From patchwork Mon Nov 14 21:08:36 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andrew Jones X-Patchwork-Id: 694723 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from lists.gnu.org (lists.gnu.org [IPv6:2001:4830:134:3::11]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 3tHjvw1pzmz9t0v for ; Tue, 15 Nov 2016 08:14:52 +1100 (AEDT) Received: from localhost ([::1]:42705 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1c6OaX-00053Q-89 for incoming@patchwork.ozlabs.org; Mon, 14 Nov 2016 16:14:49 -0500 Received: from eggs.gnu.org ([2001:4830:134:3::10]:45383) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1c6OV4-0000Cx-DF for qemu-devel@nongnu.org; Mon, 14 Nov 2016 16:09:11 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1c6OV3-00022v-HR for qemu-devel@nongnu.org; Mon, 14 Nov 2016 16:09:10 -0500 Received: from mx1.redhat.com ([209.132.183.28]:58838) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1c6OV0-00021Z-6g; Mon, 14 Nov 2016 16:09:06 -0500 Received: from int-mx09.intmail.prod.int.phx2.redhat.com (int-mx09.intmail.prod.int.phx2.redhat.com [10.5.11.22]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 7ECA68123F; Mon, 14 Nov 2016 21:09:05 +0000 (UTC) Received: from kamzik.brq.redhat.com (kamzik.brq.redhat.com [10.34.1.143]) by int-mx09.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id uAEL8fjb014878; Mon, 14 Nov 2016 16:09:02 -0500 From: Andrew Jones To: kvm@vger.kernel.org, kvmarm@lists.cs.columbia.edu, qemu-devel@nongnu.org, qemu-arm@nongnu.org Date: Mon, 14 Nov 2016 22:08:36 +0100 Message-Id: <1479157719-31021-9-git-send-email-drjones@redhat.com> In-Reply-To: <1479157719-31021-1-git-send-email-drjones@redhat.com> References: <1479157719-31021-1-git-send-email-drjones@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.22 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.25]); Mon, 14 Nov 2016 21:09:05 +0000 (UTC) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 209.132.183.28 Subject: [Qemu-devel] [kvm-unit-tests PATCH v6 08/11] libcflat: add IS_ALIGNED() macro, and page sizes X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: peter.maydell@linaro.org, marc.zyngier@arm.com, andre.przywara@arm.com, Peter Xu , eric.auger@redhat.com, pbonzini@redhat.com, alex.bennee@linaro.org, christoffer.dall@linaro.org Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" From: Peter Xu These macros will be useful to do page alignment checks. Reviewed-by: Andre Przywara Signed-off-by: Peter Xu [drew: also added SZ_64K and changed to shifts] Signed-off-by: Andrew Jones Reviewed-by: Eric Auger --- v6: change to shifts [Alex] --- lib/libcflat.h | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/lib/libcflat.h b/lib/libcflat.h index 82005f5d014f..244e40a724be 100644 --- a/lib/libcflat.h +++ b/lib/libcflat.h @@ -33,6 +33,12 @@ #define __ALIGN_MASK(x, mask) (((x) + (mask)) & ~(mask)) #define __ALIGN(x, a) __ALIGN_MASK(x, (typeof(x))(a) - 1) #define ALIGN(x, a) __ALIGN((x), (a)) +#define IS_ALIGNED(x, a) (((x) & ((typeof(x))(a) - 1)) == 0) + +#define SZ_4K (1 << 12) +#define SZ_64K (1 << 16) +#define SZ_2M (1 << 21) +#define SZ_1G (1 << 30) typedef uint8_t u8; typedef int8_t s8;