From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753301Ab1G3ABW (ORCPT ); Fri, 29 Jul 2011 20:01:22 -0400 Received: from smtp-out.google.com ([216.239.44.51]:12759 "EHLO smtp-out.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753132Ab1G3ABR (ORCPT ); Fri, 29 Jul 2011 20:01:17 -0400 DomainKey-Signature: a=rsa-sha1; s=beta; d=google.com; c=nofws; q=dns; h=from:to:cc:subject:date:message-id:x-mailer; b=mLd6iLwRRSLYvth25VRwprDZTFrXfM5odZ1ZSDMqIn4Bxt6wV3ed0N2KcD6jqagDy hOfXgiCbk7F21pyPV7ZxA== From: Vaibhav Nagarnaik To: Frederic Weisbecker , Thomas Gleixner , Ingo Molnar , Peter Zijlstra , Steven Rostedt Cc: Michael Rubin , David Sharp , linux-kernel@vger.kernel.org, x86@kernel.org, Vaibhav Nagarnaik Subject: [PATCH 0/2] Add tracepoints to trace all x86 system IRQs Date: Fri, 29 Jul 2011 16:59:36 -0700 Message-Id: <1311983978-10350-1-git-send-email-vnagarnaik@google.com> X-Mailer: git-send-email 1.7.3.1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This is a patch series aiming to trace all the x86 system IRQs. The tracepoints make it easier to understand IRQ interaction with other system events and how do the IRQs affect the system behavior. Patch#0 adds irq_handler_{entry,exit} tracepoints to x86 timer interrupt handler. Patch#1 creates a irq_vectors/ event sub system and irq_vectors_{entry,exit} trace events. It adds tracepoints to all x86 IRQ vector handlers. Currently the patch only adds tracepoints to x86. A similar approach can be taken with other architectures to trace IRQ vectors in the system. Previous iterations of this patch set: https://lkml.org/lkml/2011/4/22/321 https://lkml.org/lkml/2011/7/14/309 Vaibhav Nagarnaik (2): trace,x86: Add tracepoint to x86 timer interrupt handler trace,x86: Add x86 irq vector entry/exit tracepoints arch/x86/include/asm/irq_vectors.h | 50 ++++++++++++++++++++++++++ arch/x86/kernel/apic/apic.c | 7 ++++ arch/x86/kernel/cpu/mcheck/therm_throt.c | 3 ++ arch/x86/kernel/cpu/mcheck/threshold.c | 3 ++ arch/x86/kernel/irq.c | 6 +++- arch/x86/kernel/irq_work.c | 3 ++ arch/x86/kernel/smp.c | 7 ++++ arch/x86/kernel/time.c | 15 +++++--- arch/x86/kernel/traps.c | 3 ++ arch/x86/mm/tlb.c | 3 ++ include/trace/events/irq_vectors.h | 56 ++++++++++++++++++++++++++++++ 11 files changed, 149 insertions(+), 7 deletions(-) create mode 100644 include/trace/events/irq_vectors.h -- 1.7.3.1