уто, 2. јун 2020. у 04:38 Huacai Chen <zltjiang...@gmail.com> је написао/ла: > > Loongson-3 CPU family include Loongson-3A R1/R2/R3/R4 and Loongson-3B > R1/R2.
Hi, Huacai, The documents you kindly provided contain some valuable info on Loongson-3A R1/R2/R3/R4 and Loongson-3B R1/R2. However, I couldn't find detailed instruction-by-instruction specifications. In fact, I don't need all the details right now, but some form of overview of instructions sets of Loongson-3A R1/R2/R3/R4 and Loongson-3B R1/R2. Could you please provide textual description (one of two paragraph) of supported instructions for each of these models: * Loongson-3A R1 * Loongson-3A R2 * Loongson-3A R3 * Loongson-3A R4 * Loongson-3B R1 * Loongson-3B R2 (what is the base instructuin set; the difference to the previous model; what SIMD extension (LMI/MSA) is supported other specifics around supported instructions) Based on your answer I may bring forward some suggestions on the improvement of v4 of this series. Truly yours, Aleksandar > 1, "Loongson-3A1000" CPU which is corresponding to Loongson-3A R1. It is > suitable for TCG because Loongson-3A R1 has fewest ASE. > 2, "Loongson-3A4000" CPU which is corresponding to Loongson-3A R4. It is > suitable for KVM because Loongson-3A R4 has the VZ ASE. > > Loongson-3 lacks English documents. I've tried to translated them with > translate.google.com, and the machine translated documents (together > with their original Chinese versions) are available here. > > Loongson-3A R1 (Loongson-3A1000) > User Manual Part 1: > http://ftp.godson.ac.cn/lemote/3A1000_p1.pdf > http://ftp.godson.ac.cn/lemote/Loongson3A1000_processor_user_manual_P1.pdf > (Chinese Version) > User Manual Part 2: > http://ftp.godson.ac.cn/lemote/3A1000_p2.pdf > http://ftp.godson.ac.cn/lemote/Loongson3A1000_processor_user_manual_P2.pdf > (Chinese Version) > > Loongson-3A R2 (Loongson-3A2000) > User Manual Part 1: > http://ftp.godson.ac.cn/lemote/3A2000_p1.pdf > http://ftp.godson.ac.cn/lemote/Loongson3A2000_user1.pdf (Chinese Version) > User Manual Part 2: > http://ftp.godson.ac.cn/lemote/3A2000_p2.pdf > http://ftp.godson.ac.cn/lemote/Loongson3A2000_user2.pdf (Chinese Version) > > Loongson-3A R3 (Loongson-3A3000) > User Manual Part 1: > http://ftp.godson.ac.cn/lemote/3A3000_p1.pdf > http://ftp.godson.ac.cn/lemote/Loongson3A3000_3B3000usermanual1.pdf (Chinese > Version) > User Manual Part 2: > http://ftp.godson.ac.cn/lemote/3A3000_p2.pdf > http://ftp.godson.ac.cn/lemote/Loongson3A3000_3B3000usermanual2.pdf (Chinese > Version) > > Loongson-3A R4 (Loongson-3A4000) > User Manual Part 1: > http://ftp.godson.ac.cn/lemote/3A4000_p1.pdf > http://ftp.godson.ac.cn/lemote/3A4000user.pdf (Chinese Version) > User Manual Part 2: > I'm sorry that it is unavailable now. > > We are preparing to add QEMU's Loongson-3 support. MIPS VZ extension is > fully supported in Loongson-3A R4+, so we at first add QEMU/KVM support > in this series. And the next series will add QEMU/TCG support (it will > emulate Loongson-3A R1). > > We already have a full functional Linux kernel (based on Linux-5.4.x LTS > but not upstream yet) here: > > https://github.com/chenhuacai/linux > > How to use QEMU/Loongson-3? > 1, Download kernel source from the above URL; > 2, Build a kernel with arch/mips/configs/loongson3_{def,hpc}config; > 3, Boot a Loongson-3A4000 host with this kernel; > 4, Build QEMU-5.0.0 with this patchset; > 5, modprobe kvm; > 6, Use QEMU with TCG (available in future): > qemu-system-mips64el -M loongson3,accel=tcg -cpu Loongson-3A1000 > -kernel <path_to_kernel> -append ... > Use QEMU with KVM (available at present): > qemu-system-mips64el -M loongson3,accel=kvm -cpu Loongson-3A4000 > -kernel <path_to_kernel> -append ... > > The "-cpu" parameter can be omitted here and QEMU will use the correct > type for TCG/KVM automatically. > > V1 -> V2: > 1, Add a cover letter; > 2, Improve CPU definitions; > 3, Remove LS7A-related things (Use GPEX instead); > 4, Add a description of how to run QEMU/Loongson-3. > > V2 -> V3: > 1, Fix all possible checkpatch.pl errors and warnings. > > V3 -> V4: > 1, Sync code with upstream; > 2, Remove merged patches; > 3, Fix build failure without CONFIG_KVM; > 4, Add Reviewed-by: Aleksandar Markovic <aleksandar.qemu.de...@gmail.com>. > > Huacai Chen(4): > hw/mips: Implement the kvm_type() hook in MachineClass > target/mips: Add Loongson-3 CPU definition > hw/mips: Add Loongson-3 machine support (with KVM) > MAINTAINERS: Add myself as Loongson-3 maintainer > > Signed-off-by: Huacai Chen <che...@lemote.com> > --- > MAINTAINERS | 5 + > default-configs/mips64el-softmmu.mak | 1 + > hw/core/Makefile.objs | 2 +- > hw/core/null-machine.c | 4 + > hw/mips/Kconfig | 10 + > hw/mips/Makefile.objs | 3 +- > hw/mips/common.c | 42 ++ > hw/mips/loongson3.c | 901 > +++++++++++++++++++++++++++++++++++ > include/hw/mips/mips.h | 3 + > target/mips/cpu.h | 28 ++ > target/mips/internal.h | 2 + > target/mips/mips-defs.h | 7 +- > target/mips/translate.c | 2 + > target/mips/translate_init.inc.c | 86 ++++ > 14 files changed, 1092 insertions(+), 4 deletions(-) > create mode 100644 hw/mips/common.c > create mode 100644 hw/mips/loongson3.c > -- > 2.7.0
