From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-qk1-f171.google.com (mail-qk1-f171.google.com [209.85.222.171]) (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 774BE8C0B; Sat, 19 Jul 2025 03:08:33 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.222.171 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1752894515; cv=none; b=uiLPba2XTuGKpnXoHDh4l+arev99kbxuyogMZqxR/jdZ68/rfLOFfhqjMcLis5w61ZCUMwUq4O0ux/jwi0VKWIJXY5EArsKNCPmA/2+jijVtuRV2AZyyICR3hP+g4HW6Vc8oSD1Dx+5ardpqk1y+JbwR7IUORgzJc6b+5TfaZ/c= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1752894515; c=relaxed/simple; bh=cA+Rlc1UA4aEgEbhMbx+uYk06TRoNYUa2mIsSD9jTQE=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=jbvffDXS2egTzm5Whbaxz1JfNTQ3FsA9IMKWOTikQSIWvapHXhYqDF6IAxF7U3avecUHw2eq27wwj1BnciJyDJgXy8YzSiL/XV/JZQJ3Dh9drD7XFi77fngdY3RA+q+CkImbBO8gJW/226yHTUDoSbSfHdttEpr3xbg6ph55M0w= 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=hGmx6cVf; arc=none smtp.client-ip=209.85.222.171 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="hGmx6cVf" Received: by mail-qk1-f171.google.com with SMTP id af79cd13be357-7df981428abso419538785a.1; Fri, 18 Jul 2025 20:08:33 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1752894512; x=1753499312; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:feedback-id:from:to:cc:subject:date:message-id:reply-to; bh=nFN6uyXpb8WVQyZlorRYj+zulMxQ9kEVhp1w5q5VCv8=; b=hGmx6cVf4lTaD0EEWn+9nPl/ZjbxGzvuLNYUvDc5wCCZOMW/tpsnlUIGDuV9pb4Kmp gofnNYtJ2qRVHJi8DUw9FFbic5P+HIrlya/FRDkhsf3C0FNjF/wo3wphAP7/w+m+fcZB Om1pChZb0zUlHkFxCrePPC6ClR1T7EwOVcutGxbWOvqoGug6ArLLhCIvV/srZuxOP8y0 zcV70GPyKzQlVofGBE/vy9N3nmhQkNmorR41J4WKRJlDNLAOikBV0+eBWbaqRE753NNf nSjUPjrC6RHcnsfGprs/e5aMJ8rByHe3mvBzMvMJ58+ObJUAH+THO2neMu+woIJaDbJO l2xg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1752894512; x=1753499312; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:feedback-id:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to; bh=nFN6uyXpb8WVQyZlorRYj+zulMxQ9kEVhp1w5q5VCv8=; b=VEczqeg281kJQWSMd8jIMat2AbPb/NGIXJ13tW0rMhTMnmF6qMFOReLNUq+MfAMdmp mDgUPI9lWH78v4kAKuoOGT+P3lGspmNxK/6A7kJGHj1ly8xi+wklWZQxZ1JxPiWJLfAy CnGQf7LP5wcu//stn3GmhHJJrdnvLtGFUBZ/+BXq5o/GaBglByn29Vb5G02TI/DxgfoX zHpZ5zLF6BRmAwXyWTdo46Vprq8UtFbXc9Oy/e3bSvRP3qBWP5SEQTuADIOtMXhiZZih pKgHCKzykdznxlygkF7XfIMjcjpjYzjwm9o2FudRvkxrYU/okA3XmC3n6ZG6nu5ubNfh EN2w== X-Forwarded-Encrypted: i=1; AJvYcCUQorImKStxn8X5CSZU7nDHccRX5o6a2OVnIZ3w1GIsDK9TWdPJnR0L8ZpWqFnoEBtskSp6p4xxrtVt@vger.kernel.org, AJvYcCVHuf+oTfn2gbBVGDsCE/dinV320JEbHAU1wY06b5m6/CoEITR+BGRSZBHGv3CTNHNR3A/I4GiSd136RYW7578=@vger.kernel.org X-Gm-Message-State: AOJu0YwXQy3C7rDf2j4A0ZaEU0LNE22K8Onz7A5Hs9xMdtccuei/yTcV D5UmZIM1P2ZVTugFLS1Jzia5irqVPcuEX5d09HRfcHbiuEl8AKhM3/nP X-Gm-Gg: ASbGncsrT7GU6aKaSwPLo47WcxHs5CsdeK4WjmTqHOCaDKhJN4h/iuN0bL7AyqDq3DH cgWUwniW90ywLrZ7Wh713YSi4l/8vCaDvoJFvuv/ibdje4oOcH5sCSUDmH2vujScTcCzTwVYmow MmKWfp0Chv0RgTQLON42BOlK2leDZpEh53uk0YIwNzFS7wdxHS7U3In+s1TqwzInd1AttB22Np3 45mThMVGeDH7yfe69y9ytRdmXQan5Tybzalq7FXQBwcYhGx9HsHiGkfXZ1D33yuD12/XQrCVp+p H6RA0gBVx7DyJ5dIhW+NTjPKQ3/xucfMkm9Le8PKWtCwNx3Vhvg63ZcgZbrW2P7/FQsUSNX2t96 4FcjHSRb53MeF9fLl+fcYqdTSoglc5xZCgQWQStT2ZDuaZ9M9v0tOUwc6WcPaAm8S8xXS1dmj1O WTYWeR8IzpHOOYd8p2FAJGNIQ= X-Google-Smtp-Source: AGHT+IH46tO8GnXNGM87ZiDkJfwNSMULwxgsOqQxzPPUobUpcgLsukjaJK1/fL19UjstzFKC6zQ0nA== X-Received: by 2002:a05:620a:26a1:b0:7e3:3fba:900b with SMTP id af79cd13be357-7e356a247e5mr726807785a.4.1752894512106; Fri, 18 Jul 2025 20:08:32 -0700 (PDT) Received: from fauth-a1-smtp.messagingengine.com (fauth-a1-smtp.messagingengine.com. [103.168.172.200]) by smtp.gmail.com with ESMTPSA id af79cd13be357-7e356c9015dsm158556385a.92.2025.07.18.20.08.31 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 18 Jul 2025 20:08:31 -0700 (PDT) Received: from phl-compute-05.internal (phl-compute-05.phl.internal [10.202.2.45]) by mailfauth.phl.internal (Postfix) with ESMTP id DE9E0F40066; Fri, 18 Jul 2025 23:08:30 -0400 (EDT) Received: from phl-mailfrontend-02 ([10.202.2.163]) by phl-compute-05.internal (MEProxy); Fri, 18 Jul 2025 23:08:30 -0400 X-ME-Sender: X-ME-Received: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgeeffedrtdefgdeihedvudcutefuodetggdotefrod ftvfcurfhrohhfihhlvgemucfhrghsthforghilhdpuffrtefokffrpgfnqfghnecuuegr ihhlohhuthemuceftddtnecusecvtfgvtghiphhivghnthhsucdlqddutddtmdenucfjug hrpefhvfevufffkffoggfgsedtkeertdertddtnecuhfhrohhmpeeuohhquhhnucfhvghn ghcuoegsohhquhhnrdhfvghnghesghhmrghilhdrtghomheqnecuggftrfgrthhtvghrnh epgeegueekgefhvedukedtveejhefhkeffveeufeduiedvleetledtkeehjefgieevnecu ffhomhgrihhnpehkvghrnhgvlhdrohhrghenucevlhhushhtvghrufhiiigvpedtnecurf grrhgrmhepmhgrihhlfhhrohhmpegsohhquhhnodhmvghsmhhtphgruhhthhhpvghrshho nhgrlhhithihqdeiledvgeehtdeigedqudejjeekheehhedvqdgsohhquhhnrdhfvghngh eppehgmhgrihhlrdgtohhmsehfihigmhgvrdhnrghmvgdpnhgspghrtghpthhtohepvdej pdhmohguvgepshhmthhpohhuthdprhgtphhtthhopehlihhnuhigqdhkvghrnhgvlhesvh hgvghrrdhkvghrnhgvlhdrohhrghdprhgtphhtthhopehruhhsthdqfhhorhdqlhhinhhu giesvhhgvghrrdhkvghrnhgvlhdrohhrghdprhgtphhtthhopehlkhhmmheslhhishhtsh drlhhinhhugidruggvvhdprhgtphhtthhopehlihhnuhigqdgrrhgthhesvhhgvghrrdhk vghrnhgvlhdrohhrghdprhgtphhtthhopehojhgvuggrsehkvghrnhgvlhdrohhrghdprh gtphhtthhopegrlhgvgidrghgrhihnohhrsehgmhgrihhlrdgtohhmpdhrtghpthhtohep sghoqhhunhdrfhgvnhhgsehgmhgrihhlrdgtohhmpdhrtghpthhtohepghgrrhihsehgrg hrhihguhhordhnvghtpdhrtghpthhtohepsghjohhrnhefpghghhesphhrohhtohhnmhgr ihhlrdgtohhm X-ME-Proxy: Feedback-ID: iad51458e:Fastmail Received: by mail.messagingengine.com (Postfix) with ESMTPA; Fri, 18 Jul 2025 23:08:30 -0400 (EDT) From: Boqun Feng To: linux-kernel@vger.kernel.org, rust-for-linux@vger.kernel.org, lkmm@lists.linux.dev, linux-arch@vger.kernel.org Cc: "Miguel Ojeda" , "Alex Gaynor" , "Boqun Feng" , "Gary Guo" , =?UTF-8?q?Bj=C3=B6rn=20Roy=20Baron?= , "Benno Lossin" , "Andreas Hindborg" , "Alice Ryhl" , "Trevor Gross" , "Danilo Krummrich" , "Will Deacon" , "Peter Zijlstra" , "Mark Rutland" , "Wedson Almeida Filho" , "Viresh Kumar" , "Lyude Paul" , "Ingo Molnar" , "Mitchell Levy" , "Paul E. McKenney" , "Greg Kroah-Hartman" , "Linus Torvalds" , "Thomas Gleixner" , "Alan Stern" Subject: [PATCH v8 0/9] LKMM atomics in Rust Date: Fri, 18 Jul 2025 20:08:18 -0700 Message-Id: <20250719030827.61357-1-boqun.feng@gmail.com> X-Mailer: git-send-email 2.39.5 (Apple Git-154) Precedence: bulk X-Mailing-List: linux-arch@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Hi all, This is the v8 of LKMM atomics in Rust, you can find the previous versions at: v7: https://lore.kernel.org/rust-for-linux/20250714053656.66712-1-boqun.feng@gmail.com/ v6: https://lore.kernel.org/rust-for-linux/20250710060052.11955-1-boqun.feng@gmail.com/ v5: https://lore.kernel.org/rust-for-linux/20250618164934.19817-1-boqun.feng@gmail.com/ v4: https://lore.kernel.org/rust-for-linux/20250609224615.27061-1-boqun.feng@gmail.com/ v3: https://lore.kernel.org/rust-for-linux/20250421164221.1121805-1-boqun.feng@gmail.com/ v2: https://lore.kernel.org/rust-for-linux/20241101060237.1185533-1-boqun.feng@gmail.com/ v1: https://lore.kernel.org/rust-for-linux/20240612223025.1158537-1-boqun.feng@gmail.com/ wip: https://lore.kernel.org/rust-for-linux/20240322233838.868874-1-boqun.feng@gmail.com/ Changes since v7: - A lot of trait renaming per the suggestion of Benno. - Add new internal type `AtomicRepr` to make Atomc*Ops function safe. - Rename atomic/ops.rs => atomic/internal.rs per the suggestion of Benno. - Move `Atomic`, `AtomicType` and `AtomicAdd` into atomic.rs. - Remove atomic/generic.rs and move `impl AtomciType for {i,u}{32, 64, size}` blocks and the tests into a new atomic/predefine.rs file. - Make `internal` not public, except that `AtomicImpl` is public. - Other minor documentation improvememt. Regards, Boqun Boqun Feng (9): rust: Introduce atomic API helpers rust: sync: Add basic atomic operation mapping framework rust: sync: atomic: Add ordering annotation types rust: sync: atomic: Add generic atomics rust: sync: atomic: Add atomic {cmp,}xchg operations rust: sync: atomic: Add the framework of arithmetic operations rust: sync: atomic: Add Atomic rust: sync: atomic: Add Atomic<{usize,isize}> rust: sync: Add memory barriers MAINTAINERS | 4 +- rust/helpers/atomic.c | 1040 +++++++++++++++++++++ rust/helpers/barrier.c | 18 + rust/helpers/helpers.c | 2 + rust/kernel/sync.rs | 2 + rust/kernel/sync/atomic.rs | 553 +++++++++++ rust/kernel/sync/atomic/internal.rs | 265 ++++++ rust/kernel/sync/atomic/ordering.rs | 104 +++ rust/kernel/sync/atomic/predefine.rs | 170 ++++ rust/kernel/sync/barrier.rs | 61 ++ scripts/atomic/gen-atomics.sh | 1 + scripts/atomic/gen-rust-atomic-helpers.sh | 67 ++ 12 files changed, 2286 insertions(+), 1 deletion(-) create mode 100644 rust/helpers/atomic.c create mode 100644 rust/helpers/barrier.c create mode 100644 rust/kernel/sync/atomic.rs create mode 100644 rust/kernel/sync/atomic/internal.rs create mode 100644 rust/kernel/sync/atomic/ordering.rs create mode 100644 rust/kernel/sync/atomic/predefine.rs create mode 100644 rust/kernel/sync/barrier.rs create mode 100755 scripts/atomic/gen-rust-atomic-helpers.sh -- 2.39.5 (Apple Git-154)