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=-13.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED 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 38121C2D0E4 for ; Tue, 24 Nov 2020 15:24:58 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id DBF01206D5 for ; Tue, 24 Nov 2020 15:24:57 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2388854AbgKXPY5 (ORCPT ); Tue, 24 Nov 2020 10:24:57 -0500 Received: from pegase1.c-s.fr ([93.17.236.30]:55241 "EHLO pegase1.c-s.fr" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730546AbgKXPY4 (ORCPT ); Tue, 24 Nov 2020 10:24:56 -0500 Received: from localhost (mailhub1-int [192.168.12.234]) by localhost (Postfix) with ESMTP id 4CgSW93hp1z9v0d8; Tue, 24 Nov 2020 16:24:53 +0100 (CET) X-Virus-Scanned: Debian amavisd-new at c-s.fr Received: from pegase1.c-s.fr ([192.168.12.234]) by localhost (pegase1.c-s.fr [192.168.12.234]) (amavisd-new, port 10024) with ESMTP id xRZ94Le8KDIF; Tue, 24 Nov 2020 16:24:53 +0100 (CET) Received: from messagerie.si.c-s.fr (messagerie.si.c-s.fr [192.168.25.192]) by pegase1.c-s.fr (Postfix) with ESMTP id 4CgSW92pXqz9v0d5; Tue, 24 Nov 2020 16:24:53 +0100 (CET) Received: from localhost (localhost [127.0.0.1]) by messagerie.si.c-s.fr (Postfix) with ESMTP id EA2998B7B3; Tue, 24 Nov 2020 16:24:54 +0100 (CET) X-Virus-Scanned: amavisd-new at c-s.fr Received: from messagerie.si.c-s.fr ([127.0.0.1]) by localhost (messagerie.si.c-s.fr [127.0.0.1]) (amavisd-new, port 10023) with ESMTP id 3EGNtlK8EZU6; Tue, 24 Nov 2020 16:24:54 +0100 (CET) Received: from po17688vm.idsi0.si.c-s.fr (unknown [192.168.4.90]) by messagerie.si.c-s.fr (Postfix) with ESMTP id AC1B18B7AF; Tue, 24 Nov 2020 16:24:54 +0100 (CET) Received: by po17688vm.idsi0.si.c-s.fr (Postfix, from userid 0) id 446EF668E2; Tue, 24 Nov 2020 15:24:54 +0000 (UTC) Message-Id: From: Christophe Leroy Subject: [PATCH v1 1/6] powerpc/8xx: DEBUG_PAGEALLOC doesn't require an ITLB miss exception handler To: Benjamin Herrenschmidt , Paul Mackerras , Michael Ellerman Cc: linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org Date: Tue, 24 Nov 2020 15:24:54 +0000 (UTC) Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Since commit e611939fc8ec ("powerpc/mm: Ensure change_page_attr() doesn't invalidate pinned TLBs"), pinned TLBs are not anymore invalidated by __kernel_map_pages() when CONFIG_DEBUG_PAGEALLOC is selected. Remove the dependency on CONFIG_DEBUG_PAGEALLOC. Signed-off-by: Christophe Leroy --- arch/powerpc/kernel/head_8xx.S | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/arch/powerpc/kernel/head_8xx.S b/arch/powerpc/kernel/head_8xx.S index ee0bfebc375f..66ee62f30d36 100644 --- a/arch/powerpc/kernel/head_8xx.S +++ b/arch/powerpc/kernel/head_8xx.S @@ -47,8 +47,7 @@ * - Either we have modules * - Or we have not pinned the first 8M */ -#if defined(CONFIG_MODULES) || !defined(CONFIG_PIN_TLB_TEXT) || \ - defined(CONFIG_DEBUG_PAGEALLOC) +#if defined(CONFIG_MODULES) || !defined(CONFIG_PIN_TLB_TEXT) #define ITLB_MISS_KERNEL 1 #endif -- 2.25.0 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=-13.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=unavailable 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 6C43DC2D0E4 for ; Tue, 24 Nov 2020 15:30:09 +0000 (UTC) Received: from lists.ozlabs.org (lists.ozlabs.org [203.11.71.2]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 5508520679 for ; Tue, 24 Nov 2020 15:30:08 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 5508520679 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=csgroup.eu Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Received: from bilbo.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3]) by lists.ozlabs.org (Postfix) with ESMTP id 4CgSd81dl4zDqZx for ; Wed, 25 Nov 2020 02:30:04 +1100 (AEDT) Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=csgroup.eu (client-ip=93.17.236.30; helo=pegase1.c-s.fr; envelope-from=christophe.leroy@csgroup.eu; receiver=) Authentication-Results: lists.ozlabs.org; dmarc=none (p=none dis=none) header.from=csgroup.eu Received: from pegase1.c-s.fr (pegase1.c-s.fr [93.17.236.30]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 4CgSWK5lCtzDqZl for ; Wed, 25 Nov 2020 02:24:59 +1100 (AEDT) Received: from localhost (mailhub1-int [192.168.12.234]) by localhost (Postfix) with ESMTP id 4CgSW93hp1z9v0d8; Tue, 24 Nov 2020 16:24:53 +0100 (CET) X-Virus-Scanned: Debian amavisd-new at c-s.fr Received: from pegase1.c-s.fr ([192.168.12.234]) by localhost (pegase1.c-s.fr [192.168.12.234]) (amavisd-new, port 10024) with ESMTP id xRZ94Le8KDIF; Tue, 24 Nov 2020 16:24:53 +0100 (CET) Received: from messagerie.si.c-s.fr (messagerie.si.c-s.fr [192.168.25.192]) by pegase1.c-s.fr (Postfix) with ESMTP id 4CgSW92pXqz9v0d5; Tue, 24 Nov 2020 16:24:53 +0100 (CET) Received: from localhost (localhost [127.0.0.1]) by messagerie.si.c-s.fr (Postfix) with ESMTP id EA2998B7B3; Tue, 24 Nov 2020 16:24:54 +0100 (CET) X-Virus-Scanned: amavisd-new at c-s.fr Received: from messagerie.si.c-s.fr ([127.0.0.1]) by localhost (messagerie.si.c-s.fr [127.0.0.1]) (amavisd-new, port 10023) with ESMTP id 3EGNtlK8EZU6; Tue, 24 Nov 2020 16:24:54 +0100 (CET) Received: from po17688vm.idsi0.si.c-s.fr (unknown [192.168.4.90]) by messagerie.si.c-s.fr (Postfix) with ESMTP id AC1B18B7AF; Tue, 24 Nov 2020 16:24:54 +0100 (CET) Received: by po17688vm.idsi0.si.c-s.fr (Postfix, from userid 0) id 446EF668E2; Tue, 24 Nov 2020 15:24:54 +0000 (UTC) Message-Id: From: Christophe Leroy Subject: [PATCH v1 1/6] powerpc/8xx: DEBUG_PAGEALLOC doesn't require an ITLB miss exception handler To: Benjamin Herrenschmidt , Paul Mackerras , Michael Ellerman Date: Tue, 24 Nov 2020 15:24:54 +0000 (UTC) X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" Since commit e611939fc8ec ("powerpc/mm: Ensure change_page_attr() doesn't invalidate pinned TLBs"), pinned TLBs are not anymore invalidated by __kernel_map_pages() when CONFIG_DEBUG_PAGEALLOC is selected. Remove the dependency on CONFIG_DEBUG_PAGEALLOC. Signed-off-by: Christophe Leroy --- arch/powerpc/kernel/head_8xx.S | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/arch/powerpc/kernel/head_8xx.S b/arch/powerpc/kernel/head_8xx.S index ee0bfebc375f..66ee62f30d36 100644 --- a/arch/powerpc/kernel/head_8xx.S +++ b/arch/powerpc/kernel/head_8xx.S @@ -47,8 +47,7 @@ * - Either we have modules * - Or we have not pinned the first 8M */ -#if defined(CONFIG_MODULES) || !defined(CONFIG_PIN_TLB_TEXT) || \ - defined(CONFIG_DEBUG_PAGEALLOC) +#if defined(CONFIG_MODULES) || !defined(CONFIG_PIN_TLB_TEXT) #define ITLB_MISS_KERNEL 1 #endif -- 2.25.0