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/arch/mips/include/asm/uasm.h

http://github.com/mirrors/linux
C Header | 325 lines | 278 code | 32 blank | 15 comment | 4 complexity | fe5a4560ba33d1f2495dc3b0364310e9 MD5 | raw file
  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 (ralf@linux-mips.org)
  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(_nor);
149Ip_u3u1u2(_or);
150Ip_u2u1u3(_ori);
151Ip_u2s3u1(_pref);
152Ip_0(_rfe);
153Ip_u2u1u3(_rotr);
154Ip_u2s3u1(_sb);
155Ip_u2s3u1(_sc);
156Ip_u2s3u1(_scd);
157Ip_u2s3u1(_sd);
158Ip_u3u1u2(_seleqz);
159Ip_u3u1u2(_selnez);
160Ip_u2s3u1(_sh);
161Ip_u2u1u3(_sll);
162Ip_u3u2u1(_sllv);
163Ip_s3s1s2(_slt);
164Ip_u2u1s3(_slti);
165Ip_u2u1s3(_sltiu);
166Ip_u3u1u2(_sltu);
167Ip_u2u1u3(_sra);
168Ip_u3u2u1(_srav);
169Ip_u2u1u3(_srl);
170Ip_u3u2u1(_srlv);
171Ip_u3u1u2(_subu);
172Ip_u2s3u1(_sw);
173Ip_u1(_sync);
174Ip_u1(_syscall);
175Ip_0(_tlbp);
176Ip_0(_tlbr);
177Ip_0(_tlbwi);
178Ip_0(_tlbwr);
179Ip_u1(_wait);
180Ip_u2u1(_wsbh);
181Ip_u3u1u2(_xor);
182Ip_u2u1u3(_xori);
183Ip_u2u1(_yield);
184Ip_u1u2(_ldpte);
185Ip_u2u1u3(_lddir);
186
187/* Handle labels. */
188struct uasm_label {
189	u32 *addr;
190	int lab;
191};
192
193void uasm_build_label(struct uasm_label **lab, u32 *addr,
194			int lid);
195#ifdef CONFIG_64BIT
196int uasm_in_compat_space_p(long addr);
197#endif
198int uasm_rel_hi(long val);
199int uasm_rel_lo(long val);
200void UASM_i_LA_mostly(u32 **buf, unsigned int rs, long addr);
201void UASM_i_LA(u32 **buf, unsigned int rs, long addr);
202
203#define UASM_L_LA(lb)							\
204static inline void uasm_l##lb(struct uasm_label **lab, u32 *addr)	\
205{									\
206	uasm_build_label(lab, addr, label##lb);				\
207}
208
209/* convenience macros for instructions */
210#ifdef CONFIG_64BIT
211# define UASM_i_ADDIU(buf, rs, rt, val) uasm_i_daddiu(buf, rs, rt, val)
212# define UASM_i_ADDU(buf, rs, rt, rd) uasm_i_daddu(buf, rs, rt, rd)
213# define UASM_i_LL(buf, rs, rt, off) uasm_i_lld(buf, rs, rt, off)
214# define UASM_i_LW(buf, rs, rt, off) uasm_i_ld(buf, rs, rt, off)
215# define UASM_i_LWX(buf, rs, rt, rd) uasm_i_ldx(buf, rs, rt, rd)
216# define UASM_i_MFC0(buf, rt, rd...) uasm_i_dmfc0(buf, rt, rd)
217# define UASM_i_MTC0(buf, rt, rd...) uasm_i_dmtc0(buf, rt, rd)
218# define UASM_i_ROTR(buf, rs, rt, sh) uasm_i_drotr(buf, rs, rt, sh)
219# define UASM_i_SC(buf, rs, rt, off) uasm_i_scd(buf, rs, rt, off)
220# define UASM_i_SLL(buf, rs, rt, sh) uasm_i_dsll(buf, rs, rt, sh)
221# define UASM_i_SRA(buf, rs, rt, sh) uasm_i_dsra(buf, rs, rt, sh)
222# define UASM_i_SRL(buf, rs, rt, sh) uasm_i_dsrl(buf, rs, rt, sh)
223# define UASM_i_SRL_SAFE(buf, rs, rt, sh) uasm_i_dsrl_safe(buf, rs, rt, sh)
224# define UASM_i_SUBU(buf, rs, rt, rd) uasm_i_dsubu(buf, rs, rt, rd)
225# define UASM_i_SW(buf, rs, rt, off) uasm_i_sd(buf, rs, rt, off)
226#else
227# define UASM_i_ADDIU(buf, rs, rt, val) uasm_i_addiu(buf, rs, rt, val)
228# define UASM_i_ADDU(buf, rs, rt, rd) uasm_i_addu(buf, rs, rt, rd)
229# define UASM_i_LL(buf, rs, rt, off) uasm_i_ll(buf, rs, rt, off)
230# define UASM_i_LW(buf, rs, rt, off) uasm_i_lw(buf, rs, rt, off)
231# define UASM_i_LWX(buf, rs, rt, rd) uasm_i_lwx(buf, rs, rt, rd)
232# define UASM_i_MFC0(buf, rt, rd...) uasm_i_mfc0(buf, rt, rd)
233# define UASM_i_MTC0(buf, rt, rd...) uasm_i_mtc0(buf, rt, rd)
234# define UASM_i_ROTR(buf, rs, rt, sh) uasm_i_rotr(buf, rs, rt, sh)
235# define UASM_i_SC(buf, rs, rt, off) uasm_i_sc(buf, rs, rt, off)
236# define UASM_i_SLL(buf, rs, rt, sh) uasm_i_sll(buf, rs, rt, sh)
237# define UASM_i_SRA(buf, rs, rt, sh) uasm_i_sra(buf, rs, rt, sh)
238# define UASM_i_SRL(buf, rs, rt, sh) uasm_i_srl(buf, rs, rt, sh)
239# define UASM_i_SRL_SAFE(buf, rs, rt, sh) uasm_i_srl(buf, rs, rt, sh)
240# define UASM_i_SUBU(buf, rs, rt, rd) uasm_i_subu(buf, rs, rt, rd)
241# define UASM_i_SW(buf, rs, rt, off) uasm_i_sw(buf, rs, rt, off)
242#endif
243
244#define uasm_i_b(buf, off) uasm_i_beq(buf, 0, 0, off)
245#define uasm_i_beqz(buf, rs, off) uasm_i_beq(buf, rs, 0, off)
246#define uasm_i_beqzl(buf, rs, off) uasm_i_beql(buf, rs, 0, off)
247#define uasm_i_bnez(buf, rs, off) uasm_i_bne(buf, rs, 0, off)
248#define uasm_i_bnezl(buf, rs, off) uasm_i_bnel(buf, rs, 0, off)
249#define uasm_i_ehb(buf) uasm_i_sll(buf, 0, 0, 3)
250#define uasm_i_move(buf, a, b) UASM_i_ADDU(buf, a, 0, b)
251#define uasm_i_nop(buf) uasm_i_sll(buf, 0, 0, 0)
252#define uasm_i_ssnop(buf) uasm_i_sll(buf, 0, 0, 1)
253
254static inline void uasm_i_drotr_safe(u32 **p, unsigned int a1,
255				     unsigned int a2, unsigned int a3)
256{
257	if (a3 < 32)
258		uasm_i_drotr(p, a1, a2, a3);
259	else
260		uasm_i_drotr32(p, a1, a2, a3 - 32);
261}
262
263static inline void uasm_i_dsll_safe(u32 **p, unsigned int a1,
264				    unsigned int a2, unsigned int a3)
265{
266	if (a3 < 32)
267		uasm_i_dsll(p, a1, a2, a3);
268	else
269		uasm_i_dsll32(p, a1, a2, a3 - 32);
270}
271
272static inline void uasm_i_dsrl_safe(u32 **p, unsigned int a1,
273				    unsigned int a2, unsigned int a3)
274{
275	if (a3 < 32)
276		uasm_i_dsrl(p, a1, a2, a3);
277	else
278		uasm_i_dsrl32(p, a1, a2, a3 - 32);
279}
280
281static inline void uasm_i_dsra_safe(u32 **p, unsigned int a1,
282				    unsigned int a2, unsigned int a3)
283{
284	if (a3 < 32)
285		uasm_i_dsra(p, a1, a2, a3);
286	else
287		uasm_i_dsra32(p, a1, a2, a3 - 32);
288}
289
290/* Handle relocations. */
291struct uasm_reloc {
292	u32 *addr;
293	unsigned int type;
294	int lab;
295};
296
297/* This is zero so we can use zeroed label arrays. */
298#define UASM_LABEL_INVALID 0
299
300void uasm_r_mips_pc16(struct uasm_reloc **rel, u32 *addr, int lid);
301void uasm_resolve_relocs(struct uasm_reloc *rel, struct uasm_label *lab);
302void uasm_move_relocs(struct uasm_reloc *rel, u32 *first, u32 *end, long off);
303void uasm_move_labels(struct uasm_label *lab, u32 *first, u32 *end, long off);
304void uasm_copy_handler(struct uasm_reloc *rel, struct uasm_label *lab,
305	u32 *first, u32 *end, u32 *target);
306int uasm_insn_has_bdelay(struct uasm_reloc *rel, u32 *addr);
307
308/* Convenience functions for labeled branches. */
309void uasm_il_b(u32 **p, struct uasm_reloc **r, int lid);
310void uasm_il_bbit0(u32 **p, struct uasm_reloc **r, unsigned int reg,
311		   unsigned int bit, int lid);
312void uasm_il_bbit1(u32 **p, struct uasm_reloc **r, unsigned int reg,
313		   unsigned int bit, int lid);
314void uasm_il_beq(u32 **p, struct uasm_reloc **r, unsigned int r1,
315		 unsigned int r2, int lid);
316void uasm_il_beqz(u32 **p, struct uasm_reloc **r, unsigned int reg, int lid);
317void uasm_il_beqzl(u32 **p, struct uasm_reloc **r, unsigned int reg, int lid);
318void uasm_il_bgezl(u32 **p, struct uasm_reloc **r, unsigned int reg, int lid);
319void uasm_il_bgez(u32 **p, struct uasm_reloc **r, unsigned int reg, int lid);
320void uasm_il_bltz(u32 **p, struct uasm_reloc **r, unsigned int reg, int lid);
321void uasm_il_bne(u32 **p, struct uasm_reloc **r, unsigned int reg1,
322		 unsigned int reg2, int lid);
323void uasm_il_bnez(u32 **p, struct uasm_reloc **r, unsigned int reg, int lid);
324
325#endif /* __ASM_UASM_H */