From: bob picco <bpicco@xxxxxxxxxx> This patch introduces the option to select either three level page table support or four level page table support. Signed-off-by: Bob Picco <bob.picco@xxxxxxxxxx> --- arch/sparc/Kconfig | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig index a00cbd3..1369dfe 100644 --- a/arch/sparc/Kconfig +++ b/arch/sparc/Kconfig @@ -264,6 +264,15 @@ config US3_MC If in doubt, say Y, as this information can be very useful. +config SPARC_PGTABLE_LEVEL4 + bool "Page Table Level" + depends on SPARC64 && SMP + help + This enables sparc64 to access large physical memory + configuration. For example consider 45 bits of physical address + space (32 Tb). This option might impact your performance + in small memory configurations. + # Global things across all Sun machines. config GENERIC_LOCKBREAK bool -- 1.7.10.4 -- To unsubscribe from this list: send the line "unsubscribe sparclinux" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
