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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 407E8EB64D8 for ; Wed, 14 Jun 2023 04:52:27 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S242230AbjFNEw0 (ORCPT ); Wed, 14 Jun 2023 00:52:26 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40636 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231720AbjFNEwY (ORCPT ); Wed, 14 Jun 2023 00:52:24 -0400 Received: from mail-pl1-x629.google.com (mail-pl1-x629.google.com [IPv6:2607:f8b0:4864:20::629]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5CD6F183 for ; Tue, 13 Jun 2023 21:52:23 -0700 (PDT) Received: by mail-pl1-x629.google.com with SMTP id d9443c01a7336-1b4f8523197so3475685ad.1 for ; Tue, 13 Jun 2023 21:52:23 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20221208; t=1686718342; x=1689310342; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=YHHOxlInWG/EMNSSTIpmL8pTXVUvf1wMI3WxkD872/o=; b=J+TxTDiJTPboucEa+tW6hFc/DHBLo/YBJMqjafgFNTyxWcBTYOfCddFzS73N91Pryz AZC9GiIHnAE77ICMNwi9m/8hPSAMGDWHzxekljBgoQhxrxTqhlkDuUDWptVLAP9N+hXD d4hZgmTdwLqORB6UgGJMdAfI3Ussb1CrfS9MDORFb8jjQHpGWtGJrGDDAHSaFiF+MWB0 sgeS1cnJd7eZgGyFuIa68zMCoUI/qvyENlyYEnTyoES/74YCcea1Csc6oRiqHkxIgjj5 uEFHR4NYXEe/nLzXsAgv+GzTY/FVXeWyARwUoGSyoE5vBlvAqS3nPHy7KB2X8C99bfrY 3QeQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1686718342; x=1689310342; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=YHHOxlInWG/EMNSSTIpmL8pTXVUvf1wMI3WxkD872/o=; b=Avbfy4MgdHj5jfkmqtGycP5upaPYE6djEeORrTlkdsJE5RLmh2clYHXbZAx5gzReyT /NOCTqZzGioNJbOvDVYQkbujghyz5WHBr2YhftsaGTeJIs0RqJC2l+/qBtpMke3wMifp YA/pLsWtFg8cV6UJDStT2iplIV+ifgD/6tvmgLBgHzgh5O96YmVpJsNATbUc/hK/aLbh xY0uo7u5zktMNGthz8qnD24DqhwDzSB4MYg8qpkcartjdSUltWCuSrCHxU0VrVJ3iWlw qs2SY7Q6gKqmBj+Fg6CVm6B+XWjJNlwzUMjl1zKmObiyKOZokQ1vybKc0gvdKMzzXTRF 8how== X-Gm-Message-State: AC+VfDwipWdXkv6CbGku2WAAfKbVpoXY2I3IS2UIooM1HffJr16l4dy2 Rq24N+cLrx9b/RsAOnmDMOx1/Tk/XCs= X-Google-Smtp-Source: ACHHUZ65ef1Xsw+ITW3IYqM56xZ/vWXi6JSmTwZRL9/AA5V1Q2lBTS5ktzq3TptEROWweQPg7ksz5A== X-Received: by 2002:a17:902:e892:b0:1b2:3e9f:69d1 with SMTP id w18-20020a170902e89200b001b23e9f69d1mr733076plg.18.1686718342244; Tue, 13 Jun 2023 21:52:22 -0700 (PDT) Received: from octofox.hsd1.ca.comcast.net ([2601:641:401:1d20:bf5f:2e99:78f2:6007]) by smtp.gmail.com with ESMTPSA id z18-20020a170903019200b001acad86ebc5sm11089790plg.33.2023.06.13.21.52.21 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 13 Jun 2023 21:52:21 -0700 (PDT) From: Max Filippov To: linux-kernel@vger.kernel.org Cc: Chris Zankel , Max Filippov Subject: [PATCH 0/4] xtensa: add load/store exception handler Date: Tue, 13 Jun 2023 21:52:08 -0700 Message-Id: <20230614045212.2534746-1-jcmvbkbc@gmail.com> X-Mailer: git-send-email 2.30.2 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello, this series rearranges unaligned exception handler and adds load/store exception handler that allows transparent 1- and 2-byte wide reads from memory attached to an instruction bus of an xtensa core. Max Filippov (4): xtensa: move early_trap_init from kasan_early_init to init_arch xtensa: always install slow handler for unaligned access exception xtensa: rearrange unaligned exception handler xtensa: add load/store exception handler arch/xtensa/Kconfig | 12 ++ arch/xtensa/include/asm/traps.h | 7 + arch/xtensa/kernel/align.S | 256 ++++++++++++++++++++++---------- arch/xtensa/kernel/setup.c | 7 + arch/xtensa/kernel/traps.c | 27 +++- arch/xtensa/mm/kasan_init.c | 2 - 6 files changed, 221 insertions(+), 90 deletions(-) -- 2.30.2