2 * Tiny Code Generator for QEMU
4 * Copyright (c) 2008 Fabrice Bellard
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
28 #include "qemu-common.h"
30 #include "exec/tb-context.h"
31 #include "qemu/bitops.h"
32 #include "qemu/queue.h"
34 #include "tcg-target.h"
35 #include "qemu/int128.h"
37 /* XXX: make safe guess about sizes */
38 #define MAX_OP_PER_INSTR 266
40 #if HOST_LONG_BITS == 32
41 #define MAX_OPC_PARAM_PER_ARG 2
43 #define MAX_OPC_PARAM_PER_ARG 1
45 #define MAX_OPC_PARAM_IARGS 6
46 #define MAX_OPC_PARAM_OARGS 1
47 #define MAX_OPC_PARAM_ARGS (MAX_OPC_PARAM_IARGS + MAX_OPC_PARAM_OARGS)
49 /* A Call op needs up to 4 + 2N parameters on 32-bit archs,
50 * and up to 4 + N parameters on 64-bit archs
51 * (N = number of input arguments + output arguments). */
52 #define MAX_OPC_PARAM (4 + (MAX_OPC_PARAM_PER_ARG * MAX_OPC_PARAM_ARGS))
54 #define CPU_TEMP_BUF_NLONGS 128
56 /* Default target word size to pointer size. */
57 #ifndef TCG_TARGET_REG_BITS
58 # if UINTPTR_MAX == UINT32_MAX
59 # define TCG_TARGET_REG_BITS 32
60 # elif UINTPTR_MAX == UINT64_MAX
61 # define TCG_TARGET_REG_BITS 64
63 # error Unknown pointer size for tcg target
67 #if TCG_TARGET_REG_BITS == 32
68 typedef int32_t tcg_target_long;
69 typedef uint32_t tcg_target_ulong;
70 #define TCG_PRIlx PRIx32
71 #define TCG_PRIld PRId32
72 #elif TCG_TARGET_REG_BITS == 64
73 typedef int64_t tcg_target_long;
74 typedef uint64_t tcg_target_ulong;
75 #define TCG_PRIlx PRIx64
76 #define TCG_PRIld PRId64
81 /* Oversized TCG guests make things like MTTCG hard
82 * as we can't use atomics for cputlb updates.
84 #if TARGET_LONG_BITS > TCG_TARGET_REG_BITS
85 #define TCG_OVERSIZED_GUEST 1
87 #define TCG_OVERSIZED_GUEST 0
90 #if TCG_TARGET_NB_REGS <= 32
91 typedef uint32_t TCGRegSet;
92 #elif TCG_TARGET_NB_REGS <= 64
93 typedef uint64_t TCGRegSet;
98 #if TCG_TARGET_REG_BITS == 32
99 /* Turn some undef macros into false macros. */
100 #define TCG_TARGET_HAS_extrl_i64_i32 0
101 #define TCG_TARGET_HAS_extrh_i64_i32 0
102 #define TCG_TARGET_HAS_div_i64 0
103 #define TCG_TARGET_HAS_rem_i64 0
104 #define TCG_TARGET_HAS_div2_i64 0
105 #define TCG_TARGET_HAS_rot_i64 0
106 #define TCG_TARGET_HAS_ext8s_i64 0
107 #define TCG_TARGET_HAS_ext16s_i64 0
108 #define TCG_TARGET_HAS_ext32s_i64 0
109 #define TCG_TARGET_HAS_ext8u_i64 0
110 #define TCG_TARGET_HAS_ext16u_i64 0
111 #define TCG_TARGET_HAS_ext32u_i64 0
112 #define TCG_TARGET_HAS_bswap16_i64 0
113 #define TCG_TARGET_HAS_bswap32_i64 0
114 #define TCG_TARGET_HAS_bswap64_i64 0
115 #define TCG_TARGET_HAS_neg_i64 0
116 #define TCG_TARGET_HAS_not_i64 0
117 #define TCG_TARGET_HAS_andc_i64 0
118 #define TCG_TARGET_HAS_orc_i64 0
119 #define TCG_TARGET_HAS_eqv_i64 0
120 #define TCG_TARGET_HAS_nand_i64 0
121 #define TCG_TARGET_HAS_nor_i64 0
122 #define TCG_TARGET_HAS_clz_i64 0
123 #define TCG_TARGET_HAS_ctz_i64 0
124 #define TCG_TARGET_HAS_ctpop_i64 0
125 #define TCG_TARGET_HAS_deposit_i64 0
126 #define TCG_TARGET_HAS_extract_i64 0
127 #define TCG_TARGET_HAS_sextract_i64 0
128 #define TCG_TARGET_HAS_movcond_i64 0
129 #define TCG_TARGET_HAS_add2_i64 0
130 #define TCG_TARGET_HAS_sub2_i64 0
131 #define TCG_TARGET_HAS_mulu2_i64 0
132 #define TCG_TARGET_HAS_muls2_i64 0
133 #define TCG_TARGET_HAS_muluh_i64 0
134 #define TCG_TARGET_HAS_mulsh_i64 0
135 /* Turn some undef macros into true macros. */
136 #define TCG_TARGET_HAS_add2_i32 1
137 #define TCG_TARGET_HAS_sub2_i32 1
140 #ifndef TCG_TARGET_deposit_i32_valid
141 #define TCG_TARGET_deposit_i32_valid(ofs, len) 1
143 #ifndef TCG_TARGET_deposit_i64_valid
144 #define TCG_TARGET_deposit_i64_valid(ofs, len) 1
146 #ifndef TCG_TARGET_extract_i32_valid
147 #define TCG_TARGET_extract_i32_valid(ofs, len) 1
149 #ifndef TCG_TARGET_extract_i64_valid
150 #define TCG_TARGET_extract_i64_valid(ofs, len) 1
153 /* Only one of DIV or DIV2 should be defined. */
154 #if defined(TCG_TARGET_HAS_div_i32)
155 #define TCG_TARGET_HAS_div2_i32 0
156 #elif defined(TCG_TARGET_HAS_div2_i32)
157 #define TCG_TARGET_HAS_div_i32 0
158 #define TCG_TARGET_HAS_rem_i32 0
160 #if defined(TCG_TARGET_HAS_div_i64)
161 #define TCG_TARGET_HAS_div2_i64 0
162 #elif defined(TCG_TARGET_HAS_div2_i64)
163 #define TCG_TARGET_HAS_div_i64 0
164 #define TCG_TARGET_HAS_rem_i64 0
167 /* For 32-bit targets, some sort of unsigned widening multiply is required. */
168 #if TCG_TARGET_REG_BITS == 32 \
169 && !(defined(TCG_TARGET_HAS_mulu2_i32) \
170 || defined(TCG_TARGET_HAS_muluh_i32))
171 # error "Missing unsigned widening multiply"
174 #if !defined(TCG_TARGET_HAS_v64) \
175 && !defined(TCG_TARGET_HAS_v128) \
176 && !defined(TCG_TARGET_HAS_v256)
177 #define TCG_TARGET_MAYBE_vec 0
178 #define TCG_TARGET_HAS_neg_vec 0
179 #define TCG_TARGET_HAS_not_vec 0
180 #define TCG_TARGET_HAS_andc_vec 0
181 #define TCG_TARGET_HAS_orc_vec 0
182 #define TCG_TARGET_HAS_shi_vec 0
183 #define TCG_TARGET_HAS_shs_vec 0
184 #define TCG_TARGET_HAS_shv_vec 0
185 #define TCG_TARGET_HAS_mul_vec 0
187 #define TCG_TARGET_MAYBE_vec 1
189 #ifndef TCG_TARGET_HAS_v64
190 #define TCG_TARGET_HAS_v64 0
192 #ifndef TCG_TARGET_HAS_v128
193 #define TCG_TARGET_HAS_v128 0
195 #ifndef TCG_TARGET_HAS_v256
196 #define TCG_TARGET_HAS_v256 0
199 #ifndef TARGET_INSN_START_EXTRA_WORDS
200 # define TARGET_INSN_START_WORDS 1
202 # define TARGET_INSN_START_WORDS (1 + TARGET_INSN_START_EXTRA_WORDS)
205 typedef enum TCGOpcode {
206 #define DEF(name, oargs, iargs, cargs, flags) INDEX_op_ ## name,
212 #define tcg_regset_set_reg(d, r) ((d) |= (TCGRegSet)1 << (r))
213 #define tcg_regset_reset_reg(d, r) ((d) &= ~((TCGRegSet)1 << (r)))
214 #define tcg_regset_test_reg(d, r) (((d) >> (r)) & 1)
216 #ifndef TCG_TARGET_INSN_UNIT_SIZE
217 # error "Missing TCG_TARGET_INSN_UNIT_SIZE"
218 #elif TCG_TARGET_INSN_UNIT_SIZE == 1
219 typedef uint8_t tcg_insn_unit;
220 #elif TCG_TARGET_INSN_UNIT_SIZE == 2
221 typedef uint16_t tcg_insn_unit;
222 #elif TCG_TARGET_INSN_UNIT_SIZE == 4
223 typedef uint32_t tcg_insn_unit;
224 #elif TCG_TARGET_INSN_UNIT_SIZE == 8
225 typedef uint64_t tcg_insn_unit;
227 /* The port better have done this. */
231 #if defined CONFIG_DEBUG_TCG || defined QEMU_STATIC_ANALYSIS
232 # define tcg_debug_assert(X) do { assert(X); } while (0)
234 # define tcg_debug_assert(X) \
235 do { if (!(X)) { __builtin_unreachable(); } } while (0)
238 typedef struct TCGRelocation {
239 struct TCGRelocation *next;
245 typedef struct TCGLabel {
246 unsigned has_value : 1;
251 tcg_insn_unit *value_ptr;
252 TCGRelocation *first_reloc;
256 typedef struct TCGPool {
257 struct TCGPool *next;
259 uint8_t data[0] __attribute__ ((aligned));
262 #define TCG_POOL_CHUNK_SIZE 32768
264 #define TCG_MAX_TEMPS 512
265 #define TCG_MAX_INSNS 512
267 /* when the size of the arguments of a called function is smaller than
268 this value, they are statically allocated in the TB stack frame */
269 #define TCG_STATIC_CALL_ARGS_SIZE 128
271 typedef enum TCGType {
279 TCG_TYPE_COUNT, /* number of different types */
281 /* An alias for the size of the host register. */
282 #if TCG_TARGET_REG_BITS == 32
283 TCG_TYPE_REG = TCG_TYPE_I32,
285 TCG_TYPE_REG = TCG_TYPE_I64,
288 /* An alias for the size of the native pointer. */
289 #if UINTPTR_MAX == UINT32_MAX
290 TCG_TYPE_PTR = TCG_TYPE_I32,
292 TCG_TYPE_PTR = TCG_TYPE_I64,
295 /* An alias for the size of the target "long", aka register. */
296 #if TARGET_LONG_BITS == 64
297 TCG_TYPE_TL = TCG_TYPE_I64,
299 TCG_TYPE_TL = TCG_TYPE_I32,
303 /* Constants for qemu_ld and qemu_st for the Memory Operation field. */
304 typedef enum TCGMemOp {
309 MO_SIZE = 3, /* Mask for the above. */
311 MO_SIGN = 4, /* Sign-extended, otherwise zero-extended. */
313 MO_BSWAP = 8, /* Host reverse endian. */
314 #ifdef HOST_WORDS_BIGENDIAN
321 #ifdef TARGET_WORDS_BIGENDIAN
327 /* MO_UNALN accesses are never checked for alignment.
328 * MO_ALIGN accesses will result in a call to the CPU's
329 * do_unaligned_access hook if the guest address is not aligned.
330 * The default depends on whether the target CPU defines ALIGNED_ONLY.
332 * Some architectures (e.g. ARMv8) need the address which is aligned
333 * to a size more than the size of the memory access.
334 * Some architectures (e.g. SPARCv9) need an address which is aligned,
335 * but less strictly than the natural alignment.
337 * MO_ALIGN supposes the alignment size is the size of a memory access.
339 * There are three options:
340 * - unaligned access permitted (MO_UNALN).
341 * - an alignment to the size of an access (MO_ALIGN);
342 * - an alignment to a specified size, which may be more or less than
343 * the access size (MO_ALIGN_x where 'x' is a size in bytes);
346 MO_AMASK = 7 << MO_ASHIFT,
354 MO_ALIGN_2 = 1 << MO_ASHIFT,
355 MO_ALIGN_4 = 2 << MO_ASHIFT,
356 MO_ALIGN_8 = 3 << MO_ASHIFT,
357 MO_ALIGN_16 = 4 << MO_ASHIFT,
358 MO_ALIGN_32 = 5 << MO_ASHIFT,
359 MO_ALIGN_64 = 6 << MO_ASHIFT,
361 /* Combinations of the above, for ease of use. */
365 MO_SB = MO_SIGN | MO_8,
366 MO_SW = MO_SIGN | MO_16,
367 MO_SL = MO_SIGN | MO_32,
370 MO_LEUW = MO_LE | MO_UW,
371 MO_LEUL = MO_LE | MO_UL,
372 MO_LESW = MO_LE | MO_SW,
373 MO_LESL = MO_LE | MO_SL,
374 MO_LEQ = MO_LE | MO_Q,
376 MO_BEUW = MO_BE | MO_UW,
377 MO_BEUL = MO_BE | MO_UL,
378 MO_BESW = MO_BE | MO_SW,
379 MO_BESL = MO_BE | MO_SL,
380 MO_BEQ = MO_BE | MO_Q,
382 MO_TEUW = MO_TE | MO_UW,
383 MO_TEUL = MO_TE | MO_UL,
384 MO_TESW = MO_TE | MO_SW,
385 MO_TESL = MO_TE | MO_SL,
386 MO_TEQ = MO_TE | MO_Q,
388 MO_SSIZE = MO_SIZE | MO_SIGN,
393 * @memop: TCGMemOp value
395 * Extract the alignment size from the memop.
397 static inline unsigned get_alignment_bits(TCGMemOp memop)
399 unsigned a = memop & MO_AMASK;
402 /* No alignment required. */
404 } else if (a == MO_ALIGN) {
405 /* A natural alignment requirement. */
408 /* A specific alignment requirement. */
411 #if defined(CONFIG_SOFTMMU)
412 /* The requested alignment cannot overlap the TLB flags. */
413 tcg_debug_assert((TLB_FLAGS_MASK & ((1 << a) - 1)) == 0);
418 typedef tcg_target_ulong TCGArg;
420 /* Define type and accessor macros for TCG variables.
422 TCG variables are the inputs and outputs of TCG ops, as described
423 in tcg/README. Target CPU front-end code uses these types to deal
424 with TCG variables as it emits TCG code via the tcg_gen_* functions.
425 They come in several flavours:
426 * TCGv_i32 : 32 bit integer type
427 * TCGv_i64 : 64 bit integer type
428 * TCGv_ptr : a host pointer type
429 * TCGv_vec : a host vector type; the exact size is not exposed
430 to the CPU front-end code.
431 * TCGv : an integer type the same size as target_ulong
432 (an alias for either TCGv_i32 or TCGv_i64)
433 The compiler's type checking will complain if you mix them
434 up and pass the wrong sized TCGv to a function.
436 Users of tcg_gen_* don't need to know about any of the internal
437 details of these, and should treat them as opaque types.
438 You won't be able to look inside them in a debugger either.
440 Internal implementation details follow:
442 Note that there is no definition of the structs TCGv_i32_d etc anywhere.
443 This is deliberate, because the values we store in variables of type
444 TCGv_i32 are not really pointers-to-structures. They're just small
445 integers, but keeping them in pointer types like this means that the
446 compiler will complain if you accidentally pass a TCGv_i32 to a
447 function which takes a TCGv_i64, and so on. Only the internals of
448 TCG need to care about the actual contents of the types. */
450 typedef struct TCGv_i32_d *TCGv_i32;
451 typedef struct TCGv_i64_d *TCGv_i64;
452 typedef struct TCGv_ptr_d *TCGv_ptr;
453 typedef struct TCGv_vec_d *TCGv_vec;
454 typedef TCGv_ptr TCGv_env;
455 #if TARGET_LONG_BITS == 32
456 #define TCGv TCGv_i32
457 #elif TARGET_LONG_BITS == 64
458 #define TCGv TCGv_i64
460 #error Unhandled TARGET_LONG_BITS value
464 /* Helper does not read globals (either directly or through an exception). It
465 implies TCG_CALL_NO_WRITE_GLOBALS. */
466 #define TCG_CALL_NO_READ_GLOBALS 0x0001
467 /* Helper does not write globals */
468 #define TCG_CALL_NO_WRITE_GLOBALS 0x0002
469 /* Helper can be safely suppressed if the return value is not used. */
470 #define TCG_CALL_NO_SIDE_EFFECTS 0x0004
471 /* Helper is QEMU_NORETURN. */
472 #define TCG_CALL_NO_RETURN 0x0008
474 /* convenience version of most used call flags */
475 #define TCG_CALL_NO_RWG TCG_CALL_NO_READ_GLOBALS
476 #define TCG_CALL_NO_WG TCG_CALL_NO_WRITE_GLOBALS
477 #define TCG_CALL_NO_SE TCG_CALL_NO_SIDE_EFFECTS
478 #define TCG_CALL_NO_RWG_SE (TCG_CALL_NO_RWG | TCG_CALL_NO_SE)
479 #define TCG_CALL_NO_WG_SE (TCG_CALL_NO_WG | TCG_CALL_NO_SE)
481 /* Used to align parameters. See the comment before tcgv_i32_temp. */
482 #define TCG_CALL_DUMMY_ARG ((TCGArg)0)
484 /* Conditions. Note that these are laid out for easy manipulation by
486 bit 0 is used for inverting;
489 bit 3 is used with bit 0 for swapping signed/unsigned. */
492 TCG_COND_NEVER = 0 | 0 | 0 | 0,
493 TCG_COND_ALWAYS = 0 | 0 | 0 | 1,
494 TCG_COND_EQ = 8 | 0 | 0 | 0,
495 TCG_COND_NE = 8 | 0 | 0 | 1,
497 TCG_COND_LT = 0 | 0 | 2 | 0,
498 TCG_COND_GE = 0 | 0 | 2 | 1,
499 TCG_COND_LE = 8 | 0 | 2 | 0,
500 TCG_COND_GT = 8 | 0 | 2 | 1,
502 TCG_COND_LTU = 0 | 4 | 0 | 0,
503 TCG_COND_GEU = 0 | 4 | 0 | 1,
504 TCG_COND_LEU = 8 | 4 | 0 | 0,
505 TCG_COND_GTU = 8 | 4 | 0 | 1,
508 /* Invert the sense of the comparison. */
509 static inline TCGCond tcg_invert_cond(TCGCond c)
511 return (TCGCond)(c ^ 1);
514 /* Swap the operands in a comparison. */
515 static inline TCGCond tcg_swap_cond(TCGCond c)
517 return c & 6 ? (TCGCond)(c ^ 9) : c;
520 /* Create an "unsigned" version of a "signed" comparison. */
521 static inline TCGCond tcg_unsigned_cond(TCGCond c)
523 return c & 2 ? (TCGCond)(c ^ 6) : c;
526 /* Create a "signed" version of an "unsigned" comparison. */
527 static inline TCGCond tcg_signed_cond(TCGCond c)
529 return c & 4 ? (TCGCond)(c ^ 6) : c;
532 /* Must a comparison be considered unsigned? */
533 static inline bool is_unsigned_cond(TCGCond c)
538 /* Create a "high" version of a double-word comparison.
539 This removes equality from a LTE or GTE comparison. */
540 static inline TCGCond tcg_high_cond(TCGCond c)
547 return (TCGCond)(c ^ 8);
553 typedef enum TCGTempVal {
560 typedef struct TCGTemp {
562 TCGTempVal val_type:8;
565 unsigned int fixed_reg:1;
566 unsigned int indirect_reg:1;
567 unsigned int indirect_base:1;
568 unsigned int mem_coherent:1;
569 unsigned int mem_allocated:1;
570 /* If true, the temp is saved across both basic blocks and
571 translation blocks. */
572 unsigned int temp_global:1;
573 /* If true, the temp is saved across basic blocks but dead
574 at the end of translation blocks. If false, the temp is
575 dead at the end of basic blocks. */
576 unsigned int temp_local:1;
577 unsigned int temp_allocated:1;
580 struct TCGTemp *mem_base;
584 /* Pass-specific information that can be stored for a temporary.
585 One word worth of integer data, and one pointer to data
586 allocated separately. */
591 typedef struct TCGContext TCGContext;
593 typedef struct TCGTempSet {
594 unsigned long l[BITS_TO_LONGS(TCG_MAX_TEMPS)];
597 /* While we limit helpers to 6 arguments, for 32-bit hosts, with padding,
598 this imples a max of 6*2 (64-bit in) + 2 (64-bit out) = 14 operands.
599 There are never more than 2 outputs, which means that we can store all
600 dead + sync data within 16 bits. */
603 typedef uint16_t TCGLifeData;
605 /* The layout here is designed to avoid a bitfield crossing of
606 a 32-bit boundary, which would cause GCC to add extra padding. */
607 typedef struct TCGOp {
608 TCGOpcode opc : 8; /* 8 */
610 /* Parameters for this opcode. See below. */
611 unsigned param1 : 4; /* 12 */
612 unsigned param2 : 4; /* 16 */
614 /* Lifetime data of the operands. */
615 unsigned life : 16; /* 32 */
617 /* Next and previous opcodes. */
618 QTAILQ_ENTRY(TCGOp) link;
620 /* Arguments for the opcode. */
621 TCGArg args[MAX_OPC_PARAM];
624 #define TCGOP_CALLI(X) (X)->param1
625 #define TCGOP_CALLO(X) (X)->param2
627 #define TCGOP_VECL(X) (X)->param1
628 #define TCGOP_VECE(X) (X)->param2
630 /* Make sure operands fit in the bitfields above. */
631 QEMU_BUILD_BUG_ON(NB_OPS > (1 << 8));
633 typedef struct TCGProfile {
634 int64_t cpu_exec_time;
637 int64_t op_count; /* total insn count */
638 int op_count_max; /* max insn per TB */
641 int64_t del_op_count;
643 int64_t code_out_len;
644 int64_t search_out_len;
649 int64_t restore_count;
650 int64_t restore_time;
651 int64_t table_op_count[NB_OPS];
655 uint8_t *pool_cur, *pool_end;
656 TCGPool *pool_first, *pool_current, *pool_first_large;
663 /* goto_tb support */
664 tcg_insn_unit *code_buf;
665 uint16_t *tb_jmp_reset_offset; /* tb->jmp_reset_offset */
666 uintptr_t *tb_jmp_insn_offset; /* tb->jmp_target_arg if direct_jump */
667 uintptr_t *tb_jmp_target_addr; /* tb->jmp_target_arg if !direct_jump */
669 TCGRegSet reserved_regs;
670 uint32_t tb_cflags; /* cflags of the current TB */
671 intptr_t current_frame_offset;
672 intptr_t frame_start;
676 tcg_insn_unit *code_ptr;
678 #ifdef CONFIG_PROFILER
682 #ifdef CONFIG_DEBUG_TCG
684 int goto_tb_issue_mask;
687 /* Code generation. Note that we specifically do not use tcg_insn_unit
688 here, because there's too much arithmetic throughout that relies
689 on addition and subtraction working on bytes. Rely on the GCC
690 extension that allows arithmetic on void*. */
691 void *code_gen_prologue;
692 void *code_gen_epilogue;
693 void *code_gen_buffer;
694 size_t code_gen_buffer_size;
698 /* Threshold to flush the translated code buffer. */
699 void *code_gen_highwater;
701 size_t tb_phys_invalidate_count;
703 /* Track which vCPU triggers events */
704 CPUState *cpu; /* *_trans */
706 /* These structures are private to tcg-target.inc.c. */
707 #ifdef TCG_TARGET_NEED_LDST_LABELS
708 QSIMPLEQ_HEAD(ldst_labels, TCGLabelQemuLdst) ldst_labels;
710 #ifdef TCG_TARGET_NEED_POOL_LABELS
711 struct TCGLabelPoolData *pool_labels;
714 TCGLabel *exitreq_label;
716 TCGTempSet free_temps[TCG_TYPE_COUNT * 2];
717 TCGTemp temps[TCG_MAX_TEMPS]; /* globals first, temps after */
719 QTAILQ_HEAD(TCGOpHead, TCGOp) ops, free_ops;
721 /* Tells which temporary holds a given register.
722 It does not take into account fixed registers */
723 TCGTemp *reg_to_temp[TCG_TARGET_NB_REGS];
725 uint16_t gen_insn_end_off[TCG_MAX_INSNS];
726 target_ulong gen_insn_data[TCG_MAX_INSNS][TARGET_INSN_START_WORDS];
729 extern TCGContext tcg_init_ctx;
730 extern __thread TCGContext *tcg_ctx;
731 extern TCGv_env cpu_env;
733 static inline size_t temp_idx(TCGTemp *ts)
735 ptrdiff_t n = ts - tcg_ctx->temps;
736 tcg_debug_assert(n >= 0 && n < tcg_ctx->nb_temps);
740 static inline TCGArg temp_arg(TCGTemp *ts)
742 return (uintptr_t)ts;
745 static inline TCGTemp *arg_temp(TCGArg a)
747 return (TCGTemp *)(uintptr_t)a;
750 /* Using the offset of a temporary, relative to TCGContext, rather than
751 its index means that we don't use 0. That leaves offset 0 free for
752 a NULL representation without having to leave index 0 unused. */
753 static inline TCGTemp *tcgv_i32_temp(TCGv_i32 v)
755 uintptr_t o = (uintptr_t)v;
756 TCGTemp *t = (void *)tcg_ctx + o;
757 tcg_debug_assert(offsetof(TCGContext, temps[temp_idx(t)]) == o);
761 static inline TCGTemp *tcgv_i64_temp(TCGv_i64 v)
763 return tcgv_i32_temp((TCGv_i32)v);
766 static inline TCGTemp *tcgv_ptr_temp(TCGv_ptr v)
768 return tcgv_i32_temp((TCGv_i32)v);
771 static inline TCGTemp *tcgv_vec_temp(TCGv_vec v)
773 return tcgv_i32_temp((TCGv_i32)v);
776 static inline TCGArg tcgv_i32_arg(TCGv_i32 v)
778 return temp_arg(tcgv_i32_temp(v));
781 static inline TCGArg tcgv_i64_arg(TCGv_i64 v)
783 return temp_arg(tcgv_i64_temp(v));
786 static inline TCGArg tcgv_ptr_arg(TCGv_ptr v)
788 return temp_arg(tcgv_ptr_temp(v));
791 static inline TCGArg tcgv_vec_arg(TCGv_vec v)
793 return temp_arg(tcgv_vec_temp(v));
796 static inline TCGv_i32 temp_tcgv_i32(TCGTemp *t)
798 (void)temp_idx(t); /* trigger embedded assert */
799 return (TCGv_i32)((void *)t - (void *)tcg_ctx);
802 static inline TCGv_i64 temp_tcgv_i64(TCGTemp *t)
804 return (TCGv_i64)temp_tcgv_i32(t);
807 static inline TCGv_ptr temp_tcgv_ptr(TCGTemp *t)
809 return (TCGv_ptr)temp_tcgv_i32(t);
812 static inline TCGv_vec temp_tcgv_vec(TCGTemp *t)
814 return (TCGv_vec)temp_tcgv_i32(t);
817 #if TCG_TARGET_REG_BITS == 32
818 static inline TCGv_i32 TCGV_LOW(TCGv_i64 t)
820 return temp_tcgv_i32(tcgv_i64_temp(t));
823 static inline TCGv_i32 TCGV_HIGH(TCGv_i64 t)
825 return temp_tcgv_i32(tcgv_i64_temp(t) + 1);
829 static inline void tcg_set_insn_param(TCGOp *op, int arg, TCGArg v)
834 static inline void tcg_set_insn_start_param(TCGOp *op, int arg, target_ulong v)
836 #if TARGET_LONG_BITS <= TCG_TARGET_REG_BITS
837 tcg_set_insn_param(op, arg, v);
839 tcg_set_insn_param(op, arg * 2, v);
840 tcg_set_insn_param(op, arg * 2 + 1, v >> 32);
844 /* The last op that was emitted. */
845 static inline TCGOp *tcg_last_op(void)
847 return QTAILQ_LAST(&tcg_ctx->ops, TCGOpHead);
850 /* Test for whether to terminate the TB for using too many opcodes. */
851 static inline bool tcg_op_buf_full(void)
853 /* This is not a hard limit, it merely stops translation when
854 * we have produced "enough" opcodes. We want to limit TB size
855 * such that a RISC host can reasonably use a 16-bit signed
856 * branch within the TB. We also need to be mindful of the
857 * 16-bit unsigned offsets, TranslationBlock.jmp_reset_offset[]
858 * and TCGContext.gen_insn_end_off[].
860 return tcg_ctx->nb_ops >= 4000;
863 /* pool based memory allocation */
865 /* user-mode: mmap_lock must be held for tcg_malloc_internal. */
866 void *tcg_malloc_internal(TCGContext *s, int size);
867 void tcg_pool_reset(TCGContext *s);
868 TranslationBlock *tcg_tb_alloc(TCGContext *s);
870 void tcg_region_init(void);
871 void tcg_region_reset_all(void);
873 size_t tcg_code_size(void);
874 size_t tcg_code_capacity(void);
876 void tcg_tb_insert(TranslationBlock *tb);
877 void tcg_tb_remove(TranslationBlock *tb);
878 size_t tcg_tb_phys_invalidate_count(void);
879 TranslationBlock *tcg_tb_lookup(uintptr_t tc_ptr);
880 void tcg_tb_foreach(GTraverseFunc func, gpointer user_data);
881 size_t tcg_nb_tbs(void);
883 /* user-mode: Called with mmap_lock held. */
884 static inline void *tcg_malloc(int size)
886 TCGContext *s = tcg_ctx;
887 uint8_t *ptr, *ptr_end;
889 /* ??? This is a weak placeholder for minimum malloc alignment. */
890 size = QEMU_ALIGN_UP(size, 8);
893 ptr_end = ptr + size;
894 if (unlikely(ptr_end > s->pool_end)) {
895 return tcg_malloc_internal(tcg_ctx, size);
897 s->pool_cur = ptr_end;
902 void tcg_context_init(TCGContext *s);
903 void tcg_register_thread(void);
904 void tcg_prologue_init(TCGContext *s);
905 void tcg_func_start(TCGContext *s);
907 int tcg_gen_code(TCGContext *s, TranslationBlock *tb);
909 void tcg_set_frame(TCGContext *s, TCGReg reg, intptr_t start, intptr_t size);
911 TCGTemp *tcg_global_mem_new_internal(TCGType, TCGv_ptr,
912 intptr_t, const char *);
913 TCGTemp *tcg_temp_new_internal(TCGType, bool);
914 void tcg_temp_free_internal(TCGTemp *);
915 TCGv_vec tcg_temp_new_vec(TCGType type);
916 TCGv_vec tcg_temp_new_vec_matching(TCGv_vec match);
918 static inline void tcg_temp_free_i32(TCGv_i32 arg)
920 tcg_temp_free_internal(tcgv_i32_temp(arg));
923 static inline void tcg_temp_free_i64(TCGv_i64 arg)
925 tcg_temp_free_internal(tcgv_i64_temp(arg));
928 static inline void tcg_temp_free_ptr(TCGv_ptr arg)
930 tcg_temp_free_internal(tcgv_ptr_temp(arg));
933 static inline void tcg_temp_free_vec(TCGv_vec arg)
935 tcg_temp_free_internal(tcgv_vec_temp(arg));
938 static inline TCGv_i32 tcg_global_mem_new_i32(TCGv_ptr reg, intptr_t offset,
941 TCGTemp *t = tcg_global_mem_new_internal(TCG_TYPE_I32, reg, offset, name);
942 return temp_tcgv_i32(t);
945 static inline TCGv_i32 tcg_temp_new_i32(void)
947 TCGTemp *t = tcg_temp_new_internal(TCG_TYPE_I32, false);
948 return temp_tcgv_i32(t);
951 static inline TCGv_i32 tcg_temp_local_new_i32(void)
953 TCGTemp *t = tcg_temp_new_internal(TCG_TYPE_I32, true);
954 return temp_tcgv_i32(t);
957 static inline TCGv_i64 tcg_global_mem_new_i64(TCGv_ptr reg, intptr_t offset,
960 TCGTemp *t = tcg_global_mem_new_internal(TCG_TYPE_I64, reg, offset, name);
961 return temp_tcgv_i64(t);
964 static inline TCGv_i64 tcg_temp_new_i64(void)
966 TCGTemp *t = tcg_temp_new_internal(TCG_TYPE_I64, false);
967 return temp_tcgv_i64(t);
970 static inline TCGv_i64 tcg_temp_local_new_i64(void)
972 TCGTemp *t = tcg_temp_new_internal(TCG_TYPE_I64, true);
973 return temp_tcgv_i64(t);
976 static inline TCGv_ptr tcg_global_mem_new_ptr(TCGv_ptr reg, intptr_t offset,
979 TCGTemp *t = tcg_global_mem_new_internal(TCG_TYPE_PTR, reg, offset, name);
980 return temp_tcgv_ptr(t);
983 static inline TCGv_ptr tcg_temp_new_ptr(void)
985 TCGTemp *t = tcg_temp_new_internal(TCG_TYPE_PTR, false);
986 return temp_tcgv_ptr(t);
989 static inline TCGv_ptr tcg_temp_local_new_ptr(void)
991 TCGTemp *t = tcg_temp_new_internal(TCG_TYPE_PTR, true);
992 return temp_tcgv_ptr(t);
995 #if defined(CONFIG_DEBUG_TCG)
996 /* If you call tcg_clear_temp_count() at the start of a section of
997 * code which is not supposed to leak any TCG temporaries, then
998 * calling tcg_check_temp_count() at the end of the section will
999 * return 1 if the section did in fact leak a temporary.
1001 void tcg_clear_temp_count(void);
1002 int tcg_check_temp_count(void);
1004 #define tcg_clear_temp_count() do { } while (0)
1005 #define tcg_check_temp_count() 0
1008 int64_t tcg_cpu_exec_time(void);
1009 void tcg_dump_info(FILE *f, fprintf_function cpu_fprintf);
1010 void tcg_dump_op_count(FILE *f, fprintf_function cpu_fprintf);
1012 #define TCG_CT_ALIAS 0x80
1013 #define TCG_CT_IALIAS 0x40
1014 #define TCG_CT_NEWREG 0x20 /* output requires a new register */
1015 #define TCG_CT_REG 0x01
1016 #define TCG_CT_CONST 0x02 /* any constant of register size */
1018 typedef struct TCGArgConstraint {
1020 uint8_t alias_index;
1026 #define TCG_MAX_OP_ARGS 16
1028 /* Bits for TCGOpDef->flags, 8 bits available. */
1030 /* Instruction defines the end of a basic block. */
1031 TCG_OPF_BB_END = 0x01,
1032 /* Instruction clobbers call registers and potentially update globals. */
1033 TCG_OPF_CALL_CLOBBER = 0x02,
1034 /* Instruction has side effects: it cannot be removed if its outputs
1035 are not used, and might trigger exceptions. */
1036 TCG_OPF_SIDE_EFFECTS = 0x04,
1037 /* Instruction operands are 64-bits (otherwise 32-bits). */
1038 TCG_OPF_64BIT = 0x08,
1039 /* Instruction is optional and not implemented by the host, or insn
1040 is generic and should not be implemened by the host. */
1041 TCG_OPF_NOT_PRESENT = 0x10,
1042 /* Instruction operands are vectors. */
1043 TCG_OPF_VECTOR = 0x20,
1046 typedef struct TCGOpDef {
1048 uint8_t nb_oargs, nb_iargs, nb_cargs, nb_args;
1050 TCGArgConstraint *args_ct;
1052 #if defined(CONFIG_DEBUG_TCG)
1057 extern TCGOpDef tcg_op_defs[];
1058 extern const size_t tcg_op_defs_max;
1060 typedef struct TCGTargetOpDef {
1062 const char *args_ct_str[TCG_MAX_OP_ARGS];
1065 #define tcg_abort() \
1067 fprintf(stderr, "%s:%d: tcg fatal error\n", __FILE__, __LINE__);\
1071 bool tcg_op_supported(TCGOpcode op);
1073 void tcg_gen_callN(void *func, TCGTemp *ret, int nargs, TCGTemp **args);
1075 TCGOp *tcg_emit_op(TCGOpcode opc);
1076 void tcg_op_remove(TCGContext *s, TCGOp *op);
1077 TCGOp *tcg_op_insert_before(TCGContext *s, TCGOp *op, TCGOpcode opc);
1078 TCGOp *tcg_op_insert_after(TCGContext *s, TCGOp *op, TCGOpcode opc);
1080 void tcg_optimize(TCGContext *s);
1082 /* only used for debugging purposes */
1083 void tcg_dump_ops(TCGContext *s);
1085 TCGv_i32 tcg_const_i32(int32_t val);
1086 TCGv_i64 tcg_const_i64(int64_t val);
1087 TCGv_i32 tcg_const_local_i32(int32_t val);
1088 TCGv_i64 tcg_const_local_i64(int64_t val);
1089 TCGv_vec tcg_const_zeros_vec(TCGType);
1090 TCGv_vec tcg_const_ones_vec(TCGType);
1091 TCGv_vec tcg_const_zeros_vec_matching(TCGv_vec);
1092 TCGv_vec tcg_const_ones_vec_matching(TCGv_vec);
1094 #if UINTPTR_MAX == UINT32_MAX
1095 # define tcg_const_ptr(x) ((TCGv_ptr)tcg_const_i32((intptr_t)(x)))
1096 # define tcg_const_local_ptr(x) ((TCGv_ptr)tcg_const_local_i32((intptr_t)(x)))
1098 # define tcg_const_ptr(x) ((TCGv_ptr)tcg_const_i64((intptr_t)(x)))
1099 # define tcg_const_local_ptr(x) ((TCGv_ptr)tcg_const_local_i64((intptr_t)(x)))
1102 TCGLabel *gen_new_label(void);
1108 * Encode a label for storage in the TCG opcode stream.
1111 static inline TCGArg label_arg(TCGLabel *l)
1113 return (uintptr_t)l;
1120 * The opposite of label_arg. Retrieve a label from the
1121 * encoding of the TCG opcode stream.
1124 static inline TCGLabel *arg_label(TCGArg i)
1126 return (TCGLabel *)(uintptr_t)i;
1131 * @a, @b: addresses to be differenced
1133 * There are many places within the TCG backends where we need a byte
1134 * difference between two pointers. While this can be accomplished
1135 * with local casting, it's easy to get wrong -- especially if one is
1136 * concerned with the signedness of the result.
1138 * This version relies on GCC's void pointer arithmetic to get the
1142 static inline ptrdiff_t tcg_ptr_byte_diff(void *a, void *b)
1149 * @s: the tcg context
1150 * @target: address of the target
1152 * Produce a pc-relative difference, from the current code_ptr
1153 * to the destination address.
1156 static inline ptrdiff_t tcg_pcrel_diff(TCGContext *s, void *target)
1158 return tcg_ptr_byte_diff(target, s->code_ptr);
1162 * tcg_current_code_size
1163 * @s: the tcg context
1165 * Compute the current code size within the translation block.
1166 * This is used to fill in qemu's data structures for goto_tb.
1169 static inline size_t tcg_current_code_size(TCGContext *s)
1171 return tcg_ptr_byte_diff(s->code_ptr, s->code_buf);
1174 /* Combine the TCGMemOp and mmu_idx parameters into a single value. */
1175 typedef uint32_t TCGMemOpIdx;
1179 * @op: memory operation
1182 * Encode these values into a single parameter.
1184 static inline TCGMemOpIdx make_memop_idx(TCGMemOp op, unsigned idx)
1186 tcg_debug_assert(idx <= 15);
1187 return (op << 4) | idx;
1192 * @oi: combined op/idx parameter
1194 * Extract the memory operation from the combined value.
1196 static inline TCGMemOp get_memop(TCGMemOpIdx oi)
1203 * @oi: combined op/idx parameter
1205 * Extract the mmu index from the combined value.
1207 static inline unsigned get_mmuidx(TCGMemOpIdx oi)
1214 * @env: pointer to CPUArchState for the CPU
1215 * @tb_ptr: address of generated code for the TB to execute
1217 * Start executing code from a given translation block.
1218 * Where translation blocks have been linked, execution
1219 * may proceed from the given TB into successive ones.
1220 * Control eventually returns only when some action is needed
1221 * from the top-level loop: either control must pass to a TB
1222 * which has not yet been directly linked, or an asynchronous
1223 * event such as an interrupt needs handling.
1225 * Return: The return value is the value passed to the corresponding
1226 * tcg_gen_exit_tb() at translation time of the last TB attempted to execute.
1227 * The value is either zero or a 4-byte aligned pointer to that TB combined
1228 * with additional information in its two least significant bits. The
1229 * additional information is encoded as follows:
1230 * 0, 1: the link between this TB and the next is via the specified
1231 * TB index (0 or 1). That is, we left the TB via (the equivalent
1232 * of) "goto_tb <index>". The main loop uses this to determine
1233 * how to link the TB just executed to the next.
1234 * 2: we are using instruction counting code generation, and we
1235 * did not start executing this TB because the instruction counter
1236 * would hit zero midway through it. In this case the pointer
1237 * returned is the TB we were about to execute, and the caller must
1238 * arrange to execute the remaining count of instructions.
1239 * 3: we stopped because the CPU's exit_request flag was set
1240 * (usually meaning that there is an interrupt that needs to be
1241 * handled). The pointer returned is the TB we were about to execute
1242 * when we noticed the pending exit request.
1244 * If the bottom two bits indicate an exit-via-index then the CPU
1245 * state is correctly synchronised and ready for execution of the next
1246 * TB (and in particular the guest PC is the address to execute next).
1247 * Otherwise, we gave up on execution of this TB before it started, and
1248 * the caller must fix up the CPU state by calling the CPU's
1249 * synchronize_from_tb() method with the TB pointer we return (falling
1250 * back to calling the CPU's set_pc method with tb->pb if no
1251 * synchronize_from_tb() method exists).
1253 * Note that TCG targets may use a different definition of tcg_qemu_tb_exec
1254 * to this default (which just calls the prologue.code emitted by
1255 * tcg_target_qemu_prologue()).
1257 #define TB_EXIT_MASK 3
1258 #define TB_EXIT_IDX0 0
1259 #define TB_EXIT_IDX1 1
1260 #define TB_EXIT_IDXMAX 1
1261 #define TB_EXIT_REQUESTED 3
1263 #ifdef HAVE_TCG_QEMU_TB_EXEC
1264 uintptr_t tcg_qemu_tb_exec(CPUArchState *env, uint8_t *tb_ptr);
1266 # define tcg_qemu_tb_exec(env, tb_ptr) \
1267 ((uintptr_t (*)(void *, void *))tcg_ctx->code_gen_prologue)(env, tb_ptr)
1270 void tcg_register_jit(void *buf, size_t buf_size);
1272 #if TCG_TARGET_MAYBE_vec
1273 /* Return zero if the tuple (opc, type, vece) is unsupportable;
1274 return > 0 if it is directly supportable;
1275 return < 0 if we must call tcg_expand_vec_op. */
1276 int tcg_can_emit_vec_op(TCGOpcode, TCGType, unsigned);
1278 static inline int tcg_can_emit_vec_op(TCGOpcode o, TCGType t, unsigned ve)
1284 /* Expand the tuple (opc, type, vece) on the given arguments. */
1285 void tcg_expand_vec_op(TCGOpcode, TCGType, unsigned, TCGArg, ...);
1287 /* Replicate a constant C accoring to the log2 of the element size. */
1288 uint64_t dup_const(unsigned vece, uint64_t c);
1290 #define dup_const(VECE, C) \
1291 (__builtin_constant_p(VECE) \
1292 ? ( (VECE) == MO_8 ? 0x0101010101010101ull * (uint8_t)(C) \
1293 : (VECE) == MO_16 ? 0x0001000100010001ull * (uint16_t)(C) \
1294 : (VECE) == MO_32 ? 0x0000000100000001ull * (uint32_t)(C) \
1295 : dup_const(VECE, C)) \
1296 : dup_const(VECE, C))
1300 * Memory helpers that will be used by TCG generated code.
1302 #ifdef CONFIG_SOFTMMU
1303 /* Value zero-extended to tcg register size. */
1304 tcg_target_ulong helper_ret_ldub_mmu(CPUArchState *env, target_ulong addr,
1305 TCGMemOpIdx oi, uintptr_t retaddr);
1306 tcg_target_ulong helper_le_lduw_mmu(CPUArchState *env, target_ulong addr,
1307 TCGMemOpIdx oi, uintptr_t retaddr);
1308 tcg_target_ulong helper_le_ldul_mmu(CPUArchState *env, target_ulong addr,
1309 TCGMemOpIdx oi, uintptr_t retaddr);
1310 uint64_t helper_le_ldq_mmu(CPUArchState *env, target_ulong addr,
1311 TCGMemOpIdx oi, uintptr_t retaddr);
1312 tcg_target_ulong helper_be_lduw_mmu(CPUArchState *env, target_ulong addr,
1313 TCGMemOpIdx oi, uintptr_t retaddr);
1314 tcg_target_ulong helper_be_ldul_mmu(CPUArchState *env, target_ulong addr,
1315 TCGMemOpIdx oi, uintptr_t retaddr);
1316 uint64_t helper_be_ldq_mmu(CPUArchState *env, target_ulong addr,
1317 TCGMemOpIdx oi, uintptr_t retaddr);
1319 /* Value sign-extended to tcg register size. */
1320 tcg_target_ulong helper_ret_ldsb_mmu(CPUArchState *env, target_ulong addr,
1321 TCGMemOpIdx oi, uintptr_t retaddr);
1322 tcg_target_ulong helper_le_ldsw_mmu(CPUArchState *env, target_ulong addr,
1323 TCGMemOpIdx oi, uintptr_t retaddr);
1324 tcg_target_ulong helper_le_ldsl_mmu(CPUArchState *env, target_ulong addr,
1325 TCGMemOpIdx oi, uintptr_t retaddr);
1326 tcg_target_ulong helper_be_ldsw_mmu(CPUArchState *env, target_ulong addr,
1327 TCGMemOpIdx oi, uintptr_t retaddr);
1328 tcg_target_ulong helper_be_ldsl_mmu(CPUArchState *env, target_ulong addr,
1329 TCGMemOpIdx oi, uintptr_t retaddr);
1331 void helper_ret_stb_mmu(CPUArchState *env, target_ulong addr, uint8_t val,
1332 TCGMemOpIdx oi, uintptr_t retaddr);
1333 void helper_le_stw_mmu(CPUArchState *env, target_ulong addr, uint16_t val,
1334 TCGMemOpIdx oi, uintptr_t retaddr);
1335 void helper_le_stl_mmu(CPUArchState *env, target_ulong addr, uint32_t val,
1336 TCGMemOpIdx oi, uintptr_t retaddr);
1337 void helper_le_stq_mmu(CPUArchState *env, target_ulong addr, uint64_t val,
1338 TCGMemOpIdx oi, uintptr_t retaddr);
1339 void helper_be_stw_mmu(CPUArchState *env, target_ulong addr, uint16_t val,
1340 TCGMemOpIdx oi, uintptr_t retaddr);
1341 void helper_be_stl_mmu(CPUArchState *env, target_ulong addr, uint32_t val,
1342 TCGMemOpIdx oi, uintptr_t retaddr);
1343 void helper_be_stq_mmu(CPUArchState *env, target_ulong addr, uint64_t val,
1344 TCGMemOpIdx oi, uintptr_t retaddr);
1346 uint8_t helper_ret_ldb_cmmu(CPUArchState *env, target_ulong addr,
1347 TCGMemOpIdx oi, uintptr_t retaddr);
1348 uint16_t helper_le_ldw_cmmu(CPUArchState *env, target_ulong addr,
1349 TCGMemOpIdx oi, uintptr_t retaddr);
1350 uint32_t helper_le_ldl_cmmu(CPUArchState *env, target_ulong addr,
1351 TCGMemOpIdx oi, uintptr_t retaddr);
1352 uint64_t helper_le_ldq_cmmu(CPUArchState *env, target_ulong addr,
1353 TCGMemOpIdx oi, uintptr_t retaddr);
1354 uint16_t helper_be_ldw_cmmu(CPUArchState *env, target_ulong addr,
1355 TCGMemOpIdx oi, uintptr_t retaddr);
1356 uint32_t helper_be_ldl_cmmu(CPUArchState *env, target_ulong addr,
1357 TCGMemOpIdx oi, uintptr_t retaddr);
1358 uint64_t helper_be_ldq_cmmu(CPUArchState *env, target_ulong addr,
1359 TCGMemOpIdx oi, uintptr_t retaddr);
1361 /* Temporary aliases until backends are converted. */
1362 #ifdef TARGET_WORDS_BIGENDIAN
1363 # define helper_ret_ldsw_mmu helper_be_ldsw_mmu
1364 # define helper_ret_lduw_mmu helper_be_lduw_mmu
1365 # define helper_ret_ldsl_mmu helper_be_ldsl_mmu
1366 # define helper_ret_ldul_mmu helper_be_ldul_mmu
1367 # define helper_ret_ldl_mmu helper_be_ldul_mmu
1368 # define helper_ret_ldq_mmu helper_be_ldq_mmu
1369 # define helper_ret_stw_mmu helper_be_stw_mmu
1370 # define helper_ret_stl_mmu helper_be_stl_mmu
1371 # define helper_ret_stq_mmu helper_be_stq_mmu
1372 # define helper_ret_ldw_cmmu helper_be_ldw_cmmu
1373 # define helper_ret_ldl_cmmu helper_be_ldl_cmmu
1374 # define helper_ret_ldq_cmmu helper_be_ldq_cmmu
1376 # define helper_ret_ldsw_mmu helper_le_ldsw_mmu
1377 # define helper_ret_lduw_mmu helper_le_lduw_mmu
1378 # define helper_ret_ldsl_mmu helper_le_ldsl_mmu
1379 # define helper_ret_ldul_mmu helper_le_ldul_mmu
1380 # define helper_ret_ldl_mmu helper_le_ldul_mmu
1381 # define helper_ret_ldq_mmu helper_le_ldq_mmu
1382 # define helper_ret_stw_mmu helper_le_stw_mmu
1383 # define helper_ret_stl_mmu helper_le_stl_mmu
1384 # define helper_ret_stq_mmu helper_le_stq_mmu
1385 # define helper_ret_ldw_cmmu helper_le_ldw_cmmu
1386 # define helper_ret_ldl_cmmu helper_le_ldl_cmmu
1387 # define helper_ret_ldq_cmmu helper_le_ldq_cmmu
1390 uint32_t helper_atomic_cmpxchgb_mmu(CPUArchState *env, target_ulong addr,
1391 uint32_t cmpv, uint32_t newv,
1392 TCGMemOpIdx oi, uintptr_t retaddr);
1393 uint32_t helper_atomic_cmpxchgw_le_mmu(CPUArchState *env, target_ulong addr,
1394 uint32_t cmpv, uint32_t newv,
1395 TCGMemOpIdx oi, uintptr_t retaddr);
1396 uint32_t helper_atomic_cmpxchgl_le_mmu(CPUArchState *env, target_ulong addr,
1397 uint32_t cmpv, uint32_t newv,
1398 TCGMemOpIdx oi, uintptr_t retaddr);
1399 uint64_t helper_atomic_cmpxchgq_le_mmu(CPUArchState *env, target_ulong addr,
1400 uint64_t cmpv, uint64_t newv,
1401 TCGMemOpIdx oi, uintptr_t retaddr);
1402 uint32_t helper_atomic_cmpxchgw_be_mmu(CPUArchState *env, target_ulong addr,
1403 uint32_t cmpv, uint32_t newv,
1404 TCGMemOpIdx oi, uintptr_t retaddr);
1405 uint32_t helper_atomic_cmpxchgl_be_mmu(CPUArchState *env, target_ulong addr,
1406 uint32_t cmpv, uint32_t newv,
1407 TCGMemOpIdx oi, uintptr_t retaddr);
1408 uint64_t helper_atomic_cmpxchgq_be_mmu(CPUArchState *env, target_ulong addr,
1409 uint64_t cmpv, uint64_t newv,
1410 TCGMemOpIdx oi, uintptr_t retaddr);
1412 #define GEN_ATOMIC_HELPER(NAME, TYPE, SUFFIX) \
1413 TYPE helper_atomic_ ## NAME ## SUFFIX ## _mmu \
1414 (CPUArchState *env, target_ulong addr, TYPE val, \
1415 TCGMemOpIdx oi, uintptr_t retaddr);
1417 #ifdef CONFIG_ATOMIC64
1418 #define GEN_ATOMIC_HELPER_ALL(NAME) \
1419 GEN_ATOMIC_HELPER(NAME, uint32_t, b) \
1420 GEN_ATOMIC_HELPER(NAME, uint32_t, w_le) \
1421 GEN_ATOMIC_HELPER(NAME, uint32_t, w_be) \
1422 GEN_ATOMIC_HELPER(NAME, uint32_t, l_le) \
1423 GEN_ATOMIC_HELPER(NAME, uint32_t, l_be) \
1424 GEN_ATOMIC_HELPER(NAME, uint64_t, q_le) \
1425 GEN_ATOMIC_HELPER(NAME, uint64_t, q_be)
1427 #define GEN_ATOMIC_HELPER_ALL(NAME) \
1428 GEN_ATOMIC_HELPER(NAME, uint32_t, b) \
1429 GEN_ATOMIC_HELPER(NAME, uint32_t, w_le) \
1430 GEN_ATOMIC_HELPER(NAME, uint32_t, w_be) \
1431 GEN_ATOMIC_HELPER(NAME, uint32_t, l_le) \
1432 GEN_ATOMIC_HELPER(NAME, uint32_t, l_be)
1435 GEN_ATOMIC_HELPER_ALL(fetch_add)
1436 GEN_ATOMIC_HELPER_ALL(fetch_sub)
1437 GEN_ATOMIC_HELPER_ALL(fetch_and)
1438 GEN_ATOMIC_HELPER_ALL(fetch_or)
1439 GEN_ATOMIC_HELPER_ALL(fetch_xor)
1440 GEN_ATOMIC_HELPER_ALL(fetch_smin)
1441 GEN_ATOMIC_HELPER_ALL(fetch_umin)
1442 GEN_ATOMIC_HELPER_ALL(fetch_smax)
1443 GEN_ATOMIC_HELPER_ALL(fetch_umax)
1445 GEN_ATOMIC_HELPER_ALL(add_fetch)
1446 GEN_ATOMIC_HELPER_ALL(sub_fetch)
1447 GEN_ATOMIC_HELPER_ALL(and_fetch)
1448 GEN_ATOMIC_HELPER_ALL(or_fetch)
1449 GEN_ATOMIC_HELPER_ALL(xor_fetch)
1450 GEN_ATOMIC_HELPER_ALL(smin_fetch)
1451 GEN_ATOMIC_HELPER_ALL(umin_fetch)
1452 GEN_ATOMIC_HELPER_ALL(smax_fetch)
1453 GEN_ATOMIC_HELPER_ALL(umax_fetch)
1455 GEN_ATOMIC_HELPER_ALL(xchg)
1457 #undef GEN_ATOMIC_HELPER_ALL
1458 #undef GEN_ATOMIC_HELPER
1459 #endif /* CONFIG_SOFTMMU */
1462 * These aren't really a "proper" helpers because TCG cannot manage Int128.
1463 * However, use the same format as the others, for use by the backends.
1465 * The cmpxchg functions are only defined if HAVE_CMPXCHG128;
1466 * the ld/st functions are only defined if HAVE_ATOMIC128,
1467 * as defined by <qemu/atomic128.h>.
1469 Int128 helper_atomic_cmpxchgo_le_mmu(CPUArchState *env, target_ulong addr,
1470 Int128 cmpv, Int128 newv,
1471 TCGMemOpIdx oi, uintptr_t retaddr);
1472 Int128 helper_atomic_cmpxchgo_be_mmu(CPUArchState *env, target_ulong addr,
1473 Int128 cmpv, Int128 newv,
1474 TCGMemOpIdx oi, uintptr_t retaddr);
1476 Int128 helper_atomic_ldo_le_mmu(CPUArchState *env, target_ulong addr,
1477 TCGMemOpIdx oi, uintptr_t retaddr);
1478 Int128 helper_atomic_ldo_be_mmu(CPUArchState *env, target_ulong addr,
1479 TCGMemOpIdx oi, uintptr_t retaddr);
1480 void helper_atomic_sto_le_mmu(CPUArchState *env, target_ulong addr, Int128 val,
1481 TCGMemOpIdx oi, uintptr_t retaddr);
1482 void helper_atomic_sto_be_mmu(CPUArchState *env, target_ulong addr, Int128 val,
1483 TCGMemOpIdx oi, uintptr_t retaddr);