On Tue, Dec 14, 2021 at 2:39 AM Frédéric Pétrot <frederic.pet...@univ-grenoble-alpes.fr> wrote: > > This series of patches provides partial 128-bit support for the riscv > target architecture, namely RVI and RVM, with minimal csr support. > > Thanks again for the reviews and advices.
I think this is all reviewed now. I was getting an error when trying to apply it though, do you mind rebasing on https://github.com/alistair23/qemu/tree/riscv-to-apply.next ? Alistair > > v7: > - code motion following reviews > - correction of a bug preventing riscv{32,64}-linux-user to compile > - sync with master > - Note that 'make check' fails for 5 qemu-iotests cases, namely > 040, 041, 127, 256, and 267, but they also fail with > qemu-system-riscv{32,64} from current master > > v6: > - support for '-cpu rv128' in qemu-system-riscv64 to handle 128-bit > executables (no more qemu-system-riscv128) > - remove useless (and buggy) big-endian support in lq/sq > > v5: > - split the memop define renaming and addition in two patches > - 128-bit div/rem operations using host-utils functions > - removed useless rv128 tests at various places > - refactoring the slt/bxx part so as to share the comparison part > - refactoring the 128-bit csr handling to share code more largely > Also forwarding writes to the 64-bit version when not 128-bit version > exists, as a vast majority of the csrs does not use the upper 64-bits > > v4: > - safer and cleaner access to the gpr upper part > - locals for load/store/div/rem helpers > - cleans out the 128-bit div/rem code > - corrects numerous bugs and performs optimizations on shifts and mults > - withdraws the change in page size and the vm schemes we introduced > > v3: > - v2 refactored following Richard's xl patch changes > > v2: > - load and store making use of new memop.h sizes > - use of the existing Int128 computations in helpers, and addition of > a few more operations there, in particular division and remainder > - refactoring of the calls to the code generation helpers > - split of the patch in smaller pieces > > v1: > - introducing support for rv128 for basic integer and M extension insns > > Frédéric Pétrot (18): > exec/memop: Adding signedness to quad definitions > exec/memop: Adding signed quad and octo defines > qemu/int128: addition of div/rem 128-bit operations > target/riscv: additional macros to check instruction support > target/riscv: separation of bitwise logic and arithmetic helpers > target/riscv: array for the 64 upper bits of 128-bit registers > target/riscv: setup everything for rv64 to support rv128 execution > target/riscv: moving some insns close to similar insns > target/riscv: accessors to registers upper part and 128-bit load/store > target/riscv: support for 128-bit bitwise instructions > target/riscv: support for 128-bit U-type instructions > target/riscv: support for 128-bit shift instructions > target/riscv: support for 128-bit arithmetic instructions > target/riscv: support for 128-bit M extension > target/riscv: adding high part of some csrs > target/riscv: helper functions to wrap calls to 128-bit csr insns > target/riscv: modification of the trans_csrxx for 128-bit support > target/riscv: actual functions to realize crs 128-bit insns > > include/disas/dis-asm.h | 1 + > include/exec/memop.h | 15 +- > include/qemu/int128.h | 27 + > include/tcg/tcg-op.h | 4 +- > target/arm/translate-a32.h | 4 +- > target/riscv/cpu.h | 22 + > target/riscv/cpu_bits.h | 3 + > target/riscv/helper.h | 9 + > target/riscv/insn16.decode | 27 +- > target/riscv/insn32.decode | 25 + > accel/tcg/cputlb.c | 30 +- > accel/tcg/user-exec.c | 8 +- > disas/riscv.c | 5 + > target/alpha/translate.c | 32 +- > target/arm/helper-a64.c | 8 +- > target/arm/translate-a64.c | 8 +- > target/arm/translate-neon.c | 6 +- > target/arm/translate-sve.c | 10 +- > target/arm/translate-vfp.c | 8 +- > target/arm/translate.c | 2 +- > target/cris/translate.c | 2 +- > target/hppa/translate.c | 4 +- > target/i386/tcg/mem_helper.c | 2 +- > target/i386/tcg/translate.c | 36 +- > target/m68k/op_helper.c | 2 +- > target/mips/tcg/translate.c | 58 +- > target/mips/tcg/tx79_translate.c | 8 +- > target/ppc/translate.c | 32 +- > target/riscv/cpu.c | 29 + > target/riscv/csr.c | 194 +++++- > target/riscv/gdbstub.c | 5 + > target/riscv/m128_helper.c | 109 +++ > target/riscv/machine.c | 22 + > target/riscv/op_helper.c | 44 ++ > target/riscv/translate.c | 252 ++++++- > target/s390x/tcg/mem_helper.c | 8 +- > target/s390x/tcg/translate.c | 8 +- > target/sh4/translate.c | 12 +- > target/sparc/translate.c | 36 +- > target/tricore/translate.c | 4 +- > target/xtensa/translate.c | 4 +- > tcg/tcg.c | 4 +- > tcg/tci.c | 16 +- > util/int128.c | 147 +++++ > accel/tcg/ldst_common.c.inc | 8 +- > target/mips/tcg/micromips_translate.c.inc | 10 +- > target/ppc/translate/fixedpoint-impl.c.inc | 22 +- > target/ppc/translate/fp-impl.c.inc | 4 +- > target/ppc/translate/vsx-impl.c.inc | 42 +- > target/riscv/insn_trans/trans_rva.c.inc | 22 +- > target/riscv/insn_trans/trans_rvb.c.inc | 48 +- > target/riscv/insn_trans/trans_rvd.c.inc | 4 +- > target/riscv/insn_trans/trans_rvh.c.inc | 4 +- > target/riscv/insn_trans/trans_rvi.c.inc | 730 ++++++++++++++++++--- > target/riscv/insn_trans/trans_rvm.c.inc | 192 +++++- > target/s390x/tcg/translate_vx.c.inc | 18 +- > tcg/aarch64/tcg-target.c.inc | 2 +- > tcg/arm/tcg-target.c.inc | 10 +- > tcg/i386/tcg-target.c.inc | 12 +- > tcg/mips/tcg-target.c.inc | 12 +- > tcg/ppc/tcg-target.c.inc | 16 +- > tcg/riscv/tcg-target.c.inc | 6 +- > tcg/s390x/tcg-target.c.inc | 18 +- > tcg/sparc/tcg-target.c.inc | 16 +- > target/riscv/meson.build | 1 + > target/s390x/tcg/insn-data.def | 28 +- > util/meson.build | 1 + > 67 files changed, 2006 insertions(+), 512 deletions(-) > create mode 100644 target/riscv/m128_helper.c > create mode 100644 util/int128.c > > -- > 2.34.1 > >
