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authorThiemo Seufer <ths@networkno.de>2008-01-28 15:05:38 -0500
committerRalf Baechle <ralf@linux-mips.org>2008-02-01 09:48:44 -0500
commite30ec4525d4731d828a754823a83a3d6b50bb230 (patch)
treeef6a959281b2d9eca14d4542e4facda782503a0c /arch
parenta055917e1b4ad337c293205377277ffc78c69c57 (diff)
[MIPS] Split the micro-assembler from tlbex.c.
This patch moves the micro-assembler in a separate implementation, as it is useful for further run-time optimizations. The only change in behaviour is cutting down printk noise at kernel startup time. Checkpatch complains about macro parameters which aren't protected by parentheses. I believe this is a flaw in checkpatch, the paste operator used in those macros won't work with parenthesised parameters. Signed-off-by: Thiemo Seufer <ths@networkno.de> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch')
-rw-r--r--arch/mips/mm/Makefile3
-rw-r--r--arch/mips/mm/tlbex.c1300
-rw-r--r--arch/mips/mm/uasm.c576
-rw-r--r--arch/mips/mm/uasm.h192
4 files changed, 1111 insertions, 960 deletions
diff --git a/arch/mips/mm/Makefile b/arch/mips/mm/Makefile
index 32fd5db95774..c6f832e0f41c 100644
--- a/arch/mips/mm/Makefile
+++ b/arch/mips/mm/Makefile
@@ -3,7 +3,8 @@
3# 3#
4 4
5obj-y += cache.o dma-default.o extable.o fault.o \ 5obj-y += cache.o dma-default.o extable.o fault.o \
6 init.o pgtable.o tlbex.o tlbex-fault.o 6 init.o pgtable.o tlbex.o tlbex-fault.o \
7 uasm.o
7 8
8obj-$(CONFIG_32BIT) += ioremap.o pgtable-32.o 9obj-$(CONFIG_32BIT) += ioremap.o pgtable-32.o
9obj-$(CONFIG_64BIT) += pgtable-64.o 10obj-$(CONFIG_64BIT) += pgtable-64.o
diff --git a/arch/mips/mm/tlbex.c b/arch/mips/mm/tlbex.c
index d026302e0ecc..218a6cc415e8 100644
--- a/arch/mips/mm/tlbex.c
+++ b/arch/mips/mm/tlbex.c
@@ -5,7 +5,7 @@
5 * 5 *
6 * Synthesize TLB refill handlers at runtime. 6 * Synthesize TLB refill handlers at runtime.
7 * 7 *
8 * Copyright (C) 2004,2005,2006 by Thiemo Seufer 8 * Copyright (C) 2004, 2005, 2006, 2008 Thiemo Seufer
9 * Copyright (C) 2005, 2007 Maciej W. Rozycki 9 * Copyright (C) 2005, 2007 Maciej W. Rozycki
10 * Copyright (C) 2006 Ralf Baechle (ralf@linux-mips.org) 10 * Copyright (C) 2006 Ralf Baechle (ralf@linux-mips.org)
11 * 11 *
@@ -24,12 +24,11 @@
24#include <linux/string.h> 24#include <linux/string.h>
25#include <linux/init.h> 25#include <linux/init.h>
26 26
27#include <asm/bugs.h>
28#include <asm/mmu_context.h> 27#include <asm/mmu_context.h>
29#include <asm/inst.h>
30#include <asm/elf.h>
31#include <asm/war.h> 28#include <asm/war.h>
32 29
30#include "uasm.h"
31
33static inline int r45k_bvahwbug(void) 32static inline int r45k_bvahwbug(void)
34{ 33{
35 /* XXX: We should probe for the presence of this bug, but we don't. */ 34 /* XXX: We should probe for the presence of this bug, but we don't. */
@@ -67,371 +66,9 @@ static int __init m4kc_tlbp_war(void)
67 (PRID_COMP_MIPS | PRID_IMP_4KC); 66 (PRID_COMP_MIPS | PRID_IMP_4KC);
68} 67}
69 68
70/* 69/* Handle labels (which must be positive integers). */
71 * A little micro-assembler, intended for TLB refill handler
72 * synthesizing. It is intentionally kept simple, does only support
73 * a subset of instructions, and does not try to hide pipeline effects
74 * like branch delay slots.
75 */
76
77enum fields
78{
79 RS = 0x001,
80 RT = 0x002,
81 RD = 0x004,
82 RE = 0x008,
83 SIMM = 0x010,
84 UIMM = 0x020,
85 BIMM = 0x040,
86 JIMM = 0x080,
87 FUNC = 0x100,
88 SET = 0x200
89};
90
91#define OP_MASK 0x3f
92#define OP_SH 26
93#define RS_MASK 0x1f
94#define RS_SH 21
95#define RT_MASK 0x1f
96#define RT_SH 16
97#define RD_MASK 0x1f
98#define RD_SH 11
99#define RE_MASK 0x1f
100#define RE_SH 6
101#define IMM_MASK 0xffff
102#define IMM_SH 0
103#define JIMM_MASK 0x3ffffff
104#define JIMM_SH 0
105#define FUNC_MASK 0x3f
106#define FUNC_SH 0
107#define SET_MASK 0x7
108#define SET_SH 0
109
110enum opcode {
111 insn_invalid,
112 insn_addu, insn_addiu, insn_and, insn_andi, insn_beq,
113 insn_beql, insn_bgez, insn_bgezl, insn_bltz, insn_bltzl,
114 insn_bne, insn_daddu, insn_daddiu, insn_dmfc0, insn_dmtc0,
115 insn_dsll, insn_dsll32, insn_dsra, insn_dsrl, insn_dsrl32,
116 insn_dsubu, insn_eret, insn_j, insn_jal, insn_jr, insn_ld,
117 insn_ll, insn_lld, insn_lui, insn_lw, insn_mfc0, insn_mtc0,
118 insn_ori, insn_rfe, insn_sc, insn_scd, insn_sd, insn_sll,
119 insn_sra, insn_srl, insn_subu, insn_sw, insn_tlbp, insn_tlbwi,
120 insn_tlbwr, insn_xor, insn_xori
121};
122
123struct insn {
124 enum opcode opcode;
125 u32 match;
126 enum fields fields;
127};
128
129/* This macro sets the non-variable bits of an instruction. */
130#define M(a, b, c, d, e, f) \
131 ((a) << OP_SH \
132 | (b) << RS_SH \
133 | (c) << RT_SH \
134 | (d) << RD_SH \
135 | (e) << RE_SH \
136 | (f) << FUNC_SH)
137
138static struct insn insn_table[] __initdata = {
139 { insn_addiu, M(addiu_op, 0, 0, 0, 0, 0), RS | RT | SIMM },
140 { insn_addu, M(spec_op, 0, 0, 0, 0, addu_op), RS | RT | RD },
141 { insn_and, M(spec_op, 0, 0, 0, 0, and_op), RS | RT | RD },
142 { insn_andi, M(andi_op, 0, 0, 0, 0, 0), RS | RT | UIMM },
143 { insn_beq, M(beq_op, 0, 0, 0, 0, 0), RS | RT | BIMM },
144 { insn_beql, M(beql_op, 0, 0, 0, 0, 0), RS | RT | BIMM },
145 { insn_bgez, M(bcond_op, 0, bgez_op, 0, 0, 0), RS | BIMM },
146 { insn_bgezl, M(bcond_op, 0, bgezl_op, 0, 0, 0), RS | BIMM },
147 { insn_bltz, M(bcond_op, 0, bltz_op, 0, 0, 0), RS | BIMM },
148 { insn_bltzl, M(bcond_op, 0, bltzl_op, 0, 0, 0), RS | BIMM },
149 { insn_bne, M(bne_op, 0, 0, 0, 0, 0), RS | RT | BIMM },
150 { insn_daddiu, M(daddiu_op, 0, 0, 0, 0, 0), RS | RT | SIMM },
151 { insn_daddu, M(spec_op, 0, 0, 0, 0, daddu_op), RS | RT | RD },
152 { insn_dmfc0, M(cop0_op, dmfc_op, 0, 0, 0, 0), RT | RD | SET},
153 { insn_dmtc0, M(cop0_op, dmtc_op, 0, 0, 0, 0), RT | RD | SET},
154 { insn_dsll, M(spec_op, 0, 0, 0, 0, dsll_op), RT | RD | RE },
155 { insn_dsll32, M(spec_op, 0, 0, 0, 0, dsll32_op), RT | RD | RE },
156 { insn_dsra, M(spec_op, 0, 0, 0, 0, dsra_op), RT | RD | RE },
157 { insn_dsrl, M(spec_op, 0, 0, 0, 0, dsrl_op), RT | RD | RE },
158 { insn_dsrl32, M(spec_op, 0, 0, 0, 0, dsrl32_op), RT | RD | RE },
159 { insn_dsubu, M(spec_op, 0, 0, 0, 0, dsubu_op), RS | RT | RD },
160 { insn_eret, M(cop0_op, cop_op, 0, 0, 0, eret_op), 0 },
161 { insn_j, M(j_op, 0, 0, 0, 0, 0), JIMM },
162 { insn_jal, M(jal_op, 0, 0, 0, 0, 0), JIMM },
163 { insn_jr, M(spec_op, 0, 0, 0, 0, jr_op), RS },
164 { insn_ld, M(ld_op, 0, 0, 0, 0, 0), RS | RT | SIMM },
165 { insn_ll, M(ll_op, 0, 0, 0, 0, 0), RS | RT | SIMM },
166 { insn_lld, M(lld_op, 0, 0, 0, 0, 0), RS | RT | SIMM },
167 { insn_lui, M(lui_op, 0, 0, 0, 0, 0), RT | SIMM },
168 { insn_lw, M(lw_op, 0, 0, 0, 0, 0), RS | RT | SIMM },
169 { insn_mfc0, M(cop0_op, mfc_op, 0, 0, 0, 0), RT | RD | SET},
170 { insn_mtc0, M(cop0_op, mtc_op, 0, 0, 0, 0), RT | RD | SET},
171 { insn_ori, M(ori_op, 0, 0, 0, 0, 0), RS | RT | UIMM },
172 { insn_rfe, M(cop0_op, cop_op, 0, 0, 0, rfe_op), 0 },
173 { insn_sc, M(sc_op, 0, 0, 0, 0, 0), RS | RT | SIMM },
174 { insn_scd, M(scd_op, 0, 0, 0, 0, 0), RS | RT | SIMM },
175 { insn_sd, M(sd_op, 0, 0, 0, 0, 0), RS | RT | SIMM },
176 { insn_sll, M(spec_op, 0, 0, 0, 0, sll_op), RT | RD | RE },
177 { insn_sra, M(spec_op, 0, 0, 0, 0, sra_op), RT | RD | RE },
178 { insn_srl, M(spec_op, 0, 0, 0, 0, srl_op), RT | RD | RE },
179 { insn_subu, M(spec_op, 0, 0, 0, 0, subu_op), RS | RT | RD },
180 { insn_sw, M(sw_op, 0, 0, 0, 0, 0), RS | RT | SIMM },
181 { insn_tlbp, M(cop0_op, cop_op, 0, 0, 0, tlbp_op), 0 },
182 { insn_tlbwi, M(cop0_op, cop_op, 0, 0, 0, tlbwi_op), 0 },
183 { insn_tlbwr, M(cop0_op, cop_op, 0, 0, 0, tlbwr_op), 0 },
184 { insn_xor, M(spec_op, 0, 0, 0, 0, xor_op), RS | RT | RD },
185 { insn_xori, M(xori_op, 0, 0, 0, 0, 0), RS | RT | UIMM },
186 { insn_invalid, 0, 0 }
187};
188
189#undef M
190
191static u32 __init build_rs(u32 arg)
192{
193 if (arg & ~RS_MASK)
194 printk(KERN_WARNING "TLB synthesizer field overflow\n");
195
196 return (arg & RS_MASK) << RS_SH;
197}
198
199static u32 __init build_rt(u32 arg)
200{
201 if (arg & ~RT_MASK)
202 printk(KERN_WARNING "TLB synthesizer field overflow\n");
203
204 return (arg & RT_MASK) << RT_SH;
205}
206
207static u32 __init build_rd(u32 arg)
208{
209 if (arg & ~RD_MASK)
210 printk(KERN_WARNING "TLB synthesizer field overflow\n");
211
212 return (arg & RD_MASK) << RD_SH;
213}
214
215static u32 __init build_re(u32 arg)
216{
217 if (arg & ~RE_MASK)
218 printk(KERN_WARNING "TLB synthesizer field overflow\n");
219
220 return (arg & RE_MASK) << RE_SH;
221}
222
223static u32 __init build_simm(s32 arg)
224{
225 if (arg > 0x7fff || arg < -0x8000)
226 printk(KERN_WARNING "TLB synthesizer field overflow\n");
227
228 return arg & 0xffff;
229}
230
231static u32 __init build_uimm(u32 arg)
232{
233 if (arg & ~IMM_MASK)
234 printk(KERN_WARNING "TLB synthesizer field overflow\n");
235
236 return arg & IMM_MASK;
237}
238
239static u32 __init build_bimm(s32 arg)
240{
241 if (arg > 0x1ffff || arg < -0x20000)
242 printk(KERN_WARNING "TLB synthesizer field overflow\n");
243
244 if (arg & 0x3)
245 printk(KERN_WARNING "Invalid TLB synthesizer branch target\n");
246
247 return ((arg < 0) ? (1 << 15) : 0) | ((arg >> 2) & 0x7fff);
248}
249
250static u32 __init build_jimm(u32 arg)
251{
252 if (arg & ~((JIMM_MASK) << 2))
253 printk(KERN_WARNING "TLB synthesizer field overflow\n");
254
255 return (arg >> 2) & JIMM_MASK;
256}
257
258static u32 __init build_func(u32 arg)
259{
260 if (arg & ~FUNC_MASK)
261 printk(KERN_WARNING "TLB synthesizer field overflow\n");
262
263 return arg & FUNC_MASK;
264}
265
266static u32 __init build_set(u32 arg)
267{
268 if (arg & ~SET_MASK)
269 printk(KERN_WARNING "TLB synthesizer field overflow\n");
270
271 return arg & SET_MASK;
272}
273
274/*
275 * The order of opcode arguments is implicitly left to right,
276 * starting with RS and ending with FUNC or IMM.
277 */
278static void __init build_insn(u32 **buf, enum opcode opc, ...)
279{
280 struct insn *ip = NULL;
281 unsigned int i;
282 va_list ap;
283 u32 op;
284
285 for (i = 0; insn_table[i].opcode != insn_invalid; i++)
286 if (insn_table[i].opcode == opc) {
287 ip = &insn_table[i];
288 break;
289 }
290
291 if (!ip || (opc == insn_daddiu && r4k_daddiu_bug()))
292 panic("Unsupported TLB synthesizer instruction %d", opc);
293
294 op = ip->match;
295 va_start(ap, opc);
296 if (ip->fields & RS) op |= build_rs(va_arg(ap, u32));
297 if (ip->fields & RT) op |= build_rt(va_arg(ap, u32));
298 if (ip->fields & RD) op |= build_rd(va_arg(ap, u32));
299 if (ip->fields & RE) op |= build_re(va_arg(ap, u32));
300 if (ip->fields & SIMM) op |= build_simm(va_arg(ap, s32));
301 if (ip->fields & UIMM) op |= build_uimm(va_arg(ap, u32));
302 if (ip->fields & BIMM) op |= build_bimm(va_arg(ap, s32));
303 if (ip->fields & JIMM) op |= build_jimm(va_arg(ap, u32));
304 if (ip->fields & FUNC) op |= build_func(va_arg(ap, u32));
305 if (ip->fields & SET) op |= build_set(va_arg(ap, u32));
306 va_end(ap);
307
308 **buf = op;
309 (*buf)++;
310}
311
312#define I_u1u2u3(op) \
313 static void __init __maybe_unused i##op(u32 **buf, unsigned int a, \
314 unsigned int b, unsigned int c) \
315 { \
316 build_insn(buf, insn##op, a, b, c); \
317 }
318
319#define I_u2u1u3(op) \
320 static void __init __maybe_unused i##op(u32 **buf, unsigned int a, \
321 unsigned int b, unsigned int c) \
322 { \
323 build_insn(buf, insn##op, b, a, c); \
324 }
325
326#define I_u3u1u2(op) \
327 static void __init __maybe_unused i##op(u32 **buf, unsigned int a, \
328 unsigned int b, unsigned int c) \
329 { \
330 build_insn(buf, insn##op, b, c, a); \
331 }
332
333#define I_u1u2s3(op) \
334 static void __init __maybe_unused i##op(u32 **buf, unsigned int a, \
335 unsigned int b, signed int c) \
336 { \
337 build_insn(buf, insn##op, a, b, c); \
338 }
339
340#define I_u2s3u1(op) \
341 static void __init __maybe_unused i##op(u32 **buf, unsigned int a, \
342 signed int b, unsigned int c) \
343 { \
344 build_insn(buf, insn##op, c, a, b); \
345 }
346
347#define I_u2u1s3(op) \
348 static void __init __maybe_unused i##op(u32 **buf, unsigned int a, \
349 unsigned int b, signed int c) \
350 { \
351 build_insn(buf, insn##op, b, a, c); \
352 }
353
354#define I_u1u2(op) \
355 static void __init __maybe_unused i##op(u32 **buf, unsigned int a, \
356 unsigned int b) \
357 { \
358 build_insn(buf, insn##op, a, b); \
359 }
360
361#define I_u1s2(op) \
362 static void __init __maybe_unused i##op(u32 **buf, unsigned int a, \
363 signed int b) \
364 { \
365 build_insn(buf, insn##op, a, b); \
366 }
367
368#define I_u1(op) \
369 static void __init __maybe_unused i##op(u32 **buf, unsigned int a) \
370 { \
371 build_insn(buf, insn##op, a); \
372 }
373
374#define I_0(op) \
375 static void __init __maybe_unused i##op(u32 **buf) \
376 { \
377 build_insn(buf, insn##op); \
378 }
379
380I_u2u1s3(_addiu);
381I_u3u1u2(_addu);
382I_u2u1u3(_andi);
383I_u3u1u2(_and);
384I_u1u2s3(_beq);
385I_u1u2s3(_beql);
386I_u1s2(_bgez);
387I_u1s2(_bgezl);
388I_u1s2(_bltz);
389I_u1s2(_bltzl);
390I_u1u2s3(_bne);
391I_u1u2u3(_dmfc0);
392I_u1u2u3(_dmtc0);
393I_u2u1s3(_daddiu);
394I_u3u1u2(_daddu);
395I_u2u1u3(_dsll);
396I_u2u1u3(_dsll32);
397I_u2u1u3(_dsra);
398I_u2u1u3(_dsrl);
399I_u2u1u3(_dsrl32);
400I_u3u1u2(_dsubu);
401I_0(_eret);
402I_u1(_j);
403I_u1(_jal);
404I_u1(_jr);
405I_u2s3u1(_ld);
406I_u2s3u1(_ll);
407I_u2s3u1(_lld);
408I_u1s2(_lui);
409I_u2s3u1(_lw);
410I_u1u2u3(_mfc0);
411I_u1u2u3(_mtc0);
412I_u2u1u3(_ori);
413I_0(_rfe);
414I_u2s3u1(_sc);
415I_u2s3u1(_scd);
416I_u2s3u1(_sd);
417I_u2u1u3(_sll);
418I_u2u1u3(_sra);
419I_u2u1u3(_srl);
420I_u3u1u2(_subu);
421I_u2s3u1(_sw);
422I_0(_tlbp);
423I_0(_tlbwi);
424I_0(_tlbwr);
425I_u3u1u2(_xor)
426I_u2u1u3(_xori);
427
428/*
429 * handling labels
430 */
431
432enum label_id { 70enum label_id {
433 label_invalid, 71 label_second_part = 1,
434 label_second_part,
435 label_leave, 72 label_leave,
436#ifdef MODULE_START 73#ifdef MODULE_START
437 label_module_alloc, 74 label_module_alloc,
@@ -447,278 +84,20 @@ enum label_id {
447 label_r3000_write_probe_fail, 84 label_r3000_write_probe_fail,
448}; 85};
449 86
450struct label { 87UASM_L_LA(_second_part)
451 u32 *addr; 88UASM_L_LA(_leave)
452 enum label_id lab;
453};
454
455static void __init build_label(struct label **lab, u32 *addr,
456 enum label_id l)
457{
458 (*lab)->addr = addr;
459 (*lab)->lab = l;
460 (*lab)++;
461}
462
463#define L_LA(lb) \
464 static inline void __init l##lb(struct label **lab, u32 *addr) \
465 { \
466 build_label(lab, addr, label##lb); \
467 }
468
469L_LA(_second_part)
470L_LA(_leave)
471#ifdef MODULE_START 89#ifdef MODULE_START
472L_LA(_module_alloc) 90UASM_L_LA(_module_alloc)
473#endif
474L_LA(_vmalloc)
475L_LA(_vmalloc_done)
476L_LA(_tlbw_hazard)
477L_LA(_split)
478L_LA(_nopage_tlbl)
479L_LA(_nopage_tlbs)
480L_LA(_nopage_tlbm)
481L_LA(_smp_pgtable_change)
482L_LA(_r3000_write_probe_fail)
483
484/* convenience macros for instructions */
485#ifdef CONFIG_64BIT
486# define i_LW(buf, rs, rt, off) i_ld(buf, rs, rt, off)
487# define i_SW(buf, rs, rt, off) i_sd(buf, rs, rt, off)
488# define i_SLL(buf, rs, rt, sh) i_dsll(buf, rs, rt, sh)
489# define i_SRA(buf, rs, rt, sh) i_dsra(buf, rs, rt, sh)
490# define i_SRL(buf, rs, rt, sh) i_dsrl(buf, rs, rt, sh)
491# define i_MFC0(buf, rt, rd...) i_dmfc0(buf, rt, rd)
492# define i_MTC0(buf, rt, rd...) i_dmtc0(buf, rt, rd)
493# define i_ADDIU(buf, rs, rt, val) i_daddiu(buf, rs, rt, val)
494# define i_ADDU(buf, rs, rt, rd) i_daddu(buf, rs, rt, rd)
495# define i_SUBU(buf, rs, rt, rd) i_dsubu(buf, rs, rt, rd)
496# define i_LL(buf, rs, rt, off) i_lld(buf, rs, rt, off)
497# define i_SC(buf, rs, rt, off) i_scd(buf, rs, rt, off)
498#else
499# define i_LW(buf, rs, rt, off) i_lw(buf, rs, rt, off)
500# define i_SW(buf, rs, rt, off) i_sw(buf, rs, rt, off)
501# define i_SLL(buf, rs, rt, sh) i_sll(buf, rs, rt, sh)
502# define i_SRA(buf, rs, rt, sh) i_sra(buf, rs, rt, sh)
503# define i_SRL(buf, rs, rt, sh) i_srl(buf, rs, rt, sh)
504# define i_MFC0(buf, rt, rd...) i_mfc0(buf, rt, rd)
505# define i_MTC0(buf, rt, rd...) i_mtc0(buf, rt, rd)
506# define i_ADDIU(buf, rs, rt, val) i_addiu(buf, rs, rt, val)
507# define i_ADDU(buf, rs, rt, rd) i_addu(buf, rs, rt, rd)
508# define i_SUBU(buf, rs, rt, rd) i_subu(buf, rs, rt, rd)
509# define i_LL(buf, rs, rt, off) i_ll(buf, rs, rt, off)
510# define i_SC(buf, rs, rt, off) i_sc(buf, rs, rt, off)
511#endif
512
513#define i_b(buf, off) i_beq(buf, 0, 0, off)
514#define i_beqz(buf, rs, off) i_beq(buf, rs, 0, off)
515#define i_beqzl(buf, rs, off) i_beql(buf, rs, 0, off)
516#define i_bnez(buf, rs, off) i_bne(buf, rs, 0, off)
517#define i_bnezl(buf, rs, off) i_bnel(buf, rs, 0, off)
518#define i_move(buf, a, b) i_ADDU(buf, a, 0, b)
519#define i_nop(buf) i_sll(buf, 0, 0, 0)
520#define i_ssnop(buf) i_sll(buf, 0, 0, 1)
521#define i_ehb(buf) i_sll(buf, 0, 0, 3)
522
523static int __init __maybe_unused in_compat_space_p(long addr)
524{
525 /* Is this address in 32bit compat space? */
526#ifdef CONFIG_64BIT
527 return (((addr) & 0xffffffff00000000L) == 0xffffffff00000000L);
528#else
529 return 1;
530#endif 91#endif
531} 92UASM_L_LA(_vmalloc)
532 93UASM_L_LA(_vmalloc_done)
533static int __init __maybe_unused rel_highest(long val) 94UASM_L_LA(_tlbw_hazard)
534{ 95UASM_L_LA(_split)
535#ifdef CONFIG_64BIT 96UASM_L_LA(_nopage_tlbl)
536 return ((((val + 0x800080008000L) >> 48) & 0xffff) ^ 0x8000) - 0x8000; 97UASM_L_LA(_nopage_tlbs)
537#else 98UASM_L_LA(_nopage_tlbm)
538 return 0; 99UASM_L_LA(_smp_pgtable_change)
539#endif 100UASM_L_LA(_r3000_write_probe_fail)
540}
541
542static int __init __maybe_unused rel_higher(long val)
543{
544#ifdef CONFIG_64BIT
545 return ((((val + 0x80008000L) >> 32) & 0xffff) ^ 0x8000) - 0x8000;
546#else
547 return 0;
548#endif
549}
550
551static int __init rel_hi(long val)
552{
553 return ((((val + 0x8000L) >> 16) & 0xffff) ^ 0x8000) - 0x8000;
554}
555
556static int __init rel_lo(long val)
557{
558 return ((val & 0xffff) ^ 0x8000) - 0x8000;
559}
560
561static void __init i_LA_mostly(u32 **buf, unsigned int rs, long addr)
562{
563 if (!in_compat_space_p(addr)) {
564 i_lui(buf, rs, rel_highest(addr));
565 if (rel_higher(addr))
566 i_daddiu(buf, rs, rs, rel_higher(addr));
567 if (rel_hi(addr)) {
568 i_dsll(buf, rs, rs, 16);
569 i_daddiu(buf, rs, rs, rel_hi(addr));
570 i_dsll(buf, rs, rs, 16);
571 } else
572 i_dsll32(buf, rs, rs, 0);
573 } else
574 i_lui(buf, rs, rel_hi(addr));
575}
576
577static void __init __maybe_unused i_LA(u32 **buf, unsigned int rs, long addr)
578{
579 i_LA_mostly(buf, rs, addr);
580 if (rel_lo(addr)) {
581 if (!in_compat_space_p(addr))
582 i_daddiu(buf, rs, rs, rel_lo(addr));
583 else
584 i_addiu(buf, rs, rs, rel_lo(addr));
585 }
586}
587
588/*
589 * handle relocations
590 */
591
592struct reloc {
593 u32 *addr;
594 unsigned int type;
595 enum label_id lab;
596};
597
598static void __init r_mips_pc16(struct reloc **rel, u32 *addr,
599 enum label_id l)
600{
601 (*rel)->addr = addr;
602 (*rel)->type = R_MIPS_PC16;
603 (*rel)->lab = l;
604 (*rel)++;
605}
606
607static inline void __resolve_relocs(struct reloc *rel, struct label *lab)
608{
609 long laddr = (long)lab->addr;
610 long raddr = (long)rel->addr;
611
612 switch (rel->type) {
613 case R_MIPS_PC16:
614 *rel->addr |= build_bimm(laddr - (raddr + 4));
615 break;
616
617 default:
618 panic("Unsupported TLB synthesizer relocation %d",
619 rel->type);
620 }
621}
622
623static void __init resolve_relocs(struct reloc *rel, struct label *lab)
624{
625 struct label *l;
626
627 for (; rel->lab != label_invalid; rel++)
628 for (l = lab; l->lab != label_invalid; l++)
629 if (rel->lab == l->lab)
630 __resolve_relocs(rel, l);
631}
632
633static void __init move_relocs(struct reloc *rel, u32 *first, u32 *end,
634 long off)
635{
636 for (; rel->lab != label_invalid; rel++)
637 if (rel->addr >= first && rel->addr < end)
638 rel->addr += off;
639}
640
641static void __init move_labels(struct label *lab, u32 *first, u32 *end,
642 long off)
643{
644 for (; lab->lab != label_invalid; lab++)
645 if (lab->addr >= first && lab->addr < end)
646 lab->addr += off;
647}
648
649static void __init copy_handler(struct reloc *rel, struct label *lab,
650 u32 *first, u32 *end, u32 *target)
651{
652 long off = (long)(target - first);
653
654 memcpy(target, first, (end - first) * sizeof(u32));
655
656 move_relocs(rel, first, end, off);
657 move_labels(lab, first, end, off);
658}
659
660static int __init __maybe_unused insn_has_bdelay(struct reloc *rel,
661 u32 *addr)
662{
663 for (; rel->lab != label_invalid; rel++) {
664 if (rel->addr == addr
665 && (rel->type == R_MIPS_PC16
666 || rel->type == R_MIPS_26))
667 return 1;
668 }
669
670 return 0;
671}
672
673/* convenience functions for labeled branches */
674static void __init __maybe_unused
675 il_bltz(u32 **p, struct reloc **r, unsigned int reg, enum label_id l)
676{
677 r_mips_pc16(r, *p, l);
678 i_bltz(p, reg, 0);
679}
680
681static void __init __maybe_unused il_b(u32 **p, struct reloc **r,
682 enum label_id l)
683{
684 r_mips_pc16(r, *p, l);
685 i_b(p, 0);
686}
687
688static void __init il_beqz(u32 **p, struct reloc **r, unsigned int reg,
689 enum label_id l)
690{
691 r_mips_pc16(r, *p, l);
692 i_beqz(p, reg, 0);
693}
694
695static void __init __maybe_unused
696il_beqzl(u32 **p, struct reloc **r, unsigned int reg, enum label_id l)
697{
698 r_mips_pc16(r, *p, l);
699 i_beqzl(p, reg, 0);
700}
701
702static void __init il_bnez(u32 **p, struct reloc **r, unsigned int reg,
703 enum label_id l)
704{
705 r_mips_pc16(r, *p, l);
706 i_bnez(p, reg, 0);
707}
708
709static void __init il_bgezl(u32 **p, struct reloc **r, unsigned int reg,
710 enum label_id l)
711{
712 r_mips_pc16(r, *p, l);
713 i_bgezl(p, reg, 0);
714}
715
716static void __init __maybe_unused
717il_bgez(u32 **p, struct reloc **r, unsigned int reg, enum label_id l)
718{
719 r_mips_pc16(r, *p, l);
720 i_bgez(p, reg, 0);
721}
722 101
723/* 102/*
724 * For debug purposes. 103 * For debug purposes.
@@ -752,9 +131,9 @@ static inline void dump_handler(const u32 *handler, int count)
752#define C0_XCONTEXT 20, 0 131#define C0_XCONTEXT 20, 0
753 132
754#ifdef CONFIG_64BIT 133#ifdef CONFIG_64BIT
755# define GET_CONTEXT(buf, reg) i_MFC0(buf, reg, C0_XCONTEXT) 134# define GET_CONTEXT(buf, reg) UASM_i_MFC0(buf, reg, C0_XCONTEXT)
756#else 135#else
757# define GET_CONTEXT(buf, reg) i_MFC0(buf, reg, C0_CONTEXT) 136# define GET_CONTEXT(buf, reg) UASM_i_MFC0(buf, reg, C0_CONTEXT)
758#endif 137#endif
759 138
760/* The worst case length of the handler is around 18 instructions for 139/* The worst case length of the handler is around 18 instructions for
@@ -768,8 +147,8 @@ static inline void dump_handler(const u32 *handler, int count)
768static u32 tlb_handler[128] __initdata; 147static u32 tlb_handler[128] __initdata;
769 148
770/* simply assume worst case size for labels and relocs */ 149/* simply assume worst case size for labels and relocs */
771static struct label labels[128] __initdata; 150static struct uasm_label labels[128] __initdata;
772static struct reloc relocs[128] __initdata; 151static struct uasm_reloc relocs[128] __initdata;
773 152
774/* 153/*
775 * The R3000 TLB handler is simple. 154 * The R3000 TLB handler is simple.
@@ -782,29 +161,29 @@ static void __init build_r3000_tlb_refill_handler(void)
782 memset(tlb_handler, 0, sizeof(tlb_handler)); 161 memset(tlb_handler, 0, sizeof(tlb_handler));
783 p = tlb_handler; 162 p = tlb_handler;
784 163
785 i_mfc0(&p, K0, C0_BADVADDR); 164 uasm_i_mfc0(&p, K0, C0_BADVADDR);
786 i_lui(&p, K1, rel_hi(pgdc)); /* cp0 delay */ 165 uasm_i_lui(&p, K1, uasm_rel_hi(pgdc)); /* cp0 delay */
787 i_lw(&p, K1, rel_lo(pgdc), K1); 166 uasm_i_lw(&p, K1, uasm_rel_lo(pgdc), K1);
788 i_srl(&p, K0, K0, 22); /* load delay */ 167 uasm_i_srl(&p, K0, K0, 22); /* load delay */
789 i_sll(&p, K0, K0, 2); 168 uasm_i_sll(&p, K0, K0, 2);
790 i_addu(&p, K1, K1, K0); 169 uasm_i_addu(&p, K1, K1, K0);
791 i_mfc0(&p, K0, C0_CONTEXT); 170 uasm_i_mfc0(&p, K0, C0_CONTEXT);
792 i_lw(&p, K1, 0, K1); /* cp0 delay */ 171 uasm_i_lw(&p, K1, 0, K1); /* cp0 delay */
793 i_andi(&p, K0, K0, 0xffc); /* load delay */ 172 uasm_i_andi(&p, K0, K0, 0xffc); /* load delay */
794 i_addu(&p, K1, K1, K0); 173 uasm_i_addu(&p, K1, K1, K0);
795 i_lw(&p, K0, 0, K1); 174 uasm_i_lw(&p, K0, 0, K1);
796 i_nop(&p); /* load delay */ 175 uasm_i_nop(&p); /* load delay */
797 i_mtc0(&p, K0, C0_ENTRYLO0); 176 uasm_i_mtc0(&p, K0, C0_ENTRYLO0);
798 i_mfc0(&p, K1, C0_EPC); /* cp0 delay */ 177 uasm_i_mfc0(&p, K1, C0_EPC); /* cp0 delay */
799 i_tlbwr(&p); /* cp0 delay */ 178 uasm_i_tlbwr(&p); /* cp0 delay */
800 i_jr(&p, K1); 179 uasm_i_jr(&p, K1);
801 i_rfe(&p); /* branch delay */ 180 uasm_i_rfe(&p); /* branch delay */
802 181
803 if (p > tlb_handler + 32) 182 if (p > tlb_handler + 32)
804 panic("TLB refill handler space exceeded"); 183 panic("TLB refill handler space exceeded");
805 184
806 pr_info("Synthesized TLB refill handler (%u instructions).\n", 185 pr_debug("Wrote TLB refill handler (%u instructions).\n",
807 (unsigned int)(p - tlb_handler)); 186 (unsigned int)(p - tlb_handler));
808 187
809 memcpy((void *)ebase, tlb_handler, 0x80); 188 memcpy((void *)ebase, tlb_handler, 0x80);
810 189
@@ -850,12 +229,12 @@ static void __init __maybe_unused build_tlb_probe_entry(u32 **p)
850 case CPU_R5000: 229 case CPU_R5000:
851 case CPU_R5000A: 230 case CPU_R5000A:
852 case CPU_NEVADA: 231 case CPU_NEVADA:
853 i_nop(p); 232 uasm_i_nop(p);
854 i_tlbp(p); 233 uasm_i_tlbp(p);
855 break; 234 break;
856 235
857 default: 236 default:
858 i_tlbp(p); 237 uasm_i_tlbp(p);
859 break; 238 break;
860 } 239 }
861} 240}
@@ -866,19 +245,19 @@ static void __init __maybe_unused build_tlb_probe_entry(u32 **p)
866 */ 245 */
867enum tlb_write_entry { tlb_random, tlb_indexed }; 246enum tlb_write_entry { tlb_random, tlb_indexed };
868 247
869static void __init build_tlb_write_entry(u32 **p, struct label **l, 248static void __init build_tlb_write_entry(u32 **p, struct uasm_label **l,
870 struct reloc **r, 249 struct uasm_reloc **r,
871 enum tlb_write_entry wmode) 250 enum tlb_write_entry wmode)
872{ 251{
873 void(*tlbw)(u32 **) = NULL; 252 void(*tlbw)(u32 **) = NULL;
874 253
875 switch (wmode) { 254 switch (wmode) {
876 case tlb_random: tlbw = i_tlbwr; break; 255 case tlb_random: tlbw = uasm_i_tlbwr; break;
877 case tlb_indexed: tlbw = i_tlbwi; break; 256 case tlb_indexed: tlbw = uasm_i_tlbwi; break;
878 } 257 }
879 258
880 if (cpu_has_mips_r2) { 259 if (cpu_has_mips_r2) {
881 i_ehb(p); 260 uasm_i_ehb(p);
882 tlbw(p); 261 tlbw(p);
883 return; 262 return;
884 } 263 }
@@ -894,19 +273,19 @@ static void __init build_tlb_write_entry(u32 **p, struct label **l,
894 * This branch uses up a mtc0 hazard nop slot and saves 273 * This branch uses up a mtc0 hazard nop slot and saves
895 * two nops after the tlbw instruction. 274 * two nops after the tlbw instruction.
896 */ 275 */
897 il_bgezl(p, r, 0, label_tlbw_hazard); 276 uasm_il_bgezl(p, r, 0, label_tlbw_hazard);
898 tlbw(p); 277 tlbw(p);
899 l_tlbw_hazard(l, *p); 278 uasm_l_tlbw_hazard(l, *p);
900 i_nop(p); 279 uasm_i_nop(p);
901 break; 280 break;
902 281
903 case CPU_R4600: 282 case CPU_R4600:
904 case CPU_R4700: 283 case CPU_R4700:
905 case CPU_R5000: 284 case CPU_R5000:
906 case CPU_R5000A: 285 case CPU_R5000A:
907 i_nop(p); 286 uasm_i_nop(p);
908 tlbw(p); 287 tlbw(p);
909 i_nop(p); 288 uasm_i_nop(p);
910 break; 289 break;
911 290
912 case CPU_R4300: 291 case CPU_R4300:
@@ -920,7 +299,7 @@ static void __init build_tlb_write_entry(u32 **p, struct label **l,
920 case CPU_AU1210: 299 case CPU_AU1210:
921 case CPU_AU1250: 300 case CPU_AU1250:
922 case CPU_PR4450: 301 case CPU_PR4450:
923 i_nop(p); 302 uasm_i_nop(p);
924 tlbw(p); 303 tlbw(p);
925 break; 304 break;
926 305
@@ -937,26 +316,26 @@ static void __init build_tlb_write_entry(u32 **p, struct label **l,
937 case CPU_BCM4710: 316 case CPU_BCM4710:
938 case CPU_LOONGSON2: 317 case CPU_LOONGSON2:
939 if (m4kc_tlbp_war()) 318 if (m4kc_tlbp_war())
940 i_nop(p); 319 uasm_i_nop(p);
941 tlbw(p); 320 tlbw(p);
942 break; 321 break;
943 322
944 case CPU_NEVADA: 323 case CPU_NEVADA:
945 i_nop(p); /* QED specifies 2 nops hazard */ 324 uasm_i_nop(p); /* QED specifies 2 nops hazard */
946 /* 325 /*
947 * This branch uses up a mtc0 hazard nop slot and saves 326 * This branch uses up a mtc0 hazard nop slot and saves
948 * a nop after the tlbw instruction. 327 * a nop after the tlbw instruction.
949 */ 328 */
950 il_bgezl(p, r, 0, label_tlbw_hazard); 329 uasm_il_bgezl(p, r, 0, label_tlbw_hazard);
951 tlbw(p); 330 tlbw(p);
952 l_tlbw_hazard(l, *p); 331 uasm_l_tlbw_hazard(l, *p);
953 break; 332 break;
954 333
955 case CPU_RM7000: 334 case CPU_RM7000:
956 i_nop(p); 335 uasm_i_nop(p);
957 i_nop(p); 336 uasm_i_nop(p);
958 i_nop(p); 337 uasm_i_nop(p);
959 i_nop(p); 338 uasm_i_nop(p);
960 tlbw(p); 339 tlbw(p);
961 break; 340 break;
962 341
@@ -967,15 +346,15 @@ static void __init build_tlb_write_entry(u32 **p, struct label **l,
967 * cpu cycles and use for data translations should not occur 346 * cpu cycles and use for data translations should not occur
968 * for 3 cpu cycles. 347 * for 3 cpu cycles.
969 */ 348 */
970 i_ssnop(p); 349 uasm_i_ssnop(p);
971 i_ssnop(p); 350 uasm_i_ssnop(p);
972 i_ssnop(p); 351 uasm_i_ssnop(p);
973 i_ssnop(p); 352 uasm_i_ssnop(p);
974 tlbw(p); 353 tlbw(p);
975 i_ssnop(p); 354 uasm_i_ssnop(p);
976 i_ssnop(p); 355 uasm_i_ssnop(p);
977 i_ssnop(p); 356 uasm_i_ssnop(p);
978 i_ssnop(p); 357 uasm_i_ssnop(p);
979 break; 358 break;
980 359
981 case CPU_VR4111: 360 case CPU_VR4111:
@@ -983,18 +362,18 @@ static void __init build_tlb_write_entry(u32 **p, struct label **l,
983 case CPU_VR4122: 362 case CPU_VR4122:
984 case CPU_VR4181: 363 case CPU_VR4181:
985 case CPU_VR4181A: 364 case CPU_VR4181A:
986 i_nop(p); 365 uasm_i_nop(p);
987 i_nop(p); 366 uasm_i_nop(p);
988 tlbw(p); 367 tlbw(p);
989 i_nop(p); 368 uasm_i_nop(p);
990 i_nop(p); 369 uasm_i_nop(p);
991 break; 370 break;
992 371
993 case CPU_VR4131: 372 case CPU_VR4131:
994 case CPU_VR4133: 373 case CPU_VR4133:
995 case CPU_R5432: 374 case CPU_R5432:
996 i_nop(p); 375 uasm_i_nop(p);
997 i_nop(p); 376 uasm_i_nop(p);
998 tlbw(p); 377 tlbw(p);
999 break; 378 break;
1000 379
@@ -1011,7 +390,7 @@ static void __init build_tlb_write_entry(u32 **p, struct label **l,
1011 * TMP will be clobbered, PTR will hold the pmd entry. 390 * TMP will be clobbered, PTR will hold the pmd entry.
1012 */ 391 */
1013static void __init 392static void __init
1014build_get_pmde64(u32 **p, struct label **l, struct reloc **r, 393build_get_pmde64(u32 **p, struct uasm_label **l, struct uasm_reloc **r,
1015 unsigned int tmp, unsigned int ptr) 394 unsigned int tmp, unsigned int ptr)
1016{ 395{
1017 long pgdc = (long)pgd_current; 396 long pgdc = (long)pgd_current;
@@ -1019,52 +398,52 @@ build_get_pmde64(u32 **p, struct label **l, struct reloc **r,
1019 /* 398 /*
1020 * The vmalloc handling is not in the hotpath. 399 * The vmalloc handling is not in the hotpath.
1021 */ 400 */
1022 i_dmfc0(p, tmp, C0_BADVADDR); 401 uasm_i_dmfc0(p, tmp, C0_BADVADDR);
1023#ifdef MODULE_START 402#ifdef MODULE_START
1024 il_bltz(p, r, tmp, label_module_alloc); 403 uasm_il_bltz(p, r, tmp, label_module_alloc);
1025#else 404#else
1026 il_bltz(p, r, tmp, label_vmalloc); 405 uasm_il_bltz(p, r, tmp, label_vmalloc);
1027#endif 406#endif
1028 /* No i_nop needed here, since the next insn doesn't touch TMP. */ 407 /* No uasm_i_nop needed here, since the next insn doesn't touch TMP. */
1029 408
1030#ifdef CONFIG_SMP 409#ifdef CONFIG_SMP
1031# ifdef CONFIG_MIPS_MT_SMTC 410# ifdef CONFIG_MIPS_MT_SMTC
1032 /* 411 /*
1033 * SMTC uses TCBind value as "CPU" index 412 * SMTC uses TCBind value as "CPU" index
1034 */ 413 */
1035 i_mfc0(p, ptr, C0_TCBIND); 414 uasm_i_mfc0(p, ptr, C0_TCBIND);
1036 i_dsrl(p, ptr, ptr, 19); 415 uasm_i_dsrl(p, ptr, ptr, 19);
1037# else 416# else
1038 /* 417 /*
1039 * 64 bit SMP running in XKPHYS has smp_processor_id() << 3 418 * 64 bit SMP running in XKPHYS has smp_processor_id() << 3
1040 * stored in CONTEXT. 419 * stored in CONTEXT.
1041 */ 420 */
1042 i_dmfc0(p, ptr, C0_CONTEXT); 421 uasm_i_dmfc0(p, ptr, C0_CONTEXT);
1043 i_dsrl(p, ptr, ptr, 23); 422 uasm_i_dsrl(p, ptr, ptr, 23);
1044#endif 423#endif
1045 i_LA_mostly(p, tmp, pgdc); 424 UASM_i_LA_mostly(p, tmp, pgdc);
1046 i_daddu(p, ptr, ptr, tmp); 425 uasm_i_daddu(p, ptr, ptr, tmp);
1047 i_dmfc0(p, tmp, C0_BADVADDR); 426 uasm_i_dmfc0(p, tmp, C0_BADVADDR);
1048 i_ld(p, ptr, rel_lo(pgdc), ptr); 427 uasm_i_ld(p, ptr, uasm_rel_lo(pgdc), ptr);
1049#else 428#else
1050 i_LA_mostly(p, ptr, pgdc); 429 UASM_i_LA_mostly(p, ptr, pgdc);
1051 i_ld(p, ptr, rel_lo(pgdc), ptr); 430 uasm_i_ld(p, ptr, uasm_rel_lo(pgdc), ptr);
1052#endif 431#endif
1053 432
1054 l_vmalloc_done(l, *p); 433 uasm_l_vmalloc_done(l, *p);
1055 434
1056 if (PGDIR_SHIFT - 3 < 32) /* get pgd offset in bytes */ 435 if (PGDIR_SHIFT - 3 < 32) /* get pgd offset in bytes */
1057 i_dsrl(p, tmp, tmp, PGDIR_SHIFT-3); 436 uasm_i_dsrl(p, tmp, tmp, PGDIR_SHIFT-3);
1058 else 437 else
1059 i_dsrl32(p, tmp, tmp, PGDIR_SHIFT - 3 - 32); 438 uasm_i_dsrl32(p, tmp, tmp, PGDIR_SHIFT - 3 - 32);
1060 439
1061 i_andi(p, tmp, tmp, (PTRS_PER_PGD - 1)<<3); 440 uasm_i_andi(p, tmp, tmp, (PTRS_PER_PGD - 1)<<3);
1062 i_daddu(p, ptr, ptr, tmp); /* add in pgd offset */ 441 uasm_i_daddu(p, ptr, ptr, tmp); /* add in pgd offset */
1063 i_dmfc0(p, tmp, C0_BADVADDR); /* get faulting address */ 442 uasm_i_dmfc0(p, tmp, C0_BADVADDR); /* get faulting address */
1064 i_ld(p, ptr, 0, ptr); /* get pmd pointer */ 443 uasm_i_ld(p, ptr, 0, ptr); /* get pmd pointer */
1065 i_dsrl(p, tmp, tmp, PMD_SHIFT-3); /* get pmd offset in bytes */ 444 uasm_i_dsrl(p, tmp, tmp, PMD_SHIFT-3); /* get pmd offset in bytes */
1066 i_andi(p, tmp, tmp, (PTRS_PER_PMD - 1)<<3); 445 uasm_i_andi(p, tmp, tmp, (PTRS_PER_PMD - 1)<<3);
1067 i_daddu(p, ptr, ptr, tmp); /* add in pmd offset */ 446 uasm_i_daddu(p, ptr, ptr, tmp); /* add in pmd offset */
1068} 447}
1069 448
1070/* 449/*
@@ -1072,7 +451,7 @@ build_get_pmde64(u32 **p, struct label **l, struct reloc **r,
1072 * PTR will hold the pgd for vmalloc. 451 * PTR will hold the pgd for vmalloc.
1073 */ 452 */
1074static void __init 453static void __init
1075build_get_pgd_vmalloc64(u32 **p, struct label **l, struct reloc **r, 454build_get_pgd_vmalloc64(u32 **p, struct uasm_label **l, struct uasm_reloc **r,
1076 unsigned int bvaddr, unsigned int ptr) 455 unsigned int bvaddr, unsigned int ptr)
1077{ 456{
1078 long swpd = (long)swapper_pg_dir; 457 long swpd = (long)swapper_pg_dir;
@@ -1080,58 +459,60 @@ build_get_pgd_vmalloc64(u32 **p, struct label **l, struct reloc **r,
1080#ifdef MODULE_START 459#ifdef MODULE_START
1081 long modd = (long)module_pg_dir; 460 long modd = (long)module_pg_dir;
1082 461
1083 l_module_alloc(l, *p); 462 uasm_l_module_alloc(l, *p);
1084 /* 463 /*
1085 * Assumption: 464 * Assumption:
1086 * VMALLOC_START >= 0xc000000000000000UL 465 * VMALLOC_START >= 0xc000000000000000UL
1087 * MODULE_START >= 0xe000000000000000UL 466 * MODULE_START >= 0xe000000000000000UL
1088 */ 467 */
1089 i_SLL(p, ptr, bvaddr, 2); 468 UASM_i_SLL(p, ptr, bvaddr, 2);
1090 il_bgez(p, r, ptr, label_vmalloc); 469 uasm_il_bgez(p, r, ptr, label_vmalloc);
1091 470
1092 if (in_compat_space_p(MODULE_START) && !rel_lo(MODULE_START)) { 471 if (uasm_in_compat_space_p(MODULE_START) &&
1093 i_lui(p, ptr, rel_hi(MODULE_START)); /* delay slot */ 472 !uasm_rel_lo(MODULE_START)) {
473 uasm_i_lui(p, ptr, uasm_rel_hi(MODULE_START)); /* delay slot */
1094 } else { 474 } else {
1095 /* unlikely configuration */ 475 /* unlikely configuration */
1096 i_nop(p); /* delay slot */ 476 uasm_i_nop(p); /* delay slot */
1097 i_LA(p, ptr, MODULE_START); 477 UASM_i_LA(p, ptr, MODULE_START);
1098 } 478 }
1099 i_dsubu(p, bvaddr, bvaddr, ptr); 479 uasm_i_dsubu(p, bvaddr, bvaddr, ptr);
1100 480
1101 if (in_compat_space_p(modd) && !rel_lo(modd)) { 481 if (uasm_in_compat_space_p(modd) && !uasm_rel_lo(modd)) {
1102 il_b(p, r, label_vmalloc_done); 482 uasm_il_b(p, r, label_vmalloc_done);
1103 i_lui(p, ptr, rel_hi(modd)); 483 uasm_i_lui(p, ptr, uasm_rel_hi(modd));
1104 } else { 484 } else {
1105 i_LA_mostly(p, ptr, modd); 485 UASM_i_LA_mostly(p, ptr, modd);
1106 il_b(p, r, label_vmalloc_done); 486 uasm_il_b(p, r, label_vmalloc_done);
1107 if (in_compat_space_p(modd)) 487 if (uasm_in_compat_space_p(modd))
1108 i_addiu(p, ptr, ptr, rel_lo(modd)); 488 uasm_i_addiu(p, ptr, ptr, uasm_rel_lo(modd));
1109 else 489 else
1110 i_daddiu(p, ptr, ptr, rel_lo(modd)); 490 uasm_i_daddiu(p, ptr, ptr, uasm_rel_lo(modd));
1111 } 491 }
1112 492
1113 l_vmalloc(l, *p); 493 uasm_l_vmalloc(l, *p);
1114 if (in_compat_space_p(MODULE_START) && !rel_lo(MODULE_START) && 494 if (uasm_in_compat_space_p(MODULE_START) &&
495 !uasm_rel_lo(MODULE_START) &&
1115 MODULE_START << 32 == VMALLOC_START) 496 MODULE_START << 32 == VMALLOC_START)
1116 i_dsll32(p, ptr, ptr, 0); /* typical case */ 497 uasm_i_dsll32(p, ptr, ptr, 0); /* typical case */
1117 else 498 else
1118 i_LA(p, ptr, VMALLOC_START); 499 UASM_i_LA(p, ptr, VMALLOC_START);
1119#else 500#else
1120 l_vmalloc(l, *p); 501 uasm_l_vmalloc(l, *p);
1121 i_LA(p, ptr, VMALLOC_START); 502 UASM_i_LA(p, ptr, VMALLOC_START);
1122#endif 503#endif
1123 i_dsubu(p, bvaddr, bvaddr, ptr); 504 uasm_i_dsubu(p, bvaddr, bvaddr, ptr);
1124 505
1125 if (in_compat_space_p(swpd) && !rel_lo(swpd)) { 506 if (uasm_in_compat_space_p(swpd) && !uasm_rel_lo(swpd)) {
1126 il_b(p, r, label_vmalloc_done); 507 uasm_il_b(p, r, label_vmalloc_done);
1127 i_lui(p, ptr, rel_hi(swpd)); 508 uasm_i_lui(p, ptr, uasm_rel_hi(swpd));
1128 } else { 509 } else {
1129 i_LA_mostly(p, ptr, swpd); 510 UASM_i_LA_mostly(p, ptr, swpd);
1130 il_b(p, r, label_vmalloc_done); 511 uasm_il_b(p, r, label_vmalloc_done);
1131 if (in_compat_space_p(swpd)) 512 if (uasm_in_compat_space_p(swpd))
1132 i_addiu(p, ptr, ptr, rel_lo(swpd)); 513 uasm_i_addiu(p, ptr, ptr, uasm_rel_lo(swpd));
1133 else 514 else
1134 i_daddiu(p, ptr, ptr, rel_lo(swpd)); 515 uasm_i_daddiu(p, ptr, ptr, uasm_rel_lo(swpd));
1135 } 516 }
1136} 517}
1137 518
@@ -1152,26 +533,26 @@ build_get_pgde32(u32 **p, unsigned int tmp, unsigned int ptr)
1152 /* 533 /*
1153 * SMTC uses TCBind value as "CPU" index 534 * SMTC uses TCBind value as "CPU" index
1154 */ 535 */
1155 i_mfc0(p, ptr, C0_TCBIND); 536 uasm_i_mfc0(p, ptr, C0_TCBIND);
1156 i_LA_mostly(p, tmp, pgdc); 537 UASM_i_LA_mostly(p, tmp, pgdc);
1157 i_srl(p, ptr, ptr, 19); 538 uasm_i_srl(p, ptr, ptr, 19);
1158#else 539#else
1159 /* 540 /*
1160 * smp_processor_id() << 3 is stored in CONTEXT. 541 * smp_processor_id() << 3 is stored in CONTEXT.
1161 */ 542 */
1162 i_mfc0(p, ptr, C0_CONTEXT); 543 uasm_i_mfc0(p, ptr, C0_CONTEXT);
1163 i_LA_mostly(p, tmp, pgdc); 544 UASM_i_LA_mostly(p, tmp, pgdc);
1164 i_srl(p, ptr, ptr, 23); 545 uasm_i_srl(p, ptr, ptr, 23);
1165#endif 546#endif
1166 i_addu(p, ptr, tmp, ptr); 547 uasm_i_addu(p, ptr, tmp, ptr);
1167#else 548#else
1168 i_LA_mostly(p, ptr, pgdc); 549 UASM_i_LA_mostly(p, ptr, pgdc);
1169#endif 550#endif
1170 i_mfc0(p, tmp, C0_BADVADDR); /* get faulting address */ 551 uasm_i_mfc0(p, tmp, C0_BADVADDR); /* get faulting address */
1171 i_lw(p, ptr, rel_lo(pgdc), ptr); 552 uasm_i_lw(p, ptr, uasm_rel_lo(pgdc), ptr);
1172 i_srl(p, tmp, tmp, PGDIR_SHIFT); /* get pgd only bits */ 553 uasm_i_srl(p, tmp, tmp, PGDIR_SHIFT); /* get pgd only bits */
1173 i_sll(p, tmp, tmp, PGD_T_LOG2); 554 uasm_i_sll(p, tmp, tmp, PGD_T_LOG2);
1174 i_addu(p, ptr, ptr, tmp); /* add in pgd offset */ 555 uasm_i_addu(p, ptr, ptr, tmp); /* add in pgd offset */
1175} 556}
1176 557
1177#endif /* !CONFIG_64BIT */ 558#endif /* !CONFIG_64BIT */
@@ -1198,8 +579,8 @@ static void __init build_adjust_context(u32 **p, unsigned int ctx)
1198 } 579 }
1199 580
1200 if (shift) 581 if (shift)
1201 i_SRL(p, ctx, ctx, shift); 582 UASM_i_SRL(p, ctx, ctx, shift);
1202 i_andi(p, ctx, ctx, mask); 583 uasm_i_andi(p, ctx, ctx, mask);
1203} 584}
1204 585
1205static void __init build_get_ptep(u32 **p, unsigned int tmp, unsigned int ptr) 586static void __init build_get_ptep(u32 **p, unsigned int tmp, unsigned int ptr)
@@ -1213,18 +594,18 @@ static void __init build_get_ptep(u32 **p, unsigned int tmp, unsigned int ptr)
1213 */ 594 */
1214 switch (current_cpu_type()) { 595 switch (current_cpu_type()) {
1215 case CPU_NEVADA: 596 case CPU_NEVADA:
1216 i_LW(p, ptr, 0, ptr); 597 UASM_i_LW(p, ptr, 0, ptr);
1217 GET_CONTEXT(p, tmp); /* get context reg */ 598 GET_CONTEXT(p, tmp); /* get context reg */
1218 break; 599 break;
1219 600
1220 default: 601 default:
1221 GET_CONTEXT(p, tmp); /* get context reg */ 602 GET_CONTEXT(p, tmp); /* get context reg */
1222 i_LW(p, ptr, 0, ptr); 603 UASM_i_LW(p, ptr, 0, ptr);
1223 break; 604 break;
1224 } 605 }
1225 606
1226 build_adjust_context(p, tmp); 607 build_adjust_context(p, tmp);
1227 i_ADDU(p, ptr, ptr, tmp); /* add in offset */ 608 UASM_i_ADDU(p, ptr, ptr, tmp); /* add in offset */
1228} 609}
1229 610
1230static void __init build_update_entries(u32 **p, unsigned int tmp, 611static void __init build_update_entries(u32 **p, unsigned int tmp,
@@ -1236,45 +617,45 @@ static void __init build_update_entries(u32 **p, unsigned int tmp,
1236 */ 617 */
1237#ifdef CONFIG_64BIT_PHYS_ADDR 618#ifdef CONFIG_64BIT_PHYS_ADDR
1238 if (cpu_has_64bits) { 619 if (cpu_has_64bits) {
1239 i_ld(p, tmp, 0, ptep); /* get even pte */ 620 uasm_i_ld(p, tmp, 0, ptep); /* get even pte */
1240 i_ld(p, ptep, sizeof(pte_t), ptep); /* get odd pte */ 621 uasm_i_ld(p, ptep, sizeof(pte_t), ptep); /* get odd pte */
1241 i_dsrl(p, tmp, tmp, 6); /* convert to entrylo0 */ 622 uasm_i_dsrl(p, tmp, tmp, 6); /* convert to entrylo0 */
1242 i_mtc0(p, tmp, C0_ENTRYLO0); /* load it */ 623 uasm_i_mtc0(p, tmp, C0_ENTRYLO0); /* load it */
1243 i_dsrl(p, ptep, ptep, 6); /* convert to entrylo1 */ 624 uasm_i_dsrl(p, ptep, ptep, 6); /* convert to entrylo1 */
1244 i_mtc0(p, ptep, C0_ENTRYLO1); /* load it */ 625 uasm_i_mtc0(p, ptep, C0_ENTRYLO1); /* load it */
1245 } else { 626 } else {
1246 int pte_off_even = sizeof(pte_t) / 2; 627 int pte_off_even = sizeof(pte_t) / 2;
1247 int pte_off_odd = pte_off_even + sizeof(pte_t); 628 int pte_off_odd = pte_off_even + sizeof(pte_t);
1248 629
1249 /* The pte entries are pre-shifted */ 630 /* The pte entries are pre-shifted */
1250 i_lw(p, tmp, pte_off_even, ptep); /* get even pte */ 631 uasm_i_lw(p, tmp, pte_off_even, ptep); /* get even pte */
1251 i_mtc0(p, tmp, C0_ENTRYLO0); /* load it */ 632 uasm_i_mtc0(p, tmp, C0_ENTRYLO0); /* load it */
1252 i_lw(p, ptep, pte_off_odd, ptep); /* get odd pte */ 633 uasm_i_lw(p, ptep, pte_off_odd, ptep); /* get odd pte */
1253 i_mtc0(p, ptep, C0_ENTRYLO1); /* load it */ 634 uasm_i_mtc0(p, ptep, C0_ENTRYLO1); /* load it */
1254 } 635 }
1255#else 636#else
1256 i_LW(p, tmp, 0, ptep); /* get even pte */ 637 UASM_i_LW(p, tmp, 0, ptep); /* get even pte */
1257 i_LW(p, ptep, sizeof(pte_t), ptep); /* get odd pte */ 638 UASM_i_LW(p, ptep, sizeof(pte_t), ptep); /* get odd pte */
1258 if (r45k_bvahwbug()) 639 if (r45k_bvahwbug())
1259 build_tlb_probe_entry(p); 640 build_tlb_probe_entry(p);
1260 i_SRL(p, tmp, tmp, 6); /* convert to entrylo0 */ 641 UASM_i_SRL(p, tmp, tmp, 6); /* convert to entrylo0 */
1261 if (r4k_250MHZhwbug()) 642 if (r4k_250MHZhwbug())
1262 i_mtc0(p, 0, C0_ENTRYLO0); 643 uasm_i_mtc0(p, 0, C0_ENTRYLO0);
1263 i_mtc0(p, tmp, C0_ENTRYLO0); /* load it */ 644 uasm_i_mtc0(p, tmp, C0_ENTRYLO0); /* load it */
1264 i_SRL(p, ptep, ptep, 6); /* convert to entrylo1 */ 645 UASM_i_SRL(p, ptep, ptep, 6); /* convert to entrylo1 */
1265 if (r45k_bvahwbug()) 646 if (r45k_bvahwbug())
1266 i_mfc0(p, tmp, C0_INDEX); 647 uasm_i_mfc0(p, tmp, C0_INDEX);
1267 if (r4k_250MHZhwbug()) 648 if (r4k_250MHZhwbug())
1268 i_mtc0(p, 0, C0_ENTRYLO1); 649 uasm_i_mtc0(p, 0, C0_ENTRYLO1);
1269 i_mtc0(p, ptep, C0_ENTRYLO1); /* load it */ 650 uasm_i_mtc0(p, ptep, C0_ENTRYLO1); /* load it */
1270#endif 651#endif
1271} 652}
1272 653
1273static void __init build_r4000_tlb_refill_handler(void) 654static void __init build_r4000_tlb_refill_handler(void)
1274{ 655{
1275 u32 *p = tlb_handler; 656 u32 *p = tlb_handler;
1276 struct label *l = labels; 657 struct uasm_label *l = labels;
1277 struct reloc *r = relocs; 658 struct uasm_reloc *r = relocs;
1278 u32 *f; 659 u32 *f;
1279 unsigned int final_len; 660 unsigned int final_len;
1280 661
@@ -1287,12 +668,12 @@ static void __init build_r4000_tlb_refill_handler(void)
1287 * create the plain linear handler 668 * create the plain linear handler
1288 */ 669 */
1289 if (bcm1250_m3_war()) { 670 if (bcm1250_m3_war()) {
1290 i_MFC0(&p, K0, C0_BADVADDR); 671 UASM_i_MFC0(&p, K0, C0_BADVADDR);
1291 i_MFC0(&p, K1, C0_ENTRYHI); 672 UASM_i_MFC0(&p, K1, C0_ENTRYHI);
1292 i_xor(&p, K0, K0, K1); 673 uasm_i_xor(&p, K0, K0, K1);
1293 i_SRL(&p, K0, K0, PAGE_SHIFT + 1); 674 UASM_i_SRL(&p, K0, K0, PAGE_SHIFT + 1);
1294 il_bnez(&p, &r, K0, label_leave); 675 uasm_il_bnez(&p, &r, K0, label_leave);
1295 /* No need for i_nop */ 676 /* No need for uasm_i_nop */
1296 } 677 }
1297 678
1298#ifdef CONFIG_64BIT 679#ifdef CONFIG_64BIT
@@ -1304,8 +685,8 @@ static void __init build_r4000_tlb_refill_handler(void)
1304 build_get_ptep(&p, K0, K1); 685 build_get_ptep(&p, K0, K1);
1305 build_update_entries(&p, K0, K1); 686 build_update_entries(&p, K0, K1);
1306 build_tlb_write_entry(&p, &l, &r, tlb_random); 687 build_tlb_write_entry(&p, &l, &r, tlb_random);
1307 l_leave(&l, p); 688 uasm_l_leave(&l, p);
1308 i_eret(&p); /* return from trap */ 689 uasm_i_eret(&p); /* return from trap */
1309 690
1310#ifdef CONFIG_64BIT 691#ifdef CONFIG_64BIT
1311 build_get_pgd_vmalloc64(&p, &l, &r, K0, K1); 692 build_get_pgd_vmalloc64(&p, &l, &r, K0, K1);
@@ -1325,7 +706,7 @@ static void __init build_r4000_tlb_refill_handler(void)
1325#else 706#else
1326 if (((p - tlb_handler) > 63) 707 if (((p - tlb_handler) > 63)
1327 || (((p - tlb_handler) > 61) 708 || (((p - tlb_handler) > 61)
1328 && insn_has_bdelay(relocs, tlb_handler + 29))) 709 && uasm_insn_has_bdelay(relocs, tlb_handler + 29)))
1329 panic("TLB refill handler space exceeded"); 710 panic("TLB refill handler space exceeded");
1330#endif 711#endif
1331 712
@@ -1335,13 +716,13 @@ static void __init build_r4000_tlb_refill_handler(void)
1335#if defined(CONFIG_32BIT) || defined(CONFIG_CPU_LOONGSON2) 716#if defined(CONFIG_32BIT) || defined(CONFIG_CPU_LOONGSON2)
1336 f = final_handler; 717 f = final_handler;
1337 /* Simplest case, just copy the handler. */ 718 /* Simplest case, just copy the handler. */
1338 copy_handler(relocs, labels, tlb_handler, p, f); 719 uasm_copy_handler(relocs, labels, tlb_handler, p, f);
1339 final_len = p - tlb_handler; 720 final_len = p - tlb_handler;
1340#else /* CONFIG_64BIT */ 721#else /* CONFIG_64BIT */
1341 f = final_handler + 32; 722 f = final_handler + 32;
1342 if ((p - tlb_handler) <= 32) { 723 if ((p - tlb_handler) <= 32) {
1343 /* Just copy the handler. */ 724 /* Just copy the handler. */
1344 copy_handler(relocs, labels, tlb_handler, p, f); 725 uasm_copy_handler(relocs, labels, tlb_handler, p, f);
1345 final_len = p - tlb_handler; 726 final_len = p - tlb_handler;
1346 } else { 727 } else {
1347 u32 *split = tlb_handler + 30; 728 u32 *split = tlb_handler + 30;
@@ -1349,34 +730,34 @@ static void __init build_r4000_tlb_refill_handler(void)
1349 /* 730 /*
1350 * Find the split point. 731 * Find the split point.
1351 */ 732 */
1352 if (insn_has_bdelay(relocs, split - 1)) 733 if (uasm_insn_has_bdelay(relocs, split - 1))
1353 split--; 734 split--;
1354 735
1355 /* Copy first part of the handler. */ 736 /* Copy first part of the handler. */
1356 copy_handler(relocs, labels, tlb_handler, split, f); 737 uasm_copy_handler(relocs, labels, tlb_handler, split, f);
1357 f += split - tlb_handler; 738 f += split - tlb_handler;
1358 739
1359 /* Insert branch. */ 740 /* Insert branch. */
1360 l_split(&l, final_handler); 741 uasm_l_split(&l, final_handler);
1361 il_b(&f, &r, label_split); 742 uasm_il_b(&f, &r, label_split);
1362 if (insn_has_bdelay(relocs, split)) 743 if (uasm_insn_has_bdelay(relocs, split))
1363 i_nop(&f); 744 uasm_i_nop(&f);
1364 else { 745 else {
1365 copy_handler(relocs, labels, split, split + 1, f); 746 uasm_copy_handler(relocs, labels, split, split + 1, f);
1366 move_labels(labels, f, f + 1, -1); 747 uasm_move_labels(labels, f, f + 1, -1);
1367 f++; 748 f++;
1368 split++; 749 split++;
1369 } 750 }
1370 751
1371 /* Copy the rest of the handler. */ 752 /* Copy the rest of the handler. */
1372 copy_handler(relocs, labels, split, p, final_handler); 753 uasm_copy_handler(relocs, labels, split, p, final_handler);
1373 final_len = (f - (final_handler + 32)) + (p - split); 754 final_len = (f - (final_handler + 32)) + (p - split);
1374 } 755 }
1375#endif /* CONFIG_64BIT */ 756#endif /* CONFIG_64BIT */
1376 757
1377 resolve_relocs(relocs, labels); 758 uasm_resolve_relocs(relocs, labels);
1378 pr_info("Synthesized TLB refill handler (%u instructions).\n", 759 pr_debug("Wrote TLB refill handler (%u instructions).\n",
1379 final_len); 760 final_len);
1380 761
1381 memcpy((void *)ebase, final_handler, 0x100); 762 memcpy((void *)ebase, final_handler, 0x100);
1382 763
@@ -1403,75 +784,75 @@ u32 handle_tlbs[FASTPATH_SIZE] __cacheline_aligned;
1403u32 handle_tlbm[FASTPATH_SIZE] __cacheline_aligned; 784u32 handle_tlbm[FASTPATH_SIZE] __cacheline_aligned;
1404 785
1405static void __init 786static void __init
1406iPTE_LW(u32 **p, struct label **l, unsigned int pte, unsigned int ptr) 787iPTE_LW(u32 **p, struct uasm_label **l, unsigned int pte, unsigned int ptr)
1407{ 788{
1408#ifdef CONFIG_SMP 789#ifdef CONFIG_SMP
1409# ifdef CONFIG_64BIT_PHYS_ADDR 790# ifdef CONFIG_64BIT_PHYS_ADDR
1410 if (cpu_has_64bits) 791 if (cpu_has_64bits)
1411 i_lld(p, pte, 0, ptr); 792 uasm_i_lld(p, pte, 0, ptr);
1412 else 793 else
1413# endif 794# endif
1414 i_LL(p, pte, 0, ptr); 795 UASM_i_LL(p, pte, 0, ptr);
1415#else 796#else
1416# ifdef CONFIG_64BIT_PHYS_ADDR 797# ifdef CONFIG_64BIT_PHYS_ADDR
1417 if (cpu_has_64bits) 798 if (cpu_has_64bits)
1418 i_ld(p, pte, 0, ptr); 799 uasm_i_ld(p, pte, 0, ptr);
1419 else 800 else
1420# endif 801# endif
1421 i_LW(p, pte, 0, ptr); 802 UASM_i_LW(p, pte, 0, ptr);
1422#endif 803#endif
1423} 804}
1424 805
1425static void __init 806static void __init
1426iPTE_SW(u32 **p, struct reloc **r, unsigned int pte, unsigned int ptr, 807iPTE_SW(u32 **p, struct uasm_reloc **r, unsigned int pte, unsigned int ptr,
1427 unsigned int mode) 808 unsigned int mode)
1428{ 809{
1429#ifdef CONFIG_64BIT_PHYS_ADDR 810#ifdef CONFIG_64BIT_PHYS_ADDR
1430 unsigned int hwmode = mode & (_PAGE_VALID | _PAGE_DIRTY); 811 unsigned int hwmode = mode & (_PAGE_VALID | _PAGE_DIRTY);
1431#endif 812#endif
1432 813
1433 i_ori(p, pte, pte, mode); 814 uasm_i_ori(p, pte, pte, mode);
1434#ifdef CONFIG_SMP 815#ifdef CONFIG_SMP
1435# ifdef CONFIG_64BIT_PHYS_ADDR 816# ifdef CONFIG_64BIT_PHYS_ADDR
1436 if (cpu_has_64bits) 817 if (cpu_has_64bits)
1437 i_scd(p, pte, 0, ptr); 818 uasm_i_scd(p, pte, 0, ptr);
1438 else 819 else
1439# endif 820# endif
1440 i_SC(p, pte, 0, ptr); 821 UASM_i_SC(p, pte, 0, ptr);
1441 822
1442 if (r10000_llsc_war()) 823 if (r10000_llsc_war())
1443 il_beqzl(p, r, pte, label_smp_pgtable_change); 824 uasm_il_beqzl(p, r, pte, label_smp_pgtable_change);
1444 else 825 else
1445 il_beqz(p, r, pte, label_smp_pgtable_change); 826 uasm_il_beqz(p, r, pte, label_smp_pgtable_change);
1446 827
1447# ifdef CONFIG_64BIT_PHYS_ADDR 828# ifdef CONFIG_64BIT_PHYS_ADDR
1448 if (!cpu_has_64bits) { 829 if (!cpu_has_64bits) {
1449 /* no i_nop needed */ 830 /* no uasm_i_nop needed */
1450 i_ll(p, pte, sizeof(pte_t) / 2, ptr); 831 uasm_i_ll(p, pte, sizeof(pte_t) / 2, ptr);
1451 i_ori(p, pte, pte, hwmode); 832 uasm_i_ori(p, pte, pte, hwmode);
1452 i_sc(p, pte, sizeof(pte_t) / 2, ptr); 833 uasm_i_sc(p, pte, sizeof(pte_t) / 2, ptr);
1453 il_beqz(p, r, pte, label_smp_pgtable_change); 834 uasm_il_beqz(p, r, pte, label_smp_pgtable_change);
1454 /* no i_nop needed */ 835 /* no uasm_i_nop needed */
1455 i_lw(p, pte, 0, ptr); 836 uasm_i_lw(p, pte, 0, ptr);
1456 } else 837 } else
1457 i_nop(p); 838 uasm_i_nop(p);
1458# else 839# else
1459 i_nop(p); 840 uasm_i_nop(p);
1460# endif 841# endif
1461#else 842#else
1462# ifdef CONFIG_64BIT_PHYS_ADDR 843# ifdef CONFIG_64BIT_PHYS_ADDR
1463 if (cpu_has_64bits) 844 if (cpu_has_64bits)
1464 i_sd(p, pte, 0, ptr); 845 uasm_i_sd(p, pte, 0, ptr);
1465 else 846 else
1466# endif 847# endif
1467 i_SW(p, pte, 0, ptr); 848 UASM_i_SW(p, pte, 0, ptr);
1468 849
1469# ifdef CONFIG_64BIT_PHYS_ADDR 850# ifdef CONFIG_64BIT_PHYS_ADDR
1470 if (!cpu_has_64bits) { 851 if (!cpu_has_64bits) {
1471 i_lw(p, pte, sizeof(pte_t) / 2, ptr); 852 uasm_i_lw(p, pte, sizeof(pte_t) / 2, ptr);
1472 i_ori(p, pte, pte, hwmode); 853 uasm_i_ori(p, pte, pte, hwmode);
1473 i_sw(p, pte, sizeof(pte_t) / 2, ptr); 854 uasm_i_sw(p, pte, sizeof(pte_t) / 2, ptr);
1474 i_lw(p, pte, 0, ptr); 855 uasm_i_lw(p, pte, 0, ptr);
1475 } 856 }
1476# endif 857# endif
1477#endif 858#endif
@@ -1483,18 +864,18 @@ iPTE_SW(u32 **p, struct reloc **r, unsigned int pte, unsigned int ptr,
1483 * with it's original value. 864 * with it's original value.
1484 */ 865 */
1485static void __init 866static void __init
1486build_pte_present(u32 **p, struct label **l, struct reloc **r, 867build_pte_present(u32 **p, struct uasm_label **l, struct uasm_reloc **r,
1487 unsigned int pte, unsigned int ptr, enum label_id lid) 868 unsigned int pte, unsigned int ptr, enum label_id lid)
1488{ 869{
1489 i_andi(p, pte, pte, _PAGE_PRESENT | _PAGE_READ); 870 uasm_i_andi(p, pte, pte, _PAGE_PRESENT | _PAGE_READ);
1490 i_xori(p, pte, pte, _PAGE_PRESENT | _PAGE_READ); 871 uasm_i_xori(p, pte, pte, _PAGE_PRESENT | _PAGE_READ);
1491 il_bnez(p, r, pte, lid); 872 uasm_il_bnez(p, r, pte, lid);
1492 iPTE_LW(p, l, pte, ptr); 873 iPTE_LW(p, l, pte, ptr);
1493} 874}
1494 875
1495/* Make PTE valid, store result in PTR. */ 876/* Make PTE valid, store result in PTR. */
1496static void __init 877static void __init
1497build_make_valid(u32 **p, struct reloc **r, unsigned int pte, 878build_make_valid(u32 **p, struct uasm_reloc **r, unsigned int pte,
1498 unsigned int ptr) 879 unsigned int ptr)
1499{ 880{
1500 unsigned int mode = _PAGE_VALID | _PAGE_ACCESSED; 881 unsigned int mode = _PAGE_VALID | _PAGE_ACCESSED;
@@ -1507,12 +888,12 @@ build_make_valid(u32 **p, struct reloc **r, unsigned int pte,
1507 * restore PTE with value from PTR when done. 888 * restore PTE with value from PTR when done.
1508 */ 889 */
1509static void __init 890static void __init
1510build_pte_writable(u32 **p, struct label **l, struct reloc **r, 891build_pte_writable(u32 **p, struct uasm_label **l, struct uasm_reloc **r,
1511 unsigned int pte, unsigned int ptr, enum label_id lid) 892 unsigned int pte, unsigned int ptr, enum label_id lid)
1512{ 893{
1513 i_andi(p, pte, pte, _PAGE_PRESENT | _PAGE_WRITE); 894 uasm_i_andi(p, pte, pte, _PAGE_PRESENT | _PAGE_WRITE);
1514 i_xori(p, pte, pte, _PAGE_PRESENT | _PAGE_WRITE); 895 uasm_i_xori(p, pte, pte, _PAGE_PRESENT | _PAGE_WRITE);
1515 il_bnez(p, r, pte, lid); 896 uasm_il_bnez(p, r, pte, lid);
1516 iPTE_LW(p, l, pte, ptr); 897 iPTE_LW(p, l, pte, ptr);
1517} 898}
1518 899
@@ -1520,7 +901,7 @@ build_pte_writable(u32 **p, struct label **l, struct reloc **r,
1520 * at PTR. 901 * at PTR.
1521 */ 902 */
1522static void __init 903static void __init
1523build_make_write(u32 **p, struct reloc **r, unsigned int pte, 904build_make_write(u32 **p, struct uasm_reloc **r, unsigned int pte,
1524 unsigned int ptr) 905 unsigned int ptr)
1525{ 906{
1526 unsigned int mode = (_PAGE_ACCESSED | _PAGE_MODIFIED | _PAGE_VALID 907 unsigned int mode = (_PAGE_ACCESSED | _PAGE_MODIFIED | _PAGE_VALID
@@ -1534,11 +915,11 @@ build_make_write(u32 **p, struct reloc **r, unsigned int pte,
1534 * restore PTE with value from PTR when done. 915 * restore PTE with value from PTR when done.
1535 */ 916 */
1536static void __init 917static void __init
1537build_pte_modifiable(u32 **p, struct label **l, struct reloc **r, 918build_pte_modifiable(u32 **p, struct uasm_label **l, struct uasm_reloc **r,
1538 unsigned int pte, unsigned int ptr, enum label_id lid) 919 unsigned int pte, unsigned int ptr, enum label_id lid)
1539{ 920{
1540 i_andi(p, pte, pte, _PAGE_WRITE); 921 uasm_i_andi(p, pte, pte, _PAGE_WRITE);
1541 il_beqz(p, r, pte, lid); 922 uasm_il_beqz(p, r, pte, lid);
1542 iPTE_LW(p, l, pte, ptr); 923 iPTE_LW(p, l, pte, ptr);
1543} 924}
1544 925
@@ -1553,11 +934,11 @@ build_pte_modifiable(u32 **p, struct label **l, struct reloc **r,
1553static void __init 934static void __init
1554build_r3000_pte_reload_tlbwi(u32 **p, unsigned int pte, unsigned int tmp) 935build_r3000_pte_reload_tlbwi(u32 **p, unsigned int pte, unsigned int tmp)
1555{ 936{
1556 i_mtc0(p, pte, C0_ENTRYLO0); /* cp0 delay */ 937 uasm_i_mtc0(p, pte, C0_ENTRYLO0); /* cp0 delay */
1557 i_mfc0(p, tmp, C0_EPC); /* cp0 delay */ 938 uasm_i_mfc0(p, tmp, C0_EPC); /* cp0 delay */
1558 i_tlbwi(p); 939 uasm_i_tlbwi(p);
1559 i_jr(p, tmp); 940 uasm_i_jr(p, tmp);
1560 i_rfe(p); /* branch delay */ 941 uasm_i_rfe(p); /* branch delay */
1561} 942}
1562 943
1563/* 944/*
@@ -1567,20 +948,21 @@ build_r3000_pte_reload_tlbwi(u32 **p, unsigned int pte, unsigned int tmp)
1567 * kseg2 access, i.e. without refill. Then it returns. 948 * kseg2 access, i.e. without refill. Then it returns.
1568 */ 949 */
1569static void __init 950static void __init
1570build_r3000_tlb_reload_write(u32 **p, struct label **l, struct reloc **r, 951build_r3000_tlb_reload_write(u32 **p, struct uasm_label **l,
1571 unsigned int pte, unsigned int tmp) 952 struct uasm_reloc **r, unsigned int pte,
1572{ 953 unsigned int tmp)
1573 i_mfc0(p, tmp, C0_INDEX); 954{
1574 i_mtc0(p, pte, C0_ENTRYLO0); /* cp0 delay */ 955 uasm_i_mfc0(p, tmp, C0_INDEX);
1575 il_bltz(p, r, tmp, label_r3000_write_probe_fail); /* cp0 delay */ 956 uasm_i_mtc0(p, pte, C0_ENTRYLO0); /* cp0 delay */
1576 i_mfc0(p, tmp, C0_EPC); /* branch delay */ 957 uasm_il_bltz(p, r, tmp, label_r3000_write_probe_fail); /* cp0 delay */
1577 i_tlbwi(p); /* cp0 delay */ 958 uasm_i_mfc0(p, tmp, C0_EPC); /* branch delay */
1578 i_jr(p, tmp); 959 uasm_i_tlbwi(p); /* cp0 delay */
1579 i_rfe(p); /* branch delay */ 960 uasm_i_jr(p, tmp);
1580 l_r3000_write_probe_fail(l, *p); 961 uasm_i_rfe(p); /* branch delay */
1581 i_tlbwr(p); /* cp0 delay */ 962 uasm_l_r3000_write_probe_fail(l, *p);
1582 i_jr(p, tmp); 963 uasm_i_tlbwr(p); /* cp0 delay */
1583 i_rfe(p); /* branch delay */ 964 uasm_i_jr(p, tmp);
965 uasm_i_rfe(p); /* branch delay */
1584} 966}
1585 967
1586static void __init 968static void __init
@@ -1589,25 +971,25 @@ build_r3000_tlbchange_handler_head(u32 **p, unsigned int pte,
1589{ 971{
1590 long pgdc = (long)pgd_current; 972 long pgdc = (long)pgd_current;
1591 973
1592 i_mfc0(p, pte, C0_BADVADDR); 974 uasm_i_mfc0(p, pte, C0_BADVADDR);
1593 i_lui(p, ptr, rel_hi(pgdc)); /* cp0 delay */ 975 uasm_i_lui(p, ptr, uasm_rel_hi(pgdc)); /* cp0 delay */
1594 i_lw(p, ptr, rel_lo(pgdc), ptr); 976 uasm_i_lw(p, ptr, uasm_rel_lo(pgdc), ptr);
1595 i_srl(p, pte, pte, 22); /* load delay */ 977 uasm_i_srl(p, pte, pte, 22); /* load delay */
1596 i_sll(p, pte, pte, 2); 978 uasm_i_sll(p, pte, pte, 2);
1597 i_addu(p, ptr, ptr, pte); 979 uasm_i_addu(p, ptr, ptr, pte);
1598 i_mfc0(p, pte, C0_CONTEXT); 980 uasm_i_mfc0(p, pte, C0_CONTEXT);
1599 i_lw(p, ptr, 0, ptr); /* cp0 delay */ 981 uasm_i_lw(p, ptr, 0, ptr); /* cp0 delay */
1600 i_andi(p, pte, pte, 0xffc); /* load delay */ 982 uasm_i_andi(p, pte, pte, 0xffc); /* load delay */
1601 i_addu(p, ptr, ptr, pte); 983 uasm_i_addu(p, ptr, ptr, pte);
1602 i_lw(p, pte, 0, ptr); 984 uasm_i_lw(p, pte, 0, ptr);
1603 i_tlbp(p); /* load delay */ 985 uasm_i_tlbp(p); /* load delay */
1604} 986}
1605 987
1606static void __init build_r3000_tlb_load_handler(void) 988static void __init build_r3000_tlb_load_handler(void)
1607{ 989{
1608 u32 *p = handle_tlbl; 990 u32 *p = handle_tlbl;
1609 struct label *l = labels; 991 struct uasm_label *l = labels;
1610 struct reloc *r = relocs; 992 struct uasm_reloc *r = relocs;
1611 993
1612 memset(handle_tlbl, 0, sizeof(handle_tlbl)); 994 memset(handle_tlbl, 0, sizeof(handle_tlbl));
1613 memset(labels, 0, sizeof(labels)); 995 memset(labels, 0, sizeof(labels));
@@ -1615,20 +997,20 @@ static void __init build_r3000_tlb_load_handler(void)
1615 997
1616 build_r3000_tlbchange_handler_head(&p, K0, K1); 998 build_r3000_tlbchange_handler_head(&p, K0, K1);
1617 build_pte_present(&p, &l, &r, K0, K1, label_nopage_tlbl); 999 build_pte_present(&p, &l, &r, K0, K1, label_nopage_tlbl);
1618 i_nop(&p); /* load delay */ 1000 uasm_i_nop(&p); /* load delay */
1619 build_make_valid(&p, &r, K0, K1); 1001 build_make_valid(&p, &r, K0, K1);
1620 build_r3000_tlb_reload_write(&p, &l, &r, K0, K1); 1002 build_r3000_tlb_reload_write(&p, &l, &r, K0, K1);
1621 1003
1622 l_nopage_tlbl(&l, p); 1004 uasm_l_nopage_tlbl(&l, p);
1623 i_j(&p, (unsigned long)tlb_do_page_fault_0 & 0x0fffffff); 1005 uasm_i_j(&p, (unsigned long)tlb_do_page_fault_0 & 0x0fffffff);
1624 i_nop(&p); 1006 uasm_i_nop(&p);
1625 1007
1626 if ((p - handle_tlbl) > FASTPATH_SIZE) 1008 if ((p - handle_tlbl) > FASTPATH_SIZE)
1627 panic("TLB load handler fastpath space exceeded"); 1009 panic("TLB load handler fastpath space exceeded");
1628 1010
1629 resolve_relocs(relocs, labels); 1011 uasm_resolve_relocs(relocs, labels);
1630 pr_info("Synthesized TLB load handler fastpath (%u instructions).\n", 1012 pr_debug("Wrote TLB load handler fastpath (%u instructions).\n",
1631 (unsigned int)(p - handle_tlbl)); 1013 (unsigned int)(p - handle_tlbl));
1632 1014
1633 dump_handler(handle_tlbl, ARRAY_SIZE(handle_tlbl)); 1015 dump_handler(handle_tlbl, ARRAY_SIZE(handle_tlbl));
1634} 1016}
@@ -1636,8 +1018,8 @@ static void __init build_r3000_tlb_load_handler(void)
1636static void __init build_r3000_tlb_store_handler(void) 1018static void __init build_r3000_tlb_store_handler(void)
1637{ 1019{
1638 u32 *p = handle_tlbs; 1020 u32 *p = handle_tlbs;
1639 struct label *l = labels; 1021 struct uasm_label *l = labels;
1640 struct reloc *r = relocs; 1022 struct uasm_reloc *r = relocs;
1641 1023
1642 memset(handle_tlbs, 0, sizeof(handle_tlbs)); 1024 memset(handle_tlbs, 0, sizeof(handle_tlbs));
1643 memset(labels, 0, sizeof(labels)); 1025 memset(labels, 0, sizeof(labels));
@@ -1645,20 +1027,20 @@ static void __init build_r3000_tlb_store_handler(void)
1645 1027
1646 build_r3000_tlbchange_handler_head(&p, K0, K1); 1028 build_r3000_tlbchange_handler_head(&p, K0, K1);
1647 build_pte_writable(&p, &l, &r, K0, K1, label_nopage_tlbs); 1029 build_pte_writable(&p, &l, &r, K0, K1, label_nopage_tlbs);
1648 i_nop(&p); /* load delay */ 1030 uasm_i_nop(&p); /* load delay */
1649 build_make_write(&p, &r, K0, K1); 1031 build_make_write(&p, &r, K0, K1);
1650 build_r3000_tlb_reload_write(&p, &l, &r, K0, K1); 1032 build_r3000_tlb_reload_write(&p, &l, &r, K0, K1);
1651 1033
1652 l_nopage_tlbs(&l, p); 1034 uasm_l_nopage_tlbs(&l, p);
1653 i_j(&p, (unsigned long)tlb_do_page_fault_1 & 0x0fffffff); 1035 uasm_i_j(&p, (unsigned long)tlb_do_page_fault_1 & 0x0fffffff);
1654 i_nop(&p); 1036 uasm_i_nop(&p);
1655 1037
1656 if ((p - handle_tlbs) > FASTPATH_SIZE) 1038 if ((p - handle_tlbs) > FASTPATH_SIZE)
1657 panic("TLB store handler fastpath space exceeded"); 1039 panic("TLB store handler fastpath space exceeded");
1658 1040
1659 resolve_relocs(relocs, labels); 1041 uasm_resolve_relocs(relocs, labels);
1660 pr_info("Synthesized TLB store handler fastpath (%u instructions).\n", 1042 pr_debug("Wrote TLB store handler fastpath (%u instructions).\n",
1661 (unsigned int)(p - handle_tlbs)); 1043 (unsigned int)(p - handle_tlbs));
1662 1044
1663 dump_handler(handle_tlbs, ARRAY_SIZE(handle_tlbs)); 1045 dump_handler(handle_tlbs, ARRAY_SIZE(handle_tlbs));
1664} 1046}
@@ -1666,8 +1048,8 @@ static void __init build_r3000_tlb_store_handler(void)
1666static void __init build_r3000_tlb_modify_handler(void) 1048static void __init build_r3000_tlb_modify_handler(void)
1667{ 1049{
1668 u32 *p = handle_tlbm; 1050 u32 *p = handle_tlbm;
1669 struct label *l = labels; 1051 struct uasm_label *l = labels;
1670 struct reloc *r = relocs; 1052 struct uasm_reloc *r = relocs;
1671 1053
1672 memset(handle_tlbm, 0, sizeof(handle_tlbm)); 1054 memset(handle_tlbm, 0, sizeof(handle_tlbm));
1673 memset(labels, 0, sizeof(labels)); 1055 memset(labels, 0, sizeof(labels));
@@ -1675,20 +1057,20 @@ static void __init build_r3000_tlb_modify_handler(void)
1675 1057
1676 build_r3000_tlbchange_handler_head(&p, K0, K1); 1058 build_r3000_tlbchange_handler_head(&p, K0, K1);
1677 build_pte_modifiable(&p, &l, &r, K0, K1, label_nopage_tlbm); 1059 build_pte_modifiable(&p, &l, &r, K0, K1, label_nopage_tlbm);
1678 i_nop(&p); /* load delay */ 1060 uasm_i_nop(&p); /* load delay */
1679 build_make_write(&p, &r, K0, K1); 1061 build_make_write(&p, &r, K0, K1);
1680 build_r3000_pte_reload_tlbwi(&p, K0, K1); 1062 build_r3000_pte_reload_tlbwi(&p, K0, K1);
1681 1063
1682 l_nopage_tlbm(&l, p); 1064 uasm_l_nopage_tlbm(&l, p);
1683 i_j(&p, (unsigned long)tlb_do_page_fault_1 & 0x0fffffff); 1065 uasm_i_j(&p, (unsigned long)tlb_do_page_fault_1 & 0x0fffffff);
1684 i_nop(&p); 1066 uasm_i_nop(&p);
1685 1067
1686 if ((p - handle_tlbm) > FASTPATH_SIZE) 1068 if ((p - handle_tlbm) > FASTPATH_SIZE)
1687 panic("TLB modify handler fastpath space exceeded"); 1069 panic("TLB modify handler fastpath space exceeded");
1688 1070
1689 resolve_relocs(relocs, labels); 1071 uasm_resolve_relocs(relocs, labels);
1690 pr_info("Synthesized TLB modify handler fastpath (%u instructions).\n", 1072 pr_debug("Wrote TLB modify handler fastpath (%u instructions).\n",
1691 (unsigned int)(p - handle_tlbm)); 1073 (unsigned int)(p - handle_tlbm));
1692 1074
1693 dump_handler(handle_tlbm, ARRAY_SIZE(handle_tlbm)); 1075 dump_handler(handle_tlbm, ARRAY_SIZE(handle_tlbm));
1694} 1076}
@@ -1697,8 +1079,8 @@ static void __init build_r3000_tlb_modify_handler(void)
1697 * R4000 style TLB load/store/modify handlers. 1079 * R4000 style TLB load/store/modify handlers.
1698 */ 1080 */
1699static void __init 1081static void __init
1700build_r4000_tlbchange_handler_head(u32 **p, struct label **l, 1082build_r4000_tlbchange_handler_head(u32 **p, struct uasm_label **l,
1701 struct reloc **r, unsigned int pte, 1083 struct uasm_reloc **r, unsigned int pte,
1702 unsigned int ptr) 1084 unsigned int ptr)
1703{ 1085{
1704#ifdef CONFIG_64BIT 1086#ifdef CONFIG_64BIT
@@ -1707,31 +1089,31 @@ build_r4000_tlbchange_handler_head(u32 **p, struct label **l,
1707 build_get_pgde32(p, pte, ptr); /* get pgd in ptr */ 1089 build_get_pgde32(p, pte, ptr); /* get pgd in ptr */
1708#endif 1090#endif
1709 1091
1710 i_MFC0(p, pte, C0_BADVADDR); 1092 UASM_i_MFC0(p, pte, C0_BADVADDR);
1711 i_LW(p, ptr, 0, ptr); 1093 UASM_i_LW(p, ptr, 0, ptr);
1712 i_SRL(p, pte, pte, PAGE_SHIFT + PTE_ORDER - PTE_T_LOG2); 1094 UASM_i_SRL(p, pte, pte, PAGE_SHIFT + PTE_ORDER - PTE_T_LOG2);
1713 i_andi(p, pte, pte, (PTRS_PER_PTE - 1) << PTE_T_LOG2); 1095 uasm_i_andi(p, pte, pte, (PTRS_PER_PTE - 1) << PTE_T_LOG2);
1714 i_ADDU(p, ptr, ptr, pte); 1096 UASM_i_ADDU(p, ptr, ptr, pte);
1715 1097
1716#ifdef CONFIG_SMP 1098#ifdef CONFIG_SMP
1717 l_smp_pgtable_change(l, *p); 1099 uasm_l_smp_pgtable_change(l, *p);
1718# endif 1100#endif
1719 iPTE_LW(p, l, pte, ptr); /* get even pte */ 1101 iPTE_LW(p, l, pte, ptr); /* get even pte */
1720 if (!m4kc_tlbp_war()) 1102 if (!m4kc_tlbp_war())
1721 build_tlb_probe_entry(p); 1103 build_tlb_probe_entry(p);
1722} 1104}
1723 1105
1724static void __init 1106static void __init
1725build_r4000_tlbchange_handler_tail(u32 **p, struct label **l, 1107build_r4000_tlbchange_handler_tail(u32 **p, struct uasm_label **l,
1726 struct reloc **r, unsigned int tmp, 1108 struct uasm_reloc **r, unsigned int tmp,
1727 unsigned int ptr) 1109 unsigned int ptr)
1728{ 1110{
1729 i_ori(p, ptr, ptr, sizeof(pte_t)); 1111 uasm_i_ori(p, ptr, ptr, sizeof(pte_t));
1730 i_xori(p, ptr, ptr, sizeof(pte_t)); 1112 uasm_i_xori(p, ptr, ptr, sizeof(pte_t));
1731 build_update_entries(p, tmp, ptr); 1113 build_update_entries(p, tmp, ptr);
1732 build_tlb_write_entry(p, l, r, tlb_indexed); 1114 build_tlb_write_entry(p, l, r, tlb_indexed);
1733 l_leave(l, *p); 1115 uasm_l_leave(l, *p);
1734 i_eret(p); /* return from trap */ 1116 uasm_i_eret(p); /* return from trap */
1735 1117
1736#ifdef CONFIG_64BIT 1118#ifdef CONFIG_64BIT
1737 build_get_pgd_vmalloc64(p, l, r, tmp, ptr); 1119 build_get_pgd_vmalloc64(p, l, r, tmp, ptr);
@@ -1741,20 +1123,20 @@ build_r4000_tlbchange_handler_tail(u32 **p, struct label **l,
1741static void __init build_r4000_tlb_load_handler(void) 1123static void __init build_r4000_tlb_load_handler(void)
1742{ 1124{
1743 u32 *p = handle_tlbl; 1125 u32 *p = handle_tlbl;
1744 struct label *l = labels; 1126 struct uasm_label *l = labels;
1745 struct reloc *r = relocs; 1127 struct uasm_reloc *r = relocs;
1746 1128
1747 memset(handle_tlbl, 0, sizeof(handle_tlbl)); 1129 memset(handle_tlbl, 0, sizeof(handle_tlbl));
1748 memset(labels, 0, sizeof(labels)); 1130 memset(labels, 0, sizeof(labels));
1749 memset(relocs, 0, sizeof(relocs)); 1131 memset(relocs, 0, sizeof(relocs));
1750 1132
1751 if (bcm1250_m3_war()) { 1133 if (bcm1250_m3_war()) {
1752 i_MFC0(&p, K0, C0_BADVADDR); 1134 UASM_i_MFC0(&p, K0, C0_BADVADDR);
1753 i_MFC0(&p, K1, C0_ENTRYHI); 1135 UASM_i_MFC0(&p, K1, C0_ENTRYHI);
1754 i_xor(&p, K0, K0, K1); 1136 uasm_i_xor(&p, K0, K0, K1);
1755 i_SRL(&p, K0, K0, PAGE_SHIFT + 1); 1137 UASM_i_SRL(&p, K0, K0, PAGE_SHIFT + 1);
1756 il_bnez(&p, &r, K0, label_leave); 1138 uasm_il_bnez(&p, &r, K0, label_leave);
1757 /* No need for i_nop */ 1139 /* No need for uasm_i_nop */
1758 } 1140 }
1759 1141
1760 build_r4000_tlbchange_handler_head(&p, &l, &r, K0, K1); 1142 build_r4000_tlbchange_handler_head(&p, &l, &r, K0, K1);
@@ -1764,16 +1146,16 @@ static void __init build_r4000_tlb_load_handler(void)
1764 build_make_valid(&p, &r, K0, K1); 1146 build_make_valid(&p, &r, K0, K1);
1765 build_r4000_tlbchange_handler_tail(&p, &l, &r, K0, K1); 1147 build_r4000_tlbchange_handler_tail(&p, &l, &r, K0, K1);
1766 1148
1767 l_nopage_tlbl(&l, p); 1149 uasm_l_nopage_tlbl(&l, p);
1768 i_j(&p, (unsigned long)tlb_do_page_fault_0 & 0x0fffffff); 1150 uasm_i_j(&p, (unsigned long)tlb_do_page_fault_0 & 0x0fffffff);
1769 i_nop(&p); 1151 uasm_i_nop(&p);
1770 1152
1771 if ((p - handle_tlbl) > FASTPATH_SIZE) 1153 if ((p - handle_tlbl) > FASTPATH_SIZE)
1772 panic("TLB load handler fastpath space exceeded"); 1154 panic("TLB load handler fastpath space exceeded");
1773 1155
1774 resolve_relocs(relocs, labels); 1156 uasm_resolve_relocs(relocs, labels);
1775 pr_info("Synthesized TLB load handler fastpath (%u instructions).\n", 1157 pr_debug("Wrote TLB load handler fastpath (%u instructions).\n",
1776 (unsigned int)(p - handle_tlbl)); 1158 (unsigned int)(p - handle_tlbl));
1777 1159
1778 dump_handler(handle_tlbl, ARRAY_SIZE(handle_tlbl)); 1160 dump_handler(handle_tlbl, ARRAY_SIZE(handle_tlbl));
1779} 1161}
@@ -1781,8 +1163,8 @@ static void __init build_r4000_tlb_load_handler(void)
1781static void __init build_r4000_tlb_store_handler(void) 1163static void __init build_r4000_tlb_store_handler(void)
1782{ 1164{
1783 u32 *p = handle_tlbs; 1165 u32 *p = handle_tlbs;
1784 struct label *l = labels; 1166 struct uasm_label *l = labels;
1785 struct reloc *r = relocs; 1167 struct uasm_reloc *r = relocs;
1786 1168
1787 memset(handle_tlbs, 0, sizeof(handle_tlbs)); 1169 memset(handle_tlbs, 0, sizeof(handle_tlbs));
1788 memset(labels, 0, sizeof(labels)); 1170 memset(labels, 0, sizeof(labels));
@@ -1795,16 +1177,16 @@ static void __init build_r4000_tlb_store_handler(void)
1795 build_make_write(&p, &r, K0, K1); 1177 build_make_write(&p, &r, K0, K1);
1796 build_r4000_tlbchange_handler_tail(&p, &l, &r, K0, K1); 1178 build_r4000_tlbchange_handler_tail(&p, &l, &r, K0, K1);
1797 1179
1798 l_nopage_tlbs(&l, p); 1180 uasm_l_nopage_tlbs(&l, p);
1799 i_j(&p, (unsigned long)tlb_do_page_fault_1 & 0x0fffffff); 1181 uasm_i_j(&p, (unsigned long)tlb_do_page_fault_1 & 0x0fffffff);
1800 i_nop(&p); 1182 uasm_i_nop(&p);
1801 1183
1802 if ((p - handle_tlbs) > FASTPATH_SIZE) 1184 if ((p - handle_tlbs) > FASTPATH_SIZE)
1803 panic("TLB store handler fastpath space exceeded"); 1185 panic("TLB store handler fastpath space exceeded");
1804 1186
1805 resolve_relocs(relocs, labels); 1187 uasm_resolve_relocs(relocs, labels);
1806 pr_info("Synthesized TLB store handler fastpath (%u instructions).\n", 1188 pr_debug("Wrote TLB store handler fastpath (%u instructions).\n",
1807 (unsigned int)(p - handle_tlbs)); 1189 (unsigned int)(p - handle_tlbs));
1808 1190
1809 dump_handler(handle_tlbs, ARRAY_SIZE(handle_tlbs)); 1191 dump_handler(handle_tlbs, ARRAY_SIZE(handle_tlbs));
1810} 1192}
@@ -1812,8 +1194,8 @@ static void __init build_r4000_tlb_store_handler(void)
1812static void __init build_r4000_tlb_modify_handler(void) 1194static void __init build_r4000_tlb_modify_handler(void)
1813{ 1195{
1814 u32 *p = handle_tlbm; 1196 u32 *p = handle_tlbm;
1815 struct label *l = labels; 1197 struct uasm_label *l = labels;
1816 struct reloc *r = relocs; 1198 struct uasm_reloc *r = relocs;
1817 1199
1818 memset(handle_tlbm, 0, sizeof(handle_tlbm)); 1200 memset(handle_tlbm, 0, sizeof(handle_tlbm));
1819 memset(labels, 0, sizeof(labels)); 1201 memset(labels, 0, sizeof(labels));
@@ -1827,16 +1209,16 @@ static void __init build_r4000_tlb_modify_handler(void)
1827 build_make_write(&p, &r, K0, K1); 1209 build_make_write(&p, &r, K0, K1);
1828 build_r4000_tlbchange_handler_tail(&p, &l, &r, K0, K1); 1210 build_r4000_tlbchange_handler_tail(&p, &l, &r, K0, K1);
1829 1211
1830 l_nopage_tlbm(&l, p); 1212 uasm_l_nopage_tlbm(&l, p);
1831 i_j(&p, (unsigned long)tlb_do_page_fault_1 & 0x0fffffff); 1213 uasm_i_j(&p, (unsigned long)tlb_do_page_fault_1 & 0x0fffffff);
1832 i_nop(&p); 1214 uasm_i_nop(&p);
1833 1215
1834 if ((p - handle_tlbm) > FASTPATH_SIZE) 1216 if ((p - handle_tlbm) > FASTPATH_SIZE)
1835 panic("TLB modify handler fastpath space exceeded"); 1217 panic("TLB modify handler fastpath space exceeded");
1836 1218
1837 resolve_relocs(relocs, labels); 1219 uasm_resolve_relocs(relocs, labels);
1838 pr_info("Synthesized TLB modify handler fastpath (%u instructions).\n", 1220 pr_debug("Wrote TLB modify handler fastpath (%u instructions).\n",
1839 (unsigned int)(p - handle_tlbm)); 1221 (unsigned int)(p - handle_tlbm));
1840 1222
1841 dump_handler(handle_tlbm, ARRAY_SIZE(handle_tlbm)); 1223 dump_handler(handle_tlbm, ARRAY_SIZE(handle_tlbm));
1842} 1224}
diff --git a/arch/mips/mm/uasm.c b/arch/mips/mm/uasm.c
new file mode 100644
index 000000000000..e3f74ed5f704
--- /dev/null
+++ b/arch/mips/mm/uasm.c
@@ -0,0 +1,576 @@
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 * A small micro-assembler. It is intentionally kept simple, does only
7 * support a subset of instructions, and does not try to hide pipeline
8 * effects like branch delay slots.
9 *
10 * Copyright (C) 2004, 2005, 2006, 2008 Thiemo Seufer
11 * Copyright (C) 2005, 2007 Maciej W. Rozycki
12 * Copyright (C) 2006 Ralf Baechle (ralf@linux-mips.org)
13 */
14
15#include <linux/kernel.h>
16#include <linux/types.h>
17#include <linux/init.h>
18
19#include <asm/inst.h>
20#include <asm/elf.h>
21#include <asm/bugs.h>
22
23#include "uasm.h"
24
25enum fields {
26 RS = 0x001,
27 RT = 0x002,
28 RD = 0x004,
29 RE = 0x008,
30 SIMM = 0x010,
31 UIMM = 0x020,
32 BIMM = 0x040,
33 JIMM = 0x080,
34 FUNC = 0x100,
35 SET = 0x200
36};
37
38#define OP_MASK 0x3f
39#define OP_SH 26
40#define RS_MASK 0x1f
41#define RS_SH 21
42#define RT_MASK 0x1f
43#define RT_SH 16
44#define RD_MASK 0x1f
45#define RD_SH 11
46#define RE_MASK 0x1f
47#define RE_SH 6
48#define IMM_MASK 0xffff
49#define IMM_SH 0
50#define JIMM_MASK 0x3ffffff
51#define JIMM_SH 0
52#define FUNC_MASK 0x3f
53#define FUNC_SH 0
54#define SET_MASK 0x7
55#define SET_SH 0
56
57enum opcode {
58 insn_invalid,
59 insn_addu, insn_addiu, insn_and, insn_andi, insn_beq,
60 insn_beql, insn_bgez, insn_bgezl, insn_bltz, insn_bltzl,
61 insn_bne, insn_daddu, insn_daddiu, insn_dmfc0, insn_dmtc0,
62 insn_dsll, insn_dsll32, insn_dsra, insn_dsrl, insn_dsrl32,
63 insn_dsubu, insn_eret, insn_j, insn_jal, insn_jr, insn_ld,
64 insn_ll, insn_lld, insn_lui, insn_lw, insn_mfc0, insn_mtc0,
65 insn_ori, insn_rfe, insn_sc, insn_scd, insn_sd, insn_sll,
66 insn_sra, insn_srl, insn_subu, insn_sw, insn_tlbp, insn_tlbwi,
67 insn_tlbwr, insn_xor, insn_xori
68};
69
70struct insn {
71 enum opcode opcode;
72 u32 match;
73 enum fields fields;
74};
75
76/* This macro sets the non-variable bits of an instruction. */
77#define M(a, b, c, d, e, f) \
78 ((a) << OP_SH \
79 | (b) << RS_SH \
80 | (c) << RT_SH \
81 | (d) << RD_SH \
82 | (e) << RE_SH \
83 | (f) << FUNC_SH)
84
85static struct insn insn_table[] __initdata = {
86 { insn_addiu, M(addiu_op, 0, 0, 0, 0, 0), RS | RT | SIMM },
87 { insn_addu, M(spec_op, 0, 0, 0, 0, addu_op), RS | RT | RD },
88 { insn_and, M(spec_op, 0, 0, 0, 0, and_op), RS | RT | RD },
89 { insn_andi, M(andi_op, 0, 0, 0, 0, 0), RS | RT | UIMM },
90 { insn_beq, M(beq_op, 0, 0, 0, 0, 0), RS | RT | BIMM },
91 { insn_beql, M(beql_op, 0, 0, 0, 0, 0), RS | RT | BIMM },
92 { insn_bgez, M(bcond_op, 0, bgez_op, 0, 0, 0), RS | BIMM },
93 { insn_bgezl, M(bcond_op, 0, bgezl_op, 0, 0, 0), RS | BIMM },
94 { insn_bltz, M(bcond_op, 0, bltz_op, 0, 0, 0), RS | BIMM },
95 { insn_bltzl, M(bcond_op, 0, bltzl_op, 0, 0, 0), RS | BIMM },
96 { insn_bne, M(bne_op, 0, 0, 0, 0, 0), RS | RT | BIMM },
97 { insn_daddiu, M(daddiu_op, 0, 0, 0, 0, 0), RS | RT | SIMM },
98 { insn_daddu, M(spec_op, 0, 0, 0, 0, daddu_op), RS | RT | RD },
99 { insn_dmfc0, M(cop0_op, dmfc_op, 0, 0, 0, 0), RT | RD | SET},
100 { insn_dmtc0, M(cop0_op, dmtc_op, 0, 0, 0, 0), RT | RD | SET},
101 { insn_dsll, M(spec_op, 0, 0, 0, 0, dsll_op), RT | RD | RE },
102 { insn_dsll32, M(spec_op, 0, 0, 0, 0, dsll32_op), RT | RD | RE },
103 { insn_dsra, M(spec_op, 0, 0, 0, 0, dsra_op), RT | RD | RE },
104 { insn_dsrl, M(spec_op, 0, 0, 0, 0, dsrl_op), RT | RD | RE },
105 { insn_dsrl32, M(spec_op, 0, 0, 0, 0, dsrl32_op), RT | RD | RE },
106 { insn_dsubu, M(spec_op, 0, 0, 0, 0, dsubu_op), RS | RT | RD },
107 { insn_eret, M(cop0_op, cop_op, 0, 0, 0, eret_op), 0 },
108 { insn_j, M(j_op, 0, 0, 0, 0, 0), JIMM },
109 { insn_jal, M(jal_op, 0, 0, 0, 0, 0), JIMM },
110 { insn_jr, M(spec_op, 0, 0, 0, 0, jr_op), RS },
111 { insn_ld, M(ld_op, 0, 0, 0, 0, 0), RS | RT | SIMM },
112 { insn_ll, M(ll_op, 0, 0, 0, 0, 0), RS | RT | SIMM },
113 { insn_lld, M(lld_op, 0, 0, 0, 0, 0), RS | RT | SIMM },
114 { insn_lui, M(lui_op, 0, 0, 0, 0, 0), RT | SIMM },
115 { insn_lw, M(lw_op, 0, 0, 0, 0, 0), RS | RT | SIMM },
116 { insn_mfc0, M(cop0_op, mfc_op, 0, 0, 0, 0), RT | RD | SET},
117 { insn_mtc0, M(cop0_op, mtc_op, 0, 0, 0, 0), RT | RD | SET},
118 { insn_ori, M(ori_op, 0, 0, 0, 0, 0), RS | RT | UIMM },
119 { insn_rfe, M(cop0_op, cop_op, 0, 0, 0, rfe_op), 0 },
120 { insn_sc, M(sc_op, 0, 0, 0, 0, 0), RS | RT | SIMM },
121 { insn_scd, M(scd_op, 0, 0, 0, 0, 0), RS | RT | SIMM },
122 { insn_sd, M(sd_op, 0, 0, 0, 0, 0), RS | RT | SIMM },
123 { insn_sll, M(spec_op, 0, 0, 0, 0, sll_op), RT | RD | RE },
124 { insn_sra, M(spec_op, 0, 0, 0, 0, sra_op), RT | RD | RE },
125 { insn_srl, M(spec_op, 0, 0, 0, 0, srl_op), RT | RD | RE },
126 { insn_subu, M(spec_op, 0, 0, 0, 0, subu_op), RS | RT | RD },
127 { insn_sw, M(sw_op, 0, 0, 0, 0, 0), RS | RT | SIMM },
128 { insn_tlbp, M(cop0_op, cop_op, 0, 0, 0, tlbp_op), 0 },
129 { insn_tlbwi, M(cop0_op, cop_op, 0, 0, 0, tlbwi_op), 0 },
130 { insn_tlbwr, M(cop0_op, cop_op, 0, 0, 0, tlbwr_op), 0 },
131 { insn_xor, M(spec_op, 0, 0, 0, 0, xor_op), RS | RT | RD },
132 { insn_xori, M(xori_op, 0, 0, 0, 0, 0), RS | RT | UIMM },
133 { insn_invalid, 0, 0 }
134};
135
136#undef M
137
138static inline __init u32 build_rs(u32 arg)
139{
140 if (arg & ~RS_MASK)
141 printk(KERN_WARNING "Micro-assembler field overflow\n");
142
143 return (arg & RS_MASK) << RS_SH;
144}
145
146static inline __init u32 build_rt(u32 arg)
147{
148 if (arg & ~RT_MASK)
149 printk(KERN_WARNING "Micro-assembler field overflow\n");
150
151 return (arg & RT_MASK) << RT_SH;
152}
153
154static inline __init u32 build_rd(u32 arg)
155{
156 if (arg & ~RD_MASK)
157 printk(KERN_WARNING "Micro-assembler field overflow\n");
158
159 return (arg & RD_MASK) << RD_SH;
160}
161
162static inline __init u32 build_re(u32 arg)
163{
164 if (arg & ~RE_MASK)
165 printk(KERN_WARNING "Micro-assembler field overflow\n");
166
167 return (arg & RE_MASK) << RE_SH;
168}
169
170static inline __init u32 build_simm(s32 arg)
171{
172 if (arg > 0x7fff || arg < -0x8000)
173 printk(KERN_WARNING "Micro-assembler field overflow\n");
174
175 return arg & 0xffff;
176}
177
178static inline __init u32 build_uimm(u32 arg)
179{
180 if (arg & ~IMM_MASK)
181 printk(KERN_WARNING "Micro-assembler field overflow\n");
182
183 return arg & IMM_MASK;
184}
185
186static inline __init u32 build_bimm(s32 arg)
187{
188 if (arg > 0x1ffff || arg < -0x20000)
189 printk(KERN_WARNING "Micro-assembler field overflow\n");
190
191 if (arg & 0x3)
192 printk(KERN_WARNING "Invalid micro-assembler branch target\n");
193
194 return ((arg < 0) ? (1 << 15) : 0) | ((arg >> 2) & 0x7fff);
195}
196
197static inline __init u32 build_jimm(u32 arg)
198{
199 if (arg & ~((JIMM_MASK) << 2))
200 printk(KERN_WARNING "Micro-assembler field overflow\n");
201
202 return (arg >> 2) & JIMM_MASK;
203}
204
205static inline __init u32 build_func(u32 arg)
206{
207 if (arg & ~FUNC_MASK)
208 printk(KERN_WARNING "Micro-assembler field overflow\n");
209
210 return arg & FUNC_MASK;
211}
212
213static inline __init u32 build_set(u32 arg)
214{
215 if (arg & ~SET_MASK)
216 printk(KERN_WARNING "Micro-assembler field overflow\n");
217
218 return arg & SET_MASK;
219}
220
221/*
222 * The order of opcode arguments is implicitly left to right,
223 * starting with RS and ending with FUNC or IMM.
224 */
225static void __init build_insn(u32 **buf, enum opcode opc, ...)
226{
227 struct insn *ip = NULL;
228 unsigned int i;
229 va_list ap;
230 u32 op;
231
232 for (i = 0; insn_table[i].opcode != insn_invalid; i++)
233 if (insn_table[i].opcode == opc) {
234 ip = &insn_table[i];
235 break;
236 }
237
238 if (!ip || (opc == insn_daddiu && r4k_daddiu_bug()))
239 panic("Unsupported Micro-assembler instruction %d", opc);
240
241 op = ip->match;
242 va_start(ap, opc);
243 if (ip->fields & RS)
244 op |= build_rs(va_arg(ap, u32));
245 if (ip->fields & RT)
246 op |= build_rt(va_arg(ap, u32));
247 if (ip->fields & RD)
248 op |= build_rd(va_arg(ap, u32));
249 if (ip->fields & RE)
250 op |= build_re(va_arg(ap, u32));
251 if (ip->fields & SIMM)
252 op |= build_simm(va_arg(ap, s32));
253 if (ip->fields & UIMM)
254 op |= build_uimm(va_arg(ap, u32));
255 if (ip->fields & BIMM)
256 op |= build_bimm(va_arg(ap, s32));
257 if (ip->fields & JIMM)
258 op |= build_jimm(va_arg(ap, u32));
259 if (ip->fields & FUNC)
260 op |= build_func(va_arg(ap, u32));
261 if (ip->fields & SET)
262 op |= build_set(va_arg(ap, u32));
263 va_end(ap);
264
265 **buf = op;
266 (*buf)++;
267}
268
269#define I_u1u2u3(op) \
270Ip_u1u2u3(op) \
271{ \
272 build_insn(buf, insn##op, a, b, c); \
273}
274
275#define I_u2u1u3(op) \
276Ip_u2u1u3(op) \
277{ \
278 build_insn(buf, insn##op, b, a, c); \
279}
280
281#define I_u3u1u2(op) \
282Ip_u3u1u2(op) \
283{ \
284 build_insn(buf, insn##op, b, c, a); \
285}
286
287#define I_u1u2s3(op) \
288Ip_u1u2s3(op) \
289{ \
290 build_insn(buf, insn##op, a, b, c); \
291}
292
293#define I_u2s3u1(op) \
294Ip_u2s3u1(op) \
295{ \
296 build_insn(buf, insn##op, c, a, b); \
297}
298
299#define I_u2u1s3(op) \
300Ip_u2u1s3(op) \
301{ \
302 build_insn(buf, insn##op, b, a, c); \
303}
304
305#define I_u1u2(op) \
306Ip_u1u2(op) \
307{ \
308 build_insn(buf, insn##op, a, b); \
309}
310
311#define I_u1s2(op) \
312Ip_u1s2(op) \
313{ \
314 build_insn(buf, insn##op, a, b); \
315}
316
317#define I_u1(op) \
318Ip_u1(op) \
319{ \
320 build_insn(buf, insn##op, a); \
321}
322
323#define I_0(op) \
324Ip_0(op) \
325{ \
326 build_insn(buf, insn##op); \
327}
328
329I_u2u1s3(_addiu)
330I_u3u1u2(_addu)
331I_u2u1u3(_andi)
332I_u3u1u2(_and)
333I_u1u2s3(_beq)
334I_u1u2s3(_beql)
335I_u1s2(_bgez)
336I_u1s2(_bgezl)
337I_u1s2(_bltz)
338I_u1s2(_bltzl)
339I_u1u2s3(_bne)
340I_u1u2u3(_dmfc0)
341I_u1u2u3(_dmtc0)
342I_u2u1s3(_daddiu)
343I_u3u1u2(_daddu)
344I_u2u1u3(_dsll)
345I_u2u1u3(_dsll32)
346I_u2u1u3(_dsra)
347I_u2u1u3(_dsrl)
348I_u2u1u3(_dsrl32)
349I_u3u1u2(_dsubu)
350I_0(_eret)
351I_u1(_j)
352I_u1(_jal)
353I_u1(_jr)
354I_u2s3u1(_ld)
355I_u2s3u1(_ll)
356I_u2s3u1(_lld)
357I_u1s2(_lui)
358I_u2s3u1(_lw)
359I_u1u2u3(_mfc0)
360I_u1u2u3(_mtc0)
361I_u2u1u3(_ori)
362I_0(_rfe)
363I_u2s3u1(_sc)
364I_u2s3u1(_scd)
365I_u2s3u1(_sd)
366I_u2u1u3(_sll)
367I_u2u1u3(_sra)
368I_u2u1u3(_srl)
369I_u3u1u2(_subu)
370I_u2s3u1(_sw)
371I_0(_tlbp)
372I_0(_tlbwi)
373I_0(_tlbwr)
374I_u3u1u2(_xor)
375I_u2u1u3(_xori)
376
377/* Handle labels. */
378void __init uasm_build_label(struct uasm_label **lab, u32 *addr, int lid)
379{
380 (*lab)->addr = addr;
381 (*lab)->lab = lid;
382 (*lab)++;
383}
384
385int __init uasm_in_compat_space_p(long addr)
386{
387 /* Is this address in 32bit compat space? */
388#ifdef CONFIG_64BIT
389 return (((addr) & 0xffffffff00000000L) == 0xffffffff00000000L);
390#else
391 return 1;
392#endif
393}
394
395int __init uasm_rel_highest(long val)
396{
397#ifdef CONFIG_64BIT
398 return ((((val + 0x800080008000L) >> 48) & 0xffff) ^ 0x8000) - 0x8000;
399#else
400 return 0;
401#endif
402}
403
404int __init uasm_rel_higher(long val)
405{
406#ifdef CONFIG_64BIT
407 return ((((val + 0x80008000L) >> 32) & 0xffff) ^ 0x8000) - 0x8000;
408#else
409 return 0;
410#endif
411}
412
413int __init uasm_rel_hi(long val)
414{
415 return ((((val + 0x8000L) >> 16) & 0xffff) ^ 0x8000) - 0x8000;
416}
417
418int __init uasm_rel_lo(long val)
419{
420 return ((val & 0xffff) ^ 0x8000) - 0x8000;
421}
422
423void __init UASM_i_LA_mostly(u32 **buf, unsigned int rs, long addr)
424{
425 if (!uasm_in_compat_space_p(addr)) {
426 uasm_i_lui(buf, rs, uasm_rel_highest(addr));
427 if (uasm_rel_higher(addr))
428 uasm_i_daddiu(buf, rs, rs, uasm_rel_higher(addr));
429 if (uasm_rel_hi(addr)) {
430 uasm_i_dsll(buf, rs, rs, 16);
431 uasm_i_daddiu(buf, rs, rs, uasm_rel_hi(addr));
432 uasm_i_dsll(buf, rs, rs, 16);
433 } else
434 uasm_i_dsll32(buf, rs, rs, 0);
435 } else
436 uasm_i_lui(buf, rs, uasm_rel_hi(addr));
437}
438
439void __init UASM_i_LA(u32 **buf, unsigned int rs, long addr)
440{
441 UASM_i_LA_mostly(buf, rs, addr);
442 if (uasm_rel_lo(addr)) {
443 if (!uasm_in_compat_space_p(addr))
444 uasm_i_daddiu(buf, rs, rs, uasm_rel_lo(addr));
445 else
446 uasm_i_addiu(buf, rs, rs, uasm_rel_lo(addr));
447 }
448}
449
450/* Handle relocations. */
451void __init
452uasm_r_mips_pc16(struct uasm_reloc **rel, u32 *addr, int lid)
453{
454 (*rel)->addr = addr;
455 (*rel)->type = R_MIPS_PC16;
456 (*rel)->lab = lid;
457 (*rel)++;
458}
459
460static inline void __init
461__resolve_relocs(struct uasm_reloc *rel, struct uasm_label *lab)
462{
463 long laddr = (long)lab->addr;
464 long raddr = (long)rel->addr;
465
466 switch (rel->type) {
467 case R_MIPS_PC16:
468 *rel->addr |= build_bimm(laddr - (raddr + 4));
469 break;
470
471 default:
472 panic("Unsupported Micro-assembler relocation %d",
473 rel->type);
474 }
475}
476
477void __init
478uasm_resolve_relocs(struct uasm_reloc *rel, struct uasm_label *lab)
479{
480 struct uasm_label *l;
481
482 for (; rel->lab != UASM_LABEL_INVALID; rel++)
483 for (l = lab; l->lab != UASM_LABEL_INVALID; l++)
484 if (rel->lab == l->lab)
485 __resolve_relocs(rel, l);
486}
487
488void __init
489uasm_move_relocs(struct uasm_reloc *rel, u32 *first, u32 *end, long off)
490{
491 for (; rel->lab != UASM_LABEL_INVALID; rel++)
492 if (rel->addr >= first && rel->addr < end)
493 rel->addr += off;
494}
495
496void __init
497uasm_move_labels(struct uasm_label *lab, u32 *first, u32 *end, long off)
498{
499 for (; lab->lab != UASM_LABEL_INVALID; lab++)
500 if (lab->addr >= first && lab->addr < end)
501 lab->addr += off;
502}
503
504void __init
505uasm_copy_handler(struct uasm_reloc *rel, struct uasm_label *lab, u32 *first,
506 u32 *end, u32 *target)
507{
508 long off = (long)(target - first);
509
510 memcpy(target, first, (end - first) * sizeof(u32));
511
512 uasm_move_relocs(rel, first, end, off);
513 uasm_move_labels(lab, first, end, off);
514}
515
516int __init uasm_insn_has_bdelay(struct uasm_reloc *rel, u32 *addr)
517{
518 for (; rel->lab != UASM_LABEL_INVALID; rel++) {
519 if (rel->addr == addr
520 && (rel->type == R_MIPS_PC16
521 || rel->type == R_MIPS_26))
522 return 1;
523 }
524
525 return 0;
526}
527
528/* Convenience functions for labeled branches. */
529void __init
530uasm_il_bltz(u32 **p, struct uasm_reloc **r, unsigned int reg, int lid)
531{
532 uasm_r_mips_pc16(r, *p, lid);
533 uasm_i_bltz(p, reg, 0);
534}
535
536void __init
537uasm_il_b(u32 **p, struct uasm_reloc **r, int lid)
538{
539 uasm_r_mips_pc16(r, *p, lid);
540 uasm_i_b(p, 0);
541}
542
543void __init
544uasm_il_beqz(u32 **p, struct uasm_reloc **r, unsigned int reg, int lid)
545{
546 uasm_r_mips_pc16(r, *p, lid);
547 uasm_i_beqz(p, reg, 0);
548}
549
550void __init
551uasm_il_beqzl(u32 **p, struct uasm_reloc **r, unsigned int reg, int lid)
552{
553 uasm_r_mips_pc16(r, *p, lid);
554 uasm_i_beqzl(p, reg, 0);
555}
556
557void __init
558uasm_il_bnez(u32 **p, struct uasm_reloc **r, unsigned int reg, int lid)
559{
560 uasm_r_mips_pc16(r, *p, lid);
561 uasm_i_bnez(p, reg, 0);
562}
563
564void __init
565uasm_il_bgezl(u32 **p, struct uasm_reloc **r, unsigned int reg, int lid)
566{
567 uasm_r_mips_pc16(r, *p, lid);
568 uasm_i_bgezl(p, reg, 0);
569}
570
571void __init
572uasm_il_bgez(u32 **p, struct uasm_reloc **r, unsigned int reg, int lid)
573{
574 uasm_r_mips_pc16(r, *p, lid);
575 uasm_i_bgez(p, reg, 0);
576}
diff --git a/arch/mips/mm/uasm.h b/arch/mips/mm/uasm.h
new file mode 100644
index 000000000000..a10fc1135c76
--- /dev/null
+++ b/arch/mips/mm/uasm.h
@@ -0,0 +1,192 @@
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 */
10
11#include <linux/types.h>
12
13#define Ip_u1u2u3(op) \
14void __init \
15uasm_i##op(u32 **buf, unsigned int a, unsigned int b, unsigned int c)
16
17#define Ip_u2u1u3(op) \
18void __init \
19uasm_i##op(u32 **buf, unsigned int a, unsigned int b, unsigned int c)
20
21#define Ip_u3u1u2(op) \
22void __init \
23uasm_i##op(u32 **buf, unsigned int a, unsigned int b, unsigned int c)
24
25#define Ip_u1u2s3(op) \
26void __init \
27uasm_i##op(u32 **buf, unsigned int a, unsigned int b, signed int c)
28
29#define Ip_u2s3u1(op) \
30void __init \
31uasm_i##op(u32 **buf, unsigned int a, signed int b, unsigned int c)
32
33#define Ip_u2u1s3(op) \
34void __init \
35uasm_i##op(u32 **buf, unsigned int a, unsigned int b, signed int c)
36
37#define Ip_u1u2(op) \
38void __init uasm_i##op(u32 **buf, unsigned int a, unsigned int b)
39
40#define Ip_u1s2(op) \
41void __init uasm_i##op(u32 **buf, unsigned int a, signed int b)
42
43#define Ip_u1(op) void __init uasm_i##op(u32 **buf, unsigned int a)
44
45#define Ip_0(op) void __init uasm_i##op(u32 **buf)
46
47Ip_u2u1s3(_addiu);
48Ip_u3u1u2(_addu);
49Ip_u2u1u3(_andi);
50Ip_u3u1u2(_and);
51Ip_u1u2s3(_beq);
52Ip_u1u2s3(_beql);
53Ip_u1s2(_bgez);
54Ip_u1s2(_bgezl);
55Ip_u1s2(_bltz);
56Ip_u1s2(_bltzl);
57Ip_u1u2s3(_bne);
58Ip_u1u2u3(_dmfc0);
59Ip_u1u2u3(_dmtc0);
60Ip_u2u1s3(_daddiu);
61Ip_u3u1u2(_daddu);
62Ip_u2u1u3(_dsll);
63Ip_u2u1u3(_dsll32);
64Ip_u2u1u3(_dsra);
65Ip_u2u1u3(_dsrl);
66Ip_u2u1u3(_dsrl32);
67Ip_u3u1u2(_dsubu);
68Ip_0(_eret);
69Ip_u1(_j);
70Ip_u1(_jal);
71Ip_u1(_jr);
72Ip_u2s3u1(_ld);
73Ip_u2s3u1(_ll);
74Ip_u2s3u1(_lld);
75Ip_u1s2(_lui);
76Ip_u2s3u1(_lw);
77Ip_u1u2u3(_mfc0);
78Ip_u1u2u3(_mtc0);
79Ip_u2u1u3(_ori);
80Ip_0(_rfe);
81Ip_u2s3u1(_sc);
82Ip_u2s3u1(_scd);
83Ip_u2s3u1(_sd);
84Ip_u2u1u3(_sll);
85Ip_u2u1u3(_sra);
86Ip_u2u1u3(_srl);
87Ip_u3u1u2(_subu);
88Ip_u2s3u1(_sw);
89Ip_0(_tlbp);
90Ip_0(_tlbwi);
91Ip_0(_tlbwr);
92Ip_u3u1u2(_xor);
93Ip_u2u1u3(_xori);
94
95/* Handle labels. */
96struct uasm_label {
97 u32 *addr;
98 int lab;
99};
100
101void __init uasm_build_label(struct uasm_label **lab, u32 *addr, int lid);
102#ifdef CONFIG_64BIT
103int __init uasm_in_compat_space_p(long addr);
104int __init uasm_rel_highest(long val);
105int __init uasm_rel_higher(long val);
106#endif
107int __init uasm_rel_hi(long val);
108int __init uasm_rel_lo(long val);
109void __init UASM_i_LA_mostly(u32 **buf, unsigned int rs, long addr);
110void __init UASM_i_LA(u32 **buf, unsigned int rs, long addr);
111
112#define UASM_L_LA(lb) \
113static inline void __init uasm_l##lb(struct uasm_label **lab, u32 *addr) \
114{ \
115 uasm_build_label(lab, addr, label##lb); \
116}
117
118/* convenience macros for instructions */
119#ifdef CONFIG_64BIT
120# define UASM_i_LW(buf, rs, rt, off) uasm_i_ld(buf, rs, rt, off)
121# define UASM_i_SW(buf, rs, rt, off) uasm_i_sd(buf, rs, rt, off)
122# define UASM_i_SLL(buf, rs, rt, sh) uasm_i_dsll(buf, rs, rt, sh)
123# define UASM_i_SRA(buf, rs, rt, sh) uasm_i_dsra(buf, rs, rt, sh)
124# define UASM_i_SRL(buf, rs, rt, sh) uasm_i_dsrl(buf, rs, rt, sh)
125# define UASM_i_MFC0(buf, rt, rd...) uasm_i_dmfc0(buf, rt, rd)
126# define UASM_i_MTC0(buf, rt, rd...) uasm_i_dmtc0(buf, rt, rd)
127# define UASM_i_ADDIU(buf, rs, rt, val) uasm_i_daddiu(buf, rs, rt, val)
128# define UASM_i_ADDU(buf, rs, rt, rd) uasm_i_daddu(buf, rs, rt, rd)
129# define UASM_i_SUBU(buf, rs, rt, rd) uasm_i_dsubu(buf, rs, rt, rd)
130# define UASM_i_LL(buf, rs, rt, off) uasm_i_lld(buf, rs, rt, off)
131# define UASM_i_SC(buf, rs, rt, off) uasm_i_scd(buf, rs, rt, off)
132#else
133# define UASM_i_LW(buf, rs, rt, off) uasm_i_lw(buf, rs, rt, off)
134# define UASM_i_SW(buf, rs, rt, off) uasm_i_sw(buf, rs, rt, off)
135# define UASM_i_SLL(buf, rs, rt, sh) uasm_i_sll(buf, rs, rt, sh)
136# define UASM_i_SRA(buf, rs, rt, sh) uasm_i_sra(buf, rs, rt, sh)
137# define UASM_i_SRL(buf, rs, rt, sh) uasm_i_srl(buf, rs, rt, sh)
138# define UASM_i_MFC0(buf, rt, rd...) uasm_i_mfc0(buf, rt, rd)
139# define UASM_i_MTC0(buf, rt, rd...) uasm_i_mtc0(buf, rt, rd)
140# define UASM_i_ADDIU(buf, rs, rt, val) uasm_i_addiu(buf, rs, rt, val)
141# define UASM_i_ADDU(buf, rs, rt, rd) uasm_i_addu(buf, rs, rt, rd)
142# define UASM_i_SUBU(buf, rs, rt, rd) uasm_i_subu(buf, rs, rt, rd)
143# define UASM_i_LL(buf, rs, rt, off) uasm_i_ll(buf, rs, rt, off)
144# define UASM_i_SC(buf, rs, rt, off) uasm_i_sc(buf, rs, rt, off)
145#endif
146
147#define uasm_i_b(buf, off) uasm_i_beq(buf, 0, 0, off)
148#define uasm_i_beqz(buf, rs, off) uasm_i_beq(buf, rs, 0, off)
149#define uasm_i_beqzl(buf, rs, off) uasm_i_beql(buf, rs, 0, off)
150#define uasm_i_bnez(buf, rs, off) uasm_i_bne(buf, rs, 0, off)
151#define uasm_i_bnezl(buf, rs, off) uasm_i_bnel(buf, rs, 0, off)
152#define uasm_i_move(buf, a, b) UASM_i_ADDU(buf, a, 0, b)
153#define uasm_i_nop(buf) uasm_i_sll(buf, 0, 0, 0)
154#define uasm_i_ssnop(buf) uasm_i_sll(buf, 0, 0, 1)
155#define uasm_i_ehb(buf) uasm_i_sll(buf, 0, 0, 3)
156
157/* Handle relocations. */
158struct uasm_reloc {
159 u32 *addr;
160 unsigned int type;
161 int lab;
162};
163
164/* This is zero so we can use zeroed label arrays. */
165#define UASM_LABEL_INVALID 0
166
167void __init uasm_r_mips_pc16(struct uasm_reloc **rel, u32 *addr, int lid);
168void __init
169uasm_resolve_relocs(struct uasm_reloc *rel, struct uasm_label *lab);
170void __init
171uasm_move_relocs(struct uasm_reloc *rel, u32 *first, u32 *end, long off);
172void __init
173uasm_move_labels(struct uasm_label *lab, u32 *first, u32 *end, long off);
174void __init
175uasm_copy_handler(struct uasm_reloc *rel, struct uasm_label *lab, u32 *first,
176 u32 *end, u32 *target);
177int __init uasm_insn_has_bdelay(struct uasm_reloc *rel, u32 *addr);
178
179/* Convenience functions for labeled branches. */
180void __init
181uasm_il_bltz(u32 **p, struct uasm_reloc **r, unsigned int reg, int lid);
182void __init uasm_il_b(u32 **p, struct uasm_reloc **r, int lid);
183void __init
184uasm_il_beqz(u32 **p, struct uasm_reloc **r, unsigned int reg, int lid);
185void __init
186uasm_il_beqzl(u32 **p, struct uasm_reloc **r, unsigned int reg, int lid);
187void __init
188uasm_il_bnez(u32 **p, struct uasm_reloc **r, unsigned int reg, int lid);
189void __init
190uasm_il_bgezl(u32 **p, struct uasm_reloc **r, unsigned int reg, int lid);
191void __init
192uasm_il_bgez(u32 **p, struct uasm_reloc **r, unsigned int reg, int lid);
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-21 06:19:57 -0500