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=-18.7 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=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 38D5AC433F5 for ; Sun, 5 Sep 2021 13:12:59 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 1ED0460F45 for ; Sun, 5 Sep 2021 13:12:59 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237896AbhIENOA (ORCPT ); Sun, 5 Sep 2021 09:14:00 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33700 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237863AbhIENOA (ORCPT ); Sun, 5 Sep 2021 09:14:00 -0400 Received: from mail-pl1-x630.google.com (mail-pl1-x630.google.com [IPv6:2607:f8b0:4864:20::630]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2FD60C061575 for ; Sun, 5 Sep 2021 06:12:57 -0700 (PDT) Received: by mail-pl1-x630.google.com with SMTP id j2so2338038pll.1 for ; Sun, 05 Sep 2021 06:12:57 -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 :mime-version:content-transfer-encoding; bh=BEM00qsPpIRL3lpy7qXqtObj3G0WQJvL4ysVAmwesIc=; b=kWZTvvlVS3+U03pD1Mty00yMJgFcyoC4I8DvlHrcLPvBEOLp7rLVzWjGk+2/4TzZ9+ RT87zXTYkK7uQO84gz3LbH+rYlYnUB18E7UovxkrOAbxDNlyVB5nGLQPGz791c2/Z6gj Oo7IDba8LJVc4mn4MHSPhhaT1krJOIDxEAEppux64KlJwMGYeB+EMgwXACe0jNqMZ61d Cb0Co0fhhBEUZ2HvjlbwrbAaiX75MXlVD5oHIdQ0g6rNRYhFRrjwuSYOzRQRwFXg2pcy 6vj888DV4VOs28abRL1IM00tsRr0K1hAO0IYYL4J5y9b2/4ogdeXatMd2PoDdCy8jRyY cNKA== 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:mime-version:content-transfer-encoding; bh=BEM00qsPpIRL3lpy7qXqtObj3G0WQJvL4ysVAmwesIc=; b=AZOWSQjFK62wSoHmwVi6yQffqs2sRr3B8CBsAxUMnAhUUg5ORvJi2tIejwOKg1ROGI 9VyNyAN9aUAO0n+hTdOy4Exm76S5A/V07XzpFOvKoRu1vR4EgiJipbAEOmnbaMl34K7F tNevZczX8JRs4aC6mNt33XM/mZL5Bafgie9o1inNY3yV4emYWbto0qIYCZhtzpQDztB/ 1edraTqrBtAdy/WoOmR9yUEfaeh+1oL/onAotORdfDSmmveOZVRruU5Izkesd6yVtZl5 0CltXYgDb/ws8dGulo4hqW0ERW3HJU3zi1+aEzvxRd7BEn6dPIH0X+kQQnVbIf/UGK4b ElDQ== X-Gm-Message-State: AOAM532IEfF3G4Kpuzm0Ezy60nNwXr5Et/+eBm2Dtkjr6C65XUsIe7LY 32l5YD0U5aEpY/CpXwQd9TOHMoFD+PiOSv6q7/E= X-Google-Smtp-Source: ABdhPJwi8Vr/uRQdkhGN/jlvlisDkKGr3m1G7XRUkaNVdBfQL+6oytqammXV2p2YLE5I1ZpBY/ryjQ== X-Received: by 2002:a17:903:41ce:b0:13a:21a7:1304 with SMTP id u14-20020a17090341ce00b0013a21a71304mr354750ple.65.1630847576575; Sun, 05 Sep 2021 06:12:56 -0700 (PDT) Received: from localhost ([204.124.181.224]) by smtp.gmail.com with ESMTPSA id x9sm4697035pjf.52.2021.09.05.06.12.55 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 05 Sep 2021 06:12:56 -0700 (PDT) From: Leo Yan To: Mathieu Poirier , Suzuki K Poulose , Mike Leach , James Clark , Alexander Shishkin , coresight@lists.linaro.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Cc: Leo Yan Subject: [PATCH v3 2/2] coresight: Update comments for removing cs_etm_find_snapshot() Date: Sun, 5 Sep 2021 21:12:37 +0800 Message-Id: <20210905131237.1035322-3-leo.yan@linaro.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210905131237.1035322-1-leo.yan@linaro.org> References: <20210905131237.1035322-1-leo.yan@linaro.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Commit 2f01c200d440 ("perf cs-etm: Remove callback cs_etm_find_snapshot()") has removed the function cs_etm_find_snapshot() from the perf tool in the user space, now CoreSight trace directly uses the perf common function __auxtrace_mmap__read() to calcualte the head and size for AUX trace data in snapshot mode. Updates the comments in drivers to reflect the changes. Signed-off-by: Leo Yan --- drivers/hwtracing/coresight/coresight-etb10.c | 2 +- drivers/hwtracing/coresight/coresight-tmc-etf.c | 2 +- drivers/hwtracing/coresight/coresight-tmc-etr.c | 2 +- 3 files changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/hwtracing/coresight/coresight-etb10.c b/drivers/hwtracing/coresight/coresight-etb10.c index f775cbee12b8..1cdb627d6c38 100644 --- a/drivers/hwtracing/coresight/coresight-etb10.c +++ b/drivers/hwtracing/coresight/coresight-etb10.c @@ -557,7 +557,7 @@ static unsigned long etb_update_buffer(struct coresight_device *csdev, /* * In snapshot mode we simply increment the head by the number of byte - * that were written. User space function cs_etm_find_snapshot() will + * that were written. User space function __auxtrace_mmap__read() will * figure out how many bytes to get from the AUX buffer based on the * position of the head. */ diff --git a/drivers/hwtracing/coresight/coresight-tmc-etf.c b/drivers/hwtracing/coresight/coresight-tmc-etf.c index cd0fb7bfba68..a895931a2766 100644 --- a/drivers/hwtracing/coresight/coresight-tmc-etf.c +++ b/drivers/hwtracing/coresight/coresight-tmc-etf.c @@ -546,7 +546,7 @@ static unsigned long tmc_update_etf_buffer(struct coresight_device *csdev, /* * In snapshot mode we simply increment the head by the number of byte - * that were written. User space function cs_etm_find_snapshot() will + * that were written. User space function __auxtrace_mmap__read() will * figure out how many bytes to get from the AUX buffer based on the * position of the head. */ diff --git a/drivers/hwtracing/coresight/coresight-tmc-etr.c b/drivers/hwtracing/coresight/coresight-tmc-etr.c index d23c7690f29a..941abb70b827 100644 --- a/drivers/hwtracing/coresight/coresight-tmc-etr.c +++ b/drivers/hwtracing/coresight/coresight-tmc-etr.c @@ -1573,7 +1573,7 @@ tmc_update_etr_buffer(struct coresight_device *csdev, /* * In snapshot mode we simply increment the head by the number of byte - * that were written. User space function cs_etm_find_snapshot() will + * that were written. User space function __auxtrace_mmap__read() will * figure out how many bytes to get from the AUX buffer based on the * position of the head. */ -- 2.25.1