Subject: RETINA_SPEED_HACK (Was Re: port-amiga/1746)
To: None <amiga@NetBSD.ORG>
From: Robert Leland Root <>
List: amiga
Date: 11/12/1995 14:50:45
I had filed a problem report below about the RETINA_SPEED_HACK problem
that exists in the present code. I believe that as it exists
now 030 machines will vm_fault() if RETINE_SPEED_HACK **is not** defined,
and 040 machines will vm_fault() if RETINA_SPEED_HACK **is** defined. 

It was my original impression that the code would work for all machines
if the RETINA_SPEED_HACK was defined, but I have since been corrected.

It would be nice if we could come up with a GENERIC kernel that works
for all Amiga's, my question is this:

Of the people that have a Retina are you using the RETINA_SPEED_HACK,
  and if you are, what CPU is your machine using.

Then hopefully we can get two volunteers to work with chris hopps to
resolve this problem.

Forwarded message:
> From chopps@NetBSD.ORG Sun Nov 12 03:51:38 1995
> Date: Sat, 11 Nov 1995 13:07:20 -0500
> From: "Christian E. Hopps" <chopps@NetBSD.ORG>
> Message-Id: <>
> To:,,
> Subject: Re: port-amiga/1746
> Synopsis: kernel vm_faults() with default GENERIC kernel
> State-Changed-From-To: open-feedback
> State-Changed-By: chopps
> State-Changed-When: Sat Nov 11 13:04:55 EST 1995
> State-Changed-Why: 
> I need to know what exactly is being reported.  i.e. panic/vmfault info.
> Its pretty hard to reproduce when you don't have a retina.  The driver
> does not work on 040 machines when RETINA_SPEED_HACK is defined.