diff options
Diffstat (limited to 'arch/nios2/Kconfig')
| -rw-r--r-- | arch/nios2/Kconfig | 25 |
1 files changed, 12 insertions, 13 deletions
diff --git a/arch/nios2/Kconfig b/arch/nios2/Kconfig index 4167f1eb4cd8..58d9565dc2c7 100644 --- a/arch/nios2/Kconfig +++ b/arch/nios2/Kconfig @@ -16,6 +16,7 @@ config NIOS2 select HAVE_ARCH_TRACEHOOK select HAVE_ARCH_KGDB select IRQ_DOMAIN + select LOCK_MM_AND_FIND_VMA select MODULES_USE_ELF_RELA select OF select OF_EARLY_FLATTREE @@ -44,20 +45,18 @@ menu "Kernel features" source "kernel/Kconfig.hz" -config FORCE_MAX_ZONEORDER - int "Maximum zone order" - range 9 20 - default "11" +config ARCH_FORCE_MAX_ORDER + int "Order of maximal physically contiguous allocations" + default "10" help - The kernel memory allocator divides physically contiguous memory - blocks into "zones", where each zone is a power of two number of - pages. This option selects the largest power of two that the kernel - keeps in the memory allocator. If you need to allocate very large - blocks of physically contiguous memory, then you may need to - increase this value. - - This config option is actually maximum order plus one. For example, - a value of 11 means that the largest free memory block is 2^10 pages. + The kernel page allocator limits the size of maximal physically + contiguous allocations. The limit is called MAX_PAGE_ORDER and it + defines the maximal power of two of number of pages that can be + allocated as a single contiguous block. This option allows + overriding the default setting when ability to allocate very + large blocks of physically contiguous memory is required. + + Don't change if unsure. endmenu |