linux-kernel - Re: [patch v11 05/23] ACPI: fix acpi_os

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Message-ID: <20150325165004.GD14585@localhost>
Date:	Wed, 25 Mar 2015 16:50:04 +0000
From:	Catalin Marinas <catalin.marinas@....com>
To:	Hanjun Guo <hanjun.guo@...aro.org>
Cc:	"Rafael J. Wysocki" <rjw@...ysocki.net>,
	Will Deacon <will.deacon@....com>,
	Olof Johansson <olof@...om.net>,
	Grant Likely <grant.likely@...aro.org>,
	Mark Rutland <mark.rutland@....com>,
	Ashwin Chaugule <ashwinc@...eaurora.org>,
	Lorenzo Pieralisi <Lorenzo.Pieralisi@....com>,
	Robert Richter <rric@...nel.org>,
	Arnd Bergmann <arnd@...db.de>,
	Graeme Gregory <graeme.gregory@...aro.org>,
	linaro-acpi@...ts.linaro.org, Marc Zyngier <marc.zyngier@....com>,
	Jon Masters <jcm@...hat.com>,
	Timur Tabi <timur@...eaurora.org>,
	Mark Salter <msalter@...hat.com>, linux-kernel@...r.kernel.org,
	linux-acpi@...r.kernel.org, Mark Brown <broonie@...nel.org>,
	Suravee Suthikulpanit <suravee.suthikulpanit@....com>,
	Sudeep Holla <Sudeep.Holla@....com>,
	linux-arm-kernel@...ts.infradead.org
Subject: Re: [patch v11 05/23] ACPI: fix acpi_os_ioremap for arm64

On Tue, Mar 24, 2015 at 10:02:38PM +0800, Hanjun Guo wrote:
> From: Mark Salter <msalter@...hat.com>
> 
> The acpi_os_ioremap() function may be used to map normal RAM or IO
> regions. The current implementation simply uses ioremap_cache(). This
> will work for some architectures, but arm64 ioremap_cache() cannot be
> used to map IO regions which don't support caching. So for arm64, use
> ioremap() for non-RAM regions.
> 
> CC: Rafael J Wysocki <rjw@...ysocki.net>
> CC: Catalin Marinas <catalin.marinas@....com>
> Tested-by: Robert Richter <rrichter@...ium.com>
> Tested-by: Timur Tabi <timur@...eaurora.org>
> Acked-by: Robert Richter <rrichter@...ium.com>
> Acked-by: Rafael J. Wysocki <rafael.j.wysocki@...el.com>
> Reviewed-by: Grant Likely <grant.likely@...aro.org>
> Signed-off-by: Mark Salter <msalter@...hat.com>
> Signed-off-by: Hanjun Guo <hanjun.guo@...aro.org>

Acked-by: Catalin Marinas <catalin.marinas@....com>

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