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[103.168.172.201]) by smtp.gmail.com with ESMTPSA id af79cd13be357-7c925b69d0asm437358585a.99.2025.04.21.09.42.30 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 21 Apr 2025 09:42:30 -0700 (PDT) Received: from phl-compute-11.internal (phl-compute-11.phl.internal [10.202.2.51]) by mailfauth.phl.internal (Postfix) with ESMTP id 6DE101200043; Mon, 21 Apr 2025 12:42:30 -0400 (EDT) Received: from phl-mailfrontend-01 ([10.202.2.162]) by phl-compute-11.internal (MEProxy); Mon, 21 Apr 2025 12:42:30 -0400 X-ME-Sender: X-ME-Received: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgeefvddrtddtgddvgedufeeiucetufdoteggodetrf dotffvucfrrhhofhhilhgvmecuhfgrshhtofgrihhlpdggtfgfnhhsuhgsshgtrhhisggv pdfurfetoffkrfgpnffqhgenuceurghilhhouhhtmecufedttdenucesvcftvggtihhpih gvnhhtshculddquddttddmnecujfgurhephffvvefufffkofgggfestdekredtredttden ucfhrhhomhepuehoqhhunhcuhfgvnhhguceosghoqhhunhdrfhgvnhhgsehgmhgrihhlrd gtohhmqeenucggtffrrghtthgvrhhnpeeggeeukeeghfevudektdevjeehhfekffevueef udeivdelteeltdekheejgfeiveenucffohhmrghinhepkhgvrhhnvghlrdhorhhgnecuve hluhhsthgvrhfuihiivgeptdenucfrrghrrghmpehmrghilhhfrhhomhepsghoqhhunhdo mhgvshhmthhprghuthhhphgvrhhsohhnrghlihhthidqieelvdeghedtieegqddujeejke ehheehvddqsghoqhhunhdrfhgvnhhgpeepghhmrghilhdrtghomhesfhhigihmvgdrnhgr mhgvpdhnsggprhgtphhtthhopeehiedpmhhouggvpehsmhhtphhouhhtpdhrtghpthhtoh eprhhushhtqdhfohhrqdhlihhnuhigsehvghgvrhdrkhgvrhhnvghlrdhorhhgpdhrtghp thhtoheprhgtuhesvhhgvghrrdhkvghrnhgvlhdrohhrghdprhgtphhtthhopehlihhnuh igqdhkvghrnhgvlhesvhhgvghrrdhkvghrnhgvlhdrohhrghdprhgtphhtthhopehlihhn uhigqdgrrhgthhesvhhgvghrrdhkvghrnhgvlhdrohhrghdprhgtphhtthhopehllhhvmh eslhhishhtshdrlhhinhhugidruggvvhdprhgtphhtthhopehlkhhmmheslhhishhtshdr lhhinhhugidruggvvhdprhgtphhtthhopehojhgvuggrsehkvghrnhgvlhdrohhrghdprh gtphhtthhopegrlhgvgidrghgrhihnohhrsehgmhgrihhlrdgtohhmpdhrtghpthhtohep sghoqhhunhdrfhgvnhhgsehgmhgrihhlrdgtohhm X-ME-Proxy: Feedback-ID: iad51458e:Fastmail Received: by mail.messagingengine.com (Postfix) with ESMTPA; Mon, 21 Apr 2025 12:42:29 -0400 (EDT) From: Boqun Feng To: rust-for-linux@vger.kernel.org, rcu@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org, llvm@lists.linux.dev, lkmm@lists.linux.dev Cc: Miguel Ojeda , Alex Gaynor , Boqun Feng , Gary Guo , =?UTF-8?q?Bj=C3=B6rn=20Roy=20Baron?= , Benno Lossin , Andreas Hindborg , Alice Ryhl , Alan Stern , Andrea Parri , Will Deacon , Peter Zijlstra , Nicholas Piggin , David Howells , Jade Alglave , Luc Maranget , "Paul E. McKenney" , Akira Yokosawa , Daniel Lustig , Joel Fernandes , Nathan Chancellor , Nick Desaulniers , kent.overstreet@gmail.com, Greg Kroah-Hartman , elver@google.com, Mark Rutland , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , x86@kernel.org, "H. Peter Anvin" , Catalin Marinas , torvalds@linux-foundation.org, linux-arm-kernel@lists.infradead.org, linux-fsdevel@vger.kernel.org, Trevor Gross , dakr@redhat.com, Frederic Weisbecker , Neeraj Upadhyay , Josh Triplett , Uladzislau Rezki , Steven Rostedt , Mathieu Desnoyers , Lai Jiangshan , Zqiang , Paul Walmsley , Palmer Dabbelt , Albert Ou , linux-riscv@lists.infradead.org Subject: [RFC v3 00/12] LKMM generic atomics in Rust Date: Mon, 21 Apr 2025 09:42:09 -0700 Message-ID: <20250421164221.1121805-1-boqun.feng@gmail.com> X-Mailer: git-send-email 2.47.1 Precedence: bulk X-Mailing-List: rust-for-linux@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Hi, v3 for LKMM atomics in Rust, you can find the previous versions: 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 v2: * Drop the temporary RCU binding since they are already in mainline. * Fix a few "Ipml" typos in previous versions per feedback from Alice Ryhl. * Documentation improvement per feedback from Alice Ryhl. I'm hoping to at least get the first 8 patches (atomic operations on normal integer) in a good shape so that we can have them in v6.16. Thanks! Regards, Boqun Boqun Feng (12): 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: atomic: Add Atomic<*mut T> rust: sync: atomic: Add arithmetic ops for Atomic<*mut T> rust: sync: Add memory barriers rust: sync: rcu: Add RCU protected pointer MAINTAINERS | 4 +- rust/helpers/atomic.c | 1038 +++++++++++++++++++++ rust/helpers/barrier.c | 18 + rust/helpers/helpers.c | 2 + rust/kernel/sync.rs | 2 + rust/kernel/sync/atomic.rs | 228 +++++ rust/kernel/sync/atomic/generic.rs | 488 ++++++++++ rust/kernel/sync/atomic/ops.rs | 199 ++++ rust/kernel/sync/atomic/ordering.rs | 94 ++ rust/kernel/sync/barrier.rs | 67 ++ rust/kernel/sync/rcu.rs | 275 +++++- scripts/atomic/gen-atomics.sh | 1 + scripts/atomic/gen-rust-atomic-helpers.sh | 65 ++ 13 files changed, 2479 insertions(+), 2 deletions(-) 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/generic.rs create mode 100644 rust/kernel/sync/atomic/ops.rs create mode 100644 rust/kernel/sync/atomic/ordering.rs create mode 100644 rust/kernel/sync/barrier.rs create mode 100755 scripts/atomic/gen-rust-atomic-helpers.sh -- 2.47.1