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| 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
|---|---|
| 2 | #ifndef _SELFTESTS_POWERPC_INSTRUCTIONS_H |
| 3 | #define _SELFTESTS_POWERPC_INSTRUCTIONS_H |
| 4 | |
| 5 | #include <stdio.h> |
| 6 | #include <stdlib.h> |
| 7 | |
| 8 | /* This defines the "copy" instruction from Power ISA 3.0 Book II, section 4.4. */ |
| 9 | #define __COPY(RA, RB, L) \ |
| 10 | (0x7c00060c | (RA) << (31-15) | (RB) << (31-20) | (L) << (31-10)) |
| 11 | #define COPY(RA, RB, L) \ |
| 12 | .long __COPY((RA), (RB), (L)) |
| 13 | |
| 14 | static inline void copy(void *i) |
| 15 | { |
| 16 | asm volatile(str(COPY(0, %0, 0))";" |
| 17 | : |
| 18 | : "b" (i) |
| 19 | : "memory" |
| 20 | ); |
| 21 | } |
| 22 | |
| 23 | static inline void copy_first(void *i) |
| 24 | { |
| 25 | asm volatile(str(COPY(0, %0, 1))";" |
| 26 | : |
| 27 | : "b" (i) |
| 28 | : "memory" |
| 29 | ); |
| 30 | } |
| 31 | |
| 32 | /* This defines the "paste" instruction from Power ISA 3.0 Book II, section 4.4. */ |
| 33 | #define __PASTE(RA, RB, L, RC) \ |
| 34 | (0x7c00070c | (RA) << (31-15) | (RB) << (31-20) | (L) << (31-10) | (RC) << (31-31)) |
| 35 | #define PASTE(RA, RB, L, RC) \ |
| 36 | .long __PASTE((RA), (RB), (L), (RC)) |
| 37 | |
| 38 | static inline int paste(void *i) |
| 39 | { |
| 40 | int cr; |
| 41 | |
| 42 | asm volatile(str(PASTE(0, %1, 0, 0))";" |
| 43 | "mfcr %0;" |
| 44 | : "=r" (cr) |
| 45 | : "b" (i) |
| 46 | : "memory" |
| 47 | ); |
| 48 | return cr; |
| 49 | } |
| 50 | |
| 51 | static inline int paste_last(void *i) |
| 52 | { |
| 53 | int cr; |
| 54 | |
| 55 | asm volatile(str(PASTE(0, %1, 1, 1))";" |
| 56 | "mfcr %0;" |
| 57 | : "=r" (cr) |
| 58 | : "b" (i) |
| 59 | : "memory" |
| 60 | ); |
| 61 | return cr; |
| 62 | } |
| 63 | |
| 64 | #define PPC_INST_COPY __COPY(0, 0, 0) |
| 65 | #define PPC_INST_COPY_FIRST __COPY(0, 0, 1) |
| 66 | #define PPC_INST_PASTE __PASTE(0, 0, 0, 0) |
| 67 | #define PPC_INST_PASTE_LAST __PASTE(0, 0, 1, 1) |
| 68 | |
| 69 | /* This defines the prefixed load/store instructions */ |
| 70 | #ifdef __ASSEMBLY__ |
| 71 | # define stringify_in_c(...) __VA_ARGS__ |
| 72 | #else |
| 73 | # define __stringify_in_c(...) #__VA_ARGS__ |
| 74 | # define stringify_in_c(...) __stringify_in_c(__VA_ARGS__) " " |
| 75 | #endif |
| 76 | |
| 77 | #define __PPC_RA(a) (((a) & 0x1f) << 16) |
| 78 | #define __PPC_RS(s) (((s) & 0x1f) << 21) |
| 79 | #define __PPC_RT(t) __PPC_RS(t) |
| 80 | #define __PPC_PREFIX_R(r) (((r) & 0x1) << 20) |
| 81 | |
| 82 | #define PPC_PREFIX_MLS 0x06000000 |
| 83 | #define PPC_PREFIX_8LS 0x04000000 |
| 84 | |
| 85 | #define PPC_INST_LBZ 0x88000000 |
| 86 | #define PPC_INST_LHZ 0xa0000000 |
| 87 | #define PPC_INST_LHA 0xa8000000 |
| 88 | #define PPC_INST_LWZ 0x80000000 |
| 89 | #define PPC_INST_STB 0x98000000 |
| 90 | #define PPC_INST_STH 0xb0000000 |
| 91 | #define PPC_INST_STW 0x90000000 |
| 92 | #define PPC_INST_STD 0xf8000000 |
| 93 | #define PPC_INST_LFS 0xc0000000 |
| 94 | #define PPC_INST_LFD 0xc8000000 |
| 95 | #define PPC_INST_STFS 0xd0000000 |
| 96 | #define PPC_INST_STFD 0xd8000000 |
| 97 | |
| 98 | #define PREFIX_MLS(instr, t, a, r, d) stringify_in_c(.balign 64, , 4;) \ |
| 99 | stringify_in_c(.long PPC_PREFIX_MLS | \ |
| 100 | __PPC_PREFIX_R(r) | \ |
| 101 | (((d) >> 16) & 0x3ffff);) \ |
| 102 | stringify_in_c(.long (instr) | \ |
| 103 | __PPC_RT(t) | \ |
| 104 | __PPC_RA(a) | \ |
| 105 | ((d) & 0xffff);\n) |
| 106 | |
| 107 | #define PREFIX_8LS(instr, t, a, r, d) stringify_in_c(.balign 64, , 4;) \ |
| 108 | stringify_in_c(.long PPC_PREFIX_8LS | \ |
| 109 | __PPC_PREFIX_R(r) | \ |
| 110 | (((d) >> 16) & 0x3ffff);) \ |
| 111 | stringify_in_c(.long (instr) | \ |
| 112 | __PPC_RT(t) | \ |
| 113 | __PPC_RA(a) | \ |
| 114 | ((d) & 0xffff);\n) |
| 115 | |
| 116 | /* Prefixed Integer Load/Store instructions */ |
| 117 | #define PLBZ(t, a, r, d) PREFIX_MLS(PPC_INST_LBZ, t, a, r, d) |
| 118 | #define PLHZ(t, a, r, d) PREFIX_MLS(PPC_INST_LHZ, t, a, r, d) |
| 119 | #define PLHA(t, a, r, d) PREFIX_MLS(PPC_INST_LHA, t, a, r, d) |
| 120 | #define PLWZ(t, a, r, d) PREFIX_MLS(PPC_INST_LWZ, t, a, r, d) |
| 121 | #define PLWA(t, a, r, d) PREFIX_8LS(0xa4000000, t, a, r, d) |
| 122 | #define PLD(t, a, r, d) PREFIX_8LS(0xe4000000, t, a, r, d) |
| 123 | #define PLQ(t, a, r, d) PREFIX_8LS(0xe0000000, t, a, r, d) |
| 124 | #define PSTB(s, a, r, d) PREFIX_MLS(PPC_INST_STB, s, a, r, d) |
| 125 | #define PSTH(s, a, r, d) PREFIX_MLS(PPC_INST_STH, s, a, r, d) |
| 126 | #define PSTW(s, a, r, d) PREFIX_MLS(PPC_INST_STW, s, a, r, d) |
| 127 | #define PSTD(s, a, r, d) PREFIX_8LS(0xf4000000, s, a, r, d) |
| 128 | #define PSTQ(s, a, r, d) PREFIX_8LS(0xf0000000, s, a, r, d) |
| 129 | |
| 130 | /* Prefixed Floating-Point Load/Store Instructions */ |
| 131 | #define PLFS(frt, a, r, d) PREFIX_MLS(PPC_INST_LFS, frt, a, r, d) |
| 132 | #define PLFD(frt, a, r, d) PREFIX_MLS(PPC_INST_LFD, frt, a, r, d) |
| 133 | #define PSTFS(frs, a, r, d) PREFIX_MLS(PPC_INST_STFS, frs, a, r, d) |
| 134 | #define PSTFD(frs, a, r, d) PREFIX_MLS(PPC_INST_STFD, frs, a, r, d) |
| 135 | |
| 136 | /* Prefixed VSX Load/Store Instructions */ |
| 137 | #define PLXSD(vrt, a, r, d) PREFIX_8LS(0xa8000000, vrt, a, r, d) |
| 138 | #define PLXSSP(vrt, a, r, d) PREFIX_8LS(0xac000000, vrt, a, r, d) |
| 139 | #define PLXV0(s, a, r, d) PREFIX_8LS(0xc8000000, s, a, r, d) |
| 140 | #define PLXV1(s, a, r, d) PREFIX_8LS(0xcc000000, s, a, r, d) |
| 141 | #define PSTXSD(vrs, a, r, d) PREFIX_8LS(0xb8000000, vrs, a, r, d) |
| 142 | #define PSTXSSP(vrs, a, r, d) PREFIX_8LS(0xbc000000, vrs, a, r, d) |
| 143 | #define PSTXV0(s, a, r, d) PREFIX_8LS(0xd8000000, s, a, r, d) |
| 144 | #define PSTXV1(s, a, r, d) PREFIX_8LS(0xdc000000, s, a, r, d) |
| 145 | |
| 146 | #endif /* _SELFTESTS_POWERPC_INSTRUCTIONS_H */ |
| 147 |
Warning: This file is not a C or C++ file. It does not have highlighting.