xref: /linux/tools/testing/selftests/powerpc/include/gpr_asm.h (revision e5c86679d5e864947a52fb31e45a425dea3e7fa9)
1 /*
2  * Copyright 2016, Cyril Bur, IBM Corp.
3  *
4  * This program is free software; you can redistribute it and/or
5  * modify it under the terms of the GNU General Public License
6  * as published by the Free Software Foundation; either version
7  * 2 of the License, or (at your option) any later version.
8  */
9 
10 #ifndef _SELFTESTS_POWERPC_GPR_ASM_H
11 #define _SELFTESTS_POWERPC_GPR_ASM_H
12 
13 #include "basic_asm.h"
14 
15 #define __PUSH_NVREGS(top_pos); \
16 	std r31,(top_pos)(%r1); \
17 	std r30,(top_pos - 8)(%r1); \
18 	std r29,(top_pos - 16)(%r1); \
19 	std r28,(top_pos - 24)(%r1); \
20 	std r27,(top_pos - 32)(%r1); \
21 	std r26,(top_pos - 40)(%r1); \
22 	std r25,(top_pos - 48)(%r1); \
23 	std r24,(top_pos - 56)(%r1); \
24 	std r23,(top_pos - 64)(%r1); \
25 	std r22,(top_pos - 72)(%r1); \
26 	std r21,(top_pos - 80)(%r1); \
27 	std r20,(top_pos - 88)(%r1); \
28 	std r19,(top_pos - 96)(%r1); \
29 	std r18,(top_pos - 104)(%r1); \
30 	std r17,(top_pos - 112)(%r1); \
31 	std r16,(top_pos - 120)(%r1); \
32 	std r15,(top_pos - 128)(%r1); \
33 	std r14,(top_pos - 136)(%r1)
34 
35 #define __POP_NVREGS(top_pos); \
36 	ld r31,(top_pos)(%r1); \
37 	ld r30,(top_pos - 8)(%r1); \
38 	ld r29,(top_pos - 16)(%r1); \
39 	ld r28,(top_pos - 24)(%r1); \
40 	ld r27,(top_pos - 32)(%r1); \
41 	ld r26,(top_pos - 40)(%r1); \
42 	ld r25,(top_pos - 48)(%r1); \
43 	ld r24,(top_pos - 56)(%r1); \
44 	ld r23,(top_pos - 64)(%r1); \
45 	ld r22,(top_pos - 72)(%r1); \
46 	ld r21,(top_pos - 80)(%r1); \
47 	ld r20,(top_pos - 88)(%r1); \
48 	ld r19,(top_pos - 96)(%r1); \
49 	ld r18,(top_pos - 104)(%r1); \
50 	ld r17,(top_pos - 112)(%r1); \
51 	ld r16,(top_pos - 120)(%r1); \
52 	ld r15,(top_pos - 128)(%r1); \
53 	ld r14,(top_pos - 136)(%r1)
54 
55 #define PUSH_NVREGS(stack_size) \
56 	__PUSH_NVREGS(stack_size + STACK_FRAME_MIN_SIZE)
57 
58 /* 18 NV FPU REGS */
59 #define PUSH_NVREGS_BELOW_FPU(stack_size) \
60 	__PUSH_NVREGS(stack_size + STACK_FRAME_MIN_SIZE - (18 * 8))
61 
62 #define POP_NVREGS(stack_size) \
63 	__POP_NVREGS(stack_size + STACK_FRAME_MIN_SIZE)
64 
65 /* 18 NV FPU REGS */
66 #define POP_NVREGS_BELOW_FPU(stack_size) \
67 	__POP_NVREGS(stack_size + STACK_FRAME_MIN_SIZE - (18 * 8))
68 
69 /*
70  * Careful calling this, it will 'clobber' NVGPRs (by design)
71  * Don't call this from C
72  */
73 FUNC_START(load_gpr)
74 	ld	r14,0(r3)
75 	ld	r15,8(r3)
76 	ld	r16,16(r3)
77 	ld	r17,24(r3)
78 	ld	r18,32(r3)
79 	ld	r19,40(r3)
80 	ld	r20,48(r3)
81 	ld	r21,56(r3)
82 	ld	r22,64(r3)
83 	ld	r23,72(r3)
84 	ld	r24,80(r3)
85 	ld	r25,88(r3)
86 	ld	r26,96(r3)
87 	ld	r27,104(r3)
88 	ld	r28,112(r3)
89 	ld	r29,120(r3)
90 	ld	r30,128(r3)
91 	ld	r31,136(r3)
92 	blr
93 FUNC_END(load_gpr)
94 
95 
96 #endif /* _SELFTESTS_POWERPC_GPR_ASM_H */
97