ceph/src/pmdk/src/libpmem2/pmem2_arch.h

   1 /* SPDX-License-Identifier: BSD-3-Clause */
   2 /* Copyright 2014-2020, Intel Corporation */
   3
   4 /*
   5  * pmem2_arch.h -- core-arch interface
   6  */
   7 #ifndef PMEM2_ARCH_H
   8 #define PMEM2_ARCH_H
   9
  10 #include <stddef.h>
  11 #include "libpmem2.h"
  12 #include "util.h"
  13 #include "valgrind_internal.h"
  14
  15 #ifdef __cplusplus
  16 extern "C" {
  17 #endif
  18
  19 struct pmem2_arch_info;
  20
  21 typedef void (*fence_func)(void);
  22 typedef void (*flush_func)(const void *, size_t);
  23 typedef void *(*memmove_nodrain_func)(void *pmemdest, const void *src,
  24                 size_t len, unsigned flags, flush_func flush);
  25 typedef void *(*memset_nodrain_func)(void *pmemdest, int c, size_t len,
  26                 unsigned flags, flush_func flush);
  27
  28 struct pmem2_arch_info {
  29         memmove_nodrain_func memmove_nodrain;
  30         memmove_nodrain_func memmove_nodrain_eadr;
  31         memset_nodrain_func memset_nodrain;
  32         memset_nodrain_func memset_nodrain_eadr;
  33         flush_func flush;
  34         fence_func fence;
  35         int flush_has_builtin_fence;
  36 };
  37
  38 void pmem2_arch_init(struct pmem2_arch_info *info);
  39
  40 /*
  41  * flush_empty_nolog -- (internal) do not flush the CPU cache
  42  */
  43 static force_inline void
  44 flush_empty_nolog(const void *addr, size_t len)
  45 {
  46         /* NOP, but tell pmemcheck about it */
  47         VALGRIND_DO_FLUSH(addr, len);
  48 }
  49
  50 void *memmove_nodrain_generic(void *pmemdest, const void *src, size_t len,
  51                 unsigned flags, flush_func flush);
  52 void *memset_nodrain_generic(void *pmemdest, int c, size_t len, unsigned flags,
  53                 flush_func flush);
  54
  55 #ifdef __cplusplus
  56 }
  57 #endif
  58
  59 #endif