MIPS: Implement microMIPS MT ASE helpers

Implement various microMIPS MT ASE helpers accroading to:

MIPS® Architecture for Programmers
Volume IV-f: The MIPS® MT Module for the microMIPS32™ Architecture

Fixes build error:
{standard input}:2616: Error: branch to a symbol in another ISA mode

This make MT ASE available on microMIPS as well.

Boot tested on M5150 with microMIPS enabled on M5150.
Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>

arch/mips/include/asm/asmmacro.h

@@ -216,27 +216,33 @@
  * Temporary until all gas have MT ASE support
  */
 	.macro	DMT	reg=0
-	.word	0x41600bc1 | (\reg << 16)
+	insn_if_mips	0x41600bc1 | (\reg << 16)
+	insn32_if_mm    0x0000057C | (\reg << 21)
 	.endm
 
 	.macro	EMT	reg=0
-	.word	0x41600be1 | (\reg << 16)
+	insn_if_mips	0x41600be1 | (\reg << 16)
+	insn32_if_mm    0x0000257C | (\reg << 21)
 	.endm
 
 	.macro	DVPE	reg=0
-	.word	0x41600001 | (\reg << 16)
+	insn_if_mips	0x41600001 | (\reg << 16)
+	insn32_if_mm    0x0000157C | (\reg << 21)
 	.endm
 
 	.macro	EVPE	reg=0
-	.word	0x41600021 | (\reg << 16)
+	insn_if_mips	0x41600021 | (\reg << 16)
+	insn32_if_mm    0x0000357C | (\reg << 21)
 	.endm
 
-	.macro	MFTR	rt=0, rd=0, u=0, sel=0
-	 .word	0x41000000 | (\rt << 16) | (\rd << 11) | (\u << 5) | (\sel)
+	.macro	MFTR	rs=0, rt=0, u=0, sel=0
+	insn_if_mips	0x41000000 | (\rt << 16) | (\rs << 11) | (\u << 5) | (\sel)
+	insn32_if_mm	0x0000000E | (\rt << 21) | (\rs << 16) | (\u << 10) | (\sel << 4)
 	.endm
 
-	.macro	MTTR	rt=0, rd=0, u=0, sel=0
-	 .word	0x41800000 | (\rt << 16) | (\rd << 11) | (\u << 5) | (\sel)
+	.macro	MTTR	rt=0, rs=0, u=0, sel=0
+	insn_if_mips	0x41800000 | (\rt << 16) | (\rs << 11) | (\u << 5) | (\sel)
+	insn32_if_mm	0x00000006 | (\rt << 21) | (\rs << 16) | (\u << 10) | (\sel << 4)
 	.endm
 
 #ifdef TOOLCHAIN_SUPPORTS_MSA

arch/mips/include/asm/mipsregs.h

@@ -1452,6 +1452,15 @@ static inline int mm_insn_16bit(u16 insn)
  * the ENC encodings.
  */
 
+/* Instructions with 1 register operand */
+#define _ASM_MACRO_1R(OP, R1, ENC)				\
+		".macro	" #OP " " #R1 "\n\t"			\
+		_ASM_SET_PARSE_R					\
+		"parse_r __" #R1 ", \\" #R1 "\n\t"			\
+		ENC							\
+		_ASM_UNSET_PARSE_R					\
+		".endm\n\t"
+
 /* Instructions with 1 register operand & 1 immediate operand */
 #define _ASM_MACRO_1R1I(OP, R1, I2, ENC)				\
 		".macro	" #OP " " #R1 ", " #I2 "\n\t"			\

arch/mips/kernel/vpe-mt.c

@@ -95,8 +95,8 @@ int vpe_run(struct vpe *v)
 	 * We don't pass the memsize here, so VPE programs need to be
 	 * compiled with DFLT_STACK_SIZE and DFLT_HEAP_SIZE defined.
 	 */
-	mttgpr(7, 0);
-	mttgpr(6, v->ntcs);
+	mttgpr($7, 0);
+	mttgpr($6, v->ntcs);
 
 	/* set up VPE1 */
 	/*