Messages in this thread | | | Subject | Re: New kernel/resource.c | From | Jes Sorensen <> | Date | 02 Aug 1999 13:36:45 +0200 |
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>>>>> "Russell" == Russell King <rmk@arm.linux.org.uk> writes:
Russell> Jes Sorensen writes: >> The only thing that sucks about this is when you have adapters with >> the exact same chips on them on both PCI and SBUS and you would >> like to write a generic driver which determines at runtime what >> type of bus it is on. Having to recompile the same code with new >> macros one for sbus and one for pci is evil as well. >> >> Not sure what the pretty solution is though.
Russell> Exactly the same thing happens on some ARM machines, where we Russell> have two different address spaces. One of them is a PC view Russell> of the IO devices, which is 0x0000 to 0xffff. The other is Russell> for expansion cards and other internal devices, which have Russell> bit 31 set.
The problem I am thinking of is more the problem of addressing SBUS and PCI shared memory using the same macros.
Jes
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