From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from e28smtp09.in.ibm.com (e28smtp09.in.ibm.com [122.248.162.9]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client CN "e28smtp09.in.ibm.com", Issuer "GeoTrust SSL CA" (not verified)) by ozlabs.org (Postfix) with ESMTPS id 11BF42C05A4 for ; Fri, 15 Mar 2013 20:45:33 +1100 (EST) Received: from /spool/local by e28smtp09.in.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Fri, 15 Mar 2013 15:09:09 +0530 Received: from d28relay05.in.ibm.com (d28relay05.in.ibm.com [9.184.220.62]) by d28dlp02.in.ibm.com (Postfix) with ESMTP id DB59B39400E9 for ; Fri, 15 Mar 2013 15:10:12 +0530 (IST) Received: from d28av02.in.ibm.com (d28av02.in.ibm.com [9.184.220.64]) by d28relay05.in.ibm.com (8.13.8/8.13.8/NCO v10.0) with ESMTP id r2F9e9ov786826 for ; Fri, 15 Mar 2013 15:10:09 +0530 Received: from d28av02.in.ibm.com (loopback [127.0.0.1]) by d28av02.in.ibm.com (8.14.4/8.13.1/NCO v10.0 AVout) with ESMTP id r2F9eBHv009545 for ; Fri, 15 Mar 2013 20:40:11 +1100 From: "Aneesh Kumar K.V" To: benh@kernel.crashing.org, paulus@samba.org Subject: [PATCH -V3 04/25] powerpc: Reduce the PTE_INDEX_SIZE Date: Fri, 15 Mar 2013 15:09:46 +0530 Message-Id: <1363340407-22619-5-git-send-email-aneesh.kumar@linux.vnet.ibm.com> In-Reply-To: <1363340407-22619-1-git-send-email-aneesh.kumar@linux.vnet.ibm.com> References: <1363340407-22619-1-git-send-email-aneesh.kumar@linux.vnet.ibm.com> Cc: linuxppc-dev@lists.ozlabs.org, "Aneesh Kumar K.V" List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , From: "Aneesh Kumar K.V" This make one PMD cover 16MB range. That helps in easier implementation of THP on power. THP core code make use of one pmd entry to track the hugepage and the range mapped by a single pmd entry should be equal to the hugepage size supported by the hardware. Acked-by: Paul Mackerras Signed-off-by: Aneesh Kumar K.V --- arch/powerpc/include/asm/pgtable-ppc64-64k.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/powerpc/include/asm/pgtable-ppc64-64k.h b/arch/powerpc/include/asm/pgtable-ppc64-64k.h index be4e287..3c529b4 100644 --- a/arch/powerpc/include/asm/pgtable-ppc64-64k.h +++ b/arch/powerpc/include/asm/pgtable-ppc64-64k.h @@ -4,10 +4,10 @@ #include -#define PTE_INDEX_SIZE 12 +#define PTE_INDEX_SIZE 8 #define PMD_INDEX_SIZE 12 #define PUD_INDEX_SIZE 0 -#define PGD_INDEX_SIZE 6 +#define PGD_INDEX_SIZE 10 #ifndef __ASSEMBLY__ #define PTE_TABLE_SIZE (sizeof(real_pte_t) << PTE_INDEX_SIZE) -- 1.7.10