nuttx/arch/risc-v/Kconfig
chao an a51ebeab4b arch/risc-v: decouple Per-CPU scratch with ARCH_USE_S_MODE
In some special chipsets, multiple CPUs may be bundled in one hardware
thread cluster, which results in hartid and cpuindex not being exactly
the same. The new option will decouple Scratch-based Per-CPU storage
with S-Mode to distinguish the real cpu index.

Signed-off-by: chao an <anchao@lixiang.com>
2024-04-25 09:48:59 -03:00

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#
# For a description of the syntax of this configuration file,
# see the file kconfig-language.txt in the NuttX tools repository.
#
if ARCH_RISCV
comment "RISC-V Options"
choice
prompt "RISC-V chip selection"
default ARCH_CHIP_RISCV_CUSTOM
config ARCH_CHIP_FE310
bool "SiFive FE310"
select ARCH_RV32
select ARCH_RV_ISA_M
select ARCH_RV_ISA_A
select ARCH_RV_ISA_C
select ONESHOT
select ALARM_ARCH
---help---
SiFive FE310 processor (E31 RISC-V Core with MAC extensions).
config ARCH_CHIP_K210
bool "Kendryte K210"
select ARCH_RV64
select ARCH_RV_ISA_M
select ARCH_RV_ISA_A
select ARCH_RV_ISA_C
select ARCH_HAVE_FPU if !K210_WITH_QEMU
select ARCH_HAVE_DPFPU if !K210_WITH_QEMU
select ARCH_HAVE_MPU
select ARCH_HAVE_TESTSET
select ARCH_HAVE_MULTICPU
select ARCH_HAVE_MISALIGN_EXCEPTION
select ONESHOT
select ALARM_ARCH
---help---
Kendryte K210 processor (RISC-V 64bit core with GC extensions)
config ARCH_CHIP_LITEX
bool "Enjoy Digital LITEX VEXRISCV"
select ARCH_RV32
select ARCH_RV_ISA_M
select ARCH_RV_ISA_A
select ARCH_DCACHE
select ARCH_HAVE_TICKLESS
select ARCH_HAVE_RESET
select LIBC_FDT
select DEVICE_TREE
---help---
Enjoy Digital LITEX VEXRISCV softcore processor (RV32IMA).
config ARCH_CHIP_BL602
bool "BouffaloLab BL602"
select ARCH_RV32
select ARCH_RV_ISA_M
select ARCH_RV_ISA_A
select ARCH_RV_ISA_C
select ARCH_HAVE_FPU
select ARCH_HAVE_RESET
select ARCH_HAVE_MISALIGN_EXCEPTION
select ONESHOT
select ALARM_ARCH
---help---
BouffaloLab BL602(rv32imfc)
config ARCH_CHIP_ESP32C3
bool "Espressif ESP32-C3"
select ARCH_RV32
select ARCH_RV_ISA_M
select ARCH_RV_ISA_C
select ARCH_VECNOTIRQ
select ARCH_HAVE_MPU
select ARCH_HAVE_RESET
select LIBC_ARCH_ATOMIC
select LIBC_ARCH_MEMCPY
select LIBC_ARCH_MEMCHR
select LIBC_ARCH_MEMCMP
select LIBC_ARCH_MEMMOVE
select LIBC_ARCH_MEMSET
select LIBC_ARCH_STRCHR
select LIBC_ARCH_STRCMP
select LIBC_ARCH_STRCPY
select LIBC_ARCH_STRLCPY
select LIBC_ARCH_STRNCPY
select LIBC_ARCH_STRLEN
select LIBC_ARCH_STRNLEN
select ARCH_HAVE_TEXT_HEAP
select ARCH_HAVE_BOOTLOADER
select ARCH_HAVE_PERF_EVENTS
---help---
Espressif ESP32-C3 (RV32IMC).
config ARCH_CHIP_ESP32C3_GENERIC
bool "ESP32-C3"
select ARCH_RV32
select ARCH_RV_ISA_M
select ARCH_RV_ISA_C
select ARCH_VECNOTIRQ
select ARCH_HAVE_BOOTLOADER if !ESPRESSIF_SIMPLE_BOOT
select ARCH_HAVE_MPU
select ARCH_HAVE_RESET
select ARCH_HAVE_RNG
select ARCH_HAVE_TICKLESS
select LIBC_ARCH_ATOMIC
select LIBC_ARCH_MEMCPY
select LIBC_ARCH_MEMCHR
select LIBC_ARCH_MEMCMP
select LIBC_ARCH_MEMMOVE
select LIBC_ARCH_MEMSET
select LIBC_ARCH_STRCHR
select LIBC_ARCH_STRCMP
select LIBC_ARCH_STRCPY
select LIBC_ARCH_STRLCPY
select LIBC_ARCH_STRNCPY
select LIBC_ARCH_STRLEN
select LIBC_ARCH_STRNLEN
select ESPRESSIF_SOC_RTC_MEM_SUPPORTED
select ARCH_CHIP_ESPRESSIF
---help---
ESP32-C3 chip with a single RISC-V IMC core, no embedded Flash memory
config ARCH_CHIP_ESP32C6
bool "ESP32-C6"
select ARCH_RV32
select ARCH_RV_ISA_M
select ARCH_RV_ISA_A
select ARCH_RV_ISA_C
select ARCH_VECNOTIRQ
select ARCH_HAVE_BOOTLOADER if !ESPRESSIF_SIMPLE_BOOT
select ARCH_HAVE_MPU
select ARCH_HAVE_RESET
select ARCH_HAVE_RNG
select ARCH_HAVE_TICKLESS
select LIBC_ARCH_MEMCPY
select LIBC_ARCH_MEMCHR
select LIBC_ARCH_MEMCMP
select LIBC_ARCH_MEMMOVE
select LIBC_ARCH_MEMSET
select LIBC_ARCH_STRCHR
select LIBC_ARCH_STRCMP
select LIBC_ARCH_STRCPY
select LIBC_ARCH_STRLCPY
select LIBC_ARCH_STRNCPY
select LIBC_ARCH_STRLEN
select LIBC_ARCH_STRNLEN
select ESPRESSIF_SOC_RTC_MEM_SUPPORTED
select ARCH_CHIP_ESPRESSIF
---help---
Espressif ESP32-C6 (RV32IMAC).
config ARCH_CHIP_ESP32H2
bool "ESP32-H2"
select ARCH_RV32
select ARCH_RV_ISA_M
select ARCH_RV_ISA_C
select ARCH_VECNOTIRQ
select ARCH_HAVE_BOOTLOADER if !ESPRESSIF_SIMPLE_BOOT
select ARCH_HAVE_MPU
select ARCH_HAVE_RESET
select ARCH_HAVE_RNG
select ARCH_HAVE_TICKLESS
select LIBC_ARCH_ATOMIC
select LIBC_ARCH_MEMCPY
select LIBC_ARCH_MEMCHR
select LIBC_ARCH_MEMCMP
select LIBC_ARCH_MEMMOVE
select LIBC_ARCH_MEMSET
select LIBC_ARCH_STRCHR
select LIBC_ARCH_STRCMP
select LIBC_ARCH_STRCPY
select LIBC_ARCH_STRLCPY
select LIBC_ARCH_STRNCPY
select LIBC_ARCH_STRLEN
select LIBC_ARCH_STRNLEN
select ESPRESSIF_ESPTOOLPY_NO_STUB
select ESPRESSIF_SOC_RTC_MEM_SUPPORTED
select ARCH_CHIP_ESPRESSIF
---help---
Espressif ESP32-H2 (RV32IMC).
config ARCH_CHIP_C906
bool "THEAD C906"
select ARCH_RV64
select ARCH_RV_ISA_M
select ARCH_RV_ISA_A
select ARCH_RV_ISA_C
select ARCH_HAVE_FPU
select ARCH_HAVE_DPFPU
select ARCH_HAVE_MPU
select ONESHOT
select ALARM_ARCH
---help---
THEAD C906 processor (RISC-V 64bit core with GCVX extensions).
config ARCH_CHIP_MPFS
bool "MicroChip Polarfire (MPFS)"
select ARCH_RV64
select ARCH_RV_ISA_M
select ARCH_RV_ISA_A
select ARCH_RV_ISA_C
select ARCH_HAVE_FPU
select ARCH_HAVE_DPFPU
select ARCH_HAVE_MPU
select ARCH_MMU_TYPE_SV39
select ARCH_HAVE_ADDRENV
select ARCH_NEED_ADDRENV_MAPPING
select ARCH_HAVE_RESET
select ARCH_HAVE_SPI_CS_CONTROL
select ARCH_HAVE_PWM_MULTICHAN
select ARCH_HAVE_S_MODE
select ONESHOT
select ALARM_ARCH
---help---
MicroChip Polarfire processor (RISC-V 64bit core with GCVX extensions).
config ARCH_CHIP_RV32M1
bool "NXP RV32M1"
select ARCH_RV32
select ARCH_RV_ISA_M
select ARCH_RV_ISA_C
---help---
NXP RV32M1 processor (RISC-V Core with PULP extensions).
config ARCH_CHIP_QEMU_RV
bool "QEMU RV"
select ARCH_HAVE_FPU
select ARCH_HAVE_DPFPU
select ARCH_HAVE_MULTICPU
select ARCH_HAVE_MPU
select ARCH_MMU_TYPE_SV39 if ARCH_CHIP_QEMU_RV64
select ARCH_MMU_TYPE_SV32 if ARCH_CHIP_QEMU_RV32
select ARCH_HAVE_ADDRENV
select ARCH_NEED_ADDRENV_MAPPING
select ARCH_HAVE_S_MODE
select ARCH_HAVE_ELF_EXECUTABLE
select ONESHOT
select ALARM_ARCH
---help---
QEMU Generic RV32/RV64 processor
config ARCH_CHIP_HPM6000
bool "Hpmicro HPM6000"
select ARCH_RV32
select ARCH_RV_ISA_M
select ARCH_RV_ISA_A
select ARCH_RV_ISA_C
select ONESHOT
select ALARM_ARCH
---help---
Hpmicro HPM6000 processor (D45 RISC-V Core with MAC extensions).
config ARCH_CHIP_HPM6750
bool "Hpmicro HPM6750"
select ARCH_RV32
select ARCH_RV_ISA_M
select ARCH_RV_ISA_A
select ARCH_RV_ISA_C
select ONESHOT
select ALARM_ARCH
---help---
Hpmicro HPM6750 processor (D45 RISC-V Core with MAC extensions).
config ARCH_CHIP_JH7110
bool "StarFive JH7110"
select ARCH_RV64
select ARCH_RV_ISA_M
select ARCH_RV_ISA_A
select ARCH_RV_ISA_C
select ARCH_HAVE_FPU
select ARCH_HAVE_DPFPU
select ARCH_HAVE_MULTICPU
select ARCH_HAVE_MPU
select ARCH_MMU_TYPE_SV39
select ARCH_HAVE_ADDRENV
select ARCH_NEED_ADDRENV_MAPPING
select ARCH_HAVE_S_MODE
select ONESHOT
select ALARM_ARCH
---help---
StarFive JH7110 SoC.
config ARCH_CHIP_BL808
bool "Bouffalo Lab BL808"
select ARCH_RV64
select ARCH_RV_ISA_M
select ARCH_RV_ISA_A
select ARCH_RV_ISA_C
select ARCH_HAVE_FPU
select ARCH_HAVE_DPFPU
select ARCH_HAVE_MULTICPU
select ARCH_HAVE_MPU
select ARCH_MMU_TYPE_SV39
select ARCH_HAVE_ADDRENV
select ARCH_NEED_ADDRENV_MAPPING
select ARCH_HAVE_S_MODE
select ONESHOT
select ALARM_ARCH
---help---
Bouffalo Lab BL808 SoC.
config ARCH_CHIP_K230
bool "Kendryte K230"
select ARCH_RV64
select ARCH_RV_ISA_M
select ARCH_RV_ISA_A
select ARCH_RV_ISA_C
select ARCH_HAVE_FPU
select ARCH_HAVE_DPFPU
select ARCH_HAVE_MISALIGN_EXCEPTION
select ARCH_HAVE_MPU
select ARCH_HAVE_ADDRENV
select ARCH_HAVE_RESET
select ARCH_HAVE_S_MODE
select ARCH_HAVE_ELF_EXECUTABLE
select ARCH_MMU_TYPE_SV39
select ARCH_NEED_ADDRENV_MAPPING
select NUTTSBI_LATE_INIT if NUTTSBI
select ONESHOT
select ALARM_ARCH
---help---
Kendryte K230 SoC (RV64GCV and RV64GCVX C908 cores).
config ARCH_CHIP_RISCV_CUSTOM
bool "Custom RISC-V chip"
select ARCH_CHIP_CUSTOM
---help---
Select this option if there is no directory for the chip under arch/risc-v/src/.
endchoice # RISC-V chip selection
config ARCH_RV32
bool
default n
config ARCH_RV64
bool
default n
select LIBC_ARCH_ELF_64BIT if LIBC_ARCH_ELF
config ARCH_RV_ISA_M
bool
default n
config ARCH_RV_ISA_A
bool
default n
select ARCH_HAVE_TESTSET
config ARCH_RV_ISA_C
bool
default n
config ARCH_RV_ISA_V
bool
default n
depends on ARCH_FPU
if ARCH_RV_ISA_V
config ARCH_RV_VECTOR_BYTE_LENGTH
int "Vector Register Length in bytes"
default 32
---help---
Predefined vector register length. If CSR vlenb is greater than the
current reserved value, appropriate memory will be allocated to
save/restore the vector registers.
The XLEN-bit-wide read-only CSR vlenb holds the value VLEN/8, i.e.,
the vector register length in bytes. The value in vlenb is a
design-time constant in any implementation. Without this CSR, several
instructions are needed to calculate VLEN in bytes. The code has to
disturb current vl and vtype settings which require them to be saved and restored.
endif
config ARCH_RV_ISA_ZICSR_ZIFENCEI
bool
default y
---help---
https://sourceware.org/git/?p=binutils-gdb.git;a=commit;h=aed44286efa8ae8717a77d94b51ac3614e2ca6dc
https://gcc.gnu.org/git/?p=gcc.git;a=commit;h=98416dbb0a62579d4a7a4a76bab51b5b52fec2cd
GCC-12.1.0 bumped the default ISA spec to the newer 20191213 version,
which moves some instructions from the I extension to the Zicsr and
Zifencei extensions. This requires explicitly specifying Zicsr and
Zifencei when GCC >= 12.1.0. To make life easier, and avoid forcing
toolchains that default to a newer ISA spec to version 2.2. For
clang < 17 or GCC < 11.3.0, for which this is not possible or need
special treatment.
config ARCH_RV_EXPERIMENTAL_EXTENSIONS
string "LLVM RISC-V Experimental Extensions"
default ""
depends on RISCV_TOOLCHAIN_CLANG
---help---
This option allows the platform to enable experimental extensions,
LLVM supports (to various degrees) a number of experimental extensions.
All experimental extensions have experimental- as a prefix. There is
explicitly no compatibility promised between versions of the toolchain,
and regular users are strongly advised not to make use of experimental
extensions before they reach ratification.
config ARCH_RV_ISA_VENDOR_EXTENSIONS
string "Vendor Custom RISC-V Instruction Set Architecture Extensions"
default ""
---help---
This option allows the platform to enable some vendor-customized ISA extensions,
E.g OpenHW, SiFive, T-Head.
SiFive Intelligence Extensions:
SiFive Vector Coprocessor Interface(VCIX): xsfvcp
SiFive FP32-to-int8 Ranged Clip Instructions: Xsfvfnrclipxfqf
SiFive Matrix Multiply Accumulate Instructions: Xsfvfwmaccqqq
SiFive Int8 Matrix Multiplication Instructions: XSFvqmaccqoq
Command Line:
xsfvcp0p1_xsfvfnrclipxfqf0p1_xsfvfwmaccqqq0p1_xsfvqmaccqoq0p1
config ARCH_RV_MMIO_BITS
int
# special cases
default 32 if ARCH_CHIP_K230
# general fallbacks
default 32 if ARCH_RV32
default 64 if ARCH_RV64
config ARCH_FAMILY
string
default "rv32" if ARCH_RV32
default "rv64" if ARCH_RV64
config ARCH_CHIP
string
default "fe310" if ARCH_CHIP_FE310
default "k210" if ARCH_CHIP_K210
default "litex" if ARCH_CHIP_LITEX
default "bl602" if ARCH_CHIP_BL602
default "esp32c3-legacy" if ARCH_CHIP_ESP32C3
default "esp32c3" if ARCH_CHIP_ESP32C3_GENERIC
default "esp32c6" if ARCH_CHIP_ESP32C6
default "esp32h2" if ARCH_CHIP_ESP32H2
default "c906" if ARCH_CHIP_C906
default "mpfs" if ARCH_CHIP_MPFS
default "rv32m1" if ARCH_CHIP_RV32M1
default "qemu-rv" if ARCH_CHIP_QEMU_RV
default "hpm6000" if ARCH_CHIP_HPM6000
default "hpm6750" if ARCH_CHIP_HPM6750
default "jh7110" if ARCH_CHIP_JH7110
default "bl808" if ARCH_CHIP_BL808
default "k230" if ARCH_CHIP_K230
config ARCH_RISCV_INTXCPT_EXTENSIONS
bool "RISC-V Integer Context Extensions"
default n
depends on RV32M1_OPENISA_TOOLCHAIN
---help---
RISC-V could be customized with extensions. Some Integer Context
Registers have to be saved and restored when Contexts switch.
if ARCH_RISCV_INTXCPT_EXTENSIONS
config ARCH_RISCV_INTXCPT_EXTREGS
int "Number of Extral RISC-V Integer Context Registers"
default 0
endif
config ARCH_MMU_TYPE_SV39
bool
default n
select ARCH_HAVE_MMU
config ARCH_MMU_TYPE_SV32
bool
default n
select ARCH_HAVE_MMU
config ARCH_HAVE_S_MODE
bool
default n
config ARCH_HAVE_MISALIGN_EXCEPTION
bool
default n
---help---
The chip will raise a exception while misaligned memory access.
config RISCV_MISALIGNED_HANDLER
bool "Software misaligned memory access handler"
depends on ARCH_HAVE_MISALIGN_EXCEPTION
default y
config RISCV_PERCPU_SCRATCH
bool "Enable Scratch-based Per-CPU storage"
default n
---help---
In some special chipsets, multiple CPUs may be bundled in one hardware
thread cluster, which results in hartid and cpuindex not being exactly
the same.
This option will enable Scratch-based Per-CPU storage to distinguish
the real cpu index.
# Option to run NuttX in supervisor mode. This is obviously not usable in
# flat mode, is questionable in protected mode, but is mandatory in kernel
# mode.
#
# Kernel mode requires this as M-mode uses flat addressing and the kernel
# memory must be mapped in order to share memory between the kernel and
# different user tasks which reside in virtual memory.
#
# Note that S-mode requires a companion software (SBI)
#
config ARCH_USE_S_MODE
bool "Run the NuttX kernel in S-mode"
default n
depends on ARCH_HAVE_S_MODE && BUILD_KERNEL && ARCH_USE_MMU
select RISCV_PERCPU_SCRATCH
---help---
Most of the RISC-V implementations run in M-mode (flat addressing)
and/or U-mode (in case of separate kernel-/userspaces). This provides
an option to run the kernel in S-mode, if the target supports it.
choice
prompt "Toolchain Selection"
default RISCV_TOOLCHAIN_GNU_RV64
config RISCV_TOOLCHAIN_GNU_RV64
bool "Generic GNU RV64 toolchain"
select ARCH_TOOLCHAIN_GNU
---help---
This option should work for any modern GNU toolchain (GCC 5.2 or newer)
configured for riscv64-unknown-elf.
config RISCV_TOOLCHAIN_GNU_RV32
bool "Generic GNU RV32 toolchain"
select ARCH_TOOLCHAIN_GNU
---help---
This option should work for any modern GNU toolchain (GCC 5.2 or newer)
configured for riscv32-unknown-elf.
config RISCV_TOOLCHAIN_CLANG
bool "LLVM Clang toolchain"
select ARCH_TOOLCHAIN_CLANG
endchoice # Toolchain Selection
config RISCV_SEMIHOSTING_HOSTFS
bool "Semihosting HostFS"
depends on FS_HOSTFS
---help---
Mount HostFS through semihosting.
This doesn't support some directory operations like readdir because
of the limitations of semihosting mechanism.
if RISCV_SEMIHOSTING_HOSTFS
config RISCV_SEMIHOSTING_HOSTFS_CACHE_COHERENCE
bool "Cache coherence in semihosting hostfs"
depends on ARCH_DCACHE
---help---
Flush & Invalidte cache before & after bkpt instruction.
endif # RISCV_SEMIHOSTING_HOSTFS
if ARCH_CHIP_LITEX
choice
prompt "LITEX Core Selection"
default LITEX_CORE_VEXRISCV
config LITEX_CORE_VEXRISCV
bool "vexriscv core"
config LITEX_CORE_VEXRISCV_SMP
bool "vexriscv_smp core"
select ARCH_HAVE_MPU
select ARCH_RV_ISA_C
select ARCH_MMU_TYPE_SV32
select ARCH_HAVE_ADDRENV
select ARCH_NEED_ADDRENV_MAPPING
select ARCH_HAVE_S_MODE
select ARCH_HAVE_ELF_EXECUTABLE
endchoice # LITEX Core Selection
endif # ARCH_CHIP_LITEX
source "arch/risc-v/src/opensbi/Kconfig"
source "arch/risc-v/src/nuttsbi/Kconfig"
if ARCH_CHIP_FE310
source "arch/risc-v/src/fe310/Kconfig"
endif
if ARCH_CHIP_K210
source "arch/risc-v/src/k210/Kconfig"
endif
if ARCH_CHIP_LITEX
source "arch/risc-v/src/litex/Kconfig"
endif
if ARCH_CHIP_BL602
source "arch/risc-v/src/bl602/Kconfig"
endif
if ARCH_CHIP_ESP32C3
source "arch/risc-v/src/esp32c3-legacy/Kconfig"
endif
if ARCH_CHIP_ESP32C3_GENERIC
source "arch/risc-v/src/esp32c3/Kconfig"
endif
if ARCH_CHIP_ESP32C6
source "arch/risc-v/src/esp32c6/Kconfig"
endif
if ARCH_CHIP_ESP32H2
source "arch/risc-v/src/esp32h2/Kconfig"
endif
if ARCH_CHIP_C906
source "arch/risc-v/src/c906/Kconfig"
endif
if ARCH_CHIP_MPFS
source "arch/risc-v/src/mpfs/Kconfig"
endif
if ARCH_CHIP_RV32M1
source "arch/risc-v/src/rv32m1/Kconfig"
endif
if ARCH_CHIP_QEMU_RV
source "arch/risc-v/src/qemu-rv/Kconfig"
endif
if ARCH_CHIP_HPM6000
source "arch/risc-v/src/hpm6000/Kconfig"
endif
if ARCH_CHIP_HPM6750
source "arch/risc-v/src/hpm6750/Kconfig"
endif
if ARCH_CHIP_JH7110
source "arch/risc-v/src/jh7110/Kconfig"
endif
if ARCH_CHIP_BL808
source "arch/risc-v/src/bl808/Kconfig"
endif
if ARCH_CHIP_K230
source "arch/risc-v/src/k230/Kconfig"
endif
endif # ARCH_RISCV