select GENERIC_IRQ_SHOW
select GENERIC_PCI_IOMAP
select GENERIC_SCHED_CLOCK
+ 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
select IRQ_DOMAIN
select MODULES_USE_ELF_RELA
+ select PERF_USE_VMALLOC
select VIRT_TO_BUS
help
Xtensa processors are 32-bit RISC machines designed by Tensilica
def_bool y
config MMU
- bool
- default n if !XTENSA_VARIANT_CUSTOM
- default XTENSA_VARIANT_MMU if XTENSA_VARIANT_CUSTOM
+ def_bool n
config VARIANT_IRQ_SWITCH
def_bool n
config HAVE_XTENSA_GPIO32
def_bool n
-config MAY_HAVE_SMP
- def_bool n
-
menu "Processor type and features"
choice
config XTENSA_VARIANT_CUSTOM
bool "Custom Xtensa processor configuration"
- select MAY_HAVE_SMP
select HAVE_XTENSA_GPIO32
help
Select this variant to use a custom Xtensa processor configuration.
bool "Core variant has a Full MMU (TLB, Pages, Protection, etc)"
depends on XTENSA_VARIANT_CUSTOM
default y
+ select MMU
help
Build a Conventional Kernel with full MMU support,
ie: it supports a TLB with auto-loading, page protection.
+config XTENSA_VARIANT_HAVE_PERF_EVENTS
+ bool "Core variant has Performance Monitor Module"
+ depends on XTENSA_VARIANT_CUSTOM
+ default n
+ help
+ Enable if core variant has Performance Monitor Module with
+ External Registers Interface.
+
+ If unsure, say N.
+
config XTENSA_UNALIGNED_USER
bool "Unaligned memory access in use space"
help
config HAVE_SMP
bool "System Supports SMP (MX)"
- depends on MAY_HAVE_SMP
+ depends on XTENSA_VARIANT_CUSTOM
select XTENSA_MX
help
This option is use to indicate that the system-on-a-chip (SOC)
the CPU core definition and currently needs to be selected manually.
Multiprocessor support in implemented with external cache and
- interrupt controlers.
+ interrupt controllers.
The MX interrupt distributer adds Interprocessor Interrupts
and causes the IRQ numbers to be increased by 4 for devices
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"
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