From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id A5F77C282DA for ; Thu, 11 Apr 2019 11:46:59 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 80DAF2133D for ; Thu, 11 Apr 2019 11:46:59 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726812AbfDKLq7 (ORCPT ); Thu, 11 Apr 2019 07:46:59 -0400 Received: from bilbo.ozlabs.org ([203.11.71.1]:48969 "EHLO ozlabs.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726629AbfDKLq6 (ORCPT ); Thu, 11 Apr 2019 07:46:58 -0400 Received: by ozlabs.org (Postfix, from userid 1034) id 44fzlN6W1gz9sNJ; Thu, 11 Apr 2019 21:46:56 +1000 (AEST) From: Michael Ellerman To: stable@vger.kernel.org, gregkh@linuxfoundation.org Cc: linuxppc-dev@ozlabs.org, diana.craciun@nxp.com, msuchanek@suse.de, christophe.leroy@c-s.fr Subject: [PATCH stable v4.9 14/35] powerpc/64: Call setup_barrier_nospec() from setup_arch() Date: Thu, 11 Apr 2019 21:46:09 +1000 Message-Id: <20190411114630.4042-15-mpe@ellerman.id.au> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190411114630.4042-1-mpe@ellerman.id.au> References: <20190411114630.4042-1-mpe@ellerman.id.au> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org commit af375eefbfb27cbb5b831984e66d724a40d26b5c upstream. Currently we require platform code to call setup_barrier_nospec(). But if we add an empty definition for the !CONFIG_PPC_BARRIER_NOSPEC case then we can call it in setup_arch(). Signed-off-by: Diana Craciun Signed-off-by: Michael Ellerman --- arch/powerpc/include/asm/setup.h | 4 ++++ arch/powerpc/kernel/setup-common.c | 2 ++ arch/powerpc/platforms/powernv/setup.c | 1 - arch/powerpc/platforms/pseries/setup.c | 1 - 4 files changed, 6 insertions(+), 2 deletions(-) diff --git a/arch/powerpc/include/asm/setup.h b/arch/powerpc/include/asm/setup.h index 38525bd2ed65..d3e9da62d029 100644 --- a/arch/powerpc/include/asm/setup.h +++ b/arch/powerpc/include/asm/setup.h @@ -51,7 +51,11 @@ enum l1d_flush_type { void setup_rfi_flush(enum l1d_flush_type, bool enable); void do_rfi_flush_fixups(enum l1d_flush_type types); +#ifdef CONFIG_PPC_BARRIER_NOSPEC void setup_barrier_nospec(void); +#else +static inline void setup_barrier_nospec(void) { }; +#endif void do_barrier_nospec_fixups(bool enable); extern bool barrier_nospec_enabled; diff --git a/arch/powerpc/kernel/setup-common.c b/arch/powerpc/kernel/setup-common.c index bf0f712ac0e0..d5a128f54537 100644 --- a/arch/powerpc/kernel/setup-common.c +++ b/arch/powerpc/kernel/setup-common.c @@ -918,6 +918,8 @@ void __init setup_arch(char **cmdline_p) if (ppc_md.setup_arch) ppc_md.setup_arch(); + setup_barrier_nospec(); + paging_init(); /* Initialize the MMU context management stuff. */ diff --git a/arch/powerpc/platforms/powernv/setup.c b/arch/powerpc/platforms/powernv/setup.c index eb5464648810..17203abf38e8 100644 --- a/arch/powerpc/platforms/powernv/setup.c +++ b/arch/powerpc/platforms/powernv/setup.c @@ -123,7 +123,6 @@ static void pnv_setup_rfi_flush(void) security_ftr_enabled(SEC_FTR_L1D_FLUSH_HV)); setup_rfi_flush(type, enable); - setup_barrier_nospec(); } static void __init pnv_setup_arch(void) diff --git a/arch/powerpc/platforms/pseries/setup.c b/arch/powerpc/platforms/pseries/setup.c index 2b2759c98c7e..91ade7755823 100644 --- a/arch/powerpc/platforms/pseries/setup.c +++ b/arch/powerpc/platforms/pseries/setup.c @@ -525,7 +525,6 @@ void pseries_setup_rfi_flush(void) security_ftr_enabled(SEC_FTR_L1D_FLUSH_PR); setup_rfi_flush(types, enable); - setup_barrier_nospec(); } static void __init pSeries_setup_arch(void) -- 2.20.1