Pu Lehui <pulehui@xxxxxxxxxxxxxxx> writes: > From: Pu Lehui <pulehui@xxxxxxxxxx> > > patch 1-3 refactor redundant load and store operations. > patch 4-7 add Zacas instructions for cmpxchg. > patch 8 optimizes exception table handling. > patch 9-10 add support arena atomics for RV64. > > Tests `test_progs -t atomic,arena` have passed as shown bellow, > as well as `test_verifier` and `test_bpf.ko` have passed. [...] > Pu Lehui (10): > riscv, bpf: Extract emit_stx() helper > riscv, bpf: Extract emit_st() helper > riscv, bpf: Extract emit_ldx() helper > riscv: Separate toolchain support dependency from RISCV_ISA_ZACAS > riscv, bpf: Add rv_ext_enabled macro for runtime detection extentsion > riscv, bpf: Add Zacas instructions > riscv, bpf: Optimize cmpxchg insn with Zacas support > riscv, bpf: Add ex_insn_off and ex_jmp_off for exception table > handling > riscv, bpf: Add support arena atomics for RV64 > selftests/bpf: Enable arena atomics tests for RV64 > > arch/riscv/Kconfig | 1 - > arch/riscv/include/asm/cmpxchg.h | 6 +- > arch/riscv/kernel/setup.c | 1 + > arch/riscv/net/bpf_jit.h | 70 ++- > arch/riscv/net/bpf_jit_comp64.c | 516 +++++------------- > .../selftests/bpf/progs/arena_atomics.c | 9 +- > 6 files changed, 214 insertions(+), 389 deletions(-) What a nice series! The best kind of changeset -- new feature, less code! Thank you, Lehui! Again, apologies for the horrible SLA. The weather in Sweden was simply Too Good this summer! Tested-by: Björn Töpel <bjorn@xxxxxxxxxxxx> # QEMU only Acked-by: Björn Töpel <bjorn@xxxxxxxxxx>
