arch/arch.h

   1 #ifndef ARCH_H
   2 #define ARCH_H
   3
   4 #include <stdatomic.h>
   5
   6 #include "../lib/types.h"
   7
   8 enum {
   9         arch_x86_64 = 1,
  10         arch_x86,
  11         arch_ppc,
  12         arch_ia64,
  13         arch_s390,
  14         arch_alpha,
  15         arch_sparc,
  16         arch_sparc64,
  17         arch_arm,
  18         arch_sh,
  19         arch_hppa,
  20         arch_mips,
  21         arch_aarch64,
  22
  23         arch_generic,
  24
  25         arch_nr,
  26 };
  27
  28 enum {
  29         ARCH_FLAG_1     = 1 << 0,
  30         ARCH_FLAG_2     = 1 << 1,
  31         ARCH_FLAG_3     = 1 << 2,
  32         ARCH_FLAG_4     = 1 << 3,
  33 };
  34
  35 extern unsigned long arch_flags;
  36
  37 #define ARCH_CPU_CLOCK_WRAPS
  38
  39 #define atomic_add(p, v)                                        \
  40         atomic_fetch_add((_Atomic typeof(*(p)) *)(p), v)
  41 #define atomic_sub(p, v)                                        \
  42         atomic_fetch_sub((_Atomic typeof(*(p)) *)(p), v)
  43 #define atomic_load_relaxed(p)                                  \
  44         atomic_load_explicit((_Atomic typeof(*(p)) *)(p),       \
  45                              memory_order_relaxed)
  46 #define atomic_load_acquire(p)                                  \
  47         atomic_load_explicit((_Atomic typeof(*(p)) *)(p),       \
  48                              memory_order_acquire)
  49 #define atomic_store_release(p, v)                              \
  50         atomic_store_explicit((_Atomic typeof(*(p)) *)(p), (v), \
  51                               memory_order_release)
  52
  53 /* IWYU pragma: begin_exports */
  54 #if defined(__i386__)
  55 #include "arch-x86.h"
  56 #elif defined(__x86_64__)
  57 #include "arch-x86_64.h"
  58 #elif defined(__powerpc__) || defined(__powerpc64__) || defined(__ppc__)
  59 #include "arch-ppc.h"
  60 #elif defined(__ia64__)
  61 #include "arch-ia64.h"
  62 #elif defined(__alpha__)
  63 #include "arch-alpha.h"
  64 #elif defined(__s390x__) || defined(__s390__)
  65 #include "arch-s390.h"
  66 #elif defined(__sparc__)
  67 #include "arch-sparc.h"
  68 #elif defined(__sparc64__)
  69 #include "arch-sparc64.h"
  70 #elif defined(__arm__)
  71 #include "arch-arm.h"
  72 #elif defined(__mips__) || defined(__mips64__)
  73 #include "arch-mips.h"
  74 #elif defined(__sh__)
  75 #include "arch-sh.h"
  76 #elif defined(__hppa__)
  77 #include "arch-hppa.h"
  78 #elif defined(__aarch64__)
  79 #include "arch-aarch64.h"
  80 #else
  81 #warning "Unknown architecture, attempting to use generic model."
  82 #include "arch-generic.h"
  83 #endif
  84
  85 #include "../lib/ffz.h"
  86 /* IWYU pragma: end_exports */
  87
  88 #ifndef ARCH_HAVE_INIT
  89 static inline int arch_init(char *envp[])
  90 {
  91         return 0;
  92 }
  93 #endif
  94
  95 #ifdef __alpha__
  96 /*
  97  * alpha is the only exception, all other architectures
  98  * have common numbers for new system calls.
  99  */
 100 # ifndef __NR_io_uring_setup
 101 #  define __NR_io_uring_setup           535
 102 # endif
 103 # ifndef __NR_io_uring_enter
 104 #  define __NR_io_uring_enter           536
 105 # endif
 106 # ifndef __NR_io_uring_register
 107 #  define __NR_io_uring_register        537
 108 # endif
 109 #else /* !__alpha__ */
 110 # ifndef __NR_io_uring_setup
 111 #  define __NR_io_uring_setup           425
 112 # endif
 113 # ifndef __NR_io_uring_enter
 114 #  define __NR_io_uring_enter           426
 115 # endif
 116 # ifndef __NR_io_uring_register
 117 #  define __NR_io_uring_register        427
 118 # endif
 119 #endif
 120
 121 #define ARCH_HAVE_IOURING
 122
 123 #endif