From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757179Ab2HOU0B (ORCPT ); Wed, 15 Aug 2012 16:26:01 -0400 Received: from mail.windriver.com ([147.11.1.11]:36769 "EHLO mail.windriver.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756521Ab2HOTuW (ORCPT ); Wed, 15 Aug 2012 15:50:22 -0400 From: Paul Gortmaker To: , CC: Mark Nelson , Jeff Garzik , Paul Gortmaker Subject: [v2.6.34-stable 059/165] ahci: Enable SB600 64bit DMA on Asus M3A Date: Wed, 15 Aug 2012 15:46:43 -0400 Message-ID: <1345060109-9187-60-git-send-email-paul.gortmaker@windriver.com> X-Mailer: git-send-email 1.7.12.rc2 In-Reply-To: <1345060109-9187-1-git-send-email-paul.gortmaker@windriver.com> References: <1345060109-9187-1-git-send-email-paul.gortmaker@windriver.com> MIME-Version: 1.0 Content-Type: text/plain Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Mark Nelson ------------------- This is a commit scheduled for the next v2.6.34 longterm release. http://git.kernel.org/?p=linux/kernel/git/paulg/longterm-queue-2.6.34.git If you see a problem with using this for longterm, please comment. ------------------- commit 3c4aa91f21f65b7b40bdfb015eacbcb8453ccae2 upstream. Like e65cc194f7628ecaa02462f22f42fb09b50dcd49 this patch enables 64bit DMA for the AHCI SATA controller of a board that has the SB600 southbridge. In this case though we're enabling 64bit DMA for the Asus M3A motherboard. It is a new enough board that all of the BIOS releases since the initial release (0301 from 2007-10-22) work correctly with 64bit DMA enabled. Signed-off-by: Mark Nelson Signed-off-by: Jeff Garzik Signed-off-by: Paul Gortmaker --- drivers/ata/ahci.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c index 9215998..a5b1fd9 100644 --- a/drivers/ata/ahci.c +++ b/drivers/ata/ahci.c @@ -2981,6 +2981,18 @@ static bool ahci_sb600_enable_64bit(struct pci_dev *pdev) DMI_MATCH(DMI_BOARD_NAME, "MS-7376"), }, }, + /* + * All BIOS versions for the Asus M3A support 64bit DMA. + * (all release versions from 0301 to 1206 were tested) + */ + { + .ident = "ASUS M3A", + .matches = { + DMI_MATCH(DMI_BOARD_VENDOR, + "ASUSTeK Computer INC."), + DMI_MATCH(DMI_BOARD_NAME, "M3A"), + }, + }, { } }; const struct dmi_system_id *match; -- 1.7.12.rc2