From patchwork Mon Sep 30 23:10:07 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lyude Paul X-Patchwork-Id: 13817277 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 911A2CEB2CB for ; Mon, 30 Sep 2024 23:40:35 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 11C7310E5AA; Mon, 30 Sep 2024 23:40:35 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (1024-bit key; unprotected) header.d=redhat.com header.i=@redhat.com header.b="FA9mF/D2"; dkim-atps=neutral Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) by gabe.freedesktop.org (Postfix) with ESMTPS id 8230C10E5A3 for ; Mon, 30 Sep 2024 23:40:33 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1727739632; 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=60V41hOGujHu5sr/jwQK4i2saVJBJYoo6sOpK9L71eA=; b=FA9mF/D20FIxcEGGKV6ciNwFrk3dppNFvhfEs5S/i/VcjOAbGID4k2E2IT+lSBHC+5SGDZ kRB+4s0PaUEIOGavIeiSgVwxaXGZ0GjQPdN1Fzsq/C4adiupp9ORsX4M9wfK/i0jruRwQz FcY+EdB++zJlMmJWvntxkXtui11bjSw= Received: from mx-prod-mc-02.mail-002.prod.us-west-2.aws.redhat.com (ec2-54-186-198-63.us-west-2.compute.amazonaws.com [54.186.198.63]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-231-QVcBuQXJPZC4PTHFCIUINA-1; Mon, 30 Sep 2024 19:40:29 -0400 X-MC-Unique: QVcBuQXJPZC4PTHFCIUINA-1 Received: from mx-prod-int-01.mail-002.prod.us-west-2.aws.redhat.com (unknown [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-02.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id CE0DC19626D7; Mon, 30 Sep 2024 23:40:26 +0000 (UTC) Received: from chopper.redhat.com (unknown [10.22.32.36]) by mx-prod-int-01.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTP id 22E813003E4D; Mon, 30 Sep 2024 23:40:22 +0000 (UTC) From: Lyude Paul To: dri-devel@lists.freedesktop.org, rust-for-linux@vger.kernel.org Cc: Asahi Lina , Danilo Krummrich , mcanal@igalia.com, airlied@redhat.com, zhiw@nvidia.com, cjia@nvidia.com, jhubbard@nvidia.com, Miguel Ojeda , Alex Gaynor , Wedson Almeida Filho , Boqun Feng , Gary Guo , =?utf-8?q?Bj=C3=B6rn_Roy_Baron?= , Benno Lossin , Andreas Hindborg , Alice Ryhl , Trevor Gross , linux-kernel@vger.kernel.org (open list) Subject: [WIP RFC v2 24/35] rust: drm/kms: Add RawCrtcState::active() Date: Mon, 30 Sep 2024 19:10:07 -0400 Message-ID: <20240930233257.1189730-25-lyude@redhat.com> In-Reply-To: <20240930233257.1189730-1-lyude@redhat.com> References: <20240930233257.1189730-1-lyude@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.4.1 on 10.30.177.4 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" A binding for checking drm_crtc_state.active. Signed-off-by: Lyude Paul --- rust/kernel/drm/kms/crtc.rs | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/rust/kernel/drm/kms/crtc.rs b/rust/kernel/drm/kms/crtc.rs index 43c7264402b07..ec9b58763dcca 100644 --- a/rust/kernel/drm/kms/crtc.rs +++ b/rust/kernel/drm/kms/crtc.rs @@ -496,6 +496,14 @@ fn crtc(&self) -> &Self::Crtc { // state unsafe { ::from_raw((*self.as_raw()).crtc) } } + + /// Returns whether or not the CRTC is active in this atomic state. + fn active(&self) -> bool { + // SAFETY: `active` and the rest of its containing bitfield can only be modified from the + // atomic check context, and are invariant beyond that point - so our interface can ensure + // this access is serialized + unsafe { (*self.as_raw()).active } + } } impl RawCrtcState for T {}