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1 /*
2  * Copyright 2013, Michael Ellerman, IBM Corp.
3  * Licensed under GPLv2.
4  */
5 
6 #ifndef _SELFTESTS_POWERPC_UTILS_H
7 #define _SELFTESTS_POWERPC_UTILS_H
8 
9 #define __cacheline_aligned __attribute__((aligned(128)))
10 
11 #include <stdint.h>
12 #include <stdbool.h>
13 #include <linux/auxvec.h>
14 #include "reg.h"
15 
16 /* Avoid headaches with PRI?64 - just use %ll? always */
17 typedef unsigned long long u64;
18 typedef   signed long long s64;
19 
20 /* Just for familiarity */
21 typedef uint32_t u32;
22 typedef uint16_t u16;
23 typedef uint8_t u8;
24 
25 void test_harness_set_timeout(uint64_t time);
26 int test_harness(int (test_function)(void), char *name);
27 extern void *get_auxv_entry(int type);
28 int pick_online_cpu(void);
29 
have_hwcap(unsigned long ftr)30 static inline bool have_hwcap(unsigned long ftr)
31 {
32 	return ((unsigned long)get_auxv_entry(AT_HWCAP) & ftr) == ftr;
33 }
34 
35 #ifdef AT_HWCAP2
have_hwcap2(unsigned long ftr2)36 static inline bool have_hwcap2(unsigned long ftr2)
37 {
38 	return ((unsigned long)get_auxv_entry(AT_HWCAP2) & ftr2) == ftr2;
39 }
40 #else
have_hwcap2(unsigned long ftr2)41 static inline bool have_hwcap2(unsigned long ftr2)
42 {
43 	return false;
44 }
45 #endif
46 
47 /* Yes, this is evil */
48 #define FAIL_IF(x)						\
49 do {								\
50 	if ((x)) {						\
51 		fprintf(stderr,					\
52 		"[FAIL] Test FAILED on line %d\n", __LINE__);	\
53 		return 1;					\
54 	}							\
55 } while (0)
56 
57 /* The test harness uses this, yes it's gross */
58 #define MAGIC_SKIP_RETURN_VALUE	99
59 
60 #define SKIP_IF(x)						\
61 do {								\
62 	if ((x)) {						\
63 		fprintf(stderr,					\
64 		"[SKIP] Test skipped on line %d\n", __LINE__);	\
65 		return MAGIC_SKIP_RETURN_VALUE;			\
66 	}							\
67 } while (0)
68 
69 #define _str(s) #s
70 #define str(s) _str(s)
71 
72 /* POWER9 feature */
73 #ifndef PPC_FEATURE2_ARCH_3_00
74 #define PPC_FEATURE2_ARCH_3_00 0x00800000
75 #endif
76 
77 #endif /* _SELFTESTS_POWERPC_UTILS_H */
78