Date: Tue, 8 Jul 1997 10:11:40 -0700 (PDT)
Message-Id: <199707081711.KAA26890@adit.ap.net>
Mime-Version: 1.0
Content-Type: text/plain; charset="us-ascii"
To: Johan Karlsson <k AT sm DOT luth DOT se>
From: Nate Eldredge <eldredge AT ap DOT net>
Subject: Re: Protected mode
Cc: djgpp AT delorie DOT com
Precedence: bulk

At 09:49  7/7/1997 +0200, you wrote:
>Nate Eldredge wrote:
>>    if ((mem_bd_linear = __dpmi_physical_address_mapping(&meminfo_block))
== -1)
>>       abort();
>Does __dpmi_phys_addr_mapping return the address to use. I think it sets
>meminfo_block.address.
>which means: 
>mem_bd_linear = meminfo_block.address;

You're right. Sorry.
>
>>    /* Now we lock it so nobody gets any funny ideas about swapping it */
>
>Does this mean it won't be cached aswell?
>Or is there other anyway to make sure that it will not be cached.
>There is a way of setting all the dirty bits in the cache but this
>involves asambly and I don't like that.
No. I had a look at the CWSDPMI source code and it looks like the only thing
locking does is set a flag not to page out that page. So you'll have to find
another way to disable caching if that's a problem :-(

Nate Eldredge
eldredge AT ap DOT net