include/exec/memory_ldst_cached.inc.h

   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
  27 static 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
  38 static 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
  49 static 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
  71 static 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
  82 static 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
  93 static 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