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=-12.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,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 17F9EC43461 for ; Tue, 15 Sep 2020 10:51:15 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id C3AEA20B1F for ; Tue, 15 Sep 2020 10:51:14 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=mg.codeaurora.org header.i=@mg.codeaurora.org header.b="ohFGgvjv" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726328AbgIOKvG (ORCPT ); Tue, 15 Sep 2020 06:51:06 -0400 Received: from mail29.static.mailgun.info ([104.130.122.29]:39390 "EHLO mail29.static.mailgun.info" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726423AbgIOKnl (ORCPT ); Tue, 15 Sep 2020 06:43:41 -0400 DKIM-Signature: a=rsa-sha256; v=1; c=relaxed/relaxed; d=mg.codeaurora.org; q=dns/txt; s=smtp; t=1600166619; h=Content-Transfer-Encoding: MIME-Version: References: In-Reply-To: Message-Id: Date: Subject: Cc: To: From: Sender; bh=8Khge7CSEVaohf1+4l4HBUMi448pKm+gNdIWfe5825s=; b=ohFGgvjvYdSBCoFFT6pvKjj1JJLD3IoRxb3EcNDfARZAOPi/BTpC5uK6BixFNnMDmfWU9O6T Ir6LpLbWmXsjil/6gFlqKo0uYUCziwEYBc0DdhXRqNy6LwPPp3bmPEUyUOcykdYUneGxUCvs JUakrkXr/IvxqNKWQLO6Rv5LzSc= X-Mailgun-Sending-Ip: 104.130.122.29 X-Mailgun-Sid: WyI0MWYwYSIsICJsaW51eC1rZXJuZWxAdmdlci5rZXJuZWwub3JnIiwgImJlOWU0YSJd Received: from smtp.codeaurora.org (ec2-35-166-182-171.us-west-2.compute.amazonaws.com [35.166.182.171]) by smtp-out-n05.prod.us-east-1.postgun.com with SMTP id 5f609adb9f3347551f6f06aa (version=TLS1.2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256); Tue, 15 Sep 2020 10:43:39 GMT Received: by smtp.codeaurora.org (Postfix, from userid 1001) id EA4CCC43385; Tue, 15 Sep 2020 10:43:38 +0000 (UTC) Received: from tingweiz-gv.qualcomm.com (unknown [180.166.53.21]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: tingwei) by smtp.codeaurora.org (Postfix) with ESMTPSA id 5C946C43387; Tue, 15 Sep 2020 10:43:33 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 5C946C43387 Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; spf=fail smtp.mailfrom=tingwei@codeaurora.org From: Tingwei Zhang To: Mathieu Poirier , Suzuki K Poulose , Alexander Shishkin , Mike Leach Cc: Tingwei Zhang , Greg Kroah-Hartman , Leo Yan , Randy Dunlap , Russell King , Kim Phillips , Mian Yousaf Kaukab , tsoni@codeaurora.org, Sai Prakash Ranjan , Mao Jinlong , coresight@lists.linaro.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH v11 21/24] coresight: cti: allow cti to be built as a module Date: Tue, 15 Sep 2020 18:41:13 +0800 Message-Id: <20200915104116.16789-22-tingwei@codeaurora.org> X-Mailer: git-send-email 2.20.0 In-Reply-To: <20200915104116.16789-1-tingwei@codeaurora.org> References: <20200915104116.16789-1-tingwei@codeaurora.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Allow to build coresight-cti as a module, for ease of development. - Kconfig becomes a tristate, to allow =m - append -core to source file name to allow module to be called coresight-cti by the Makefile - add an cti_remove function, for module unload - add a MODULE_DEVICE_TABLE for autoloading on boot - move cti_remove_conn_xrefs to cti_remove since all sysfs links have gone when system calls device_release. Signed-off-by: Tingwei Zhang Tested-by: Mike Leach Reviewed-by Mike Leach --- drivers/hwtracing/coresight/Kconfig | 5 ++++- drivers/hwtracing/coresight/Makefile | 6 +++--- .../{coresight-cti.c => coresight-cti-core.c} | 20 ++++++++++++++++++- .../hwtracing/coresight/coresight-platform.c | 1 + drivers/hwtracing/coresight/coresight.c | 1 + 5 files changed, 28 insertions(+), 5 deletions(-) rename drivers/hwtracing/coresight/{coresight-cti.c => coresight-cti-core.c} (98%) diff --git a/drivers/hwtracing/coresight/Kconfig b/drivers/hwtracing/coresight/Kconfig index f31778dd0b5d..b04aae2ceecc 100644 --- a/drivers/hwtracing/coresight/Kconfig +++ b/drivers/hwtracing/coresight/Kconfig @@ -136,7 +136,7 @@ config CORESIGHT_CPU_DEBUG module will be called coresight-cpu-debug. config CORESIGHT_CTI - bool "CoreSight Cross Trigger Interface (CTI) driver" + tristate "CoreSight Cross Trigger Interface (CTI) driver" depends on ARM || ARM64 help This driver provides support for CoreSight CTI and CTM components. @@ -147,6 +147,9 @@ config CORESIGHT_CTI halt compared to disabling sources and sinks normally in driver software. + To compile this driver as a module, choose M here: the + module will be called coresight-cti. + config CORESIGHT_CTI_INTEGRATION_REGS bool "Access CTI CoreSight Integration Registers" depends on CORESIGHT_CTI diff --git a/drivers/hwtracing/coresight/Makefile b/drivers/hwtracing/coresight/Makefile index 3dbd49a060dd..27034bd4d3c7 100644 --- a/drivers/hwtracing/coresight/Makefile +++ b/drivers/hwtracing/coresight/Makefile @@ -19,6 +19,6 @@ coresight-etm4x-y := coresight-etm4x-core.o coresight-etm4x-sysfs.o obj-$(CONFIG_CORESIGHT_STM) += coresight-stm.o obj-$(CONFIG_CORESIGHT_CPU_DEBUG) += coresight-cpu-debug.o obj-$(CONFIG_CORESIGHT_CATU) += coresight-catu.o -obj-$(CONFIG_CORESIGHT_CTI) += coresight-cti.o \ - coresight-cti-platform.o \ - coresight-cti-sysfs.o +obj-$(CONFIG_CORESIGHT_CTI) += coresight-cti.o +coresight-cti-y := coresight-cti-core.o coresight-cti-platform.o \ + coresight-cti-sysfs.o diff --git a/drivers/hwtracing/coresight/coresight-cti.c b/drivers/hwtracing/coresight/coresight-cti-core.c similarity index 98% rename from drivers/hwtracing/coresight/coresight-cti.c rename to drivers/hwtracing/coresight/coresight-cti-core.c index 38e785d913b0..d28eae93e55c 100644 --- a/drivers/hwtracing/coresight/coresight-cti.c +++ b/drivers/hwtracing/coresight/coresight-cti-core.c @@ -822,7 +822,6 @@ static void cti_device_release(struct device *dev) struct cti_drvdata *ect_item, *ect_tmp; mutex_lock(&ect_mutex); - cti_remove_conn_xrefs(drvdata); cti_pm_release(drvdata); /* remove from the list */ @@ -837,6 +836,18 @@ static void cti_device_release(struct device *dev) if (drvdata->csdev_release) drvdata->csdev_release(dev); } +static int __exit cti_remove(struct amba_device *adev) +{ + struct cti_drvdata *drvdata = dev_get_drvdata(&adev->dev); + + mutex_lock(&ect_mutex); + cti_remove_conn_xrefs(drvdata); + mutex_unlock(&ect_mutex); + + coresight_unregister(drvdata->csdev); + + return 0; +} static int cti_probe(struct amba_device *adev, const struct amba_id *id) { @@ -957,6 +968,8 @@ static const struct amba_id cti_ids[] = { { 0, 0}, }; +MODULE_DEVICE_TABLE(amba, cti_ids); + static struct amba_driver cti_driver = { .drv = { .name = "coresight-cti", @@ -964,6 +977,7 @@ static struct amba_driver cti_driver = { .suppress_bind_attrs = true, }, .probe = cti_probe, + .remove = cti_remove, .id_table = cti_ids, }; @@ -986,3 +1000,7 @@ static void __exit cti_exit(void) module_init(cti_init); module_exit(cti_exit); + +MODULE_AUTHOR("Mike Leach "); +MODULE_DESCRIPTION("Arm CoreSight CTI Driver"); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/hwtracing/coresight/coresight-platform.c b/drivers/hwtracing/coresight/coresight-platform.c index 227e234a2470..3629b7885aca 100644 --- a/drivers/hwtracing/coresight/coresight-platform.c +++ b/drivers/hwtracing/coresight/coresight-platform.c @@ -75,6 +75,7 @@ coresight_find_csdev_by_fwnode(struct fwnode_handle *r_fwnode) } return csdev; } +EXPORT_SYMBOL_GPL(coresight_find_csdev_by_fwnode); #ifdef CONFIG_OF static inline bool of_coresight_legacy_ep_is_input(struct device_node *ep) diff --git a/drivers/hwtracing/coresight/coresight.c b/drivers/hwtracing/coresight/coresight.c index 546c97045afe..5aebdbe293f2 100644 --- a/drivers/hwtracing/coresight/coresight.c +++ b/drivers/hwtracing/coresight/coresight.c @@ -288,6 +288,7 @@ void coresight_set_assoc_ectdev_mutex(struct coresight_device *csdev, csdev->ect_dev = ect_csdev; mutex_unlock(&coresight_mutex); } +EXPORT_SYMBOL_GPL(coresight_set_assoc_ectdev_mutex); static int coresight_enable_sink(struct coresight_device *csdev, u32 mode, void *data) -- The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project 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=-15.7 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,SIGNED_OFF_BY,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 415C4C433E2 for ; Tue, 15 Sep 2020 10:52:56 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 92CD4206DB for ; 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Tue, 15 Sep 2020 10:43:33 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 5C946C43387 Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; spf=fail smtp.mailfrom=tingwei@codeaurora.org From: Tingwei Zhang To: Mathieu Poirier , Suzuki K Poulose , Alexander Shishkin , Mike Leach Subject: [PATCH v11 21/24] coresight: cti: allow cti to be built as a module Date: Tue, 15 Sep 2020 18:41:13 +0800 Message-Id: <20200915104116.16789-22-tingwei@codeaurora.org> X-Mailer: git-send-email 2.20.0 In-Reply-To: <20200915104116.16789-1-tingwei@codeaurora.org> References: <20200915104116.16789-1-tingwei@codeaurora.org> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200915_064341_457542_3BF50B66 X-CRM114-Status: GOOD ( 22.56 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: tsoni@codeaurora.org, Sai Prakash Ranjan , Kim Phillips , Mao Jinlong , Greg Kroah-Hartman , coresight@lists.linaro.org, Randy Dunlap , Mian Yousaf Kaukab , Russell King , linux-kernel@vger.kernel.org, Tingwei Zhang , Leo Yan , linux-arm-kernel@lists.infradead.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Allow to build coresight-cti as a module, for ease of development. - Kconfig becomes a tristate, to allow =m - append -core to source file name to allow module to be called coresight-cti by the Makefile - add an cti_remove function, for module unload - add a MODULE_DEVICE_TABLE for autoloading on boot - move cti_remove_conn_xrefs to cti_remove since all sysfs links have gone when system calls device_release. Signed-off-by: Tingwei Zhang Tested-by: Mike Leach Reviewed-by Mike Leach --- drivers/hwtracing/coresight/Kconfig | 5 ++++- drivers/hwtracing/coresight/Makefile | 6 +++--- .../{coresight-cti.c => coresight-cti-core.c} | 20 ++++++++++++++++++- .../hwtracing/coresight/coresight-platform.c | 1 + drivers/hwtracing/coresight/coresight.c | 1 + 5 files changed, 28 insertions(+), 5 deletions(-) rename drivers/hwtracing/coresight/{coresight-cti.c => coresight-cti-core.c} (98%) diff --git a/drivers/hwtracing/coresight/Kconfig b/drivers/hwtracing/coresight/Kconfig index f31778dd0b5d..b04aae2ceecc 100644 --- a/drivers/hwtracing/coresight/Kconfig +++ b/drivers/hwtracing/coresight/Kconfig @@ -136,7 +136,7 @@ config CORESIGHT_CPU_DEBUG module will be called coresight-cpu-debug. config CORESIGHT_CTI - bool "CoreSight Cross Trigger Interface (CTI) driver" + tristate "CoreSight Cross Trigger Interface (CTI) driver" depends on ARM || ARM64 help This driver provides support for CoreSight CTI and CTM components. @@ -147,6 +147,9 @@ config CORESIGHT_CTI halt compared to disabling sources and sinks normally in driver software. + To compile this driver as a module, choose M here: the + module will be called coresight-cti. + config CORESIGHT_CTI_INTEGRATION_REGS bool "Access CTI CoreSight Integration Registers" depends on CORESIGHT_CTI diff --git a/drivers/hwtracing/coresight/Makefile b/drivers/hwtracing/coresight/Makefile index 3dbd49a060dd..27034bd4d3c7 100644 --- a/drivers/hwtracing/coresight/Makefile +++ b/drivers/hwtracing/coresight/Makefile @@ -19,6 +19,6 @@ coresight-etm4x-y := coresight-etm4x-core.o coresight-etm4x-sysfs.o obj-$(CONFIG_CORESIGHT_STM) += coresight-stm.o obj-$(CONFIG_CORESIGHT_CPU_DEBUG) += coresight-cpu-debug.o obj-$(CONFIG_CORESIGHT_CATU) += coresight-catu.o -obj-$(CONFIG_CORESIGHT_CTI) += coresight-cti.o \ - coresight-cti-platform.o \ - coresight-cti-sysfs.o +obj-$(CONFIG_CORESIGHT_CTI) += coresight-cti.o +coresight-cti-y := coresight-cti-core.o coresight-cti-platform.o \ + coresight-cti-sysfs.o diff --git a/drivers/hwtracing/coresight/coresight-cti.c b/drivers/hwtracing/coresight/coresight-cti-core.c similarity index 98% rename from drivers/hwtracing/coresight/coresight-cti.c rename to drivers/hwtracing/coresight/coresight-cti-core.c index 38e785d913b0..d28eae93e55c 100644 --- a/drivers/hwtracing/coresight/coresight-cti.c +++ b/drivers/hwtracing/coresight/coresight-cti-core.c @@ -822,7 +822,6 @@ static void cti_device_release(struct device *dev) struct cti_drvdata *ect_item, *ect_tmp; mutex_lock(&ect_mutex); - cti_remove_conn_xrefs(drvdata); cti_pm_release(drvdata); /* remove from the list */ @@ -837,6 +836,18 @@ static void cti_device_release(struct device *dev) if (drvdata->csdev_release) drvdata->csdev_release(dev); } +static int __exit cti_remove(struct amba_device *adev) +{ + struct cti_drvdata *drvdata = dev_get_drvdata(&adev->dev); + + mutex_lock(&ect_mutex); + cti_remove_conn_xrefs(drvdata); + mutex_unlock(&ect_mutex); + + coresight_unregister(drvdata->csdev); + + return 0; +} static int cti_probe(struct amba_device *adev, const struct amba_id *id) { @@ -957,6 +968,8 @@ static const struct amba_id cti_ids[] = { { 0, 0}, }; +MODULE_DEVICE_TABLE(amba, cti_ids); + static struct amba_driver cti_driver = { .drv = { .name = "coresight-cti", @@ -964,6 +977,7 @@ static struct amba_driver cti_driver = { .suppress_bind_attrs = true, }, .probe = cti_probe, + .remove = cti_remove, .id_table = cti_ids, }; @@ -986,3 +1000,7 @@ static void __exit cti_exit(void) module_init(cti_init); module_exit(cti_exit); + +MODULE_AUTHOR("Mike Leach "); +MODULE_DESCRIPTION("Arm CoreSight CTI Driver"); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/hwtracing/coresight/coresight-platform.c b/drivers/hwtracing/coresight/coresight-platform.c index 227e234a2470..3629b7885aca 100644 --- a/drivers/hwtracing/coresight/coresight-platform.c +++ b/drivers/hwtracing/coresight/coresight-platform.c @@ -75,6 +75,7 @@ coresight_find_csdev_by_fwnode(struct fwnode_handle *r_fwnode) } return csdev; } +EXPORT_SYMBOL_GPL(coresight_find_csdev_by_fwnode); #ifdef CONFIG_OF static inline bool of_coresight_legacy_ep_is_input(struct device_node *ep) diff --git a/drivers/hwtracing/coresight/coresight.c b/drivers/hwtracing/coresight/coresight.c index 546c97045afe..5aebdbe293f2 100644 --- a/drivers/hwtracing/coresight/coresight.c +++ b/drivers/hwtracing/coresight/coresight.c @@ -288,6 +288,7 @@ void coresight_set_assoc_ectdev_mutex(struct coresight_device *csdev, csdev->ect_dev = ect_csdev; mutex_unlock(&coresight_mutex); } +EXPORT_SYMBOL_GPL(coresight_set_assoc_ectdev_mutex); static int coresight_enable_sink(struct coresight_device *csdev, u32 mode, void *data) -- The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel