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spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727731AbeIYWsD (ORCPT ); Tue, 25 Sep 2018 18:48:03 -0400 Received: from aserp2120.oracle.com ([141.146.126.78]:60256 "EHLO aserp2120.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726322AbeIYWsC (ORCPT ); Tue, 25 Sep 2018 18:48:02 -0400 Received: from pps.filterd (aserp2120.oracle.com [127.0.0.1]) by aserp2120.oracle.com (8.16.0.22/8.16.0.22) with SMTP id w8PGcxcN049236; Tue, 25 Sep 2018 16:39:37 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.com; h=subject : to : cc : references : from : message-id : date : mime-version : in-reply-to : content-type : content-transfer-encoding; s=corp-2018-07-02; bh=LsArnAG5z7+QgUDiESkVt/C2FuZW8MZfKKF+5JQX8gc=; b=jxgMxBX3kv0yR8S/b/GjhKuK00STujRoaNycnwDPugIfh1Ci5OC05pFqJXSB0YsJeMFC 4Dc0qSApOLFkB8q56xEkHPM0+0fr64RUv6SB4pGRuOogTU6cIzM6oG5cD/eqFlBG/34c kLUafOi++dgNLHfAVgc8/xlMi5MCAxTHJnKV0DkH2aqzLQDrbAxeWBSa/crFDWcvE10w 0vFGpHoQoi3VO1O33a68tHKNO+/6SBhbelgW4GWTaoT8z5RSjBJfSoCguFEQdbclJ4DK Adl2Skp2aQtmkCd1Ihx6z09uUN3fIGOd6GdQxOCCXX9g83qxfYSRzLE49itzPtsST8TY dw== Received: from aserv0021.oracle.com (aserv0021.oracle.com [141.146.126.233]) by aserp2120.oracle.com with ESMTP id 2mndppddc5-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Tue, 25 Sep 2018 16:39:37 +0000 Received: from userv0121.oracle.com (userv0121.oracle.com [156.151.31.72]) by aserv0021.oracle.com (8.14.4/8.14.4) with ESMTP id w8PGda9c029855 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Tue, 25 Sep 2018 16:39:37 GMT Received: from abhmp0008.oracle.com (abhmp0008.oracle.com [141.146.116.14]) by userv0121.oracle.com (8.14.4/8.13.8) with ESMTP id w8PGdZAY019906; Tue, 25 Sep 2018 16:39:36 GMT Received: from [192.168.1.164] (/50.38.38.67) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Tue, 25 Sep 2018 09:39:35 -0700 Subject: Re: [PATCH V2] mm/hugetlb: Add mmap() encodings for 32MB and 512MB page sizes To: Anshuman Khandual , linux-kernel@vger.kernel.org, linux-mm@kvack.org Cc: mhocko@kernel.org, punit.agrawal@arm.com, will.deacon@arm.com, akpm@linux-foundation.org References: <1537797985-2406-1-git-send-email-anshuman.khandual@arm.com> <1537841300-6979-1-git-send-email-anshuman.khandual@arm.com> From: Mike Kravetz Message-ID: Date: Tue, 25 Sep 2018 09:39:34 -0700 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.0 MIME-Version: 1.0 In-Reply-To: <1537841300-6979-1-git-send-email-anshuman.khandual@arm.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit X-Proofpoint-Virus-Version: vendor=nai engine=5900 definitions=9026 signatures=668707 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 suspectscore=0 malwarescore=0 phishscore=0 bulkscore=0 spamscore=0 mlxscore=0 mlxlogscore=999 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1807170000 definitions=main-1809250165 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 9/24/18 7:08 PM, Anshuman Khandual wrote: > ARM64 architecture also supports 32MB and 512MB HugeTLB page sizes. > This just adds mmap() system call argument encoding for them. > > Signed-off-by: Anshuman Khandual > --- > > Changes in V2: > - Updated SHM and MFD definitions per Mike Thanks Anshuman, Acked-by: Mike Kravetz -- Mike Kravetz > > include/uapi/asm-generic/hugetlb_encode.h | 2 ++ > include/uapi/linux/memfd.h | 2 ++ > include/uapi/linux/mman.h | 2 ++ > include/uapi/linux/shm.h | 2 ++ > 4 files changed, 8 insertions(+) > > diff --git a/include/uapi/asm-generic/hugetlb_encode.h b/include/uapi/asm-generic/hugetlb_encode.h > index e4732d3..b0f8e87 100644 > --- a/include/uapi/asm-generic/hugetlb_encode.h > +++ b/include/uapi/asm-generic/hugetlb_encode.h > @@ -26,7 +26,9 @@ > #define HUGETLB_FLAG_ENCODE_2MB (21 << HUGETLB_FLAG_ENCODE_SHIFT) > #define HUGETLB_FLAG_ENCODE_8MB (23 << HUGETLB_FLAG_ENCODE_SHIFT) > #define HUGETLB_FLAG_ENCODE_16MB (24 << HUGETLB_FLAG_ENCODE_SHIFT) > +#define HUGETLB_FLAG_ENCODE_32MB (25 << HUGETLB_FLAG_ENCODE_SHIFT) > #define HUGETLB_FLAG_ENCODE_256MB (28 << HUGETLB_FLAG_ENCODE_SHIFT) > +#define HUGETLB_FLAG_ENCODE_512MB (29 << HUGETLB_FLAG_ENCODE_SHIFT) > #define HUGETLB_FLAG_ENCODE_1GB (30 << HUGETLB_FLAG_ENCODE_SHIFT) > #define HUGETLB_FLAG_ENCODE_2GB (31 << HUGETLB_FLAG_ENCODE_SHIFT) > #define HUGETLB_FLAG_ENCODE_16GB (34 << HUGETLB_FLAG_ENCODE_SHIFT) > diff --git a/include/uapi/linux/memfd.h b/include/uapi/linux/memfd.h > index 015a4c0..7a8a267 100644 > --- a/include/uapi/linux/memfd.h > +++ b/include/uapi/linux/memfd.h > @@ -25,7 +25,9 @@ > #define MFD_HUGE_2MB HUGETLB_FLAG_ENCODE_2MB > #define MFD_HUGE_8MB HUGETLB_FLAG_ENCODE_8MB > #define MFD_HUGE_16MB HUGETLB_FLAG_ENCODE_16MB > +#define MFD_HUGE_32MB HUGETLB_FLAG_ENCODE_32MB > #define MFD_HUGE_256MB HUGETLB_FLAG_ENCODE_256MB > +#define MFD_HUGE_512MB HUGETLB_FLAG_ENCODE_512MB > #define MFD_HUGE_1GB HUGETLB_FLAG_ENCODE_1GB > #define MFD_HUGE_2GB HUGETLB_FLAG_ENCODE_2GB > #define MFD_HUGE_16GB HUGETLB_FLAG_ENCODE_16GB > diff --git a/include/uapi/linux/mman.h b/include/uapi/linux/mman.h > index bfd5938..d0f515d 100644 > --- a/include/uapi/linux/mman.h > +++ b/include/uapi/linux/mman.h > @@ -28,7 +28,9 @@ > #define MAP_HUGE_2MB HUGETLB_FLAG_ENCODE_2MB > #define MAP_HUGE_8MB HUGETLB_FLAG_ENCODE_8MB > #define MAP_HUGE_16MB HUGETLB_FLAG_ENCODE_16MB > +#define MAP_HUGE_32MB HUGETLB_FLAG_ENCODE_32MB > #define MAP_HUGE_256MB HUGETLB_FLAG_ENCODE_256MB > +#define MAP_HUGE_512MB HUGETLB_FLAG_ENCODE_512MB > #define MAP_HUGE_1GB HUGETLB_FLAG_ENCODE_1GB > #define MAP_HUGE_2GB HUGETLB_FLAG_ENCODE_2GB > #define MAP_HUGE_16GB HUGETLB_FLAG_ENCODE_16GB > diff --git a/include/uapi/linux/shm.h b/include/uapi/linux/shm.h > index dde1344..6507ad0 100644 > --- a/include/uapi/linux/shm.h > +++ b/include/uapi/linux/shm.h > @@ -65,7 +65,9 @@ struct shmid_ds { > #define SHM_HUGE_2MB HUGETLB_FLAG_ENCODE_2MB > #define SHM_HUGE_8MB HUGETLB_FLAG_ENCODE_8MB > #define SHM_HUGE_16MB HUGETLB_FLAG_ENCODE_16MB > +#define SHM_HUGE_32MB HUGETLB_FLAG_ENCODE_32MB > #define SHM_HUGE_256MB HUGETLB_FLAG_ENCODE_256MB > +#define SHM_HUGE_512MB HUGETLB_FLAG_ENCODE_512MB > #define SHM_HUGE_1GB HUGETLB_FLAG_ENCODE_1GB > #define SHM_HUGE_2GB HUGETLB_FLAG_ENCODE_2GB > #define SHM_HUGE_16GB HUGETLB_FLAG_ENCODE_16GB >