From patchwork Thu Mar 14 05:58:34 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Anshuman Khandual X-Patchwork-Id: 13592110 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 28D9BC5475B for ; Thu, 14 Mar 2024 05:59:54 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=dZrsmpXkLFXJQR3j30WPSeFCSsFlrnNhIcjuYTLvpcQ=; b=xpwbXsBWoo6ZhH lW0uyREcE9oAW3uLnu3IbgDIapBl6ig2S+lyCSMQl5/m+GSci/12ieT6o072mg2mWYfal9GikJmWD Qmm95IXHiQUK2g9isDcMJdzhPkH7E8WVX2z/BHRhwURT3z1jSD6I44IxxT3w7YPGqKKOWh7jd3LSe OMJScbjNGjR8E3ohqAt6UNjHjACOHH1Fmidz9aNuGPsLRCWWs4TcUCSTseXgJfbWOwm36ns87PI9v aGdqPcEcYciGBwyJ5LbcewH7H09qETnMI0KJLPiAGpUpmDYd2H18xmTcL4jvgVI1px08SkdBzGJFx BFmNA7gVfdeUg3OzrcAA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1rke7l-0000000D77r-46G8; Thu, 14 Mar 2024 05:59:29 +0000 Received: from foss.arm.com ([217.140.110.172]) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1rke7i-0000000D76L-1cWk for linux-arm-kernel@lists.infradead.org; Thu, 14 Mar 2024 05:59:27 +0000 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 2D03A11FB; Wed, 13 Mar 2024 23:00:02 -0700 (PDT) Received: from a077893.arm.com (unknown [10.163.53.138]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id 010483F73F; Wed, 13 Mar 2024 22:59:21 -0700 (PDT) From: Anshuman Khandual To: linux-arm-kernel@lists.infradead.org, suzuki.poulose@arm.com Cc: Anshuman Khandual , Lorenzo Pieralisi , Sudeep Holla , Mike Leach , James Clark , Maxime Coquelin , Alexandre Torgue , linux-acpi@vger.kernel.org, linux-kernel@vger.kernel.org, coresight@lists.linaro.org, linux-stm32@st-md-mailman.stormreply.com Subject: [PATCH V7 02/11] coresight: stm: Extract device name from AMBA pid based table lookup Date: Thu, 14 Mar 2024 11:28:34 +0530 Message-Id: <20240314055843.2625883-3-anshuman.khandual@arm.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20240314055843.2625883-1-anshuman.khandual@arm.com> References: <20240314055843.2625883-1-anshuman.khandual@arm.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240313_225926_488379_EFB58900 X-CRM114-Status: GOOD ( 10.99 ) 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 Instead of using AMBA private data field, extract the device name from AMBA pid based table lookup using new coresight_get_uci_data_from_amba() helper. Cc: Suzuki K Poulose Cc: Mike Leach Cc: James Clark Cc: coresight@lists.linaro.org Cc: linux-arm-kernel@lists.infradead.org Cc: linux-kernel@vger.kernel.org Cc: linux-stm32@st-md-mailman.stormreply.com Reviewed-by: James Clark Signed-off-by: Anshuman Khandual --- drivers/hwtracing/coresight/coresight-priv.h | 10 ++++++++++ drivers/hwtracing/coresight/coresight-stm.c | 12 +++++++++++- 2 files changed, 21 insertions(+), 1 deletion(-) diff --git a/drivers/hwtracing/coresight/coresight-priv.h b/drivers/hwtracing/coresight/coresight-priv.h index eb365236f9a9..fc3617642b01 100644 --- a/drivers/hwtracing/coresight/coresight-priv.h +++ b/drivers/hwtracing/coresight/coresight-priv.h @@ -222,6 +222,16 @@ static inline void *coresight_get_uci_data(const struct amba_id *id) return uci_id->data; } +static inline void *coresight_get_uci_data_from_amba(const struct amba_id *table, u32 pid) +{ + while (table->mask) { + if ((pid & table->mask) == table->id) + return coresight_get_uci_data(table); + table++; + }; + return NULL; +} + void coresight_release_platform_data(struct coresight_device *csdev, struct device *dev, struct coresight_platform_data *pdata); diff --git a/drivers/hwtracing/coresight/coresight-stm.c b/drivers/hwtracing/coresight/coresight-stm.c index 974d37e5f94c..5ae24c33c846 100644 --- a/drivers/hwtracing/coresight/coresight-stm.c +++ b/drivers/hwtracing/coresight/coresight-stm.c @@ -800,6 +800,16 @@ static void stm_init_generic_data(struct stm_drvdata *drvdata, drvdata->stm.set_options = stm_generic_set_options; } +static const struct amba_id stm_ids[]; + +static char *stm_csdev_name(struct coresight_device *csdev) +{ + u32 stm_pid = coresight_get_pid(&csdev->access); + void *uci_data = coresight_get_uci_data_from_amba(stm_ids, stm_pid); + + return uci_data ? (char *)uci_data : "STM"; +} + static int stm_probe(struct amba_device *adev, const struct amba_id *id) { int ret, trace_id; @@ -896,7 +906,7 @@ static int stm_probe(struct amba_device *adev, const struct amba_id *id) pm_runtime_put(&adev->dev); dev_info(&drvdata->csdev->dev, "%s initialized\n", - (char *)coresight_get_uci_data(id)); + stm_csdev_name(drvdata->csdev)); return 0; cs_unregister: