diff options
Diffstat (limited to '')
| -rw-r--r-- | drivers/media/rc/bpf-lirc.c | 24 | ||||
| -rw-r--r-- | drivers/net/ethernet/netronome/nfp/bpf/jit.c | 45 |
2 files changed, 69 insertions, 0 deletions
diff --git a/drivers/media/rc/bpf-lirc.c b/drivers/media/rc/bpf-lirc.c index 8b97fd1f0cea..390a722e6211 100644 --- a/drivers/media/rc/bpf-lirc.c +++ b/drivers/media/rc/bpf-lirc.c @@ -59,6 +59,28 @@ static const struct bpf_func_proto rc_keydown_proto = { .arg4_type = ARG_ANYTHING, }; +BPF_CALL_3(bpf_rc_pointer_rel, u32*, sample, s32, rel_x, s32, rel_y) +{ + struct ir_raw_event_ctrl *ctrl; + + ctrl = container_of(sample, struct ir_raw_event_ctrl, bpf_sample); + + input_report_rel(ctrl->dev->input_dev, REL_X, rel_x); + input_report_rel(ctrl->dev->input_dev, REL_Y, rel_y); + input_sync(ctrl->dev->input_dev); + + return 0; +} + +static const struct bpf_func_proto rc_pointer_rel_proto = { + .func = bpf_rc_pointer_rel, + .gpl_only = true, + .ret_type = RET_INTEGER, + .arg1_type = ARG_PTR_TO_CTX, + .arg2_type = ARG_ANYTHING, + .arg3_type = ARG_ANYTHING, +}; + static const struct bpf_func_proto * lirc_mode2_func_proto(enum bpf_func_id func_id, const struct bpf_prog *prog) { @@ -67,6 +89,8 @@ lirc_mode2_func_proto(enum bpf_func_id func_id, const struct bpf_prog *prog) return &rc_repeat_proto; case BPF_FUNC_rc_keydown: return &rc_keydown_proto; + case BPF_FUNC_rc_pointer_rel: + return &rc_pointer_rel_proto; case BPF_FUNC_map_lookup_elem: return &bpf_map_lookup_elem_proto; case BPF_FUNC_map_update_elem: diff --git a/drivers/net/ethernet/netronome/nfp/bpf/jit.c b/drivers/net/ethernet/netronome/nfp/bpf/jit.c index 97d33bb4d84d..662cbc21d909 100644 --- a/drivers/net/ethernet/netronome/nfp/bpf/jit.c +++ b/drivers/net/ethernet/netronome/nfp/bpf/jit.c @@ -2382,6 +2382,49 @@ static int neg_reg(struct nfp_prog *nfp_prog, struct nfp_insn_meta *meta) return 0; } +static int __ashr_imm(struct nfp_prog *nfp_prog, u8 dst, u8 shift_amt) +{ + /* Set signedness bit (MSB of result). */ + emit_alu(nfp_prog, reg_none(), reg_a(dst), ALU_OP_OR, reg_imm(0)); + emit_shf(nfp_prog, reg_both(dst), reg_none(), SHF_OP_ASHR, reg_b(dst), + SHF_SC_R_SHF, shift_amt); + wrp_immed(nfp_prog, reg_both(dst + 1), 0); + + return 0; +} + +static int ashr_reg(struct nfp_prog *nfp_prog, struct nfp_insn_meta *meta) +{ + const struct bpf_insn *insn = &meta->insn; + u64 umin, umax; + u8 dst, src; + + dst = insn->dst_reg * 2; + umin = meta->umin_src; + umax = meta->umax_src; + if (umin == umax) + return __ashr_imm(nfp_prog, dst, umin); + + src = insn->src_reg * 2; + /* NOTE: the first insn will set both indirect shift amount (source A) + * and signedness bit (MSB of result). + */ + emit_alu(nfp_prog, reg_none(), reg_a(src), ALU_OP_OR, reg_b(dst)); + emit_shf_indir(nfp_prog, reg_both(dst), reg_none(), SHF_OP_ASHR, + reg_b(dst), SHF_SC_R_SHF); + wrp_immed(nfp_prog, reg_both(dst + 1), 0); + + return 0; +} + +static int ashr_imm(struct nfp_prog *nfp_prog, struct nfp_insn_meta *meta) +{ + const struct bpf_insn *insn = &meta->insn; + u8 dst = insn->dst_reg * 2; + + return __ashr_imm(nfp_prog, dst, insn->imm); +} + static int shl_imm(struct nfp_prog *nfp_prog, struct nfp_insn_meta *meta) { const struct bpf_insn *insn = &meta->insn; @@ -3286,6 +3329,8 @@ static const instr_cb_t instr_cb[256] = { [BPF_ALU | BPF_DIV | BPF_K] = div_imm, [BPF_ALU | BPF_NEG] = neg_reg, [BPF_ALU | BPF_LSH | BPF_K] = shl_imm, + [BPF_ALU | BPF_ARSH | BPF_X] = ashr_reg, + [BPF_ALU | BPF_ARSH | BPF_K] = ashr_imm, [BPF_ALU | BPF_END | BPF_X] = end_reg32, [BPF_LD | BPF_IMM | BPF_DW] = imm_ld8, [BPF_LD | BPF_ABS | BPF_B] = data_ld1, |