Messages in this thread | | | From | "Hemmann, Volker Armin" <> | Subject | AGP problem SiS 746FX Linux 2.6.5-rc3 | Date | Thu, 1 Apr 2004 19:00:47 +0200 |
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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
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