License cleanup: add SPDX GPL-2.0 license identifier to files with no license
[sfrench/cifs-2.6.git] / arch / powerpc / include / asm / archrandom.h
1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef _ASM_POWERPC_ARCHRANDOM_H
3 #define _ASM_POWERPC_ARCHRANDOM_H
4
5 #ifdef CONFIG_ARCH_RANDOM
6
7 #include <asm/machdep.h>
8
9 static inline int arch_get_random_long(unsigned long *v)
10 {
11         return 0;
12 }
13
14 static inline int arch_get_random_int(unsigned int *v)
15 {
16         return 0;
17 }
18
19 static inline int arch_get_random_seed_long(unsigned long *v)
20 {
21         if (ppc_md.get_random_seed)
22                 return ppc_md.get_random_seed(v);
23
24         return 0;
25 }
26 static inline int arch_get_random_seed_int(unsigned int *v)
27 {
28         unsigned long val;
29         int rc;
30
31         rc = arch_get_random_long(&val);
32         if (rc)
33                 *v = val;
34
35         return rc;
36 }
37
38 static inline int arch_has_random(void)
39 {
40         return 0;
41 }
42
43 static inline int arch_has_random_seed(void)
44 {
45         return !!ppc_md.get_random_seed;
46 }
47 #endif /* CONFIG_ARCH_RANDOM */
48
49 #ifdef CONFIG_PPC_POWERNV
50 int powernv_hwrng_present(void);
51 int powernv_get_random_long(unsigned long *v);
52 int powernv_get_random_real_mode(unsigned long *v);
53 #else
54 static inline int powernv_hwrng_present(void) { return 0; }
55 static inline int powernv_get_random_real_mode(unsigned long *v) { return 0; }
56 #endif
57
58 #endif /* _ASM_POWERPC_ARCHRANDOM_H */