Andrew Morton writes:
> On Sun, 08 Oct 2023 09:54:22 +1100 Michael Ellerman
> wrote:
>
>> > I don't know why powerpc's PTE_INDEX_SIZE is variable.
>>
>> To allow a single vmlinux to boot using either the Hashed Page Table
>> MMU, or Radix Tree MMU, which have different page table geometry.
>>
On 10.10.23 02:20, Andrew Morton wrote:
On Sun, 08 Oct 2023 09:54:22 +1100 Michael Ellerman wrote:
I don't know why powerpc's PTE_INDEX_SIZE is variable.
To allow a single vmlinux to boot using either the Hashed Page Table
MMU, or Radix Tree MMU, which have different page table geometry.
On Sun, 08 Oct 2023 09:54:22 +1100 Michael Ellerman wrote:
> > I don't know why powerpc's PTE_INDEX_SIZE is variable.
>
> To allow a single vmlinux to boot using either the Hashed Page Table
> MMU, or Radix Tree MMU, which have different page table geometry.
>
> That's a pretty crucial feature
Andrew Morton writes:
> On Fri, 29 Sep 2023 12:44:15 +0100 Ryan Roberts wrote:
>
>> In preparation for adding support for anonymous large folios that are
>> smaller than the PMD-size, introduce 2 new sysfs files that will be used
>> to control the new behaviours via the transparent_hugepage
On 29/09/2023 23:55, Andrew Morton wrote:
> On Fri, 29 Sep 2023 12:44:15 +0100 Ryan Roberts wrote:
>
>> In preparation for adding support for anonymous large folios that are
>> smaller than the PMD-size, introduce 2 new sysfs files that will be used
>> to control the new behaviours via the
On Fri, 29 Sep 2023 12:44:15 +0100 Ryan Roberts wrote:
> In preparation for adding support for anonymous large folios that are
> smaller than the PMD-size, introduce 2 new sysfs files that will be used
> to control the new behaviours via the transparent_hugepage interface.
> For now, the kernel
