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=-11.2 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 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 BFA0FC4363A for ; Thu, 29 Oct 2020 16:16:24 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 3E6F92075E for ; Thu, 29 Oct 2020 16:16:24 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=kernel-dk.20150623.gappssmtp.com header.i=@kernel-dk.20150623.gappssmtp.com header.b="kZwkBKS6" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726374AbgJ2QQX (ORCPT ); Thu, 29 Oct 2020 12:16:23 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53556 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725859AbgJ2QQX (ORCPT ); Thu, 29 Oct 2020 12:16:23 -0400 Received: from mail-io1-xd41.google.com (mail-io1-xd41.google.com [IPv6:2607:f8b0:4864:20::d41]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 74FF7C0613CF for ; Thu, 29 Oct 2020 09:16:21 -0700 (PDT) Received: by mail-io1-xd41.google.com with SMTP id z5so4144317iob.1 for ; Thu, 29 Oct 2020 09:16:21 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel-dk.20150623.gappssmtp.com; s=20150623; h=to:from:subject:message-id:date:user-agent:mime-version :content-language:content-transfer-encoding; bh=1V5GLCZNybwNg87uu0YriGFVSE0ZjD9L+JX6iLbpcdI=; b=kZwkBKS6f2ZBSE1fGpGmhvgSiftzOvn4kEvPznxoDJxc9gtztrZ6V8UoXE4dgipppd /hLAmfJgw9tAq+4v8Nk93BcoPpkuN9jFpHpYhe8uI+vBPrEo+Xomcx7ULZD2cmPRdASz 6c9YAwpv2+fTGNjgyslfQzs3ryikCosV910k0UeHmvCoTdDuXo+4RmIeTy1QcYcJySfv TrCqt7EmCQCvH9X9B5G3V0LGPlBMko+/HplUtCoXGZWb7TLuiMdsjGVdycgTET0xmfSA 67/HxifNW9fUAnFXHmnjo4W+dfDuHW7bVnU7Zy4Sg4MhCKTYlSPo0/3t9NldXTl6CQpU UF3w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:to:from:subject:message-id:date:user-agent :mime-version:content-language:content-transfer-encoding; bh=1V5GLCZNybwNg87uu0YriGFVSE0ZjD9L+JX6iLbpcdI=; b=f5FUUF/HODrMW3hHFun9eWPHKpvULAkuiszpESkEPeISMZoT+4eHxbQn5tqFIBykIK MKEIFlX17MXkGPOeS3i/pSomBE0aCJnV+ivaxJoFtcfYoJX/aN1WqtW9kBPuqqZWqGWO jY9nTL0g6aw2JG9+Z559JkB/n6DWRjPbowrfc16CZPFDlBmQxoiz3o2l0GG7iYCn9iuk A7J/5UKNAmPvbJ6Er+HPj01K4B5wD3QLlMW/2KpZWU5wVds+U6+7cSfrX0QBbxklmWqV HGMLqwocHQdOU8OxqaWQEhLbAdSZsROCHQEVm2owCH+gwkul3npSmMYkTGBzJbvCdlbf e4ug== X-Gm-Message-State: AOAM530RWb/gO2G24BVBC1wyKFlBzxzLBKcmGzolwj9njhkKYdPtnHFO NXEc1rMTs2fmgek7TjeP23YL+ZzPm/5iWA== X-Google-Smtp-Source: ABdhPJylfHRg9Ct9W9BLj6ON9i6pE9QxxjpmL0adeP1lJ0IcKDporQcYl8yG/YJQnvl5DQEkZDZNHg== X-Received: by 2002:a5e:8f4c:: with SMTP id x12mr519830iop.140.1603988180660; Thu, 29 Oct 2020 09:16:20 -0700 (PDT) Received: from [192.168.1.30] ([65.144.74.34]) by smtp.gmail.com with ESMTPSA id p15sm2301963ioh.27.2020.10.29.09.16.20 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 29 Oct 2020 09:16:20 -0700 (PDT) To: Michal Simek , "linux-kernel@vger.kernel.org" From: Jens Axboe Subject: [PATCH] microblaze: add support for TIF_NOTIFY_SIGNAL Message-ID: Date: Thu, 29 Oct 2020 10:16:19 -0600 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0 MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Wire up TIF_NOTIFY_SIGNAL handling for microblaze. Cc: Michal Simek Signed-off-by: Jens Axboe --- 5.11 has support queued up for TIF_NOTIFY_SIGNAL, see this posting for details: https://lore.kernel.org/io-uring/20201026203230.386348-1-axboe@kernel.dk/ As part of that work, I'm adding TIF_NOTIFY_SIGNAL support to all archs, as that will enable a set of cleanups once all of them support it. I'm happy carrying this patch if need be, or it can be funelled through the arch tree. Let me know. arch/microblaze/include/asm/thread_info.h | 2 ++ arch/microblaze/kernel/signal.c | 3 ++- 2 files changed, 4 insertions(+), 1 deletion(-) diff --git a/arch/microblaze/include/asm/thread_info.h b/arch/microblaze/include/asm/thread_info.h index ad8e8fcb90d3..44f5ca331862 100644 --- a/arch/microblaze/include/asm/thread_info.h +++ b/arch/microblaze/include/asm/thread_info.h @@ -107,6 +107,7 @@ static inline struct thread_info *current_thread_info(void) #define TIF_NEED_RESCHED 3 /* rescheduling necessary */ /* restore singlestep on return to user mode */ #define TIF_SINGLESTEP 4 +#define TIF_NOTIFY_SIGNAL 5 /* signal notifications exist */ #define TIF_MEMDIE 6 /* is terminating due to OOM killer */ #define TIF_SYSCALL_AUDIT 9 /* syscall auditing active */ #define TIF_SECCOMP 10 /* secure computing */ @@ -119,6 +120,7 @@ static inline struct thread_info *current_thread_info(void) #define _TIF_SIGPENDING (1 << TIF_SIGPENDING) #define _TIF_NEED_RESCHED (1 << TIF_NEED_RESCHED) #define _TIF_SINGLESTEP (1 << TIF_SINGLESTEP) +#define _TIF_NOTIFY_SIGNAL (1 << TIF_NOTIFY_SIGNAL) #define _TIF_POLLING_NRFLAG (1 << TIF_POLLING_NRFLAG) #define _TIF_SYSCALL_AUDIT (1 << TIF_SYSCALL_AUDIT) #define _TIF_SECCOMP (1 << TIF_SECCOMP) diff --git a/arch/microblaze/kernel/signal.c b/arch/microblaze/kernel/signal.c index f11a0ccccabc..5a8d173d7b75 100644 --- a/arch/microblaze/kernel/signal.c +++ b/arch/microblaze/kernel/signal.c @@ -313,7 +313,8 @@ static void do_signal(struct pt_regs *regs, int in_syscall) asmlinkage void do_notify_resume(struct pt_regs *regs, int in_syscall) { - if (test_thread_flag(TIF_SIGPENDING)) + if (test_thread_flag(TIF_SIGPENDING) || + test_thread_flag(TIF_NOTIFY_SIGNAL)) do_signal(regs, in_syscall); if (test_thread_flag(TIF_NOTIFY_RESUME)) -- 2.29.0 -- Jens Axboe