From patchwork Tue Aug 15 15:27:04 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Amit Singh Tomar X-Patchwork-Id: 13353914 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org 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 smtp.lore.kernel.org (Postfix) with ESMTPS id B071BC04A6A for ; Tue, 15 Aug 2023 15:28:37 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:CC:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=3EDqXLZDoGSaMjtfgGd1HSY7AGIIJpZC3cDtlXOwz3E=; b=MENttnYSZ5EVAH AB8DDoCSzLQMp4wuMsIhIWDHOXOrM7LKeLFQAspPfDTODu1N/j78Xd2A2HqLQqMXcprJOoehrwAlz QVx0Gh27JqV5iNcrlLfnKoXdJ1ufGqyWX6E80H2G4aBQgsLA08bUql/wB+wBAq8MG6kjYZ8SY1Guq peLEFA0sDaqUabXFrdGJPEP6UOxK8RbiMxye2NB8RTIK7StASw6KdTI+MmBfQEazFLPCu1f16zGgS 0SiCtiNJripwqIAm40CfiE5BWviyTz//h46/EOL7NOUXPQKkFv40WjvdVzoUa5V039UsINYrdds8z g5WvrRl/zjy0GgNWhxWQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1qVvxr-001rCc-21; Tue, 15 Aug 2023 15:28:11 +0000 Received: from mx0b-0016f401.pphosted.com ([67.231.156.173]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1qVvxi-001r9r-0E for linux-arm-kernel@lists.infradead.org; Tue, 15 Aug 2023 15:28:05 +0000 Received: from pps.filterd (m0045851.ppops.net [127.0.0.1]) by mx0b-0016f401.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 37FAH7rf003857; Tue, 15 Aug 2023 08:27:55 -0700 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=marvell.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : mime-version : content-transfer-encoding : content-type; s=pfpt0220; bh=p/OcC2JAIbZW0kg2Ug7j+/hs6aTTsB0s76/sSxAMZqM=; b=ZWZsCyi2lyn/kqnHQfCov/v8UFejV/8GF9jhgrxEndYn96R63U3DOMXmzDABUv4hJ0bn P3HF6MrX5zQfHXzujUcRWGS6zJEXL32xEMxRLn0T6RRcTrwMjxtLypKMIUJBT0uZYoTJ DVCupRSYJ3y1Bn5/ZdNSa4eet4651ezGgXh92VX+1q65IYKfOKLU0HrSdnhJngdpddD1 N6FsCdXoRaR+TThfS2ja6QcnqGGZNnfIpxOL6Tk6z405d/g7aUHBSoIq6Rean4nC+GwY qYSgGqaqP+zXC/RCyWG9rvMHgASqodvef1KsVDj74cnXBxYeHCwsxhKYNPox92/WLfvX mA== Received: from dc5-exch02.marvell.com ([199.233.59.182]) by mx0b-0016f401.pphosted.com (PPS) with ESMTPS id 3se9kjajuu-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-SHA384 bits=256 verify=NOT); Tue, 15 Aug 2023 08:27:55 -0700 Received: from DC5-EXCH01.marvell.com (10.69.176.38) by DC5-EXCH02.marvell.com (10.69.176.39) with Microsoft SMTP Server (TLS) id 15.0.1497.48; Tue, 15 Aug 2023 08:27:53 -0700 Received: from maili.marvell.com (10.69.176.80) by DC5-EXCH01.marvell.com (10.69.176.38) with Microsoft SMTP Server id 15.0.1497.48 via Frontend Transport; Tue, 15 Aug 2023 08:27:53 -0700 Received: from localhost.localdomain (unknown [10.28.36.167]) by maili.marvell.com (Postfix) with ESMTP id 6FF1A3F703F; Tue, 15 Aug 2023 08:27:50 -0700 (PDT) From: Amit Singh Tomar To: , CC: , , , , , , Amit Singh Tomar Subject: [RFC 04/12] fs/resctrl: Obtain CPBM upon priority partition presence Date: Tue, 15 Aug 2023 20:57:04 +0530 Message-ID: <20230815152712.1760046-5-amitsinght@marvell.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230815152712.1760046-1-amitsinght@marvell.com> References: <20230815152712.1760046-1-amitsinght@marvell.com> MIME-Version: 1.0 X-Proofpoint-GUID: 1_wlpT1GBG-hMikF_Phai7NmtANMrjKb X-Proofpoint-ORIG-GUID: 1_wlpT1GBG-hMikF_Phai7NmtANMrjKb X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.267,Aquarius:18.0.957,Hydra:6.0.601,FMLib:17.11.176.26 definitions=2023-08-15_16,2023-08-15_02,2023-05-22_02 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230815_082802_224652_9CB913A6 X-CRM114-Status: GOOD ( 14.61 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Resource control group's "schemata" file represents the cache portion bit map (XXXX), parsed from buffer with "L3:0=XXXX" format. Now, with the introduction of priority control, "schemata" file format has changed to "L3:0=XXXX,X", where cpbm (XXXX) is split from priority mask(X) using using delimiter ",". With this change, CPBM is properly fetched from schemata file when priority partition support is present. Signed-off-by: Amit Singh Tomar --- fs/resctrl/ctrlmondata.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/fs/resctrl/ctrlmondata.c b/fs/resctrl/ctrlmondata.c index 27d8bc25a4cb..b19ac2509e38 100644 --- a/fs/resctrl/ctrlmondata.c +++ b/fs/resctrl/ctrlmondata.c @@ -108,6 +108,9 @@ static bool cbm_validate(char *buf, u32 *data, struct rdt_resource *r) unsigned int cbm_len = r->cache.cbm_len; int ret; + if (r->priority_cap) + buf = strsep(&buf, ","); + ret = kstrtoul(buf, 16, &val); if (ret) { rdt_last_cmd_printf("Non-hex character in the mask %s\n", buf);