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_load_acquire(p)                                  \
  40         atomic_load_explicit((_Atomic typeof(*(p)) *)(p),       \
  41                              memory_order_acquire)
  42 #define atomic_store_release(p, v)                              \
  43         atomic_store_explicit((_Atomic typeof(*(p)) *)(p), (v), \
  44                               memory_order_release)
  45
  46 /* IWYU pragma: begin_exports */
  47 #if defined(__i386__)
  48 #include "arch-x86.h"
  49 #elif defined(__x86_64__)
  50 #include "arch-x86_64.h"
  51 #elif defined(__powerpc__) || defined(__powerpc64__) || defined(__ppc__)
  52 #include "arch-ppc.h"
  53 #elif defined(__ia64__)
  54 #include "arch-ia64.h"
  55 #elif defined(__alpha__)
  56 #include "arch-alpha.h"
  57 #elif defined(__s390x__) || defined(__s390__)
  58 #include "arch-s390.h"
  59 #elif defined(__sparc__)
  60 #include "arch-sparc.h"
  61 #elif defined(__sparc64__)
  62 #include "arch-sparc64.h"
  63 #elif defined(__arm__)
  64 #include "arch-arm.h"
  65 #elif defined(__mips__) || defined(__mips64__)
  66 #include "arch-mips.h"
  67 #elif defined(__sh__)
  68 #include "arch-sh.h"
  69 #elif defined(__hppa__)
  70 #include "arch-hppa.h"
  71 #elif defined(__aarch64__)
  72 #include "arch-aarch64.h"
  73 #else
  74 #warning "Unknown architecture, attempting to use generic model."
  75 #include "arch-generic.h"
  76 #endif
  77
  78 #include "../lib/ffz.h"
  79 /* IWYU pragma: end_exports */
  80
  81 #ifndef ARCH_HAVE_INIT
  82 static inline int arch_init(char *envp[])
  83 {
  84         return 0;
  85 }
  86 #endif
  87
  88 #ifdef __alpha__
  89 /*
  90  * alpha is the only exception, all other architectures
  91  * have common numbers for new system calls.
  92  */
  93 # ifndef __NR_io_uring_setup
  94 #  define __NR_io_uring_setup           535
  95 # endif
  96 # ifndef __NR_io_uring_enter
  97 #  define __NR_io_uring_enter           536
  98 # endif
  99 # ifndef __NR_io_uring_register
 100 #  define __NR_io_uring_register        537
 101 # endif
 102 #else /* !__alpha__ */
 103 # ifndef __NR_io_uring_setup
 104 #  define __NR_io_uring_setup           425
 105 # endif
 106 # ifndef __NR_io_uring_enter
 107 #  define __NR_io_uring_enter           426
 108 # endif
 109 # ifndef __NR_io_uring_register
 110 #  define __NR_io_uring_register        427
 111 # endif
 112 #endif
 113
 114 #define ARCH_HAVE_IOURING
 115
 116 #endif