# see Documentation/kbuild/kconfig-language.txt.
#
+config 64BIT
+ bool
+
+config 32BIT
+ bool
+
config RISCV
def_bool y
+ # even on 32-bit, physical (and DMA) addresses are > 32-bits
+ select PHYS_ADDR_T_64BIT
select OF
select OF_EARLY_FLATTREE
select OF_IRQ
select ARCH_WANT_FRAME_POINTERS
select CLONE_BACKWARDS
select COMMON_CLK
+ select DMA_DIRECT_OPS
select GENERIC_CLOCKEVENTS
select GENERIC_CPU_DEVICES
select GENERIC_IRQ_SHOW
select GENERIC_ATOMIC64 if !64BIT || !RISCV_ISA_A
select HAVE_MEMBLOCK
select HAVE_MEMBLOCK_NODE_MAP
- select HAVE_DMA_API_DEBUG
select HAVE_DMA_CONTIGUOUS
select HAVE_GENERIC_DMA_COHERENT
select IRQ_DOMAIN
select THREAD_INFO_IN_TASK
select RISCV_TIMER
select GENERIC_IRQ_MULTI_HANDLER
+ select ARCH_HAS_PTE_SPECIAL
config MMU
def_bool y
-# even on 32-bit, physical (and DMA) addresses are > 32-bits
-config ARCH_PHYS_ADDR_T_64BIT
- def_bool y
-
config ZONE_DMA32
bool
- default y
-
-config ARCH_DMA_ADDR_T_64BIT
- def_bool y
+ default y if 64BIT
config PAGE_OFFSET
hex
config HAVE_KPROBES
def_bool n
-config DMA_DIRECT_OPS
- def_bool y
-
menu "Platform type"
choice
config ARCH_RV32I
bool "RV32I"
- select CPU_SUPPORTS_32BIT_KERNEL
select 32BIT
select GENERIC_LIB_ASHLDI3
select GENERIC_LIB_ASHRDI3
config ARCH_RV64I
bool "RV64I"
- select CPU_SUPPORTS_64BIT_KERNEL
select 64BIT
select HAVE_FUNCTION_TRACER
select HAVE_FUNCTION_GRAPH_TRACER
select HAVE_FTRACE_MCOUNT_RECORD
select HAVE_DYNAMIC_FTRACE
select HAVE_DYNAMIC_FTRACE_WITH_REGS
+ select SWIOTLB
endchoice
depends on SMP
default "8"
-config CPU_SUPPORTS_32BIT_KERNEL
- bool
-config CPU_SUPPORTS_64BIT_KERNEL
- bool
-
choice
prompt "CPU Tuning"
default TUNE_GENERIC
menu "Kernel type"
-choice
- prompt "Kernel code model"
- default 64BIT
-
-config 32BIT
- bool "32-bit kernel"
- depends on CPU_SUPPORTS_32BIT_KERNEL
- help
- Select this option to build a 32-bit kernel.
-
-config 64BIT
- bool "64-bit kernel"
- depends on CPU_SUPPORTS_64BIT_KERNEL
- help
- Select this option to build a 64-bit kernel.
-
-endchoice
-
source "mm/Kconfig"
source "kernel/Kconfig.preempt"