Messages in this thread Patch in this message | | | From | Alexandre Ghiti <> | Subject | [PATCH v7 2/4] sparc: Advertise gigantic page support | Date | Sun, 17 Mar 2019 12:28:45 -0400 |
| |
sparc actually supports gigantic pages and selecting ARCH_HAS_GIGANTIC_PAGE allows it to allocate and free gigantic pages at runtime.
sparc allows configuration such as huge pages of 16GB, pages of 8KB and MAX_ORDER = 13 (default): HPAGE_SHIFT (34) - PAGE_SHIFT (13) = 21 >= MAX_ORDER (13)
Signed-off-by: Alexandre Ghiti <alex@ghiti.fr> Acked-by: David S. Miller <davem@davemloft.net> --- arch/sparc/Kconfig | 1 + 1 file changed, 1 insertion(+)
diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig index d5dd652fb8cc..0b7f0e0fefa5 100644 --- a/arch/sparc/Kconfig +++ b/arch/sparc/Kconfig @@ -90,6 +90,7 @@ config SPARC64 select ARCH_CLOCKSOURCE_DATA select ARCH_HAS_PTE_SPECIAL select PCI_DOMAINS if PCI + select ARCH_HAS_GIGANTIC_PAGE if (MEMORY_ISOLATION && COMPACTION) || CMA config ARCH_DEFCONFIG string -- 2.20.1
| |