On Mon, Aug 17, 2020 at 4:50 PM <frank.ch...@sifive.com> wrote:
> From: Frank Chang <frank.ch...@sifive.com> > > This patchset implements the vector extension v1.0 for RISC-V on QEMU. > > This patchset is sent as RFC because RVV v1.0 is still in draft state. > v2 patchset was sent for RVV v0.9 and bumped to RVV v1.0 since v3 patchset. > > The port is available here: > https://github.com/sifive/qemu/tree/rvv-1.0-upstream-v4 > > You can change the cpu argument: vext_spec to v1.0 (i.e. vext_spec=v1.0) > to run with RVV v1.0 instructions. > > Note: This patchset depends on two other patchsets listed in Based-on > section below so it might not able to be built unless those two > patchsets are applied. > > Changelog: > > v4 > * remove explicit float flmul variable in DisasContext. > * replace floating-point calculations with shift operations to > improve performance. > * relax RV_VLEN_MAX to 512-bits. > > v3 > * apply nan-box helpers from Richard Henderson. > * remove fp16 api changes as they are sent independently in another > pathcset by Chih-Min Chao. > * remove all tail elements clear functions as tail elements can > retain unchanged for either VTA set to undisturbed or agnostic. > * add fp16 nan-box check generator function. > * add floating-point rounding mode enum. > * replace flmul arithmetic with shifts to avoid floating-point > conversions. > * add Zvqmac extension. > * replace gdbstub vector register xml files with dynamic generator. > * bumped to RVV v1.0. > * RVV v1.0 related changes: > * add vl<nf>re<eew>.v and vs<nf>r.v vector whole register > load/store instructions > * add vrgatherei16 instruction. > * rearranged bits in vtype to make vlmul bits into a contiguous > field. > > v2 > * drop v0.7.1 support. > * replace invisible return check macros with functions. > * move mark_vs_dirty() to translators. > * add SSTATUS_VS flag for s-mode. > * nan-box scalar fp register for floating-point operations. > * add gdbstub files for vector registers to allow system-mode > debugging with GDB. > > Based-on: <20200724002807.441147-1-richard.hender...@linaro.org/> > Based-on: <1596102747-20226-1-git-send-email-chihmin.c...@sifive.com/> > > Frank Chang (62): > target/riscv: drop vector 0.7.1 and add 1.0 support > target/riscv: Use FIELD_EX32() to extract wd field > target/riscv: rvv-1.0: introduce writable misa.v field > target/riscv: rvv-1.0: remove rvv related codes from fcsr registers > target/riscv: rvv-1.0: check MSTATUS_VS when accessing vector csr > registers > target/riscv: rvv-1.0: remove MLEN calculations > target/riscv: rvv-1.0: add fractional LMUL > target/riscv: rvv-1.0: add VMA and VTA > target/riscv: rvv-1.0: update check functions > target/riscv: introduce more imm value modes in translator functions > target/riscv: rvv:1.0: add translation-time nan-box helper function > target/riscv: rvv-1.0: configure instructions > target/riscv: rvv-1.0: stride load and store instructions > target/riscv: rvv-1.0: index load and store instructions > target/riscv: rvv-1.0: fix address index overflow bug of indexed > load/store insns > target/riscv: rvv-1.0: fault-only-first unit stride load > target/riscv: rvv-1.0: amo operations > target/riscv: rvv-1.0: load/store whole register instructions > target/riscv: rvv-1.0: update vext_max_elems() for load/store insns > target/riscv: rvv-1.0: take fractional LMUL into vector max elements > calculation > target/riscv: rvv-1.0: floating-point square-root instruction > target/riscv: rvv-1.0: floating-point classify instructions > target/riscv: rvv-1.0: mask population count instruction > target/riscv: rvv-1.0: find-first-set mask bit instruction > target/riscv: rvv-1.0: set-X-first mask bit instructions > target/riscv: rvv-1.0: iota instruction > target/riscv: rvv-1.0: element index instruction > target/riscv: rvv-1.0: allow load element with sign-extended > target/riscv: rvv-1.0: register gather instructions > target/riscv: rvv-1.0: integer scalar move instructions > target/riscv: rvv-1.0: floating-point move instruction > target/riscv: rvv-1.0: floating-point scalar move instructions > target/riscv: rvv-1.0: whole register move instructions > target/riscv: rvv-1.0: integer extension instructions > target/riscv: rvv-1.0: single-width averaging add and subtract > instructions > target/riscv: rvv-1.0: single-width bit shift instructions > target/riscv: rvv-1.0: integer add-with-carry/subtract-with-borrow > target/riscv: rvv-1.0: narrowing integer right shift instructions > target/riscv: rvv-1.0: widening integer multiply-add instructions > target/riscv: rvv-1.0: add Zvqmac extension > target/riscv: rvv-1.0: quad-widening integer multiply-add instructions > target/riscv: rvv-1.0: single-width saturating add and subtract > instructions > target/riscv: rvv-1.0: integer comparison instructions > target/riscv: use softfloat lib float16 comparison functions > target/riscv: rvv-1.0: floating-point compare instructions > target/riscv: rvv-1.0: mask-register logical instructions > target/riscv: rvv-1.0: slide instructions > target/riscv: rvv-1.0: floating-point slide instructions > target/riscv: rvv-1.0: narrowing fixed-point clip instructions > target/riscv: rvv-1.0: single-width floating-point reduction > target/riscv: rvv-1.0: widening floating-point reduction instructions > target/riscv: rvv-1.0: single-width scaling shift instructions > target/riscv: rvv-1.0: remove widening saturating scaled multiply-add > target/riscv: rvv-1.0: remove vmford.vv and vmford.vf > target/riscv: rvv-1.0: remove integer extract instruction > target/riscv: rvv-1.0: floating-point min/max instructions > target/riscv: introduce floating-point rounding mode enum > target/riscv: rvv-1.0: floating-point/integer type-convert > instructions > target/riscv: rvv-1.0: widening floating-point/integer type-convert > target/riscv: add "set round to odd" rounding mode helper function > target/riscv: rvv-1.0: narrowing floating-point/integer type-convert > target/riscv: rvv-1.0: relax RV_VLEN_MAX to 512-bits > > Greentime Hu (2): > target/riscv: rvv-1.0: add vlenb register > target/riscv: gdb: support vector registers for rv32 > > Hsiangkai Wang (2): > target/riscv: gdb: modify gdb csr xml file to align with csr register > map > target/riscv: gdb: support vector registers for rv64 > > LIU Zhiwei (4): > target/riscv: rvv-1.0: add mstatus VS field > target/riscv: rvv-1.0: add sstatus VS field > target/riscv: rvv-1.0: add translation-time vector context status > target/riscv: rvv-1.0: add vcsr register > > gdb-xml/riscv-32bit-csr.xml | 18 +- > gdb-xml/riscv-64bit-csr.xml | 18 +- > target/riscv/cpu.c | 12 +- > target/riscv/cpu.h | 97 +- > target/riscv/cpu_bits.h | 10 + > target/riscv/cpu_helper.c | 16 +- > target/riscv/csr.c | 73 +- > target/riscv/fpu_helper.c | 17 +- > target/riscv/gdbstub.c | 126 +- > target/riscv/helper.h | 523 ++-- > target/riscv/insn32-64.decode | 18 +- > target/riscv/insn32.decode | 295 +- > target/riscv/insn_trans/trans_rvv.inc.c | 2366 ++++++++++------ > target/riscv/internals.h | 19 +- > target/riscv/translate.c | 68 +- > target/riscv/vector_helper.c | 3269 +++++++++++------------ > 16 files changed, 4051 insertions(+), 2894 deletions(-) > > -- > 2.17.1 > > ping~
