From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from e28smtp05.in.ibm.com (e28smtp05.in.ibm.com [122.248.162.5]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client CN "e28smtp05.in.ibm.com", Issuer "GeoTrust SSL CA" (not verified)) by ozlabs.org (Postfix) with ESMTPS id 215692C00B9 for ; Fri, 29 Mar 2013 21:00:52 +1100 (EST) Received: from /spool/local by e28smtp05.in.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Fri, 29 Mar 2013 15:27:53 +0530 Received: from d28relay01.in.ibm.com (d28relay01.in.ibm.com [9.184.220.58]) by d28dlp02.in.ibm.com (Postfix) with ESMTP id 345A83940053 for ; Fri, 29 Mar 2013 15:30:44 +0530 (IST) Received: from d28av03.in.ibm.com (d28av03.in.ibm.com [9.184.220.65]) by d28relay01.in.ibm.com (8.13.8/8.13.8/NCO v10.0) with ESMTP id r2TA0aCe44236842 for ; Fri, 29 Mar 2013 15:30:37 +0530 Received: from d28av03.in.ibm.com (loopback [127.0.0.1]) by d28av03.in.ibm.com (8.14.4/8.13.1/NCO v10.0 AVout) with ESMTP id r2TA0duM006112 for ; Fri, 29 Mar 2013 21:00:41 +1100 From: Li Zhong To: linux-kernel@vger.kernel.org Subject: [RFC PATCH v2 0/6] powerpc: Support context tracking for Power pSeries Date: Fri, 29 Mar 2013 18:00:15 +0800 Message-Id: <1364551221-23177-1-git-send-email-zhong@linux.vnet.ibm.com> Cc: Li Zhong , fweisbec@gmail.com, paulus@samba.org, paulmck@linux.vnet.ibm.com, linuxppc-dev@lists.ozlabs.org List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , These patches try to support context tracking for Power arch, beginning with 64-bit pSeries. The codes are ported from that of the x86_64, and in each patch, I listed the corresponding patch for x86. Would you please help review and give your comments? v2: I rebased the patches against 3.9-rcs, and also added a patch to replace the exception handling with the generic code in tip timers/nohz. I assume these patches would get in through powerpc tree, so I didn't combine the new patch (#6) with the original one (#2). So that if powerpc tree picks these, it could pick the first five patches, and apply patch #6 later when the dependency enters into powerpc tree (maybe on some 3.10-rcs). I'm also wondering whether it is possible for these to go through tip timers/nohz, so for now, patches #6 and #2 could be combined into one, and no need to worry about the issues caused by arch/common code merging. And it might also make future changes easier. Thanks, Zhong Li Zhong (6): powerpc: Syscall hooks for context tracking subsystem powerpc: Exception hooks for context tracking subsystem powerpc: Exit user context on notify resume powerpc: Use the new schedule_user API on userspace preemption powerpc: select HAVE_CONTEXT_TRACKING for pSeries powerpc: Use generic code for exception handling arch/powerpc/include/asm/context_tracking.h | 10 +++ arch/powerpc/include/asm/thread_info.h | 7 ++- arch/powerpc/kernel/entry_64.S | 3 +- arch/powerpc/kernel/ptrace.c | 5 ++ arch/powerpc/kernel/signal.c | 5 ++ arch/powerpc/kernel/traps.c | 91 ++++++++++++++++++++------- arch/powerpc/mm/fault.c | 16 ++++- arch/powerpc/mm/hash_utils_64.c | 38 ++++++++--- arch/powerpc/platforms/pseries/Kconfig | 1 + 9 files changed, 140 insertions(+), 36 deletions(-) create mode 100644 arch/powerpc/include/asm/context_tracking.h -- 1.7.9.5