.hindborg@kernel.org, tmgross@umich.edu, dakr@kernel.org, nathan@kernel.org, nick.desaulniers+lkml@gmail.com, morbo@google.com, justinstitt@google.com, tamird@kernel.org, arnd@arndb.de, nsc@kernel.org, mkchauras@gmail.com, simona.vetter@ffwll.ch, linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, dri-devel@lists.freedesktop.org, linaro-mm-sig@lists.linaro.org, rust-for-linux@vger.kernel.org, llvm@lists.linux.dev Subject: [PATCH V13 0/7] Rust support for powerpc Date: Fri, 24 Apr 2026 11:17:35 +0530 Message-ID: <20260424054742.45832-1-mkchauras@gmail.com> X-Mailer: git-send-email 2.53.0 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Mailman-Approved-At: Fri, 24 Apr 2026 07:44:43 +0000 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Enable experimental rust support for ppc64le and ppc32be. The patch for ppc32 has been provided by Link Mauve[1] and ppc64le support[2] has been merged over it. ppc32 needs some toolchain fixes mentioned in the patch `rust: Add PowerPC support` and the discussion for that is done here[1]. This has been tested on - powernv9 hardware - pseries P11 hardware - pseries(9, 10) qemu - powernv(9, 10) qemu - rustdoc on x86 and powerpc64le - rusttest on x86 and powerpc64le We are actively working with our LLVM team to get the target for ppc, ppc64 and ppc64le in the rust compiler. [1] https://lore.kernel.org/all/20260204030507.8203-1-linkmauve@linkmauve.fr [2] https://lore.kernel.org/all/20260204042417.83903-1-mkchauras@gmail.com Changelog: V12 -> V13: - Added a patch for fixing build issue on ppc32 by Link Mauve - Added another patch to fix a build issue in dma-buf - Added another patch to enforce minimum `rustc` version for powerpc V12: https://lore.kernel.org/all/20260421120958.190430-1-mkchauras@gmail.com/ V11 -> V12: - Rebased to mainline (rust/Makefile conflict resolved) V11: https://lore.kernel.org/all/20260417152253.2312961-1-mkchauras@gmail.com/ V10 -> V11: - Updated `rust/Makefile` - Not all libraries are move to `rust/host` directory now. Only proc_macro2, quote and syn are moved - Special handling for pin init is added. Details in commit - Removed mkdir for `rust/host`, this is now handled by toolchain. V10: https://lore.kernel.org/all/20260406200149.3727922-1-mkchauras@gmail.com/ V9 -> V10: - rust/Makefile updated with review comments from Miguel - Patch 1/4 updated with commit message and subject V9: https://lore.kernel.org/all/20260404121610.1956528-1-mkchauras@gmail.com/ V8 -> V9: - rust/Makefile updated with a directory instead of abspath V8: https://lore.kernel.org/all/20260403145308.1042622-1-mkchauras@gmail.com/ V7 -> V8: - rust/Makefile updated to separate host libraries from target V7: https://lore.kernel.org/all/20260329160254.2592207-1-mkchauras@gmail.com/ Changelog: V6 -> V7: - Documentation removed as powerpc is still under development - Added a fix for race condition in rust/Makefile V6: https://lore.kernel.org/all/20260210090023.2587534-1-mkchauras@gmail.com V5 -> V6: - Added a missing Tested by from Venkat which got missed since V3 - Support is marked as Maintained instead of experimental V5: https://lore.kernel.org/all/20260210053756.2088302-1-mkchauras@gmail.com V4 -> V5: - Removed a nested ifdef from PPC64 for Little endian toolchain V4: https://lore.kernel.org/all/20260209105456.1551677-1-mkchauras@gmail.com V3 -> V4: - Co-developed-by header added in patch 1 V3: https://lore.kernel.org/all/20260205180429.3280657-1-mkchauras@gmail.com V2 -> V3: - Splited HAVE_RUST in 2 lines - BINDGEN_TARGET_powerpc initialized before assigning the same to BINDGEN_TARGET V2: https://lore.kernel.org/all/20260204210125.613350-1-mkchauras@gmail.com V1 -> V2: - jump label fix for rust has been moved to a separate patch - PPC32 support has been taken - rust support has been marked experimental - target.json dependency has been removed - HAVE_RUST now depends on CPU_LITTLE_ENDIAN for PPC64 Link Mauve (2): rust: Make __udivdi3() and __umoddi3() panic rust: Add PowerPC support Mukesh Kumar Chaurasiya (IBM) (5): rust: Fix "multiple candidates for rmeta dependency core" error dma-resv: Fix undefined symbol when CONFIG_DMA_SHARED_BUFFER is disabled powerpc/jump_label: adjust inline asm to be consistent rust/powerpc: Set min rustc version for powerpc powerpc: Enable Rust for ppc64le arch/powerpc/Kconfig | 2 ++ arch/powerpc/Makefile | 7 ++++ arch/powerpc/include/asm/jump_label.h | 23 ++++++------ include/linux/dma-resv.h | 2 +- rust/Makefile | 52 +++++++++++++++++---------- rust/compiler_builtins.rs | 6 ++++ scripts/min-tool-version.sh | 6 +++- 7 files changed, 68 insertions(+), 30 deletions(-) -- 2.53.0