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=-4.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_GIT 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 5FD53C433E0 for ; Sat, 27 Jun 2020 13:58:17 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 3FB7521707 for ; Sat, 27 Jun 2020 13:58:17 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1593266297; bh=zFFmAxQIJ282vX1U5MTEGpJFoSCC8e6dQDRcPHERdds=; h=From:To:Cc:Subject:Date:List-ID:From; b=JFlzZtmbti5Yaxh9yygNhkVBlN23zGlNynoPKeRrWHZD1RetKHIB0koII0oFXE0R9 zDF4lBvDHxbOLDmENRwzqjq37c+s9HcaGT/KweCIrCxbqKg89hSoUX5hZ6TKVTyjRT Z/5ZVBFpUrCpUsu7HBUlN3IdQizg0ZB5cTVdaWH8= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726691AbgF0N6R (ORCPT ); Sat, 27 Jun 2020 09:58:17 -0400 Received: from mail.kernel.org ([198.145.29.99]:57570 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725850AbgF0N6P (ORCPT ); Sat, 27 Jun 2020 09:58:15 -0400 Received: from localhost.localdomain (unknown [89.208.247.74]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id A6A9D2158C; Sat, 27 Jun 2020 13:58:12 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1593266295; bh=zFFmAxQIJ282vX1U5MTEGpJFoSCC8e6dQDRcPHERdds=; h=From:To:Cc:Subject:Date:From; b=yAESvf8Gfcairgg2gf6m4SeyFniwS9u435AovnO6RhjbHX242Bg6ekMEv02L/JvTq 92lemG1EhMpXQZFM6LRiRg4tk+BihGTb+JVWiAHrLwNY0xdjo3MHF7bE4Oszig/ANe +dIZzzaGJbpCu2PBeWX7wUqKuYMbfdSTJFeYjGfs= From: guoren@kernel.org To: palmerdabbelt@google.com, paul.walmsley@sifive.com, anup@brainfault.org, greentime.hu@sifive.com, zong.li@sifive.com, aou@eecs.berkeley.edu, tglx@linutronix.de, tycho@tycho.ws, nickhu@andestech.com Cc: linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org, linux-csky@vger.kernel.org, Guo Ren Subject: [PATCH V2 0/3] riscv: Enable LOCKDEP Date: Sat, 27 Jun 2020 13:57:05 +0000 Message-Id: <1593266228-61125-1-git-send-email-guoren@kernel.org> X-Mailer: git-send-email 2.7.4 Sender: linux-csky-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-csky@vger.kernel.org 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(-) -- 2.7.4