[RFC] Dropping Alpha sparse mapping support from X

[Davis Johnson]

I have two EV4 or 45 alphas that I use.

The AS500/166 I use for regression testing. When I hit significant 
milestones in some of my play projects I'll do regression testing on the 
alpha to make sure that I haven't introduced any portability issues. 
Getting X working on the AlphaStation hasn't been high on my priority 
list, but I've been halfway planning to some day. Truthfully, someday 
hasn't gotten any closer in the last 5 years, so I can't exactly 
complain that this would hurt me. I have been wanting somthing faster, 
however.

If faster more modern systems are cheap and plentiful, what should I 
look for and where?

The other is an alphabook 1 that I use when I feel like beating my head 
against the wall. I've managed to build two kinds of kernels. The first 
kind recognizes the scsi controler and disk. I can build kenels and play 
adventure with this one all week except it does not recognize the PCMCIA 
bridge. The other kind of kernel seems to recognize the PCMCIA bridge 
but breaks the SCSI controler. Not being able to find the root file 
system, it dies.

Anybody out there have a kernel that supports both SCSI and PCMCIA on 
the alphabook 1, or better yet .configure and patches so I can build my own?

I have found references to netbooting an alphabook. It appears to 
require a specific 3com nic. Does it boot from BOOTP or MOP? What device 
do I specify on the boot command line?

Dialup Jon Norstog wrote:

>Todd,
>
>are you maintaining for the Alpha "community?"  Where do you live?
>
>I've done just what you suggest for people who were deeply involved inthe
>Alpha core project.
>
>jn
>
>
>---------- Original Message -----------
>From: "Smith, Todd" <Todd.Smith at camc.org>
>To: "Linux on Alpha processors" <axp-list at redhat.com>
>Sent: Wed, 16 Sep 2009 17:10:25 -0400
>Subject: RE: [RFC] Dropping Alpha sparse mapping support from X
>
>  
>
>>I don't use X on EV4 but I do have a 21066 UDB machine that I still run.
>>I hope that dropping total support for EV4 isn't on the table unless
>>someone has a better Alpha that they will ship me for the cost of
>>shipping.
>>
>>Todd Smith
>>
>>-----Original Message-----
>>From: axp-list-bounces at redhat.com [mailto:axp-list-
>>bounces at redhat.com] On Behalf Of Matt Turner Sent: Thursday, 
>>September 03, 2009 17:08 To: xorg-devel at lists.freedesktop.org; 
>>debian-alpha at lists.debian.org; Linux on Alpha processors Subject: 
>>[RFC] Dropping Alpha sparse mapping support from X
>>
>>Hi,
>>I'd like to drop support for non-BWX Alphas (EV4 and original EV5) from
>>
>>X. These machines can't load/store to single bytes and require 
>>special sparse memory mappings.
>>
>>The code required to select which functions (sparse, dense) is
>>convoluted, adds an extra layer of indirection, probably gets close 
>>to zero usage, and even less testing.
>>
>>Does anyone use X on EV4 or EV5 (not EV56, EV56 has BWX)?
>>
>>Thanks,
>>Matt Turner
>>
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