From patchwork Tue Sep 29 08:54:28 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Diana Madalina Craciun X-Patchwork-Id: 11805309 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 3B8156CB for ; Tue, 29 Sep 2020 08:57:05 +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 E9FA7206B5 for ; Tue, 29 Sep 2020 08:57:04 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="TvnHjT/T" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org E9FA7206B5 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=oss.nxp.com 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:MIME-Version:Cc:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id: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:In-Reply-To:References:List-Owner; bh=7cJ1HKLmkAEhddcTssAEdR5vr2HsPln2BddYOnhPjX4=; b=TvnHjT/TjVc2qgoXxzbJty00R/ ViYEnXZr5Io7+YrrrEJrLesOo4pxn40udLEc30HaE4VjZxTziTyeiRFf5Lw90wJ0ObY/pkvogzeUx dAgv8bNjI3z7hqOj3AWbeXTk9a7Ct4t3qlkGMFLTGaoRE73eqAIRNkcqiEJwrI4sPR2uxcFOJqD36 jox9wefnDEewTJJ4LJsyNPngCGsYFyRjgHy+QLeU54obVCC9ph9xfVN6NbDeoz8mPUaYR2cFhvJpe Y7PxVBz3H78emZMgQWGWpQYnTxdORqI4sSJNfMJ4NGxuhlVvEsICQ57RaNHm4jnV8XlQ7lpWu/0Gn RbJc44vQ==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1kNBPh-0003EC-VG; Tue, 29 Sep 2020 08:55:10 +0000 Received: from inva021.nxp.com ([92.121.34.21]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1kNBPe-0003An-PA for linux-arm-kernel@lists.infradead.org; Tue, 29 Sep 2020 08:55:07 +0000 Received: from inva021.nxp.com (localhost [127.0.0.1]) by inva021.eu-rdc02.nxp.com (Postfix) with ESMTP id B7BB3201589; Tue, 29 Sep 2020 10:55:04 +0200 (CEST) Received: from inva024.eu-rdc02.nxp.com (inva024.eu-rdc02.nxp.com [134.27.226.22]) by inva021.eu-rdc02.nxp.com (Postfix) with ESMTP id AB56B2000AA; Tue, 29 Sep 2020 10:55:04 +0200 (CEST) Received: from fsr-ub1864-111.ea.freescale.net (fsr-ub1864-111.ea.freescale.net [10.171.82.141]) by inva024.eu-rdc02.nxp.com (Postfix) with ESMTP id 5818F2032C; Tue, 29 Sep 2020 10:55:04 +0200 (CEST) From: Diana Craciun To: linux-kernel@vger.kernel.org, laurentiu.tudor@nxp.com Subject: [PATCH v5 00/13] bus/fsl-mc: Extend mc-bus driver functionalities in preparation for mc-bus VFIO support Date: Tue, 29 Sep 2020 11:54:28 +0300 Message-Id: <20200929085441.17448-1-diana.craciun@oss.nxp.com> X-Mailer: git-send-email 2.17.1 X-Virus-Scanned: ClamAV using ClamSMTP X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200929_045506_934378_6F3AF3F1 X-CRM114-Status: GOOD ( 13.19 ) X-Spam-Score: -0.7 (/) X-Spam-Report: SpamAssassin version 3.4.4 on merlin.infradead.org summary: Content analysis details: (-0.7 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.7 RCVD_IN_DNSWL_LOW RBL: Sender listed at https://www.dnswl.org/, low trust [92.121.34.21 listed in list.dnswl.org] -0.0 SPF_PASS SPF: sender matches SPF record 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record 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: gregkh@linuxfoundation.org, Diana Craciun , linux-arm-kernel@lists.infradead.org, stuyoder@gmail.com, leoyang.li@nxp.com MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org The vfio-mc bus driver needs some additional services to be exported by the mc-bus driver like: - a way to reset the DPRC container - driver_override support - functions to setup/tear down a DPRC - functions for allocating the pool of interrupts. In case of VFIO the interrupts are not configured at probe time, but later by userspace request v4 -> v5 - dprc_celanup should not fail v3 -> v4 - Rebased on the latest kernel. - Exported a dprc_remove function v2 -> v3 - Add a new version for dprc_get_obj_region - Export the cacheability bus specific bits defines v1 -> v2 - Remove driver_override propagation through various functions - Cache the DPRC API version The patches are related with "vfio/fsl-mc: VFIO support for FSL-MC devices" patches, but the series were split because they are targeting different subsystems. However, the mc-bus patches may suffer changes when addressing the VFIO review comments. The patches do not address the comment regarding moving driver_override in the core code. I prefer not to tie these patches on that change and address that separately. Bharat Bhushan (3): bus/fsl-mc: add support for 'driver_override' in the mc-bus bus/fsl-mc: Add dprc-reset-container support bus/fsl-mc: Extend ICID size from 16bit to 32bit Diana Craciun (10): bus/fsl-mc: Do no longer export the total number of irqs outside dprc_scan_objects bus/fsl-mc: Add a new parameter to dprc_scan_objects function bus/fsl-mc: Set the QMAN/BMAN region flags bus/fsl-mc: Cache the DPRC API version bus/fsl-mc: Export dprc_scan/dprc_remove functions to be used by multiple entities bus/fsl-mc: Export a cleanup function for DPRC bus/fsl-mc: Add a container setup function bus/fsl_mc: Do not rely on caller to provide non NULL mc_io bus/fsl-mc: Export IRQ pool handling functions to be used by VFIO bus/fsl-mc: Add a new version for dprc_get_obj_region command drivers/bus/fsl-mc/dprc-driver.c | 190 ++++++++++++++++---------- drivers/bus/fsl-mc/dprc.c | 141 +++++++++++++++---- drivers/bus/fsl-mc/fsl-mc-allocator.c | 12 +- drivers/bus/fsl-mc/fsl-mc-bus.c | 64 ++++++++- drivers/bus/fsl-mc/fsl-mc-private.h | 31 ++--- drivers/bus/fsl-mc/mc-io.c | 7 +- include/linux/fsl/mc.h | 41 +++++- 7 files changed, 359 insertions(+), 127 deletions(-) Reviewed-by: Laurentiu Tudor Acked-by: Laurentiu Tudor