1 /*
2 * Tiny Code Generator for QEMU
3 *
4 * Copyright (c) 2009 Ulrich Hecht <uli@suse.de>
5 *
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:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
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
22 * THE SOFTWARE.
23 */
24
25 #ifndef S390_TCG_TARGET_H
26 #define S390_TCG_TARGET_H
27
28 #define TCG_TARGET_INSN_UNIT_SIZE 2
29 #define TCG_TARGET_TLB_DISPLACEMENT_BITS 19
30
31 typedef enum TCGReg {
32 TCG_REG_R0 = 0,
33 TCG_REG_R1,
34 TCG_REG_R2,
35 TCG_REG_R3,
36 TCG_REG_R4,
37 TCG_REG_R5,
38 TCG_REG_R6,
39 TCG_REG_R7,
40 TCG_REG_R8,
41 TCG_REG_R9,
42 TCG_REG_R10,
43 TCG_REG_R11,
44 TCG_REG_R12,
45 TCG_REG_R13,
46 TCG_REG_R14,
47 TCG_REG_R15
48 } TCGReg;
49
50 #define TCG_TARGET_NB_REGS 16
51
52 /* A list of relevant facilities used by this translator. Some of these
53 are required for proper operation, and these are checked at startup. */
54
55 #define FACILITY_ZARCH_ACTIVE (1ULL << (63 - 2))
56 #define FACILITY_LONG_DISP (1ULL << (63 - 18))
57 #define FACILITY_EXT_IMM (1ULL << (63 - 21))
58 #define FACILITY_GEN_INST_EXT (1ULL << (63 - 34))
59 #define FACILITY_LOAD_ON_COND (1ULL << (63 - 45))
60 #define FACILITY_FAST_BCR_SER FACILITY_LOAD_ON_COND
61 #define FACILITY_DISTINCT_OPS FACILITY_LOAD_ON_COND
62 #define FACILITY_LOAD_ON_COND2 (1ULL << (63 - 53))
63
64 extern uint64_t s390_facilities;
65
66 /* optional instructions */
67 #define TCG_TARGET_HAS_div2_i32 1
68 #define TCG_TARGET_HAS_rot_i32 1
69 #define TCG_TARGET_HAS_ext8s_i32 1
70 #define TCG_TARGET_HAS_ext16s_i32 1
71 #define TCG_TARGET_HAS_ext8u_i32 1
72 #define TCG_TARGET_HAS_ext16u_i32 1
73 #define TCG_TARGET_HAS_bswap16_i32 1
74 #define TCG_TARGET_HAS_bswap32_i32 1
75 #define TCG_TARGET_HAS_not_i32 0
76 #define TCG_TARGET_HAS_neg_i32 1
77 #define TCG_TARGET_HAS_andc_i32 0
78 #define TCG_TARGET_HAS_orc_i32 0
79 #define TCG_TARGET_HAS_eqv_i32 0
80 #define TCG_TARGET_HAS_nand_i32 0
81 #define TCG_TARGET_HAS_nor_i32 0
82 #define TCG_TARGET_HAS_clz_i32 0
83 #define TCG_TARGET_HAS_ctz_i32 0
84 #define TCG_TARGET_HAS_ctpop_i32 0
85 #define TCG_TARGET_HAS_deposit_i32 (s390_facilities & FACILITY_GEN_INST_EXT)
86 #define TCG_TARGET_HAS_extract_i32 (s390_facilities & FACILITY_GEN_INST_EXT)
87 #define TCG_TARGET_HAS_sextract_i32 0
88 #define TCG_TARGET_HAS_extract2_i32 0
89 #define TCG_TARGET_HAS_movcond_i32 1
90 #define TCG_TARGET_HAS_add2_i32 1
91 #define TCG_TARGET_HAS_sub2_i32 1
92 #define TCG_TARGET_HAS_mulu2_i32 0
93 #define TCG_TARGET_HAS_muls2_i32 0
94 #define TCG_TARGET_HAS_muluh_i32 0
95 #define TCG_TARGET_HAS_mulsh_i32 0
96 #define TCG_TARGET_HAS_extrl_i64_i32 0
97 #define TCG_TARGET_HAS_extrh_i64_i32 0
98 #define TCG_TARGET_HAS_goto_ptr 1
99 #define TCG_TARGET_HAS_direct_jump (s390_facilities & FACILITY_GEN_INST_EXT)
100
101 #define TCG_TARGET_HAS_div2_i64 1
102 #define TCG_TARGET_HAS_rot_i64 1
103 #define TCG_TARGET_HAS_ext8s_i64 1
104 #define TCG_TARGET_HAS_ext16s_i64 1
105 #define TCG_TARGET_HAS_ext32s_i64 1
106 #define TCG_TARGET_HAS_ext8u_i64 1
107 #define TCG_TARGET_HAS_ext16u_i64 1
108 #define TCG_TARGET_HAS_ext32u_i64 1
109 #define TCG_TARGET_HAS_bswap16_i64 1
110 #define TCG_TARGET_HAS_bswap32_i64 1
111 #define TCG_TARGET_HAS_bswap64_i64 1
112 #define TCG_TARGET_HAS_not_i64 0
113 #define TCG_TARGET_HAS_neg_i64 1
114 #define TCG_TARGET_HAS_andc_i64 0
115 #define TCG_TARGET_HAS_orc_i64 0
116 #define TCG_TARGET_HAS_eqv_i64 0
117 #define TCG_TARGET_HAS_nand_i64 0
118 #define TCG_TARGET_HAS_nor_i64 0
119 #define TCG_TARGET_HAS_clz_i64 (s390_facilities & FACILITY_EXT_IMM)
120 #define TCG_TARGET_HAS_ctz_i64 0
121 #define TCG_TARGET_HAS_ctpop_i64 0
122 #define TCG_TARGET_HAS_deposit_i64 (s390_facilities & FACILITY_GEN_INST_EXT)
123 #define TCG_TARGET_HAS_extract_i64 (s390_facilities & FACILITY_GEN_INST_EXT)
124 #define TCG_TARGET_HAS_sextract_i64 0
125 #define TCG_TARGET_HAS_extract2_i64 0
126 #define TCG_TARGET_HAS_movcond_i64 1
127 #define TCG_TARGET_HAS_add2_i64 1
128 #define TCG_TARGET_HAS_sub2_i64 1
129 #define TCG_TARGET_HAS_mulu2_i64 1
130 #define TCG_TARGET_HAS_muls2_i64 0
131 #define TCG_TARGET_HAS_muluh_i64 0
132 #define TCG_TARGET_HAS_mulsh_i64 0
133
134 /* used for function call generation */
135 #define TCG_REG_CALL_STACK TCG_REG_R15
136 #define TCG_TARGET_STACK_ALIGN 8
137 #define TCG_TARGET_CALL_STACK_OFFSET 160
138
139 #define TCG_TARGET_EXTEND_ARGS 1
140 #define TCG_TARGET_HAS_MEMORY_BSWAP 1
141
142 #define TCG_TARGET_DEFAULT_MO (TCG_MO_ALL & ~TCG_MO_ST_LD)
143
144 enum {
145 TCG_AREG0 = TCG_REG_R10,
146 };
147
flush_icache_range(uintptr_t start,uintptr_t stop)148 static inline void flush_icache_range(uintptr_t start, uintptr_t stop)
149 {
150 }
151
tb_target_set_jmp_target(uintptr_t tc_ptr,uintptr_t jmp_addr,uintptr_t addr)152 static inline void tb_target_set_jmp_target(uintptr_t tc_ptr,
153 uintptr_t jmp_addr, uintptr_t addr)
154 {
155 /* patch the branch destination */
156 intptr_t disp = addr - (jmp_addr - 2);
157 atomic_set((int32_t *)jmp_addr, disp / 2);
158 /* no need to flush icache explicitly */
159 }
160
161 #ifdef CONFIG_SOFTMMU
162 #define TCG_TARGET_NEED_LDST_LABELS
163 #endif
164 #define TCG_TARGET_NEED_POOL_LABELS
165
166 #endif
167