From nobody Fri Oct 3 14:41:42 2025 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) (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 A8DE72D660A for ; Fri, 29 Aug 2025 22:42:14 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=170.10.133.124 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1756507336; cv=none; b=Tp8rX6q0CWGTCT2FOZBEfP6f1sIJBelvDHnuXxuBXJ4+FBhGD9MCvspcztt4BvEGyl88ckBj0NwM1uWd/4Y8HT7yV10tr/n63QxonmUA05hvxGO2aE5Nri7bcsJ6y5fKuCD/xQ0s5MHnarZf3CGL0A0npZKnEFBSF0rOCF2rJOk= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1756507336; c=relaxed/simple; bh=U8UnERAkfxzUAjGAE7pOlGorLb2FYdbdJBYSzttv4aQ=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=KGzhIykQVRnNmFkaMia1URw46t5snVnORkRMCdKQW41HuNjndDmSjqeox8lNRBGwY7v6z2qgSNT+0Dm9HXgQDTMff5tjaB6VnAa6wqpZV7hi7zpbvsa6ahf//+xKGpztKtNxBYvoukRla6GKJXZNS6uflnasyzKxg9vWFfLyB+8= 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=ipnLxohC; arc=none smtp.client-ip=170.10.133.124 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="ipnLxohC" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1756507333; 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: in-reply-to:in-reply-to:references:references; bh=IKybner1GmKgcTnqqF43UsfxL3oL5QNO4lMcxBfIxqQ=; b=ipnLxohCrhmzESf7kEJMr7f9/peZMlnl4A5MGsdEdMK/ww8ZSYJexURX1X9x+j+bS4Epq+ y27o23sDoPzdLrtmmIG+lccYzZUNsiDXI9mcsEz+ICzG8TYQNqZjUYWow/aMOTRmd8OSV7 AP7Lh4LInGvIBrnjnAFuVQZ3VQaDrrQ= 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-272-HVLOyX7aO1u5bu5ue-B6og-1; Fri, 29 Aug 2025 18:42:11 -0400 X-MC-Unique: HVLOyX7aO1u5bu5ue-B6og-1 X-Mimecast-MFC-AGG-ID: HVLOyX7aO1u5bu5ue-B6og_1756507327 Received: from mx-prod-int-06.mail-002.prod.us-west-2.aws.redhat.com (mx-prod-int-06.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.93]) (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 176841800347; Fri, 29 Aug 2025 22:42:07 +0000 (UTC) Received: from chopper.redhat.com (unknown [10.22.80.78]) by mx-prod-int-06.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTP id A460518003FC; Fri, 29 Aug 2025 22:42:01 +0000 (UTC) From: Lyude Paul To: dri-devel@lists.freedesktop.org, rust-for-linux@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Asahi Lina , 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 , Sumit Semwal , =?UTF-8?q?Christian=20K=C3=B6nig?= , Greg Kroah-Hartman , Asahi Lina , Viresh Kumar , Daniel Almeida , Wedson Almeida Filho , FUJITA Tomonori , Krishna Ketan Rai , linux-media@vger.kernel.org (open list:DMA BUFFER SHARING FRAMEWORK:Keyword:\bdma_(?:buf|fence|resv)\b), linaro-mm-sig@lists.linaro.org (moderated list:DMA BUFFER SHARING FRAMEWORK:Keyword:\bdma_(?:buf|fence|resv)\b) Subject: [PATCH v3 05/14] rust: helpers: Add bindings/wrappers for dma_resv_lock Date: Fri, 29 Aug 2025 18:35:20 -0400 Message-ID: <20250829224116.477990-6-lyude@redhat.com> In-Reply-To: <20250829224116.477990-1-lyude@redhat.com> References: <20250829224116.477990-1-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: quoted-printable X-Scanned-By: MIMEDefang 3.4.1 on 10.30.177.93 Content-Type: text/plain; charset="utf-8" From: Asahi Lina This is just for basic usage in the DRM shmem abstractions for implied locking, not intended as a full DMA Reservation abstraction yet. Signed-off-by: Asahi Lina Signed-off-by: Daniel Almeida Signed-off-by: Lyude Paul --- rust/bindings/bindings_helper.h | 1 + rust/helpers/dma-resv.c | 13 +++++++++++++ rust/helpers/helpers.c | 1 + 3 files changed, 15 insertions(+) create mode 100644 rust/helpers/dma-resv.c diff --git a/rust/bindings/bindings_helper.h b/rust/bindings/bindings_helpe= r.h index c2cc52ee9945b..00fe0449ed6de 100644 --- a/rust/bindings/bindings_helper.h +++ b/rust/bindings/bindings_helper.h @@ -46,6 +46,7 @@ #include #include #include +#include #include #include #include diff --git a/rust/helpers/dma-resv.c b/rust/helpers/dma-resv.c new file mode 100644 index 0000000000000..05501cb814513 --- /dev/null +++ b/rust/helpers/dma-resv.c @@ -0,0 +1,13 @@ +// SPDX-License-Identifier: GPL-2.0 + +#include + +int rust_helper_dma_resv_lock(struct dma_resv *obj, struct ww_acquire_ctx = *ctx) +{ + return dma_resv_lock(obj, ctx); +} + +void rust_helper_dma_resv_unlock(struct dma_resv *obj) +{ + dma_resv_unlock(obj); +} diff --git a/rust/helpers/helpers.c b/rust/helpers/helpers.c index e94542bf6ea74..77354382fbea0 100644 --- a/rust/helpers/helpers.c +++ b/rust/helpers/helpers.c @@ -20,6 +20,7 @@ #include "cred.c" #include "device.c" #include "dma.c" +#include "dma-resv.c" #include "drm.c" #include "err.c" #include "fs.c" --=20 2.50.0