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Tue, 9 Feb 2021 16:19:38 +0000 (GMT) Received: from smtp.tlslab.ibm.com (unknown [9.101.4.1]) by d06av22.portsmouth.uk.ibm.com (Postfix) with SMTP; Tue, 9 Feb 2021 16:19:38 +0000 (GMT) Received: from yukon.ibmuc.com (unknown [9.171.88.237]) by smtp.tlslab.ibm.com (Postfix) with ESMTP id 034062202B9; Tue, 9 Feb 2021 17:19:37 +0100 (CET) From: =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= To: linuxppc-dev@lists.ozlabs.org Subject: [PATCH 1/5] powerpc/xive: Use cpu_to_node() instead of ibm, chip-id property Date: Tue, 9 Feb 2021 17:19:32 +0100 Message-Id: <20210209161936.377760-2-clg@kaod.org> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20210209161936.377760-1-clg@kaod.org> References: <20210209161936.377760-1-clg@kaod.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable X-TM-AS-GCONF: 00 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.369, 18.0.737 definitions=2021-02-09_03:2021-02-09, 2021-02-09 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 mlxscore=0 clxscore=1034 bulkscore=0 impostorscore=0 lowpriorityscore=0 mlxlogscore=983 priorityscore=1501 malwarescore=0 suspectscore=0 phishscore=0 spamscore=0 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2009150000 definitions=main-2102090080 X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" The 'chip_id' field of the XIVE CPU structure is used to choose a target for a source located on the same chip when possible. This field is assigned on the PowerNV platform using the "ibm,chip-id" property on pSeries under KVM when NUMA nodes are defined but it is undefined under PowerVM. The XIVE source structure has a similar field 'src_chip' which is only assigned on the PowerNV platform. cpu_to_node() returns a compatible value on all platforms, 0 being the default node. It will also give us the opportunity to set the affinity of a source on pSeries when we can localize them. Signed-off-by: C=C3=A9dric Le Goater --- arch/powerpc/sysdev/xive/common.c | 7 +------ 1 file changed, 1 insertion(+), 6 deletions(-) diff --git a/arch/powerpc/sysdev/xive/common.c b/arch/powerpc/sysdev/xive= /common.c index 7e08be5e5e4a..776871274b69 100644 --- a/arch/powerpc/sysdev/xive/common.c +++ b/arch/powerpc/sysdev/xive/common.c @@ -1336,16 +1336,11 @@ static int xive_prepare_cpu(unsigned int cpu) =20 xc =3D per_cpu(xive_cpu, cpu); if (!xc) { - struct device_node *np; - xc =3D kzalloc_node(sizeof(struct xive_cpu), GFP_KERNEL, cpu_to_node(cpu)); if (!xc) return -ENOMEM; - np =3D of_get_cpu_node(cpu, NULL); - if (np) - xc->chip_id =3D of_get_ibm_chip_id(np); - of_node_put(np); + xc->chip_id =3D cpu_to_node(cpu); xc->hw_ipi =3D XIVE_BAD_IRQ; =20 per_cpu(xive_cpu, cpu) =3D xc; --=20 2.26.2