From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Google-Smtp-Source: AIpwx4+yR5O9ICvF7DhmbWTL0LmTgjN1Y685ZeuQcCfSIIF9+LY1WZG1YCV1LenH8yaihC0yvtVM ARC-Seal: i=1; a=rsa-sha256; t=1523931074; cv=none; d=google.com; s=arc-20160816; b=LbAdEksIGh5jlJLEWA10jB6vYesyLxuf1AGfsQpy5uptCJZW1rRlgDMDOHqUI2qnXn Aw3dfWdikeOfvresrQLpS79tLZkBkcig8sVrQzdsO/lYdePwRYOB/KOT2RLXNeHvNGOx 4L3xYffMRl0PltL2TxDMHN48Qhtbz1TpKGm/Cggs0J0nTr6wCKBUCTGK420YGqI2Ji4f ORFBuZgFmspqKMDBHmJsYSCrBA+NQ1kfetiIgMbG/SNNTQtE4J3sGlt2XZ+q/VWJwe8I 9wo7x5H+qq+yUQB+hVSMvwL3FtW3+QHeOVjLlJ0wzuw9oZkITwgStPg7MLiDyY8jjUet ISFg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=message-id:references:in-reply-to:date:subject:cc:to:from :arc-authentication-results; bh=3HddY7CWYb/hka6Ys/c26NQwJkEdnxQz/INXxLQUBFk=; b=w/+u7leHtUke+XshWn0wBQuT+6yMfoUoLMbaWWQKDsnFEClVmUW2IPrxqP6JUwSpU4 e4CBK1P2xFUWM0xq+yn60nqlzpVMjWdS+5M/g+eBFqhiFd3wSA7vttJvAaN75raZY+5R ixSgpxqKue3+UeGMnrEJPbG2SPUITrZ2qNJvyVzqnxi+izprNaE8lIfLsZQ/64HQbhZt AH8Wfx8S6cv30UWV1/mcKlbOsmm7C9vm8PApqVJg4EJvipvcQV9TfEWBNgCDhY7q6L8K tf8WemoUlHDGxQpWrNg518UOPqCUbHWdEVZTc0uX4A+J56NZL/WNloZwP9h7XbuPJpVY 4ueQ== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of alastair@au1.ibm.com designates 148.163.156.1 as permitted sender) smtp.mailfrom=alastair@au1.ibm.com; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=ibm.com Authentication-Results: mx.google.com; spf=pass (google.com: domain of alastair@au1.ibm.com designates 148.163.156.1 as permitted sender) smtp.mailfrom=alastair@au1.ibm.com; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=ibm.com From: "Alastair D'Silva" To: linuxppc-dev@lists.ozlabs.org Cc: linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org, mikey@neuling.org, vaibhav@linux.vnet.ibm.com, aneesh.kumar@linux.vnet.ibm.com, malat@debian.org, felix@linux.vnet.ibm.com, pombredanne@nexb.com, sukadev@linux.vnet.ibm.com, npiggin@gmail.com, gregkh@linuxfoundation.org, arnd@arndb.de, andrew.donnellan@au1.ibm.com, fbarrat@linux.vnet.ibm.com, corbet@lwn.net, "Alastair D'Silva" Subject: [PATCH 2/7] powerpc: Use TIDR CPU feature to control TIDR allocation Date: Tue, 17 Apr 2018 12:09:45 +1000 X-Mailer: git-send-email 2.14.3 In-Reply-To: <20180417020950.21446-1-alastair@au1.ibm.com> References: <20180417020950.21446-1-alastair@au1.ibm.com> X-TM-AS-GCONF: 00 x-cbid: 18041702-0008-0000-0000-000004EC0E0A X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 18041702-0009-0000-0000-00001E800EC2 Message-Id: <20180417020950.21446-3-alastair@au1.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:,, definitions=2018-04-17_01:,, signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 malwarescore=0 suspectscore=1 phishscore=0 bulkscore=0 spamscore=0 clxscore=1015 lowpriorityscore=0 impostorscore=0 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1709140000 definitions=main-1804170020 X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: =?utf-8?q?1597957550458920157?= X-GMAIL-MSGID: =?utf-8?q?1597957550458920157?= X-Mailing-List: linux-kernel@vger.kernel.org List-ID: From: Alastair D'Silva Switch the use of TIDR on it's CPU feature, rather than assuming it is available based on architecture. Signed-off-by: Alastair D'Silva --- arch/powerpc/kernel/process.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c index 1237f13fed51..a3e0a3e06d5a 100644 --- a/arch/powerpc/kernel/process.c +++ b/arch/powerpc/kernel/process.c @@ -1570,7 +1570,7 @@ void clear_thread_tidr(struct task_struct *t) if (!t->thread.tidr) return; - if (!cpu_has_feature(CPU_FTR_ARCH_300)) { + if (!cpu_has_feature(CPU_FTR_P9_TIDR)) { WARN_ON_ONCE(1); return; } @@ -1593,7 +1593,7 @@ int set_thread_tidr(struct task_struct *t) { int rc; - if (!cpu_has_feature(CPU_FTR_ARCH_300)) + if (!cpu_has_feature(CPU_FTR_P9_TIDR)) return -EINVAL; if (t != current) -- 2.14.3