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Message-Id: <20111102222744.044961713@clark.kroah.org>
Date: Wed, 02 Nov 2011 15:26:31 -0700
From: Greg KH <gregkh@...e.de>
To: linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc: torvalds@...ux-foundation.org, akpm@...ux-foundation.org,
alan@...rguk.ukuu.org.uk, Mark Nelson <mdnelson8@...il.com>,
Jeff Garzik <jgarzik@...ox.com>
Subject: [047/101] ahci: Enable SB600 64bit DMA on Asus M3A
2.6.33-longterm review patch. If anyone has any objections, please let us know.
------------------
From: Mark Nelson <mdnelson8@...il.com>
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 <mdnelson8@...il.com>
Signed-off-by: Jeff Garzik <jgarzik@...ox.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...e.de>
---
drivers/ata/ahci.c | 12 ++++++++++++
1 file changed, 12 insertions(+)
--- a/drivers/ata/ahci.c
+++ b/drivers/ata/ahci.c
@@ -2769,6 +2769,18 @@ static bool ahci_sb600_enable_64bit(stru
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;
--
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