Commit | Line | Data |
---|---|---|
b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
d18019a5 RB |
2 | #include <linux/linkage.h> |
3 | ||
4 | /* Offset is based on macros from arch/powerpc/include/uapi/asm/ptrace.h. */ | |
5 | #define R0 0 | |
6 | #define R1 1 * 8 | |
7 | #define R2 2 * 8 | |
8 | #define R3 3 * 8 | |
9 | #define R4 4 * 8 | |
10 | #define R5 5 * 8 | |
11 | #define R6 6 * 8 | |
12 | #define R7 7 * 8 | |
13 | #define R8 8 * 8 | |
14 | #define R9 9 * 8 | |
15 | #define R10 10 * 8 | |
16 | #define R11 11 * 8 | |
17 | #define R12 12 * 8 | |
18 | #define R13 13 * 8 | |
19 | #define R14 14 * 8 | |
20 | #define R15 15 * 8 | |
21 | #define R16 16 * 8 | |
22 | #define R17 17 * 8 | |
23 | #define R18 18 * 8 | |
24 | #define R19 19 * 8 | |
25 | #define R20 20 * 8 | |
26 | #define R21 21 * 8 | |
27 | #define R22 22 * 8 | |
28 | #define R23 23 * 8 | |
29 | #define R24 24 * 8 | |
30 | #define R25 25 * 8 | |
31 | #define R26 26 * 8 | |
32 | #define R27 27 * 8 | |
33 | #define R28 28 * 8 | |
34 | #define R29 29 * 8 | |
35 | #define R30 30 * 8 | |
36 | #define R31 31 * 8 | |
37 | #define NIP 32 * 8 | |
38 | #define CTR 35 * 8 | |
39 | #define LINK 36 * 8 | |
40 | #define XER 37 * 8 | |
41 | ||
42 | .globl perf_regs_load | |
43 | perf_regs_load: | |
44 | std 0, R0(3) | |
45 | std 1, R1(3) | |
46 | std 2, R2(3) | |
47 | std 3, R3(3) | |
48 | std 4, R4(3) | |
49 | std 5, R5(3) | |
50 | std 6, R6(3) | |
51 | std 7, R7(3) | |
52 | std 8, R8(3) | |
53 | std 9, R9(3) | |
54 | std 10, R10(3) | |
55 | std 11, R11(3) | |
56 | std 12, R12(3) | |
57 | std 13, R13(3) | |
58 | std 14, R14(3) | |
59 | std 15, R15(3) | |
60 | std 16, R16(3) | |
61 | std 17, R17(3) | |
62 | std 18, R18(3) | |
63 | std 19, R19(3) | |
64 | std 20, R20(3) | |
65 | std 21, R21(3) | |
66 | std 22, R22(3) | |
67 | std 23, R23(3) | |
68 | std 24, R24(3) | |
69 | std 25, R25(3) | |
70 | std 26, R26(3) | |
71 | std 27, R27(3) | |
72 | std 28, R28(3) | |
73 | std 29, R29(3) | |
74 | std 30, R30(3) | |
75 | std 31, R31(3) | |
76 | ||
77 | /* store NIP */ | |
78 | mflr 4 | |
79 | std 4, NIP(3) | |
80 | ||
81 | /* Store LR */ | |
82 | std 4, LINK(3) | |
83 | ||
84 | /* Store XER */ | |
85 | mfxer 4 | |
86 | std 4, XER(3) | |
87 | ||
88 | /* Store CTR */ | |
89 | mfctr 4 | |
90 | std 4, CTR(3) | |
91 | ||
92 | /* Restore original value of r4 */ | |
93 | ld 4, R4(3) | |
94 | ||
95 | blr |