From patchwork Wed May 27 11:53:18 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nicolas Saenz Julienne X-Patchwork-Id: 11572703 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 1F15E92A for ; Wed, 27 May 2020 12:00:46 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id ED79A207CB for ; Wed, 27 May 2020 12:00:45 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="HAU5+tSm" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org ED79A207CB Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=suse.de Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=y58NEPxaoQMozBmbODaxwklKek9yBMm/OqoW53fGThE=; b=HAU5+tSmUFJYUr jsFRRnHDMKos7gfMBHco1n8CpEcd/eeNZj0tGUWulj0pin9o9lN8LFS0tIpeIeD2CXaL0oeXPj3bu 4I3WbccUMD5G/vhrAaIILamuwfO9xPkr9B04BQ9eyhj1+5+IDOxXKhb9zH2ZS02I0vSbvu/gh1n7B TMfUqippTziZ8YRFZbHqF57DVJeZyTq5JfLqAWih28ayAg+U5PKa+B/gOhrCESRnzWUxfuGUbks3b LNQKXvuGAp2UnpAbE75ZLMzB6b90q4b6Xfcd7euZTOVV8UO6vf3N4N8WRTXLkArWsgWWx5l3nU09d 53AN0Flp0/mWZnCpSVsQ==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1jdujc-00085b-HH; Wed, 27 May 2020 12:00:36 +0000 Received: from mx2.suse.de ([195.135.220.15]) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1jdudd-0006h0-3b; Wed, 27 May 2020 11:54:27 +0000 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.220.254]) by mx2.suse.de (Postfix) with ESMTP id A8046AC5B; Wed, 27 May 2020 11:54:25 +0000 (UTC) From: Nicolas Saenz Julienne To: bcm-kernel-feedback-list@broadcom.com, linux-rpi-kernel@lists.infradead.org, linux-arm-kernel@lists.infradead.org, Nicolas Saenz Julienne , Florian Fainelli , Ray Jui , Scott Branden Subject: [RFC 13/50] staging: vchi: Get rid of struct vchi_instance_handle Date: Wed, 27 May 2020 13:53:18 +0200 Message-Id: <20200527115400.31391-14-nsaenzjulienne@suse.de> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20200527115400.31391-1-nsaenzjulienne@suse.de> References: <20200527115400.31391-1-nsaenzjulienne@suse.de> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200527_045425_450217_BF16B5F5 X-CRM114-Status: GOOD ( 21.34 ) X-Spam-Score: -2.3 (--) X-Spam-Report: SpamAssassin version 3.4.4 on bombadil.infradead.org summary: Content analysis details: (-2.3 points) pts rule name description ---- ---------------------- -------------------------------------------------- -2.3 RCVD_IN_DNSWL_MED RBL: Sender listed at https://www.dnswl.org/, medium trust [195.135.220.15 listed in list.dnswl.org] 0.0 RCVD_IN_MSPIKE_H3 RBL: Good reputation (+3) [195.135.220.15 listed in wl.mailspike.net] -0.0 SPF_PASS SPF: sender matches SPF record 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record 0.0 RCVD_IN_MSPIKE_WL Mailspike good senders 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: devel@driverdev.osuosl.org, kernel-list@raspberrypi.com, laurent.pinchart@ideasonboard.com, linux-kernel@vger.kernel.org, gregkh@linuxfoundation.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org The idea behind this was to create an opaque handle to struct vchiq_instance. This can be achieved without creating a new type by means of a forward declaration of struct vchiq_instance. This saves us from a lot of useless casting and overall simplifies code. Signed-off-by: Nicolas Saenz Julienne --- .../bcm2835-audio/bcm2835-vchiq.c | 20 ++++++------- .../vc04_services/bcm2835-audio/bcm2835.h | 2 +- .../vc04_services/interface/vchi/vchi.h | 12 ++++---- .../interface/vchiq_arm/vchiq_shim.c | 30 ++++++------------- .../staging/vc04_services/vc-sm-cma/vc_sm.c | 8 ++--- .../vc04_services/vc-sm-cma/vc_sm_cma_vchi.c | 4 +-- .../vc04_services/vc-sm-cma/vc_sm_cma_vchi.h | 2 +- .../vc04_services/vchiq-mmal/mmal-vchiq.c | 8 ++--- 8 files changed, 37 insertions(+), 49 deletions(-) diff --git a/drivers/staging/vc04_services/bcm2835-audio/bcm2835-vchiq.c b/drivers/staging/vc04_services/bcm2835-audio/bcm2835-vchiq.c index 73144f1ce45e..8c9390153a26 100644 --- a/drivers/staging/vc04_services/bcm2835-audio/bcm2835-vchiq.c +++ b/drivers/staging/vc04_services/bcm2835-audio/bcm2835-vchiq.c @@ -122,7 +122,7 @@ static void audio_vchi_callback(void *param, } static int -vc_vchi_audio_init(struct vchi_instance_handle *vchi_instance, +vc_vchi_audio_init(struct vchiq_instance *vchiq_instance, struct bcm2835_audio_instance *instance) { struct service_creation params = { @@ -134,7 +134,7 @@ vc_vchi_audio_init(struct vchi_instance_handle *vchi_instance, int status; /* Open the VCHI service connections */ - status = vchi_service_open(vchi_instance, ¶ms, + status = vchi_service_open(vchiq_instance, ¶ms, &instance->vchi_handle); if (status) { @@ -173,20 +173,20 @@ int bcm2835_new_vchi_ctx(struct device *dev, struct bcm2835_vchi_ctx *vchi_ctx) int ret; /* Initialize and create a VCHI connection */ - ret = vchi_initialise(&vchi_ctx->vchi_instance); + ret = vchi_initialise(&vchi_ctx->instance); if (ret) { dev_err(dev, "failed to initialise VCHI instance (ret=%d)\n", ret); return -EIO; } - ret = vchi_connect(vchi_ctx->vchi_instance); + ret = vchi_connect(vchi_ctx->instance); if (ret) { dev_dbg(dev, "failed to connect VCHI instance (ret=%d)\n", ret); - kfree(vchi_ctx->vchi_instance); - vchi_ctx->vchi_instance = NULL; + kfree(vchi_ctx->instance); + vchi_ctx->instance = NULL; return -EIO; } @@ -196,10 +196,10 @@ int bcm2835_new_vchi_ctx(struct device *dev, struct bcm2835_vchi_ctx *vchi_ctx) void bcm2835_free_vchi_ctx(struct bcm2835_vchi_ctx *vchi_ctx) { - /* Close the VCHI connection - it will also free vchi_instance */ - WARN_ON(vchi_disconnect(vchi_ctx->vchi_instance)); + /* Close the VCHI connection - it will also free vchi_ctx->instance */ + WARN_ON(vchi_disconnect(vchi_ctx->instance)); - vchi_ctx->vchi_instance = NULL; + vchi_ctx->instance = NULL; } int bcm2835_audio_open(struct bcm2835_alsa_stream *alsa_stream) @@ -217,7 +217,7 @@ int bcm2835_audio_open(struct bcm2835_alsa_stream *alsa_stream) instance->alsa_stream = alsa_stream; alsa_stream->instance = instance; - err = vc_vchi_audio_init(vchi_ctx->vchi_instance, + err = vc_vchi_audio_init(vchi_ctx->instance, instance); if (err < 0) goto free_instance; diff --git a/drivers/staging/vc04_services/bcm2835-audio/bcm2835.h b/drivers/staging/vc04_services/bcm2835-audio/bcm2835.h index d2fe8d36ab7d..2a94e825194f 100644 --- a/drivers/staging/vc04_services/bcm2835-audio/bcm2835.h +++ b/drivers/staging/vc04_services/bcm2835-audio/bcm2835.h @@ -44,7 +44,7 @@ enum snd_bcm2835_ctrl { }; struct bcm2835_vchi_ctx { - struct vchi_instance_handle *vchi_instance; + struct vchiq_instance *instance; }; /* definition of the chip-specific record */ diff --git a/drivers/staging/vc04_services/interface/vchi/vchi.h b/drivers/staging/vc04_services/interface/vchi/vchi.h index 1daef5ad70f1..6b73d8fb394a 100644 --- a/drivers/staging/vc04_services/interface/vchi/vchi.h +++ b/drivers/staging/vc04_services/interface/vchi/vchi.h @@ -49,8 +49,8 @@ struct service_creation { void *callback_param; }; -// Opaque handle for a VCHI instance -struct vchi_instance_handle; +// Opaque handle for a VCHIQ instance +struct vchiq_instance; // Opaque handle for a server or client struct vchi_service_handle; @@ -61,19 +61,19 @@ struct vchi_service_handle; *****************************************************************************/ // Routine used to initialise the vchi on both local + remote connections -extern int32_t vchi_initialise(struct vchi_instance_handle **instance_handle); +extern int32_t vchi_initialise(struct vchiq_instance **instance); -extern int32_t vchi_connect(struct vchi_instance_handle *instance_handle); +extern int32_t vchi_connect(struct vchiq_instance *instance); //When this is called, ensure that all services have no data pending. //Bulk transfers can remain 'queued' -extern int32_t vchi_disconnect(struct vchi_instance_handle *instance_handle); +extern int32_t vchi_disconnect(struct vchiq_instance *instance); /****************************************************************************** * Global service API *****************************************************************************/ // Routine to open a named service -extern int32_t vchi_service_open(struct vchi_instance_handle *instance_handle, +extern int32_t vchi_service_open(struct vchiq_instance *instance, struct service_creation *setup, struct vchi_service_handle **handle); diff --git a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_shim.c b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_shim.c index 54c2492b7c83..8758704d61c9 100644 --- a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_shim.c +++ b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_shim.c @@ -287,7 +287,7 @@ EXPORT_SYMBOL(vchi_msg_hold); /*********************************************************** * Name: vchi_initialise * - * Arguments: struct vchi_instance_handle **instance_handle + * Arguments: struct vchiq_instance **instance * * Description: Initialises the hardware but does not transmit anything * When run as a Host App this will be called twice hence the need @@ -297,23 +297,16 @@ EXPORT_SYMBOL(vchi_msg_hold); * ***********************************************************/ -int32_t vchi_initialise(struct vchi_instance_handle **instance_handle) +int32_t vchi_initialise(struct vchiq_instance **instance) { - struct vchiq_instance *instance; - enum vchiq_status status; - - status = vchiq_initialise(&instance); - - *instance_handle = (struct vchi_instance_handle *)instance; - - return status; + return vchiq_initialise(instance); } EXPORT_SYMBOL(vchi_initialise); /*********************************************************** * Name: vchi_connect * - * Arguments: struct vchi_instance_handle *instance_handle + * Arguments: struct vchiq_instance *instance * * Description: Starts the command service on each connection, * causing INIT messages to be pinged back and forth @@ -321,10 +314,8 @@ EXPORT_SYMBOL(vchi_initialise); * Returns: 0 if successful, failure otherwise * ***********************************************************/ -int32_t vchi_connect(struct vchi_instance_handle *instance_handle) +int32_t vchi_connect(struct vchiq_instance *instance) { - struct vchiq_instance *instance = (struct vchiq_instance *)instance_handle; - return vchiq_connect(instance); } EXPORT_SYMBOL(vchi_connect); @@ -332,7 +323,7 @@ EXPORT_SYMBOL(vchi_connect); /*********************************************************** * Name: vchi_disconnect * - * Arguments: struct vchi_instance_handle *instance_handle + * Arguments: struct vchiq_instance *instance * * Description: Stops the command service on each connection, * causing DE-INIT messages to be pinged back and forth @@ -340,10 +331,8 @@ EXPORT_SYMBOL(vchi_connect); * Returns: 0 if successful, failure otherwise * ***********************************************************/ -int32_t vchi_disconnect(struct vchi_instance_handle *instance_handle) +int32_t vchi_disconnect(struct vchiq_instance *instance) { - struct vchiq_instance *instance = (struct vchiq_instance *)instance_handle; - return vchiq_shutdown(instance); } EXPORT_SYMBOL(vchi_disconnect); @@ -352,7 +341,7 @@ EXPORT_SYMBOL(vchi_disconnect); * Name: vchi_service_open * Name: vchi_service_create * - * Arguments: struct vchi_instance_handle *instance_handle + * Arguments: struct vchiq_instance *instance * struct service_creation *setup, * struct vchi_service_handle **handle * @@ -446,11 +435,10 @@ static void service_free(struct shim_service *service) } } -int32_t vchi_service_open(struct vchi_instance_handle *instance_handle, +int32_t vchi_service_open(struct vchiq_instance *instance, struct service_creation *setup, struct vchi_service_handle **handle) { - struct vchiq_instance *instance = (struct vchiq_instance *)instance_handle; struct shim_service *service = service_alloc(instance, setup); *handle = (struct vchi_service_handle *)service; diff --git a/drivers/staging/vc04_services/vc-sm-cma/vc_sm.c b/drivers/staging/vc04_services/vc-sm-cma/vc_sm.c index cd5fb561debb..3f95ea90c08a 100644 --- a/drivers/staging/vc04_services/vc-sm-cma/vc_sm.c +++ b/drivers/staging/vc04_services/vc-sm-cma/vc_sm.c @@ -1505,7 +1505,7 @@ static const struct file_operations vc_sm_ops = { static void vc_sm_connected_init(void) { int ret; - struct vchi_instance_handle *vchi_instance; + struct vchiq_instance *instance; struct vc_sm_version version; struct vc_sm_result_t version_result; @@ -1515,7 +1515,7 @@ static void vc_sm_connected_init(void) * Initialize and create a VCHI connection for the shared memory service * running on videocore. */ - ret = vchi_initialise(&vchi_instance); + ret = vchi_initialise(&instance); if (ret) { pr_err("[%s]: failed to initialise VCHI instance (ret=%d)\n", __func__, ret); @@ -1523,7 +1523,7 @@ static void vc_sm_connected_init(void) return; } - ret = vchi_connect(vchi_instance); + ret = vchi_connect(instance); if (ret) { pr_err("[%s]: failed to connect VCHI instance (ret=%d)\n", __func__, ret); @@ -1532,7 +1532,7 @@ static void vc_sm_connected_init(void) } /* Initialize an instance of the shared memory service. */ - sm_state->sm_handle = vc_sm_cma_vchi_init(vchi_instance, 1, + sm_state->sm_handle = vc_sm_cma_vchi_init(instance, 1, vc_sm_vpu_event); if (!sm_state->sm_handle) { pr_err("[%s]: failed to initialize shared memory service\n", diff --git a/drivers/staging/vc04_services/vc-sm-cma/vc_sm_cma_vchi.c b/drivers/staging/vc04_services/vc-sm-cma/vc_sm_cma_vchi.c index cd3f62844616..b142fadb2bb5 100644 --- a/drivers/staging/vc04_services/vc-sm-cma/vc_sm_cma_vchi.c +++ b/drivers/staging/vc04_services/vc-sm-cma/vc_sm_cma_vchi.c @@ -285,7 +285,7 @@ static void vc_sm_cma_vchi_callback(void *param, } } -struct sm_instance *vc_sm_cma_vchi_init(struct vchi_instance_handle *vchi_instance, +struct sm_instance *vc_sm_cma_vchi_init(struct vchiq_instance *vchiq_instance, unsigned int num_connections, vpu_event_cb vpu_event) { @@ -328,7 +328,7 @@ struct sm_instance *vc_sm_cma_vchi_init(struct vchi_instance_handle *vchi_instan .callback_param = instance, }; - status = vchi_service_open(vchi_instance, + status = vchi_service_open(vchiq_instance, ¶ms, &instance->vchi_handle[i]); if (status) { pr_err("%s: failed to open VCHI service (%d)", diff --git a/drivers/staging/vc04_services/vc-sm-cma/vc_sm_cma_vchi.h b/drivers/staging/vc04_services/vc-sm-cma/vc_sm_cma_vchi.h index e8db34bd1e91..44cc389364f4 100644 --- a/drivers/staging/vc04_services/vc-sm-cma/vc_sm_cma_vchi.h +++ b/drivers/staging/vc04_services/vc-sm-cma/vc_sm_cma_vchi.h @@ -28,7 +28,7 @@ typedef void (*vpu_event_cb)(struct sm_instance *instance, /* * Initialize the shared memory service, opens up vchi connection to talk to it. */ -struct sm_instance *vc_sm_cma_vchi_init(struct vchi_instance_handle *vchi_instance, +struct sm_instance *vc_sm_cma_vchi_init(struct vchiq_instance *vchiq_instance, unsigned int num_connections, vpu_event_cb vpu_event); diff --git a/drivers/staging/vc04_services/vchiq-mmal/mmal-vchiq.c b/drivers/staging/vc04_services/vchiq-mmal/mmal-vchiq.c index 4c89bc0bec15..3504ea8aed4f 100644 --- a/drivers/staging/vc04_services/vchiq-mmal/mmal-vchiq.c +++ b/drivers/staging/vc04_services/vchiq-mmal/mmal-vchiq.c @@ -2098,7 +2098,7 @@ int vchiq_mmal_init(struct vchiq_mmal_instance **out_instance) { int status; struct vchiq_mmal_instance *instance; - static struct vchi_instance_handle *vchi_instance; + static struct vchiq_instance *vchiq_instance; struct service_creation params = { .version = VCHI_VERSION_EX(VC_MMAL_VER, VC_MMAL_MIN_VER), .service_id = VC_MMAL_SERVER_NAME, @@ -2120,14 +2120,14 @@ int vchiq_mmal_init(struct vchiq_mmal_instance **out_instance) BUILD_BUG_ON(sizeof(struct mmal_port) != 64); /* create a vchi instance */ - status = vchi_initialise(&vchi_instance); + status = vchi_initialise(&vchiq_instance); if (status) { pr_err("Failed to initialise VCHI instance (status=%d)\n", status); return -EIO; } - status = vchi_connect(vchi_instance); + status = vchi_connect(vchiq_instance); if (status) { pr_err("Failed to connect VCHI instance (status=%d)\n", status); return -EIO; @@ -2152,7 +2152,7 @@ int vchiq_mmal_init(struct vchiq_mmal_instance **out_instance) if (!instance->bulk_wq) goto err_free; - status = vchi_service_open(vchi_instance, ¶ms, &instance->handle); + status = vchi_service_open(vchiq_instance, ¶ms, &instance->handle); if (status) { pr_err("Failed to open VCHI service connection (status=%d)\n", status);