From: Dave Hansen <haveblue@us.ibm.com>
To: Hollis Blanchard <hollisb@us.ibm.com>
Cc: xen-devel@lists.sourceforge.net
Subject: Re: __va() vs phys_to_virt()
Date: Tue, 22 Mar 2005 12:45:00 -0800 [thread overview]
Message-ID: <1111524300.5045.86.camel@localhost> (raw)
In-Reply-To: <200503181232.12435.hollisb@us.ibm.com>
On Fri, 2005-03-18 at 12:32 -0600, Hollis Blanchard wrote:
> Can someone explain where it's appropriate to use __va() and where
> phys_to_virt() should be used instead? Or are they truly synonymous, and we
> should phase out one or the other?
One minor thing on some Linux arches is that virt_to_phys() is volatile,
__pa() is just a macro, so they have different optimization rules.
-- Dave
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prev parent reply other threads:[~2005-03-22 20:45 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-03-18 18:32 __va() vs phys_to_virt() Hollis Blanchard
2005-03-18 18:45 ` Xin Zhao
2005-03-18 18:46 ` Hollis Blanchard
2005-03-18 18:59 ` Jesse Barnes
2005-03-18 19:16 ` Hollis Blanchard
2005-03-22 20:45 ` Dave Hansen [this message]
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