MIPS: UAPI: Split inst.h into exported and kernel-only part.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

arch/mips/include/asm/inst.h

@@ -11,353 +11,7 @@
 #ifndef _ASM_INST_H
 #define _ASM_INST_H
 
-/*
- * Major opcodes; before MIPS IV cop1x was called cop3.
- */
-enum major_op {
-	spec_op, bcond_op, j_op, jal_op,
-	beq_op, bne_op, blez_op, bgtz_op,
-	addi_op, addiu_op, slti_op, sltiu_op,
-	andi_op, ori_op, xori_op, lui_op,
-	cop0_op, cop1_op, cop2_op, cop1x_op,
-	beql_op, bnel_op, blezl_op, bgtzl_op,
-	daddi_op, daddiu_op, ldl_op, ldr_op,
-	spec2_op, jalx_op, mdmx_op, spec3_op,
-	lb_op, lh_op, lwl_op, lw_op,
-	lbu_op, lhu_op, lwr_op, lwu_op,
-	sb_op, sh_op, swl_op, sw_op,
-	sdl_op, sdr_op, swr_op, cache_op,
-	ll_op, lwc1_op, lwc2_op, pref_op,
-	lld_op, ldc1_op, ldc2_op, ld_op,
-	sc_op, swc1_op, swc2_op, major_3b_op,
-	scd_op, sdc1_op, sdc2_op, sd_op
-};
-
-/*
- * func field of spec opcode.
- */
-enum spec_op {
-	sll_op, movc_op, srl_op, sra_op,
-	sllv_op, pmon_op, srlv_op, srav_op,
-	jr_op, jalr_op, movz_op, movn_op,
-	syscall_op, break_op, spim_op, sync_op,
-	mfhi_op, mthi_op, mflo_op, mtlo_op,
-	dsllv_op, spec2_unused_op, dsrlv_op, dsrav_op,
-	mult_op, multu_op, div_op, divu_op,
-	dmult_op, dmultu_op, ddiv_op, ddivu_op,
-	add_op, addu_op, sub_op, subu_op,
-	and_op, or_op, xor_op, nor_op,
-	spec3_unused_op, spec4_unused_op, slt_op, sltu_op,
-	dadd_op, daddu_op, dsub_op, dsubu_op,
-	tge_op, tgeu_op, tlt_op, tltu_op,
-	teq_op, spec5_unused_op, tne_op, spec6_unused_op,
-	dsll_op, spec7_unused_op, dsrl_op, dsra_op,
-	dsll32_op, spec8_unused_op, dsrl32_op, dsra32_op
-};
-
-/*
- * func field of spec2 opcode.
- */
-enum spec2_op {
-	madd_op, maddu_op, mul_op, spec2_3_unused_op,
-	msub_op, msubu_op, /* more unused ops */
-	clz_op = 0x20, clo_op,
-	dclz_op = 0x24, dclo_op,
-	sdbpp_op = 0x3f
-};
-
-/*
- * func field of spec3 opcode.
- */
-enum spec3_op {
-	ext_op, dextm_op, dextu_op, dext_op,
-	ins_op, dinsm_op, dinsu_op, dins_op,
-	lx_op = 0x0a,
-	bshfl_op = 0x20,
-	dbshfl_op = 0x24,
-	rdhwr_op = 0x3b
-};
-
-/*
- * rt field of bcond opcodes.
- */
-enum rt_op {
-	bltz_op, bgez_op, bltzl_op, bgezl_op,
-	spimi_op, unused_rt_op_0x05, unused_rt_op_0x06, unused_rt_op_0x07,
-	tgei_op, tgeiu_op, tlti_op, tltiu_op,
-	teqi_op, unused_0x0d_rt_op, tnei_op, unused_0x0f_rt_op,
-	bltzal_op, bgezal_op, bltzall_op, bgezall_op,
-	rt_op_0x14, rt_op_0x15, rt_op_0x16, rt_op_0x17,
-	rt_op_0x18, rt_op_0x19, rt_op_0x1a, rt_op_0x1b,
-	bposge32_op, rt_op_0x1d, rt_op_0x1e, rt_op_0x1f
-};
-
-/*
- * rs field of cop opcodes.
- */
-enum cop_op {
-	mfc_op        = 0x00, dmfc_op       = 0x01,
-	cfc_op        = 0x02, mtc_op        = 0x04,
-	dmtc_op       = 0x05, ctc_op        = 0x06,
-	bc_op         = 0x08, cop_op        = 0x10,
-	copm_op       = 0x18
-};
-
-/*
- * rt field of cop.bc_op opcodes
- */
-enum bcop_op {
-	bcf_op, bct_op, bcfl_op, bctl_op
-};
-
-/*
- * func field of cop0 coi opcodes.
- */
-enum cop0_coi_func {
-	tlbr_op       = 0x01, tlbwi_op      = 0x02,
-	tlbwr_op      = 0x06, tlbp_op       = 0x08,
-	rfe_op        = 0x10, eret_op       = 0x18
-};
-
-/*
- * func field of cop0 com opcodes.
- */
-enum cop0_com_func {
-	tlbr1_op      = 0x01, tlbw_op       = 0x02,
-	tlbp1_op      = 0x08, dctr_op       = 0x09,
-	dctw_op       = 0x0a
-};
-
-/*
- * fmt field of cop1 opcodes.
- */
-enum cop1_fmt {
-	s_fmt, d_fmt, e_fmt, q_fmt,
-	w_fmt, l_fmt
-};
-
-/*
- * func field of cop1 instructions using d, s or w format.
- */
-enum cop1_sdw_func {
-	fadd_op      =  0x00, fsub_op      =  0x01,
-	fmul_op      =  0x02, fdiv_op      =  0x03,
-	fsqrt_op     =  0x04, fabs_op      =  0x05,
-	fmov_op      =  0x06, fneg_op      =  0x07,
-	froundl_op   =  0x08, ftruncl_op   =  0x09,
-	fceill_op    =  0x0a, ffloorl_op   =  0x0b,
-	fround_op    =  0x0c, ftrunc_op    =  0x0d,
-	fceil_op     =  0x0e, ffloor_op    =  0x0f,
-	fmovc_op     =  0x11, fmovz_op     =  0x12,
-	fmovn_op     =  0x13, frecip_op    =  0x15,
-	frsqrt_op    =  0x16, fcvts_op     =  0x20,
-	fcvtd_op     =  0x21, fcvte_op     =  0x22,
-	fcvtw_op     =  0x24, fcvtl_op     =  0x25,
-	fcmp_op      =  0x30
-};
-
-/*
- * func field of cop1x opcodes (MIPS IV).
- */
-enum cop1x_func {
-	lwxc1_op     =  0x00, ldxc1_op     =  0x01,
-	pfetch_op    =  0x07, swxc1_op     =  0x08,
-	sdxc1_op     =  0x09, madd_s_op    =  0x20,
-	madd_d_op    =  0x21, madd_e_op    =  0x22,
-	msub_s_op    =  0x28, msub_d_op    =  0x29,
-	msub_e_op    =  0x2a, nmadd_s_op   =  0x30,
-	nmadd_d_op   =  0x31, nmadd_e_op   =  0x32,
-	nmsub_s_op   =  0x38, nmsub_d_op   =  0x39,
-	nmsub_e_op   =  0x3a
-};
-
-/*
- * func field for mad opcodes (MIPS IV).
- */
-enum mad_func {
-	madd_fp_op      = 0x08, msub_fp_op      = 0x0a,
-	nmadd_fp_op     = 0x0c, nmsub_fp_op     = 0x0e
-};
-
-/*
- * func field for special3 lx opcodes (Cavium Octeon).
- */
-enum lx_func {
-	lwx_op	= 0x00,
-	lhx_op	= 0x04,
-	lbux_op	= 0x06,
-	ldx_op	= 0x08,
-	lwux_op	= 0x10,
-	lhux_op	= 0x14,
-	lbx_op	= 0x16,
-};
-
-/*
- * Damn ...  bitfields depend from byteorder :-(
- */
-#ifdef __MIPSEB__
-struct j_format {	/* Jump format */
-	unsigned int opcode : 6;
-	unsigned int target : 26;
-};
-
-struct i_format {	/* Immediate format (addi, lw, ...) */
-	unsigned int opcode : 6;
-	unsigned int rs : 5;
-	unsigned int rt : 5;
-	signed int simmediate : 16;
-};
-
-struct u_format {	/* Unsigned immediate format (ori, xori, ...) */
-	unsigned int opcode : 6;
-	unsigned int rs : 5;
-	unsigned int rt : 5;
-	unsigned int uimmediate : 16;
-};
-
-struct c_format {	/* Cache (>= R6000) format */
-	unsigned int opcode : 6;
-	unsigned int rs : 5;
-	unsigned int c_op : 3;
-	unsigned int cache : 2;
-	unsigned int simmediate : 16;
-};
-
-struct r_format {	/* Register format */
-	unsigned int opcode : 6;
-	unsigned int rs : 5;
-	unsigned int rt : 5;
-	unsigned int rd : 5;
-	unsigned int re : 5;
-	unsigned int func : 6;
-};
-
-struct p_format {	/* Performance counter format (R10000) */
-	unsigned int opcode : 6;
-	unsigned int rs : 5;
-	unsigned int rt : 5;
-	unsigned int rd : 5;
-	unsigned int re : 5;
-	unsigned int func : 6;
-};
-
-struct f_format {	/* FPU register format */
-	unsigned int opcode : 6;
-	unsigned int : 1;
-	unsigned int fmt : 4;
-	unsigned int rt : 5;
-	unsigned int rd : 5;
-	unsigned int re : 5;
-	unsigned int func : 6;
-};
-
-struct ma_format {	/* FPU multiply and add format (MIPS IV) */
-	unsigned int opcode : 6;
-	unsigned int fr : 5;
-	unsigned int ft : 5;
-	unsigned int fs : 5;
-	unsigned int fd : 5;
-	unsigned int func : 4;
-	unsigned int fmt : 2;
-};
-
-struct b_format { /* BREAK and SYSCALL */
-	unsigned int opcode:6;
-	unsigned int code:20;
-	unsigned int func:6;
-};
-
-#elif defined(__MIPSEL__)
-
-struct j_format {	/* Jump format */
-	unsigned int target : 26;
-	unsigned int opcode : 6;
-};
-
-struct i_format {	/* Immediate format */
-	signed int simmediate : 16;
-	unsigned int rt : 5;
-	unsigned int rs : 5;
-	unsigned int opcode : 6;
-};
-
-struct u_format {	/* Unsigned immediate format */
-	unsigned int uimmediate : 16;
-	unsigned int rt : 5;
-	unsigned int rs : 5;
-	unsigned int opcode : 6;
-};
-
-struct c_format {	/* Cache (>= R6000) format */
-	unsigned int simmediate : 16;
-	unsigned int cache : 2;
-	unsigned int c_op : 3;
-	unsigned int rs : 5;
-	unsigned int opcode : 6;
-};
-
-struct r_format {	/* Register format */
-	unsigned int func : 6;
-	unsigned int re : 5;
-	unsigned int rd : 5;
-	unsigned int rt : 5;
-	unsigned int rs : 5;
-	unsigned int opcode : 6;
-};
-
-struct p_format {	/* Performance counter format (R10000) */
-	unsigned int func : 6;
-	unsigned int re : 5;
-	unsigned int rd : 5;
-	unsigned int rt : 5;
-	unsigned int rs : 5;
-	unsigned int opcode : 6;
-};
-
-struct f_format {	/* FPU register format */
-	unsigned int func : 6;
-	unsigned int re : 5;
-	unsigned int rd : 5;
-	unsigned int rt : 5;
-	unsigned int fmt : 4;
-	unsigned int : 1;
-	unsigned int opcode : 6;
-};
-
-struct ma_format {	/* FPU multiply and add format (MIPS IV) */
-	unsigned int fmt : 2;
-	unsigned int func : 4;
-	unsigned int fd : 5;
-	unsigned int fs : 5;
-	unsigned int ft : 5;
-	unsigned int fr : 5;
-	unsigned int opcode : 6;
-};
-
-struct b_format { /* BREAK and SYSCALL */
-	unsigned int func:6;
-	unsigned int code:20;
-	unsigned int opcode:6;
-};
-
-#else /* !defined (__MIPSEB__) && !defined (__MIPSEL__) */
-#error "MIPS but neither __MIPSEL__ nor __MIPSEB__?"
-#endif
-
-union mips_instruction {
-	unsigned int word;
-	unsigned short halfword[2];
-	unsigned char byte[4];
-	struct j_format j_format;
-	struct i_format i_format;
-	struct u_format u_format;
-	struct c_format c_format;
-	struct r_format r_format;
-	struct p_format p_format;
-	struct f_format f_format;
-	struct ma_format ma_format;
-	struct b_format b_format;
-};
+#include <uapi/asm/inst.h>
 
 /* HACHACHAHCAHC ...  */
 

arch/mips/include/uapi/asm/Kbuild

@@ -8,6 +8,7 @@ header-y += byteorder.h
 header-y += cachectl.h
 header-y += errno.h
 header-y += fcntl.h
+header-y += inst.h
 header-y += ioctl.h
 header-y += ioctls.h
 header-y += ipcbuf.h

arch/mips/include/uapi/asm/inst.h

+/*
+ * Format of an instruction in memory.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 1996, 2000 by Ralf Baechle
+ * Copyright (C) 2006 by Thiemo Seufer
+ */
+#ifndef _UAPI_ASM_INST_H
+#define _UAPI_ASM_INST_H
+
+/*
+ * Major opcodes; before MIPS IV cop1x was called cop3.
+ */
+enum major_op {
+	spec_op, bcond_op, j_op, jal_op,
+	beq_op, bne_op, blez_op, bgtz_op,
+	addi_op, addiu_op, slti_op, sltiu_op,
+	andi_op, ori_op, xori_op, lui_op,
+	cop0_op, cop1_op, cop2_op, cop1x_op,
+	beql_op, bnel_op, blezl_op, bgtzl_op,
+	daddi_op, daddiu_op, ldl_op, ldr_op,
+	spec2_op, jalx_op, mdmx_op, spec3_op,
+	lb_op, lh_op, lwl_op, lw_op,
+	lbu_op, lhu_op, lwr_op, lwu_op,
+	sb_op, sh_op, swl_op, sw_op,
+	sdl_op, sdr_op, swr_op, cache_op,
+	ll_op, lwc1_op, lwc2_op, pref_op,
+	lld_op, ldc1_op, ldc2_op, ld_op,
+	sc_op, swc1_op, swc2_op, major_3b_op,
+	scd_op, sdc1_op, sdc2_op, sd_op
+};
+
+/*
+ * func field of spec opcode.
+ */
+enum spec_op {
+	sll_op, movc_op, srl_op, sra_op,
+	sllv_op, pmon_op, srlv_op, srav_op,
+	jr_op, jalr_op, movz_op, movn_op,
+	syscall_op, break_op, spim_op, sync_op,
+	mfhi_op, mthi_op, mflo_op, mtlo_op,
+	dsllv_op, spec2_unused_op, dsrlv_op, dsrav_op,
+	mult_op, multu_op, div_op, divu_op,
+	dmult_op, dmultu_op, ddiv_op, ddivu_op,
+	add_op, addu_op, sub_op, subu_op,
+	and_op, or_op, xor_op, nor_op,
+	spec3_unused_op, spec4_unused_op, slt_op, sltu_op,
+	dadd_op, daddu_op, dsub_op, dsubu_op,
+	tge_op, tgeu_op, tlt_op, tltu_op,
+	teq_op, spec5_unused_op, tne_op, spec6_unused_op,
+	dsll_op, spec7_unused_op, dsrl_op, dsra_op,
+	dsll32_op, spec8_unused_op, dsrl32_op, dsra32_op
+};
+
+/*
+ * func field of spec2 opcode.
+ */
+enum spec2_op {
+	madd_op, maddu_op, mul_op, spec2_3_unused_op,
+	msub_op, msubu_op, /* more unused ops */
+	clz_op = 0x20, clo_op,
+	dclz_op = 0x24, dclo_op,
+	sdbpp_op = 0x3f
+};
+
+/*
+ * func field of spec3 opcode.
+ */
+enum spec3_op {
+	ext_op, dextm_op, dextu_op, dext_op,
+	ins_op, dinsm_op, dinsu_op, dins_op,
+	lx_op = 0x0a,
+	bshfl_op = 0x20,
+	dbshfl_op = 0x24,
+	rdhwr_op = 0x3b
+};
+
+/*
+ * rt field of bcond opcodes.
+ */
+enum rt_op {
+	bltz_op, bgez_op, bltzl_op, bgezl_op,
+	spimi_op, unused_rt_op_0x05, unused_rt_op_0x06, unused_rt_op_0x07,
+	tgei_op, tgeiu_op, tlti_op, tltiu_op,
+	teqi_op, unused_0x0d_rt_op, tnei_op, unused_0x0f_rt_op,
+	bltzal_op, bgezal_op, bltzall_op, bgezall_op,
+	rt_op_0x14, rt_op_0x15, rt_op_0x16, rt_op_0x17,
+	rt_op_0x18, rt_op_0x19, rt_op_0x1a, rt_op_0x1b,
+	bposge32_op, rt_op_0x1d, rt_op_0x1e, rt_op_0x1f
+};
+
+/*
+ * rs field of cop opcodes.
+ */
+enum cop_op {
+	mfc_op        = 0x00, dmfc_op       = 0x01,
+	cfc_op        = 0x02, mtc_op        = 0x04,
+	dmtc_op       = 0x05, ctc_op        = 0x06,
+	bc_op         = 0x08, cop_op        = 0x10,
+	copm_op       = 0x18
+};
+
+/*
+ * rt field of cop.bc_op opcodes
+ */
+enum bcop_op {
+	bcf_op, bct_op, bcfl_op, bctl_op
+};
+
+/*
+ * func field of cop0 coi opcodes.
+ */
+enum cop0_coi_func {
+	tlbr_op       = 0x01, tlbwi_op      = 0x02,
+	tlbwr_op      = 0x06, tlbp_op       = 0x08,
+	rfe_op        = 0x10, eret_op       = 0x18
+};
+
+/*
+ * func field of cop0 com opcodes.
+ */
+enum cop0_com_func {
+	tlbr1_op      = 0x01, tlbw_op       = 0x02,
+	tlbp1_op      = 0x08, dctr_op       = 0x09,
+	dctw_op       = 0x0a
+};
+
+/*
+ * fmt field of cop1 opcodes.
+ */
+enum cop1_fmt {
+	s_fmt, d_fmt, e_fmt, q_fmt,
+	w_fmt, l_fmt
+};
+
+/*
+ * func field of cop1 instructions using d, s or w format.
+ */
+enum cop1_sdw_func {
+	fadd_op      =  0x00, fsub_op      =  0x01,
+	fmul_op      =  0x02, fdiv_op      =  0x03,
+	fsqrt_op     =  0x04, fabs_op      =  0x05,
+	fmov_op      =  0x06, fneg_op      =  0x07,
+	froundl_op   =  0x08, ftruncl_op   =  0x09,
+	fceill_op    =  0x0a, ffloorl_op   =  0x0b,
+	fround_op    =  0x0c, ftrunc_op    =  0x0d,
+	fceil_op     =  0x0e, ffloor_op    =  0x0f,
+	fmovc_op     =  0x11, fmovz_op     =  0x12,
+	fmovn_op     =  0x13, frecip_op    =  0x15,
+	frsqrt_op    =  0x16, fcvts_op     =  0x20,
+	fcvtd_op     =  0x21, fcvte_op     =  0x22,
+	fcvtw_op     =  0x24, fcvtl_op     =  0x25,
+	fcmp_op      =  0x30
+};
+
+/*
+ * func field of cop1x opcodes (MIPS IV).
+ */
+enum cop1x_func {
+	lwxc1_op     =  0x00, ldxc1_op     =  0x01,
+	pfetch_op    =  0x07, swxc1_op     =  0x08,
+	sdxc1_op     =  0x09, madd_s_op    =  0x20,
+	madd_d_op    =  0x21, madd_e_op    =  0x22,
+	msub_s_op    =  0x28, msub_d_op    =  0x29,
+	msub_e_op    =  0x2a, nmadd_s_op   =  0x30,
+	nmadd_d_op   =  0x31, nmadd_e_op   =  0x32,
+	nmsub_s_op   =  0x38, nmsub_d_op   =  0x39,
+	nmsub_e_op   =  0x3a
+};
+
+/*
+ * func field for mad opcodes (MIPS IV).
+ */
+enum mad_func {
+	madd_fp_op      = 0x08, msub_fp_op      = 0x0a,
+	nmadd_fp_op     = 0x0c, nmsub_fp_op     = 0x0e
+};
+
+/*
+ * func field for special3 lx opcodes (Cavium Octeon).
+ */
+enum lx_func {
+	lwx_op	= 0x00,
+	lhx_op	= 0x04,
+	lbux_op	= 0x06,
+	ldx_op	= 0x08,
+	lwux_op	= 0x10,
+	lhux_op	= 0x14,
+	lbx_op	= 0x16,
+};
+
+/*
+ * Damn ...  bitfields depend from byteorder :-(
+ */
+#ifdef __MIPSEB__
+struct j_format {	/* Jump format */
+	unsigned int opcode : 6;
+	unsigned int target : 26;
+};
+
+struct i_format {	/* Immediate format (addi, lw, ...) */
+	unsigned int opcode : 6;
+	unsigned int rs : 5;
+	unsigned int rt : 5;
+	signed int simmediate : 16;
+};
+
+struct u_format {	/* Unsigned immediate format (ori, xori, ...) */
+	unsigned int opcode : 6;
+	unsigned int rs : 5;
+	unsigned int rt : 5;
+	unsigned int uimmediate : 16;
+};
+
+struct c_format {	/* Cache (>= R6000) format */
+	unsigned int opcode : 6;
+	unsigned int rs : 5;
+	unsigned int c_op : 3;
+	unsigned int cache : 2;
+	unsigned int simmediate : 16;
+};
+
+struct r_format {	/* Register format */
+	unsigned int opcode : 6;
+	unsigned int rs : 5;
+	unsigned int rt : 5;
+	unsigned int rd : 5;
+	unsigned int re : 5;
+	unsigned int func : 6;
+};
+
+struct p_format {	/* Performance counter format (R10000) */
+	unsigned int opcode : 6;
+	unsigned int rs : 5;
+	unsigned int rt : 5;
+	unsigned int rd : 5;
+	unsigned int re : 5;
+	unsigned int func : 6;
+};
+
+struct f_format {	/* FPU register format */
+	unsigned int opcode : 6;
+	unsigned int : 1;
+	unsigned int fmt : 4;
+	unsigned int rt : 5;
+	unsigned int rd : 5;
+	unsigned int re : 5;
+	unsigned int func : 6;
+};
+
+struct ma_format {	/* FPU multiply and add format (MIPS IV) */
+	unsigned int opcode : 6;
+	unsigned int fr : 5;
+	unsigned int ft : 5;
+	unsigned int fs : 5;
+	unsigned int fd : 5;
+	unsigned int func : 4;
+	unsigned int fmt : 2;
+};
+
+struct b_format { /* BREAK and SYSCALL */
+	unsigned int opcode:6;
+	unsigned int code:20;
+	unsigned int func:6;
+};
+
+#elif defined(__MIPSEL__)
+
+struct j_format {	/* Jump format */
+	unsigned int target : 26;
+	unsigned int opcode : 6;
+};
+
+struct i_format {	/* Immediate format */
+	signed int simmediate : 16;
+	unsigned int rt : 5;
+	unsigned int rs : 5;
+	unsigned int opcode : 6;
+};
+
+struct u_format {	/* Unsigned immediate format */
+	unsigned int uimmediate : 16;
+	unsigned int rt : 5;
+	unsigned int rs : 5;
+	unsigned int opcode : 6;
+};
+
+struct c_format {	/* Cache (>= R6000) format */
+	unsigned int simmediate : 16;
+	unsigned int cache : 2;
+	unsigned int c_op : 3;
+	unsigned int rs : 5;
+	unsigned int opcode : 6;
+};
+
+struct r_format {	/* Register format */
+	unsigned int func : 6;
+	unsigned int re : 5;
+	unsigned int rd : 5;
+	unsigned int rt : 5;
+	unsigned int rs : 5;
+	unsigned int opcode : 6;
+};
+
+struct p_format {	/* Performance counter format (R10000) */
+	unsigned int func : 6;
+	unsigned int re : 5;
+	unsigned int rd : 5;
+	unsigned int rt : 5;
+	unsigned int rs : 5;
+	unsigned int opcode : 6;
+};
+
+struct f_format {	/* FPU register format */
+	unsigned int func : 6;
+	unsigned int re : 5;
+	unsigned int rd : 5;
+	unsigned int rt : 5;
+	unsigned int fmt : 4;
+	unsigned int : 1;
+	unsigned int opcode : 6;
+};
+
+struct ma_format {	/* FPU multiply and add format (MIPS IV) */
+	unsigned int fmt : 2;
+	unsigned int func : 4;
+	unsigned int fd : 5;
+	unsigned int fs : 5;
+	unsigned int ft : 5;
+	unsigned int fr : 5;
+	unsigned int opcode : 6;
+};
+
+struct b_format { /* BREAK and SYSCALL */
+	unsigned int func:6;
+	unsigned int code:20;
+	unsigned int opcode:6;
+};
+
+#else /* !defined (__MIPSEB__) && !defined (__MIPSEL__) */
+#error "MIPS but neither __MIPSEL__ nor __MIPSEB__?"
+#endif
+
+union mips_instruction {
+	unsigned int word;
+	unsigned short halfword[2];
+	unsigned char byte[4];
+	struct j_format j_format;
+	struct i_format i_format;
+	struct u_format u_format;
+	struct c_format c_format;
+	struct r_format r_format;
+	struct p_format p_format;
+	struct f_format f_format;
+	struct ma_format ma_format;
+	struct b_format b_format;
+};
+
+#endif /* _UAPI_ASM_INST_H */