[RFC] Dropping Alpha sparse mapping support from X

Robert A.Oram III debian at robertoram.com
Sun Sep 6 14:36:34 PDT 2009

	I only have EV56's or newer, so it won't affect me.  I always hate
to see support dropped for legacy hardware, but since I can't take over the
support myself, I guess I can't complain much!


-----Original Message-----
From: Matt Turner [mailto:mattst88 at gmail.com] 
Sent: Thursday, September 03, 2009 5:08 PM
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

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)?

Matt Turner

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