Messages in this thread |  | | From | "MEHTA,HIREN (A-SanJose,ex1)" <> | Subject | accessing on-card ram/rom | Date | Wed, 8 Nov 2000 17:48:47 -0500 |
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Hi All,
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 ?
I tried using bus_to_virt to get the virtual address and then access it and the kernel panics.
Please copy me on your replies as I am not on the list.
Thanks and regards, -hiren - 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/
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