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SubjectAGP problem SiS 746FX Linux 2.6.5-rc3
Date
Hi,

in 2.6.5-rc3 was incorporated a fix for SiS648 chipsets that need a little
time to get into a sane state again, after switching to AGP 8x.
The 746FX has the same timing problem and needs this 'pause', too.
Unfortunatly in sis-apg.c this fix is only checked against the 648, not the
746, so the fix never gets invoked:

if(device->device == PCI_DEVICE_ID_SI_648) {
// weird: on 648 and 648fx chipsets any rate change in the target command
register
// triggers a 5ms screwup during which the master cannot be configured
printk(KERN_INFO PFX "sis 648 agp fix - giving bridge time to recover\n");
set_current_state(TASK_UNINTERRUPTIBLE);
schedule_timeout (1+(HZ*10)/1000);


Glück Auf,
Volker


--
Conclusions
In a straight-up fight, the Empire squashes the Federation like a bug. Even
with its numerical advantage removed, the Empire would still squash the
Federation like a bug. Accept it. -Michael Wong
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