From patchwork Wed Aug 31 20:50:14 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Loic Pallardy X-Patchwork-Id: 75120 Delivered-To: patch@linaro.org Received: by 10.140.29.52 with SMTP id a49csp532540qga; Wed, 31 Aug 2016 13:51:57 -0700 (PDT) X-Received: by 10.66.237.71 with SMTP id va7mr20445997pac.124.1472676716665; Wed, 31 Aug 2016 13:51:56 -0700 (PDT) Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id sl8si1457005pab.264.2016.08.31.13.51.56; Wed, 31 Aug 2016 13:51:56 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933880AbcHaUvm (ORCPT + 27 others); Wed, 31 Aug 2016 16:51:42 -0400 Received: from mx07-00178001.pphosted.com ([62.209.51.94]:2839 "EHLO mx07-00178001.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933795AbcHaUvg (ORCPT ); Wed, 31 Aug 2016 16:51:36 -0400 Received: from pps.filterd (m0046037.ppops.net [127.0.0.1]) by m0046037.ppops.net (8.16.0.11/8.16.0.11) with SMTP id u7VKnjBC008939; Wed, 31 Aug 2016 22:51:33 +0200 Received: from beta.dmz-eu.st.com (beta.dmz-eu.st.com [164.129.1.35]) by mx07-.pphosted.com with ESMTP id 255btaar10-1 (version=TLSv1 cipher=ECDHE-RSA-AES256-SHA bits=256 verify=NOT); Wed, 31 Aug 2016 22:51:33 +0200 Received: from zeta.dmz-eu.st.com (zeta.dmz-eu.st.com [164.129.230.9]) by beta.dmz-eu.st.com (STMicroelectronics) with ESMTP id 0BD1F38; Wed, 31 Aug 2016 20:51:33 +0000 (GMT) Received: from Webmail-eu.st.com (Safex1hubcas23.st.com [10.75.90.46]) by zeta.dmz-eu.st.com (STMicroelectronics) with ESMTP id E86C750E2; Wed, 31 Aug 2016 20:51:32 +0000 (GMT) Received: from localhost (10.129.5.21) by webmail-ga.st.com (10.75.90.48) with Microsoft SMTP Server (TLS) id 14.3.279.2; Wed, 31 Aug 2016 22:51:32 +0200 From: Loic Pallardy To: , , CC: , , , Subject: [PATCH v2 11/19] remoteproc: core: Add function to get resource table spare bytes information Date: Wed, 31 Aug 2016 22:50:14 +0200 Message-ID: <1472676622-32533-12-git-send-email-loic.pallardy@st.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1472676622-32533-1-git-send-email-loic.pallardy@st.com> References: <1472676622-32533-1-git-send-email-loic.pallardy@st.com> MIME-Version: 1.0 X-Originating-IP: [10.129.5.21] X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:, , definitions=2016-08-31_04:, , signatures=0 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Remoteproc needs to know if a resource table has spare resource allowing resoure table extension. This function parse resource table to detect spare resource. If any, it returns available spare bytes and index of spare resource. Signed-off-by: Loic Pallardy --- drivers/remoteproc/remoteproc_core.c | 29 +++++++++++++++++++++++++++++ 1 file changed, 29 insertions(+) -- 1.9.1 diff --git a/drivers/remoteproc/remoteproc_core.c b/drivers/remoteproc/remoteproc_core.c index ffb56c0..30e9c70 100644 --- a/drivers/remoteproc/remoteproc_core.c +++ b/drivers/remoteproc/remoteproc_core.c @@ -951,6 +951,35 @@ int rproc_request_resource(struct rproc *rproc, u32 type, u32 action, void *reso } EXPORT_SYMBOL(rproc_request_resource); +static int __get_rsc_tbl_spare_size(struct rproc *rproc, + struct resource_table *table_ptr, int len, + int *spare_index) +{ + struct device *dev = &rproc->dev; + int i; + + for (i = 0; i < table_ptr->num; i++) { + int offset = table_ptr->offset[i]; + struct fw_rsc_hdr *hdr = (void *)table_ptr + offset; + struct fw_rsc_spare *spare = (void *)hdr + sizeof(*hdr); + + dev_dbg(dev, "rsc: type %d\n", hdr->type); + + if (hdr->type >= RSC_LAST) { + dev_warn(dev, "unsupported resource %d\n", hdr->type); + continue; + } + + if (hdr->type != RSC_SPARE) + continue; + + *spare_index = i; + return spare->len; + } + + return 0; +} + static int __verify_rsc_tbl_entry(struct rproc *rproc, struct rproc_request_resource *request, struct resource_table *table, int size)