From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753427AbbATJ5m (ORCPT ); Tue, 20 Jan 2015 04:57:42 -0500 Received: from pegase1.c-s.fr ([93.17.236.30]:40451 "EHLO mailhub1.si.c-s.fr" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752959AbbATJ5g (ORCPT ); Tue, 20 Jan 2015 04:57:36 -0500 From: Christophe Leroy To: Benjamin Herrenschmidt , Paul Mackerras , Michael Ellerman , scottwood@freescale.com CC: linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, Joakim Tjernlund Subject: [PATCH v2 01/11] powerpc/8xx: remove remaining unnecessary code in FixupDAR Message-Id: <20150120095733.D4A431A5E82@localhost.localdomain> Date: Tue, 20 Jan 2015 10:57:33 +0100 (CET) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Since commit 33fb845a6f01 ("powerpc/8xx: Don't use MD_TWC for walk"), MD_EPN and MD_TWC are not writen anymore in FixupDAR so saving r3 has become useless. Signed-off-by: Christophe Leroy --- v2: no change arch/powerpc/kernel/head_8xx.S | 6 ------ 1 file changed, 6 deletions(-) diff --git a/arch/powerpc/kernel/head_8xx.S b/arch/powerpc/kernel/head_8xx.S index 3d4b8ee..79b8a23 100644 --- a/arch/powerpc/kernel/head_8xx.S +++ b/arch/powerpc/kernel/head_8xx.S @@ -532,9 +532,6 @@ DARFixed:/* Return from dcbx instruction bug workaround */ /* define if you don't want to use self modifying code */ #define NO_SELF_MODIFYING_CODE FixupDAR:/* Entry point for dcbx workaround. */ -#ifdef CONFIG_8xx_CPU6 - mtspr SPRN_DAR, r3 -#endif mtspr SPRN_SPRG_SCRATCH2, r10 /* fetch instruction from memory. */ mfspr r10, SPRN_SRR0 @@ -551,9 +548,6 @@ FixupDAR:/* Entry point for dcbx workaround. */ /* Extract level 2 index */ rlwinm r11, r11, 32 - (PAGE_SHIFT - 2), 32 - PAGE_SHIFT, 29 lwzx r11, r10, r11 /* Get the pte */ -#ifdef CONFIG_8xx_CPU6 - mfspr r3, SPRN_DAR -#endif /* concat physical page address(r11) and page offset(r10) */ mfspr r10, SPRN_SRR0 rlwimi r11, r10, 0, 32 - PAGE_SHIFT, 31 -- 2.1.0