Messages in this thread |  | | | Subject | Re: [PATCH,CFT] Tentative fix for mem. corruption caused by intel 815 AGP | | From | Alan Cox <> | | Date | 27 May 2002 12:03:06 +0100 |
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On Mon, 2002-05-27 at 10:32, Nicolas Aspert wrote: p to */ > + pci_read_config_dword(agp_bridge.dev, INTEL_APBASE, &temp); > + agp_bridge.gart_bus_addr = (temp & PCI_BASE_ADDRESS_MEM_MASK); > + > + /* attbase - aperture base */ > + /* the Intel 815 chipset spec. says that bits 29-31 in the > + * ATTBASE register are reserved -> try not to write them */ > + if (agp_bridge.gatt_bus_addr & (~ INTEL_815_ATTBASE_MASK)) > + panic("gatt bus addr too high"); > + addr = agp_bridge.gatt_bus_addr & INTEL_815_ATTBASE_MASK;
You need to add + temp&~INTEL_815_ATTBASE_MASK ..
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