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 29 00 3c rlwinm r9,r9,0,0,30
> 30: 91 23 00 00 stw r9,0(r3)
> 34: 7c 00 22 64 tlbie r4,r0
> 38: 7c 00 04 ac hwsync
> 3c: 38 60 00 00 li r3,0
> 40: 4e 80 00 20 blr
>
> [...]
Applied to powerpc/next.
[1/1] powerpc: align address to page boundary in change_page_attr()
https://git.kernel.org/powerpc/c/65883b78bc9f49ac891bb202c59fcb76b9cfc611
cheers
