From patchwork Wed Jun 11 10:33:46 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alexander Graf X-Patchwork-Id: 358601 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id CDB831400EA for ; Wed, 11 Jun 2014 20:34:08 +1000 (EST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754875AbaFKKd6 (ORCPT ); Wed, 11 Jun 2014 06:33:58 -0400 Received: from cantor2.suse.de ([195.135.220.15]:51925 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755043AbaFKKd4 (ORCPT ); Wed, 11 Jun 2014 06:33:56 -0400 Received: from relay2.suse.de (charybdis-ext.suse.de [195.135.220.254]) by mx2.suse.de (Postfix) with ESMTP id 762B8AD57; Wed, 11 Jun 2014 10:33:52 +0000 (UTC) From: Alexander Graf To: kvm-ppc@vger.kernel.org Cc: kvm@vger.kernel.org, anton@samba.org, Benjamin Herrenschmidt Subject: [PATCH 1/6] PPC: Add asm helpers for BE 32bit load/store Date: Wed, 11 Jun 2014 12:33:46 +0200 Message-Id: <1402482831-8941-2-git-send-email-agraf@suse.de> X-Mailer: git-send-email 1.8.1.4 In-Reply-To: <1402482831-8941-1-git-send-email-agraf@suse.de> References: <1402482831-8941-1-git-send-email-agraf@suse.de> Sender: kvm-ppc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm-ppc@vger.kernel.org From assembly code we might not only have to explicitly BE access 64bit values, but sometimes also 32bit ones. Add helpers that allow for easy use of lwzx/stwx in their respective byte-reverse or native form. Signed-off-by: Alexander Graf CC: Benjamin Herrenschmidt --- arch/powerpc/include/asm/asm-compat.h | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/arch/powerpc/include/asm/asm-compat.h b/arch/powerpc/include/asm/asm-compat.h index 4b237aa..21164ff 100644 --- a/arch/powerpc/include/asm/asm-compat.h +++ b/arch/powerpc/include/asm/asm-compat.h @@ -34,10 +34,14 @@ #define PPC_MIN_STKFRM 112 #ifdef __BIG_ENDIAN__ +#define LWZX_BE stringify_in_c(lwzx) #define LDX_BE stringify_in_c(ldx) +#define STDX_BE stringify_in_c(stwx) #define STDX_BE stringify_in_c(stdx) #else +#define LWZX_BE stringify_in_c(lwbrx) #define LDX_BE stringify_in_c(ldbrx) +#define STWX_BE stringify_in_c(stwbrx) #define STDX_BE stringify_in_c(stdbrx) #endif