Messages in this thread | | | From | Kumar Gala <> | Subject | UIO support for >32-bit physical addresses on 32-bit platforms | Date | Tue, 23 Feb 2010 08:54:16 -0600 |
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Hans, Greg,
We are looking at using UIO for some driver work and noticed it assumes the address for MMIO regions is an 'unsigned long'. This is a problem for the platforms we have in which we support a 36-bit physical address in a 32-bit machine.
Should we just change addr/size in struct uio_mem to u64 always? At first I was thinking phys_addr_t but realized the addr could be PHYS, LOGICAL, or VIRTUAL.
- k
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