From: Denis Vlasenko <vda@ilport.com.ua>
To: Vivek Kutal <vivek.kutal@gmail.com>
Cc: Ingo Oeser <ioe-lkml@rameria.de>, linux-kernel@vger.kernel.org
Subject: Re: Need for SHIFT and MASK
Date: Mon, 10 Oct 2005 17:37:38 +0300 [thread overview]
Message-ID: <200510101737.39171.vda@ilport.com.ua> (raw)
In-Reply-To: <b9a245c10510091140q78c2480dqb095a7cdab12932e@mail.gmail.com>
On Sunday 09 October 2005 21:40, Vivek Kutal wrote:
> Hi Ingo,
>
> > This is usally table driven and someone has to set up
> > this "Page Translation Tables". That's a job of the Linux kernel.
>
> Yes setting up the page table entries is the job of the kernel , but
> for that we need to put the physical add. of the page and some bits
> (present,access writes etc) in the entry, once it is done the main job
> of translation which requires the masking and shifting is done by the
> processor whenever that page is referenced .
> so why these macros are present in the kernel?
They are needed. You can remome them.
NB: joke tags are invisible, but they are there.
--
vda
prev parent reply other threads:[~2005-10-10 14:38 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-10-09 12:02 Vivek Kutal
2005-10-09 12:23 ` Ingo Oeser
2005-10-09 18:40 ` Vivek Kutal
2005-10-10 0:21 ` Fawad Lateef
2005-10-10 13:13 ` Vivek Kutal
2005-10-10 16:49 ` Fawad Lateef
2005-10-10 14:37 ` Denis Vlasenko [this message]
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