From patchwork Tue Jun 23 16:41:48 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: 11621059 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 877FA913 for ; Tue, 23 Jun 2020 16:48:31 +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 5E9F7204EA for ; Tue, 23 Jun 2020 16:48:31 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="eioPT0yE" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 5E9F7204EA 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=merlin.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=q8yBtLtkjbYdvd4RmSJRH2/OTGc7QfG27UcnnhYMdk8=; b=eioPT0yEAyY2QgwwKe3l2NIM0 mE9Roojgot5B9wTw7TbpAAAmKw7/jce888AkKNinwXWTDjF2r1rccph8nMRuzNBc71MwyQ+NLUFI5 mOClBT1qbF0pizahxqeVD/gKkO3OxVpup/1X8amWr39mPEjvrfBshlS/GZyxXa/kZqmVanL2S5OKU jf4PFq6NN4J/YDuvAl4SOQbk5lNcxfCVTTNwH1/FFjuBJ8uMzj2anPIaa6EFXnLeh/WBWk1IsiFOP FFBMtkMGfcqKlK4sJk29VFxk4J0tQr0QOVv7GTqY5/Pi1yGfmo5TcKhx4G7P4W0v+B+dUOVS0frWi UO/xiXQww==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1jnm3p-0005kj-Jq; Tue, 23 Jun 2020 16:46:13 +0000 Received: from mx2.suse.de ([195.135.220.15]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1jnm2p-0005L6-BA; Tue, 23 Jun 2020 16:45:15 +0000 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.221.27]) by mx2.suse.de (Postfix) with ESMTP id 1B8EDAECE; Tue, 23 Jun 2020 16:45:08 +0000 (UTC) From: Nicolas Saenz Julienne To: gregkh@linuxfoundation.org Subject: [PATCH 02/50] staging: mmal-vchiq: Allocate and free components as required Date: Tue, 23 Jun 2020 18:41:48 +0200 Message-Id: <20200623164235.29566-3-nsaenzjulienne@suse.de> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20200623164235.29566-1-nsaenzjulienne@suse.de> References: <20200623164235.29566-1-nsaenzjulienne@suse.de> MIME-Version: 1.0 X-Spam-Note: CRM114 invocation failed X-Spam-Score: -2.3 (--) X-Spam-Report: SpamAssassin version 3.4.4 on merlin.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, Jacopo Mondi , kernel-list@raspberrypi.com, linux-kernel@vger.kernel.org, Nicolas Saenz Julienne , laurent.pinchart@ideasonboard.com, Dave Stevenson , linux-arm-kernel@lists.infradead.org, linux-rpi-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org From: Dave Stevenson The existing code assumed that there would only ever be 4 components, and never freed the entries once used. Allow arbitrary creation and destruction of components. Signed-off-by: Dave Stevenson Signed-off-by: Jacopo Mondi Signed-off-by: Nicolas Saenz Julienne --- .../vc04_services/vchiq-mmal/mmal-vchiq.c | 29 ++++++++++++------- .../vc04_services/vchiq-mmal/mmal-vchiq.h | 1 + 2 files changed, 20 insertions(+), 10 deletions(-) diff --git a/drivers/staging/vc04_services/vchiq-mmal/mmal-vchiq.c b/drivers/staging/vc04_services/vchiq-mmal/mmal-vchiq.c index daf21087f8f9..cbe262b111fe 100644 --- a/drivers/staging/vc04_services/vchiq-mmal/mmal-vchiq.c +++ b/drivers/staging/vc04_services/vchiq-mmal/mmal-vchiq.c @@ -32,8 +32,11 @@ #define USE_VCHIQ_ARM #include "interface/vchi/vchi.h" -/* maximum number of components supported */ -#define VCHIQ_MMAL_MAX_COMPONENTS 4 +/* + * maximum number of components supported. + * This matches the maximum permitted by default on the VPU + */ +#define VCHIQ_MMAL_MAX_COMPONENTS 64 /*#define FULL_MSG_DUMP 1*/ @@ -168,8 +171,6 @@ struct vchiq_mmal_instance { /* protect accesses to context_map */ struct mutex context_map_lock; - /* component to use next */ - int component_idx; struct vchiq_mmal_component component[VCHIQ_MMAL_MAX_COMPONENTS]; /* ordered workqueue to process all bulk operations */ @@ -1626,18 +1627,24 @@ int vchiq_mmal_component_init(struct vchiq_mmal_instance *instance, { int ret; int idx; /* port index */ - struct vchiq_mmal_component *component; + struct vchiq_mmal_component *component = NULL; if (mutex_lock_interruptible(&instance->vchiq_mutex)) return -EINTR; - if (instance->component_idx == VCHIQ_MMAL_MAX_COMPONENTS) { + for (idx = 0; idx < VCHIQ_MMAL_MAX_COMPONENTS; idx++) { + if (!instance->component[idx].in_use) { + component = &instance->component[idx]; + component->in_use = 1; + break; + } + } + + if (!component) { ret = -EINVAL; /* todo is this correct error? */ goto unlock; } - component = &instance->component[instance->component_idx]; - ret = create_component(instance, component, name); if (ret < 0) { pr_err("%s: failed to create component %d (Not enough GPU mem?)\n", @@ -1688,8 +1695,6 @@ int vchiq_mmal_component_init(struct vchiq_mmal_instance *instance, goto release_component; } - instance->component_idx++; - *component_out = component; mutex_unlock(&instance->vchiq_mutex); @@ -1699,6 +1704,8 @@ int vchiq_mmal_component_init(struct vchiq_mmal_instance *instance, release_component: destroy_component(instance, component); unlock: + if (component) + component->in_use = 0; mutex_unlock(&instance->vchiq_mutex); return ret; @@ -1721,6 +1728,8 @@ int vchiq_mmal_component_finalise(struct vchiq_mmal_instance *instance, ret = destroy_component(instance, component); + component->in_use = 0; + mutex_unlock(&instance->vchiq_mutex); return ret; diff --git a/drivers/staging/vc04_services/vchiq-mmal/mmal-vchiq.h b/drivers/staging/vc04_services/vchiq-mmal/mmal-vchiq.h index 47897e81ec58..4e34728d87e5 100644 --- a/drivers/staging/vc04_services/vchiq-mmal/mmal-vchiq.h +++ b/drivers/staging/vc04_services/vchiq-mmal/mmal-vchiq.h @@ -82,6 +82,7 @@ struct vchiq_mmal_port { }; struct vchiq_mmal_component { + u32 in_use:1; u32 enabled:1; u32 handle; /* VideoCore handle for component */ u32 inputs; /* Number of input ports */