Subject: Re: mmap'ing framebuffer memory in MI drivers...
To: None <>
From: Jason Thorpe <>
List: tech-kern
Date: 03/03/1999 12:02:17
On Wed, 3 Mar 1999 11:57:00 -0800 (PST) 
 "Eduardo E. Horvath" <> wrote:

 > > But there's no MI way to do this: some ports use low_order bits as
 > > flags, some use high-order bits, and there's not even a standard
 > > namespace of MI flags.
 > Yes, I noted this when I split vm_offset_t into paddr_t and vaddr_t.  One
 > solution would be to define a paddr_t with all the extra fields to define
 > whether it's cacheable, etc.  

AAACK!  I _already_, some months ago, posted what the API for this
should look like.

Please search the tech-kern archives for "bus_space_mmap".

        -- Jason R. Thorpe <>