Date: Tue, 13 Feb 1996 08:10:24 -0800 From: "Justin T. Gibbs" <gibbs@freefall.freebsd.org> To: se@ZPR.Uni-Koeln.DE (Stefan Esser) Cc: Richard J Kuhns <rjk@sparcmill.grauel.com>, freebsd-stable@freebsd.org Subject: Re: One problem && one question Message-ID: <199602131610.IAA19906@freefall.freebsd.org> In-Reply-To: Your message of "Tue, 13 Feb 1996 16:28:43 %2B0100." <199602131528.AA05771@Sysiphos>
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>On Feb 13, 9:39, Richard J Kuhns wrote:
>} Subject: Re: One problem && one question
>} Justin T. Gibbs writes:
>} > Patch round two:
>}
>} Sorry, still no cigar. I rebooted this machine several times this morning,
>} trying to copy the boot messages. I guess I'd better set up a minimal
>} configuration to test this so the bt messages will remain on-screen.
>}
>} At any rate, I believe it looked like:
>}
>} <Buslogic id info> int a irq 10 pci 0:13
>} mapreg[10] type 1 addr 0x00006000 size ffff0004
>} bt0: Invalid base address
>
>The region size calculation seems broken!
The driver only cares about the I/O port, which isn't reported above. I've
seen boot -v output from bt946 cards before, and they at least report a
sane I/O port address like 0x330 (when listed as a device without a driver)
- never looked at the size, but it should be 4. I wouldn't bother hacking
up the memory size calculation just for this card since we won't even use
it. I just sent him an updated patch, that corrects some mistakes I made
in the last one, but I did notice something odd in the PCI code:
if (bootverbose) {
for (reg=PCI_MAP_REG_START; reg<PCI_MAP_REG_END; reg+=4) {
data = pcibus->pb_read (tag, reg);
if ((data&~7)==0) continue;
switch (data&7) {
case 1:
case 5:
printf (" map(%x): io(%lx)\n",
reg, data & ~3);
break;
I guess that everything must be quad-word aligned so that is why you
& ~3? Is this in the spec even for I/O ports?
>--
> Stefan Esser, Zentrum fuer Paralleles Rechnen Tel: +49 221 4706021
> Universitaet zu Koeln, Weyertal 80, 50931 Koeln FAX: +49 221 4705160
> =============================================================================
>=
> http://www.zpr.uni-koeln.de/~se <se@ZPR.Uni-Koeln.DE>
--
Justin T. Gibbs
===========================================
FreeBSD: Turning PCs into workstations
===========================================
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