"Aneesh Kumar K.V" <aneesh.kumar@xxxxxxxxxxxxxxxxxx> writes: > On Thursday 18 May 2017 10:51 AM, Michael Ellerman wrote: >> "Aneesh Kumar K.V" <aneesh.kumar@xxxxxxxxxxxxxxxxxx> writes: >> >>> POWER9 supports hugepages of size 2M and 1G in radix MMU mode. This patch >>> enables the usage of 1G page size for hugetlbfs. This also update the helper >>> such we can do 1G page allocation at runtime. >>> >>> We still don't enable 1G page size on DD1 version. This is to avoid doing >>> workaround mentioned in commit: 6d3a0379ebdc8 (powerpc/mm: Add >>> radix__tlb_flush_pte_p9_dd1() >>> >>> Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@xxxxxxxxxxxxxxxxxx> >>> --- >>> arch/powerpc/include/asm/book3s/64/hugetlb.h | 10 ++++++++++ >>> arch/powerpc/mm/hugetlbpage.c | 7 +++++-- >>> arch/powerpc/platforms/Kconfig.cputype | 1 + >>> 3 files changed, 16 insertions(+), 2 deletions(-) >> >> I think this patch is OK, but it's very confusing because it doesn't >> mention that it's only talking about *generic* gigantic page support. > > What you mean by generic gigantic page ? what is supported here is the > gigantic page with size 1G alone ? What about 16G pages on pseries. And all the other gigantic page sizes that Book3E supports? cheers -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>
