From patchwork Tue Jan 12 17:01:40 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thomas Gleixner X-Patchwork-Id: 12014139 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=-15.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS 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 E18A3C433E0 for ; Tue, 12 Jan 2021 17:04:56 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 8983A23107 for ; Tue, 12 Jan 2021 17:04:56 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 8983A23107 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linutronix.de Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 33DD18D00FD; Tue, 12 Jan 2021 12:04:55 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 29F1C8D00F6; Tue, 12 Jan 2021 12:04:55 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 18FF28D00FD; Tue, 12 Jan 2021 12:04:55 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0083.hostedemail.com [216.40.44.83]) by kanga.kvack.org (Postfix) with ESMTP id E9E6F8D00F6 for ; Tue, 12 Jan 2021 12:04:54 -0500 (EST) Received: from smtpin17.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay01.hostedemail.com (Postfix) with ESMTP id A7D6C180AD80F for ; Tue, 12 Jan 2021 17:04:54 +0000 (UTC) X-FDA: 77697747708.17.ear26_5711d0d27517 Received: from filter.hostedemail.com (10.5.16.251.rfc1918.com [10.5.16.251]) by smtpin17.hostedemail.com (Postfix) with ESMTP id 8305E180D0185 for ; Tue, 12 Jan 2021 17:04:54 +0000 (UTC) X-HE-Tag: ear26_5711d0d27517 X-Filterd-Recvd-Size: 3115 Received: from galois.linutronix.de (Galois.linutronix.de [193.142.43.55]) by imf47.hostedemail.com (Postfix) with ESMTP for ; Tue, 12 Jan 2021 17:04:53 +0000 (UTC) Message-Id: <20210112170411.281464308@linutronix.de> DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1610471092; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: references:references; bh=lCQcsUW6BG2TViN9PATPu0nvlehpGiocV+x+/eINNhI=; b=iOrQ2yzL7qHCBZMxPC7End9fO2OxSIYpXRwgowQ+kbHLNZtaezvOR94fNwfVroCra3r4Ew BP1Ix24/uzar89ES2eJRfzvUGDOwogScWlMzV76pJo8FD6DZNSP85cyJJUT5Z/SvHDfVxQ d76g/BhCGzVnTM+e8iRAh+j1uaqXXRNdD/M6HzdNWRAf2nn3Ax/9PBrMTnOwDKJrIpAZif inUKRshmheImrOw6IypO8IVb813XGgw6SFS/SebA5YIKRivqRd8RvMNd/pr9H2NbPUqT8r GASetIkWO4dF+yELYnO3NATQJmWYI5uCS07afeSQj/9MjvMUb41Lwa0JFXCYMg== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1610471092; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: references:references; bh=lCQcsUW6BG2TViN9PATPu0nvlehpGiocV+x+/eINNhI=; b=CxIH9jkBW11gEiftSavoeDam6PfkbYmCUt93JwwJEGwDeGCrbr+M/BpvsPEseuYsWR26v1 MLveZEz3EE/eCIDQ== Date: Tue, 12 Jan 2021 18:01:40 +0100 From: Thomas Gleixner To: LKML Cc: Andrew Morton , linux-mm@kvack.org, Peter Zijlstra , Michael Ellerman , linuxppc-dev@lists.ozlabs.org, Andreas Larsson , "David S. Miller" , sparclinux@vger.kernel.org, Paul Cercueil , Thomas Bogendoerfer Subject: [patch 4/4] powerpc/mm/highmem: Use __set_pte_at() for kmap_local() References: <20210112170136.078559026@linutronix.de> MIME-Version: 1.0 Content-transfer-encoding: 8-bit X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: The original PowerPC highmem mapping function used __set_pte_at() to denote that the mapping is per CPU. This got lost with the conversion to the generic implementation. Override the default map function. Fixes: 47da42b27a56 ("powerpc/mm/highmem: Switch to generic kmap atomic") Signed-off-by: Thomas Gleixner Cc: Michael Ellerman Cc: linuxppc-dev@lists.ozlabs.org --- arch/powerpc/include/asm/highmem.h | 2 ++ 1 file changed, 2 insertions(+) --- a/arch/powerpc/include/asm/highmem.h +++ b/arch/powerpc/include/asm/highmem.h @@ -58,6 +58,8 @@ extern pte_t *pkmap_page_table; #define flush_cache_kmaps() flush_cache_all() +#define arch_kmap_local_set_pte(mm, vaddr, ptep, ptev) \ + __set_pte_at(mm, vaddr, ptep, ptev, 1) #define arch_kmap_local_post_map(vaddr, pteval) \ local_flush_tlb_page(NULL, vaddr) #define arch_kmap_local_post_unmap(vaddr) \