From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753842AbdKHC0S (ORCPT ); Tue, 7 Nov 2017 21:26:18 -0500 Received: from mx0b-001b2d01.pphosted.com ([148.163.158.5]:60714 "EHLO mx0a-001b2d01.pphosted.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1753224AbdKHCYW (ORCPT ); Tue, 7 Nov 2017 21:24:22 -0500 From: Sukadev Bhattiprolu To: Michael Ellerman Cc: Benjamin Herrenschmidt , mikey@neuling.org, hbabu@us.ibm.com, nicholas.piggin@gmail.com, linuxppc-dev@ozlabs.org, Subject: [PATCH v3 12/18] powerpc: have copy depend on CONFIG_BOOK3S_64 Date: Tue, 7 Nov 2017 18:23:52 -0800 X-Mailer: git-send-email 2.7.4 In-Reply-To: <1510107838-15181-1-git-send-email-sukadev@linux.vnet.ibm.com> References: <1510107838-15181-1-git-send-email-sukadev@linux.vnet.ibm.com> X-TM-AS-GCONF: 00 x-cbid: 17110802-0028-0000-0000-0000089DBC7E X-IBM-SpamModules-Scores: X-IBM-SpamModules-Versions: BY=3.00008029; HX=3.00000241; KW=3.00000007; PH=3.00000004; SC=3.00000239; SDB=6.00942691; UDB=6.00475553; IPR=6.00722980; BA=6.00005677; NDR=6.00000001; ZLA=6.00000005; ZF=6.00000009; ZB=6.00000000; ZP=6.00000000; ZH=6.00000000; ZU=6.00000002; MB=3.00017903; XFM=3.00000015; UTC=2017-11-08 02:24:20 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 17110802-0029-0000-0000-0000383F0987 Message-Id: <1510107838-15181-13-git-send-email-sukadev@linux.vnet.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:,, definitions=2017-11-07_08:,, signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 malwarescore=0 suspectscore=0 phishscore=0 bulkscore=0 spamscore=0 clxscore=1015 lowpriorityscore=0 impostorscore=0 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1707230000 definitions=main-1711080027 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Have the COPY/PASTE instructions depend on CONFIG_BOOK3S_64 rather than CONFIG_PPC_STD_MMU_64. Signed-off-by: Sukadev Bhattiprolu --- arch/powerpc/kernel/process.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c index a0c74bb..37ed60b 100644 --- a/arch/powerpc/kernel/process.c +++ b/arch/powerpc/kernel/process.c @@ -1215,10 +1215,14 @@ struct task_struct *__switch_to(struct task_struct *prev, batch = this_cpu_ptr(&ppc64_tlb_batch); batch->active = 1; } +#endif /* CONFIG_PPC_STD_MMU_64 */ if (current_thread_info()->task->thread.regs) { +#ifdef CONFIG_PPC_STD_MMU_64 restore_math(current_thread_info()->task->thread.regs); +#endif /* CONFIG_PPC_STD_MMU_64 */ +#ifdef CONFIG_PPC_BOOK3S_64 /* * The copy-paste buffer can only store into foreign real * addresses, so unprivileged processes can not see the @@ -1237,8 +1241,8 @@ struct task_struct *__switch_to(struct task_struct *prev, asm volatile(PPC_COPY(%0, %1) : : "r"(dummy_copy_buffer), "r"(0)); } +#endif /* CONFIG_PPC_BOOK3S_64 */ } -#endif /* CONFIG_PPC_STD_MMU_64 */ return last; } -- 2.7.4