From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:33308) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1c9aoe-0001eN-5v for qemu-devel@nongnu.org; Wed, 23 Nov 2016 11:54:37 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1c9aod-0000eY-EC for qemu-devel@nongnu.org; Wed, 23 Nov 2016 11:54:36 -0500 From: Andrew Jones Date: Wed, 23 Nov 2016 17:54:03 +0100 Message-Id: <20161123165406.32661-9-drjones@redhat.com> In-Reply-To: <20161123165406.32661-1-drjones@redhat.com> References: <20161123165406.32661-1-drjones@redhat.com> Subject: [Qemu-devel] [kvm-unit-tests PATCH v7 08/11] libcflat: add IS_ALIGNED() macro, and page sizes List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: kvm@vger.kernel.org, kvmarm@lists.cs.columbia.edu, qemu-devel@nongnu.org, qemu-arm@nongnu.org Cc: peter.maydell@linaro.org, marc.zyngier@arm.com, andre.przywara@arm.com, eric.auger@redhat.com, pbonzini@redhat.com, alex.bennee@linaro.org, christoffer.dall@linaro.org, Peter Xu From: Peter Xu These macros will be useful to do page alignment checks. Reviewed-by: Andre Przywara Reviewed-by: Eric Auger Signed-off-by: Peter Xu [drew: also added SZ_64K and changed to shifts] Signed-off-by: Andrew Jones --- 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 c3fa4f24c499..bdcc561ccafd 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; -- 2.9.3