From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) (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 5A30B383C86 for ; Wed, 11 Mar 2026 19:53:27 +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=1773258810; cv=none; b=DwWJaIxCDJpIkT6TkvKyZTZrlSLGLPkYLYeH+GigPmovud1foEXYu20fCL7Sj0Hw3CsU8sse4+5GeLLSRh1mIJFd6p76Pcn9C1juLJaIiwjIM/FquD2TGjqv12aFr9V6Yu9EQ0eoehqYNhhsD8tnZrvVLPpDMrrYs1fMLLkYQv0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773258810; c=relaxed/simple; bh=ffFXjVGJI8De8uvcOmL8xpnNtkMBQveyKWwsKB6si5s=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:content-type; b=WZIYd3/VJvhB/Awn6kMb58+vCMoo7E5Wc0GV4raOLJdo/JNOcvKL1gDZsUmRhUPol1cK8sodI0QpeKu7sfzhQSYu0gj8U63U9wKe7N9/jl5Ez7BqWPrjxqnLVyjWp18rccv4pVbQGxA/NX30Qmn0IGJIEaymzyTllLknCjcq3SQ= 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=LBv4RjRy; 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="LBv4RjRy" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1773258806; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=e+WXbsnpykkPWNgfP9lm2btwaJkvLFLmTBeYQq+/GUw=; b=LBv4RjRy1/k17mEtwg9K1qbxfBMrryoE60ceCGJXPX7ufEzLFn/gW2re0kycXJDivOBong ZE56ZvIM8JsrwAJF8YC+b+j5GI8ESJnS4BydEVMrgAfGuFoM92fwIi/UvFdjkx9hV4UWJe Qdgp6mdYuin168BzEFOzjReRgYkJ/GI= Received: from mx-prod-mc-06.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-562-xCY5C2K8PtKNeXsUtuTymA-1; Wed, 11 Mar 2026 15:53:22 -0400 X-MC-Unique: xCY5C2K8PtKNeXsUtuTymA-1 X-Mimecast-MFC-AGG-ID: xCY5C2K8PtKNeXsUtuTymA_1773258799 Received: from mx-prod-int-01.mail-002.prod.us-west-2.aws.redhat.com (mx-prod-int-01.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.4]) (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-06.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id 9317318005B8; Wed, 11 Mar 2026 19:53:18 +0000 (UTC) Received: from GoldenWind.redhat.com (unknown [10.22.81.64]) by mx-prod-int-01.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTP id 868083002D0E; Wed, 11 Mar 2026 19:53:14 +0000 (UTC) From: Lyude Paul To: nouveau@lists.freedesktop.org, Gary Guo , Daniel Almeida , rust-for-linux@vger.kernel.org Cc: Matthew Maurer , FUJITA Tomonori , Lorenzo Stoakes , christian.koenig@amd.com, Asahi Lina , Miguel Ojeda , Andreas Hindborg , Simona Vetter , Alice Ryhl , Boqun Feng , Sumit Semwal , Krishna Ketan Rai , linux-media@vger.kernel.org, Shankari Anand , David Airlie , Benno Lossin , Viresh Kumar , linaro-mm-sig@lists.linaro.org, Asahi Lina , Greg Kroah-Hartman , kernel@vger.kernel.org Subject: [PATCH v8 3/7] rust: helpers: Add bindings/wrappers for dma_resv_lock Date: Wed, 11 Mar 2026 15:52:42 -0400 Message-ID: <20260311195246.2439593-4-lyude@redhat.com> In-Reply-To: <20260311195246.2439593-1-lyude@redhat.com> References: <20260311195246.2439593-1-lyude@redhat.com> Precedence: bulk X-Mailing-List: rust-for-linux@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.4.1 on 10.30.177.4 X-Mimecast-MFC-PROC-ID: uoVtFb_3STIyJAreDGTrw0vbcD_9POHqeUg0N9Ha3IY_1773258799 X-Mimecast-Originator: redhat.com Content-Transfer-Encoding: 8bit content-type: text/plain; charset="US-ASCII"; x-default=true 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 Reviewed-by: Alice Ryhl Reviewed-by: Janne Grunau 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_helper.h index 083cc44aa952c..39a8f15603692 100644 --- a/rust/bindings/bindings_helper.h +++ b/rust/bindings/bindings_helper.h @@ -48,6 +48,7 @@ #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 a3c42e51f00a0..d090e2c7c7ea8 100644 --- a/rust/helpers/helpers.c +++ b/rust/helpers/helpers.c @@ -28,6 +28,7 @@ #include "cred.c" #include "device.c" #include "dma.c" +#include "dma-resv.c" #include "drm.c" #include "err.c" #include "irq.c" -- 2.53.0