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unicorn/qemu/include/exec/cpu_ldst_template.h

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import
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/*
* Software MMU support
*
* Generate inline load/store functions for one MMU mode and data
* size.
*
* Generate a store function as well as signed and unsigned loads. For
* 32 and 64 bit cases, also generate floating point functions with
* the same size.
*
* Not used directly but included from cpu_ldst.h.
*
* Copyright (c) 2003 Fabrice Bellard
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, see <http://www.gnu.org/licenses/>.
*/
#if DATA_SIZE == 8
#define SUFFIX q
#define USUFFIX q
#define DATA_TYPE uint64_t
softmmu: add helper function to pass through retaddr This patch introduces several helpers to pass return address which points to the TB. Correct return address allows correct restoring of the guest PC and icount. These functions should be used when helpers embedded into TB invoke memory operations. Backports commit 282dffc8a4bfe8724548cabb8a26698bde0a6e18 from qemu
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#define SHIFT 3
import
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#elif DATA_SIZE == 4
#define SUFFIX l
#define USUFFIX l
#define DATA_TYPE uint32_t
softmmu: add helper function to pass through retaddr This patch introduces several helpers to pass return address which points to the TB. Correct return address allows correct restoring of the guest PC and icount. These functions should be used when helpers embedded into TB invoke memory operations. Backports commit 282dffc8a4bfe8724548cabb8a26698bde0a6e18 from qemu
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#define SHIFT 2
import
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#elif DATA_SIZE == 2
#define SUFFIX w
#define USUFFIX uw
#define DATA_TYPE uint16_t
#define DATA_STYPE int16_t
softmmu: add helper function to pass through retaddr This patch introduces several helpers to pass return address which points to the TB. Correct return address allows correct restoring of the guest PC and icount. These functions should be used when helpers embedded into TB invoke memory operations. Backports commit 282dffc8a4bfe8724548cabb8a26698bde0a6e18 from qemu
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#define SHIFT 1
import
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#elif DATA_SIZE == 1
#define SUFFIX b
#define USUFFIX ub
#define DATA_TYPE uint8_t
#define DATA_STYPE int8_t
softmmu: add helper function to pass through retaddr This patch introduces several helpers to pass return address which points to the TB. Correct return address allows correct restoring of the guest PC and icount. These functions should be used when helpers embedded into TB invoke memory operations. Backports commit 282dffc8a4bfe8724548cabb8a26698bde0a6e18 from qemu
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#define SHIFT 0
import
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#else
#error unsupported data size
#endif
#if DATA_SIZE == 8
#define RES_TYPE uint64_t
#else
#define RES_TYPE uint32_t
#endif
#ifdef SOFTMMU_CODE_ACCESS
#define ADDR_READ addr_code
#define MMUSUFFIX _cmmu
softmmu: add helper function to pass through retaddr This patch introduces several helpers to pass return address which points to the TB. Correct return address allows correct restoring of the guest PC and icount. These functions should be used when helpers embedded into TB invoke memory operations. Backports commit 282dffc8a4bfe8724548cabb8a26698bde0a6e18 from qemu
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#define URETSUFFIX SUFFIX
#define SRETSUFFIX SUFFIX
import
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#else
#define ADDR_READ addr_read
#define MMUSUFFIX _mmu
softmmu: add helper function to pass through retaddr This patch introduces several helpers to pass return address which points to the TB. Correct return address allows correct restoring of the guest PC and icount. These functions should be used when helpers embedded into TB invoke memory operations. Backports commit 282dffc8a4bfe8724548cabb8a26698bde0a6e18 from qemu
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#define URETSUFFIX USUFFIX
#define SRETSUFFIX glue(s, SUFFIX)
import
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#endif
/* generic load/store macros */
static inline RES_TYPE
softmmu: add helper function to pass through retaddr This patch introduces several helpers to pass return address which points to the TB. Correct return address allows correct restoring of the guest PC and icount. These functions should be used when helpers embedded into TB invoke memory operations. Backports commit 282dffc8a4bfe8724548cabb8a26698bde0a6e18 from qemu
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glue(glue(glue(cpu_ld, USUFFIX), MEMSUFFIX), _ra)(CPUArchState *env,
target_ulong ptr,
uintptr_t retaddr)
import
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{
tcg: Add tlb_index and tlb_entry helpers Isolate the computation of an index from an address into a helper before we change that function. Backports commit 383beda9cf32f795616c3b93f7d6154d70372d4b from qemu
2018-10-23 19:02:42 +00:00
CPUTLBEntry *entry;
import
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RES_TYPE res;
target_ulong addr;
int mmu_idx;
softmmu: add helper function to pass through retaddr This patch introduces several helpers to pass return address which points to the TB. Correct return address allows correct restoring of the guest PC and icount. These functions should be used when helpers embedded into TB invoke memory operations. Backports commit 282dffc8a4bfe8724548cabb8a26698bde0a6e18 from qemu
2018-02-15 17:17:13 +00:00
TCGMemOpIdx oi;
import
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addr = ptr;
mmu_idx = CPU_MMU_INDEX;
tcg: Add tlb_index and tlb_entry helpers Isolate the computation of an index from an address into a helper before we change that function. Backports commit 383beda9cf32f795616c3b93f7d6154d70372d4b from qemu
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entry = tlb_entry(env, mmu_idx, addr);
if (unlikely(entry->ADDR_READ !=
import
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(addr & (TARGET_PAGE_MASK | (DATA_SIZE - 1))))) {
softmmu: add helper function to pass through retaddr This patch introduces several helpers to pass return address which points to the TB. Correct return address allows correct restoring of the guest PC and icount. These functions should be used when helpers embedded into TB invoke memory operations. Backports commit 282dffc8a4bfe8724548cabb8a26698bde0a6e18 from qemu
2018-02-15 17:17:13 +00:00
oi = make_memop_idx(SHIFT, mmu_idx);
res = glue(glue(helper_ret_ld, URETSUFFIX), MMUSUFFIX)(env, addr,
oi, retaddr);
import
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} else {
tcg: Add tlb_index and tlb_entry helpers Isolate the computation of an index from an address into a helper before we change that function. Backports commit 383beda9cf32f795616c3b93f7d6154d70372d4b from qemu
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uintptr_t hostaddr = (uintptr_t)(addr + entry->addend);
import
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res = glue(glue(ld, USUFFIX), _raw)(hostaddr);
}
return res;
}
softmmu: add helper function to pass through retaddr This patch introduces several helpers to pass return address which points to the TB. Correct return address allows correct restoring of the guest PC and icount. These functions should be used when helpers embedded into TB invoke memory operations. Backports commit 282dffc8a4bfe8724548cabb8a26698bde0a6e18 from qemu
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static inline RES_TYPE
glue(glue(cpu_ld, USUFFIX), MEMSUFFIX)(CPUArchState *env, target_ulong ptr)
{
return glue(glue(glue(cpu_ld, USUFFIX), MEMSUFFIX), _ra)(env, ptr, 0);
}
import
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#if DATA_SIZE <= 2
static inline int
softmmu: add helper function to pass through retaddr This patch introduces several helpers to pass return address which points to the TB. Correct return address allows correct restoring of the guest PC and icount. These functions should be used when helpers embedded into TB invoke memory operations. Backports commit 282dffc8a4bfe8724548cabb8a26698bde0a6e18 from qemu
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glue(glue(glue(cpu_lds, SUFFIX), MEMSUFFIX), _ra)(CPUArchState *env,
target_ulong ptr,
uintptr_t retaddr)
import
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{
tcg: Add tlb_index and tlb_entry helpers Isolate the computation of an index from an address into a helper before we change that function. Backports commit 383beda9cf32f795616c3b93f7d6154d70372d4b from qemu
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CPUTLBEntry *entry;
int res;
import
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target_ulong addr;
int mmu_idx;
softmmu: add helper function to pass through retaddr This patch introduces several helpers to pass return address which points to the TB. Correct return address allows correct restoring of the guest PC and icount. These functions should be used when helpers embedded into TB invoke memory operations. Backports commit 282dffc8a4bfe8724548cabb8a26698bde0a6e18 from qemu
2018-02-15 17:17:13 +00:00
TCGMemOpIdx oi;
import
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addr = ptr;
mmu_idx = CPU_MMU_INDEX;
tcg: Add tlb_index and tlb_entry helpers Isolate the computation of an index from an address into a helper before we change that function. Backports commit 383beda9cf32f795616c3b93f7d6154d70372d4b from qemu
2018-10-23 19:02:42 +00:00
entry = tlb_entry(env, mmu_idx, addr);
if (unlikely(entry->ADDR_READ !=
import
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(addr & (TARGET_PAGE_MASK | (DATA_SIZE - 1))))) {
softmmu: add helper function to pass through retaddr This patch introduces several helpers to pass return address which points to the TB. Correct return address allows correct restoring of the guest PC and icount. These functions should be used when helpers embedded into TB invoke memory operations. Backports commit 282dffc8a4bfe8724548cabb8a26698bde0a6e18 from qemu
2018-02-15 17:17:13 +00:00
oi = make_memop_idx(SHIFT, mmu_idx);
res = (DATA_STYPE)glue(glue(helper_ret_ld, SRETSUFFIX),
MMUSUFFIX)(env, addr, oi, retaddr);
import
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} else {
tcg: Add tlb_index and tlb_entry helpers Isolate the computation of an index from an address into a helper before we change that function. Backports commit 383beda9cf32f795616c3b93f7d6154d70372d4b from qemu
2018-10-23 19:02:42 +00:00
uintptr_t hostaddr = (uintptr_t)(addr + entry->addend);
import
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res = glue(glue(lds, SUFFIX), _raw)(hostaddr);
}
return res;
}
softmmu: add helper function to pass through retaddr This patch introduces several helpers to pass return address which points to the TB. Correct return address allows correct restoring of the guest PC and icount. These functions should be used when helpers embedded into TB invoke memory operations. Backports commit 282dffc8a4bfe8724548cabb8a26698bde0a6e18 from qemu
2018-02-15 17:17:13 +00:00
static inline int
glue(glue(cpu_lds, SUFFIX), MEMSUFFIX)(CPUArchState *env, target_ulong ptr)
{
return glue(glue(glue(cpu_lds, SUFFIX), MEMSUFFIX), _ra)(env, ptr, 0);
}
import
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#endif
#ifndef SOFTMMU_CODE_ACCESS
/* generic store macro */
static inline void
softmmu: add helper function to pass through retaddr This patch introduces several helpers to pass return address which points to the TB. Correct return address allows correct restoring of the guest PC and icount. These functions should be used when helpers embedded into TB invoke memory operations. Backports commit 282dffc8a4bfe8724548cabb8a26698bde0a6e18 from qemu
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glue(glue(glue(cpu_st, SUFFIX), MEMSUFFIX), _ra)(CPUArchState *env,
target_ulong ptr,
RES_TYPE v, uintptr_t retaddr)
import
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{
tcg: Add tlb_index and tlb_entry helpers Isolate the computation of an index from an address into a helper before we change that function. Backports commit 383beda9cf32f795616c3b93f7d6154d70372d4b from qemu
2018-10-23 19:02:42 +00:00
CPUTLBEntry *entry;
import
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target_ulong addr;
int mmu_idx;
softmmu: add helper function to pass through retaddr This patch introduces several helpers to pass return address which points to the TB. Correct return address allows correct restoring of the guest PC and icount. These functions should be used when helpers embedded into TB invoke memory operations. Backports commit 282dffc8a4bfe8724548cabb8a26698bde0a6e18 from qemu
2018-02-15 17:17:13 +00:00
TCGMemOpIdx oi;
import
2015-08-21 07:04:50 +00:00
addr = ptr;
mmu_idx = CPU_MMU_INDEX;
tcg: Add tlb_index and tlb_entry helpers Isolate the computation of an index from an address into a helper before we change that function. Backports commit 383beda9cf32f795616c3b93f7d6154d70372d4b from qemu
2018-10-23 19:02:42 +00:00
entry = tlb_entry(env, mmu_idx, addr);
cputlb: read CPUTLBEntry.addr_write atomically Updates can come from other threads, so readers that do not take tlb_lock must use atomic_read to avoid undefined behaviour (UB). This completes the conversion to tlb_lock. This conversion results on average in no performance loss, as the following experiments (run on an Intel i7-6700K CPU @ 4.00GHz) show. 1. aarch64 bootup+shutdown test: - Before: Performance counter stats for 'taskset -c 0 ../img/aarch64/die.sh' (10 runs): 7487.087786 task-clock (msec) # 0.998 CPUs utilized ( +- 0.12% ) 31,574,905,303 cycles # 4.217 GHz ( +- 0.12% ) 57,097,908,812 instructions # 1.81 insns per cycle ( +- 0.08% ) 10,255,415,367 branches # 1369.747 M/sec ( +- 0.08% ) 173,278,962 branch-misses # 1.69% of all branches ( +- 0.18% ) 7.504481349 seconds time elapsed ( +- 0.14% ) - After: Performance counter stats for 'taskset -c 0 ../img/aarch64/die.sh' (10 runs): 7462.441328 task-clock (msec) # 0.998 CPUs utilized ( +- 0.07% ) 31,478,476,520 cycles # 4.218 GHz ( +- 0.07% ) 57,017,330,084 instructions # 1.81 insns per cycle ( +- 0.05% ) 10,251,929,667 branches # 1373.804 M/sec ( +- 0.05% ) 173,023,787 branch-misses # 1.69% of all branches ( +- 0.11% ) 7.474970463 seconds time elapsed ( +- 0.07% ) 2. SPEC06int: SPEC06int (test set) [Y axis: Speedup over master] 1.15 +-+----+------+------+------+------+------+-------+------+------+------+------+------+------+----+-+ | | 1.1 +-+.................................+++.............................+ tlb-lock-v2 (m+++x) +-+ | +++ | +++ tlb-lock-v3 (spinl|ck) | | +++ | | +++ +++ | | | 1.05 +-+....+++...........####.........|####.+++.|......|.....###....+++...........+++....###.........+-+ | ### ++#| # |# |# ***### +++### +++#+# | +++ | #|# ### | 1 +-+++***+#++++####+++#++#++++++++++#++#+*+*++#++++#+#+****+#++++###++++###++++###++++#+#++++#+#+++-+ | *+* # #++# *** # #### *** # * *++# ****+# *| * # ****|# |# # #|# #+# # # | 0.95 +-+..*.*.#....#..#.*|*..#...#..#.*|*..#.*.*..#.*|.*.#.*++*.#.*++*+#.****.#....#+#....#.#..++#.#..+-+ | * * # # # *|* # # # *|* # * * # *++* # * * # * * # * |* # ++# # # # *** # | | * * # ++# # *+* # # # *|* # * * # * * # * * # * * # *++* # **** # ++# # * * # | 0.9 +-+..*.*.#...|#..#.*.*..#.++#..#.*|*..#.*.*..#.*..*.#.*..*.#.*..*.#.*..*.#.*.|*.#...|#.#..*.*.#..+-+ | * * # *** # * * # |# # *+* # * * # * * # * * # * * # * * # *++* # |# # * * # | 0.85 +-+..*.*.#..*|*..#.*.*..#.***..#.*.*..#.*.*..#.*..*.#.*..*.#.*..*.#.*..*.#.*..*.#.****.#..*.*.#..+-+ | * * # *+* # * * # *|* # * * # * * # * * # * * # * * # * * # * * # * |* # * * # | | * * # * * # * * # *+* # * * # * * # * * # * * # * * # * * # * * # * |* # * * # | 0.8 +-+..*.*.#..*.*..#.*.*..#.*.*..#.*.*..#.*.*..#.*..*.#.*..*.#.*..*.#.*..*.#.*..*.#.*++*.#..*.*.#..+-+ | * * # * * # * * # * * # * * # * * # * * # * * # * * # * * # * * # * * # * * # | 0.75 +-+--***##--***###-***###-***###-***###-***###-****##-****##-****##-****##-****##-****##--***##--+-+ 400.perlben401.bzip2403.gcc429.m445.gob456.hmme45462.libqua464.h26471.omnet473483.xalancbmkgeomean png: https://imgur.com/a/BHzpPTW Notes: - tlb-lock-v2 corresponds to an implementation with a mutex. - tlb-lock-v3 corresponds to the current implementation, i.e. a spinlock and a single lock acquisition in tlb_set_page_with_attrs. Backports commit 403f290c0603f35f2d09c982bf5549b6d0803ec1 from qemu
2018-10-23 19:37:32 +00:00
if (unlikely(tlb_addr_write(entry) !=
import
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(addr & (TARGET_PAGE_MASK | (DATA_SIZE - 1))))) {
softmmu: add helper function to pass through retaddr This patch introduces several helpers to pass return address which points to the TB. Correct return address allows correct restoring of the guest PC and icount. These functions should be used when helpers embedded into TB invoke memory operations. Backports commit 282dffc8a4bfe8724548cabb8a26698bde0a6e18 from qemu
2018-02-15 17:17:13 +00:00
oi = make_memop_idx(SHIFT, mmu_idx);
glue(glue(helper_ret_st, SUFFIX), MMUSUFFIX)(env, addr, v, oi,
retaddr);
import
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} else {
tcg: Add tlb_index and tlb_entry helpers Isolate the computation of an index from an address into a helper before we change that function. Backports commit 383beda9cf32f795616c3b93f7d6154d70372d4b from qemu
2018-10-23 19:02:42 +00:00
uintptr_t hostaddr = (uintptr_t)(addr + entry->addend);
import
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glue(glue(st, SUFFIX), _raw)(hostaddr, v);
}
}
softmmu: add helper function to pass through retaddr This patch introduces several helpers to pass return address which points to the TB. Correct return address allows correct restoring of the guest PC and icount. These functions should be used when helpers embedded into TB invoke memory operations. Backports commit 282dffc8a4bfe8724548cabb8a26698bde0a6e18 from qemu
2018-02-15 17:17:13 +00:00
static inline void
glue(glue(cpu_st, SUFFIX), MEMSUFFIX)(CPUArchState *env, target_ulong ptr,
RES_TYPE v)
{
glue(glue(glue(cpu_st, SUFFIX), MEMSUFFIX), _ra)(env, ptr, v, 0);
}
import
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#if DATA_SIZE == 8
static inline float64 glue(cpu_ldfq, MEMSUFFIX)(CPUArchState *env,
target_ulong ptr)
{
union {
float64 d;
uint64_t i;
} u;
u.i = glue(cpu_ldq, MEMSUFFIX)(env, ptr);
return u.d;
}
static inline void glue(cpu_stfq, MEMSUFFIX)(CPUArchState *env,
target_ulong ptr, float64 v)
{
union {
float64 d;
uint64_t i;
} u;
u.d = v;
glue(cpu_stq, MEMSUFFIX)(env, ptr, u.i);
}
#endif /* DATA_SIZE == 8 */
#if DATA_SIZE == 4
static inline float32 glue(cpu_ldfl, MEMSUFFIX)(CPUArchState *env,
target_ulong ptr)
{
union {
float32 f;
uint32_t i;
} u;
u.i = glue(cpu_ldl, MEMSUFFIX)(env, ptr);
return u.f;
}
static inline void glue(cpu_stfl, MEMSUFFIX)(CPUArchState *env,
target_ulong ptr, float32 v)
{
union {
float32 f;
uint32_t i;
} u;
u.f = v;
glue(cpu_stl, MEMSUFFIX)(env, ptr, u.i);
}
#endif /* DATA_SIZE == 4 */
#endif /* !SOFTMMU_CODE_ACCESS */
#undef RES_TYPE
#undef DATA_TYPE
#undef DATA_STYPE
#undef SUFFIX
#undef USUFFIX
#undef DATA_SIZE
#undef MMUSUFFIX
#undef ADDR_READ
softmmu: add helper function to pass through retaddr This patch introduces several helpers to pass return address which points to the TB. Correct return address allows correct restoring of the guest PC and icount. These functions should be used when helpers embedded into TB invoke memory operations. Backports commit 282dffc8a4bfe8724548cabb8a26698bde0a6e18 from qemu
2018-02-15 17:17:13 +00:00
#undef URETSUFFIX
#undef SRETSUFFIX
#undef SHIFT
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