On Mon, 21 Mar 2022 16:44:45 +0100, Christophe Leroy wrote:
> Aligning address to page boundary allows flush_tlb_kernel_range()
> to know it's a single page flush and use tlbie instead of tlbia.
>
> On 603 we now have the following code in first leg of
> change_page_attr():
>
> 2c: 55 2
Aligning address to page boundary allows flush_tlb_kernel_range()
to know it's a single page flush and use tlbie instead of tlbia.
On 603 we now have the following code in first leg of
change_page_attr():
2c: 55 29 00 3c rlwinm r9,r9,0,0,30
30: 91 23 00 00 stw
