tools/testing/selftests/powerpc/include/utils.h

   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
  28 int read_auxv(char *buf, ssize_t buf_size);
  29 void *find_auxv_entry(int type, char *auxv);
  30 void *get_auxv_entry(int type);
  31
  32 int pick_online_cpu(void);
  33
  34 static inline bool have_hwcap(unsigned long ftr)
  35 {
  36         return ((unsigned long)get_auxv_entry(AT_HWCAP) & ftr) == ftr;
  37 }
  38
  39 #ifdef AT_HWCAP2
  40 static inline bool have_hwcap2(unsigned long ftr2)
  41 {
  42         return ((unsigned long)get_auxv_entry(AT_HWCAP2) & ftr2) == ftr2;
  43 }
  44 #else
  45 static inline bool have_hwcap2(unsigned long ftr2)
  46 {
  47         return false;
  48 }
  49 #endif
  50
  51 bool is_ppc64le(void);
  52
  53 /* Yes, this is evil */
  54 #define FAIL_IF(x)                                              \
  55 do {                                                            \
  56         if ((x)) {                                              \
  57                 fprintf(stderr,                                 \
  58                 "[FAIL] Test FAILED on line %d\n", __LINE__);   \
  59                 return 1;                                       \
  60         }                                                       \
  61 } while (0)
  62
  63 /* The test harness uses this, yes it's gross */
  64 #define MAGIC_SKIP_RETURN_VALUE 99
  65
  66 #define SKIP_IF(x)                                              \
  67 do {                                                            \
  68         if ((x)) {                                              \
  69                 fprintf(stderr,                                 \
  70                 "[SKIP] Test skipped on line %d\n", __LINE__);  \
  71                 return MAGIC_SKIP_RETURN_VALUE;                 \
  72         }                                                       \
  73 } while (0)
  74
  75 #define _str(s) #s
  76 #define str(s) _str(s)
  77
  78 /* POWER9 feature */
  79 #ifndef PPC_FEATURE2_ARCH_3_00
  80 #define PPC_FEATURE2_ARCH_3_00 0x00800000
  81 #endif
  82
  83 #endif /* _SELFTESTS_POWERPC_UTILS_H */