[Feature] add GA346 baseline version
Change-Id: Ic62933698569507dcf98240cdf5d9931ae34348f
diff --git a/src/kernel/linux/v4.19/arch/riscv/Kconfig b/src/kernel/linux/v4.19/arch/riscv/Kconfig
new file mode 100644
index 0000000..a344980
--- /dev/null
+++ b/src/kernel/linux/v4.19/arch/riscv/Kconfig
@@ -0,0 +1,245 @@
+#
+# For a description of the syntax of this configuration file,
+# 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_PCI_IOMAP
+ select GENERIC_STRNCPY_FROM_USER
+ select GENERIC_STRNLEN_USER
+ select GENERIC_SMP_IDLE_THREAD
+ select GENERIC_ATOMIC64 if !64BIT || !RISCV_ISA_A
+ select HAVE_MEMBLOCK
+ select HAVE_MEMBLOCK_NODE_MAP
+ select HAVE_DMA_CONTIGUOUS
+ select HAVE_GENERIC_DMA_COHERENT
+ select HAVE_PERF_EVENTS
+ select IRQ_DOMAIN
+ select NO_BOOTMEM
+ select RISCV_ISA_A if SMP
+ select SPARSE_IRQ
+ select SYSCTL_EXCEPTION_TRACE
+ select HAVE_ARCH_TRACEHOOK
+ select MODULES_USE_ELF_RELA if MODULES
+ select THREAD_INFO_IN_TASK
+ select RISCV_TIMER
+ select GENERIC_IRQ_MULTI_HANDLER
+ select ARCH_HAS_PTE_SPECIAL
+
+config MMU
+ def_bool y
+
+config ZONE_DMA32
+ bool
+ default y if 64BIT
+
+config PAGE_OFFSET
+ hex
+ default 0xC0000000 if 32BIT && MAXPHYSMEM_2GB
+ default 0xffffffff80000000 if 64BIT && MAXPHYSMEM_2GB
+ default 0xffffffe000000000 if 64BIT && MAXPHYSMEM_128GB
+
+config STACKTRACE_SUPPORT
+ def_bool y
+
+config TRACE_IRQFLAGS_SUPPORT
+ def_bool y
+
+config RWSEM_GENERIC_SPINLOCK
+ def_bool y
+
+config GENERIC_BUG
+ def_bool y
+ depends on BUG
+ select GENERIC_BUG_RELATIVE_POINTERS if 64BIT
+
+config GENERIC_BUG_RELATIVE_POINTERS
+ bool
+
+config GENERIC_CALIBRATE_DELAY
+ def_bool y
+
+config GENERIC_CSUM
+ def_bool y
+
+config GENERIC_HWEIGHT
+ def_bool y
+
+config PGTABLE_LEVELS
+ int
+ default 3 if 64BIT
+ default 2
+
+config HAVE_KPROBES
+ def_bool n
+
+menu "Platform type"
+
+choice
+ prompt "Base ISA"
+ default ARCH_RV64I
+ help
+ This selects the base ISA that this kernel will traget and must match
+ the target platform.
+
+config ARCH_RV32I
+ bool "RV32I"
+ select 32BIT
+ select GENERIC_LIB_ASHLDI3
+ select GENERIC_LIB_ASHRDI3
+ select GENERIC_LIB_LSHRDI3
+ select GENERIC_LIB_UCMPDI2
+
+config ARCH_RV64I
+ bool "RV64I"
+ 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
+
+# We must be able to map all physical memory into the kernel, but the compiler
+# is still a bit more efficient when generating code if it's setup in a manner
+# such that it can only map 2GiB of memory.
+choice
+ prompt "Kernel Code Model"
+ default CMODEL_MEDLOW if 32BIT
+ default CMODEL_MEDANY if 64BIT
+
+ config CMODEL_MEDLOW
+ bool "medium low code model"
+ config CMODEL_MEDANY
+ bool "medium any code model"
+endchoice
+
+config MODULE_SECTIONS
+ bool
+ select HAVE_MOD_ARCH_SPECIFIC
+
+choice
+ prompt "Maximum Physical Memory"
+ default MAXPHYSMEM_2GB if 32BIT
+ default MAXPHYSMEM_2GB if 64BIT && CMODEL_MEDLOW
+ default MAXPHYSMEM_128GB if 64BIT && CMODEL_MEDANY
+
+ config MAXPHYSMEM_2GB
+ bool "2GiB"
+ config MAXPHYSMEM_128GB
+ depends on 64BIT && CMODEL_MEDANY
+ select MODULE_SECTIONS if MODULES
+ bool "128GiB"
+endchoice
+
+
+config SMP
+ bool "Symmetric Multi-Processing"
+ help
+ This enables support for systems with more than one CPU. If
+ you say N here, the kernel will run on single and
+ multiprocessor machines, but will use only one CPU of a
+ multiprocessor machine. If you say Y here, the kernel will run
+ on many, but not all, single processor machines. On a single
+ processor machine, the kernel will run faster if you say N
+ here.
+
+ If you don't know what to do here, say N.
+
+config NR_CPUS
+ int "Maximum number of CPUs (2-32)"
+ range 2 32
+ depends on SMP
+ default "8"
+
+choice
+ prompt "CPU Tuning"
+ default TUNE_GENERIC
+
+config TUNE_GENERIC
+ bool "generic"
+
+endchoice
+
+config RISCV_ISA_C
+ bool "Emit compressed instructions when building Linux"
+ default y
+ help
+ Adds "C" to the ISA subsets that the toolchain is allowed to emit
+ when building Linux, which results in compressed instructions in the
+ Linux binary.
+
+ If you don't know what to do here, say Y.
+
+config RISCV_ISA_A
+ def_bool y
+
+menu "supported PMU type"
+ depends on PERF_EVENTS
+
+config RISCV_BASE_PMU
+ bool "Base Performance Monitoring Unit"
+ def_bool y
+ help
+ A base PMU that serves as a reference implementation and has limited
+ feature of perf. It can run on any RISC-V machines so serves as the
+ fallback, but this option can also be disable to reduce kernel size.
+
+endmenu
+
+endmenu
+
+menu "Kernel type"
+
+source "kernel/Kconfig.hz"
+
+endmenu
+
+menu "Bus support"
+
+config PCI
+ bool "PCI support"
+ select PCI_MSI
+ help
+ This feature enables support for PCI bus system. If you say Y
+ here, the kernel will include drivers and infrastructure code
+ to support PCI bus devices.
+
+ If you don't know what to do here, say Y.
+
+config PCI_DOMAINS
+ def_bool PCI
+
+config PCI_DOMAINS_GENERIC
+ def_bool PCI
+
+source "drivers/pci/Kconfig"
+
+endmenu
+
+menu "Power management options"
+
+source kernel/power/Kconfig
+
+endmenu