This patch frees a PTE bit when using 64K pages on ppc64. This is done
by getting rid of the separate _PAGE_HASHPTE bit. Instead, we just test
if any of the 16 sub-page bits is set. For non-combo pages (ie. real
64K pages), we set SUB0 and the location encoding in that field.
Signed-off-by: Benjam
On Tue, 2008-06-10 at 14:00 +1000, Michael Ellerman wrote:
>
> This doesn't build for CONFIG_PPC_64K_PAGES=n and
> CONFIG_PPC_HAS_HASH_64K=y, because the asm is protected by the latter
> but the header definitions are protected by the former.
Crap ! This is going to be nasty... I have to think ab
On Thu, 2008-05-29 at 15:51 +1000, Benjamin Herrenschmidt wrote:
> This patch frees a PTE bit when using 64K pages on ppc64. This is done
> by getting rid of the separate _PAGE_HASHPTE bit. Instead, we just test
> if any of the 16 sub-page bits is set. For non-combo pages (ie. real
> 64K pages), we
This patch frees a PTE bit when using 64K pages on ppc64. This is done
by getting rid of the separate _PAGE_HASHPTE bit. Instead, we just test
if any of the 16 sub-page bits is set. For non-combo pages (ie. real
64K pages), we set SUB0 and the location encoding in that field.
Signed-off-by: Benjam
