LXR qemu/include/exec/memory_ldst

   1/*
   2 *  Memory access templates for MemoryRegionCache
   3 *
   4 *  Copyright (c) 2018 Red Hat, Inc.
   5 *
   6 * This library is free software; you can redistribute it and/or
   7 * modify it under the terms of the GNU Lesser General Public
   8 * License as published by the Free Software Foundation; either
   9 * version 2 of the License, or (at your option) any later version.
  10 *
  11 * This library is distributed in the hope that it will be useful,
  12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14 * Lesser General Public License for more details.
  15 *
  16 * You should have received a copy of the GNU Lesser General Public
  17 * License along with this library; if not, see <http://www.gnu.org/licenses/>.
  18 */
  19
  20#define ADDRESS_SPACE_LD_CACHED(size) \
  21    glue(glue(address_space_ld, size), glue(ENDIANNESS, _cached))
  22#define ADDRESS_SPACE_LD_CACHED_SLOW(size) \
  23    glue(glue(address_space_ld, size), glue(ENDIANNESS, _cached_slow))
  24#define LD_P(size) \
  25    glue(glue(ld, size), glue(ENDIANNESS, _p))
  26
  27static inline uint32_t ADDRESS_SPACE_LD_CACHED(l)(MemoryRegionCache *cache,
  28    hwaddr addr, MemTxAttrs attrs, MemTxResult *result)
  29{
  30    assert(addr < cache->len && 4 <= cache->len - addr);
  31    if (likely(cache->ptr)) {
  32        return LD_P(l)(cache->ptr + addr);
  33    } else {
  34        return ADDRESS_SPACE_LD_CACHED_SLOW(l)(cache, addr, attrs, result);
  35    }
  36}
  37
  38static inline uint64_t ADDRESS_SPACE_LD_CACHED(q)(MemoryRegionCache *cache,
  39    hwaddr addr, MemTxAttrs attrs, MemTxResult *result)
  40{
  41    assert(addr < cache->len && 8 <= cache->len - addr);
  42    if (likely(cache->ptr)) {
  43        return LD_P(q)(cache->ptr + addr);
  44    } else {
  45        return ADDRESS_SPACE_LD_CACHED_SLOW(q)(cache, addr, attrs, result);
  46    }
  47}
  48
  49static inline uint32_t ADDRESS_SPACE_LD_CACHED(uw)(MemoryRegionCache *cache,
  50    hwaddr addr, MemTxAttrs attrs, MemTxResult *result)
  51{
  52    assert(addr < cache->len && 2 <= cache->len - addr);
  53    if (likely(cache->ptr)) {
  54        return LD_P(uw)(cache->ptr + addr);
  55    } else {
  56        return ADDRESS_SPACE_LD_CACHED_SLOW(uw)(cache, addr, attrs, result);
  57    }
  58}
  59
  60#undef ADDRESS_SPACE_LD_CACHED
  61#undef ADDRESS_SPACE_LD_CACHED_SLOW
  62#undef LD_P
  63
  64#define ADDRESS_SPACE_ST_CACHED(size) \
  65    glue(glue(address_space_st, size), glue(ENDIANNESS, _cached))
  66#define ADDRESS_SPACE_ST_CACHED_SLOW(size) \
  67    glue(glue(address_space_st, size), glue(ENDIANNESS, _cached_slow))
  68#define ST_P(size) \
  69    glue(glue(st, size), glue(ENDIANNESS, _p))
  70
  71static inline void ADDRESS_SPACE_ST_CACHED(l)(MemoryRegionCache *cache,
  72    hwaddr addr, uint32_t val, MemTxAttrs attrs, MemTxResult *result)
  73{
  74    assert(addr < cache->len && 4 <= cache->len - addr);
  75    if (likely(cache->ptr)) {
  76        ST_P(l)(cache->ptr + addr, val);
  77    } else {
  78        ADDRESS_SPACE_ST_CACHED_SLOW(l)(cache, addr, val, attrs, result);
  79    }
  80}
  81
  82static inline void ADDRESS_SPACE_ST_CACHED(w)(MemoryRegionCache *cache,
  83    hwaddr addr, uint32_t val, MemTxAttrs attrs, MemTxResult *result)
  84{
  85    assert(addr < cache->len && 2 <= cache->len - addr);
  86    if (likely(cache->ptr)) {
  87        ST_P(w)(cache->ptr + addr, val);
  88    } else {
  89        ADDRESS_SPACE_ST_CACHED_SLOW(w)(cache, addr, val, attrs, result);
  90    }
  91}
  92
  93static inline void ADDRESS_SPACE_ST_CACHED(q)(MemoryRegionCache *cache,
  94    hwaddr addr, uint64_t val, MemTxAttrs attrs, MemTxResult *result)
  95{
  96    assert(addr < cache->len && 8 <= cache->len - addr);
  97    if (likely(cache->ptr)) {
  98        ST_P(q)(cache->ptr + addr, val);
  99    } else {
 100        ADDRESS_SPACE_ST_CACHED_SLOW(q)(cache, addr, val, attrs, result);
 101    }
 102}
 103
 104#undef ADDRESS_SPACE_ST_CACHED
 105#undef ADDRESS_SPACE_ST_CACHED_SLOW
 106#undef ST_P
 107
 108#undef ENDIANNESS
 109