1 | /* SPDX-License-Identifier: GPL-2.0 */ |
2 | /* n2-asm.S: Niagara2 RNG hypervisor call assembler. |
3 | * |
4 | * Copyright (C) 2008 David S. Miller <davem@davemloft.net> |
5 | */ |
6 | #include <linux/linkage.h> |
7 | #include <asm/hypervisor.h> |
8 | #include "n2rng.h" |
9 | |
10 | .text |
11 | |
12 | ENTRY(sun4v_rng_get_diag_ctl) |
13 | mov HV_FAST_RNG_GET_DIAG_CTL, %o5 |
14 | ta HV_FAST_TRAP |
15 | retl |
16 | nop |
17 | ENDPROC(sun4v_rng_get_diag_ctl) |
18 | |
19 | ENTRY(sun4v_rng_ctl_read_v1) |
20 | mov %o1, %o3 |
21 | mov %o2, %o4 |
22 | mov HV_FAST_RNG_CTL_READ, %o5 |
23 | ta HV_FAST_TRAP |
24 | stx %o1, [%o3] |
25 | retl |
26 | stx %o2, [%o4] |
27 | ENDPROC(sun4v_rng_ctl_read_v1) |
28 | |
29 | ENTRY(sun4v_rng_ctl_read_v2) |
30 | save %sp, -192, %sp |
31 | mov %i0, %o0 |
32 | mov %i1, %o1 |
33 | mov HV_FAST_RNG_CTL_READ, %o5 |
34 | ta HV_FAST_TRAP |
35 | stx %o1, [%i2] |
36 | stx %o2, [%i3] |
37 | stx %o3, [%i4] |
38 | stx %o4, [%i5] |
39 | ret |
40 | restore %g0, %o0, %o0 |
41 | ENDPROC(sun4v_rng_ctl_read_v2) |
42 | |
43 | ENTRY(sun4v_rng_ctl_write_v1) |
44 | mov %o3, %o4 |
45 | mov HV_FAST_RNG_CTL_WRITE, %o5 |
46 | ta HV_FAST_TRAP |
47 | retl |
48 | stx %o1, [%o4] |
49 | ENDPROC(sun4v_rng_ctl_write_v1) |
50 | |
51 | ENTRY(sun4v_rng_ctl_write_v2) |
52 | mov HV_FAST_RNG_CTL_WRITE, %o5 |
53 | ta HV_FAST_TRAP |
54 | retl |
55 | nop |
56 | ENDPROC(sun4v_rng_ctl_write_v2) |
57 | |
58 | ENTRY(sun4v_rng_data_read_diag_v1) |
59 | mov %o2, %o4 |
60 | mov HV_FAST_RNG_DATA_READ_DIAG, %o5 |
61 | ta HV_FAST_TRAP |
62 | retl |
63 | stx %o1, [%o4] |
64 | ENDPROC(sun4v_rng_data_read_diag_v1) |
65 | |
66 | ENTRY(sun4v_rng_data_read_diag_v2) |
67 | mov %o3, %o4 |
68 | mov HV_FAST_RNG_DATA_READ_DIAG, %o5 |
69 | ta HV_FAST_TRAP |
70 | retl |
71 | stx %o1, [%o4] |
72 | ENDPROC(sun4v_rng_data_read_diag_v2) |
73 | |
74 | ENTRY(sun4v_rng_data_read) |
75 | mov %o1, %o4 |
76 | mov HV_FAST_RNG_DATA_READ, %o5 |
77 | ta HV_FAST_TRAP |
78 | retl |
79 | stx %o1, [%o4] |
80 | ENDPROC(sun4v_rng_data_read) |
81 | |