From: Gregory CLEMENT <gregory.clement@bootlin.com>
To: Miquel Raynal <miquel.raynal@bootlin.com>,
Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Cc: Mark Rutland <mark.rutland@arm.com>, Andrew Lunn <andrew@lunn.ch>,
Jason Cooper <jason@lakedaemon.net>,
devicetree@vger.kernel.org,
Antoine Tenart <antoine.tenart@bootlin.com>,
Catalin Marinas <catalin.marinas@arm.com>,
Will Deacon <will.deacon@arm.com>,
Maxime Chevallier <maxime.chevallier@bootlin.com>,
Nadav Haklai <nadavh@marvell.com>,
Rob Herring <robh+dt@kernel.org>, Victor Gu <xigu@marvell.com>,
linux-arm-kernel@lists.infradead.org,
Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Subject: Re: [PATCH v2] arm64: dts: marvell: armada-37xx: reserve memory for ATF
Date: Fri, 29 Jun 2018 16:39:39 +0200 [thread overview]
Message-ID: <87y3ex4pxw.fsf@bootlin.com> (raw)
In-Reply-To: <20180629134407.112819d2@windsurf> (Thomas Petazzoni's message of "Fri, 29 Jun 2018 13:44:07 +0200")
Hi Miquel, Thomas,
On ven., juin 29 2018, Thomas Petazzoni <thomas.petazzoni@bootlin.com> wrote:
> Hello,
>
> On Tue, 26 Jun 2018 10:17:01 +0200, Miquel Raynal wrote:
>> From: Victor Gu <xigu@marvell.com>
>>
>> The PSCI area should be reserved in Linux for PSCI operations such as
>> suspend/resume.
>>
>> Reserve 2MiB of memory which matches the area used by ATF (BL1, BL2,
>> BL3x, see [1] in ATF source code). This covers all PSCI code and data
>> area and is 2MiB aligned, which is required by Linux for huge pages
>> handling.
>>
>> Please note that this is a default setup allowing to perform PSCI
>> operations with legacy bootloaders. Recent bootloaders should update the
>> region size/position accordingly.
>>
>> [1] plat/marvell/a3700/common/include/platform_def.h
>>
>> Signed-off-by: Victor Gu <xigu@marvell.com>
>> [miquel.raynal@bootlin.com: reword of commit message, comment in the DTSI]
>> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
>
> Acked-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Applied on mvebu/dt64
Thanks,
Gregory
>
> Best regards,
>
> Thomas
> --
> Thomas Petazzoni, CTO, Bootlin (formerly Free Electrons)
> Embedded Linux and Kernel engineering
> https://bootlin.com
--
Gregory Clement, Bootlin (formerly Free Electrons)
Embedded Linux and Kernel engineering
http://bootlin.com
prev parent reply other threads:[~2018-06-29 14:39 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-06-26 8:17 [PATCH v2] arm64: dts: marvell: armada-37xx: reserve memory for ATF Miquel Raynal
2018-06-29 11:44 ` Thomas Petazzoni
2018-06-29 14:39 ` Gregory CLEMENT [this message]
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