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 0EB8220E010 for ; Wed, 5 Mar 2025 23:07:59 +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=1741216081; cv=none; b=XfKiHjeGlbCA47+TY/Sk0w325Yw5hlM3I3mi5wxQw77pv4EpE8n0P+7nKnPbGtg2D/hbsfPfTcnfA35k4GCrma4kgSh90rX3Yx4TTkWT6cRAZi2XnhZWi2hZoQe10bIB1fpsiiXJ1qVOJK+BGdol1NypEvwuvLJgZ3ZthN6IzfM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1741216081; c=relaxed/simple; bh=aaLSN9RN3gmYzBHJpU5ewiDXbcZaSZXt4IfHYWgoc/Q=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=V9koSV6+msMKDm3YZ1+jxJYmS655FqE41e2ZJ2lql32+btFc0RTIGbwRgtEBRgyE+Amyr13yJvdoR04OaBdllKZzuirvnXH2hk7jTLrn7zjNaDhfNzhwBjJRfr+tAPrnjVQ34Mr1wm4b6E0TjyZnggUJtA5VyDdD+I/o3tOqLn0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none 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=SIiG+4VY; arc=none smtp.client-ip=170.10.133.124 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none 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="SIiG+4VY" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1741216079; 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=9knJ5NY3utv62oPTmxDgFn+ShbZu7msy2bjZd2Ss7KQ=; b=SIiG+4VYbKWVLYRWv78cjsCeIBWVBIw1pNTNEesg3jxjjNtQauGZbEoC1oVmlg583g7J2t 8tEekDcdLwa/MZy8DRXr39O5ncM7hbs4XFFHzWyXMupUd42F63QLpoqmDsWMICMXBViUVW deV5t4B6uZURLn4tslpyYIe96FfLKmk= 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-460-49tX_X7rPSCi0De8hFzj0Q-1; Wed, 05 Mar 2025 18:07:50 -0500 X-MC-Unique: 49tX_X7rPSCi0De8hFzj0Q-1 X-Mimecast-MFC-AGG-ID: 49tX_X7rPSCi0De8hFzj0Q_1741216068 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-02.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id 9481E19560BA; Wed, 5 Mar 2025 23:07:48 +0000 (UTC) Received: from chopper.redhat.com (unknown [10.22.88.81]) by mx-prod-int-01.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTP id EA261300019E; Wed, 5 Mar 2025 23:07:44 +0000 (UTC) From: Lyude Paul To: dri-devel@lists.freedesktop.org, rust-for-linux@vger.kernel.org Cc: Danilo Krummrich , mcanal@igalia.com, Alice Ryhl , Maxime Ripard , Simona Vetter , Daniel Almeida , Miguel Ojeda , Alex Gaynor , Boqun Feng , Gary Guo , =?UTF-8?q?Bj=C3=B6rn=20Roy=20Baron?= , Benno Lossin , Andreas Hindborg , Trevor Gross , linux-kernel@vger.kernel.org (open list) Subject: [RFC v3 22/33] rust: drm/kms: Add RawCrtcState::active() Date: Wed, 5 Mar 2025 17:59:38 -0500 Message-ID: <20250305230406.567126-23-lyude@redhat.com> In-Reply-To: <20250305230406.567126-1-lyude@redhat.com> References: <20250305230406.567126-1-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 10.30.177.4 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 50f5b68f4a3fe..99719c4e288e6 100644 --- a/rust/kernel/drm/kms/crtc.rs +++ b/rust/kernel/drm/kms/crtc.rs @@ -607,6 +607,14 @@ 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 {} -- 2.48.1