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=-18.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT autolearn=unavailable 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 8DBCBC43332 for ; Tue, 16 Mar 2021 18:08:18 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 3A7B965132 for ; Tue, 16 Mar 2021 18:08:18 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S239719AbhCPSHl (ORCPT ); Tue, 16 Mar 2021 14:07:41 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42376 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236436AbhCPSGi (ORCPT ); Tue, 16 Mar 2021 14:06:38 -0400 Received: from mail-wr1-x431.google.com (mail-wr1-x431.google.com [IPv6:2a00:1450:4864:20::431]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id AFCF4C0613DF for ; Tue, 16 Mar 2021 11:04:08 -0700 (PDT) Received: by mail-wr1-x431.google.com with SMTP id k8so7901531wrc.3 for ; Tue, 16 Mar 2021 11:04:08 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=p7Tdc5TFfUaWBO+WOQMArho6SVfz49w0iPPF+CGCt68=; b=LbSB0k4BPxDrtm7z61uvfrT8hqKUJ2vlBupky7lx/hOVIWEomY9AL9CKEdNxyFloqD npahqll8zvyRpGks8ygToy7yPSkFkofuwULOCCR0fsDP74hl/Tj5JG6F/BKpTwS2cCpK U7t1XisOtFYZBQoLfawkCAWKzUBQ/pNFd8rAjdhcDErsPwdrfSbCv7WK9fQqcQ/tKPcB rZB47M0kbXGbMmMKYjOLCqsLWgEP1bggXeAw750Uldsqz9CdYRc62EgGlaRg5+5Q6uKE O4ryqe8kCUb8exOFMMBI4l6giCbgJzmESgO7xKddG0P1PcqVHaJH8KD5sb8sEBGwyKJS 9Y5Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=p7Tdc5TFfUaWBO+WOQMArho6SVfz49w0iPPF+CGCt68=; b=efn+8XPPXqLwNx2lqlqilBgahxrvsVZaYRJz2iLbYGXcQ1xU9WycYCuhEhSZXP8/ug PsAVAdWzYSKAvGQAcZmz9iDC51dHH7wj87LF1MeQHyHTlyZvtJsD+y5j0bWy9Z3FwkFH /X5or+X64vimVFyTspsfQqEfoQHJsSq5prRIYwwnRH//EvvTMB/sUkM2czH3+yGl05O3 rm5RwyVhxf4R+i41DaqOThqO1JJ27MMVwZatTh7fN7CiCHNESeV1oEIA6Ly15+ZWhoj9 LxUYcNRspLyoVbFLAbDEz3ZZkCRGAlreN7SPf28E7GYsQ2S5TxawiYtGkgCyCgdul0UC Um9Q== X-Gm-Message-State: AOAM531H0mdbzthTzazuqlBrjK8Fy9SgsMicIob0N/zgvopkXiRuwzw+ /8gJIzs1THTciia6jH8lZHGqiA== X-Google-Smtp-Source: ABdhPJwMwie0bKXU7zrbfSHtNY1rBP8NFRNmAb2kjq0nsUzm74MGuXfv31TZpWVYSxZhlsYUjaX39A== X-Received: by 2002:adf:e7c2:: with SMTP id e2mr286521wrn.338.1615917847473; Tue, 16 Mar 2021 11:04:07 -0700 (PDT) Received: from linaro.org ([2a00:23c5:6801:1801:84a6:25fa:dde:ecca]) by smtp.gmail.com with ESMTPSA id d13sm23927858wro.23.2021.03.16.11.04.06 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 16 Mar 2021 11:04:07 -0700 (PDT) From: Mike Leach To: linux-arm-kernel@lists.infradead.org, coresight@lists.linaro.org, mathieu.poirier@linaro.org, linux-doc@vger.kernel.org, suzuki.poulose@arm.com Cc: yabinc@google.com, corbet@lwn.net, leo.yan@linaro.org, alexander.shishkin@linux.intel.com, tingwei@codeaurora.org, gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, Mike Leach Subject: [PATCH v5 06/10] coresight: etm-perf: Update to activate selected configuration Date: Tue, 16 Mar 2021 18:03:56 +0000 Message-Id: <20210316180400.7184-7-mike.leach@linaro.org> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20210316180400.7184-1-mike.leach@linaro.org> References: <20210316180400.7184-1-mike.leach@linaro.org> Precedence: bulk List-ID: X-Mailing-List: linux-doc@vger.kernel.org Add calls to activate the selected configuration as perf starts and stops the tracing session. Signed-off-by: Mike Leach Reviewed-by: Suzuki K Poulose --- drivers/hwtracing/coresight/coresight-etm-perf.c | 14 +++++++++++++- drivers/hwtracing/coresight/coresight-etm-perf.h | 2 ++ 2 files changed, 15 insertions(+), 1 deletion(-) diff --git a/drivers/hwtracing/coresight/coresight-etm-perf.c b/drivers/hwtracing/coresight/coresight-etm-perf.c index 66bda452a2f4..9128f59864a8 100644 --- a/drivers/hwtracing/coresight/coresight-etm-perf.c +++ b/drivers/hwtracing/coresight/coresight-etm-perf.c @@ -196,6 +196,10 @@ static void free_event_data(struct work_struct *work) /* Free the sink buffers, if there are any */ free_sink_buffer(event_data); + /* clear any configuration we were using */ + if (event_data->cfg_hash) + cscfg_deactivate_config(event_data->cfg_hash); + for_each_cpu(cpu, mask) { struct list_head **ppath; @@ -254,7 +258,7 @@ static void etm_free_aux(void *data) static void *etm_setup_aux(struct perf_event *event, void **pages, int nr_pages, bool overwrite) { - u32 id; + u32 id, cfg_hash; int cpu = event->cpu; cpumask_t *mask; struct coresight_device *sink = NULL; @@ -271,6 +275,14 @@ static void *etm_setup_aux(struct perf_event *event, void **pages, sink = coresight_get_sink_by_id(id); } + /* check if user wants a coresight configuration selected */ + cfg_hash = (u32)((event->attr.config2 & GENMASK_ULL(63, 32)) >> 32); + if (cfg_hash) { + if (cscfg_activate_config(cfg_hash)) + goto err; + event_data->cfg_hash = cfg_hash; + } + mask = &event_data->mask; /* diff --git a/drivers/hwtracing/coresight/coresight-etm-perf.h b/drivers/hwtracing/coresight/coresight-etm-perf.h index ba617fe2217e..468f7799ab4f 100644 --- a/drivers/hwtracing/coresight/coresight-etm-perf.h +++ b/drivers/hwtracing/coresight/coresight-etm-perf.h @@ -49,12 +49,14 @@ struct etm_filters { * @work: Handle to free allocated memory outside IRQ context. * @mask: Hold the CPU(s) this event was set for. * @snk_config: The sink configuration. + * @cfg_hash: The hash id of any coresight config selected. * @path: An array of path, each slot for one CPU. */ struct etm_event_data { struct work_struct work; cpumask_t mask; void *snk_config; + u32 cfg_hash; struct list_head * __percpu *path; }; -- 2.17.1