Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753793AbaAUUn2 (ORCPT ); Tue, 21 Jan 2014 15:43:28 -0500 Received: from merlin.infradead.org ([205.233.59.134]:37260 "EHLO merlin.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753506AbaAUUnV (ORCPT ); Tue, 21 Jan 2014 15:43:21 -0500 From: Arnaldo Carvalho de Melo To: Ingo Molnar Cc: linux-kernel@vger.kernel.org, Baruch Siach , Ingo Molnar , Paul Mackerras , Peter Zijlstra , linux-xtensa@linux-xtensa.org, Arnaldo Carvalho de Melo Subject: [PATCH 3/8] perf tools: Add support for the xtensa architecture Date: Tue, 21 Jan 2014 17:42:59 -0300 Message-Id: <1390336984-1553-4-git-send-email-acme@infradead.org> X-Mailer: git-send-email 1.8.1.4 In-Reply-To: <1390336984-1553-1-git-send-email-acme@infradead.org> References: <1390336984-1553-1-git-send-email-acme@infradead.org> X-SRS-Rewrite: SMTP reverse-path rewritten from by merlin.infradead.org See http://www.infradead.org/rpr.html Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Baruch Siach Tested using kernel tracepoints on a QEMU simulated environment. Kernel support for perf depends on the patch "xtensa: enable HAVE_PERF_EVENTS", which is scheduled for v3.14. Hardware performance counters are not supported under xtensa yet. Acked-by: Ingo Molnar Acked-by: Max Filippov Cc: Ingo Molnar Cc: Paul Mackerras Cc: Peter Zijlstra Cc: linux-xtensa@linux-xtensa.org Link: http://lkml.kernel.org/r/aafcdb22f04e2d3188d2938528939481be56b649.1389608855.git.baruch@tkos.co.il Signed-off-by: Baruch Siach Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/perf.h | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/tools/perf/perf.h b/tools/perf/perf.h index 3c2f213e979d..7daa806d9050 100644 --- a/tools/perf/perf.h +++ b/tools/perf/perf.h @@ -132,6 +132,13 @@ #define CPUINFO_PROC "CPU" #endif +#ifdef __xtensa__ +#define mb() asm volatile("memw" ::: "memory") +#define wmb() asm volatile("memw" ::: "memory") +#define rmb() asm volatile("" ::: "memory") +#define CPUINFO_PROC "core ID" +#endif + #define barrier() asm volatile ("" ::: "memory") #ifndef cpu_relax -- 1.8.1.4 -- 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/