choice
prompt "Memory model"
depends on SELECT_MEMORY_MODEL
- default DISCONTIGMEM_MANUAL if ARCH_DISCONTIGMEM_DEFAULT
default SPARSEMEM_MANUAL if ARCH_SPARSEMEM_DEFAULT
default FLATMEM_MANUAL
help
config BOUNCE
bool "Enable bounce buffers"
default y
- depends on BLOCK && MMU && (ZONE_DMA || HIGHMEM)
+ depends on BLOCK && MMU && HIGHMEM
help
- Enable bounce buffers for devices that cannot access
- the full range of memory available to the CPU. Enabled
- by default when ZONE_DMA or HIGHMEM is selected, but you
- may say n to override this.
+ Enable bounce buffers for devices that cannot access the full range of
+ memory available to the CPU. Enabled by default when HIGHMEM is
+ selected, but you may say n to override this.
config VIRT_TO_BUS
bool
config KMAP_LOCAL
bool
+# struct io_mapping based helper. Selected by drivers that need them
+config IO_MAPPING
+ bool
endmenu