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1/*
2 * This file is subject to the terms and conditions of the GNU General Public
3 * License. See the file "COPYING" in the main directory of this archive
4 * for more details.
5 *
6 * Copyright (C) 2004, 2005, 2006, 2008 Thiemo Seufer
7 * Copyright (C) 2005 Maciej W. Rozycki
8 * Copyright (C) 2006 Ralf Baechle ([email protected])
9 * Copyright (C) 2012, 2013 MIPS Technologies, Inc. All rights reserved.
10 */
11
12#ifndef __ASM_UASM_H
13#define __ASM_UASM_H
14
15#include <linux/types.h>
16
17#ifdef CONFIG_EXPORT_UASM
18#include <linux/export.h>
19#define UASM_EXPORT_SYMBOL(sym) EXPORT_SYMBOL(sym)
20#else
21#define UASM_EXPORT_SYMBOL(sym)
22#endif
23
24#define Ip_u1u2u3(op) \
25void uasm_i##op(u32 **buf, unsigned int a, unsigned int b, unsigned int c)
26
27#define Ip_u2u1u3(op) \
28void uasm_i##op(u32 **buf, unsigned int a, unsigned int b, unsigned int c)
29
30#define Ip_u3u2u1(op) \
31void uasm_i##op(u32 **buf, unsigned int a, unsigned int b, unsigned int c)
32
33#define Ip_u3u1u2(op) \
34void uasm_i##op(u32 **buf, unsigned int a, unsigned int b, unsigned int c)
35
36#define Ip_u1u2s3(op) \
37void uasm_i##op(u32 **buf, unsigned int a, unsigned int b, signed int c)
38
39#define Ip_u2s3u1(op) \
40void uasm_i##op(u32 **buf, unsigned int a, signed int b, unsigned int c)
41
42#define Ip_s3s1s2(op) \
43void uasm_i##op(u32 **buf, int a, int b, int c)
44
45#define Ip_u2u1s3(op) \
46void uasm_i##op(u32 **buf, unsigned int a, unsigned int b, signed int c)
47
48#define Ip_u2u1msbu3(op) \
49void uasm_i##op(u32 **buf, unsigned int a, unsigned int b, unsigned int c, \
50 unsigned int d)
51
52#define Ip_u1u2(op) \
53void uasm_i##op(u32 **buf, unsigned int a, unsigned int b)
54
55#define Ip_u2u1(op) \
56void uasm_i##op(u32 **buf, unsigned int a, unsigned int b)
57
58#define Ip_u1s2(op) \
59void uasm_i##op(u32 **buf, unsigned int a, signed int b)
60
61#define Ip_u1(op) void uasm_i##op(u32 **buf, unsigned int a)
62
63#define Ip_0(op) void uasm_i##op(u32 **buf)
64
65Ip_u2u1s3(_addiu);
66Ip_u3u1u2(_addu);
67Ip_u3u1u2(_and);
68Ip_u2u1u3(_andi);
69Ip_u1u2s3(_bbit0);
70Ip_u1u2s3(_bbit1);
71Ip_u1u2s3(_beq);
72Ip_u1u2s3(_beql);
73Ip_u1s2(_bgez);
74Ip_u1s2(_bgezl);
75Ip_u1s2(_bgtz);
76Ip_u1s2(_blez);
77Ip_u1s2(_bltz);
78Ip_u1s2(_bltzl);
79Ip_u1u2s3(_bne);
80Ip_u1(_break);
81Ip_u2s3u1(_cache);
82Ip_u1u2(_cfc1);
83Ip_u2u1(_cfcmsa);
84Ip_u1u2(_ctc1);
85Ip_u2u1(_ctcmsa);
86Ip_u2u1s3(_daddiu);
87Ip_u3u1u2(_daddu);
88Ip_u1u2(_ddivu);
89Ip_u3u1u2(_ddivu_r6);
90Ip_u1(_di);
91Ip_u2u1msbu3(_dins);
92Ip_u2u1msbu3(_dinsm);
93Ip_u2u1msbu3(_dinsu);
94Ip_u1u2(_divu);
95Ip_u3u1u2(_divu_r6);
96Ip_u1u2u3(_dmfc0);
97Ip_u3u1u2(_dmodu);
98Ip_u1u2u3(_dmtc0);
99Ip_u1u2(_dmultu);
100Ip_u3u1u2(_dmulu);
101Ip_u2u1u3(_drotr);
102Ip_u2u1u3(_drotr32);
103Ip_u2u1(_dsbh);
104Ip_u2u1(_dshd);
105Ip_u2u1u3(_dsll);
106Ip_u2u1u3(_dsll32);
107Ip_u3u2u1(_dsllv);
108Ip_u2u1u3(_dsra);
109Ip_u2u1u3(_dsra32);
110Ip_u3u2u1(_dsrav);
111Ip_u2u1u3(_dsrl);
112Ip_u2u1u3(_dsrl32);
113Ip_u3u2u1(_dsrlv);
114Ip_u3u1u2(_dsubu);
115Ip_0(_eret);
116Ip_u2u1msbu3(_ext);
117Ip_u2u1msbu3(_ins);
118Ip_u1(_j);
119Ip_u1(_jal);
120Ip_u2u1(_jalr);
121Ip_u1(_jr);
122Ip_u2s3u1(_lb);
123Ip_u2s3u1(_lbu);
124Ip_u2s3u1(_ld);
125Ip_u3u1u2(_ldx);
126Ip_u2s3u1(_lh);
127Ip_u2s3u1(_lhu);
128Ip_u2s3u1(_ll);
129Ip_u2s3u1(_lld);
130Ip_u1s2(_lui);
131Ip_u2s3u1(_lw);
132Ip_u2s3u1(_lwu);
133Ip_u3u1u2(_lwx);
134Ip_u1u2u3(_mfc0);
135Ip_u1u2u3(_mfhc0);
136Ip_u1(_mfhi);
137Ip_u1(_mflo);
138Ip_u3u1u2(_modu);
139Ip_u3u1u2(_movn);
140Ip_u3u1u2(_movz);
141Ip_u1u2u3(_mtc0);
142Ip_u1u2u3(_mthc0);
143Ip_u1(_mthi);
144Ip_u1(_mtlo);
145Ip_u3u1u2(_mul);
146Ip_u1u2(_multu);
147Ip_u3u1u2(_mulu);
148Ip_u3u1u2(_muhu);
149Ip_u3u1u2(_nor);
150Ip_u3u1u2(_or);
151Ip_u2u1u3(_ori);
152Ip_u2s3u1(_pref);
153Ip_0(_rfe);
154Ip_u2u1u3(_rotr);
155Ip_u2s3u1(_sb);
156Ip_u2s3u1(_sc);
157Ip_u2s3u1(_scd);
158Ip_u2s3u1(_sd);
159Ip_u3u1u2(_seleqz);
160Ip_u3u1u2(_selnez);
161Ip_u2s3u1(_sh);
162Ip_u2u1u3(_sll);
163Ip_u3u2u1(_sllv);
164Ip_s3s1s2(_slt);
165Ip_u2u1s3(_slti);
166Ip_u2u1s3(_sltiu);
167Ip_u3u1u2(_sltu);
168Ip_u2u1u3(_sra);
169Ip_u3u2u1(_srav);
170Ip_u2u1u3(_srl);
171Ip_u3u2u1(_srlv);
172Ip_u3u1u2(_subu);
173Ip_u2s3u1(_sw);
174Ip_u1(_sync);
175Ip_u1(_syscall);
176Ip_0(_tlbp);
177Ip_0(_tlbr);
178Ip_0(_tlbwi);
179Ip_0(_tlbwr);
180Ip_u1(_wait);
181Ip_u2u1(_wsbh);
182Ip_u3u1u2(_xor);
183Ip_u2u1u3(_xori);
184Ip_u2u1(_yield);
185Ip_u1u2(_ldpte);
186Ip_u2u1u3(_lddir);
187
188/* Handle labels. */
189struct uasm_label {
190 u32 *addr;
191 int lab;
192};
193
194void uasm_build_label(struct uasm_label **lab, u32 *addr,
195 int lid);
196int uasm_in_compat_space_p(long addr);
197int uasm_rel_hi(long val);
198int uasm_rel_lo(long val);
199void UASM_i_LA_mostly(u32 **buf, unsigned int rs, long addr);
200void UASM_i_LA(u32 **buf, unsigned int rs, long addr);
201
202#define UASM_L_LA(lb) \
203static inline void uasm_l##lb(struct uasm_label **lab, u32 *addr) \
204{ \
205 uasm_build_label(lab, addr, label##lb); \
206}
207
208/* convenience macros for instructions */
209#ifdef CONFIG_64BIT
210# define UASM_i_ADDIU(buf, rs, rt, val) uasm_i_daddiu(buf, rs, rt, val)
211# define UASM_i_ADDU(buf, rs, rt, rd) uasm_i_daddu(buf, rs, rt, rd)
212# define UASM_i_LL(buf, rs, rt, off) uasm_i_lld(buf, rs, rt, off)
213# define UASM_i_LW(buf, rs, rt, off) uasm_i_ld(buf, rs, rt, off)
214# define UASM_i_LWX(buf, rs, rt, rd) uasm_i_ldx(buf, rs, rt, rd)
215# define UASM_i_MFC0(buf, rt, rd...) uasm_i_dmfc0(buf, rt, rd)
216# define UASM_i_MTC0(buf, rt, rd...) uasm_i_dmtc0(buf, rt, rd)
217# define UASM_i_ROTR(buf, rs, rt, sh) uasm_i_drotr(buf, rs, rt, sh)
218# define UASM_i_SC(buf, rs, rt, off) uasm_i_scd(buf, rs, rt, off)
219# define UASM_i_SLL(buf, rs, rt, sh) uasm_i_dsll(buf, rs, rt, sh)
220# define UASM_i_SRA(buf, rs, rt, sh) uasm_i_dsra(buf, rs, rt, sh)
221# define UASM_i_SRL(buf, rs, rt, sh) uasm_i_dsrl(buf, rs, rt, sh)
222# define UASM_i_SRL_SAFE(buf, rs, rt, sh) uasm_i_dsrl_safe(buf, rs, rt, sh)
223# define UASM_i_SUBU(buf, rs, rt, rd) uasm_i_dsubu(buf, rs, rt, rd)
224# define UASM_i_SW(buf, rs, rt, off) uasm_i_sd(buf, rs, rt, off)
225#else
226# define UASM_i_ADDIU(buf, rs, rt, val) uasm_i_addiu(buf, rs, rt, val)
227# define UASM_i_ADDU(buf, rs, rt, rd) uasm_i_addu(buf, rs, rt, rd)
228# define UASM_i_LL(buf, rs, rt, off) uasm_i_ll(buf, rs, rt, off)
229# define UASM_i_LW(buf, rs, rt, off) uasm_i_lw(buf, rs, rt, off)
230# define UASM_i_LWX(buf, rs, rt, rd) uasm_i_lwx(buf, rs, rt, rd)
231# define UASM_i_MFC0(buf, rt, rd...) uasm_i_mfc0(buf, rt, rd)
232# define UASM_i_MTC0(buf, rt, rd...) uasm_i_mtc0(buf, rt, rd)
233# define UASM_i_ROTR(buf, rs, rt, sh) uasm_i_rotr(buf, rs, rt, sh)
234# define UASM_i_SC(buf, rs, rt, off) uasm_i_sc(buf, rs, rt, off)
235# define UASM_i_SLL(buf, rs, rt, sh) uasm_i_sll(buf, rs, rt, sh)
236# define UASM_i_SRA(buf, rs, rt, sh) uasm_i_sra(buf, rs, rt, sh)
237# define UASM_i_SRL(buf, rs, rt, sh) uasm_i_srl(buf, rs, rt, sh)
238# define UASM_i_SRL_SAFE(buf, rs, rt, sh) uasm_i_srl(buf, rs, rt, sh)
239# define UASM_i_SUBU(buf, rs, rt, rd) uasm_i_subu(buf, rs, rt, rd)
240# define UASM_i_SW(buf, rs, rt, off) uasm_i_sw(buf, rs, rt, off)
241#endif
242
243#define uasm_i_b(buf, off) uasm_i_beq(buf, 0, 0, off)
244#define uasm_i_beqz(buf, rs, off) uasm_i_beq(buf, rs, 0, off)
245#define uasm_i_beqzl(buf, rs, off) uasm_i_beql(buf, rs, 0, off)
246#define uasm_i_bnez(buf, rs, off) uasm_i_bne(buf, rs, 0, off)
247#define uasm_i_bnezl(buf, rs, off) uasm_i_bnel(buf, rs, 0, off)
248#define uasm_i_ehb(buf) uasm_i_sll(buf, 0, 0, 3)
249#define uasm_i_move(buf, a, b) UASM_i_ADDU(buf, a, 0, b)
250#ifdef CONFIG_CPU_NOP_WORKAROUNDS
251#define uasm_i_nop(buf) uasm_i_or(buf, 1, 1, 0)
252#else
253#define uasm_i_nop(buf) uasm_i_sll(buf, 0, 0, 0)
254#endif
255#define uasm_i_ssnop(buf) uasm_i_sll(buf, 0, 0, 1)
256
257static inline void uasm_i_drotr_safe(u32 **p, unsigned int a1,
258 unsigned int a2, unsigned int a3)
259{
260 if (a3 < 32)
261 uasm_i_drotr(p, a1, a2, a3);
262 else
263 uasm_i_drotr32(p, a1, a2, a3 - 32);
264}
265
266static inline void uasm_i_dsll_safe(u32 **p, unsigned int a1,
267 unsigned int a2, unsigned int a3)
268{
269 if (a3 < 32)
270 uasm_i_dsll(p, a1, a2, a3);
271 else
272 uasm_i_dsll32(p, a1, a2, a3 - 32);
273}
274
275static inline void uasm_i_dsrl_safe(u32 **p, unsigned int a1,
276 unsigned int a2, unsigned int a3)
277{
278 if (a3 < 32)
279 uasm_i_dsrl(p, a1, a2, a3);
280 else
281 uasm_i_dsrl32(p, a1, a2, a3 - 32);
282}
283
284static inline void uasm_i_dsra_safe(u32 **p, unsigned int a1,
285 unsigned int a2, unsigned int a3)
286{
287 if (a3 < 32)
288 uasm_i_dsra(p, a1, a2, a3);
289 else
290 uasm_i_dsra32(p, a1, a2, a3 - 32);
291}
292
293/* Handle relocations. */
294struct uasm_reloc {
295 u32 *addr;
296 unsigned int type;
297 int lab;
298};
299
300/* This is zero so we can use zeroed label arrays. */
301#define UASM_LABEL_INVALID 0
302
303void uasm_r_mips_pc16(struct uasm_reloc **rel, u32 *addr, int lid);
304void uasm_resolve_relocs(struct uasm_reloc *rel, struct uasm_label *lab);
305void uasm_move_relocs(struct uasm_reloc *rel, u32 *first, u32 *end, long off);
306void uasm_move_labels(struct uasm_label *lab, u32 *first, u32 *end, long off);
307void uasm_copy_handler(struct uasm_reloc *rel, struct uasm_label *lab,
308 u32 *first, u32 *end, u32 *target);
309int uasm_insn_has_bdelay(struct uasm_reloc *rel, u32 *addr);
310
311/* Convenience functions for labeled branches. */
312void uasm_il_b(u32 **p, struct uasm_reloc **r, int lid);
313void uasm_il_bbit0(u32 **p, struct uasm_reloc **r, unsigned int reg,
314 unsigned int bit, int lid);
315void uasm_il_bbit1(u32 **p, struct uasm_reloc **r, unsigned int reg,
316 unsigned int bit, int lid);
317void uasm_il_beq(u32 **p, struct uasm_reloc **r, unsigned int r1,
318 unsigned int r2, int lid);
319void uasm_il_beqz(u32 **p, struct uasm_reloc **r, unsigned int reg, int lid);
320void uasm_il_beqzl(u32 **p, struct uasm_reloc **r, unsigned int reg, int lid);
321void uasm_il_bgezl(u32 **p, struct uasm_reloc **r, unsigned int reg, int lid);
322void uasm_il_bgez(u32 **p, struct uasm_reloc **r, unsigned int reg, int lid);
323void uasm_il_bltz(u32 **p, struct uasm_reloc **r, unsigned int reg, int lid);
324void uasm_il_bne(u32 **p, struct uasm_reloc **r, unsigned int reg1,
325 unsigned int reg2, int lid);
326void uasm_il_bnez(u32 **p, struct uasm_reloc **r, unsigned int reg, int lid);
327
328#endif /* __ASM_UASM_H */