From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id A988A2066CE for ; Tue, 27 May 2025 20:34:41 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=170.10.129.124 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1748378083; cv=none; b=czzYAQzW+Fm3XH67mWzHjr+w3vyNtdcMR98tbscyOzc9oA8gRaZ/jFwZU10T27+ye0Tn6X3/I4/mXri5vSDrp0RHCcno89Dg6WjphTr5HXhIJV5qb2P/6u6UO1HK+jQlYupVdSlvhkWTfd5tbaINBywINMZtyO+CEkOzzn3k+0g= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1748378083; c=relaxed/simple; bh=WFrf8h0EsBhuIZr3pXmc+Gk70qBJc63v1czz66GunHQ=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=RJR0ZIFG30KuPUTKy/+SzipaAthA6lp4CcjFXHv4Wz5+CZEWYmdaxCcgirzYnA5YRhojIjR7aHdVpsqEoZhlt0cyT1MEz8l196LswMx95BxDdZ2P4km74M1r0L0HnCsOpvzYssZ5UwOcmLdke+t/zQ61JCHKHQayHg27tsxH5CU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=redhat.com; spf=pass smtp.mailfrom=redhat.com; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b=CYNjee9S; arc=none smtp.client-ip=170.10.129.124 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=redhat.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=redhat.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="CYNjee9S" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1748378080; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding; bh=qyhGX9TysOct1LJVAWGiSKDcEfScPBYQiUtTvog/bC8=; b=CYNjee9SqtfBrPUPaJiNvltFynHK3zCQz4RKZMr0c/FUD/ciYQdYrM9eWqas8svaHgDTfY py7qICmXsfa9EG3lvZCUqSv9eX3GyiPsCs+0eYFva09NEfF/+uZPsEOmu1A5caRSBCz85R DW8QyYE2ScXb0ivAuZyqfWOM6/ArYtI= Received: from mx-prod-mc-08.mail-002.prod.us-west-2.aws.redhat.com (ec2-35-165-154-97.us-west-2.compute.amazonaws.com [35.165.154.97]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-645-DEPerqrVOlqKWpNASXTynQ-1; Tue, 27 May 2025 16:34:37 -0400 X-MC-Unique: DEPerqrVOlqKWpNASXTynQ-1 X-Mimecast-MFC-AGG-ID: DEPerqrVOlqKWpNASXTynQ_1748378075 Received: from mx-prod-int-08.mail-002.prod.us-west-2.aws.redhat.com (mx-prod-int-08.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.111]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mx-prod-mc-08.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id 9F7DD1801BC0; Tue, 27 May 2025 20:34:01 +0000 (UTC) Received: from chopper.redhat.com (unknown [10.22.82.65]) by mx-prod-int-08.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTP id 21BE418003FC; Tue, 27 May 2025 20:33:57 +0000 (UTC) From: Lyude Paul To: rust-for-linux@vger.kernel.org, Thomas Gleixner , Boqun Feng , linux-kernel@vger.kernel.org, Daniel Almeida Cc: Miguel Ojeda , Alex Gaynor , Gary Guo , =?UTF-8?q?Bj=C3=B6rn=20Roy=20Baron?= , Benno Lossin , Andreas Hindborg , Alice Ryhl , Trevor Gross , Danilo Krummrich Subject: [RFC v10 00/14] Refcounted interrupts, SpinLockIrq for rust Date: Tue, 27 May 2025 16:26:45 -0400 Message-ID: <20250527203355.551287-1-lyude@redhat.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Scanned-By: MIMEDefang 3.4.1 on 10.30.177.111 Hi! While this patch series still needs some changes on the C side, I wanted to update things and send out the latest version of it that's been sitting on my machine for a while now. This adds back the mistakenly missing commit messages along with a number of other changes that were requested. Please keep in mind, there are still some issues with this patch series that I do need help with solving before it can move forward: * https://lore.kernel.org/rust-for-linux/ZxrCrlg1XvaTtJ1I@boqun-archlinux/ * Concerns around double checking the HARDIRQ bits against all architectures that have interrupt priority support. I know what IPL is but I really don't have a clear understanding of how this actually fits together in the kernel's codebase or even how to find the documentation for many of the architectures involved here. Please help :C! If you want these rust bindings, figuring out these two issues will let this patch seires move forward. The previous version of this patch series can be found here: https://lore.kernel.org/rust-for-linux/20250227221924.265259-4-lyude@redhat.com/T/ Boqun Feng (6): preempt: Introduce HARDIRQ_DISABLE_BITS preempt: Introduce __preempt_count_{sub, add}_return() irq & spin_lock: Add counted interrupt disabling/enabling rust: helper: Add spin_{un,}lock_irq_{enable,disable}() helpers rust: sync: lock: Add `Backend::BackendInContext` locking: Switch to _irq_{disable,enable}() variants in cleanup guards Lyude Paul (8): rust: Introduce interrupt module rust: sync: Add SpinLockIrq rust: sync: Introduce lock::Backend::Context rust: sync: Add a lifetime parameter to lock::global::GlobalGuard rust: sync: lock/global: Rename B to G in trait bounds rust: sync: Expose lock::Backend rust: sync: lock/global: Add Backend parameter to GlobalGuard rust: sync: lock/global: Add BackendInContext support to GlobalLock arch/arm64/include/asm/preempt.h | 18 +++ arch/s390/include/asm/preempt.h | 19 +++ arch/x86/include/asm/preempt.h | 10 ++ include/asm-generic/preempt.h | 14 +++ include/linux/irqflags.h | 1 - include/linux/irqflags_types.h | 6 + include/linux/preempt.h | 20 +++- include/linux/spinlock.h | 88 +++++++++++--- include/linux/spinlock_api_smp.h | 27 +++++ include/linux/spinlock_api_up.h | 8 ++ include/linux/spinlock_rt.h | 16 +++ kernel/locking/spinlock.c | 31 +++++ kernel/softirq.c | 3 + rust/helpers/helpers.c | 1 + rust/helpers/interrupt.c | 18 +++ rust/helpers/spinlock.c | 15 +++ rust/kernel/interrupt.rs | 83 +++++++++++++ rust/kernel/lib.rs | 1 + rust/kernel/sync.rs | 5 +- rust/kernel/sync/lock.rs | 69 ++++++++++- rust/kernel/sync/lock/global.rs | 91 ++++++++++----- rust/kernel/sync/lock/mutex.rs | 2 + rust/kernel/sync/lock/spinlock.rs | 186 ++++++++++++++++++++++++++++++ 23 files changed, 680 insertions(+), 52 deletions(-) create mode 100644 rust/helpers/interrupt.c create mode 100644 rust/kernel/interrupt.rs base-commit: a3b2347343e077e81d3c169f32c9b2cb1364f4cc -- 2.49.0