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810260a8 | 1 | /* |
2 | * Tiny Code Generator for QEMU | |
3 | * | |
4 | * Copyright (c) 2008 Fabrice Bellard | |
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 | #define TCG_TARGET_PPC64 1 | |
25 | ||
26 | #define TCG_TARGET_REG_BITS 64 | |
27 | #define TCG_TARGET_WORDS_BIGENDIAN | |
28 | #define TCG_TARGET_NB_REGS 32 | |
29 | ||
30 | enum { | |
31 | TCG_REG_R0 = 0, | |
32 | TCG_REG_R1, | |
33 | TCG_REG_R2, | |
34 | TCG_REG_R3, | |
35 | TCG_REG_R4, | |
36 | TCG_REG_R5, | |
37 | TCG_REG_R6, | |
38 | TCG_REG_R7, | |
39 | TCG_REG_R8, | |
40 | TCG_REG_R9, | |
41 | TCG_REG_R10, | |
42 | TCG_REG_R11, | |
43 | TCG_REG_R12, | |
44 | TCG_REG_R13, | |
45 | TCG_REG_R14, | |
46 | TCG_REG_R15, | |
47 | TCG_REG_R16, | |
48 | TCG_REG_R17, | |
49 | TCG_REG_R18, | |
50 | TCG_REG_R19, | |
51 | TCG_REG_R20, | |
52 | TCG_REG_R21, | |
53 | TCG_REG_R22, | |
54 | TCG_REG_R23, | |
55 | TCG_REG_R24, | |
56 | TCG_REG_R25, | |
57 | TCG_REG_R26, | |
58 | TCG_REG_R27, | |
59 | TCG_REG_R28, | |
60 | TCG_REG_R29, | |
61 | TCG_REG_R30, | |
62 | TCG_REG_R31 | |
63 | }; | |
64 | ||
65 | /* used for function call generation */ | |
66 | #define TCG_REG_CALL_STACK TCG_REG_R1 | |
67 | #define TCG_TARGET_STACK_ALIGN 16 | |
e7d05e6f | 68 | #define TCG_TARGET_CALL_STACK_OFFSET 48 |
810260a8 | 69 | |
70 | /* optional instructions */ | |
71 | #define TCG_TARGET_HAS_neg_i32 | |
72 | #define TCG_TARGET_HAS_div_i32 | |
73 | #define TCG_TARGET_HAS_neg_i64 | |
74 | #define TCG_TARGET_HAS_div_i64 | |
e46b9681 | 75 | #define TCG_TARGET_HAS_ext8s_i32 |
76 | #define TCG_TARGET_HAS_ext16s_i32 | |
77 | #define TCG_TARGET_HAS_ext8s_i64 | |
78 | #define TCG_TARGET_HAS_ext16s_i64 | |
79 | #define TCG_TARGET_HAS_ext32s_i64 | |
810260a8 | 80 | |
81 | #define TCG_AREG0 TCG_REG_R27 | |
82 | #define TCG_AREG1 TCG_REG_R24 | |
83 | #define TCG_AREG2 TCG_REG_R25 | |
84 | #define TCG_AREG3 TCG_REG_R26 | |
85 | ||
86 | /* taken directly from tcg-dyngen.c */ | |
87 | #define MIN_CACHE_LINE_SIZE 8 /* conservative value */ | |
88 | ||
89 | static inline void flush_icache_range(unsigned long start, unsigned long stop) | |
90 | { | |
91 | unsigned long p; | |
92 | ||
93 | start &= ~(MIN_CACHE_LINE_SIZE - 1); | |
94 | stop = (stop + MIN_CACHE_LINE_SIZE - 1) & ~(MIN_CACHE_LINE_SIZE - 1); | |
95 | ||
96 | for (p = start; p < stop; p += MIN_CACHE_LINE_SIZE) { | |
97 | asm volatile ("dcbst 0,%0" : : "r"(p) : "memory"); | |
98 | } | |
99 | asm volatile ("sync" : : : "memory"); | |
100 | for (p = start; p < stop; p += MIN_CACHE_LINE_SIZE) { | |
101 | asm volatile ("icbi 0,%0" : : "r"(p) : "memory"); | |
102 | } | |
103 | asm volatile ("sync" : : : "memory"); | |
104 | asm volatile ("isync" : : : "memory"); | |
105 | } |