tools/testing/selftests/powerpc/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
  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
  30 static inline bool have_hwcap(unsigned long ftr)
  31 {
  32         return ((unsigned long)get_auxv_entry(AT_HWCAP) & ftr) == ftr;
  33 }
  34
  35 static inline bool have_hwcap2(unsigned long ftr2)
  36 {
  37         return ((unsigned long)get_auxv_entry(AT_HWCAP2) & ftr2) == ftr2;
  38 }
  39
  40 /* Yes, this is evil */
  41 #define FAIL_IF(x)                                              \
  42 do {                                                            \
  43         if ((x)) {                                              \
  44                 fprintf(stderr,                                 \
  45                 "[FAIL] Test FAILED on line %d\n", __LINE__);   \
  46                 return 1;                                       \
  47         }                                                       \
  48 } while (0)
  49
  50 /* The test harness uses this, yes it's gross */
  51 #define MAGIC_SKIP_RETURN_VALUE 99
  52
  53 #define SKIP_IF(x)                                              \
  54 do {                                                            \
  55         if ((x)) {                                              \
  56                 fprintf(stderr,                                 \
  57                 "[SKIP] Test skipped on line %d\n", __LINE__);  \
  58                 return MAGIC_SKIP_RETURN_VALUE;                 \
  59         }                                                       \
  60 } while (0)
  61
  62 #define _str(s) #s
  63 #define str(s) _str(s)
  64
  65 /* POWER9 feature */
  66 #ifndef PPC_FEATURE2_ARCH_3_00
  67 #define PPC_FEATURE2_ARCH_3_00 0x00800000
  68 #endif
  69
  70 #endif /* _SELFTESTS_POWERPC_UTILS_H */