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=-1.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=no 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 061ABC433E0 for ; Thu, 9 Jul 2020 23:15:46 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id D329F2070E for ; Thu, 9 Jul 2020 23:15:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1594336545; bh=WKp2RVFe68SGsfy7Hqg46eACLbZJztj8u5UjJnydzJw=; h=References:In-Reply-To:From:Date:Subject:To:Cc:List-ID:From; b=xNA6qEfrbh2fKaYOEICJwgzBQjvJQzJqw/TTVFKjklnM3aJnoE6IkpQqjc2YQdquR 7P4ifA4HL/61PK68SYheqSFO9MGJgWyS4w0cezINbGqJ3KGOY2lyMf+RAifEd09GrF 1BHxWq3agksKhvuN/G19YkFs8VyrM7WjbhSnAl1Y= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726756AbgGIXPp (ORCPT ); Thu, 9 Jul 2020 19:15:45 -0400 Received: from mail.kernel.org ([198.145.29.99]:42572 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726311AbgGIXPp (ORCPT ); Thu, 9 Jul 2020 19:15:45 -0400 Received: from mail-lj1-f180.google.com (mail-lj1-f180.google.com [209.85.208.180]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 9373420786; Thu, 9 Jul 2020 23:15:44 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1594336544; bh=WKp2RVFe68SGsfy7Hqg46eACLbZJztj8u5UjJnydzJw=; h=References:In-Reply-To:From:Date:Subject:To:Cc:From; b=sTKNHyrGxjZHVmElPsUrMB0oPbGEmh5sIBbuCWoItrDYOtZOQtKBzRCD1UOwRW0ps xYuzzensHJN29VXkbSU6m244+1lhHoeEjAUc8IQj6dY7k1sZULyLeqTvV0ZhOND5I2 qIvmbbAXmhQevnKbX//nYKBoVOqX97awD/JvDNdA= Received: by mail-lj1-f180.google.com with SMTP id h19so4255625ljg.13; Thu, 09 Jul 2020 16:15:44 -0700 (PDT) X-Gm-Message-State: AOAM532uWMyOy5m3fbk7zDok68KOihMBZRyldLWzAHuloYpDFEvb4KkP U8SjEndGk57z1Lt/5BO+kC3sQNO0yZBP2V3UvjM= X-Google-Smtp-Source: ABdhPJwP3mup+JqlbZ3i4TpJbfsI0x3PxwcNYP4Z+8OXIGKrTQvFVgXB2+LnS3GVk56FcdbCumxmhbXp3nvJtI9dPx4= X-Received: by 2002:a05:651c:111:: with SMTP id a17mr16456695ljb.265.1594336542920; Thu, 09 Jul 2020 16:15:42 -0700 (PDT) MIME-Version: 1.0 References: <1593266228-61125-1-git-send-email-guoren@kernel.org> In-Reply-To: From: Guo Ren Date: Fri, 10 Jul 2020 07:15:31 +0800 X-Gmail-Original-Message-ID: Message-ID: Subject: Re: [PATCH V2 0/3] riscv: Enable LOCKDEP To: Palmer Dabbelt Cc: Paul Walmsley , Anup Patel , Greentime Hu , Zong Li , Albert Ou , Thomas Gleixner , Tycho Andersen , Nick Hu , linux-riscv , Linux Kernel Mailing List , linux-csky@vger.kernel.org, Guo Ren Content-Type: text/plain; charset="UTF-8" Sender: linux-csky-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-csky@vger.kernel.org Thank you, Palmer On Fri, Jul 10, 2020 at 6:06 AM Palmer Dabbelt wrote: > > On Sat, 27 Jun 2020 06:57:05 PDT (-0700), guoren@kernel.org wrote: > > From: Guo Ren > > > > Lockdep is needed by proving the spinlocks and rwlocks. To support it, > > we need to add TRACE_IRQFLAGS codes in kernel/entry.S. These patches > > follow Documentation/irqflags-tracing.txt. > > > > Fixup 2 bugs that block the lockdep implementation. > > > > --- > > Changes in v2 > > - Remove sX regs recovery codes which are unnecessary, because > > callee will handle them. Thx Greentime :) > > > > - Move "restore a0 - a7" to handle_syscall, but if _TIF_SYSCALL_WORK > > is set, "restore a1 - a7" is still duplicated. I prefer a C wrapper > > for syscall. > > > > Guo Ren (2): > > riscv: Fixup static_obj() fail > > riscv: Enable LOCKDEP_SUPPORT & fixup TRACE_IRQFLAGS_SUPPORT > > > > Zong Li (1): > > riscv: Fixup lockdep_assert_held with wrong param cpu_running > > > > arch/riscv/Kconfig | 3 +++ > > arch/riscv/kernel/entry.S | 33 ++++++++++++++++++++++++++++++++- > > arch/riscv/kernel/smpboot.c | 1 - > > arch/riscv/kernel/vmlinux.lds.S | 2 +- > > 4 files changed, 36 insertions(+), 3 deletions(-) > > These are on for-next. As far as I can tell lockdep is working, but I'm just > doing some simple boot tests. > > Thanks! -- Best Regards Guo Ren ML: https://lore.kernel.org/linux-csky/