Re: [PATCH,CFT] Tentative fix for mem. corruption caused by intel

[Alan Cox]

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 ..