From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: 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 3vy2Lc1Zg4zDq7c for ; Tue, 4 Apr 2017 18:33:44 +1000 (AEST) Received: from pps.filterd (m0098409.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.0.20/8.16.0.20) with SMTP id v348ORgZ042435 for ; Tue, 4 Apr 2017 04:33:36 -0400 Received: from e16.ny.us.ibm.com (e16.ny.us.ibm.com [129.33.205.206]) by mx0a-001b2d01.pphosted.com with ESMTP id 29m51m96c3-1 (version=TLSv1.2 cipher=AES256-SHA bits=256 verify=NOT) for ; Tue, 04 Apr 2017 04:33:36 -0400 Received: from localhost by e16.ny.us.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Tue, 4 Apr 2017 04:33:35 -0400 Subject: Re: [PATCH] powerpc/hugetlb: Add ABI defines for MAP_HUGE_16MB and MAP_HUGE_16GB To: Anshuman Khandual , linuxppc-dev@lists.ozlabs.org References: <20170404060310.7588-1-khandual@linux.vnet.ibm.com> From: "Aneesh Kumar K.V" Date: Tue, 4 Apr 2017 14:03:29 +0530 MIME-Version: 1.0 In-Reply-To: <20170404060310.7588-1-khandual@linux.vnet.ibm.com> Content-Type: text/plain; charset=windows-1252; format=flowed Message-Id: <64a8341c-653f-ad59-009e-90cf49dcf551@linux.vnet.ibm.com> List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , On Tuesday 04 April 2017 11:33 AM, Anshuman Khandual wrote: > This just adds user space exported ABI definitions for both 16MB and > 16GB non default huge page sizes to be used with mmap() system call. > > Signed-off-by: Anshuman Khandual > --- > These defined values will be used along with MAP_HUGETLB while calling > mmap() system call if the desired HugeTLB page size is not the default > one. Follows similar definitions present in x86. > > arch/x86/include/uapi/asm/mman.h:#define MAP_HUGE_2MB (21 << MAP_HUGE_SHIFT) > arch/x86/include/uapi/asm/mman.h:#define MAP_HUGE_1GB (30 << MAP_HUGE_SHIFT) > > arch/powerpc/include/uapi/asm/mman.h | 3 +++ > 1 file changed, 3 insertions(+) > > diff --git a/arch/powerpc/include/uapi/asm/mman.h b/arch/powerpc/include/uapi/asm/mman.h > index 03c06ba..e78980b 100644 > --- a/arch/powerpc/include/uapi/asm/mman.h > +++ b/arch/powerpc/include/uapi/asm/mman.h > @@ -29,4 +29,7 @@ > #define MAP_STACK 0x20000 /* give out an address that is best suited for process/thread stacks */ > #define MAP_HUGETLB 0x40000 /* create a huge page mapping */ > > +#define MAP_HUGE_16MB (24 << MAP_HUGE_SHIFT) /* 16MB HugeTLB Page */ > +#define MAP_HUGE_16GB (34 << MAP_HUGE_SHIFT) /* 16GB HugeTLB Page */ > + > #endif /* _UAPI_ASM_POWERPC_MMAN_H */ > I am doing a similar patch as part of 1G and hugetlb migration series. Can you add 2M and 1G #defines also so that i can drop the patch from my series and pick this ? -aneesh