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Re: radeonfb on Pegasos




On Nov 10, 2007, at 10:55 PM, Tim Rightnour wrote:


On 10-Nov-2007 Frank Wille wrote:
Then I remembered the KERNEL_SR and VM_MIN_KERNEL_ADDRESS defines, which, as I understand it, define the start address of kernel-memory allocations?
KERNEL_SR is 13, so it is 0xd0000000 as well!

1) user space is complete separate from kernel.
2) kernel space starts anywhere after physical memory ends.
3) I/O space -> kernel_space need not be pa:va

You could have the kernel map va 0x8....... to 0xd.......

If at all posible, leave KERNEL_SR as 0xd to catch bogus 0xdeadXXXX
references.





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