Date: Thu, 30 Apr 1998 23:39:12 +0200 From: sthaug@nethelp.no To: freebsd-current@FreeBSD.ORG Subject: Patches to recognize 440BX chipset Message-ID: <3624.893972352@verdi.nethelp.no>
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I just got my hands on a 400 Mhz PII with 440BX chipset (100 MHz bus
and SDRAM, of course). pcisupport.c 1.62 doesn't recognize the 440BX
chipset, producing
Probing for devices on PCI bus 0:
chip0: <Host to PCI bridge (vendor=8086 device=7190)> rev 0x02 on pci0.0.0
chip1: <PCI to PCI bridge (vendor=8086 device=7191)> rev 0x02 on pci0.1.0
I made the following patch to recognize the 440BX chipset:
*** pci/pcisupport.c.orig Fri Mar 27 21:36:54 1998
--- pci/pcisupport.c Thu Apr 30 21:54:06 1998
***************
*** 214,219 ****
--- 214,225 ----
return ("Intel 82371AB USB host controller");
case 0x71138086:
return ("Intel 82371AB Power management controller");
+ case 0x71908086:
+ return ("Intel 82443BX host to PCI bridge");
+ case 0x71918086:
+ return ("Intel 82443BX host to AGP bridge");
+ case 0x71928086:
+ return ("Intel 82443BX host to PCI bridge (AGP disabled)");
case 0x12378086:
fixwsc_natoma(tag);
return ("Intel 82440FX (Natoma) PCI and memory controller");
The machine is (not unexpectedly) rather fast. Here are some STREAMS
results (just sent them to John McCalpin):
Function Rate (MB/s) RMS time Min time Max time
Copy: 304.0377 0.0528 0.0526 0.0542
Scale: 307.9172 0.0521 0.0520 0.0523
Add: 363.3005 0.0661 0.0661 0.0661
Triad: 315.3577 0.0762 0.0761 0.0762
Steinar Haug, Nethelp consulting, sthaug@nethelp.no
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