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=-16.7 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,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 32DB5C433EF for ; Tue, 21 Sep 2021 13:42:04 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 15B1461159 for ; Tue, 21 Sep 2021 13:42:04 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233411AbhIUNnb (ORCPT ); Tue, 21 Sep 2021 09:43:31 -0400 Received: from foss.arm.com ([217.140.110.172]:33916 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233422AbhIUNnW (ORCPT ); Tue, 21 Sep 2021 09:43:22 -0400 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id CBA31106F; Tue, 21 Sep 2021 06:41:53 -0700 (PDT) Received: from ewhatever.cambridge.arm.com (ewhatever.cambridge.arm.com [10.1.197.1]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id 0F2333F40C; Tue, 21 Sep 2021 06:41:51 -0700 (PDT) From: Suzuki K Poulose To: linux-arm-kernel@lists.infradead.org Cc: linux-kernel@vger.kernel.org, maz@kernel.org, catalin.marinas@arm.com, mark.rutland@arm.com, james.morse@arm.com, anshuman.khandual@arm.com, leo.yan@linaro.org, mike.leach@linaro.org, mathieu.poirier@linaro.org, will@kernel.org, lcherian@marvell.com, coresight@lists.linaro.org, Suzuki K Poulose Subject: [PATCH v2 12/17] coresight: trbe: Add a helper to fetch cpudata from perf handle Date: Tue, 21 Sep 2021 14:41:16 +0100 Message-Id: <20210921134121.2423546-13-suzuki.poulose@arm.com> X-Mailer: git-send-email 2.24.1 In-Reply-To: <20210921134121.2423546-1-suzuki.poulose@arm.com> References: <20210921134121.2423546-1-suzuki.poulose@arm.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Add a helper to get the CPU specific data for TRBE instance, from a given perf handle. This also adds extra checks to make sure that the event associated with the handle is "bound" to the CPU and is active on the TRBE. Cc: Anshuman Khandual Cc: Mike Leach Cc: Mathieu Poirier Cc: Leo Yan Signed-off-by: Suzuki K Poulose --- drivers/hwtracing/coresight/coresight-trbe.c | 12 ++++++++++-- 1 file changed, 10 insertions(+), 2 deletions(-) diff --git a/drivers/hwtracing/coresight/coresight-trbe.c b/drivers/hwtracing/coresight/coresight-trbe.c index 983dd5039e52..797d978f9fa7 100644 --- a/drivers/hwtracing/coresight/coresight-trbe.c +++ b/drivers/hwtracing/coresight/coresight-trbe.c @@ -268,6 +268,15 @@ static unsigned long trbe_snapshot_offset(struct perf_output_handle *handle) return buf->nr_pages * PAGE_SIZE; } +static inline struct trbe_cpudata * +trbe_handle_to_cpudata(struct perf_output_handle *handle) +{ + struct trbe_buf *buf = etm_perf_sink_config(handle); + + BUG_ON(!buf || !buf->cpudata); + return buf->cpudata; +} + /* * TRBE Limit Calculation * @@ -533,8 +542,7 @@ static enum trbe_fault_action trbe_get_fault_act(struct perf_output_handle *hand { int ec = get_trbe_ec(trbsr); int bsc = get_trbe_bsc(trbsr); - struct trbe_buf *buf = etm_perf_sink_config(handle); - struct trbe_cpudata *cpudata = buf->cpudata; + struct trbe_cpudata *cpudata = trbe_handle_to_cpudata(handle); WARN_ON(is_trbe_running(trbsr)); if (is_trbe_trg(trbsr) || is_trbe_abort(trbsr)) -- 2.24.1