Hi all,
So far this series has implemented general support for initializing CPU,
exceptions, kernel booting, CPU and timer drivers, QEMU LoongArch virt
machine support and UEFI standard compliant EFI booting support.
LoongArch had defined 3 ISA variants, LA64, LA32 and LA32R (Reduced,
intended for MCUs and education purpose). This is a little-endian only
architecture. Only LA64 is implemented in this series since the hardware
is more widely available, and I'll work on 32bit support later.
This series had passed checkpatch with exceptions on some false alarms
and headers imported elsewhere. I've tested virtio devices, direct
kernel booting, efistub kernel booting, grub, and hello/selftests EFI
app.
LoongArch CI depends on some already-merged dockerfile[2] and buildman[3]
changes to run.
Toolchain can be found at [4] or using upstream one, to build
make qemu-loongarch64_defconfig
make
To run in QEMU:
qemu-system-loongarch64 -nographic -machine virt -bios u-boot.bin
TODOs on the architecture & board:
- loongson,ls7a-rtc driver
- The only device on QEMU board haven't been supported yet
- LoongArch sandbox host support
- TLB enablement
- This is required for real CPU to utilize caches
- Possibly EFI-APP support for real machine
Thanks for your time and review!
Link to v2: https://lore.kernel.org/u-boot/[email protected]/
Link to v1:
https://lore.kernel.org/u-boot/[email protected]/
[1]:
https://lore.kernel.org/u-boot/[email protected]/
[2]: https://lore.kernel.org/u-boot/[email protected]/
[3]: https://lore.kernel.org/u-boot/[email protected]/
[4]:
https://mirrors.edge.kernel.org/pub/tools/crosstool/files/bin/x86_64/14.2.0/x86_64-gcc-14.2.0-nolibc-loongarch64-linux.tar.gz
Jiaxun Yang (16):
lib: fdtdec: Handle multiple memory nodes
linux/io.h: Use map_physmem to implement ioremap
image: Take entry point as an output of setup_booti
elf: Define LoongArch bits
image: Define IH_ARCH_LOONGARCH
LoongArch: skeleton and headers
LoongArch: lib: General routines
LoongArch: CPU assembly routines
LoongArch: Exception handling
LoongArch: Boot Image bits
LoongArch: Generic platform type
cpu: Add loongarch_cpu driver
timer: Add loongarch_timer driver
board: emulation: Add qemu-loongarch
efi: LoongArch: Define LoongArch bits everywhere
efi: LoongArch: Implement everything
Yao Zi (3):
doc: arch: Add documentation for LoongArch
MAINTAINERS: Add entry for LoongArch
CI: Wire up qemu-loongarch64
.azure-pipelines.yml | 11 +-
.gitlab-ci.yml | 6 +
MAINTAINERS | 11 +
Makefile | 2 +
arch/Kconfig | 16 +
arch/arm/lib/image.c | 3 +-
arch/loongarch/Kconfig | 67 +
arch/loongarch/Makefile | 21 +
arch/loongarch/config.mk | 27 +
arch/loongarch/cpu/Makefile | 9 +
arch/loongarch/cpu/cpu.c | 17 +
arch/loongarch/cpu/generic/Kconfig | 13 +
arch/loongarch/cpu/generic/Makefile | 7 +
arch/loongarch/cpu/generic/cpu.c | 22 +
arch/loongarch/cpu/generic/dram.c | 16 +
arch/loongarch/cpu/genex.S | 21 +
arch/loongarch/cpu/smp_secondary.S | 55 +
arch/loongarch/cpu/start.S | 168 ++
arch/loongarch/cpu/u-boot.lds | 85 +
arch/loongarch/dts/Makefile | 6 +
arch/loongarch/dts/qemu-loongarch64.dts | 9 +
arch/loongarch/include/asm/acpi_table.h | 8 +
arch/loongarch/include/asm/addrspace.h | 86 +
.../include/asm/arch-generic/entry-init.h | 15 +
arch/loongarch/include/asm/asm.h | 186 +++
arch/loongarch/include/asm/atomic.h | 12 +
arch/loongarch/include/asm/barrier.h | 138 ++
arch/loongarch/include/asm/bitops.h | 156 ++
arch/loongarch/include/asm/byteorder.h | 22 +
arch/loongarch/include/asm/cache.h | 34 +
arch/loongarch/include/asm/config.h | 11 +
arch/loongarch/include/asm/cpu.h | 123 ++
arch/loongarch/include/asm/dma-mapping.h | 27 +
arch/loongarch/include/asm/global_data.h | 50 +
arch/loongarch/include/asm/gpio.h | 11 +
arch/loongarch/include/asm/io.h | 399 +++++
arch/loongarch/include/asm/linkage.h | 11 +
arch/loongarch/include/asm/loongarch.h | 1467 +++++++++++++++++
arch/loongarch/include/asm/posix_types.h | 87 +
arch/loongarch/include/asm/processor.h | 11 +
arch/loongarch/include/asm/ptrace.h | 33 +
arch/loongarch/include/asm/regdef.h | 42 +
arch/loongarch/include/asm/sections.h | 8 +
arch/loongarch/include/asm/setjmp.h | 20 +
arch/loongarch/include/asm/spl.h | 11 +
arch/loongarch/include/asm/stackframe.h | 175 ++
arch/loongarch/include/asm/string.h | 11 +
arch/loongarch/include/asm/system.h | 72 +
arch/loongarch/include/asm/types.h | 37 +
arch/loongarch/include/asm/u-boot-loongarch.h | 23 +
arch/loongarch/include/asm/u-boot.h | 30 +
arch/loongarch/include/asm/unaligned.h | 11 +
arch/loongarch/lib/Makefile | 26 +
arch/loongarch/lib/asm-offsets.c | 66 +
arch/loongarch/lib/boot.c | 14 +
arch/loongarch/lib/bootm.c | 130 ++
arch/loongarch/lib/cache.c | 243 +++
arch/loongarch/lib/crt0_loongarch_efi.S | 182 ++
arch/loongarch/lib/elf_loongarch_efi.lds | 76 +
arch/loongarch/lib/image.c | 77 +
arch/loongarch/lib/interrupts.c | 192 +++
arch/loongarch/lib/reloc_loongarch_efi.c | 102 ++
arch/loongarch/lib/reset.c | 14 +
arch/loongarch/lib/setjmp.S | 52 +
arch/riscv/lib/image.c | 4 +-
arch/sandbox/lib/bootm.c | 2 +-
board/emulation/qemu-loongarch/Kconfig | 68 +
board/emulation/qemu-loongarch/MAINTAINERS | 9 +
board/emulation/qemu-loongarch/Makefile | 6 +
.../emulation/qemu-loongarch/qemu-loongarch.c | 67 +
.../qemu-loongarch/qemu-loongarch.env | 5 +
boot/bootm.c | 5 +-
boot/image.c | 1 +
cmd/Kconfig | 2 +-
cmd/booti.c | 5 +-
common/spl/spl.c | 9 +-
configs/qemu-loongarch64_defconfig | 36 +
doc/arch/index.rst | 1 +
doc/arch/loongarch.rst | 30 +
doc/board/emulation/index.rst | 1 +
doc/board/emulation/qemu-loongarch.rst | 39 +
drivers/cpu/Kconfig | 6 +
drivers/cpu/Makefile | 1 +
drivers/cpu/loongarch_cpu.c | 142 ++
drivers/timer/Kconfig | 8 +
drivers/timer/Makefile | 1 +
drivers/timer/loongarch_timer.c | 132 ++
include/asm-generic/global_data.h | 2 +-
include/asm-generic/pe.h | 2 +
include/config_distro_bootcmd.h | 5 +
include/configs/qemu-loongarch.h | 17 +
include/elf.h | 8 +-
include/host_arch.h | 2 +
include/image.h | 8 +-
include/linux/io.h | 3 +-
include/pe.h | 2 +
lib/efi_loader/Kconfig | 2 +-
lib/efi_loader/efi_helper.c | 7 +
lib/efi_loader/efi_image_loader.c | 38 +
lib/efi_loader/efi_runtime.c | 4 +
.../efi_selftest_miniapp_exception.c | 3 +
lib/fdtdec.c | 127 +-
102 files changed, 5826 insertions(+), 77 deletions(-)
create mode 100644 arch/loongarch/Kconfig
create mode 100644 arch/loongarch/Makefile
create mode 100644 arch/loongarch/config.mk
create mode 100644 arch/loongarch/cpu/Makefile
create mode 100644 arch/loongarch/cpu/cpu.c
create mode 100644 arch/loongarch/cpu/generic/Kconfig
create mode 100644 arch/loongarch/cpu/generic/Makefile
create mode 100644 arch/loongarch/cpu/generic/cpu.c
create mode 100644 arch/loongarch/cpu/generic/dram.c
create mode 100644 arch/loongarch/cpu/genex.S
create mode 100644 arch/loongarch/cpu/smp_secondary.S
create mode 100644 arch/loongarch/cpu/start.S
create mode 100644 arch/loongarch/cpu/u-boot.lds
create mode 100644 arch/loongarch/dts/Makefile
create mode 100644 arch/loongarch/dts/qemu-loongarch64.dts
create mode 100644 arch/loongarch/include/asm/acpi_table.h
create mode 100644 arch/loongarch/include/asm/addrspace.h
create mode 100644 arch/loongarch/include/asm/arch-generic/entry-init.h
create mode 100644 arch/loongarch/include/asm/asm.h
create mode 100644 arch/loongarch/include/asm/atomic.h
create mode 100644 arch/loongarch/include/asm/barrier.h
create mode 100644 arch/loongarch/include/asm/bitops.h
create mode 100644 arch/loongarch/include/asm/byteorder.h
create mode 100644 arch/loongarch/include/asm/cache.h
create mode 100644 arch/loongarch/include/asm/config.h
create mode 100644 arch/loongarch/include/asm/cpu.h
create mode 100644 arch/loongarch/include/asm/dma-mapping.h
create mode 100644 arch/loongarch/include/asm/global_data.h
create mode 100644 arch/loongarch/include/asm/gpio.h
create mode 100644 arch/loongarch/include/asm/io.h
create mode 100644 arch/loongarch/include/asm/linkage.h
create mode 100644 arch/loongarch/include/asm/loongarch.h
create mode 100644 arch/loongarch/include/asm/posix_types.h
create mode 100644 arch/loongarch/include/asm/processor.h
create mode 100644 arch/loongarch/include/asm/ptrace.h
create mode 100644 arch/loongarch/include/asm/regdef.h
create mode 100644 arch/loongarch/include/asm/sections.h
create mode 100644 arch/loongarch/include/asm/setjmp.h
create mode 100644 arch/loongarch/include/asm/spl.h
create mode 100644 arch/loongarch/include/asm/stackframe.h
create mode 100644 arch/loongarch/include/asm/string.h
create mode 100644 arch/loongarch/include/asm/system.h
create mode 100644 arch/loongarch/include/asm/types.h
create mode 100644 arch/loongarch/include/asm/u-boot-loongarch.h
create mode 100644 arch/loongarch/include/asm/u-boot.h
create mode 100644 arch/loongarch/include/asm/unaligned.h
create mode 100644 arch/loongarch/lib/Makefile
create mode 100644 arch/loongarch/lib/asm-offsets.c
create mode 100644 arch/loongarch/lib/boot.c
create mode 100644 arch/loongarch/lib/bootm.c
create mode 100644 arch/loongarch/lib/cache.c
create mode 100644 arch/loongarch/lib/crt0_loongarch_efi.S
create mode 100644 arch/loongarch/lib/elf_loongarch_efi.lds
create mode 100644 arch/loongarch/lib/image.c
create mode 100644 arch/loongarch/lib/interrupts.c
create mode 100644 arch/loongarch/lib/reloc_loongarch_efi.c
create mode 100644 arch/loongarch/lib/reset.c
create mode 100644 arch/loongarch/lib/setjmp.S
create mode 100644 board/emulation/qemu-loongarch/Kconfig
create mode 100644 board/emulation/qemu-loongarch/MAINTAINERS
create mode 100644 board/emulation/qemu-loongarch/Makefile
create mode 100644 board/emulation/qemu-loongarch/qemu-loongarch.c
create mode 100644 board/emulation/qemu-loongarch/qemu-loongarch.env
create mode 100644 configs/qemu-loongarch64_defconfig
create mode 100644 doc/arch/loongarch.rst
create mode 100644 doc/board/emulation/qemu-loongarch.rst
create mode 100644 drivers/cpu/loongarch_cpu.c
create mode 100644 drivers/timer/loongarch_timer.c
create mode 100644 include/configs/qemu-loongarch.h
base-commit: 93d858da82ea0fa551af9aa6d50ef57fa94c5c49
--
2.55.0
