From nobody Wed Nov 12 11:51:41 2025 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Authentication-Results: mx.zohomail.com; spf=pass (zoho.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org ARC-Seal: i=1; a=rsa-sha256; t=1570438013; cv=none; d=zoho.com; s=zohoarc; b=Mu57RKQ+SZu11aK4h5hB8HlFO05rbpwuuDi68muMCD9ZOQ9NHrjSvVl19pHZWONUHIFS/5zKm0z8XA2TKICcnvDwDWKePE9iHVHanVGuNkO1tE3KCYmvp8z8caGj/Bm7QQPR1h9MARLi+LkBeEInSL1ec7MWzV0j1ITqRhdzjWg= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zoho.com; s=zohoarc; t=1570438013; h=Content-Type:Content-Transfer-Encoding:Cc:Date:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:To:ARC-Authentication-Results; bh=+jvfC45eeNhwYklF9pukZTp2cUbefyWmg5PiF86nfUc=; b=im6xGrjOIvp6U8dvNUALSFYl4mZpRj4B31HQjlI2iRPvYkr87qpvx7je2nURpAB1xu/tPy5r1NPMq6oAh+wjT8AQdM+SofJihPWZ0rzqy7rAqQK0wjYGjDCGug5jvBMf+Pbjfsl6kxU9v5nCLrCwyak6C5Cxxg8mgKNyJ+FwoCc= ARC-Authentication-Results: i=1; mx.zoho.com; spf=pass (zoho.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1570438013793665.3198046678932; Mon, 7 Oct 2019 01:46:53 -0700 (PDT) Received: from localhost ([::1]:41732 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1iHOfM-0000I7-G7 for importer@patchew.org; Mon, 07 Oct 2019 04:46:52 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:49081) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1iHOad-0003iX-9P for qemu-devel@nongnu.org; Mon, 07 Oct 2019 04:42:02 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1iHOaW-00042k-Cy for qemu-devel@nongnu.org; Mon, 07 Oct 2019 04:41:59 -0400 Received: from mx0a-001b2d01.pphosted.com ([148.163.156.1]:32648) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1iHOaF-0003pl-Gp for qemu-devel@nongnu.org; Mon, 07 Oct 2019 04:41:52 -0400 Received: from pps.filterd (m0098399.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.0.27/8.16.0.27) with SMTP id x978d5D1102085 for ; Mon, 7 Oct 2019 04:41:24 -0400 Received: from e06smtp05.uk.ibm.com (e06smtp05.uk.ibm.com [195.75.94.101]) by mx0a-001b2d01.pphosted.com with ESMTP id 2vg0y6j6xr-1 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=NOT) for ; Mon, 07 Oct 2019 04:41:24 -0400 Received: from localhost by e06smtp05.uk.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! 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Violators will be prosecuted; (version=TLSv1/SSLv3 cipher=AES256-GCM-SHA384 bits=256/256) Mon, 7 Oct 2019 09:41:16 +0100 Received: from d06av21.portsmouth.uk.ibm.com (d06av21.portsmouth.uk.ibm.com [9.149.105.232]) by b06cxnps4075.portsmouth.uk.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id x978fFiK53346436 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Mon, 7 Oct 2019 08:41:15 GMT Received: from d06av21.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 5BBD05204F; Mon, 7 Oct 2019 08:41:15 +0000 (GMT) Received: from smtp.tls.ibm.com (unknown [9.101.4.1]) by d06av21.portsmouth.uk.ibm.com (Postfix) with ESMTP id 466775204E; Mon, 7 Oct 2019 08:41:15 +0000 (GMT) Received: from yukon.kaod.org.com (sig-9-145-169-184.de.ibm.com [9.145.169.184]) by smtp.tls.ibm.com (Postfix) with ESMTP id 9377B22006B; Mon, 7 Oct 2019 10:41:14 +0200 (CEST) From: =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= To: David Gibson Subject: [PATCH 8/9] ppc/xive: Introduce OS CAM line helpers Date: Mon, 7 Oct 2019 10:41:01 +0200 X-Mailer: git-send-email 2.21.0 In-Reply-To: <20191007084102.29776-1-clg@kaod.org> References: <20191007084102.29776-1-clg@kaod.org> MIME-Version: 1.0 X-TM-AS-GCONF: 00 x-cbid: 19100708-0020-0000-0000-00000375BD48 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 19100708-0021-0000-0000-000021CBD377 Message-Id: <20191007084102.29776-9-clg@kaod.org> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:, , definitions=2019-10-07_01:, , signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 malwarescore=0 suspectscore=2 phishscore=0 bulkscore=0 spamscore=0 clxscore=1034 lowpriorityscore=0 mlxscore=0 impostorscore=0 mlxlogscore=666 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1908290000 definitions=main-1910070090 Content-Transfer-Encoding: quoted-printable X-MIME-Autoconverted: from 8bit to quoted-printable by mx0a-001b2d01.pphosted.com id x978d5D1102085 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x [generic] [fuzzy] X-Received-From: 148.163.156.1 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= , qemu-ppc@nongnu.org, qemu-devel@nongnu.org, Greg Kurz Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" Content-Type: text/plain; charset="utf-8" The OS CAM line has a special encoding exploited by the HW. Provide helper routines to hide the details to the TIMA command handlers. This also clarifies the endianness of different variables : 'qw1w2' is big-endian and 'cam' is native. Signed-off-by: C=C3=A9dric Le Goater --- hw/intc/xive.c | 41 ++++++++++++++++++++++++++++++++++++++--- 1 file changed, 38 insertions(+), 3 deletions(-) diff --git a/hw/intc/xive.c b/hw/intc/xive.c index 2bf7b4ad7006..143418c232a2 100644 --- a/hw/intc/xive.c +++ b/hw/intc/xive.c @@ -337,14 +337,49 @@ static void xive_tm_set_os_pending(XiveTCTX *tctx, hw= addr offset, xive_tctx_notify(tctx, TM_QW1_OS); } =20 +static void xive_os_cam_decode(uint32_t cam, uint8_t *nvt_blk, + uint32_t *nvt_idx, bool *vo) +{ + if (nvt_blk) { + *nvt_blk =3D xive_nvt_blk(cam); + } + if (nvt_idx) { + *nvt_idx =3D xive_nvt_idx(cam); + } + if (vo) { + *vo =3D !!(cam & TM_QW1W2_VO); + } +} + +static uint32_t xive_tctx_get_os_cam(XiveTCTX *tctx, uint8_t *nvt_blk, + uint32_t *nvt_idx, bool *vo) +{ + uint32_t qw1w2 =3D xive_tctx_word2(&tctx->regs[TM_QW1_OS]); + uint32_t cam =3D be32_to_cpu(qw1w2); + + xive_os_cam_decode(cam, nvt_blk, nvt_idx, vo); + return qw1w2; +} + +static void xive_tctx_set_os_cam(XiveTCTX *tctx, uint32_t qw1w2) +{ + memcpy(&tctx->regs[TM_QW1_OS + TM_WORD2], &qw1w2, 4); +} + static uint64_t xive_tm_pull_os_ctx(XiveTCTX *tctx, hwaddr offset, unsigned size) { - uint32_t qw1w2_prev =3D xive_tctx_word2(&tctx->regs[TM_QW1_OS]); uint32_t qw1w2; + uint32_t qw1w2_new; + uint8_t nvt_blk; + uint32_t nvt_idx; + bool vo; =20 - qw1w2 =3D xive_set_field32(TM_QW1W2_VO, qw1w2_prev, 0); - memcpy(&tctx->regs[TM_QW1_OS + TM_WORD2], &qw1w2, 4); + qw1w2 =3D xive_tctx_get_os_cam(tctx, &nvt_blk, &nvt_idx, &vo); + + /* Invalidate CAM line */ + qw1w2_new =3D xive_set_field32(TM_QW1W2_VO, qw1w2, 0); + xive_tctx_set_os_cam(tctx, qw1w2_new); return qw1w2; } =20 --=20 2.21.0