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 2.1 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    fuzz_dma_read_cb(cache->xlat + addr, 4, cache->mrs.mr, false);
32    if (likely(cache->ptr)) {
33        return LD_P(l)(cache->ptr + addr);
34    } else {
35        return ADDRESS_SPACE_LD_CACHED_SLOW(l)(cache, addr, attrs, result);
36    }
37}
38
39static inline uint64_t ADDRESS_SPACE_LD_CACHED(q)(MemoryRegionCache *cache,
40    hwaddr addr, MemTxAttrs attrs, MemTxResult *result)
41{
42    assert(addr < cache->len && 8 <= cache->len - addr);
43    fuzz_dma_read_cb(cache->xlat + addr, 8, cache->mrs.mr, false);
44    if (likely(cache->ptr)) {
45        return LD_P(q)(cache->ptr + addr);
46    } else {
47        return ADDRESS_SPACE_LD_CACHED_SLOW(q)(cache, addr, attrs, result);
48    }
49}
50
51static inline uint32_t ADDRESS_SPACE_LD_CACHED(uw)(MemoryRegionCache *cache,
52    hwaddr addr, MemTxAttrs attrs, MemTxResult *result)
53{
54    assert(addr < cache->len && 2 <= cache->len - addr);
55    fuzz_dma_read_cb(cache->xlat + addr, 2, cache->mrs.mr, false);
56    if (likely(cache->ptr)) {
57        return LD_P(uw)(cache->ptr + addr);
58    } else {
59        return ADDRESS_SPACE_LD_CACHED_SLOW(uw)(cache, addr, attrs, result);
60    }
61}
62
63#undef ADDRESS_SPACE_LD_CACHED
64#undef ADDRESS_SPACE_LD_CACHED_SLOW
65#undef LD_P
66
67#define ADDRESS_SPACE_ST_CACHED(size) \
68    glue(glue(address_space_st, size), glue(ENDIANNESS, _cached))
69#define ADDRESS_SPACE_ST_CACHED_SLOW(size) \
70    glue(glue(address_space_st, size), glue(ENDIANNESS, _cached_slow))
71#define ST_P(size) \
72    glue(glue(st, size), glue(ENDIANNESS, _p))
73
74static inline void ADDRESS_SPACE_ST_CACHED(l)(MemoryRegionCache *cache,
75    hwaddr addr, uint32_t val, MemTxAttrs attrs, MemTxResult *result)
76{
77    assert(addr < cache->len && 4 <= cache->len - addr);
78    if (likely(cache->ptr)) {
79        ST_P(l)(cache->ptr + addr, val);
80    } else {
81        ADDRESS_SPACE_ST_CACHED_SLOW(l)(cache, addr, val, attrs, result);
82    }
83}
84
85static inline void ADDRESS_SPACE_ST_CACHED(w)(MemoryRegionCache *cache,
86    hwaddr addr, uint32_t val, MemTxAttrs attrs, MemTxResult *result)
87{
88    assert(addr < cache->len && 2 <= cache->len - addr);
89    if (likely(cache->ptr)) {
90        ST_P(w)(cache->ptr + addr, val);
91    } else {
92        ADDRESS_SPACE_ST_CACHED_SLOW(w)(cache, addr, val, attrs, result);
93    }
94}
95
96static inline void ADDRESS_SPACE_ST_CACHED(q)(MemoryRegionCache *cache,
97    hwaddr addr, uint64_t val, MemTxAttrs attrs, MemTxResult *result)
98{
99    assert(addr < cache->len && 8 <= cache->len - addr);
100    if (likely(cache->ptr)) {
101        ST_P(q)(cache->ptr + addr, val);
102    } else {
103        ADDRESS_SPACE_ST_CACHED_SLOW(q)(cache, addr, val, attrs, result);
104    }
105}
106
107#undef ADDRESS_SPACE_ST_CACHED
108#undef ADDRESS_SPACE_ST_CACHED_SLOW
109#undef ST_P
110
111#undef ENDIANNESS
112