Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754140AbbHXLUt (ORCPT ); Mon, 24 Aug 2015 07:20:49 -0400 Received: from mail-yk0-f169.google.com ([209.85.160.169]:35435 "EHLO mail-yk0-f169.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751834AbbHXLUo (ORCPT ); Mon, 24 Aug 2015 07:20:44 -0400 From: Kevin Hao To: Michael Ellerman Cc: Benjamin Herrenschmidt , Peter Zijlstra , Ingo Molnar , linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org Subject: [PATCH v2 0/6] powerpc: use jump label for {cpu,mmu}_has_feature() Date: Mon, 24 Aug 2015 19:20:22 +0800 Message-Id: <1440415228-8006-1-git-send-email-haokexin@gmail.com> X-Mailer: git-send-email 2.1.0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2528 Lines: 58 Hi, v2: Drop the following two patches as suggested by Ingo and Peter: jump_label: no need to acquire the jump_label_mutex in jump_lable_init() jump_label: introduce DEFINE_STATIC_KEY_{TRUE,FALSE}_ARRAY macros v1: I have tried to change the {cpu,mmu}_has_feature() to use jump label two yeas ago [1]. But that codes seem a bit ugly. This is a reimplementation by moving the jump_label_init() much earlier so the jump label can be used in a very earlier stage. Boot test on p4080ds, t2080rdb and powermac (qemu). This patch series is against linux-next. [1] https://lists.ozlabs.org/pipermail/linuxppc-dev/2013-September/111026.html Kevin Hao (6): jump_label: make it possible for the archs to invoke jump_label_init() much earlier powerpc: invoke jump_label_init() in a much earlier stage powerpc: kill mfvtb() powerpc: move the cpu_has_feature to a separate file powerpc: use the jump label for cpu_has_feature powerpc: use jump label for mmu_has_feature arch/powerpc/include/asm/cacheflush.h | 1 + arch/powerpc/include/asm/cpufeatures.h | 34 ++++++++++++++++++++++++++++++ arch/powerpc/include/asm/cputable.h | 16 +++++++------- arch/powerpc/include/asm/cputime.h | 1 + arch/powerpc/include/asm/dbell.h | 1 + arch/powerpc/include/asm/dcr-native.h | 1 + arch/powerpc/include/asm/mman.h | 1 + arch/powerpc/include/asm/mmu.h | 29 ++++++++++++++++++++++++++ arch/powerpc/include/asm/reg.h | 9 -------- arch/powerpc/include/asm/time.h | 3 ++- arch/powerpc/include/asm/xor.h | 1 + arch/powerpc/kernel/align.c | 1 + arch/powerpc/kernel/cputable.c | 37 +++++++++++++++++++++++++++++++++ arch/powerpc/kernel/irq.c | 1 + arch/powerpc/kernel/process.c | 1 + arch/powerpc/kernel/setup-common.c | 1 + arch/powerpc/kernel/setup_32.c | 5 +++++ arch/powerpc/kernel/setup_64.c | 4 ++++ arch/powerpc/kernel/smp.c | 1 + arch/powerpc/platforms/cell/pervasive.c | 1 + arch/powerpc/xmon/ppc-dis.c | 1 + kernel/jump_label.c | 3 +++ 22 files changed, 135 insertions(+), 18 deletions(-) create mode 100644 arch/powerpc/include/asm/cpufeatures.h -- 2.1.0 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/