diff options
Diffstat (limited to 'arch/xtensa/Kconfig')
| -rw-r--r-- | arch/xtensa/Kconfig | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/arch/xtensa/Kconfig b/arch/xtensa/Kconfig index 3bd3504a6cc7..82044f732323 100644 --- a/arch/xtensa/Kconfig +++ b/arch/xtensa/Kconfig @@ -17,6 +17,7 @@ config XTENSA select HAVE_DMA_API_DEBUG select HAVE_DMA_ATTRS select HAVE_FUNCTION_TRACER + select HAVE_FUTEX_CMPXCHG if !MMU select HAVE_IRQ_TIME_ACCOUNTING select HAVE_OPROFILE select HAVE_PERF_EVENTS @@ -397,6 +398,20 @@ config SIMDISK1_FILENAME source "mm/Kconfig" +config FORCE_MAX_ZONEORDER + int "Maximum zone order" + 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. + source "drivers/pcmcia/Kconfig" source "drivers/pci/hotplug/Kconfig" @@ -408,7 +423,7 @@ config DEFAULT_MEM_START hex "Physical address of the default memory area start" depends on PLATFORM_WANT_DEFAULT_MEM default 0x00000000 if MMU - default 0x40000000 if !MMU + default 0x60000000 if !MMU help This is a fallback start address of the default memory area, it is used when no physical memory size is passed through DTB or through |