root/opal/include/opal/sys/cma.h

INCLUDED FROM

DEFINITIONS

1. process_vm_readv
2. process_vm_writev

   1 /*
   2  * Copyright (c) 2011-2012 IBM Corporation.  All rights reserved.
   3  * Copyright (c) 2016      Los Alamos National Security, LLC. All rights
   4  *                         reserved.
   5  * Copyright (c) 2017      Research Organization for Information Science
   6  *                         and Technology (RIST). All rights reserved.
   7  * $COPYRIGHT$
   8  */
   9 
  10 /** @file
  11  *
  12  * Cross Memory Attach syscall definitions.
  13  *
  14  * These are only needed temporarily until these new syscalls
  15  * are incorporated into glibc
  16  */
  17 
  18 #ifndef OPAL_SYS_CMA_H
  19 #define OPAL_SYS_CMA_H 1
  20 
  21 #if !defined(OPAL_ASSEMBLY_ARCH)
  22 /* need opal_config.h for the assembly architecture */
  23 #include "opal_config.h"
  24 #endif
  25 
  26 #include "opal/sys/architecture.h"
  27 
  28 #ifdef HAVE_SYS_TYPES_H
  29 #include <sys/types.h>
  30 #endif
  31 
  32 #ifdef HAVE_UNISTD_H
  33 #include <sys/unistd.h>
  34 #endif
  35 
  36 #ifdef __linux__
  37 
  38 /* Cross Memory Attach is so far only supported under linux */
  39 
  40 #if OPAL_ASSEMBLY_ARCH == OPAL_X86_64
  41 #define __NR_process_vm_readv 310
  42 #define __NR_process_vm_writev 311
  43 #elif OPAL_ASSEMBLY_ARCH == OPAL_IA32
  44 #define __NR_process_vm_readv 347
  45 #define __NR_process_vm_writev 348
  46 #elif OPAL_ASSEMBLY_ARCH == OPAL_IA64
  47 #define __NR_process_vm_readv 1332
  48 #define __NR_process_vm_writev 1333
  49 #elif OPAL_ASSEMBLY_ARCH == OPAL_POWERPC32
  50 #define __NR_process_vm_readv 351
  51 #define __NR_process_vm_writev 352
  52 #elif OPAL_ASSEMBLY_ARCH == OPAL_POWERPC64
  53 #define __NR_process_vm_readv 351
  54 #define __NR_process_vm_writev 352
  55 #elif OPAL_ASSEMBLY_ARCH == OPAL_ARM
  56 
  57 #define __NR_process_vm_readv 376
  58 #define __NR_process_vm_writev 377
  59 
  60 #elif OPAL_ASSEMBLY_ARCH == OPAL_ARM64
  61 
  62 /* ARM64 uses the asm-generic syscall numbers */
  63 
  64 #define __NR_process_vm_readv 270
  65 #define __NR_process_vm_writev 271
  66 
  67 #elif OPAL_ASSEMBLY_ARCH == OPAL_MIPS
  68 
  69 #if _MIPS_SIM == _MIPS_SIM_ABI64
  70 
  71 #define __NR_process_vm_readv 5304
  72 #define __NR_process_vm_writev 5305
  73 
  74 #elif _MIPS_SIM == _MIPS_SIM_NABI32
  75 
  76 #define __NR_process_vm_readv 6309
  77 #define __NR_process_vm_writev 6310
  78 
  79 #else
  80 
  81 #error "Unsupported MIPS architecture for process_vm_readv and process_vm_writev syscalls"
  82 
  83 #endif
  84 
  85 #elif OPAL_ASSEMBLY_ARCH == OPAL_S390
  86 
  87 #define __NR_process_vm_readv   340
  88 #define __NR_process_vm_writev  341
  89 
  90 #elif OPAL_ASSEMBLY_ARCH == OPAL_S390X
  91 
  92 #define __NR_process_vm_readv   340
  93 #define __NR_process_vm_writev  341
  94 
  95 #else
  96 #error "Unsupported architecture for process_vm_readv and process_vm_writev syscalls"
  97 #endif
  98 
  99 
 100 static inline ssize_t
 101 process_vm_readv(pid_t pid,
 102                  const struct iovec  *lvec,
 103                  unsigned long liovcnt,
 104                  const struct iovec *rvec,
 105                  unsigned long riovcnt,
 106                  unsigned long flags)
 107 {
 108   return syscall(__NR_process_vm_readv, pid, lvec, liovcnt, rvec, riovcnt, flags);
 109 }
 110 
 111 static inline ssize_t
 112 process_vm_writev(pid_t pid,
 113                   const struct iovec  *lvec,
 114                   unsigned long liovcnt,
 115                   const struct iovec *rvec,
 116                   unsigned long riovcnt,
 117                   unsigned long flags)
 118 {
 119   return syscall(__NR_process_vm_writev, pid, lvec, liovcnt, rvec, riovcnt, flags);
 120 }
 121 
 122 #endif /* __linux__ */
 123 
 124 #endif /* OPAL_SYS_CMA_H */