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 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 83190C282DE for ; Mon, 10 Mar 2025 09:15:08 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: Content-Type:In-Reply-To:From:References:Cc:To:Subject:MIME-Version:Date: Message-ID:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=tXIFzXMCYAO2eSRlrMCF/Cu3QH6PfsdDTvAV2/f3Rww=; b=jNmMsZDbK3bH8XFydhOOgKFukA NRE/Xbfjtq4KHUmwzZYV6Acf/eYRyVv4oLBOvoP6TBAjEHe26evk4U+oOq6BuMVNRrTkQjA4m+e7t bAEsZqwzKG+JgSbBKQSHV9BaU5wo4S1+WUPs4AsYMzsFRU1Sa1GNZ5uZFy3LnPymuO7NGYm7OL7nJ QCDxMO9VI+e/2srnsaxnXYy30jpPlZJ6ynubTr+tyl43+JynQTag1YornZWV6Hpbc+NWuGQxN32Q8 LK2Ym9ab3Gy5wT1bcWUtYVO8ZICABERJM5hXGtOy25a/MoJRsiEvcVTFZJphm617nSesA+KpbEwHv 4Bp0wdtQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98 #2 (Red Hat Linux)) id 1trZDt-000000022b4-0i1l; Mon, 10 Mar 2025 09:14:57 +0000 Received: from dfw.source.kernel.org ([2604:1380:4641:c500::1]) by bombadil.infradead.org with esmtps (Exim 4.98 #2 (Red Hat Linux)) id 1trZ6i-000000021W6-1qxm for linux-arm-kernel@lists.infradead.org; Mon, 10 Mar 2025 09:07:33 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by dfw.source.kernel.org (Postfix) with ESMTP id E650A5C5661; Mon, 10 Mar 2025 09:05:14 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 0A548C4CEE5; Mon, 10 Mar 2025 09:07:23 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1741597651; bh=qqZhkPRwUpaoAjzdi9JHwcv9INAknt/YcI8iZPeoNfo=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=ROKa6JMyCGoEK1zQZ+eBDyj+9hajyMmPMUo7p+ulN5c9OciTut+lyLieibDtMKm+k +34mUJ1+bQNND/80CkFxp1gNAq/0l/C3PdHkixjHL10WU3ncQXusTkGHL8HevDyAnP FwOwrUWavuWxXpyc6bT9o3YCBYxq/uab27I3jsoljb8MbJ73Kku/9GunWxIwtvxMUS 41LXhWzVdBgyEWT2ciP6fbLx1jpsiil+14U9o/NXpmUJBkgfKOFj0tt23ngXDaJxCW xuiyLHB0GUMYNjYaaMc6uW1AtXs0MDLdPvxHhnxSAW1R8M/KbYdtVslWNivVVqFAuj SkB+EFV0WQQtg== Message-ID: Date: Mon, 10 Mar 2025 10:07:20 +0100 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v1 1/4] coresight: tmc: Introduce new APIs to get the RWP offset of ETR buffer To: Jie Gan , Suzuki K Poulose , Mike Leach , James Clark , Alexander Shishkin , Maxime Coquelin , Alexandre Torgue , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Bjorn Andersson , Konrad Dybcio Cc: Tingwei Zhang , Jinlong Mao , coresight@lists.linaro.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-stm32@st-md-mailman.stormreply.com References: <20250310090407.2069489-1-quic_jiegan@quicinc.com> <20250310090407.2069489-2-quic_jiegan@quicinc.com> From: Krzysztof Kozlowski Content-Language: en-US Autocrypt: addr=krzk@kernel.org; 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charset=UTF-8 Content-Transfer-Encoding: 7bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250310_020732_599856_772BEA99 X-CRM114-Status: UNSURE ( 8.92 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On 10/03/2025 10:04, Jie Gan wrote: > +static long tmc_sg_get_rwp_offset(struct tmc_drvdata *drvdata) > +{ > + struct etr_buf *etr_buf = drvdata->sysfs_buf; > + struct etr_sg_table *etr_table = etr_buf->private; > + struct tmc_sg_table *table = etr_table->sg_table; > + long w_offset; > + u64 rwp; > + > + rwp = tmc_read_rwp(drvdata); > + w_offset = tmc_sg_get_data_page_offset(table, rwp); > + > + return w_offset; > +} > + > +/* > + * Retrieve the offset to the write pointer of the ETR buffer based on whether > + * the memory mode is SG, flat or reserved. > + */ > +long tmc_get_rwp_offset(struct tmc_drvdata *drvdata) You need kerneldoc for exports. Best regards, Krzysztof