From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757965AbaEIVwL (ORCPT ); Fri, 9 May 2014 17:52:11 -0400 Received: from mail-oa0-f42.google.com ([209.85.219.42]:64507 "EHLO mail-oa0-f42.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932185AbaEIVwH (ORCPT ); Fri, 9 May 2014 17:52:07 -0400 From: Larry Bassel To: catalin.marinas@arm.com, will.deacon@arm.com Cc: linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linaro-kernel@lists.linaro.org, khilman@linaro.org, Larry Bassel Subject: [PATCH v3 0/2] context tracker support for arm64 Date: Fri, 9 May 2014 14:51:48 -0700 Message-Id: <1399672310-9061-1-git-send-email-larry.bassel@linaro.org> X-Mailer: git-send-email 1.8.3.2 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Implement and enable context tracking for arm64 (which is a prerequisite for FULL_NOHZ support). This patchset builds upon earlier work by Kevin Hilman and is based on 3.15-rc2. Changes v2 to v3: * Save/restore necessary registers in ct_user_enter and ct_user_exit * Annotate "error paths" out of el0_sync with ct_user_exit Changes v1 to v2: * Save far_el1 in x26 temporarily Larry Bassel (2): arm64: adjust el0_sync so that a function can be called arm64: enable context tracking arch/arm64/Kconfig | 1 + arch/arm64/include/asm/thread_info.h | 1 + arch/arm64/kernel/entry.S | 76 ++++++++++++++++++++++++++++++++---- 3 files changed, 70 insertions(+), 8 deletions(-) -- 1.8.3.2