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Date:      Sat, 4 Nov 2000 18:55:01 +0100
From:      Wilko Bulte <wkb@freebie.demon.nl>
To:        Mike Smith <msmith@freebsd.org>
Cc:        hackers@freebsd.org
Subject:   Re: user-space resource information...
Message-ID:  <20001104185501.A12863@freebie.demon.nl>
In-Reply-To: <200011041143.eA4BhSF08392@mass.osd.bsdi.com>; from msmith@freebsd.org on Sat, Nov 04, 2000 at 03:43:28AM -0800
References:  <200011041143.eA4BhSF08392@mass.osd.bsdi.com>

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On Sat, Nov 04, 2000 at 03:43:28AM -0800, Mike Smith wrote:
> 
> Well, I'm really sick of people complaining about not being able to get 
> at the things the resource manager knows from userspace.  So I've done 
> something about it.
> 
> Please review:
> 
>   http://ziplok.dyndns.org/msmith/rman.diff
>   http://ziplok.dyndns.org/msmith/iostat.diff
> 
> which adds the new '-r' flag to iostat which will print the current 
> resource manager ownership database.  I have similar interfaces underway 
> to access the devclass and device trees, so that an enterprising 
> user-space hacker could trivially construct a complete map of the system 
> bus and resource structure using any of several different organisations.
> 
> I may write a small user-space library to sit on top of these interfaces 
> to make life easier.  sysctl is not the cleanest of interfaces for this 
> application, but it does the job.
> 
> Comments?  Here's some sample output; the leading index numbers are 

Just 2: why are the irqs displayed in hex?
And: will it work on alphas? ;-)

I really like it, don't misinterpret me please!

> possibly misleading and I was considering removing them.  I haven't 

I'd remove it if I were you.

> decided yet what to do about formatting conventions; they may end up 
> going into the rman initialisation.
> 
>  0: Interrupt request lines  0x0-0xf
>    0: attimer0          0x0 
>    1: atkbd0            0x1  active shareable
>    2: atpic0            0x2 
>    3: sio1              0x3  active
>    4: sio0              0x4  active
>    6: ppc0              0x7  active shareable
>    7: attimer1          0x8 
>    9: uhci0             0xa  active shareable
>   11: nomatch           0xc 
>   12: npxisa0           0xd 
>   13: ata0              0xe  active
>   14: ata1              0xf  active
>  1: DMA request lines  0x0-0x7
>    1: ppc0              0x3  active
>    2: atdma0            0x4 
>  2: I/O ports         0x0-0xffff
>    0: atdma0            0x0-0xf 
>    2: atpic0            0x20-0x21 
>    4: attimer0          0x40-0x43 
>    6: atkbdc0           0x60  active
>    7: nomatch           0x61 
>    9: atkbdc0           0x64  active
>   11: attimer1          0x70-0x71 
>   13: atdma0            0x80-0x90 
>   15: atdma0            0x94-0x9f 
>   16: atpic0            0xa0-0xa1 
>   18: atdma0            0xc0-0xde 
>   20: npxisa0           0xf0 
>   22: ata1              0x170-0x177  active
>   24: ata0              0x1f0-0x1f7  active
>   26: sysresource1      0x290-0x297 
>   28: sio1              0x2f8-0x2ff  active
>  3: I/O memory addresses  0x0-0xffffffff
>    0: sysresource0      0x0-0x9ffff 
>    1: vga0              0xa0000-0xbffff  active shareable
>    3: sysresource0      0xcd000-0xcffff 
>    5: sysresource0      0xe8000-0xeffff 
>    6: sysresource0      0xf0000-0xf3fff 
>    7: sysresource0      0xf4000-0xf7fff 
>    8: sysresource0      0xf8000-0xfffff 
>    9: sysresource0      0x100000-0x7ffffff 
>   11: fxp0              0xe3000000-0xe3000fff  active
>   13: sysresource0      0xfffe0000-0xffffffff 

-- 
Wilko Bulte  	 					Arnhem, the Netherlands
wilko@freebsd.org  	http://www.freebsd.org 		http://www.nlfug.nl



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