From patchwork Tue Jan 3 20:43:36 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Reza Arbab X-Patchwork-Id: 710630 Return-Path: X-Original-To: patchwork-incoming@ozlabs.org Delivered-To: patchwork-incoming@ozlabs.org Received: from lists.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3]) (using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 3ttQt228wmz9snk for ; Wed, 4 Jan 2017 07:44:42 +1100 (AEDT) Received: from lists.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3]) by lists.ozlabs.org (Postfix) with ESMTP id 3ttQt21PtFzDqP7 for ; Wed, 4 Jan 2017 07:44:42 +1100 (AEDT) X-Original-To: linuxppc-dev@lists.ozlabs.org Delivered-To: linuxppc-dev@lists.ozlabs.org Received: from mx0a-001b2d01.pphosted.com (mx0a-001b2d01.pphosted.com [148.163.156.1]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 3ttQrw3cj8zDqFq for ; Wed, 4 Jan 2017 07:43:44 +1100 (AEDT) Received: from pps.filterd (m0098410.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.0.17/8.16.0.17) with SMTP id v03KcdLm118068 for ; Tue, 3 Jan 2017 15:43:42 -0500 Received: from e34.co.us.ibm.com (e34.co.us.ibm.com [32.97.110.152]) by mx0a-001b2d01.pphosted.com with ESMTP id 27rdf7qr8n-1 (version=TLSv1.2 cipher=AES256-SHA bits=256 verify=NOT) for ; Tue, 03 Jan 2017 15:43:42 -0500 Received: from localhost by e34.co.us.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! 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Violators will be prosecuted; Tue, 3 Jan 2017 13:43:39 -0700 Received: from b03cxnp08028.gho.boulder.ibm.com (b03cxnp08028.gho.boulder.ibm.com [9.17.130.20]) by d03dlp03.boulder.ibm.com (Postfix) with ESMTP id 1A7FB19D8040; Tue, 3 Jan 2017 13:42:57 -0700 (MST) Received: from b03ledav002.gho.boulder.ibm.com (b03ledav002.gho.boulder.ibm.com [9.17.130.233]) by b03cxnp08028.gho.boulder.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id v03Khd957733532; Tue, 3 Jan 2017 13:43:39 -0700 Received: from b03ledav002.gho.boulder.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 115B613604D; Tue, 3 Jan 2017 13:43:39 -0700 (MST) Received: from arbab-laptop.localdomain (unknown [9.24.29.85]) by b03ledav002.gho.boulder.ibm.com (Postfix) with ESMTP id EDE3913603A; Tue, 3 Jan 2017 13:43:38 -0700 (MST) Received: by arbab-laptop.localdomain (Postfix, from userid 152845) id 675444603C3; Tue, 3 Jan 2017 14:43:38 -0600 (CST) From: Reza Arbab To: Michael Ellerman , Benjamin Herrenschmidt , Paul Mackerras Subject: [PATCH v4 2/4] powerpc/mm: add radix__create_section_mapping() Date: Tue, 3 Jan 2017 14:43:36 -0600 X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1483476218-17271-1-git-send-email-arbab@linux.vnet.ibm.com> References: <1483476218-17271-1-git-send-email-arbab@linux.vnet.ibm.com> X-TM-AS-GCONF: 00 X-Content-Scanned: Fidelis XPS MAILER x-cbid: 17010320-0016-0000-0000-0000058D2559 X-IBM-SpamModules-Scores: X-IBM-SpamModules-Versions: BY=3.00006367; HX=3.00000240; KW=3.00000007; PH=3.00000004; SC=3.00000199; SDB=6.00803074; UDB=6.00390645; IPR=6.00580925; BA=6.00005028; NDR=6.00000001; ZLA=6.00000005; ZF=6.00000009; ZB=6.00000000; ZP=6.00000000; ZH=6.00000000; ZU=6.00000002; MB=3.00013813; XFM=3.00000011; UTC=2017-01-03 20:43:41 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 17010320-0017-0000-0000-000035F64249 Message-Id: <1483476218-17271-3-git-send-email-arbab@linux.vnet.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:, , definitions=2017-01-03_18:, , signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 suspectscore=0 malwarescore=0 phishscore=0 adultscore=0 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1612050000 definitions=main-1701030313 X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Alistair Popple , linuxppc-dev@lists.ozlabs.org, "Aneesh Kumar K.V" Errors-To: linuxppc-dev-bounces+patchwork-incoming=ozlabs.org@lists.ozlabs.org Sender: "Linuxppc-dev" Wire up memory hotplug page mapping for radix. Share the mapping function already used by radix_init_pgtable(). Signed-off-by: Reza Arbab --- arch/powerpc/include/asm/book3s/64/radix.h | 4 ++++ arch/powerpc/mm/pgtable-book3s64.c | 2 +- arch/powerpc/mm/pgtable-radix.c | 7 +++++++ 3 files changed, 12 insertions(+), 1 deletion(-) diff --git a/arch/powerpc/include/asm/book3s/64/radix.h b/arch/powerpc/include/asm/book3s/64/radix.h index b4d1302..43c2571 100644 --- a/arch/powerpc/include/asm/book3s/64/radix.h +++ b/arch/powerpc/include/asm/book3s/64/radix.h @@ -291,5 +291,9 @@ static inline unsigned long radix__get_tree_size(void) } return rts_field; } + +#ifdef CONFIG_MEMORY_HOTPLUG +int radix__create_section_mapping(unsigned long start, unsigned long end); +#endif /* CONFIG_MEMORY_HOTPLUG */ #endif /* __ASSEMBLY__ */ #endif diff --git a/arch/powerpc/mm/pgtable-book3s64.c b/arch/powerpc/mm/pgtable-book3s64.c index 653ff6c..2b13f6b 100644 --- a/arch/powerpc/mm/pgtable-book3s64.c +++ b/arch/powerpc/mm/pgtable-book3s64.c @@ -131,7 +131,7 @@ void mmu_cleanup_all(void) int create_section_mapping(unsigned long start, unsigned long end) { if (radix_enabled()) - return -ENODEV; + return radix__create_section_mapping(start, end); return hash__create_section_mapping(start, end); } diff --git a/arch/powerpc/mm/pgtable-radix.c b/arch/powerpc/mm/pgtable-radix.c index 5cee6d1..3588895 100644 --- a/arch/powerpc/mm/pgtable-radix.c +++ b/arch/powerpc/mm/pgtable-radix.c @@ -456,6 +456,13 @@ void radix__setup_initial_memory_limit(phys_addr_t first_memblock_base, memblock_set_current_limit(first_memblock_base + first_memblock_size); } +#ifdef CONFIG_MEMORY_HOTPLUG +int __ref radix__create_section_mapping(unsigned long start, unsigned long end) +{ + return create_physical_mapping(start, end); +} +#endif /* CONFIG_MEMORY_HOTPLUG */ + #ifdef CONFIG_SPARSEMEM_VMEMMAP int __meminit radix__vmemmap_create_mapping(unsigned long start, unsigned long page_size,