diff options
Diffstat (limited to 'arch/arm/Kconfig')
| -rw-r--r-- | arch/arm/Kconfig | 27 |
1 files changed, 13 insertions, 14 deletions
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index a8b82c2f333b..0fb4b218f665 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -1352,20 +1352,19 @@ config ARM_MODULE_PLTS configurations. If unsure, say y. config ARCH_FORCE_MAX_ORDER - int "Maximum zone order" - default "12" if SOC_AM33XX - default "9" if SA1111 - default "11" - 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. + int "Order of maximal physically contiguous allocations" + default "11" if SOC_AM33XX + default "8" if SA1111 + default "10" + help + The kernel page allocator limits the size of maximal physically + contiguous allocations. The limit is called MAX_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. config ALIGNMENT_TRAP def_bool CPU_CP15_MMU |