From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1638DC28CC3 for ; Tue, 4 Jun 2019 13:03:10 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id E45D3214D8 for ; Tue, 4 Jun 2019 13:03:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727833AbfFDNDJ (ORCPT ); Tue, 4 Jun 2019 09:03:09 -0400 Received: from mga07.intel.com ([134.134.136.100]:5100 "EHLO mga07.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727381AbfFDNB5 (ORCPT ); Tue, 4 Jun 2019 09:01:57 -0400 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga005.fm.intel.com ([10.253.24.32]) by orsmga105.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 04 Jun 2019 06:01:56 -0700 X-ExtLoop1: 1 Received: from ahunter-desktop.fi.intel.com ([10.237.72.198]) by fmsmga005.fm.intel.com with ESMTP; 04 Jun 2019 06:01:55 -0700 From: Adrian Hunter To: Arnaldo Carvalho de Melo Cc: Jiri Olsa , Jin Yao , linux-kernel@vger.kernel.org Subject: [PATCH 04/19] perf intel-pt: Add lookahead callback Date: Tue, 4 Jun 2019 16:00:02 +0300 Message-Id: <20190604130017.31207-5-adrian.hunter@intel.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20190604130017.31207-1-adrian.hunter@intel.com> References: <20190604130017.31207-1-adrian.hunter@intel.com> Organization: Intel Finland Oy, Registered Address: PL 281, 00181 Helsinki, Business Identity Code: 0357606 - 4, Domiciled in Helsinki Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Add a callback function to enable the decoder to lookahead at subsequent trace buffers. This will be used to implement a "fast forward" facility which will be needed to support efficient time interval filtering. Signed-off-by: Adrian Hunter --- tools/perf/util/intel-pt-decoder/intel-pt-decoder.c | 2 ++ tools/perf/util/intel-pt-decoder/intel-pt-decoder.h | 3 +++ 2 files changed, 5 insertions(+) diff --git a/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c b/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c index 9eb778f9c911..13123b195083 100644 --- a/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c +++ b/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c @@ -104,6 +104,7 @@ struct intel_pt_decoder { uint64_t *insn_cnt_ptr, uint64_t *ip, uint64_t to_ip, uint64_t max_insn_cnt, void *data); bool (*pgd_ip)(uint64_t ip, void *data); + int (*lookahead)(void *data, intel_pt_lookahead_cb_t cb, void *cb_data); void *data; struct intel_pt_state state; const unsigned char *buf; @@ -233,6 +234,7 @@ struct intel_pt_decoder *intel_pt_decoder_new(struct intel_pt_params *params) decoder->get_trace = params->get_trace; decoder->walk_insn = params->walk_insn; decoder->pgd_ip = params->pgd_ip; + decoder->lookahead = params->lookahead; decoder->data = params->data; decoder->return_compression = params->return_compression; decoder->branch_enable = params->branch_enable; diff --git a/tools/perf/util/intel-pt-decoder/intel-pt-decoder.h b/tools/perf/util/intel-pt-decoder/intel-pt-decoder.h index 6a61773dc44b..de36254c6ac9 100644 --- a/tools/perf/util/intel-pt-decoder/intel-pt-decoder.h +++ b/tools/perf/util/intel-pt-decoder/intel-pt-decoder.h @@ -102,12 +102,15 @@ struct intel_pt_buffer { uint64_t trace_nr; }; +typedef int (*intel_pt_lookahead_cb_t)(struct intel_pt_buffer *, void *); + struct intel_pt_params { int (*get_trace)(struct intel_pt_buffer *buffer, void *data); int (*walk_insn)(struct intel_pt_insn *intel_pt_insn, uint64_t *insn_cnt_ptr, uint64_t *ip, uint64_t to_ip, uint64_t max_insn_cnt, void *data); bool (*pgd_ip)(uint64_t ip, void *data); + int (*lookahead)(void *data, intel_pt_lookahead_cb_t cb, void *cb_data); void *data; bool return_compression; bool branch_enable; -- 2.17.1