Ravi Bangoria | d18019a | 2016-09-19 02:38:20 -0400 | [diff] [blame] | 1 | #include <linux/linkage.h> |
2 | |||||
3 | /* Offset is based on macros from arch/powerpc/include/uapi/asm/ptrace.h. */ | ||||
4 | #define R0 0 | ||||
5 | #define R1 1 * 8 | ||||
6 | #define R2 2 * 8 | ||||
7 | #define R3 3 * 8 | ||||
8 | #define R4 4 * 8 | ||||
9 | #define R5 5 * 8 | ||||
10 | #define R6 6 * 8 | ||||
11 | #define R7 7 * 8 | ||||
12 | #define R8 8 * 8 | ||||
13 | #define R9 9 * 8 | ||||
14 | #define R10 10 * 8 | ||||
15 | #define R11 11 * 8 | ||||
16 | #define R12 12 * 8 | ||||
17 | #define R13 13 * 8 | ||||
18 | #define R14 14 * 8 | ||||
19 | #define R15 15 * 8 | ||||
20 | #define R16 16 * 8 | ||||
21 | #define R17 17 * 8 | ||||
22 | #define R18 18 * 8 | ||||
23 | #define R19 19 * 8 | ||||
24 | #define R20 20 * 8 | ||||
25 | #define R21 21 * 8 | ||||
26 | #define R22 22 * 8 | ||||
27 | #define R23 23 * 8 | ||||
28 | #define R24 24 * 8 | ||||
29 | #define R25 25 * 8 | ||||
30 | #define R26 26 * 8 | ||||
31 | #define R27 27 * 8 | ||||
32 | #define R28 28 * 8 | ||||
33 | #define R29 29 * 8 | ||||
34 | #define R30 30 * 8 | ||||
35 | #define R31 31 * 8 | ||||
36 | #define NIP 32 * 8 | ||||
37 | #define CTR 35 * 8 | ||||
38 | #define LINK 36 * 8 | ||||
39 | #define XER 37 * 8 | ||||
40 | |||||
41 | .globl perf_regs_load | ||||
42 | perf_regs_load: | ||||
43 | std 0, R0(3) | ||||
44 | std 1, R1(3) | ||||
45 | std 2, R2(3) | ||||
46 | std 3, R3(3) | ||||
47 | std 4, R4(3) | ||||
48 | std 5, R5(3) | ||||
49 | std 6, R6(3) | ||||
50 | std 7, R7(3) | ||||
51 | std 8, R8(3) | ||||
52 | std 9, R9(3) | ||||
53 | std 10, R10(3) | ||||
54 | std 11, R11(3) | ||||
55 | std 12, R12(3) | ||||
56 | std 13, R13(3) | ||||
57 | std 14, R14(3) | ||||
58 | std 15, R15(3) | ||||
59 | std 16, R16(3) | ||||
60 | std 17, R17(3) | ||||
61 | std 18, R18(3) | ||||
62 | std 19, R19(3) | ||||
63 | std 20, R20(3) | ||||
64 | std 21, R21(3) | ||||
65 | std 22, R22(3) | ||||
66 | std 23, R23(3) | ||||
67 | std 24, R24(3) | ||||
68 | std 25, R25(3) | ||||
69 | std 26, R26(3) | ||||
70 | std 27, R27(3) | ||||
71 | std 28, R28(3) | ||||
72 | std 29, R29(3) | ||||
73 | std 30, R30(3) | ||||
74 | std 31, R31(3) | ||||
75 | |||||
76 | /* store NIP */ | ||||
77 | mflr 4 | ||||
78 | std 4, NIP(3) | ||||
79 | |||||
80 | /* Store LR */ | ||||
81 | std 4, LINK(3) | ||||
82 | |||||
83 | /* Store XER */ | ||||
84 | mfxer 4 | ||||
85 | std 4, XER(3) | ||||
86 | |||||
87 | /* Store CTR */ | ||||
88 | mfctr 4 | ||||
89 | std 4, CTR(3) | ||||
90 | |||||
91 | /* Restore original value of r4 */ | ||||
92 | ld 4, R4(3) | ||||
93 | |||||
94 | blr |