From: Jason Cooper <jason@lakedaemon.net>
To: Gregory CLEMENT <gregory.clement@free-electrons.com>
Cc: Andrew Lunn <andrew@lunn.ch>, Lior Amsalem <alior@marvell.com>,
Ike Pan <ike.pan@canonical.com>,
Grant Likely <grant.likely@secretlab.ca>,
David Marlin <dmarlin@redhat.com>,
Yehuda Yitschak <yehuday@marvell.com>,
Tawfik Bayouk <tawfik@marvell.com>,
Dan Frazier <dann.frazier@canonical.com>,
Eran Ben-Avi <benavi@marvell.com>,
Ezequiel Garcia <ezequiel.garcia@free-electrons.com>,
Leif Lindholm <leif.lindholm@arm.com>,
Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>,
Arnd Bergmann <arnd@arndb.de>, Jon Masters <jcm@redhat.com>,
devicetree-discuss@lists.ozlabs.org,
Rob Herring <rob.herring@calxeda.com>,
linux-arm-kernel@lists.infradead.org,
Thomas Petazzoni <thomas.petazzoni@free-electrons.com>,
Chris Van Hoof <vanhoof@canonical.com>,
Nicolas Pitre <nico@fluxnic.net>,
linux-kernel@vger.kernel.org, Maen Suleiman <maen@marvell.com>,
Nadav Haklai <nadavh@marvell.com>,
Shadi Ammouri <shadi@marvell.com>,
Olof Johansson <olof@lixom.net>
Subject: Re: [PATCH v3 2/9] ARM: mvebu: Limit the DMA zone when LPAE is selected
Date: Thu, 11 Apr 2013 14:07:36 -0400 [thread overview]
Message-ID: <20130411180736.GM28693@titan.lakedaemon.net> (raw)
In-Reply-To: <1365461538-30702-3-git-send-email-gregory.clement@free-electrons.com>
On Tue, Apr 09, 2013 at 12:52:10AM +0200, Gregory CLEMENT wrote:
> When LPAE is activated on Armada XP, all registers and IOs are still
> 32bit, the 40bit extension is on the CPU to DRAM path (windows) only.
> That means that all the DMA transfer are restricted to the low 32 bits
> address space. This is limitation is achieved by selecting ZONE_DMA.
>
> Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
> ---
> arch/arm/mach-mvebu/Kconfig | 1 +
> 1 file changed, 1 insertion(+)
Applied to mvebu/soc
thx,
Jason.
next prev parent reply other threads:[~2013-04-11 18:07 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-04-08 22:52 [PATCH v3 0/9] ARM: mvebu: Enable LPAE support for Armada XP SoCs Gregory CLEMENT
2013-04-08 22:52 ` [PATCH v3 1/9] ARM: dts: mvebu: fix cpus section indentation Gregory CLEMENT
2013-04-08 22:52 ` [PATCH v3 2/9] ARM: mvebu: Limit the DMA zone when LPAE is selected Gregory CLEMENT
2013-04-11 18:07 ` Jason Cooper [this message]
2013-04-08 22:52 ` [PATCH v3 3/9] ARM: mvebu: Align the internal registers virtual base to support LPAE Gregory CLEMENT
2013-04-11 18:08 ` Jason Cooper
2013-04-08 22:52 ` [PATCH v3 4/9] ARM: mvebu: Enable pj4b on LPAE compilations Gregory CLEMENT
2013-04-11 18:08 ` Jason Cooper
2013-04-11 20:41 ` Gregory CLEMENT
2013-04-11 23:29 ` Jason Cooper
2013-04-08 22:52 ` [PATCH v3 5/9] ARM: dts: Add a 64 bits version of the skeleton device tree Gregory CLEMENT
2013-04-11 18:12 ` Jason Cooper
2013-04-11 20:48 ` Gregory CLEMENT
2013-04-11 23:35 ` Jason Cooper
2013-04-08 22:52 ` [PATCH v3 6/9] ARM: dts: mvebu: move all peripherals inside soc Gregory CLEMENT
2013-04-08 22:52 ` [PATCH v3 7/9] ARM: dts: mvebu: Convert all the mvebu files to use the range property Gregory CLEMENT
2013-04-08 22:52 ` [PATCH v3 8/9] ARM: dts: mvebu: introduce internal-regs node Gregory CLEMENT
2013-04-08 22:52 ` [PATCH v3 9/9] ARM: dts: mvebu: Convert mvebu device tree files to 64 bits Gregory CLEMENT
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