From patchwork Fri Feb 15 00:45:29 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Arnaldo Carvalho de Melo X-Patchwork-Id: 10814067 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 184AD188D for ; Fri, 15 Feb 2019 00:49:54 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 051462ED90 for ; Fri, 15 Feb 2019 00:49:54 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id ED6382EDD2; Fri, 15 Feb 2019 00:49:53 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.2 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 928E32ED90 for ; Fri, 15 Feb 2019 00:49:53 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=wW1j8rB9/CY9Ervk+7p48uWorynqEevnmhakoVp7LNE=; b=VdRfObp/+riwlp xlJ5o6X6X8HGTgvFzH5FxBM+h6BdKBrlYG3U6GU4Y2X1TfBQmmkrTuPm0pWnKyWP56mlAYZheDPC2 SgqBeypl9rsSYi1QD7eCuKU0tFxda48fkzVzEOmlSJKFP03lzfbsTeu4MHHd+5QdUrPS87UjnwzYU m7asNTKdMg63MIweOu6W9YzutLg5g80TIQMyUUUPg+N50Eh1DN61b2KBXFatAbaEsl/rWGg91+raq Yslpyc9ZX0Y8qkCtUEk4nyLJJw+ZTWRMemIuMqW0DOQFUwNuIsRXnpqOlxl53ne2j01aTCES8Sa1c M7SXIMDJZ42w1UFOGTgQ==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1guRhK-0006rf-QC; Fri, 15 Feb 2019 00:49:46 +0000 Received: from mail.kernel.org ([198.145.29.99]) by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1guRfr-0005F8-Dg for linux-arm-kernel@lists.infradead.org; Fri, 15 Feb 2019 00:48:36 +0000 Received: from quaco.ghostprotocols.net (unknown [189.40.103.31]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 4D470222C9; Fri, 15 Feb 2019 00:48:09 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1550191695; bh=WFKhBGivstHsu/Fs+BfZ/htyrxFjYHkApYCCiKiHFX4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=l+kbDdZ8vnowMRYyDFsySlyuP4BTytgPEFwEzygpMOMgFhGMg/T2N6+bkwgMuElLg nTrhax+BqDCi5KcMrlQe9+SiTx2PWq0hSNTS0s/h4GiYlVACdFZqqbcSXNINJSUgfF FZGwZDE63wVn13Ka4S8Wrr4et7Kkwn8hbXARcCrg= From: Arnaldo Carvalho de Melo To: Ingo Molnar Subject: [PATCH 33/43] perf cs-etm: Modularize main decoder function Date: Thu, 14 Feb 2019 21:45:29 -0300 Message-Id: <20190215004539.23571-34-acme@kernel.org> X-Mailer: git-send-email 2.19.1 In-Reply-To: <20190215004539.23571-1-acme@kernel.org> References: <20190215004539.23571-1-acme@kernel.org> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190214_164815_502466_0714B0CB X-CRM114-Status: GOOD ( 13.40 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Arnaldo Carvalho de Melo , Mathieu Poirier , Suzuki K Poulouse , Clark Williams , linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org, Peter Zijlstra , Jiri Olsa , Leo Yan , Namhyung Kim , Jiri Olsa , linux-arm-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP From: Mathieu Poirier Making the main decoder block modular so that it can be called from different decoding context (timeless vs. non-timeless), avoiding to repeat code. No change in functionality is introduced by this patch. Signed-off-by: Mathieu Poirier Cc: Jiri Olsa Cc: Leo Yan Cc: Peter Zijlstra Cc: Suzuki K Poulouse Cc: linux-arm-kernel@lists.infradead.org Link: http://lkml.kernel.org/r/20190212171618.25355-12-mathieu.poirier@linaro.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/cs-etm.c | 41 ++++++++++++++++++++++++++++------------ 1 file changed, 29 insertions(+), 12 deletions(-) diff --git a/tools/perf/util/cs-etm.c b/tools/perf/util/cs-etm.c index d2c90b369e7c..cfa686fe223e 100644 --- a/tools/perf/util/cs-etm.c +++ b/tools/perf/util/cs-etm.c @@ -1491,9 +1491,36 @@ static int cs_etm__set_sample_flags(struct cs_etm_queue *etmq) return 0; } +static int cs_etm__decode_data_block(struct cs_etm_queue *etmq) +{ + int ret = 0; + size_t processed = 0; + + /* + * Packets are decoded and added to the decoder's packet queue + * until the decoder packet processing callback has requested that + * processing stops or there is nothing left in the buffer. Normal + * operations that stop processing are a timestamp packet or a full + * decoder buffer queue. + */ + ret = cs_etm_decoder__process_data_block(etmq->decoder, + etmq->offset, + &etmq->buf[etmq->buf_used], + etmq->buf_len, + &processed); + if (ret) + goto out; + + etmq->offset += processed; + etmq->buf_used += processed; + etmq->buf_len -= processed; + +out: + return ret; +} + static int cs_etm__run_decoder(struct cs_etm_queue *etmq) { - size_t processed; int err = 0; /* Go through each buffer in the queue and decode them one by one */ @@ -1513,20 +1540,10 @@ static int cs_etm__run_decoder(struct cs_etm_queue *etmq) /* Run trace decoder until buffer consumed or end of trace */ do { - processed = 0; - err = cs_etm_decoder__process_data_block( - etmq->decoder, - etmq->offset, - &etmq->buf[etmq->buf_used], - etmq->buf_len, - &processed); + err = cs_etm__decode_data_block(etmq); if (err) return err; - etmq->offset += processed; - etmq->buf_used += processed; - etmq->buf_len -= processed; - /* Process each packet in this chunk */ while (1) { err = cs_etm_decoder__get_packet(etmq->decoder,