MIPS: uasm: Add INS and EXT instructions.

These are MIPS32R2 instructions for merging and extracting bit fields
from one GPR into another.
Signed-off-by: Steven J. Hill <sjhill@mips.com>

arch/mips/include/asm/uasm.h

@@ -90,6 +90,8 @@ Ip_u2u1u3(_dsrl);
 Ip_u2u1u3(_dsrl32);
 Ip_u3u1u2(_dsubu);
 Ip_0(_eret);
+Ip_u2u1msbu3(_ext);
+Ip_u2u1msbu3(_ins);
 Ip_u1(_j);
 Ip_u1(_jal);
 Ip_u1(_jr);

arch/mips/mm/uasm.c

@@ -63,11 +63,12 @@ enum opcode {
 	insn_bne, insn_cache, insn_daddiu, insn_daddu, insn_dins, insn_dinsm,
 	insn_dmfc0, insn_dmtc0, insn_drotr, insn_drotr32, insn_dsll,
 	insn_dsll32, insn_dsra, insn_dsrl, insn_dsrl32, insn_dsubu, insn_eret,
-	insn_j, insn_jal, insn_jr, insn_ld, insn_ldx, insn_ll, insn_lld,
-	insn_lui, insn_lw, insn_lwx, insn_mfc0, insn_mtc0, insn_or, insn_ori,
-	insn_pref, insn_rfe, insn_rotr, insn_sc, insn_scd, insn_sd, insn_sll,
-	insn_sra, insn_srl, insn_subu, insn_sw, insn_syscall, insn_tlbp,
-	insn_tlbr, insn_tlbwi, insn_tlbwr, insn_xor, insn_xori,
+	insn_ext, insn_ins, insn_j, insn_jal, insn_jr, insn_ld, insn_ldx,
+	insn_ll, insn_lld, insn_lui, insn_lw, insn_lwx, insn_mfc0, insn_mtc0,
+	insn_or, insn_ori, insn_pref, insn_rfe, insn_rotr, insn_sc, insn_scd,
+	insn_sd, insn_sll, insn_sra, insn_srl, insn_subu, insn_sw,
+	insn_syscall, insn_tlbp, insn_tlbr, insn_tlbwi, insn_tlbwr, insn_xor,
+	insn_xori,
 };
 
 struct insn {
@@ -115,6 +116,9 @@ static struct insn insn_table[] __uasminitdata = {
 	{ insn_dsrl, M(spec_op, 0, 0, 0, 0, dsrl_op), RT | RD | RE },
 	{ insn_dsubu, M(spec_op, 0, 0, 0, 0, dsubu_op), RS | RT | RD },
 	{ insn_eret,  M(cop0_op, cop_op, 0, 0, 0, eret_op),  0 },
+	{ insn_ext, M(spec3_op, 0, 0, 0, 0, ext_op), RS | RT | RD | RE },
+	{ insn_ins, M(spec3_op, 0, 0, 0, 0, ins_op), RS | RT | RD | RE },
+	{ insn_j,  M(j_op, 0, 0, 0, 0, 0),  JIMM },
 	{ insn_jal,  M(jal_op, 0, 0, 0, 0, 0),  JIMM },
 	{ insn_j,  M(j_op, 0, 0, 0, 0, 0),  JIMM },
 	{ insn_jr,  M(spec_op, 0, 0, 0, 0, jr_op),  RS },
@@ -341,6 +345,13 @@ Ip_u2u1msbu3(op)					\
 }							\
 UASM_EXPORT_SYMBOL(uasm_i##op);
 
+#define I_u2u1msbdu3(op) 				\
+Ip_u2u1msbu3(op)					\
+{							\
+	build_insn(buf, insn##op, b, a, d-1, c);	\
+}							\
+UASM_EXPORT_SYMBOL(uasm_i##op);
+
 #define I_u1u2(op)					\
 Ip_u1u2(op)						\
 {							\
@@ -394,6 +405,8 @@ I_u2u1u3(_drotr)
 I_u2u1u3(_drotr32)
 I_u3u1u2(_dsubu)
 I_0(_eret)
+I_u2u1msbdu3(_ext)
+I_u2u1msbu3(_ins)
 I_u1(_j)
 I_u1(_jal)
 I_u1(_jr)