linux-kernel - Re: [PATCH 1/1] Use cachable mapping for i915 opregion.

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <0d30dc$kr9u7e@orsmga001.jf.intel.com>
Date:	Sun, 23 Jan 2011 18:45:54 +0000
From:	Chris Wilson <chris@...is-wilson.co.uk>
To:	Michael Karcher <kernel@...rcher.dialup.fu-berlin.de>,
	airlied@...ux.ie, dri-devel@...ts.freedesktop.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/1] Use cachable mapping for i915 opregion.

On Sun, 23 Jan 2011 18:23:34 +0100, Michael Karcher <kernel@...rcher.dialup.fu-berlin.de> wrote:
> The opregion is a shared memory region between ACPI and the graphics
> driver. As the ACPI mapping has been changed to cachable in commit
> 6d5bbf00d251cc73223a71422d69e069dc2e0b8d, mapping the intel opregion
> non-cachable now fails. As no bus-master hardware is involved in the
> opregion, cachable map should do no harm.

Satisfied myself that is indeed equivalent to use the newly introduced
acpi_os_ioremap for this purpose and applied to -fixes.
Thanks,
-Chris

-- 
Chris Wilson, Intel Open Source Technology Centre
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/