"MEHTA,HIREN (A-SanJose,ex1)" wrote:
> I have a PCI card which has on-card ram/rom which gets mapped
> into pci address space and there is a separate base register
> for this memory. Now the question is : can I access this on-card
> memory by converting the pci base address into the virtual address
> using bus_to_virt and adding the required offset ? Or do I need
> to use ioremap function to map the physical address space starting
> from the pci base address into the kernel virtual address space ?
> Or is there any other interface to access the on-card memory ?
> Is it that bus_to_virt can be used only for the normal RAM ?
Use ioremap.
For more details, read linux/Documentation/IO-mapping.txt.
Jeff
-- Jeff Garzik | "When I do this, my computer freezes." Building 1024 | -user MandrakeSoft | "Don't do that." | -level 1 - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org Please read the FAQ at http://www.tux.org/lkml/
This archive was generated by hypermail 2b29 : Wed Nov 15 2000 - 21:00:13 EST