Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751881AbaJSBrX (ORCPT ); Sat, 18 Oct 2014 21:47:23 -0400 Received: from numascale.com ([213.162.240.84]:33164 "EHLO numascale.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751792AbaJSBrN (ORCPT ); Sat, 18 Oct 2014 21:47:13 -0400 From: Daniel J Blueman To: Thomas Gleixner , Ingo Molnar , "H. Peter Anvin" , Bjorn Helgaas Cc: Daniel J Blueman , x86@kernel.org, linux-kernel@vger.kernel.org, linux-pci@vger.kernel.org, Steffen Persvold Subject: [PATCH v2 5/5] Numachip: use 2GB memory block size Date: Sun, 19 Oct 2014 09:45:52 +0800 Message-Id: <1413683152-31302-5-git-send-email-daniel@numascale.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1413683152-31302-1-git-send-email-daniel@numascale.com> References: <1413683152-31302-1-git-send-email-daniel@numascale.com> X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - cpanel21.proisp.no X-AntiAbuse: Original Domain - vger.kernel.org X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12] X-AntiAbuse: Sender Address Domain - numascale.com X-Get-Message-Sender-Via: cpanel21.proisp.no: authenticated_id: daniel@numascale.com X-Source: X-Source-Args: X-Source-Dir: Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Use appropriate memory block size to reduce sysfs entry creation time by 16x. Boot-tested with the four permutations of X86_UV and X86_NUMACHIP. Signed-off-by: Daniel J Blueman --- arch/x86/mm/init_64.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c index 5621c47..22ea6de 100644 --- a/arch/x86/mm/init_64.c +++ b/arch/x86/mm/init_64.c @@ -53,6 +53,7 @@ #include #include #include +#include #include #include "mm_internal.h" @@ -1235,9 +1236,9 @@ static unsigned long probe_memory_block_size(void) /* start from 2g */ unsigned long bz = 1UL<<31; -#ifdef CONFIG_X86_UV - if (is_uv_system()) { - printk(KERN_INFO "UV: memory block size 2GB\n"); +#ifdef CONFIG_X86_64 + if (is_uv_system() || is_numachip_system()) { + pr_info("Memory block size 2GB for large-SMP system\n"); return 2UL * 1024 * 1024 * 1024; } #endif -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/