From patchwork Tue Mar 27 04:37:24 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Michael Neuling X-Patchwork-Id: 891348 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=kvm-ppc-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=neuling.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 409JCc6QLLz9s5K for ; Tue, 27 Mar 2018 15:37:48 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1750800AbeC0Ehj (ORCPT ); Tue, 27 Mar 2018 00:37:39 -0400 Received: from ozlabs.org ([103.22.144.67]:33765 "EHLO ozlabs.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751078AbeC0Ehg (ORCPT ); Tue, 27 Mar 2018 00:37:36 -0400 Received: from localhost.localdomain (localhost [127.0.0.1]) by ozlabs.org (Postfix) with ESMTP id 409JCJ4V4qz9s1q; Tue, 27 Mar 2018 15:37:32 +1100 (AEDT) Received: by localhost.localdomain (Postfix, from userid 1000) id 74C4AEE78C5; Tue, 27 Mar 2018 15:37:31 +1100 (AEDT) From: Michael Neuling To: mpe@ellerman.id.au Cc: linuxppc-dev@lists.ozlabs.org, paulus@ozlabs.org, david@gibson.dropbear.id.au, npiggin@gmail.com, pedromfc@linux.vnet.ibm.com, kvm-ppc@vger.kernel.org, Ananth N Mavinakayanahalli Subject: [PATCH v3 8/8] powerpc: Disable DAWR in the base POWER9 CPU features Date: Tue, 27 Mar 2018 15:37:24 +1100 Message-Id: <20180327043724.13862-9-mikey@neuling.org> X-Mailer: git-send-email 2.14.1 In-Reply-To: <20180327043724.13862-1-mikey@neuling.org> References: <20180327043724.13862-1-mikey@neuling.org> Sender: kvm-ppc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm-ppc@vger.kernel.org Using the DAWR on POWER9 can cause xstops, hence we need to disable it. Signed-off-by: Michael Neuling --- arch/powerpc/include/asm/cputable.h | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/arch/powerpc/include/asm/cputable.h b/arch/powerpc/include/asm/cputable.h index a2c5c95882..79a206bcd4 100644 --- a/arch/powerpc/include/asm/cputable.h +++ b/arch/powerpc/include/asm/cputable.h @@ -463,9 +463,8 @@ static inline void cpu_feature_keys_init(void) { } CPU_FTR_DSCR | CPU_FTR_SAO | \ CPU_FTR_STCX_CHECKS_ADDRESS | CPU_FTR_POPCNTB | CPU_FTR_POPCNTD | \ CPU_FTR_CFAR | CPU_FTR_HVMODE | CPU_FTR_VMX_COPY | \ - CPU_FTR_DBELL | CPU_FTR_HAS_PPR | CPU_FTR_DAWR | \ - CPU_FTR_ARCH_207S | CPU_FTR_TM_COMP | CPU_FTR_ARCH_300 | \ - CPU_FTR_PKEY) + CPU_FTR_DBELL | CPU_FTR_HAS_PPR | CPU_FTR_ARCH_207S | \ + CPU_FTR_TM_COMP | CPU_FTR_ARCH_300 | CPU_FTR_PKEY) #define CPU_FTRS_POWER9_DD1 ((CPU_FTRS_POWER9 | CPU_FTR_POWER9_DD1) & \ (~CPU_FTR_SAO)) #define CPU_FTRS_POWER9_DD2_0 CPU_FTRS_POWER9