[PATCH] powerpc: align address to page boundary in change_page_attr()

[Michael Ellerman]

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