Subject: Re: radeonfb on Pegasos
To: Frank Wille <firstname.lastname@example.org>
From: Matt Thomas <email@example.com>
Date: 11/11/2007 00:14:57
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
>> 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