MIPS: uasm: Add SLT uasm instruction

It will be used later on by bpf-jit

Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Cc: linux-mips@linux-mips.org
Cc: Markos Chandras <markos.chandras@imgtec.com>
Patchwork: https://patchwork.linux-mips.org/patch/7120/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

diff --git a/arch/mips/include/asm/uasm.h b/arch/mips/include/asm/uasm.h
index 43259b3..708c5d4 100644 (file)
--- a/arch/mips/include/asm/uasm.h
+++ b/arch/mips/include/asm/uasm.h
@@ -150,6 +150,7 @@ Ip_u2s3u1(_scd);
 Ip_u2s3u1(_sd);
 Ip_u2u1u3(_sll);
 Ip_u3u2u1(_sllv);
+Ip_s3s1s2(_slt);
 Ip_u2u1s3(_sltiu);
 Ip_u3u1u2(_sltu);
 Ip_u2u1u3(_sra);

diff --git a/arch/mips/include/uapi/asm/inst.h b/arch/mips/include/uapi/asm/inst.h
index 4b71602..4bfdb9d 100644 (file)
--- a/arch/mips/include/uapi/asm/inst.h
+++ b/arch/mips/include/uapi/asm/inst.h
@@ -273,6 +273,7 @@ enum mm_32a_minor_op {
        mm_and_op = 0x250,
        mm_or32_op = 0x290,
        mm_xor32_op = 0x310,
+       mm_slt_op = 0x350,
        mm_sltu_op = 0x390,
 };
 

diff --git a/arch/mips/mm/uasm-micromips.c b/arch/mips/mm/uasm-micromips.c
index 775c280..8399ddf 100644 (file)
--- a/arch/mips/mm/uasm-micromips.c
+++ b/arch/mips/mm/uasm-micromips.c
@@ -102,6 +102,7 @@ static struct insn insn_table_MM[] = {
        { insn_sd, 0, 0 },
        { insn_sll, M(mm_pool32a_op, 0, 0, 0, 0, mm_sll32_op), RT | RS | RD },
        { insn_sllv, M(mm_pool32a_op, 0, 0, 0, 0, mm_sllv32_op), RT | RS | RD },
+       { insn_slt, M(mm_pool32a_op, 0, 0, 0, 0, mm_slt_op), RT | RS | RD },
        { insn_sltiu, M(mm_sltiu32_op, 0, 0, 0, 0, 0), RT | RS | SIMM },
        { insn_sltu, M(mm_pool32a_op, 0, 0, 0, 0, mm_sltu_op), RT | RS | RD },
        { insn_sra, M(mm_pool32a_op, 0, 0, 0, 0, mm_sra_op), RT | RS | RD },

diff --git a/arch/mips/mm/uasm-mips.c b/arch/mips/mm/uasm-mips.c
index 38792c2..4535a9d 100644 (file)
--- a/arch/mips/mm/uasm-mips.c
+++ b/arch/mips/mm/uasm-mips.c
@@ -110,6 +110,7 @@ static struct insn insn_table[] = {
        { insn_sd,  M(sd_op, 0, 0, 0, 0, 0),  RS | RT | SIMM },
        { insn_sll,  M(spec_op, 0, 0, 0, 0, sll_op),  RT | RD | RE },
        { insn_sllv,  M(spec_op, 0, 0, 0, 0, sllv_op),  RS | RT | RD },
+       { insn_slt,  M(spec_op, 0, 0, 0, 0, slt_op),  RS | RT | RD },
        { insn_sltiu, M(sltiu_op, 0, 0, 0, 0, 0), RS | RT | SIMM },
        { insn_sltu, M(spec_op, 0, 0, 0, 0, sltu_op), RS | RT | RD },
        { insn_sra,  M(spec_op, 0, 0, 0, 0, sra_op),  RT | RD | RE },

diff --git a/arch/mips/mm/uasm.c b/arch/mips/mm/uasm.c
index 1e3e109..a01b0d6 100644 (file)
--- a/arch/mips/mm/uasm.c
+++ b/arch/mips/mm/uasm.c
@@ -53,7 +53,7 @@ enum opcode {
        insn_ld, insn_ldx, insn_lh, insn_ll, insn_lld, insn_lui, insn_lw,
        insn_lwx, insn_mfc0, insn_mfhi, insn_mflo, insn_mtc0, insn_mul,
        insn_or, insn_ori, insn_pref, insn_rfe, insn_rotr, insn_sc, insn_scd,
-       insn_sd, insn_sll, insn_sllv, insn_sltiu, insn_sltu, insn_sra,
+       insn_sd, insn_sll, insn_sllv, insn_slt, insn_sltiu, insn_sltu, insn_sra,
        insn_srl, insn_srlv, insn_subu, insn_sw, insn_sync, insn_syscall,
        insn_tlbp, insn_tlbr, insn_tlbwi, insn_tlbwr, insn_wait, insn_wsbh,
        insn_xor, insn_xori, insn_yield,
@@ -296,6 +296,7 @@ I_u2s3u1(_scd)
 I_u2s3u1(_sd)
 I_u2u1u3(_sll)
 I_u3u2u1(_sllv)
+I_s3s1s2(_slt)
 I_u2u1s3(_sltiu)
 I_u3u1u2(_sltu)
 I_u2u1u3(_sra)