From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759857Ab3B0DJi (ORCPT ); Tue, 26 Feb 2013 22:09:38 -0500 Received: from mail.windriver.com ([147.11.1.11]:44487 "EHLO mail.windriver.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755334Ab3B0DJg (ORCPT ); Tue, 26 Feb 2013 22:09:36 -0500 From: Tiejun Chen To: , CC: , , Subject: [v3][PATCH 0/6] powerpc/book3e: make kgdb to work well Date: Wed, 27 Feb 2013 11:09:22 +0800 Message-ID: <1361934568-31989-1-git-send-email-tiejun.chen@windriver.com> X-Mailer: git-send-email 1.7.9.5 MIME-Version: 1.0 Content-Type: text/plain Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This patchset is used to support kgdb/gdb on book3e. Validated on p4080ds and p5040ds with test single step and breakpoint v3: * make work when enable CONFIG_RELOCATABLE * fix one typo in patch, "powerpc/book3e: store critical/machine/debug exception thread info": ld r1,PACAKSAVE(r13); -> ld r14,PACAKSAVE(r13); * remove copying the thread_info since booke and book3e always copy the thead_info now when we enter the debug exception, and so drop the v2 patch, "book3e/kgdb: Fix a single stgep case of lazy IRQ" v2: * Make sure we cover CONFIG_PPC_BOOK3E_64 safely * Use LOAD_REG_IMMEDIATE() to load properly the value of the constant expression in load debug exception stack * Copy thread infor form the kernel stack coming from usr * Rebase latest powerpc git tree v1: * Copy thread info only when we are from !user mode since we'll get kernel stack coming from usr directly. * remove save/restore EX_R14/EX_R15 since DBG_EXCEPTION_PROLOG already covered this. * use CURRENT_THREAD_INFO() conveniently to get thread. * fix some typos * add a patch to make sure gdb can generate a single step properly to invoke a kgdb state. * add a patch to if we need to replay an interrupt, we shouldn't restore that previous backup thread info to make sure we can replay an interrupt lately with a proper thread info. * rebase latest powerpc git tree v0: This patchset is used to support kgdb for book3e. ------ Tiejun Chen (6): powerpc/book3e: load critical/machine/debug exception stack powerpc/book3e: store critical/machine/debug exception thread info book3e/kgdb: update thread's dbcr0 powerpc/book3e: support kgdb for kernel space kgdb/kgdbts: support ppc64 powerpc/kgdb: remove copying the thread_info arch/powerpc/kernel/exceptions-64e.S | 69 ++++++++++++++++++++++++++++++++-- arch/powerpc/kernel/kgdb.c | 41 +++++--------------- drivers/misc/kgdbts.c | 2 + 3 files changed, 77 insertions(+), 35 deletions(-) Tiejun